References
- Abashar, M. E. E. (2018). Ultra-clean hydrogen production by ammonia decomposition. Journal of King Saud University - Engineering Sciences, 30(1), 2–11. https://doi.org/https://doi.org/10.1016/j.jksues.2016.01.002
- Abubaker, J., Cederlund, H., Arthurson, V., & Pell, M. (2013). Bacterial community structure and microbial activity in different soils amended with biogas residues and cattle slurry. Applied Soil Ecology, 72, 171–180. https://doi.org/https://doi.org/10.1016/j.apsoil.2013.07.002
- Acharya, B. K., Mohana, S., Jog, R., Divecha, J., & Madamwar, D. (2010). Utilization of anaerobically treated distillery spent wash for production of cellulases under solid-state fermentation. Journal of Environmental Management, 91(10), 2019–2027. https://doi.org/https://doi.org/10.1016/j.jenvman.2010.05.001
- Akerstrom, A. M., Mortensen, L. M., Rusten, B., & Gislerod, H. R. (2014). Biomass production and nutrient removal by Chlorella sp. as affected by sludge liquor concentration. Journal of Environmental Management, 144, 118–124. https://doi.org/https://doi.org/10.1016/j.jenvman.2014.05.015
- Al Seadi, T., & Lukehurst, C. (2012). Quality management of digestate from biogas plants used as fertiliser. IEA Bioenergy, 37, 40.
- Alatalo, S.-M., Mäkilä, E., Repo, E., Heinonen, M., Salonen, J., Kukk, E., Sillanpää, M., & Titirici, M.-M. (2016). Meso-and microporous soft templated hydrothermal carbons for dye removal from water. Green Chemistry, 18(4), 1137–1146. https://doi.org/https://doi.org/10.1039/C5GC01796C
- Alatalo, S. M., Repo, E., Mäkilä, E., Salonen, J., Vakkilainen, E., & Sillanpää, M. (2013). Adsorption behavior of hydrothermally treated municipal sludge & pulp and paper industry sludge. Bioresource Technology, 147, 71–76. https://doi.org/https://doi.org/10.1016/j.biortech.2013.08.034
- Albuquerque, M. G. E., Carvalho, G., Kragelund, C., Silva, A. F., Barreto Crespo, M. T., Reis, M. A. M., & Nielsen, P. H. (2013). Link between microbial composition and carbon substrate-uptake preferences in a PHA-storing community. The ISME Journal, 7(1), 1–12. https://doi.org/https://doi.org/10.1038/ismej.2012.74
- Alburquerque, J. A., de la Fuente, C., Campoy, M., Carrasco, L., Nájera, I., Baixauli, C., Caravaca, F., Roldán, A., Cegarra, J., & Bernal, M. P. (2012). Agricultural use of digestate for horticultural crop production and improvement of soil properties. European Journal of Agronomy, 43, 119–128. https://doi.org/https://doi.org/10.1016/j.eja.2012.06.001
- Altun, M. (2019). Polyhydroxyalkanoate production using waste vegetable oil and filtered digestate liquor of chicken manure. Preparative Biochemistry & Biotechnology, 49(5), 493–500. https://doi.org/https://doi.org/10.1080/10826068.2019.1587626
- Ashwath, R., Chanakya, H. N., & Malayil, S. (2016). Utilization of biogas digester liquid for higher mushroom yields. Procedia Environmental Sciences, 35, 781–784. https://doi.org/https://doi.org/10.1016/j.proenv.2016.07.093
- Ayre, J. M., Moheimani, N. R., & Borowitzka, M. A. (2017). Growth of microalgae on undiluted anaerobic digestate of piggery effluent with high ammonium concentrations. Algal Research, 24, 218–226. https://doi.org/https://doi.org/10.1016/j.algal.2017.03.023
- Babson, D. M., Bellman, K., Prakash, S., & Fennell, D. E. (2013). Anaerobic digestion for methane generation and ammonia reforming for hydrogen production: A thermodynamic energy balance of a model system to demonstrate net energy feasibility. Biomass and Bioenergy, 56, 493–505. https://doi.org/https://doi.org/10.1016/j.biombioe.2013.05.024
- Bachmann, S., Gropp, M., & Eichler-Löbermann, B. (2014). Phosphorus availability and soil microbial activity in a 3 year field experiment amended with digested dairy slurry. Biomass and Bioenergy, 70, 429–439. https://doi.org/https://doi.org/10.1016/j.biombioe.2014.08.004
- Ballardo, C., Barrena, R., Artola, A., & Sánchez, A. (2017). A novel strategy for producing compost with enhanced biopesticide properties through solid-state fermentation of biowaste and inoculation with Bacillus thuringiensis. Waste Management (New York, N.Y.), 70, 53–58. https://doi.org/https://doi.org/10.1016/j.wasman.2017.09.041
- Banks, C. J., Salter, A. M., & Chesshire, M. (2007). Potential of anaerobic digestion for mitigation of greenhouse gas emissions and production of renewable energy from agriculture: Barriers and incentives to widespread adoption in Europe. Water Science & Technology, 55, 165–173. https://doi.org/https://doi.org/10.2166/wst.2007.319
- Barłóg, P., Hlisnikovský, L., & Kunzová, E. (2020a). Concentration of trace metals in winter wheat and spring barley as a result of digestate, cattle slurry, and mineral fertilizer application. Environmental Science and Pollution Research International, 27(5), 4769–4785. https://doi.org/https://doi.org/10.1007/s11356-019-07304-2
- Barłóg, P., Hlisnikovský, L., & Kunzová, E. (2020b). Effect of digestate on soil organic carbon and plant-available nutrient content compared to cattle slurry and mineral fertilization. Agronomy, 10(3), 379. https://doi.org/https://doi.org/10.3390/agronomy10030379
- Barzee, T. J., Edalati, A., El-Mashad, H., Wang, D., Scow, K., & Zhang, R. (2019). Digestate biofertilizers support similar or higher tomato yields and quality than mineral fertilizer in a subsurface drip fertigation system. Frontiers in Sustainable Food Systems, 3, 58. https://doi.org/https://doi.org/10.3389/fsufs.2019.00058
- Baştabak, B., & Koçar, G. (2020a). A review of the biogas digestate in agricultural framework. Journal of Material Cycles and Waste Management, 22, 1318–1327.
- Baştabak, B., & Koçar, G. (2020b). Biogas digestates in substitution for chemical fertilizers: A comparative study on Lactuca sativa seedling cultivation in Turkey.
- Becker, R., Dorgerloh, U., Helmis, M., Mumme, J., Diakité, M., & Nehls, I. (2013). Hydrothermally carbonized plant materials: Patterns of volatile organic compounds detected by gas chromatography. Bioresource Technology, 130, 621–628. https://doi.org/https://doi.org/10.1016/j.biortech.2012.12.102
- Berg, U., Donnert, D., Weidler, P. G., Kaschka, E., Knoll, G., & Nüesch, R. (2006). Phosphorus removal and recovery from wastewater by tobermorite-seeded crystallisation of calcium phosphate. Water Science and Technology, 53(3), 131–138. https://doi.org/https://doi.org/10.2166/wst.2006.084
- Bjornsson, W. J., Nicol, R. W., Dickinson, K. E., & McGinn, P. J. (2013). Anaerobic digestates are useful nutrient sources for microalgae cultivation: Functional coupling of energy and biomass production. Journal of Applied Phycology, 25(5), 1523–1528. https://doi.org/https://doi.org/10.1007/s10811-012-9968-0
- Bougnom, B. P., Niederkofler, C., Knapp, B. A., Stimpfl, E., & Insam, H. (2012). Residues from renewable energy production: Their value for fertilizing pastures. Biomass and Bioenergy, 39, 290–295. https://doi.org/https://doi.org/10.1016/j.biombioe.2012.01.017
- British Standards Institution (BSI). (2010). Specification for whole digestate, separated liquor and separated fibre derived from the anaerobic digestion of source-segregated biodegradable materials. PAS 110:2010. British Standards Institution. pp. 60. http://www.wrap.org.uk/sites/files/wrap/PAS110_vis_10.pdf
- Cai, T., Park, S. Y., & Li, Y. (2013). Nutrient recovery from wastewater streams by microalgae: Status and prospects. Renewable and Sustainable Energy Reviews, 19, 360–369. https://doi.org/https://doi.org/10.1016/j.rser.2012.11.030
- Campos, J. L., Crutchik, D., Franchi, O., Pavissich, J. P., Belmonte, M., Pedrouso, A., Mosquera-Corral, A., & Val del Rio, A. (2019). Nitrogen and phosphorus recovery from anaerobically pretreated agro-foodwastes: A Review. Frontiers in Sustainable Food Systems, 2, 91. https://doi.org/https://doi.org/10.3389/fsufs.2018.00091
- Capodaglio, A. G., Hlavínek, P., & Raboni, M. (2015). Physico-chemical technologies for nitrogen removal from wastewaters: A review. Revista Ambiente & Agua, 10, 481–498. https://doi.org/https://doi.org/10.4136/ambi-agua.1618
- Castilho, L. R., Mitchell, D. A., & Freire, D. M. (2009). Production of polyhydroxyalkanoates (PHAs) from waste materials and by-products by submerged and solid-state fermentation. Bioresource Technology, 100(23), 5996–6009. https://doi.org/https://doi.org/10.1016/j.biortech.2009.03.088
- Cavalheiro, J. M., de Almeida, M. C. M., Grandfils, C., & Da Fonseca, M. (2009). Poly (3-hydroxybutyrate) production by Cupriavidus necator using waste glycerol. Process Biochemistry, 44(5), 509–515. https://doi.org/https://doi.org/10.1016/j.procbio.2009.01.008
- Cerda, A., Mejias, L., Rodríguez, P., Rodríguez, A., Artola, A., Font, X., Gea, T., & Sánchez, A. (2019). Valorisation of digestate from biowaste through solid-state fermentation to obtain value added bioproducts: A first approach. Bioresource Technology, 271, 409–416. https://doi.org/https://doi.org/10.1016/j.biortech.2018.09.131
- Cerrillo, M., Viñas, M., & Bonmatí, A. (2017). Microbial fuel cells for polishing effluents of anaerobic digesters under inhibition, due to organic and nitrogen overloads. Journal of Chemical Technology & Biotechnology, 92, 2912–2920. https://doi.org/https://doi.org/10.1002/jctb.5308
- Chantigny, M. H., Angers, D. A., Bélanger, G., Rochette, P., Eriksen-Hamel, N., Bittman, S., Buckley, K., Massé, D., & Gasser, M. O. (2008). Yield and nutrient export of grain corn fertilized with raw and treated liquid swine manure. Agronomy Journal, 100(5), 1303–1309. https://doi.org/https://doi.org/10.2134/agronj2007.0361
- Cheddie, D. (2012). Ammonia as a hydrogen source for fuel cells: A review hydrogen energy—Challenges and perspectives. https://doi.org/https://doi.org/10.5772/47759
- Chen, H., Meng, H., Nie, Z., & Zhang, M. (2013). Polyhydroxyalkanoate production from fermented volatile fatty acids: Effect of pH and feeding regimes. Bioresource Technology, 128, 533–538. https://doi.org/https://doi.org/10.1016/j.biortech.2012.10.121
- Chen, R., Blagodatskaya, E., Senbayram, M., Blagodatsky, S., Myachina, O., Dittert, K., & Kuzyakov, Y. (2012). Decomposition of biogas residues in soil and their effects on microbial growth kinetics and enzyme activities. Biomass and Bioenergy, 45, 221–229. https://doi.org/https://doi.org/10.1016/j.biombioe.2012.06.014
- Cheng, J., Xu, J., Huang, Y., Li, Y., Zhou, J., & Cen, K. (2015). Growth optimisation of microalga mutant at high CO2, concentration to purify undiluted anaerobic digestion effluent of swine manure. Bioresource Technology, 177, 240–246. https://doi.org/https://doi.org/10.1016/j.biortech.2014.11.099
- Christian, S. J., Broeders, E., & Menkveld, H. W. H. (2016). Recovery of ammonia from digestate as fertilizer. Proceedings of the Water Environment Federation, 2016(5), 932–937. https://doi.org/https://doi.org/10.2175/193864716819715536
- Clemens, J., Trimborn, M., Weiland, P., & Amon, B. (2006). Mitigation of greenhouse gas emissions by anaerobic digestion of cattle slurry. Agriculture, Ecosystems & Environment, 112, 171–177. https://doi.org/https://doi.org/10.1016/j.agee.2005.08.016
- Collins, M. D., Lawson, P. A., Willems, A., Cordoba, J. J., Fernandez-Garayzabal, J., Garcia, P., & Farrow, J. A. E. (1994). The phylogeny of the genus Clostridium: Proposal of five new genera and eleven new species combinations. International Journal of Systematic and Evolutionary Microbiology, 44(4), 812–826.
