4.7 Article

Impact of sodium hypochlorite (NaClO) on polysulfone (PSF) ultrafiltration membranes: The evolution of membrane performance and fouling behavior

期刊

SEPARATION AND PURIFICATION TECHNOLOGY
卷 175, 期 -, 页码 238-247

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.seppur.2016.11.037

关键词

Ultrafiltration membrane; Chemical ageing; Membrane performance; Critical operating condition

资金

  1. National Natural Science Foundation of China [51578374, 51378349]

向作者/读者索取更多资源

This paper presents a study on the impact of sodium hypochlorite (NaClO) on the performance and fouling behavior of polysulfone (PSF) membranes. The performance of aged PSF membranes was studied under different transmembrane pressures (TMPs), and three critical TMPs including the pressure corresponding to critical flux (P-C), the pressure corresponding to critical filtration efficiency (P-V), and the pressure corresponding to the greatest retention ability (P-R) were innovatively proposed. In terms of an aged membrane, the filtration efficiency (eta(v)) and retention ability (R) were decreased, while, the enhanced sieving capacity (eta(s)) were experimentally proved. These are strongly related to modified surface properties and enlarged pore diameters of aged PSF membranes. The fitting results of Hermia's model and critical flux analysis mutually verified that the formation of cake layer fouling on an aged PSF membrane surface was delayed. However, the specific fouling results indicated the aged membrane suffered a more severe pore block fouling. Moreover, the target plot also implied that the critical parameters (P-C, P-V and P-R) can serve as indicators of the evolution of membrane performance and fouling behaviors. (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。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据