期刊
JOURNAL OF MEMBRANE SCIENCE
卷 362, 期 1-2, 页码 279-288出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2010.06.038
关键词
Desalination; Fouling potential; Multiple membrane array system (MMAS); Reverse osmosis (RO); Modified fouling index
资金
- Ministry of Land, Transport and Maritime Affairs (MLTM)
- Korea Agency for Infrastructure Technology Advancement (KAIA) [44692] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A new approach to evaluate the fouling potential of feed waters for reverse osmosis (RO) and nanofiltration (NF) practices was systematically investigated A multiple membrane array system (MMAS) was developed, in which microfiltration (MF), ultrafiltration (UF), and nanofiltration (NF) membranes were connected in series This system was designed to separate the target foulants in the feed water and evaluate the fouling potential of a targeted foulant. More specifically, particulate, colloids, and organic matters were separated by MF. UF. and NF membranes in a consecutive manner, and the modified fouling index (MFI) was measured during each separation The resulting three MFI values are Particle-MFI Colloid-MFI. and Organic-MFI, and presented schematically in a triangle manner The results demonstrated that fouling potentials of various feed waters (e g, seawaters pretreated by various pretreatment options as well as raw seawater) evaluated by the MMAS were much more accurate and informative compared to those predicted by conventional silt density index (SDI) and single MFI The fouling potentials determined by the MMAS precisely reflected changes in feed water quality by different pretreatment options (i e, sand filtration. microfiltration, and ultrafiltration), while SDI measurements were not sensitive enough to detect these variations It was also shown that the fouling potentials evaluated by the MMAS were well correlated with the actual flux-decline rates determined by lab-scale RO fouling experiments simulating seawater desalination, suggesting that the MMAS could provide a better way to predict fouling potential and guidance to select proper pretreatment processes (C) 2010 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