REMOVAL OF HAZARDOUS HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING DIVINYL BENZENE COPOLYMER RESIN

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BAJPAI S.; DEY A.; JHA M.K.; GUPTA S.K.; GUPTA A.

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Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2012 | Volume:9 | Issue:4 Page(s): 683-690

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Title

REMOVAL OF HAZARDOUS HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING DIVINYL BENZENE COPOLYMER RESIN

Author(s)

Keywords

ADSORPTION

ENVIRONMENT

HEAVY METAL

ION EXCHANGE RESIN

WASTE WATER

Abstract

This paper presents the removal study of hazardous hexavalent chromium from liquid waste streams using divinylbenzene copolymer resin Amberlite IRA 96. Important sorption parameters such as contact time, pH, resin dosage and initial metal concentration were studied at 30°C. The kinetic study was conducted using pseudo first and pseudo second order kinetics at 30°C. The sorption process was found to be pH dependent. Maximum removal was obtained at pH 2 under optimized conditions. The sorption process was rapid and 99% of the removal was achieved in first 30 min. The equilibrium data were fitted to both Langmuir and Freundlich models. The better regression coefficient (R2) in Freundlich model suggests the multilayer sorption process. The value of Gibbs free energy for sorption process was found to be (-12.394 kJmol-1). The negative value indicated the spontaneity of the sorption process. SEM and EDX studies were conducted to find the role of surface morphology during sorption process. The FTIR study was conducted to identify the functional groups responsible for interaction between the resin and chromium. Desorption and Regeneration studies also carried out.

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APA: Copy

BAJPAI, S., DEY, A., JHA, M.K., GUPTA, S.K., & GUPTA, A.. (2012). REMOVAL OF HAZARDOUS HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING DIVINYL BENZENE COPOLYMER RESIN. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 9(4), 683-690. SID. https://sid.ir/paper/285413/en

Vancouver: Copy

BAJPAI S., DEY A., JHA M.K., GUPTA S.K., GUPTA A.. REMOVAL OF HAZARDOUS HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING DIVINYL BENZENE COPOLYMER RESIN. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2012;9(4):683-690. Available from: https://sid.ir/paper/285413/en

IEEE: Copy

S. BAJPAI, A. DEY, M.K. JHA, S.K. GUPTA, and A. GUPTA, “REMOVAL OF HAZARDOUS HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION USING DIVINYL BENZENE COPOLYMER RESIN,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 9, no. 4, pp. 683–690, 2012, [Online]. Available: https://sid.ir/paper/285413/en

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