文献类型：期刊文献

英文题名：Effect of quaternary ammonium surfactant modification on oil removal capability of polystyrene resin

作者：Zhou, Yanbo[1];Tang, Xuanyi[1];Xu, Yanxiao[1];Lu, Jun[1]

机构：[1]E China Univ Sci & Technol, Coll Resources & Environm Engn, Shanghai 200237, Peoples R China

年份：2010

卷号：75

期号：3

起止页码：266

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20104513361127);WOS:【SCI-EXPANDED(收录号:WOS:000284453700005)】；

基金：The authors are thankful to the financial support provided by Shanghai Municipal Natural Science Foundation (No. 10ZR1408000) and Shanghai Leading Academic Discipline Project (No. B506). We also show great thanks to Dr. Wei-chi Ying for his valuable comments.

语种：英文

外文关键词：Quaternary ammonium surfactant; Emulsion; Oily wastewater; Modified resin; Wettability

摘要：Quaternary ammonium modified resins for emulsified oily wastewater treatment were synthesized from polystyrene resin through ion exchange reaction between sulfonic acid groups and three quaternary ammonium surfactants. The base resin and modified resins were characterized by infrared spectra, zeta potential measurement and capillary rise test (the Washburn method) to evaluate the effect of modification with quaternary ammonium on the surface characteristics of the resin. The surface electrostatic and hydrophobic characteristics of the resin were significantly altered due to grafting hexadecyltrimethylammonium bromide (HTAB), hexadecylpyridinium bromide (HPB) and tetrabutylammonium bromide (TBAB) onto the resin surface. The grafted quaternary ammonium surfactants made the resin more effective for removing oil droplets by coalescence-filtration because of a less negative-charged and more hydrophobic resin surface. In addition, incorporation of a longer alkyl group on resin surface had a more positive effect on its oil removal capability. The resin modified by HTAB demonstrated a better oil removal capability than other modified resins. (C) 2010 Elsevier B.V. All rights reserved.