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CLC number: TU991.2

On-line Access: 2010-11-08

Received: 2009-10-10

Revision Accepted: 2010-07-06

Crosschecked: 2010-10-12

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Journal of Zhejiang University SCIENCE A 2010 Vol.11 No.11 P.868-878

10.1631/jzus.A0900606


Removal of sulfamethoxazole by nanofiltration membrane


Author(s):  Su-hua Wu, Hua-qiang Chu, Bing-zhi Dong, Jun-ru Zhou, Yu Huang

Affiliation(s):  School of Environmental Science and Engineering, Tongji University, Shanghai 200092, China, Shanghai Purge Filtration Technology Co., Ltd., Shanghai 200444, China

Corresponding email(s):   wusuhua@inbox.com, chq123zl@hotmail.com

Key Words:  Pharmaceutically active compounds (PhACs), Nanofiltration (NF) membrane, Electronic exclusion, Adsorption, Sulfamethoxazole (SMZ)


Su-hua Wu, Hua-qiang Chu, Bing-zhi Dong, Jun-ru Zhou, Yu Huang. Removal of sulfamethoxazole by nanofiltration membrane[J]. Journal of Zhejiang University Science A, 2010, 11(11): 868-878.

@article{title="Removal of sulfamethoxazole by nanofiltration membrane",
author="Su-hua Wu, Hua-qiang Chu, Bing-zhi Dong, Jun-ru Zhou, Yu Huang",
journal="Journal of Zhejiang University Science A",
volume="11",
number="11",
pages="868-878",
year="2010",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A0900606"
}

%0 Journal Article
%T Removal of sulfamethoxazole by nanofiltration membrane
%A Su-hua Wu
%A Hua-qiang Chu
%A Bing-zhi Dong
%A Jun-ru Zhou
%A Yu Huang
%J Journal of Zhejiang University SCIENCE A
%V 11
%N 11
%P 868-878
%@ 1673-565X
%D 2010
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A0900606

TY - JOUR
T1 - Removal of sulfamethoxazole by nanofiltration membrane
A1 - Su-hua Wu
A1 - Hua-qiang Chu
A1 - Bing-zhi Dong
A1 - Jun-ru Zhou
A1 - Yu Huang
J0 - Journal of Zhejiang University Science A
VL - 11
IS - 11
SP - 868
EP - 878
%@ 1673-565X
Y1 - 2010
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A0900606


Abstract: 
The retention of sulfamethoxazole (SMZ) by nanofiltration (NF) membranes is strongly influenced by the pH value of the solution. The retention of SMZ reaches its peak value when the solution pH rises above its pKa2 value as the compound transforms into a negatively charged species. Charge repulsion is the main mechanism involved in SMZ removal by NF membranes. In this study, the removal of SMZ by NF membranes, as a function of solution chemistry, was examined at pH 8.9 to investigate the effect of solution conditions on charge repulsion. The results show that the retention of negatively charged SMZ is relatively independent of SMZ concentration, and an increase in the ionic strength of the solution causes a relatively small reduction in retention. A small effect of humic acid (HA) on SMZ retention was noticed at pH 8.9, which can be explained by a small but insignificant improvement in the zeta potential of the membrane caused by HA at high pH values. However, it was found that SMZ concentration in the feed decreased significantly in solutions containing tannic acid (TA). The Adams-Bohart model was applied to our experimental data and was found to be suitable for describing the initial part of the breakthrough curves. The adsorptive parameters of the membrane were determined.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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