Characteristics of organic matters of secondary effluent and contributions to membrane fouling

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• Affiliation of Author(s):环境与市政工程学院
• Journal:2013青岛国际脱盐大会
• Key Words:中文关键字：二级出水；膜污染；亲疏水组分；三维荧光光谱，英文关键字：Secondary Effluent; membrane fouling; hydrophobic/
• Abstract:Dissolved organic matters of secondary effluent of urban wastewater were divided into strongly hydrophobic, weakly hydrophobic and hydrophilic fractions. And the effects of the three fractions on ultrafiltration membrane were investigated. The results demonstrated that the membrane fouling caused by dissolved organic matters of effluent was strongly hydrophobic> hydrophilic fractions> weakly hydrophobic. The reasons were that (1) membrane fouling was related with molecular weight. Strongly hydrophobic constituent retained by membrane was due to its higher molecule weight. (2) It can be seen from the three-dimensional fluorescence spectra there were humic acid fluorescence peaks in these three fractions. It indicated that humic acid had the largerest contribution to the reduction of membrane flux. (3) Strongly hydrophobic constituent contained the most complex organic matters, and fluorescence peak was the most obvious. This showed the extent of membrane fouling was related with the kind of organic matters and the content of that. In addition, membrane fouling was closely related with the removal rate of organic matters by membrane. FLU may conduct as an index to show organic matters retained by membrane.
• Note:王旭东
• Co-author:张慧慧,刘佩,曲颖,刘红露
• First Author:wanglei,xudong wang
• Indexed by:Journal paper
• Volume:卷：
• Issue:期：
• Page Number:页：
• Translation or Not:no
• Date of Publication:2013-06-01