- Cornel, P., & Schaum, C. (2009). Phosphorus recovery from wastewater: Needs, technologies and costs. Water Science and Technology, 59(6), 1069–1076. https://doi.org/https://doi.org/10.2166/wst.2009.045
- Corré, W. & Conijn, J. (2016). Biogas production and digestate utilization from agricultural residues. HYSOL project report.
- Correa, C. R., Bernardo, M., Ribeiro, R. P., Esteves, I. A., & Kruse, A. (2017). Evaluation of hydrothermal carbonization as a preliminary step for the production of functional materials from biogas digestate. Journal of Analytical and Applied Pyrolysis, 124, 461–474. https://doi.org/https://doi.org/10.1016/j.jaap.2017.02.014
- Czubaszek, R., & Wysocka-Czubaszek, A. (2018). Emissions of carbon dioxide and methane from fields fertilized with digestate from an agricultural biogas plant. International Agrophysics, 32(1), 29–37. https://doi.org/https://doi.org/10.1515/intag-2016-0087
- Daverey, A., Su, S.-H., Huang, Y.-T., & Lin, J.-G. (2012). Nitrogen removal from opto-electronic wastewater using the simultaneous partial nitrification, anaerobic ammonium oxidation and denitrification (SNAD) process in sequencing batch reactor. Bioresource Technology, 113, 225–231. https://doi.org/https://doi.org/10.1016/j.biortech.2011.12.004
- Demirel, B., Göl, N. P., & Onay, T. T. (2013). Evaluation of heavy metal content in digestate from batch anaerobic co-digestion of sunflower hulls and poultry manure. Journal of Material Cycles and Waste Management, 15(2), 242–246. https://doi.org/https://doi.org/10.1007/s10163-013-0142-9 https://doi.org/https://doi.org/10.1007/s10163-012-0107-4
- Demirer, U. S., Demirer, G. N., & Chen, S. (2005). Ammonia removal from anaerobically digested dairy manure by struvite precipitation. Process Biochemistry, 40(12), 3667–3674. https://doi.org/https://doi.org/10.1016/j.procbio.2005.02.028
- Desmidt, E., Ghyselbrecht, K., Zhang, Y., Pinoy, L., Van der Bruggen, B., Verstraete, W., Rabaey, K., & Meesschaert, B. (2015). Global phosphorus scarcity and full-scale P-recovery techniques: A review. Critical Reviews in Environmental Science and Technology, 45(4), 336–384. https://doi.org/https://doi.org/10.1080/10643389.2013.866531
- Di Domenico, E. G., Petroni, G., Mancini, D., Geri, A., Di Palma, L., & Ascenzioni, F. (2015). Development of electroactive and anaerobic ammonium-oxidizing (anammox) biofilms from digestate in microbial fuel cells. BioMed Research International, 2015, 351014. https://doi.org/https://doi.org/10.1155/2015/351014
- Dickinson, K., Bjornsson, W., Garrison, L., Whitney, C., Park, K., Banskota, A., & McGinn, P. (2015). Simultaneous remediation of nutrients from liquid anaerobic digestate and municipal wastewater by the microalga Scenedesmus sp. AMDD grown in continuous chemostats. Journal of Applied Microbiology, 118(1), 75–83. https://doi.org/https://doi.org/10.1111/jam.12681
- Dohanyos, M. (2000). Anaerobní čistírenské technologie. 1. vyd. Brno: NOEL 2000, 1998, 343 s.
- Donar, Y. O., Çağlar, E., & Sınağ, A. (2016). Preparation and characterization of agricultural waste biomass based hydrochars. Fuel, 183, 366–372. https://doi.org/https://doi.org/10.1016/j.fuel.2016.06.108
- DVO Inc. (2015). Advanced phosphorus recovery system introduced by DVO. http://www.dvoinc.com/phosphorus-recovery.php
- European Biogas Association (EBA). (2015). Digestate Factsheet: The value of organic fertilisers from Europe’s economy, society and environment.
- European Commission (EC). (2006). Regulation (EC) No. 208/2006 of 7 February 2006 amending Annexes VI and VIII to regulation (EC) No. 1774/2002 of the European parliament and of the council as regards processing standards for biogas and composting plants and requirements for manure. Official Journal of European Community, L36, 25–31. https://publications.europa.eu/en/publication-detail/-/publication/eb5ea96c-1ee9-4654-931a-37a1f581b32e/language-en
- Egle, L., Rechberger, H., & Zessner, M. (2015). Overview and description of technologies for recovering phosphorus from municipal wastewater. Resources, Conservation and Recycling, 105, 325–346. https://doi.org/https://doi.org/10.1016/j.resconrec.2015.09.016
- El-Deen, S. E. A. S., & Zhang, F. (2012). Synthesis of sludge @ carbon nanocomposite for the recovery of as (V) from wastewater. Procedia Environmental Sciences, 16, 378–390. https://doi.org/https://doi.org/10.1016/j.proenv.2012.10.054
- Endres, H.-J., & Siebert-Raths, A. (2009). Technische biopolymere. Rahmenbedingungen, marktsituation, herstellung, aufbau und eigenschaften (1st ed.). Hanser.
- Erkelens, M., Ward, A. J., Ball, A. S., & Lewis, D. M. (2014). Microalgae digestate effluent as a growth medium for Tetraselmis sp. in the production of biofuels. Bioresource Technology, 167, 81–86. https://doi.org/https://doi.org/10.1016/j.biortech.2014.05.126
- Escala, M., Zumbuhl, T., Koller, C., Junge, R., & Krebs, R. (2012). Hydrothermal carbonization as an energy-efficient alternative to established drying technologies for sewage sludge: A feasibility study on a laboratory scale. Energy & Fuels, 27, 454–460. https://doi.org/https://doi.org/10.1021/ef3015266
- Evans, T. (2009). Climate change impacts of food waste diversion to anaerobic digesters. Proceedings of the Water Environment Federation, 2009(3), 1056–1076. https://doi.org/https://doi.org/10.2175/193864709793846592
- Fang, W., Zhang, P., Zhang, X., Zhu, X., van Lier, J. B., & Spanjers, H. (2018). White rot fungi pretreatment to advance volatile fatty acid production from solid-state fermentation of solid digestate: Efficiency and mechanisms. Energy, 162, 534–541. https://doi.org/https://doi.org/10.1016/j.energy.2018.08.082
- Feng, H., Zheng, M., Dong, H., Xiao, Y., Hu, H., Sun, Z., Long, C., Cai, Y., Zhao, X., Zhang, H., Lei, B., & Liu, Y. (2015). Three-dimensional honeycomb-like hierarchically structured carbon for high-performance supercapacitors derived from high-ash-content sewage sludge. Journal of Materials Chemistry A, 3(29), 15225–15234. https://doi.org/https://doi.org/10.1039/C5TA03217B
- Fonts, I., Gea, G., Azuara, M., Ábrego, J., & Arauzo, J. (2012). Sewage sludge pyrolysis for liquid production: A review. Renewable and Sustainable Energy Reviews, 16(5), 2781–2805. https://doi.org/https://doi.org/10.1016/j.rser.2012.02.070
- Fouda, S., von Tucher, S., Lichti, F., & Schmidhalter, U. (2013). Nitrogen availability of various biogas residues applied to ryegrass. Journal of Plant Nutrition and Soil Science, 176(4), 572–584. https://doi.org/https://doi.org/10.1002/jpln.201100233
- Fouilland, E., Vasseur, C., Leboulanger, C., Le Floc'h, E., Carré, C., Marty, B., Steyer, J.-P., & Sialve, B. (2014). Coupling algal biomass production and anaerobic digestion: Production assessment of some native temperate and tropical microalgae. Biomass and Bioenergy, 70, 564–569. https://doi.org/https://doi.org/10.1016/j.biombioe.2014.08.027
- Franchino, M., Comino, E., Bona, F., & Riggio, V. A. (2013). Growth of three microalgae strains and nutrient removal from an agro-zootechnical digestate . Chemosphere, 92(6), 738–744. https://doi.org/https://doi.org/10.1016/j.chemosphere.2013.04.023
- Franzoso, F., Vaca-Garcia, C., Rouilly, A., Evon, P., Montoneri, E., Persico, P., Mendichi, R., Nisticò, R., & Francavilla, M. (2016). Extruded versus solvent cast blends of poly (vinyl alcohol‐co‐ethylene) and biopolymers isolated from municipal biowaste. Journal of Applied Polymer Science, 133(9), n/a–n/a. https://doi.org/https://doi.org/10.1002/app.43009
- Fraters, D., Boumans, L. J. M., van Drecht, G., de Haan, T., & de Hoop, W. D. (1998). Nitrogen monitoring in groundwater in the sandy regions of the Netherlands. Environmental Pollution, 102(1), 479–485. https://doi.org/https://doi.org/10.1016/B978-0-08-043201-4.50070-8 https://doi.org/https://doi.org/10.1016/S0269-7491(98)80072-9
- Frischmann, P. (2012). Enhancement and treatment of digestates from anaerobic digestion. A review of enhancement techniques, processing options and novel digestate products Project code: OMK006-002 Research date: Feb.
- Fuchs, W., & Drosg, B. (2013). Assessment of the state of the art of technologies for the processing of digestate residue from anaerobic digesters. Water Science and Technology, 67(9), 1984–1993. https://doi.org/https://doi.org/10.2166/wst.2013.075
- Funke, A., Mumme, J., Koon, M., & Diakité, M. (2013). Cascaded production of biogas and hydrochar from wheat straw: Energetic potential and recovery of carbon and plant nutrients. Biomass and Bioenergy, 58, 229–237. https://doi.org/https://doi.org/10.1016/j.biombioe.2013.08.018
- Funke, A., Reebs, F., & Kruse, A. (2013). Experimental comparison of hydrothermal and vapothermal carbonization. Fuel Processing Technology, 115, 261–269. https://doi.org/https://doi.org/10.1016/j.fuproc.2013.04.020
- Funke, A., & Ziegler, F. (2010). Hydrothermal carbonization of biomass: A summary and discussion of chemical mechanisms for process engineering. Biofuels, Bioproducts and Biorefining, 4(2), 160–177. https://doi.org/https://doi.org/10.1002/bbb.198
- Furukawa, K., Lieu, P. K., Tokitoh, H., & Fujii, T. (2006). Development of single-stage nitrogen removal using anammox and partial nitritation (SNAP) and its treatment performances. Water Science and Technology, 53(6), 83–90. https://doi.org/https://doi.org/10.2166/wst.2006.175
- Fux, C., & Siegrist, H. (2004). Nitrogen removal from sludge digester liquids by nitrification/denitrification or partial nitritation/anammox: Environmental and economical considerations. Water Science and Technology, 50(10), 19–26. https://doi.org/https://doi.org/10.2166/wst.2004.0599
- Gálvez, A., Greenman, J., & Ieropoulos, I. (2009). Landfill leachate treatment with microbial fuel cells; scale-up through plurality. Bioresource Technology, 100(21), 5085–5091. https://doi.org/https://doi.org/10.1016/j.biortech.2009.05.061
- Gao, D.-W., Hu, Q., Yao, C., & Ren, N.-Q. (2014). Treatment of domestic wastewater by an integrated anaerobic fluidized-bed membrane bioreactor under moderate to low temperature conditions. Bioresource Technology, 159, 193–198. https://doi.org/https://doi.org/10.1016/j.biortech.2014.02.086
- Gao, T., & Li, X. (2011). Using thermophilic anaerobic digestate effluent to replace freshwater for bioethanol production. Bioresource Technology, 102(2), 2126–2129. https://doi.org/https://doi.org/10.1016/j.biortech.2010.08.088
- Gao, Z., Zhang, Y., Song, N., & Li, X. (2017). Biomass-derived renewable carbon materials for electrochemical energy storage. Materials Research Letters, 5(2), 69–88. https://doi.org/https://doi.org/10.1080/21663831.2016.1250834
- Garlapalli, R. K., Wirth, B., & Reza, M. T. (2016). Pyrolysis of hydrochar from digestate: Effect of hydrothermal carbonization and pyrolysis temperatures on pyrochar formation. Bioresource Technology, 220, 168–174. https://doi.org/https://doi.org/10.1016/j.biortech.2016.08.071
- Ge, Z., Zhang, F., Grimaud, J., Hurst, J., & He, Z. (2013). Long-term investigation of microbial fuel cells treating primary sludge or digested sludge. Bioresource Technology, 136, 509–514. https://doi.org/https://doi.org/10.1016/j.biortech.2013.03.016
- Gerardo, M. L., Aljohani, N. H., Oatley-Radcliffe, D. L., & Lovitt, R. W. (2015). Moving towards sustainable resources: Recovery and fractionation of nutrients from dairy manure digestate using membranes. Water Research, 80, 80–89. https://doi.org/https://doi.org/10.1016/j.watres.2015.05.016
- Gerardo, M. L., Zacharof, M. P., & Lovitt, R. W. (2013). Strategies for the recovery of nutrients and metals from anaerobically digested dairy farm sludge using cross-flow microfiltration. Water Research, 47(14), 4833–4842. https://doi.org/https://doi.org/10.1016/j.watres.2013.04.019
- Gioelli, F., Dinuccio, E., & Balsari, P. (2011). Residual biogas potential from the storage tanks of non-separated digestate and digested liquid fraction. Bioresource Technology, 102(22), 10248–10251. https://doi.org/https://doi.org/10.1016/j.biortech.2011.08.076
- Glowacka, A., Szostak, B., & Klebaniuk, R. (2020). Effect of Biogas Digestate and Mineral Fertilisation on the Soil Properties and Yield and Nutritional Value of Switchgrass Forage. Agronomy, 10(4), 490.
