Scientometric study of drinking water treatments technologies: Present and future challenges

Figures & data

Figure 1. Quantities of original articles and reviews which were published in WoS and Scopus databases

Table 1. Main types of published documents: a) WoS and b) Scopus

WoS			SCOPUS
Document type	Documents	Percentage (%)	Document type	Documents	Percentage (%)
Article	2703	90.7%	Article	2999	86.8%
Review	180	6%	Review	156	4.5%
Book Chapter	2	0.1%	Book chapter	70	2.0%
Proceedings Paper	74	2.5%	Conference paper	218	6.3%
Data Paper	1	0.03%	Conference review	13	0.4%
Early Access	20	0.67%
	2980	100.0%		3456	100.00%

Figure 2. Documents by year in Scopus and WoS

Figure 3. Documents by subject area: (a) WoS and (b) Scopus

Figure 4. Sources of studies: (a) WoS and (b) Scopus

Table 2. Top 10 WoS journals

N°	Source	TP	Cites	% publications	H	Q	Country	Topic
1	Water research	260	9875	9.02	285	Q1	Netherlands	Engineering
2	Science of the total environment	176	4719	6.1	224	Q1	Netherlands	Chemistry
3	Desalination and water treatment	147	588	5.1	51	Q2	United States	Engineering
4	Chemosphere	143	3375	4.96	228	Q1	United Kingdom	Chemistry
5	Environmental science and pollution research	98	1386	3.4	98	Q2	Germany	Environmental Science
6	Water Science and Technology: Water Supply	91	322	3.16	37	Q3	United Kingdom	Environmental Science
7	Environmental Science and Technology	84	2931	2.91	373	Q1	United States	Chemistry
8	Journal of Hazardous Materials	57	2353	1.98	260	Q1	Netherlands	Environmental Science
9	Journal of water supply research and technology-aqua	53	280	1.84	48	Q3	United Kingdom	Environmental Science
10	Chemical engineering journal	49	1160	1.7	198	Q1	Netherlands	Chemical Engineering

Table 3. Top 10 Scopus journals

N°	Source	TP	Cites	% publications	H	Q	Country	Topic
1	Water Research	296	8332	9.41	285	Q1	Netherlands	Engineering
2	Chemosphere	157	3218	4.99	228	Q1	United Kingdom	Chemistry
3	Science of the Total Environment	132	3105	4.2	224	Q1	Netherlands	Environmental Science
4	Environmental Science and Technology	95	3669	3.02	373	Q1	United States	Chemistry
5	Environmental Science and Pollution Research	94	1207	2.99	98	Q2	Germany	Environmental Science
6	Desalination and Water Treatment	89	390	2.83	51	Q2	United States	Engineering
7	Journal of Hazardous Materials	62	2864	1.97	260	Q1	Netherlands	Environmental Science
8	Water Science and Technology: Water Supply	53	151	1.69	37	Q3	United Kingdom	Environmental Science
9	Journal of Water And Health	45	298	1.43	56	Q2	United Kingdom	Environmental Science
10	Journal of Environmental Sciences (China)	39	673	1.24	90	Q1	Netherlands	Environmental Science

TP: Total Production., Q: Quartil, H-Index: Hirsh index

Figure 5. Map of co-occurrence of keywords: (a) WoS and (b) Scopus. Source: VOS Viewer

Figure 6. Network visualization of major countries in water treatment research: (a) WoS and (b) Scopus

Figure 7. Visualization of the main institutions in drinking water treatment research: (a) WoS and (b) Scopus

Figure 8. Visualization of the main authors in drinking water treatment research: (a) WoS and (b) Scopus

Table 4. Top ten most cited papers related to drinking water treatment in WoS

Nº	Authors	Citations	Title	Journal
1	Hasan and Jhung (2015)	589	Removal of hazardous organics from water using metal-organic frameworks (MOFs): plausible mechanisms for selective adsorptions	Journal of Hazardous Materials
2	Loos et al. (2010)	487	Pan-European survey on the occurrence of selected polarorganic persistent pollutants in ground water	Water Research
3	Matilainen et al. (2011)	357	An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment	Chemosphere
4	Yang et al. (2017)	344	Occurrences and removal of pharmaceuticals and personal care products (PPCPs) in drinking water and water/sewage treatment plants: A review	Science of the total environment
5	Hughes et al. (2013)	334	Global Synthesis and Critical Evaluation of Pharmaceutical Data Sets Collected from River Systems0	Environmental Science & Technology
6	Wang et al. (2013)	332	Adsorptive remediation of environmental pollutants using novel graphene-based nanomaterials	Chemical Engineering Journal
7	Liu et al. (2016)	302	Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light	Nature Nanotechnology
8	Post et al. (2012)	277	Perfluorooctanoic acid (PFOA), an emerging drinking water contaminant: a critical review of recent literature	Environ Research
9	Murray et al. (2010)	277	Prioritizing Research for Trace Pollutants and Emerging Contaminants in the Freshwater Environment	Environmental Pollution
10	Evgenidou et al. (2015)	256	Occurrence and removal of transformation products of PPCPs and illicit drugs in wastewaters: a review.	The Science of the Total Environment

