References
- Cimino , G. and Caristi , C. 1990 . Acute toxicity of heavy metals to aerobic digestion of waste cheese whey . Biological Wastes , 33 : 201 – 210 .
- Madoni , P. , Davoli , D. , Gorbi , G. and Vescovi , L. 1996 . Toxic effect of heavy metals on the activated sludge protozoan community . Water Res. , 30 : 135 – 142 .
- Goel , J. , Kadirvelu , K. , Rajagopal , C. and Garg , V. K. 2005 . Removal of lead (II) by adsorption using treated granular activated carbon: batch and column studies . J. Hazard. Mater. , B125 : 211 – 220 .
- Raji , C. and Anirudhan , T. S. 1998 . Batch Cr(VI) removal by polyacrylamidegrafted sawdust: kinetics and thermodynamics . Water Res. , 32 : 3772 – 3780 .
- Gode , F. and Pehlivan , E. 2006 . Removal of chromium(III) from aqueous solutions using Lewatit S 100: The effect of pH, time, metal concentration and temperature . J. Hazard. Mater. , 136 : 330 – 337 .
- Braukman , B. M. 1990 . “ Industrial solutions amenable to biosorption ” . In Biosorption of Heavy Metals , Edited by: Volesky , B. 51 – 64 . USA : CRC Press .
- Ozer , A. , Altundogan , H. S. , Erdem , M. and Tumen , F. 1997 . A study on the Cr (VI) removal from aqueous solutions by steel wool . Environ. Pollut. , 97 ( 1–2 ) : 107 – 112 .
- Lotfi , M. and Adhoum , N. 2002 . Modified activated carbon for the removal of copper, zinc, chromium and cyanide from wastewater . Separ. Purif. Technol. , 26 : 137 – 146 .
- Namasivayam , C. and Yamuna , R. T. 1995 . Adsorption of chromium (VI) by a low-cost adsorbent: biogas residual slurry . Chemosphere , 30 : 561 – 578 .
- Rengaraj , S. , Joo , C. K. , Kim , Y. and Yi , J. 2003 . Kinetics of removal of chromium from water and electronic process wastewater by ion exchange resins: 1200H, 1500H and IRN97N . J. Hazard. Mater. , B102 : 257 – 275 .
- Padilla , A. P. and Tavani , E. L. 1999 . Treatment of an industrial effluent by reverse osmosis . Desalination , 129 : 219 – 226 .
- Bai , R. S. and Abraham , T. E. 2003 . Studies on chromium (VI) adsorptione desorption using immobilized fungal biomass . Bioresour. Technol. , 87 : 17 – 26 .
- Garg , V. K. , Gupta , R. , Gupta , R. K. and Kumar , R. 2004 . Adsorption of chromium from aqueous solution on treated sawdust . Bioresour. Technol. , 92 : 79 – 81 .
- Zhang , L. , Zhao , L. , Yu , Y. and Chen , C. 1998 . Removal of lead from aqueous solution by non-living Rhizopus nigricans . Water Res. , 32 : 1437 – 1444 .
- Kapoor , A. and Viraraghavan , T. 1999 . Removal of heavy metals using the fungus Aspergillus niger . Bioresour. Technol. , 70 : 95 – 104 .
- Aksu , Z. 2001 . Equilibrium and kinetic modelling of cadmium (II) biosorption by C. vulgaris in a batch system: effect of temperature . Separ. Purif. Technol. , 21 : 285 – 294 .
- Huang , C. P. and Wu , M. H. 1977 . The removal of chromium (VI) from dilute aqueous solution by activated carbon . Water Res. , 11 : 673 – 679 .
- Karthikeyan , T. , Rajgopal , S. and Miranda , L. R. 2005 . Chromium (VI) adsorption from aqueous solution by Hevea Brasilinesis sawdust activated carbon . J. Hazard. Mater. , B124 : 192 – 199 .
- Mohanty , K. , Jha , M. , Meikap , B. C. and Biswas , M. N. 2006 . Biosorption of Cr(VI) from aqueous solutions by Eichhornia crassipes . Chem. Eng. J. , 117 : 71 – 77 .
- Hall , K. R. , Eagleton , L. C. , Acrivos , A. and Vermeulen , T. 1966 . Pore and solid diffusion kinetics in fixed bed adsorption under constant pattern conditions . Indian Eng. Chem. Fundam. , 5 : 212 – 218 .
- Treybal , R. E. 1981 . Mass-Transfer Operations , 3rd ed. , McGraw Hill .
- Garg , U. K. , Kaur , M. P. , Garg , V. K. and Sud , D. 2008 . Removal of nickel (II) from aqueous solution by adsorption on agricultural waste biomass using a response surface methodological approach . Bioresour. Technol. , 99 ( 5 ) : 1325 – 1331 .
- Donat , R. , Akdogan , A. , Erdem , E. and Cetisli , H. 2005 . Thermodynamics of Pb2+ and Ni2+ adsorption onto natural bentonite from aqueous solution . J. Colloid Interf. Sci. , 286 : 43 – 52 .
- Dubinin , M. M. , Zaverina , E. D. and Radushkevich , L. V. 1947 . Sorption and structure of active carbons. I. Adsorption of organic vapors . Zhurnal Fizicheskoi Khimii , 21 : 1351 – 1362 .