橡■单宁去除水中有毒重金属离子的研究  

STUDY ON THE REMOVAL OF TOXIC HEAVY METAL IONS FROM WASTEWATER BY TANNINS OF ACORN CUPS

作　　者：李琳[1] 冯易君[1] 谢家理[1] 单书香[1] 

机构地区：[1]四川大学化学系环境教研室

出　　处：《环境工程》1997年第5期14-16,共3页Environmental Engineering

摘　　要：研究了用橡单宁处理Ｐｂ２＋、Ｃｄ２＋、Ｃｒ３＋、Ｚｎ２＋、Ｍｎ２＋、Ｆｅ２＋六种重金属离子的最佳条件。结果表明，在中性或微碱性条件下，几种金属离子的最佳去除率分别可达８０６％、９２２％、８５３％、９１４％、８５０％、８６０％。探讨了橡单宁絮凝的机理。In this paper, the optimum conditions removing toxic heavy metal ions of Pb 2+ ,Cd 2+ ,Cr 3+ ,Zn 2+ ,Mn 2+ and Fe 2+ from wastewater were studied. The results showed that when pH was 5.5-8.5, the removing efficiency was 80 6%,92 2%,85 3%,91 4%,85 0% and 86 0% respectively and also was the removal mechanism discussed in the paper

关 键 词：橡碗单宁 重金属离子 絮凝 废水处理 

分 类 号：X703[环境科学与工程—环境工程]