文献类型：期刊文献

英文题名：Feasibility of using an innovative PVDF MF membrane prior to RO for reuse of a secondary municipal effluent

作者：Xiao, Y.[1];Liu, X. D.[2];Wang, D. X.[3];Lin, Y. K.[3];Han, Y. P.[4];Wang, X. L.[1]

第一作者：Xiao, Y.

通讯作者：Wang, XL[1]

机构：[1]Tsinghua Univ, Beijing Key Lab Membrane Mat & Engn, Dept Chem Engn, Beijing 100084, Peoples R China;[2]Water Affairs Haidian Dist, Beijing 100089, Peoples R China;[3]Beijing Scinor Membrane Technol Co Ltd, Beijing 100083, Peoples R China;[4]Beijing Union Univ, Biochem Engn Coll, Beijing 100023, Peoples R China

第一机构：Tsinghua Univ, Beijing Key Lab Membrane Mat & Engn, Dept Chem Engn, Beijing 100084, Peoples R China

通讯机构：[1]corresponding author), Tsinghua Univ, Beijing Key Lab Membrane Mat & Engn, Dept Chem Engn, Beijing 100084, Peoples R China.

年份：2013

卷号：311

起止页码：16-23

外文期刊名：DESALINATION

收录：;EI(收录号：20125215848944);Scopus(收录号：2-s2.0-84871483212);WOS:【SCI-EXPANDED(收录号:WOS:000315012500002)】；

基金：This work was supported by the National High Technology Research and Development Program of China (2009AA062901), the National Basic Research Program of China (2009CB623401), and the Beijing Natural Science Foundation (2100001).

语种：英文

外文关键词：Microfiltration; PVDF membrane; Reuse; Reverse osmosis; Secondary municipal effluent

摘要：The use of microfiltration (MF) or ultrafiltration (UF) prior to reverse osmosis (RO) process for reuse of reclaimed water is becoming increasingly attractive. In this work, a secondary municipal effluent was treated by a pilot-scale continuous filtration system with an innovative polyvinylidene fluoride (PVDF) MF membrane prepared via thermally induced phase separation (TIPS) method. The study showed that the MF system was operated under low normalized trans-membrane pressure (substantially below 40 kPa) and high permeate flux (52-60 L/m(2)/h). The MF system was able to treat the secondary effluent of unstable quality with good system stability. The membrane's permeability was easily recovered by chemical enhanced backwash (CEB) at a low effective chorine concentration (300 or 500 mg/L). The membrane exhibited excellent mechanical strength and strong chemical resistance throughout the investigation. The treated water from the MF system exhibited stable quality with turbidity less than 0.05 NTU, 15-minute silt density index (SDI15) less than 3 and chemical oxygen demand (CODcr) less than 15 mg/L The treated water quality completely met the quality requirement of RO feed water. This work demonstrated the feasibility of using the innovative MF membrane prior to RO for reuse of the secondary municipal effluent. (C) 2012 Elsevier B.V. All rights reserved.