期刊
CHEMICAL ENGINEERING JOURNAL
卷 294, 期 -, 页码 410-416出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2016.02.117
关键词
Ultrafiltration; Bisphenol A; Norfloxacin; Retention
资金
- National Natural Science Foundation of China [41071305]
- Student Research Project of South China University of Technology
- State Key Laboratory of Pollution Control and Resource Reuse [PCRRF14006]
- State Key Lab of Subtropical Building Science, South China University of Technology [2014KB13]
The retention efficiencies of bisphenol A (BPA) and norfloxacin (NOR) by three different ultrafiltration (UF) membranes prepared in laboratory were investigated, together with the influencing factors such as initial concentration, ionic strength, pH, membrane fouling and trans-membrane pressure (TMP). The results show that the effects of initial concentration and ionic strength on retentions is minor for both BPA and NOR. BPA retentions substantially decreased as pH value approached to its pKa value, and for NOR they first increased and decreased afterwards with pH change. The retentions are all improved after HA fouling because of the HA block in the membrane pores and the developed cake layer, and it can be concluded that between pollutants and HA there exists not only adsorption with each other but also competitive adsorption for sites on membranes. The retentions of both BPA and NOR decrease with increasing pressure. Generally, the effects of these factors on BPA and NOR retention are different and the retentions of the three UF membranes for NOR always remain at a low level, which needs further investigation. (C) 2016 Elsevier B.V. All rights reserved.
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