- Goberna, M., Podmirseg, S. M., Waldhuber, S., Knapp, B. A., García, C., & Insam, H. (2011). Pathogenic bacteria and mineral N in soils following the land spreading of biogas digestates and fresh manure. Applied Soil Ecology, 49, 18–25. https://doi.org/https://doi.org/10.1016/j.apsoil.2011.07.007
- Gonzalez-Gil, G., Thomas, L., Emwas, A. H., Lens, P. N., & Saikaly, P. E. (2015). NMR and MALDI-TOF MS based characterization of exopolysaccharides in anaerobic microbial aggregates from full-scale reactors. Scientific Reports, 5, 14316. https://doi.org/https://doi.org/10.1038/srep14316
- Gu, L., Zhu, N., Guo, H., Huang, S., Lou, Z., & Yuan, H. (2013). Adsorption and Fenton-like degradation of naphthalene dye intermediate on sewage sludge derived porous carbon. Journal of Hazardous Materials, 246, 145–153. https://doi.org/https://doi.org/10.1016/j.jhazmat.2012.12.012
- Gu, Y., Chen, X., Liu, Z., Zhou, X., & Zhang, Y. (2014). Effect of inoculum sources on the anaerobic digestion of rice straw. Bioresource Technology, 158, 149–155. https://doi.org/https://doi.org/10.1016/j.biortech.2014.02.011
- Hadi, P., Xu, M., Ning, C., Sze Ki Lin, C., & McKay, G. (2015). A critical review on preparation, characterization and utilization of sludge-derived activated carbons for wastewater treatment. Chemical Engineering Journal, 260, 895–906. https://doi.org/https://doi.org/10.1016/j.cej.2014.08.088
- Hajar, H. A. A., Riefler, R. G., & Stuart, B. J. (2016). Anaerobic digestate as a nutrient medium for the growth of the green microalga Neochloris oleoabundans. Environmental Engineering Research, 21(3), 265–275. https://doi.org/https://doi.org/10.4491/eer.2016.005
- Haraldsen, T. K., Andersen, U., Krogstad, T., & Sorheim, R. (2011). Liquid digestate from anaerobic treatment of source-separated household waste as fertilizer to barley. Waste Management & Research, 29(12), 1271–1276. https://doi.org/https://doi.org/10.1177/0734242X11411975
- He, C., Giannis, A., & Wang, J.-Y. (2013). Conversion of sewage sludge to clean solid fuel using hydrothermal carbonization: Hydrochar fuel characteristics and combustion behavior. Applied Energy, 111, 257–266. https://doi.org/https://doi.org/10.1016/j.apenergy.2013.04.084
- Hewage, S., & Priyadarshani, R. (2016). Effect of charred digestate (biochar) and digestate on soil organic carbon and nutrients in temperate bioenergy crop production systems. Universität Hamburg Hamburg.
- Hidalgo, D., Corona, F., Martín-Marroquín, J. M., del Álamo, J., & Aguado, A. (2016). Resource recovery from anaerobic digestate: Struvite crystallisation versus ammonia stripping. Desalination and Water Treatment, 57(6), 2626–2632. https://doi.org/https://doi.org/10.1080/19443994.2014.1001794
- Hogendoorn, A. (2013). Enhanced digestion and alginate-likeexopolysaccharides extraction from Nereda sludge [Masters thesis].
- Hou, D., Lu, L., & Ren, Z. J. (2016). Microbial fuel cells and osmotic membrane bioreactors have mutual benefits for wastewater treatment and energy production. Water Research, 98, 183–189. https://doi.org/https://doi.org/10.1016/j.watres.2016.04.017
- Hu, B., Zhou, W., Min, M., Du, Z., Chen, P., Ma, X., Liu, Y., Lei, H., Shi, J., & Ruan, R. (2013). Development of an effective acidogenically digested swine manure-based algal system for improved wastewater treatment and biofuel and feed production. Applied Energy, 107, 255–263. https://doi.org/https://doi.org/10.1016/j.apenergy.2013.02.033
- Hung, C. Y., Tsai, W. T., Chen, J. W., Lin, Y. Q., & Chang, Y. M. (2017). Characterization of biochar prepared from biogas digestate. Waste Management, 66, 53–60. https://doi.org/https://doi.org/10.1016/j.wasman.2017.04.034
- Inyang, M., Gao, B., Pullammanappallil, P., Ding, W., & Zimmerman, A. R. (2010). Biochar from anaerobically digested sugarcane bagasse. Bioresource Technology, 101(22), 8868–8872. https://doi.org/https://doi.org/10.1016/j.biortech.2010.06.088
- Inyang, M., Gao, B., Yao, Y., Xue, Y., Zimmerman, A. R., Pullammanappallil, P., & Cao, X. (2012). Removal of heavy metals from aqueous solution by biochars derived from anaerobically digested biomass. Bioresource Technology, 110, 50–56. https://doi.org/https://doi.org/10.1016/j.biortech.2012.01.072
- Jain, S., Newman, D., Ange, N., Harmen, D., Pharoah, L. F., Hannah, R., Frederic, G., Charlotte, M., & Rebecca, T. (2019). Global potential of biogas, pp. 1–56. World Biogas Association. worldbiogasassociation.org
- Ji, F., Zhou, Y., Pang, A., Ning, L., Rodgers, K., Liu, Y., & Dong, R. (2015). Fed-batch cultivation of Desmodesmus sp. in anaerobic digestion wastewater for improved nutrient removal and biodiesel production. Bioresource Technology, 184, 116–122. https://doi.org/https://doi.org/10.1016/j.biortech.2014.09.144
- Jiang, Y., Pu, X., Zheng, D., Zhu, T., Wang, S., Deng, L., & Wang, W. (2018). Cultivation of lipid-producing microalgae in struvite-precipitated liquid digestate for biodiesel production. Biotechnology for Biofuels, 11, 101. https://doi.org/https://doi.org/10.1186/s13068-018-1102-3
- Jin, H., Sun, E., Xu, Y., Guo, R., Zheng, M., Huang, H., & Zhang, S. (2018). Hydrochar derived from anaerobic solid digestates of swine manure and rice straw: A potential recyclable material. BioResources, 13, 1019–1034. https://doi.org/https://doi.org/10.15376/biores.13.1.1019-1034
- Johnson, K., Kleerebezem, R., & van Loosdrecht, M. C. (2010). Influence of ammonium on the accumulation of polyhydroxybutyrate (PHB) in aerobic open mixed cultures. Journal of Biotechnology, 147(2), 73–79. https://doi.org/https://doi.org/10.1016/j.jbiotec.2010.02.003
- Jothi, G., Pugalendhi, S., Poornima, K., & Rajendran, G. (2003). Management of root-knot nematode in tomato Lycopersicon esculentum, Mill., with biogas slurry. Bioresource Technology, 89(2), 169–170. https://doi.org/https://doi.org/10.1016/s0960-8524(03)00047-6
- Ju, F., Li, B., Ma, L., Wang, Y., Huang, D., & Zhang, T. (2016). Antibiotic resistance genes and human bacterial pathogens: Co-occurrence, removal, and enrichment in municipal sewage sludge digesters. Water Research, 91, 1–10. https://doi.org/https://doi.org/10.1016/j.watres.2015.11.071
- Kalaiselvi, P. (2020). Effect of spentwash application on potassium dynamics in soil. International Journal of Ecology and Environmental Sciences, 46(1), 19–24.
- Kalaiselvi, P., & Mahimairaja, S. (2019). Dynamics of different fractions of phosphorus in soil applied with Spentwash. Pollution Research, 38 (1), 232– 241.
- Kalyuzhnyi, S., Gladchenko, M., Mulder, A., & Versprille, B. (2006). DEAMOX – New biological nitrogen removal process based on anaerobic ammonia oxidation coupled to sulphide-driven conversion of nitrate into nitrite. Water Research, 40(19), 3637–3645. https://doi.org/https://doi.org/10.1016/j.watres.2006.06.010
- Karunanithi, R., Szogi, A. A., Bolan, N., Naidu, R., Loganathan, P., Hunt, P. G., Vanotti, M. B., Saint, C. P., Ok, Y. S., & Krishnamoorthy, S. (2015). Phosphorus recovery and reuse from waste streams. Advances in Agronomy, 131, 173–250. https://doi.org/https://doi.org/10.1016/bs.agron.2014.12.005
- Kataki, S., West, H., Clarke, M., & Baruah, D. C. (2016). Phosphorus recovery as struvite: Recent concerns for use of seed, alternative Mg source, nitrogen conservation and fertilizer potential. Resources, Conservation and Recycling, 107, 142–156. https://doi.org/https://doi.org/10.1016/j.resconrec.2015.12.009
- Katehis, D., Murthy, S., Wett, B., Locke, E., & Bailey, W. (2006). Nutrient removal from anaerobic digester side-stream at the blue plains AWTP. Proceedings of the Water Environment Federation, 2006(7), 5215–5226. https://doi.org/https://doi.org/10.2175/193864706783763219
- Khanh, N., Kitaya, Y., Xiao, L., Endo, R., & Shibuya, T. (2013). Selection of microalgae suitable for culturing with digestate from methane fermentation. Environmental Technology, 34(13–16), 2039–2045. https://doi.org/https://doi.org/10.1080/09593330.2013.828093
- Kim, D., Lee, K., & Park, K. Y. (2014). Hydrothermal carbonization of anaerobically digested sludge for solid fuel production and energy recovery. Fuel, 130, 120–125. https://doi.org/https://doi.org/10.1016/j.fuel.2014.04.030
- Kim, S., Lee, D. W., & Cho, J. (2016). Application of direct contact membrane distillation process to treat anaerobic digestate. Journal of Membrane Science, 511, 20–28. https://doi.org/https://doi.org/10.1016/j.memsci.2016.03.038
- Kleerebezem, R., & van Loosdrecht, M. C. (2007). Mixed culture biotechnology for bioenergy production. Current Opinion in Biotechnology, 18(3), 207–212. https://doi.org/https://doi.org/10.1016/j.copbio.2007.05.001
- Kobayashi, N., Noel, E. A., Barnes, A., Watson, A., Rosenberg, J. N., Erickson, G., & Oyler, G. A. (2013). Characterization of three Chlorella sorokiniana strains in anaerobic digested effluent from cattle manure. Bioresource Technology, 150, 377–386. https://doi.org/https://doi.org/10.1016/j.biortech.2013.10.032
- Koch, F., Mavinic, S., Yonemitsu, N., & Britton, A. (2009). Fluidized bed wastewater treatment: US Patent US7,622,047.
