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Influence studies of EDTA on removal of cadmium ions by nanofiltration

Authors： LENG Jing， BAI Ling※， CHANG Juan

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

KeyWords： complexation nanofiltration; EDTA; cadmium ions rejection; pH; permeate flux.

ClassificationCode：TQ028.3;S156.99

year,volume(issue):pagination： 2016,36(4):134-138

Abstract：

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

Funds：

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），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）。

AuthorIntro：

第一作者简介：冷婧（1989-)，女，江西省修水县人，硕士，研究方向为废水处理和资源化；E-mail:13207091459@163.com。 ※为通讯作者， E-mail: lingbb716@163.com。

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