Membrane Science and Technology

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Effects of different influencing factors on the removal of trace naproxen from water by nanofiltration membrane separation

Authors： Ge Sijie，Wu Fang，Zhang Liqiu，Feng Li

Units： Beijing Key Lab for Source Control Technology of Water Pollution, Beijing Forestry University, Beijing, 100083

KeyWords： Nanofiltration; Naproxen; pH; Ionic strength; Operating pressure

ClassificationCode：TQ319；X52

year,volume(issue):pagination： 2013, 33(6):92-96

Abstract：

Naproxen, an anti-inflammatory analgesic and detected frequently in aquatic environment, was conducted as a target compound in this study. The effects of different influencing factors including solution pH, ionic strength, humic acid concentration, operating pressure and temperature on the removal of naproxen by nanofiltration membrane separation were investigated in detail. The research results showed that the removal efficiency of naproxen was improved with the increase of solution pH, ionic strength and humic acid concentration. However, the removal efficiency of naproxen decreased with the increasing of operating pressure. The variations of temperature in the range of 16.5 to 36.5℃ did not affect the removal efficiency of naproxen. Under all the experimental conditions, the removal efficiency of naproxen varied from 83.9% to 96.2%, which demonstrated that nanofiltration membrane separation is an effective method for the removal of trace naproxen from drinking water. Electrostatic repulsion and steric exclusion were supposed as the dominant mechanisms for the retention removal of naproxen by nanofiltration membrane separation.

Funds：

国家自然科学基金项目(51178046)

AuthorIntro：

葛四杰(1989-)，男，安徽宿州人，硕士研究生，E-mail:ge_sijie@126.com。主要研究方向为环境污染控制理论与技术 *通讯作者：封莉，女，副教授，硕士生导师，E-mail:fengli_hit@163.com，北京市海淀区清华东路35号北京林业大学环境科学与工程学院主楼227室，100083；

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