- Koszel, M., & Lorencowicz, E. (2015). Agricultural use of biogas digestate as a replacement fertilizers. Agriculture and Agricultural Science Procedia, 7, 119–124. https://doi.org/https://doi.org/10.1016/j.aaspro.2015.12.004
- Koutra, E., Grammatikopoulos, G., & Kornaros, M. (2017). Microalgal post-treatment of anaerobically digested agro-industrial wastes for nutrient removal and lipids production. Bioresource Technology, 224, 473–480. https://doi.org/https://doi.org/10.1016/j.biortech.2016.11.022
- Kruse, A., Kirchherr, M., Gaag, S., & Zevaco, T. A. (2015). Hydrothermale Karbonisierung. 4. Thermische Eigenschaften der Produkte. Chemie Ingenieur Technik, 87(12), 1707–1712. https://doi.org/https://doi.org/10.1002/cite.201500039
- Kupper, T., Brändli, R. C., Bucheli, T. D., Stämpfli, C., Zennegg, M., Berger, U., Müller, J. (2006). Organic pollutants in compost and digestate: Occurrence, fate and impacts. Proceedings: International Conference ORBIT (p. 1).
- Kuusik, A., Loigu, E., Sokk, O., & Kuusik, A. (2012). Enhancement of methane productivity of anaerobic reactors of wastewater treatment plants. World Academy of Science, Engineering and Technology, 29–30. https://doi.org/https://doi.org/10.5281/zenodo.1072355
- Kuusik, A., Pachel, K., Kuusik, A., & Loigu, E. (2017). Possible agricultural use of digestate. Proceedings of the Estonian Academy of Sciences, 66(1), 64. https://doi.org/https://doi.org/10.3176/proc.2017.1.10
- Lai, L., Xie, Q., Chi, L., Gu, W., & Wu, D. (2016). Adsorption of phosphate from water by easily separable Fe3O4@SiO2 core/shell magnetic nanoparticles functionalized with hydrous lanthanum oxide. Journal of Colloid and Interface Science, 465, 76–82. https://doi.org/https://doi.org/10.1016/j.jcis.2015.11.043
- Lakaniemi, A.-M., Tuovinen, O. H., & Puhakka, J. A. (2013). Anaerobic conversion of microalgal biomass to sustainable energy carriers - A review. Bioresource Technology, 135, 222–231. https://doi.org/https://doi.org/10.1016/j.biortech.2012.08.096
- Levine, R. B., Bollas, A., & Savage, P. E. (2013). Process improvements for the supercritical in situ transesterification of carbonized algal biomass. Bioresource Technology, 136, 556–564. https://doi.org/https://doi.org/10.1016/j.biortech.2013.03.022 https://doi.org/https://doi.org/10.1016/j.biortech.2013.03.022
- Levine, R. B., Costanza-Robinson, M. S., & Spatafora, G. A. (2011). Neochloris oleoabundans grown on anaerobically digested dairy manure for concomitant nutrient removal and biodiesel feedstock production. Biomass and Bioenergy, 35(1), 40–49. https://doi.org/https://doi.org/10.1016/j.biombioe.2010.08.035
- Li, J., Shen, F., Yang, G., Zhang, Y., Deng, S., Zhang, J., Zeng, Y., Luo, T., & Mei, Z. (2018). Valorizing rice straw and its anaerobically digested residues for biochar to remove Pb (II) from aqueous solution. International Journal of Polymer Science, 2018, 1–11. https://doi.org/https://doi.org/10.1155/2018/2684962
- Li, Y., Ghasemi Naghdi, F., Garg, S., Adarme-Vega, T. C., Thurecht, K. J., Ghafor, W. A., Tannock, S., & Schenk, P. M. (2014). A comparative study: The impact of different lipid extraction methods on current microalgal lipid research. Microbial Cell Factories, 13(1), 14. https://doi.org/https://doi.org/10.1186/1475-2859-13-14
- Li, Y., Zhang, R., Liu, X., Chen, C., Xiao, X., Feng, L., He, Y., & Liu, G. (2013). Evaluating methane production from anaerobic mono- and co-digestion of kitchen waste, corn stover, and chicken manure. Energy & Fuels, 27, 2085–2091. https://doi.org/https://doi.org/10.1021/ef400117f
- Lin, H., Gan, J., Rajendran, A., Reis, C. E. R., & Hu, B. (2015). Phosphorus removal and recovery from digestate after biogas production biofuels – Status and perspective. https://doi.org/https://doi.org/10.5772/60474
- Lipman, T., Shah, N. (2007). UC Berkeley: UC Berkeley Transportation Sustainability Research Center. http://escholarshiporg/uc/item/7z69v4wp.
- Litamen, S., Kirchmeyr, F. (2014). The use of digestate as an organic fertilizer. www.envirotech-online.com
- Liu, Z., Liao, W., & Liu, Y. (2016). A sustainable biorefinery to convert agricultural residues into value-added chemicals. Biotechnology for Biofuels, 9, 197. https://doi.org/https://doi.org/10.1186/s13068-016-0609-8
- Logan, M., & Visvanathan, C. (2019). Management strategies for anaerobic digestate of organic fraction of municipal solid waste: Current status and future prospects. Waste Management & Research, 37(1_suppl), 27–39. https://doi.org/https://doi.org/10.1177/0734242X18816793
- Lorenzon, G. (2017). Brewery's residual streams exploitation through anaerobic digestion and nanocellulose production.
- Lukehurst, C. T., Frost, P., & Al Seadi, T. (2010). Utilisation of digestate from biogas plants as biofertiliser. IEA Bioenergy, 2010, 1–36.
- MacLellan, J., Chen, R., Kraemer, R., Zhong, Y., Liu, Y., & Liao, W. (2013). Anaerobic treatment of lignocellulosic material to co-produce methane and digested fiber for ethanol biorefining. Bioresource Technology, 130, 418–423. https://doi.org/https://doi.org/10.1016/j.biortech.2012.12.032
- Macura, B., Johannesdottir, S. L., Piniewski, M., Haddaway, N. R., & Kvarnström, E. (2019). Effectiveness of ecotechnologies for recovery of nitrogen and phosphorus from anaerobic digestate and effectiveness of the products as fertilizers: A systematic review protocol. (2019). Environmental Evidence, 8(1), 29. https://doi.org/https://doi.org/10.1186/s13750-019-0173-3
- Magri, A., Beline, F., & Dabert, P. (2013). Feasibility and interest of the anammox process as treatment alternative for anaerobic digester supernatants in manure processing - An overview. Journal of Environmental Management, 131, 170–184. https://doi.org/https://doi.org/10.1016/j.jenvman.2013.09.021
- Mahto, A., Gupta, R., Ghara, K. K., Srivastava, D. N., Maiti, P., D, K., Rivera, P.-Z., Meena, R., & Nataraj, S. K. (2017). Development of high-performance supercapacitor electrode derived from sugar industry spent wash waste. Journal of Hazardous Materials, 340, 189–201. https://doi.org/https://doi.org/10.1016/j.jhazmat.2017.06.048
- Makádi, M., Szegi, T., Tomócsik, A., Orosz, V., Michéli, E., Ferenczy, A., Posta, K., & Biró, B. (2016). Impact of digestate application on chemical and microbiological properties of two different textured soils. Communications in Soil Science and Plant Analysis, 47(2), 167–178. https://doi.org/https://doi.org/10.1080/00103624.2015.1109652
- Makádi, M., Tomócsik, A., & Orosz, V. (2012). Digestate: A new nutrient source. Review. In Biogas (pp. 295–310). InTechOpen. https://doi.org/https://doi.org/10.5772/31355
- Marazzi, F., Sambusiti, C., Monlau, F., Cecere, S. E., Scaglione, D., Barakat, A., Mezzanotte, V., & Ficara, E. (2017). A novel option for reducing the optical density of liquid digestate to achieve a more productive microalgal culturing. Algal Research, 24, 19–28. https://doi.org/https://doi.org/10.1016/j.algal.2017.03.014
- Markou, G., & Georgakakis, D. (2011). Cultivation of filamentous cyanobacteria (blue-green algae) in agro-industrial wastes and wastewaters: A review. Applied Energy, 88(10), 3389–3401. https://doi.org/https://doi.org/10.1016/j.apenergy.2010.12.042
- Marques, R. R. N., Stüber, F., Smith, K. M., Fabregat, A., Bengoa, C., Font, J., Fortuny, A., Pullket, S., Fowler, G. D., & Graham, N. J. D. (2011). Sewage sludge based catalysts for catalytic wet air oxidation of phenol: Preparation, characterisation and catalytic performance. Applied Catalysis B: Environmental, 101(3–4), 306–316. https://doi.org/https://doi.org/10.1016/j.apcatb.2010.09.033
- Masciandaro, G., & Ceccanti, B. (1999). Assessing soil quality in different agro-ecosystems through biochemical and chemico-structural properties of humic substances. Soil and Tillage Research, 51(1–2), 129–137. https://doi.org/https://doi.org/10.1016/S0167-1987(99)00056-2
- Massa, M., Buono, S., Langellotti, A. L., Castaldo, L., Martello, A., Paduano, A., Sacchi, R., & Fogliano, V. (2017). Evaluation of anaerobic digestates from different feedstocks as growth media for Tetradesmus obliquus, Botryococcus braunii, Phaeodactylum tricornutum and Arthrospira maxima. New Biotechnology, 36, 8–16. https://doi.org/https://doi.org/10.1016/j.nbt.2016.12.007
- McDonald, N., & Kessler, A. M. (2016). ABC digestate standard testing and certification program. Biocycle, 57 (8), 31.
- Mehta, C. M., Khunjar, W. O., Nguyen, V., Tait, S., & Batstone, D. J. (2015). Technologies to recover nutrients from waste streams: A critical review. Critical Reviews in Environmental Science and Technology, 45(4), 385–427. https://doi.org/https://doi.org/10.1080/10643389.2013.866621
- Meijas, L., Cerda, A., Barrena, R., Gea, T., & Sánchez, A. (2018). Microbial strategies for cellulase and xylanase production through solid-state fermentation of digestate from biowaste. Sustainability, 10(7), 2433.
