Preparation of amphiphilic composite and removal of oil and hexavalent chromium from wastewater |
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| Authors: | X Q Liu G Zhang H Q Xing P Huang X L Zhang |
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| Institution: | (1) College of Food Science and Engineering, Jilin Agricultural University, 130118 Changchun, China;(2) Key Laboratory of Automobile Materials of Ministry of Education, College of Materials Science and Engineering, Jilin University, 130012 Changchun, China;(3) College of Quartermaster Technology, Jilin University, 130062 Changchun, China; |
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| Abstract: | A new composite for water treatment was prepared by melt blend for oil and hexavalent chromium absorption. Ethylene Propylene
Diene Monomer (EPDM) was the matrix, calcinatory Fe2O3 and anion-exchange resin 201×7 were the fillers. This composite can suspend in water–oil contact (WOC) and absorb oils and
hexavalent chromium in wastewater simultaneously. The absorbencies of composites changed greatly with various ratios of calcinatory
Fe2O3 and anion-exchange resin 201×7. The results showed that the oil absorbencies increased continuously and hexavalent chromium
absorbencies were step-down as calcinatory Fe2O3 loadings from 13 to 19%. The composite can adsorb oils and hexavalent chromium simultaneously. The optimized proportion of
calcinatory Fe2O3 and anion-exchange resin 201×7 in composite was found when the absorbencies of oils and hexavalent chromium reaching the
maximum simultaneously. This composite is an inexpensive, convenient and high efficiency material for removing oils and hexavalent
chromium from wastewater. |
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