标题:Understanding the risk of scaling and fouling in hollow fiber forward osmosis membrane application
作者:Majeed, Tahir; Phuntsho, Sherub; Jeong, Sanghyun; Zhao, Yanxia; Gao, Baoyu; Shon, Ho Kyong
通讯作者:Shon, Ho Kyong
作者机构:[Majeed, Tahir; Phuntsho, Sherub; Shon, Ho Kyong] Univ Technol Sydney, Fac Engn & Informat Technol, Sch Civil & Environm Engn, POB 123, Broadway, NSW 更多
会议名称:8th Annual International Conference on Challenges in Environmental Science and Engineering (CESE)
会议日期:SEP 28-OCT 02, 2015
来源:PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
出版年:2016
卷:103
页码:452-464
DOI:10.1016/j.psep.2016.06.023
关键词:Concentration polarization; Water flux; Hollow fiber forward osmosis; membrane; Inorganic scaling; Organic fouling; Cleaning strategy
摘要:Fouling studies of forward osmosis (FO) were mostly conducted based on fouling evaluation principals applied to pressure membrane processes such as reverse osmosis (RO)/nanofiltration (NF)/microfiltration (MF)/ultrafiltration (UF). For RO/NF/MF/UF processes, the single flux driving force (hydraulic pressure) remains constant, thus the fouling effect is easily evaluated by comparing flux data with the baseline. Whilst, the scenario of fouling effects for FO process is entirely different from RO/NF/MF/UF processes. Continuously changing driving force (osmotic pressure difference), the changes in concentration polarization associated with the varying draw solution/feed solution concentration and the fouling layer effects collectively influence the FO flux. Thus, usual comparison of the FO flux outcome with the baseline results cannot exactly indicate the real affect of membrane fouling, rather presents a misleading cumulative effect. This study compares the existing FO fouling technique with an alternate fouling evaluation approach using two FO set-ups. Scaling and fouling risk for hollow fiber FO was separately investigated using synthetic water samples and model organic foulants as alginate, humic acid and bovine serum albumin. Results indicated that FO flux declines up to 5% and 49% in active layer-feed solution and active layer-draw solution orientations respectively. (C) 2016 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
收录类别:CPCI-S;EI;SCOPUS;SCIE
Scopus被引频次:1
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995611061&doi=10.1016%2fj.psep.2016.06.023&partnerID=40&md5=4a868ec1bd5624ce9aaf997614e992dd
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