- Menardo, S., Balsari, P., Dinuccio, E., & Gioelli, F. (2011). Thermal pre-treatment of solid fraction from mechanically-separated raw and digested slurry to increase methane yield. Bioresource Technology, 102(2), 2026–2032. https://doi.org/https://doi.org/10.1016/j.biortech.2010.09.067
- Miran, W., Nawaz, M., Jang, J., & Lee, D. S. (2016). Conversion of orange peel waste biomass to bioelectricity using a mediator-less microbial fuel cell. The Science of the Total Environment, 547, 197–205. https://doi.org/https://doi.org/10.1016/j.scitotenv.2016.01.004
- Mirmohamadsadeghi, S., & Karimi, K. (2018). Energy recovery together with amorphous nanosilica production from rice straw via dry anaerobic digestion. BioResources, 13(1), 1872–1884. https://doi.org/https://doi.org/10.15376/biores.13.1.1872-1884
- Mohana, S., Shah, A., Divecha, J., & Madamwar, D. (2008). Xylanase production by Burkholderia sp. DMAX strain under solid state fermentation using distillery spent wash. Bioresource Technology, 99(16), 7553–7564. https://doi.org/https://doi.org/10.1016/j.biortech.2008.02.009
- Møller, H. B., Sommer, S. G., & Ahring, B. K. (2002). Separation efficiency and particle size distribution in relation to manure type and storage conditions. Bioresource Technology, 85(2), 189–196. https://doi.org/https://doi.org/10.1016/S0960-8524(02)00047-0
- Möller, K. (2015). Effects of anaerobic digestion on soil carbon and nitrogen turnover, N emissions, and soil biological activity. A review. Agronomy for Sustainable Development, 35(3), 1021–1041. https://doi.org/https://doi.org/10.1007/s13593-015-0284-3
- Möller, K., & Müller, T. (2012). Effects of anaerobic digestion on digestate nutrient availability and crop growth: A review. Engineering in Life Sciences, 12(3), 242–257. https://doi.org/https://doi.org/10.1002/elsc.201100085
- Möller, K., Stinner, W., Deuker, A., & Leithold, G. (2008). Effects of different manuring systems with and without biogas digestion on nitrogen cycle and crop yield in mixed organic dairy farming systems. Nutrient Cycling in Agroecosystems, 82(3), 209–232. https://doi.org/https://doi.org/10.1016/j.eja.2008.06.003 https://doi.org/https://doi.org/10.1007/s10705-008-9196-9
- Monfet, E., Aubry, G., & Ramirez, A. A. (2018). Nutrient removal and recovery from digestate: A review of the technology. Biofuels, 9(2), 247–262. https://doi.org/https://doi.org/10.1080/17597269.2017.1336348
- Monlau, F., Francavilla, M., Sambusiti, C., Antoniou, N., Solhy, A., Libutti, A., Zabaniotou, A., Barakat, A., & Monteleone, M. (2016). Toward a functional integration of anaerobic digestion and pyrolysis for a sustainable resource management. Comparison between solid-digestate and its derived pyrochar as soil amendment. Applied Energy, 169, 652–662. https://doi.org/https://doi.org/10.1016/j.apenergy.2016.02.084
- Monlau, F., Sambusiti, C., Antoniou, N., Zabaniotou, A., Solhy, A., & Barakat, A. (2015). Pyrochars from bioenergy residue as novel bio-adsorbents for lignocellulosic hydrolysate detoxification. Bioresource Technology, 187, 379–386. https://doi.org/https://doi.org/10.1016/j.biortech.2015.03.137
- Monlau, F., Sambusiti, C., Ficara, E., Aboulkas, A., Barakat, A., & Carrere, H. (2015). New opportunities for agricultural digestate valorization: Current situation and perspectives. Energy & Environmental Science, 8(9), 2600–2621. https://doi.org/https://doi.org/10.1039/C5EE01633A
- Montemurro, F., Ferri, D., Tittarelli, F., Canali, S., & Vitti, C. (2010). Anaerobic digestate and on-farm compost application: Effects on lettuce (Lactuca sativa L.) crop production and soil properties. Compost Science & Utilization, 18, 184–193. https://doi.org/https://doi.org/10.1080/1065657X.2010.10736954
- Moralejo-Garate, H., Kleerebezem, R., Mosquera-Corral, A., Campos, J. L., Palmeiro-Sanchez, T., & Van Loosdrecht, M. C. (2014). Substrate versatility of polyhydroxyalkanoate producing glycerol grown bacterial enrichment culture. Water Research, 66, 190–198. https://doi.org/https://doi.org/10.1016/j.watres.2014.07.044
- Morgan-Sagastume, F., Valentino, F., Hjort, M., Cirne, D., Karabegovic, L., Gerardin, F., Johansson, P., Karlsson, A., Magnusson, P., Alexandersson, T., Bengtsson, S., Majone, M., & Werker, A. (2014). Polyhydroxyalkanoate (PHA) production from sludge and municipal wastewater treatment. Water Science and Technology, 69(1), 177–184. https://doi.org/https://doi.org/10.2166/wst.2013.643
- Motte, J. C., Watteau, F., Escudié, R., Steyer, J. P., Bernet, N., Delgenes, J. P., & Dumas, C. (2015). Dynamic observation of the biodegradation of lignocellulosic tissue under solid-state anaerobic conditions. Bioresource Technology, 191, 322–326. https://doi.org/https://doi.org/10.1016/j.biortech.2015.04.130
- Muanruksa, P., & Kaewkannetra, P. (2020). Combination of fatty acids extraction and enzymatic esterification for biodiesel production using sludge palm oil as a low-cost substrate. Renewable Energy., 146, 901–906. https://doi.org/https://doi.org/10.1016/j.renene.2019.07.027
- Muanruksa, P., Winterburn, J., & Kaewkannetra, P. (2019). A novel process for biodiesel production from sludge palm oil. MethodsX, 6, 2838–2844. https://doi.org/https://doi.org/10.1016/j.mex.2019.09.039
- Mukherjee, C., Chowdhury, R., & Ray, K. (2015). Phosphorus recycling from an unexplored source by polyphosphate accumulating microalgae and cyanobacteria - A step to phosphorus security in agriculture. Frontiers in Microbiology, 6, 1421. https://doi.org/https://doi.org/10.3389/fmicb.2015.01421
- Mukhuba, M., Roopnarain, A., Adeleke, R., Moeletsi, M., Makofane, R., & Tejada Moral, M. (2018). Comparative assessment of bio-fertiliser quality of cow dung and anaerobic digestion effluent. Cogent Food & Agriculture, 4(1), 1435019. https://doi.org/https://doi.org/10.1080/23311932.2018 https://doi.org/https://doi.org/10.1080/23311932.2018.1435019
- Mulder, J. W., van Loosdrecht, M. C. M., Hellinga, C., & van Kempen, R. (2001). Full-scale application of the SHARON process for treatment of rejection water of digested sludge dewatering. Water Science and Technology, 43(11), 127–134. https://doi.org/https://doi.org/10.2166/wst.2001.0035 https://doi.org/https://doi.org/10.2166/wst.2001.0675
- Mumme, J., Eckervogt, L., Pielert, J., Diakité, M., Rupp, F., & Kern, J. (2011). Hydrothermal carbonization of anaerobically digested maize silage. Bioresource Technology, 102(19), 9255–9260. https://doi.org/https://doi.org/10.1016/j.biortech.2011.06.099
- Mumme, J., Titirici, M.-M., Pfeiffer, A., Lüder, U., Reza, M. T., & Mašek, O. (2015). Hydrothermal carbonization of digestate in the presence of zeolite: Process efficiency and composite properties. ACS Sustainable Chemistry & Engineering, 3, 2967–2974. https://doi.org/https://doi.org/10.1021/acssuschemeng.5b00943
- Murugaragavan, R., & Mahimairaja, S. (2009). Characterization of distillery spentwash for its valuable nutrient substitute to dryland agriculture. Journal of Ecobiology, 24(2), 169–174.
- Musatti, A., Ficara, E., Mapelli, C., Sambusiti, C., & Rollini, M. (2017). Use of solid digestate for lignocellulolytic enzymes production through submerged fungal fermentation. Journal of Environmental Management, 199, 1–6. https://doi.org/https://doi.org/10.1016/j.jenvman.2017.05.022
- Nawa, Y., & Matsushita, T. (2009). P-recovery in Japan–The PHOSNIX process Conference Baltic.
- Neoh, C. H., Noor, Z. Z., Mutamim, N. S. A., & Lim, C. K. (2016). Green technology in wastewater treatment technologies: Integration of membrane bioreactor with various wastewater treatment systems. Chemical Engineering Journal, 283, 582–594. https://doi.org/https://doi.org/10.1016/j.cej.2015.07.060
- Neuhaus, J., Shehata, A. A., & Krüger, M. (2015). Detection of pathogenic clostridia in biogas plant wastes. Folia Microbiologica, 60(1), 15–19. https://doi.org/https://doi.org/10.1007/s12223-014-0334-2
- Neumann, J., Binder, S., Apfelbacher, A., Gasson, J. R., García, P. R., & Hornung, A. (2015). Production and characterization of a new quality pyrolysis oil, char and syngas from digestate–Introducing the thermo-catalytic reforming process. Journal of Analytical and Applied Pyrolysis, 113, 137–142. https://doi.org/https://doi.org/10.1016/j.jaap.2014.11.022
- Nkoa, R. (2014). Agricultural benefits and environmental risks of soil fertilization with anaerobic digestates: A review. Agronomy for Sustainable Development, 34(2), 473–492. https://doi.org/https://doi.org/10.1007/s13593-013-0196-z
- Nkoa, R., Coulombe, J., Desjardins, Y., & Tremblay, N. (2001). Towards optimization of growth via nutrient supply phasing: Nitrogen supply phasing increases broccoli (Brassica oleracea var. italica) growth and yield. Journal of Experimental Botany, 52(357), 821–827. https://doi.org/https://doi.org/10.1093/jexbot/52.357.821
- Nyord, T., Søgaard, H. T., Hansen, M. N., & Jensen, L. S. (2008). Injection methods to reduce ammonia emission from volatile liquid fertilisers applied to growing crops. Biosystems Engineering, 100(2), 235–244. https://doi.org/https://doi.org/10.1016/j.biosystemseng.2008.01.013
- Odlare, M., Pell, M., & Svensson, K. (2008). Changes in soil chemical and microbiological properties during 4 years of application of various organic residues. Waste Management (New York, N.Y.), 28(7), 1246–1253. https://doi.org/https://doi.org/10.1016/j.wasman.2007.06.005
- Ohdoi, K., Miyahara, S., Iwashita, K., Umeda, M., Shimizu, H., Nakashima, H., & Miyasaka, J. (2013). Optimization of fertilizer application schedule: Utilization of digestate after anaerobic digestion as liquid fertilizer. IFAC Proceedings Volumes, 46(4), 317–322. https://doi.org/https://doi.org/10.3182/20130327-3-JP-3017.00072
- Okano, K., Yamamoto, Y., Takano, H., Aketo, T., Honda, K., & Ohtake, H. (2016). A simple technology for phosphorus recovery using acid-treated concrete sludge. Separation and Purification Technology, 165, 173–178. https://doi.org/https://doi.org/10.1016/j.seppur.2016.03.054
- Oliveira, I., Blöhse, D., & Ramke, H.-G. (2013). Hydrothermal carbonization of agricultural residues. Bioresource Technology, 142, 138–146. https://doi.org/https://doi.org/10.1016/j.biortech.2013.04.125
- Orr, M. (2011). Digestate use and management. Natural Organic Fertiliser Company (NOFCO).
- Oumabady, S., Paul Sebastian, S., Kamaludeen, S. P., Ramasamy, M., Kalaiselvi, P., & Parameswari, E. (2020). Preparation and characterization of optimized Hydrochar from paper Board Mill Sludge. Scientific Reports, 10(1), 1–12. https://doi.org/https://doi.org/10.1038/s41598-019-57163-7
- Pan, Z., Qi, G., Andriamanohiarisoamanana, F. J., Yamashiro, T., Iwasaki, M., Nishida, T., Tangtaweewipat, S., & Umetsu, K. (2018). Potential of anaerobic digestate of dairy manure in suppressing soil-borne plant disease . Animal Science Journal = Nihon Chikusan Gakkaiho, 89(10), 1512–1518. https://doi.org/https://doi.org/10.1111/asj.13092
- Pant, D., Van Bogaert, G., Diels, L., & Vanbroekhoven, K. (2010). A review of the substrates used in microbial fuel cells (MFCs) for sustainable energy production. Bioresource Technology, 101(6), 1533–1543. https://doi.org/https://doi.org/10.1016/j.biortech.2009.10.017
- Park, J., Jin, H.-F., Lim, B.-R., Park, K.-Y., & Lee, K. (2010). Ammonia removal from anaerobic digestion effluent of livestock waste using green alga Scenedesmus sp. Bioresource Technology, 101(22), 8649–8657. https://doi.org/https://doi.org/10.1016/j.biortech.2010.06.142
- Parmar, K. R., & Ross, A. B. (2019). Integration of hydrothermal carbonisation with anaerobic digestion; Opportunities for valorisation of digestate. Energies, 12(9), 1586. https://doi.org/https://doi.org/10.3390/en12091586
- Passanha, P., Esteves, S. R., Kedia, G., Dinsdale, R. M., & Guwy, A. J. (2013). Increasing polyhydroxyalkanoate (PHA) yields from Cupriavidus necator by using filtered digestate liquors. Bioresource Technology, 147, 345–352. https://doi.org/https://doi.org/10.1016/j.biortech.2013.08.050
- Patel, S. K., Singh, M., & Kalia, V. C. (2011). Hydrogen and polyhydroxybutyrate producing abilities of Bacillus spp. from glucose in two stage system. Indian Journal of Microbiology, 51(4), 418–423. https://doi.org/https://doi.org/10.1007/s12088-011-06-9 https://doi.org/https://doi.org/10.1007/s12088-011-0236-9
- Peccia, J., Haznedaroglu, B., Gutierrez, J., & Zimmerman, J. B. (2013). Nitrogen supply is an important driver of sustainable microalgae biofuel production. Trends in Biotechnology, 31(3), 134–138. https://doi.org/https://doi.org/10.1016/j.tibtech.2013.01.010
- Peng, W., & Pivato, A. (2019). Sustainable management of digestate from the organic fraction of municipal solid waste and food waste under the concepts of back to earth alternatives and circular economy. Waste and Biomass Valorization, 10(2), 465–481. https://doi.org/https://doi.org/10.1007/s12649-017-0071-2
- Peng, X., Nges, I. A., & Liu, J. (2016). Improving methane production from wheat straw by digestate liquor recirculation in continuous stirred tank processes. Renewable Energy., 85, 12–18. https://doi.org/https://doi.org/10.1016/j.renene.2015.06.023
- Petersson, A. (2008). English summary of SPCR 120—Certification rules for digestate from biowaste by the quality assurance system of Swedish Waste Management. Swedish Gas Centre. http://www.fao.org/fileadmin/user_upload/nr/sustainability_pathways/docs/Certification%20rules%20for%20digestate%20from%20biowaste.pdf
- Pittmann, T., & Steinmetz, H. (2017). Polyhydroxyalkanoate production on waste water treatment plants: Process scheme, operating conditions and potential analysis for German and European municipal waste water treatment plants. Bioengineering, 4(4), 54. https://doi.org/https://doi.org/10.3390/bioengineering4020054
- Poletti, A., Poletti, L., Santini, S., & Poletti, R. (2012). Renewable energy from ammoniumrich anaerobic wastewaters and liquid sludges. Virt&L-Comm, 2, L-COMM.
