Factors Affecting Chromium(VI) Removal by Modified Poly(4-Vinylpyridine) Coated Silica Gel
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 5, Issue 2
Abstract
A reactive polymer, alkyl quaternized poly(4-vinylpyridine) (PVP) was synthesized and coated on the surface of silica gel to test its ability to remove Cr(VI) from water. Batch experiments were conducted with the coated gel to determine the effect of the Cr(VI) concentrations on the rate of sorption and the influence of other anions on the Cr(VI) adsorption. The concentrations of Cr(VI) had a pronounced effect on the rate of sorption. The adsorption of Cr(VI) was influenced to some extent by other anions. The relative effect in decreasing order for , Cl−, and CH3COO− ions on the adsorption of Cr(VI) was > Cl− > CH3COO−. Chromium adsorbed on the coated gel was easily recovered under certain conditions. NaOH was a good desorption reagent for Cr(VI) with a desorption efficiency of up to 90%. The desorption rate was very fast. After desorption, the coated silica gel could be reused.
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References
1.
Ajmail, M., and Rao, R. ( 1996). “Studies on removal and recovery of Cr(VI) from electroplating wastewater.” Water Res., 30(6), 1478–1482.
2.
Brower, J. B., Ryan, R. L., and Pazirandeh, M. ( 1997). “Comparison of ion-exchange resins and biosorbents for the removal of heavy metals from plating factory wastewater.” Envir. Sci. and Technol., 31(10), 2910–2914.
3.
Chanda, M., and Rempel, G. L. ( 1993). “Poly(4-vinylpyridine) gel-coated on silica: high capacity and fast kinetics in uranyl sulfate recovery.” Indus. and Engrg. Chem. Res., 32(4), 726–732.
4.
Chanda, M., and Rempel, G. L. ( 1994). “Quaternized poly(4-vinylpyridine) gel-coated on silica: fast kinetics of diffusion-controlled sorption of organic sulfonates.” Indus. and Engrg. Chem. Res., 33(3), 623–630.
5.
Chen, C. ( 1994). “A new Cr(VI) adsorbing agent.” Huanjing Wuran Yu Fangzhi, Hangzhou, Zhejiang, 16(2), 27–28 (in Chinese).
6.
Ciavatta, C., Montecchio, D., and Sequi, P. ( 1992). “Applicazione di un test rapidoper la determinazione del potere ossidante del terreno nei confronti del cromo.” Acqua Aria., Milan, 9, 875–879 (in Italian).
7.
Clevenger, T., and Novak, J. T. ( 1983). “The recovery of metals from electroplating wastes using liquid-liquid extraction.” J. Water Pollution Control Fed., 55(7), 984–989.
8.
Fraser, B. G., and Pritzker, M. D. ( 1994). “Removal and recovery of chromium from aqueous effluents.” Separation Sci. and Technol., 29(16), 2097–2116.
9.
Gang, D., Banerji, S. K., and Clevenger, T. E. (2000). “Chromium (VI) removal by modified PVP-coated silica gel.”Pract. Periodical of Haz., Toxic, and Radioactive Waste Mgmt., ASCE, 4(3), 105–110.
10.
Heary, L. E., and Ray, D. ( 1987). “Kinetics of Cr(III) oxidation to Cr(VI) by reaction with MnO2.” Envir. Sci. and Technol., 21, 1187–1193.
11.
Macauley, E., and Hong, A. ( 1995). “Chelation extraction of lead from soil using pyridine-2,6-dicarboxylic acid.” J. Haz. Mat., 40, 257–270.
12.
Norvelle, N. R. ( 1992). “Removal of chromium from water.” Proc., 5th Ann. Haz. Water Mgmt. Conf., Sandia National Laboratory, Albuquerque, N.M.
13.
Ouki, S. K., and Neufeld, R. D. ( 1997). “Use of activated carbon for the recovery of chromium from industrial wastewater.” J. Chem. Technol. and Biotechnol., 70(1), 3–8.
14.
Owens, D. C. ( 1985). Practical principles of ion exchange water treatment, Tall Oaks Publishing, Littleton, Colo.
15.
Patterson, J. W., and Passino, R. ( 1987). Metals speciation, separation, and recovery, Lewis, Chelsea, Mich.
16.
Petruzzelli, D., and Tiravanti, G. ( 1995). “Ion exchange process for chromium removal and recovery from tannery waster.” Ind. and Engrg. Chem. Res., 34(8), 2612–2617.
17.
Pontius, F. W. ( 1991). Water quality and treatment, 4th Ed., McGraw-Hill, New York.
18.
Santiago, I. ( 1995). “Removal of hexavalent chromium from water using tailored zeolites.” PhD dissertation, New Mexico State University, Las Cruces, N.M.
19.
Shen, H., and Wang, Y. T. (1995). “Hexavalent chromium removal in two-stage bioreactor system.”J. Envir. Engrg., ASCE, 121(11), 798–804.
20.
Tiravanti, G., and Petruzzelli, D. ( 1996). “Low and non waste technologies for metals recovery by reactive polymers.” Waste Mgmt., 16(7), 597–605.
21.
U.S. Environmental Protection Agency (U.S. EPA). ( 1980). “EPA control and treatment technology for the metal finishing industry.” Sulfide Precipitation: EPA-625/8-80-003, Cincinnati, Ohio.
22.
Ward, N. ( 1990). “Adsorption of hexavalent chromium on kaolinite and illite.” MS thesis, The University of Arizona, Tucson, Ariz.
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Received: Dec 20, 2000
Published online: Apr 1, 2001
Published in print: Apr 2001
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