Table 5. Top ten documents with more citations related to potabilization in Scopus

N°	Authors	Citations	Title	Journal
1	Chandra et al. (2010)	1441	Water-dispersible magnetite-reduced graphene oxide composites for arsenic removal	American Chemical Society
2	Hashim et al. (2011)	480	Remediation technologies for heavy metal contaminated groundwater	Journal of Environmental Management
3	Yang et al. (2017)	397	Occurrences and removal of pharmaceuticals and personal care products (PPCPs) in drinking water and water/sewage treatment plants: A review	Science of the total environment
4	Matilainen et al. (2011)	396	An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment	Chemosphere
5	Liu et al. (2016)	312	Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light	Nature Nanotechnology
6	Dankovich and Gray (2011)	289	Bactericidal Paper Impregnated with Silver Nanoparticles for Point-of-Use Water Treatment	Environmental Science & Technolog
7	Baghoth et al. (2011)	288	Tracking natural organic matter (NOM) in a drinking water treatment plant using fluorescence excitation-emission matrices and PARAFAC	Water Research
8	McGuigan et al. (2012)	230	Solar water disinfection (SODIS): a review from bench-top to roof-top	Journal of Hazardous Materials
9	Rahman et al. (2014)	220	Behaviour and fate of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in drinking water treatment: a review	Water Research
10	Bedoux et al. (2012)	218	Occurrence and toxicity of antimicrobial triclosan and by-products in the environment	Environ Sci Pollut Res

Table 6. Articles most cited in WoS and Scopus: drinking water treatments

Author/s	Year	Age	Title	WoS				Scopus
				R	C	C/Age	R	C	C/Age
Loos et al. (2010)	2010	10	Pan-European survey on the occurrence of selected polarorganic persistent pollutants in ground water	3	487	48.7
Chandra et al. (2010)	2010	10	Water-dispersible magnetite-reduced graphene oxide composites for arsenic removal				1	1441	144.1
Hasan and Jhung (2015)	2015	5	Removal of hazardous organics from water using metal-organic frameworks (MOFs): plausible mechanisms for selective adsorptions	2	589	117.8
Hashim et al. (2011)	2011	9	Remediation technologies for heavy metal contaminated groundwater				4	480	53.3
Yang et al. (2017)	2017	3	Occurrences and removal of pharmaceuticals and personal care products (PPCPs) in drinking water and water/sewage treatment plants: A review	5	344	114.7	5	397	132.3
Matilainen et al. (2011)	2011	9	An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment	6	357	39.7	6	396	44.0
Hughes et al. (2013)	2013	7	Global Synthesis and Critical Evaluation of Pharmaceutical data sets Collected from River Systems	7	334	47.7
Wang et al. (2013)	2013	7	Adsorptive remediation of environmental pollutants using novel graphene-based nanomaterials	8	332	47.4
Liu et al. (2016)	2016	4	Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light	9	302	75.5	9	312	78
Dankovich and Gray (2011)	2011	9	Bactericidal Paper Impregnated with Silver Nanoparticles for Point-of-Use Water Treatment				10	289	32.1
Baghoth et al. (2011)	2011	9	Tracking natural organic matter (NOM) in a drinking water treatment plant using fluorescence excitation-emission matrices and PARAFAC				11	288	32
Post et al. (2012)	2012	8	Perfluorooctanoic acid (PFOA), an emerging drinking water contaminant: a critical review of recent literature	12	277	34.6
Murray et al. (2010)	2010	10	Prioritizing Research for Trace Pollutants and Emerging Contaminants in the Freshwater Environment	13	277	27.7
Evgenidou et al. (2015)	2015	5	Occurrence and removal of transformation products of PPCPs and illicit drugs in wastewaters: a review	14	256	51.2
McGuigan et al. (2012)	2012	8	Solar water disinfection (SODIS): a review from bench-top to roof-top				15	230	28.8
Rahman et al. (2014)	2014	6	Behaviour and fate of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in drinking water treatment: a review				16	220	36.7
Bedoux et al. (2012)	2012	8	Occurrence and toxicity of antimicrobial triclosan and by-products in the environment				17	218	27.3
Total					3555			4271
Average						60.5			60.9

R, rank; C, the total number of citations per year; C/Age, average citations received by years.

