| 印染生化尾水反渗透深度处理工艺膜污染成因分析 |
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| 引用本文： | 李丽,杨成,龙超.印染生化尾水反渗透深度处理工艺膜污染成因分析[J].环境污染治理技术与设备,2014(1):77-81. |
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| 作者姓名： | 李丽 杨成 龙超 |
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| 作者单位： | 污染控制与资源化研究国家重点实验室,南京大学环境学院,南京210023 |
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| 基金项目： | 国家“水体污染控制与治理”科技重大专项（2012ZX07101.003）;教育部新世纪优秀人才支持计划项目（NCET-11-0230） |
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| 摘 要： | 为阐明印染生化尾水反渗透膜处理时膜污染的成因，使用小试装置进行40h膜污染实验，研究膜污染速率、污染程度以及可逆性，同时应用扫描电子显微镜一EDS能谱仪、傅里叶变换红外光谱仪、电感耦合等离子发射光谱仪、总有机碳测定仪等仪器对进水水质、膜表面污染物的形态和组成等进行表征。结果表明，膜表面主要是碳酸钙无机污染和钙与有机物络合污染，无机污染占主导，且可逆性差，有机污染物主要含有--OH和～c-c官能团；单一去除废水中有机物污染物（TOC去除率达88％）对膜污染缓解不明显，但钙离子的去除可显著缓解膜污染，膜通量可增加72．6％；同时去除有机物和钙离子，膜通量可增加80．4％。
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| 关 键 词： | 印染废水 反渗透 膜污染 预处理 |
Analysis of membrane fouling causes in RO process for advanced treatment of dyeing secondary effluent |
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| Li Li Yang Cheng Long Chao.Analysis of membrane fouling causes in RO process for advanced treatment of dyeing secondary effluent[J].Techniques and Equipment for Environmental Pollution Control,2014(1):77-81. |
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| Authors: | Li Li Yang Cheng Long Chao |
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| Institution: | Li Li Yang Cheng Long Chao (State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023 ,China) |
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| Abstract: | In this study, fouling behaviors （the rate, extent of flux decline and fouling reversibibty） ot a bench-scale cross-flow RO membrane fed with dyeing secondary effluent were studied under fixed operational conditions. Feed water quality and membrane layer characteristics were investigated using SEM-EDS, AFR-FT- IR, ICP-AES, and TOC analysis methods, respectively. The results showed that inorganic precipitation of calci- um carbonate together with organic fouling were primarily responsible for the irreversible flux loss. DOC removal of 88% did not reduce obviously membrane fouling. However, removal of calcium ion could increase membrane flux by 72.6% ; the flux increased by 80.4% when DOC was further removed. |
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| Keywords: | dyeing wastewater reverse osmosis membrane membrane fouling pretreatment methods |
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