Chrome Removal from the Water Sample by Macromolecule Heavy Metal Flocculant CSAX

Shening Wang, Q. Chang, C. Gao
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Abstract

The present paper deals with the efficiency of a novel macromolecule flocculant crosslinked starch-graft-polyacrylamide-co-sodium xanthate (CSAX) to remove Cr(VI) from water sample of a water plant. The results showed that the CSAX (1.0 mg/L) is capable of removing up to 85.4% of Cr(VI) from water sample having low initial concentration (0.221 mg/L) under the optimum conditions. The water treated satisfied the provisional guideline of 50 μg/L for Cr(VI) in drinking water established by the World Health Organization (WHO).
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高分子重金属絮凝剂CSAX去除水样中铬的研究
本文研究了一种新型高分子絮凝剂——交联淀粉-接枝聚丙烯酰胺-共黄药钠(CSAX)对水厂水样中铬(VI)的去除效果。结果表明,在最佳条件下,CSAX (1.0 mg/L)对初始浓度较低的水样(0.221 mg/L)的Cr(VI)去除率可达85.4%。处理后的水满足世界卫生组织(WHO)制定的饮用水中Cr(VI)含量50 μg/L的临时指标。
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