Figure 9. Technologies used: (a) WoS and (b) Scopus

Figure 10. Main pollutants studied: (a) WoS and (b) Scopus

Figure 11. Pollutants removed in the year 2010 and 2019: (a) WoS and (b) Scopus

Hasan, Z., & Jhung, S. H. (2015). Removal of hazardous organics from water using metal-organic frameworks (MOFs): Plausible mechanisms for selective adsorptions. Journal of Hazardous Materials, 283, 329–339. https://doi.org/10.1016/j.jhazmat.2014.09.046

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Loos, R., Locoro, G., Comero, S., Contini, S., Schwesig, D., Werres, F., Balsaa, P., Gans, O., Weiss, S., Blaha, L., Bolchi, M. & Gawlik, B. M. (2010). Pan-European survey on the occurrence of selected polar organic persistent pollutants in ground water. Water research, 44(14), 4115–4126. https://doi.org/10.1016/j.watres.2010.05.032

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Matilainen, A., Gjessing, E. T., Lahtinen, T., Hed, L., Bhatnagar, A., & Sillanpää, M. (2011). An overview of the methods used in the characterisation of natural organic matter (NOM) in relation to drinking water treatment. Chemosphere, 83(11), 1431–1442. https://doi.org/10.1016/j.chemosphere.2011.01.018

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Yang, Y., Ok, Y. S., Kim, K. H., Kwon, E. E., & Tsang, Y. F. (2017). Occurrences and removal of pharmaceuticals and personal care products (PPCPs) in drinking water and water/ sewage treatment plants: A review. Science of the Total Environment, 596–597, 303–320. https://doi.org/10.1016/j.scitotenv.2017.04.102

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Hughes, S. R., Kay, P., & Brown, L. E. (2013). Global synthesis and critical evaluation of pharmaceutical data sets collected from river systems. Environmental Science and Technology, 47(2), 661–677. https://doi.org/10.1021/es3030148

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Wang, S., Sun, H., Ang, H. M. & Tadé, M. O. (2013). Adsorptive remediation of environmental pollutants using novel graphene-based nanomaterials. Chemical engineering journal, 226, 336–347. https://doi.org/10.1016/j.cej.2013.04.070

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Liu, C., Kong, D., Hsu, P. C., Yuan, H., Lee, H. W., Liu, Y., Wang, H., Wang, S., Yan, K., Lin, D., Maraccini, P. A., Parker, K. M., Boehm, A. B., & Cui, Y. (2016). Rapid water disinfection using vertically aligned MoS2 nanofilms and visible light. Nature Nanotechnology, 11(12), 1098–1104. https://doi.org/10.1038/nnano.2016.138

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Post, G. B., Cohn, P. D., & Cooper, K. R. (2012). Perfluorooctanoic acid (PFOA), an emerging drinking water contaminant: A critical review of recent literature. Environmental Research, 116, 93–117. https://doi.org/10.1016/j.envres.2012.03.007

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Murray, K. E., Thomas, S. M., & Bodour, A. A. (2010). Prioritizing research for trace pollutants and emerging contaminants in the freshwater environment. Environmental Pollution, 158(12), 3462–3471. https://doi.org/10.1016/j.envpol.2010.08.009

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Evgenidou, E. N., Konstantinou, I. K., & Lambropoulou, D. A. (2015). Occurrence and removal of transformation products of PPCPs and illicit drugs in wastewaters: A review. Science of the Total Environment, 505, 905–926. https://doi.org/10.1016/j.scitotenv.2014.10.021

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Chandra, V., Park, J., Chun, Y., Lee, J. W., Hwang, I. C., & Kim, K. S. (2010). Water-dispersible magnetite-reduced graphene oxide composites for arsenic removal. ACS Nano, 4(7), 3979–3986. https://doi.org/10.1021/nn1008897

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Hashim, M. A., Mukhopadhyay, S., Sahu, J. N., & Sengupta, B. (2011). Remediation technologies for heavy metal contaminated groundwater. Journal of Environmental Management, 92(10), 2355–2388. https://doi.org/10.1016/j.jenvman.2011.06.009

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Dankovich, T. A., & Gray, D. G. (2011). Bactericidal paper impregnated with silver nanoparticles for point-of-use water treatment. Environmental Science and Technology, 45(5), 1992–1998. https://doi.org/10.1021/es103302t

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Baghoth, S. A., Sharma, S. K., & Amy, G. L. (2011). Tracking natural organic matter (NOM) in a drinking water treatment plant using fluorescence excitation-emission matrices and PARAFAC. Water Research, 45(2), 797–809. https://doi.org/10.1016/j.watres.2010.09.005

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McGuigan, K. G., Conroy, R. M., Mosler, H. J., Du Preez, M., Ubomba-Jaswa, E., & Fernandez-Ibañez, P. (2012). Solar water disinfection (SODIS): A review from bench-top to roof-top. Journal of Hazardous Materials, 235–236, 29–46. https://doi.org/10.1016/j.jhazmat.2012.07.053

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Rahman, M. F., Peldszus, S., & Anderson, W. B. (2014). Behaviour and fate of perfluoroalkyl and polyfluoroalkyl substances (PFASs) in drinking water treatment: A review. Water Research, 50, 318–340. https://doi.org/10.1016/j.watres.2013.10.045

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Bedoux, G., Roig, B., Thomas, O., Dupont, V., & Le Bot, B. (2012). Occurrence and toxicity of antimicrobial triclosan and by-products in the environment. Environmental Science and Pollution Research, 19(4), 1044–1065. https://doi.org/10.1007/s11356-011-0632-z

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