Fouling of organic fractionation on ultrafiltration membrane for drinking water treatment:a case study
KANG Hua1, HE Wen-jie1,2, LIU Xiu-hong3, WANG Dong4
1.School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.Tianjin WaterWorks Group Company Ltd,Tianjin 300040,China;3.Beijing Drainage Group Co.Ltd,Beijing 100044,China;4.Changchun Water Group Co.Ltd,Changchun 130021,China
Abstract:
The aim of this study was to obtain a better understanding of the range of organic molecular weight(MW)causing membrane fouling through the comparison between direct UF and in-line coagulation(without settling)/UF process.The experimental results indicated that,when raw water with organics was treated and the MW of more than half of the organics was less than 1 kDa,membrane fouling was rather serious by only UF and coagulation could improve the fouling for the treatment of raw water.Besides,coagulation/UF could remove organics in each region,and organics with MW greater than 30 kDa were the most possible matters causing membrane fouling,while organics with MW less than 1 kDa were impossibly responsible for membrane fouling due to few organics removed.Therefore,organics with MW greater than 30 kDa were the major factor of membrane fouling.
Key words: fouling molecular weight distribution organics Ultrafiltration
DOI：10.11916/j.issn.1005-9113.2010.06.015
Clc Number:TU991.2
Fund:
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Fouling of organic fractionation on ultrafiltration membrane for drinking water treatment:a case stu
本站小编 哈尔滨工业大学/2019-10-23
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