Improved fouling resistance for RO membranes by a surface modification method

被引：10
|
作者：
Park, Hee Min [1 ]
Yoo, Jin [2 ]
Lee, Yong Taek [1 ]
机构：
[1] Kyung Hee Univ, Coll Engn, Dept Chem Engn, Namyangju Si 446701, Gyeonggi Do, South Korea
[2] Samyang Corp, Chem R&D Ctr, Tech Ctr, Daedeok Daero 730, Daejeon 34055, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2019年 / 76卷
关键词：
Polyamide; Reverse osmosis membrane; Surface modification; Silane coupling agents; Fouling resistance; REVERSE-OSMOSIS MEMBRANES; SILANE COUPLING AGENTS; ULTRAFILTRATION MEMBRANES; POLYAMIDE RO; GRAPHENE; PERFORMANCE; CHEMISTRY; LAYER;
D O I：
10.1016/j.jiec.2019.03.059
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We investigated the surface modification of reverse osmosis (RO) membranes to enhance fouling resistance. RO membranes were modified via a sol-gel process using aminopropyltrimethoxysilane (APTMS), chlorotrimethoxysilane (CTMS) and mercaptopropyltrimethoxysilane (MPTMS). The fouling test showed that the flux of the pristine decreased continuously from 52.3 to 20 GFD, whereas APTMS-RO, CTMS-RO and MPTMS-RO were maintained about 37, 25, and 13 GFD, respectively. Salt rejection was maintained over 97.4%. The FRR values of pristine, APTMS-RO, CTMS-RO, and MPTMS-RO were 75.5, 98, 92.2, 88.3%, after chemical cleaning process. As a result, the modified RO membranes have excellent antifouling properties after 3-cycles chemical cleaning. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：344 / 354
页数：11
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