- Pontus, K. (2014). Digestate and its utilisation methods IV Balt. Biogas Forum, 122–131.
- Prajapati, S. K., Kumar, P., Malik, A., & Vijay, V. K. (2014). Bioconversion of algae to methane and subsequent utilization of digestate for algae cultivation: A closed loop bioenergy generation process. Bioresource Technology, 158, 174–180. https://doi.org/https://doi.org/10.1016/j.biortech.2014.02.023
- Prask, H., Szlachta, J., Fugol, M., Kordas, L., Lejman, A., Tużnik, F., & Tużnik, F. (2018). Sustainability biogas production from ensiled plants consisting of the transformation of the digestate into a valuable organic-mineral granular fertilizer. Sustainability, 10 (3), 585. https://doi.org/https://doi.org/10.3390/su10030585
- Provenzano, M. R., Iannuzzi, G., Fabbri, C., & Senesi, N. (2011). Qualitative characterization and differentiation of digestates from different biowastes using FTIR and fluorescence spectroscopies. Journal of Environmental Protection, 2(1), 83–89. https://doi.org/https://doi.org/10.4236/jep.2011.21009
- Puccini, M., Ceccarini, L., Antichi, D., Seggiani, M., Tavarini, S., Hernandez Latorre, M., & Vitolo, S. (2018). Hydrothermal carbonization of municipal woody and herbaceous prunings: Hydrochar valorisation as soil amendment and growth medium for horticulture. Sustainability, 10(3), 846. https://doi.org/https://doi.org/10.3390/su10030846
- Puyol, D., Batstone, D. J., Hülsen, T., Astals, S., Peces, M., & Krömer, J. O. (2017). Resource recovery from wastewater by biological technologies: Opportunities, challenges, and prospects. Frontiers in Microbiology, 7, 2106. https://doi.org/https://doi.org/10.3389/fmicb.2016.02106
- Qiu, G., Law, Y. M., Das, S., & Ting, Y. P. (2015). Direct and complete phosphorus recovery from municipal wastewater using a hybrid microfiltration-forward osmosis membrane bioreactor process with seawater brine as draw solution. Environmental Science & Technology, 49(10), 6156–6163. https://doi.org/https://doi.org/10.1021/es504554f
- Radawiec, W., Dubicki, M., Karwowska, A., Żelazna, K., & Gołaszewski, J. (2014). Biochar from a digestate as an energy product and soil improver. Agricultural Engineering, 3, 149–156. https://doi.org/https://doi.org/10.14654/ir.2014.151.067
- Risberg, K., Cederlund, H., Pell, M., Arthurson, V., & Schnurer, A. (2017). Comparative characterization of digestate versus pig slurry and cow manure - Chemical composition and effects on soil microbial activity. Waste Management (New York, N.Y.), 61, 529–538. https://doi.org/https://doi.org/10.1016/j.wasman.2016.12.016
- Rittmann, B. E., Mayer, B., Westerhoff, P., & Edwards, M. (2011). Capturing the lost phosphorus. Chemosphere, 84(6), 846–853. https://doi.org/https://doi.org/10.1016/j.chemosphere.2011.02.001
- Riva, C., Orzi, V., Carozzi, M., Acutis, M., Boccasile, G., Lonati, S., Tambone, F., D'Imporzano, G., & Adani, F. (2016). Short-term experiments in using digestate products as substitutes for mineral (N) fertilizer: Agronomic performance, odours, and ammonia emission impacts. The Science of the Total Environment, 547, 206–214. https://doi.org/https://doi.org/10.1016/j.scitotenv.2015.12.156
- Rodríguez, F. J., Schlenger, P., & García-Valverde, M. (2016). Monitoring changes in the structure and properties of humic substances following ozonation using UV–Vis, FTIR and 1H NMR techniques. Science of the Total Environment, 541, 623–637. https://doi.org/https://doi.org/10.1016/j.scitotenv.2015.09.127
- Rodríguez, P., Cerda, A., Font, X., Sánchez, A., & Artola, A. (2019). Valorisation of biowaste digestate through solid state fermentation to produce biopesticides from Bacillus thuringiensis. Waste Management, 93, 63–71. https://doi.org/https://doi.org/10.1016/j.wasman.2019.05.026
- Salsali, H., Parker, W., & Sattar, S. (2005). Influence of staged operation of mesophilic anaerobic digestion on microbial reduction. Proceedings of the Water Environment Federation, 2005(11), 4571–4586. https://doi.org/https://doi.org/10.2175/193864705783866676
- Santi, G., Proietti, S., Moscatello, S., Stefanoni, W., & Battistelli, A. (2015). Anaerobic digestion of corn silage on a commercial scale: Differential utilization of its chemical constituents and characterization of the solid digestate. Biomass and Bioenergy, 83, 17–22. https://doi.org/https://doi.org/10.1016/j.biombioe.2015.08.018
- Saveyn, H., & Eder, P. (2014). End-of-waste criteria for biodegradable waste subjected to biological treatment (compost & digestate): Technical proposals. IPTS.
- Selvakumar, R., Seethalakshmi, N., Thavamani, P., Naidu, R., & Megharaj, M. (2015). Recent advances in the synthesis of inorganic nano/microstructures using microbial biotemplates and their applications. RSC Advances, 4(94), 52156–52169. https://doi.org/https://doi.org/10.1039/C4RA07903E
- Serejo, M. L., Posadas, E., Boncz, M. A., Blanco, S. l., García-Encina, P., & Muñoz, R. l. (2015). Influence of biogas flow rate on biomass composition during the optimization of biogas upgrading in microalgal-bacterial processes. Environmental Science & Technology, 49(5), 3228–3236. https://doi.org/https://doi.org/10.1021/es5056116
- Sheets, J. P., Yang, L., Ge, X., Wang, Z., & Li, Y. (2015). Beyond land application: Emerging technologies for the treatment and reuse of anaerobically digested agricultural and food waste. Waste Management (New York, N.Y.), 44, 94–115. https://doi.org/https://doi.org/10.1016/j.wasman.2015.07.037
- Sheng, G. P., Yu, H. Q., & Li, X. Y. (2010). Extracellular polymeric substances (EPS) of microbial aggregates in biological wastewater treatment systems: A review. Biotechnology Advances, 28(6), 882–894. https://doi.org/https://doi.org/10.1016/j.biotechadv.2010.08.001
- Siciliano, A., & De Rosa, S. (2014). Recovery of ammonia in digestates of calf manure through a struvite precipitation process using unconventional reagents. Environmental Technology, 35(5–8), 841–850. https://doi.org/https://doi.org/10.1080/09593330.2013.853088
- Siebert, S., & Kehres, B. (2008). Agricultural humus management using high quality composts. Compost and digestate: Sustainability, benefits, impacts for the environment and for plant production.
- Singh, M., Reynolds, D. L., & Das, K. C. (2011). Microalgal system for treatment of effluent from poultry litter anaerobic digestion. Bioresource Technology, 102(23), 10841–10848. https://doi.org/https://doi.org/10.1016/j.biortech.2011.09.037
- Smet, E., Van Langenhove, H., & De Bo, I. (1999). The emission of volatile compounds during the aerobic and the combined anaerobic/aerobic composting of biowaste. Atmospheric Environment, 33(8), 1295–1303. https://doi.org/https://doi.org/10.1016/S1352-2310(98)00260-X
- Smith, K. M., Fowler, G. D., Pullket, S., & Graham, N. J. (2009). Sewage sludge-based adsorbents: A review of their production, properties and use in water treatment applications. Water Research, 43(10), 2569–2594. https://doi.org/https://doi.org/10.1016/j.watres.2009.02.038
- Solovchenko, A., Verschoor, A. M., Jablonowski, N. D., & Nedbal, L. (2016). Phosphorus from wastewater to crops: An alternative path involving microalgae. Biotechnology Advances, 34(5), 550–564. https://doi.org/https://doi.org/10.1016/j.biotechadv.2016.01.002
- Stefaniuk, M., & Oleszczuk, P. (2015). Characterization of biochars produced from residues from biogas production. Journal of Analytical and Applied Pyrolysis, 115, 157–165. https://doi.org/https://doi.org/10.1016/j.jaap.2015.07.011
- Stiborova, H., Wolfram, J., Demnerova, K., Macek, T., & Uhlik, O. (2015). Bacterial community structure in treated sewage sludge with mesophilic and thermophilic anaerobic digestion. Folia Microbiologica, 60(6), 531–539. https://doi.org/https://doi.org/10.1007/s12223-015-0396-9
- Streubel, J. D., Collins, H. P., Tarara, J. M., & Cochran, R. L. (2012). Biochar produced from anaerobically digested fiber reduces phosphorus in dairy lagoons. Journal of Environmental Quality, 41(4), 1166–1174. https://doi.org/https://doi.org/10.2134/jeq2011.0131
- Stutzenstein, P., Bacher, M., Rosenau, T., & Pfeifer, C. (2018). Optimization of nutrient and carbon recovery from anaerobic digestate via hydrothermal carbonization and investigation of the influence of the process parameters. Waste and Biomass Valorization, 9(8), 1303–1318. https://doi.org/https://doi.org/10.1007/s12649-017-9902-4
- Styles, D., Adams, P., Thelin, G., Vaneeckhaute, C., Chadwick, D., & Withers, P. J. A. (2018). Life cycle assessment of biofertilizer production and use compared with conventional liquid digestate management. Environmental Science & Technology, 52(13), 7468–7476. https://doi.org/https://doi.org/10.1021/acs.est.8b01619
- Sun, H., Chen, T., Kong, L., Cai, Q., Xiong, Y., & Tian, S. (2015). Potential of sludge carbon as new granular electrodes for degradation of acid orange 7. Industrial & Engineering Chemistry Research, 54(20), 5468–5474. https://doi.org/https://doi.org/10.1021/acs.iecr.5b00780
- Sun, L., Wan, S., & Luo, W. (2013). Biochars prepared from anaerobic digestion residue, palm bark, and eucalyptus for adsorption of cationic methylene blue dye: Characterization, equilibrium, and kinetic studies. Bioresource Technology, 140, 406–413. https://doi.org/https://doi.org/10.1016/j.biortech.2013.04.116
- Szogi, A. A., & Vanotti, M. B. (2009). Removal of phosphorus from livestock effluents. Journal of Environmental Quality, 38(2), 576–586. https://doi.org/https://doi.org/10.2134/jeq2007.0641
- Tambone, F., Genevini, P., D’Imporzano, G., & Adani, F. (2009). Assessing amendment properties of digestate by studying the organic matter composition and the degree of biological stability during the anaerobic digestion of the organic fraction of MSW. Bioresource Technology, 100(12), 3140–3142. https://doi.org/https://doi.org/10.1016/j.biortech.2009.02.012
- Tampio, E., Salo, T., & Rintala, J. (2016). Agronomic characteristics of five different urban waste digestates. Journal of Environmental Management, 169, 293–302. https://doi.org/https://doi.org/10.1016/j.jenvman.2016.01.001
- Tan, X., Chu, H., Zhang, Y., Yang, L., Zhao, F., & Zhou, X. (2014). Chlorella pyrenoidosa cultivation using anaerobic digested starch processing wastewater in an airlift circulation photobioreactor. Bioresource Technology, 170, 538–548. https://doi.org/https://doi.org/10.1016/j.biortech.2014.07.086
- Teater, C., Yue, Z., MacLellan, J., Liu, Y., & Liao, W. (2011). Assessing solid digestate from anaerobic digestion as feedstock for ethanol production. Bioresource Technology, 102(2), 1856–1862. https://doi.org/https://doi.org/10.1016/j.biortech.2010.09.099
- Thavamani, P., Megharaj, M., & Naidu, R. (2015). Metal-tolerant PAH-degrading bacteria: Development of suitable test medium and effect of cadmium and its availability on PAH biodegradation. Environmental Science and Pollution Research International, 22(12), 8957–8968. https://doi.org/https://doi.org/10.1007/s11356-013-1850-3
- Thygesen, O., Sommer, S. G., Shin, S. G., & Triolo, J. M. (2014). Residual biochemical methane potential (BMP) of concentrated digestate from full-scale biogas plants. Fuel, 132, 44–46. https://doi.org/https://doi.org/10.1016/j.fuel.2014.04.062
- Tian, X., Trzcinski, A. P., Lin, L. L., & Ng, W. J. (2016). Enhancing sewage sludge anaerobic “re-digestion” with combinations of ultrasonic, ozone and alkaline treatments. Journal of Environmental Chemical Engineering, 4(4), 4801–4807. https://doi.org/https://doi.org/10.1016/j.jece.2016.10.032
- Tiwari, V. N., Tiwari, K. N., & Upadhyay, R. (2000). Effect of crop residues and biogas slurry incorporation in wheat on yield and soil fertility. Journal of the Indian Society of Soil Science, 48, 515–520.
