期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 26, 期 33, 页码 34197-34204出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-018-3829-6
关键词
Nanofiltration; Negative charge density; Sodium 4-styrenesulfonate; Nitrate rejection rate; Membrane permeate flux
资金
- National Natural Science Foundation of China [51578329, 51778352]
- Science and Technology Commission of Shanghai Municipality [16010500200, 18230710900]
- Program for Innovative Research Team in University [IRT13078]
A commercial nanofiltration (NF) membrane was modified using poly(sodium 4-styrenesulfonate) (PSS) to improve the nitrate rejection from groundwater. Fourier transform infrared spectroscopy, thermogravimetric analysis, zeta potential, and water contact angle analyses were performed, showing that PSS was successfully coated onto the membrane with the surface negative charge density being enhanced. The results of nitrate removal tests showed that the best PSS concentration was 1.5 mg/L, with the nitrate rejection rate of 88.8% and the permeate flux of 27.0 L/m(2) h. The effect of initial nitrate concentration and solution pH on the nitrate removal performance of the modified NF membrane was investigated. The results indicate that the modified NF membrane can improve nitrate removal from actual groundwater, with little membrane permeate flux loss.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据