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Influence studies of EDTA on removal of lead and copper mixed ions by nanofiltration

Authors： BAI Ling* LENG Jing CHANG Juan

Units： College of Natural Science,Jiangxi Agricultural University, Nanchang 330045,China

KeyWords： complexation nanofiltration; EDTA; rejection of lead and copper mixed ions; pH; permeate flux

ClassificationCode：TQ028.3;S156.99

year,volume(issue):pagination： 2016,36(6):119-125

Abstract：

Ethylene diamine tetraacetic acid(EDTA) was chosen as the complexing agent to study the enhanced effects of nanofiltration for the removal of lead and copper mixed ions from soil acidic leachate. The effects of pH , concentration of EDTA and applied pressure on ions rejection were examined in complexation nanofiltration, and simultaneously its process conditions were optimized by orthogonal experimental design. The results show that the lead and copper mixed ions rejection and the permeate flux increase obviously with the present of EDTA in nanofiltration process. In addition, this paper obtains the best operating conditions of complexation nanofiltration for removal of lead and copper mixed ions.

Funds：

基金项目：江西省普通本科高校中青年教师发展计划访问学者专项资金（赣教高函[2014]15号）；江西省环境保护科研项目（JXHBKJ2013-4）；江西省教育厅科技研究项目（GJJ14289）。

AuthorIntro：

作者简介：白玲，女，(1964 -),博士，教授,研究方向为废水处理和资源化, E-mail: lingbb716@163.com。

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