- Tonoli, G. H. D., Holtman, K. M., Glenn, G., Fonseca, A. S., Wood, D., Williams, T., Sa, V. A., Torres, L., Klamczynski, A., & Orts, W. J. (2016). Properties of cellulose micro/nanofibers obtained from eucalyptus pulp fiber treated with anaerobic digestate and high shear mixing. Cellulose, 23(2), 1239–1256. https://doi.org/https://doi.org/10.1007/s10570-016-0890-5
- Törnwall, E., Pettersson, H., Thorin, E., & Schwede, S. (2017). Post-treatment of biogas digestate–An evaluation of ammonium recovery, energy use and sanitation. Energy Procedia., 142, 957–963. https://doi.org/https://doi.org/10.1016/j.egypro.2017.12.153
- Troy, S. M., Nolan, T., Leahy, J. J., Lawlor, P. G., Healy, M. G., & Kwapinski, W. (2013). Effect of sawdust addition and composting of feedstock on renewable energy and biochar production from pyrolysis of anaerobically digested pig manure. Biomass and Bioenergy, 49, 1–9. https://doi.org/https://doi.org/10.1016/j.biombioe.2012.12.014
- Trzcinski, A. P., Ofoegbu, N., & Stuckey, D. C. (2011). Post-treatment of the permeate of a submerged anaerobic membrane bioreactor (SAMBR) treating landfill leachate. Journal of Environmental Science and Health, Part A, 46(13), 1539–1548. https://doi.org/https://doi.org/10.1080/10934529.2011.609402
- Tu, Y., Tian, S., Kong, L., & Xiong, Y. (2012). Co-catalytic effect of sewage sludge-derived char as the support of Fenton-like catalyst. Chemical Engineering Journal, 185, 44–51. https://doi.org/https://doi.org/10.1016/j.cej.2012.01.008
- Tu, Y., Xiong, Y., Tian, S., Kong, L., & Descorme, C. (2014). Catalytic wet air oxidation of 2-chlorophenol over sewage sludge-derived carbon-based catalysts. Journal of Hazardous Materials, 276, 88–96. https://doi.org/https://doi.org/10.1016/j.jhazmat.2014.05.024 https://doi.org/https://doi.org/10.1016/j.jhazmat.2014.05.024
- Udall, D., Rayns, F., & Charlesworth, S. (2017). The potential of biochar and anaerobic digestate use in a temperate conventional wheat production system. International Journal of Research in Agriculture and Forestry, 4, 44–49.
- Uggetti, E., Sialve, B., Latrille, E., & Steyer, J. P. (2014). Anaerobic digestate as substrate for microalgae culture: The role of ammonium concentration on the microalgae productivity. Bioresource Technology, 152, 437–443. https://doi.org/https://doi.org/10.1016/j.biortech.2013.11.036
- Uggetti, E., Sialve, B., Trably, E., & Steyer, J. P. (2014). Integrating microalgae production with anaerobic digestion: A biorefinery approach. Biofuels, Bioproducts and Biorefining, 8(4), 516–529. https://doi.org/https://doi.org/10.1016/j.biortech.2013.11.036 https://doi.org/https://doi.org/10.1002/bbb.1469
- Ukwuani, A. T., & Tao, W. (2016). Developing a vacuum thermal stripping - Acid absorption process for ammonia recovery from anaerobic digester effluent. Water Research, 106, 108–115. https://doi.org/https://doi.org/10.1016/j.watres.2016.09.054
- Ulbricht, M., Schneider, J., Stasiak, M., & Sengupta, A. (2013). Ammonia recovery from industrial wastewater by transmembrane chemisorption. Chemie Ingenieur Technik, 85(8), 1259–1262. https://doi.org/https://doi.org/10.1002/cite.201200237
- United States Environmental Protection Agency (USEPA). (1994). Method 3051: Microwave assisted acid digestion of sediments, sludges, soils, and oils. SW-846, Test Methods for Evaluating Solid Waste. USEPA. http://www.epa.gov/epaoswer/hazwaste/test/sw846.html
- Uysal, A., Yilmazel, Y. D., & Demirer, G. N. (2010). The determination of fertilizer quality of the formed struvite from effluent of a sewage sludge anaerobic digester. Journal of Hazardous Materials, 181(1–3), 248–254. https://doi.org/https://doi.org/10.1016/j.jhazmat.2010.05.004
- Valverde-Perez, B., Ramin, E., Smets, B. F., & Plosz, B. G. (2015). EBP2R - An innovative enhanced biological nutrient recovery activated sludge system to produce growth medium for green microalgae cultivation. Water Research, 68, 821–830. https://doi.org/https://doi.org/10.1016/j.watres.2014.09.027
- Van der Zee, M. (1997). Structure-biodegradability relationships of polymeric materials.
- Vaneeckhaute, C., Ghekiere, G., Michels, E., Vanrolleghem, P. A., Tack, F. M. G., & Meers, E. (2014). Assessing nutrient use efficiency and environmental pressure of macronutrients in biobased mineral fertilizers. Advances in Agronomy, 128, 137–180. https://doi.org/https://doi.org/10.1016/B978-0-12-802139-2.00004-4
- Vanotti, M. B., Szogi, A. A., Millner, P. D., & Loughrin, J. H. (2009). Development of a second-generation environmentally superior technology for treatment of swine manure in the USA. Bioresource Technology, 100(22), 5406–5416. https://doi.org/https://doi.org/10.1016/j.biortech.2009.02.019
- Vasseur, C., Bougaran, G., Garnier, M., Hamelin, J., Leboulanger, C., Le Chevanton, M., Mostajir, B., Sialve, B., Steyer, J.-P., & Fouilland, E. (2012). Carbon conversion efficiency and population dynamics of a marine algae-bacteria consortium growing on simplified synthetic digestate: First step in a bioprocess coupling algal production and anaerobic digestion. Bioresource Technology, 119, 79–87. https://doi.org/https://doi.org/10.1016/j.biortech.2012.05.128
- Vera, D., Jurado, F., & Carpio, J. (2011). Study of a downdraft gasifier and externally fired gas turbine for olive industry wastes. Fuel Processing Technology, 92(10), 1970–1979. https://doi.org/https://doi.org/10.1016/j.fuproc.2011.05.017
- Veronesia, D., Ida, A., & D’Imporzano, G. (2015). Microalgae cultivation: Nutrient recovery from digestate for producing algae biomass. Chemical Engineering, 43, 1201–1206. https://doi.org/https://doi.org/10.3303/CET1543201
- Vidhyasri, S., Subashchandrabose, S. R., Ganeshkumar, V., Thavamani, P., Chen, Z., Naidu, R., & Megharaj, M. (2016). Cultivation of Chlorella on brewery wastewater and nano-particle biosynthesis by its biomass. Bioresource Technology, 211, 698–703. https://doi.org/https://doi.org/10.1016/j.biortech.2016.03.154
- Vidlarova, P., Heviankova, S., & Kyncl, M. (2017). Contribution to the study of ammonia removal from digestate by struvite precipitation. IOP Conference Series: Earth and Environmental Science, 92, 012072. https://doi.org/https://doi.org/10.1088/1755-1315/92/1/012072
- Walsh, J. J., Jones, D. L., Chadwick, D. R., & Williams, A. P. (2018). Repeated application of anaerobic digestate, undigested cattle slurry and inorganic fertilizer N: Impacts on pasture yield and quality. Grass and Forage Science, 73(3), 758–763. https://doi.org/https://doi.org/10.1111/gfs.12354
- Walsh, J. J., Jones, D. L., Edwards-Jones, G., & Williams, A. P. (2012). Replacing inorganic fertilizer with anaerobic digestate may maintain agricultural productivity at less environmental cost. Journal of Plant Nutrition and Soil Science, 175(6), 840–845. https://doi.org/https://doi.org/10.1002/jpln.201200214
- Wang, J., Yang, H., & Wang, F. (2014). Mixotrophic cultivation of microalgae for biodiesel production: Status and prospects. Applied Biochemistry and Biotechnology, 172(7), 3307–3329. https://doi.org/https://doi.org/10.1007/s12010-014-0729-1
- Wang, L., Li, Y., Chen, P., Min, M., Chen, Y., Zhu, J., & Ruan, R. R. (2010). Anaerobic digested dairy manure as a nutrient supplement for cultivation of oil-rich green microalgae Chlorella sp. Bioresource Technology, 101(8), 2623–2628. https://doi.org/https://doi.org/10.1016/j.biortech.2009.10.062
- Wang, X., Bao, K., Cao, W., Zhao, Y., & Hu, C. W. (2017). Screening of microalgae for integral biogas slurry nutrient removal and biogas upgrading by different microalgae cultivation technology. Scientific Reports, 7(1), 5426. https://doi.org/https://doi.org/10.1038/s41598-017-05841-9
- Wang, X., Zhang, X., Wang, Y., Du, Y., Feng, H., & Xu, T. (2015). Simultaneous recovery of ammonium and phosphorus via the integration of electrodialysis with struvite reactor. Journal of Membrane Science, 490, 65–71. https://doi.org/https://doi.org/10.1016/j.memsci.2015.04.034
- Wang, Z., Gao, M., Wang, Z., She, Z., Chang, Q., Sun, C., Zhang, J., Ren, Y., & Yang, N. (2013). Effect of salinity on extracellular polymeric substances of activated sludge from an anoxic-aerobic sequencing batch reactor. Chemosphere, 93(11), 2789–2795. https://doi.org/https://doi.org/10.1016/j.chemosphere.2013.09.038
- Wang, Z., Nie, E., Li, J., Zhao, Y., Luo, X., & Zheng, Z. (2011). Carbons prepared from Spartina alterniflora and its anaerobically digested residue by H3PO4 activation: Characterization and adsorption of cadmium from aqueous solutions. Journal of Hazardous Materials, 188(1–3), 29–36. https://doi.org/https://doi.org/10.1016/j.jhazmat.2011.01.041
- Ward, A. J., Lewis, D. M., & Green, F. B. (2014). Anaerobic digestion of algae biomass: A review. Algal Research, 5, 204–214. https://doi.org/https://doi.org/10.1016/j.algal.2014.02.001
- Wen, G., Pan, Z.-H., Ma, J., Liu, Z.-Q., Zhao, L., & Li, J.-J. (2012). Reuse of sewage sludge as a catalyst in ozonation–efficiency for the removal of oxalic acid and the control of bromate formation. Journal of Hazardous Materials, 239, 381–388. https://doi.org/https://doi.org/10.1016/j.jhazmat.2012.09.016
- Williams, A. T., Zitomer, D. H., & Mayer, B. K. (2015). Ion exchange-precipitation for nutrient recovery from dilute wastewater. Environmental Science: Water Research & Technology, 1, 832–838. https://doi.org/https://doi.org/10.1039/C5EW00142K
- Wiśniewski, D., Gołaszewski, J., & Białowiec, A. (2015). The pyrolysis and gasification of digestate from agricultural biogas plant/Piroliza i gazyfikacja pofermentu z biogazowni rolniczych. Archives of Environmental Protection, 41(3), 70–75. https://doi.org/https://doi.org/10.1515/aep-2015-0032
- Wong, M. T., Mino, T., Seviour, R. J., Onuki, M., & Liu, W. T. (2005). In situ identification and characterization of the microbial community structure of full-scale enhanced biological phosphorous removal plants in Japan. Water Research, 39(13), 2901–2914. https://doi.org/https://doi.org/10.1016/j.watres.2005.05.015
- Wu, S., Lei, M., Lu, Q., Guo, L., & Dong, R. (2016). Treatment of pig manure liquid digestate in horizontal flow constructed wetlands: Effect of aeration. Engineering in Life Sciences, 16(3), 263–271. https://doi.org/https://doi.org/10.1002/elsc.201500030
- Wu, X., & Modin, O. (2013). Ammonium recovery from reject water combined with hydrogen production in a bioelectrochemical reactor. Bioresource Technology, 146, 530–536. https://doi.org/https://doi.org/10.1016/j.biortech.2013.07.130
- Xia, A., & Murphy, J. D. (2016). Microalgal cultivation in treating liquid digestate from biogas systems. Trends in Biotechnology, 34(4), 264–275. https://doi.org/https://doi.org/10.1016/j.tibtech.2015.12.010
