Comparative Study of Chromium(VI) Removal from Simulated Industrial Wastewater with Ion Exchange Resins


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Resumo

Ion exchange process is an alternative technique for removal of heavy metal ions from industrial wastewater. The main aim of this paper is to evaluate the performance of different ion exchange resins in removing Cr(VI) from wastewater. The effects of resin types and dosage, initial pH were examined systemically. The results showed that the performance of different resins had obvious difference for the removal of the Cr(VI) ions, in which the type of functional groups of the resin was the main factor. The SEM images indicated that the micro-morphology of resins before and after adsorption of the Cr(VI) presented a little difference. The EDS analysis showed that the adsorbed Cr(VI) was uniformly distributed at the surface of the resins with formation of oxygen-containing groups. The adsorption isotherms and kinetics of Cr(VI) by the different resins are also discussed.

Sobre autores

Dongyao Xu

College of Chemistry and Environmental Engineering

Email: syshi@ipe.ac.cn
República Popular da China, Beijing, 100083

Xiaofan Li

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering; College of Chemistry and Environmental Engineering

Email: syshi@ipe.ac.cn
República Popular da China, Beijing, 100190; Beijing, 100083

Shaoyuan Shi

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering; University of Chinese Academy of Sciences; Zhengzhou Institute of Emerging Industrial Technology

Autor responsável pela correspondência
Email: syshi@ipe.ac.cn
República Popular da China, Beijing, 100190; Beijing, 100049; Zhengzhou, 450000

Hongbin Cao

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering; University of Chinese Academy of Sciences

Email: syshi@ipe.ac.cn
República Popular da China, Beijing, 100190; Beijing, 100049

Yuping Li

National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Beijing Engineering Research Center of Process Pollution Control, Key Laboratory of Green Process and Engineering, Institute of Process Engineering; University of Chinese Academy of Sciences

Email: syshi@ipe.ac.cn
República Popular da China, Beijing, 100190; Beijing, 100049

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