- Xiao, B., Han, Y., Liu, X., & Liu, J. (2014). Relationship of methane and electricity production in two-chamber microbial fuel cell using sewage sludge as substrate. International Journal of Hydrogen Energy, 39(29), 16419–16425. https://doi.org/https://doi.org/10.1016/j.ijhydene.2014.08.024
- Xie, M., Shon, H. K., Gray, S. R., & Elimelech, M. (2016). Membrane-based processes for wastewater nutrient recovery: Technology, challenges, and future direction. Water Research, 89, 210–221. https://doi.org/https://doi.org/10.1016/j.watres.2015.11.045
- Xu, F., Khalaf, A., Sheets, J., Ge, X., Keener, H., & Li, Y. (2018). Phosphorus removal and recovery from anaerobic digestion residues. Advances in Bioenergy, 77–136. https://doi.org/https://doi.org/10.1016/bs.aibe.2018.02.003
- Xu, J., Zhao, Y., Zhao, G., & Zhang, H. (2015). Nutrient removal and biogas upgrading by integrating freshwater algae cultivation with piggery anaerobic digestate liquid treatment. Applied Microbiology and Biotechnology, 99(15), 6493–6501. https://doi.org/https://doi.org/10.1007/s00253-015-6537-x
- Yan, C., & Zheng, Z. (2013). Performance of photoperiod and light intensity on biogas upgrade and biogas effluent nutrient reduction by the microalgae Chlorella sp. Bioresource Technology, 139, 292–299. https://doi.org/https://doi.org/10.1016/j.biortech.2013.04.054
- Yan, C., & Zheng, Z. (2014). Performance of mixed LED light wavelengths on biogas upgrade and biogas fluid removal by microalga Chlorella sp. Applied Energy, 113, 1008–1014. https://doi.org/https://doi.org/10.1016/j.apenergy.2013.07.012
- Yang, L., Tan, X., Li, D., Chu, H., Zhou, X., Zhang, Y., & Yu, H. (2015). Nutrients removal and lipids production by Chlorella pyrenoidosa cultivation using anaerobic digested starch wastewater and alcohol wastewater. Bioresource Technology, 181, 54–61. https://doi.org/https://doi.org/10.1016/j.biortech.2015.01.043
- Yao, Y., Gao, B., Inyang, M., Zimmerman, A. R., Cao, X., Pullammanappallil, P., & Yang, L. (2011). Biochar derived from anaerobically digested sugar beet tailings: Characterization and phosphate removal potential. Bioresource Technology, 102(10), 6273–6278. https://doi.org/https://doi.org/10.1016/j.biortech.2011.03.006
- Yilmazel, Y. D., & Demirer, G. N. (2011). Removal and recovery of nutrients as struvite from anaerobic digestion residues of poultry manure. Environmental Technology, 32(7–8), 783–794. https://doi.org/https://doi.org/10.1080/09593330.2010.512925
- Yilmazel, Y. D., & Demirer, G. N. (2013). Nitrogen and phosphorus recovery from anaerobic co-digestion residues of poultry manure and maize silage via struvite precipitation. Waste Management & Research, 31(8), 792–804. https://doi.org/https://doi.org/10.1177/0734242X13492005
- Yoshizawa, T., Miyahara, M., Kouzuma, A., & Watanabe, K. (2014). Conversion of activated-sludge reactors to microbial fuel cells for wastewater treatment coupled to electricity generation. Journal of Bioscience and Bioengineering, 118(5), 533–539. https://doi.org/https://doi.org/10.1016/j.jbiosc.2014.04.009
- Yu, J. (2001). Production of PHA from starchy wastewater via organic acids. Journal of Biotechnology, 86(2), 105–112. https://doi.org/https://doi.org/10.1016/S0168-1656(00)00405-3
- Yu, Y., Wei, H., Yu, L., Zhang, T., Wang, S., Li, X., Wang, J., & Sun, C. (2015). Surface modification of sewage sludge derived carbonaceous catalyst for m-cresol catalytic wet peroxide oxidation and degradation mechanism. RSC Advances, 5(52), 41867–41876. https://doi.org/https://doi.org/10.1039/C5RA00858A
- Yuan, S. J., & Dai, X. H. (2017). Sewage sludge-based functional nanomaterials: Development and applications. Environmental Science: Na, 4(1), 17–26. https://doi.org/https://doi.org/10.1039/C6EN00177G
- Yuan, S., Liao, N., Dong, B., & Dai, X. (2016). Optimization of a digested sludge-derived mesoporous material as an efficient and stable heterogeneous catalyst for the photo-Fenton reaction. Chinese Journal of Catalysis, 37(5), 735–742. https://doi.org/https://doi.org/10.1016/S1872-2067(15)61066-X
- Yuan, S.-J., & Dai, X.-H. (2014). Facile synthesis of sewage sludge-derived mesoporous material as an efficient and stable heterogeneous catalyst for photo-Fenton reaction. Applied Catalysis B: Environmental, 154, 252–258. https://doi.org/https://doi.org/10.1016/j.apcatb.2014.02.031
- Yuan, S.-J., & Dai, X.-H. (2015). Heteroatom-doped porous carbon derived from “all-in-one” precursor sewage sludge for electrochemical energy storage. RSC Advances, 5(57), 45827–45835. https://doi.org/https://doi.org/10.1039/C5RA07178J
- Yuan, S.-J., & Dai, X.-H. (2016). An efficient sewage sludge-derived bi-functional electrocatalyst for oxygen reduction and evolution reaction. Green Chemistry, 18(14), 4004–4011. https://doi.org/https://doi.org/10.1039/C5GC02729B
- Yuan, Y., Liu, T., Fu, P., Tang, J., & Zhou, S. (2015). Conversion of sewage sludge into high-performance bifunctional electrode materials for microbial energy harvesting. Journal of Materials Chemistry A, 3(16), 8475–8482. https://doi.org/https://doi.org/10.1039/C5TA00458F
- Yuan, Y., Yuan, T., Wang, D., Tang, J., & Zhou, S. (2013). Sewage sludge biochar as an efficient catalyst for oxygen reduction reaction in an microbial fuel cell. Bioresource Technology, 144, 115–120. https://doi.org/https://doi.org/10.1016/j.biortech.2013.06.075
- Yuan, Z., Pratt, S., & Batstone, D. J. (2012). Phosphorus recovery from wastewater through microbial processes. Current Opinion in Biotechnology, 23(6), 878–883. https://doi.org/https://doi.org/10.1016/j.copbio.2012.08.001
- Yue, Z., Teater, C., Liu, Y., Maclellan, J., & Liao, W. (2010). A sustainable pathway of cellulosic ethanol production integrating anaerobic digestion with biorefining. Biotechnology and Bioengineering, 105(6), 1031–1039. https://doi.org/https://doi.org/10.1002/bit.22627
- Yue, Z., Teater, C., MacLellan, J., Liu, Y., & Liao, W. (2011). Development of a new bioethanol feedstock – Anaerobically digested fiber from confined dairy operations using different digestion configurations. Biomass and Bioenergy, 35(5), 1946–1953. https://doi.org/https://doi.org/10.1016/j.biombioe.2011.01.035
- Zhang, D., Wang, J., & Pan, X. (2006). Cadmium sorption by EPSs produced by anaerobic sludge under sulfate-reducing conditions. Journal of Hazardous Materials, 138(3), 589–593. https://doi.org/https://doi.org/10.1016/j.jhazmat.2006.05.092
- Zhang, G., Zhao, Q., Jiao, Y., Wang, K., Lee, D.-J., & Ren, N. (2012). Efficient electricity generation from sewage sludge using biocathode microbial fuel cell. Water Research, 46(1), 43–52. https://doi.org/https://doi.org/10.1016/j.watres.2011.10.036
- Zhang, J. J., Fan, H. X., Dai, X. H., & Yuan, S. J. (2018). Digested sludge-derived three-dimensional hierarchical porous carbon for high-performance supercapacitor electrode. Royal Society Open Science, 5(4), 172456. https://doi.org/https://doi.org/10.1098/rsos.172456
- Zhang, Y., & Angelidaki, I. (2014). Microbial electrolysis cells turning to be versatile technology: Recent advances and future challenges. Water Research, 56, 11–25. https://doi.org/https://doi.org/10.1016/j.watres.2014.02.031
- Zhang, Y., & Luo, W. (2014). Adsorptive removal of heavy metal from acidic wastewater with biochar produced from anaerobically digested residues: Kinetics and surface complexation modeling. BioResources, 9(2), 2484–2499. https://doi.org/https://doi.org/10.15376/biores.9.2.2484-2499
- Zhao, C. E., Gai, P., Song, R., Chen, Y., Zhang, J., & Zhu, J. J. (2017). Nanostructured material-based biofuel cells: Recent advances and future prospects. Chemical Society Reviews, 46(5), 1545–1564. https://doi.org/https://doi.org/10.1039/c6cs00044d
- Zhao, P., Shen, Y., Ge, S., & Yoshikawa, K. (2014). Energy recycling from sewage sludge by producing solid biofuel with hydrothermal carbonization. Energy Conversion and Management, 78, 815–821. https://doi.org/https://doi.org/10.1016/j.enconman.2013.11.026
- Zhao, Q., & Liu, Y. (2019). Is anaerobic digestion a reliable barrier for deactivation of pathogens in biosludge? The Science of the Total Environment, 668, 893–902. https://doi.org/https://doi.org/10.1016/j.scitotenv.2019.03.063
- Zhao, Q.-B., Ma, J., Zeb, I., Yu, L., Chen, S., Zheng, Y.-M., & Frear, C. (2015). Ammonia recovery from anaerobic digester effluent through direct aeration. Chemical Engineering Journal, 279, 31–37. https://doi.org/https://doi.org/10.1016/j.cej.2015.04.113
- Zhao, Y., Sun, S., Hu, C., Zhang, H., Xu, J., & Ping, L. (2015). Performance of three microalgal strains in biogas slurry purification and biogas upgrade in response to various mixed light-emitting diode light wavelengths. Bioresource Technology, 187, 338–345. https://doi.org/https://doi.org/10.1016/j.biortech.2015.03.130
- Zhong, X. Z., Li, X. X., Zeng, Y., Wang, S. P., Sun, Z. Y., & Tang, Y. Q. (2020). Dynamic change of bacterial community during dairy manure composting process revealed by high-throughput sequencing and advanced bioinformatics tools. Bioresource Technology, 306, 123091. https://doi.org/https://doi.org/10.1016/j.biortech.2020.123091
- Zhong, Y., Chen, R., Rojas-Sossa, J.-P., Isaguirre, C., Mashburn, A., Marsh, T., Liu, Y., & Liao, W. (2020). Anaerobic co-digestion of energy crop and agricultural wastes to prepare uniform-format cellulosic feedstock for biorefining. Renewable Energy., 147, 1358–1370. https://doi.org/https://doi.org/10.1016/j.renene.2019.09.106
- Zhong, Y., Liu, Z., Isaguirre, C., Liu, Y., & Liao, W. (2016). Fungal fermentation on anaerobic digestate for lipid-based biofuel production. Biotechnology for Biofuels, 9(1), 253. https://doi.org/https://doi.org/10.1186/s13068-016-0654-3
- Zhu, L. (2015). Microalgal culture strategies for biofuel production: A review. Biofuels, Bioproducts and Biorefining, 9(6), 801–814. https://doi.org/https://doi.org/10.1002/bbb.1576
- Zhuang, H., Han, H., Hou, B., Jia, S., & Zhao, Q. (2014). Heterogeneous catalytic ozonation of biologically pretreated Lurgi coal gasification wastewater using sewage sludge based activated carbon supported manganese and ferric oxides as catalysts. Bioresource Technology, 166, 178–186. https://doi.org/https://doi.org/10.1016/j.biortech.2014.05.056
- Zuliani, L., Frison, N., Jelic, A., Fatone, F., Bolzonella, D., & Ballottari, M. (2016). Microalgae cultivation on anaerobic digestate of municipal wastewater, sewage sludge and agro-waste. International Journal of Molecular Sciences, 17(10), 1692. https://doi.org/https://doi.org/10.3390/ijms17101692