工业污水回用反渗透处理中的膜污染分析  

Analysis of reverse osmosis membrane fouling in reusing the treated industry sewage

作　　者：刘静 宋杰 田松林 曾兴宇 吴非洋 李雪丽 潘献辉 Liu Jing;Song Jie;Tian Songlin;Zeng Xingyu;Wu Feiyang;Li Xueli;Pan Xianhui(The Institute of Seawater Desalination and Multipurpose Utilization,MNR(Tianjin),Tianjin 300192,China;Shandong Feifan Environmental Consulting Services Limited,Dezhou 253000,China)

机构地区：[1]自然资源部天津海水淡化与综合利用研究所,天津300192 [2]山东非凡环保咨询服务有限公司,德州253000

出　　处：《分析仪器》2023年第3期94-98,共5页Analytical Instrumentation

基　　金：国家科技支撑计划项目(2014BAB06B00);天津市重点研发计划项目(19YFZCSN01330);中央级公益性科研院所基本科研业务费专项资金项目(K-JBYWF-2021-QR05)。

摘　　要：为掌握某化工厂污水回用处理过程中出现的反渗透系统运行不稳定的成因,对进水端首支和浓水端末支膜元件进行物理外观检查和标准性能测试,受测的两支膜元件外观良好,但产水量和脱盐率下降。解剖膜元件发现两支膜表面均附着一层褐色污染物,并伴有腥臭味。利用热重分析仪(TGA)、扫描电镜(SEM)、能谱分析仪(EDAX)和傅里叶红外光谱仪(FTIR)等对污染物进行了成分测试,并对反渗透系统产水和浓水进行了微生物检测。结果表明,受测的两支膜元件主要受微生物污染。In view of the phenomenon of increasing inlet water pressure in the operation of reverse osmosis(RO)system for reusing the treated industry sewage of a chemical plant,physical appearance inspection and standard performance test were carried out on the first membrane of inlet section and the end membrane of concentrated section.There was no obvious physical leakage of the two membranes,but water conductivity and salt rejection were decreased.Through dissection of membrane components,it was found that a layer of brown pollutants was attached to the surfaces of both membranes,accompanied by a foul odor.Thermogravimetric analyzer(TGA),scanning electron microscope(SEM),energy spectrum analyzer(EDAX)and Fourier transform infrared spectrometer(FTIR)were used to test the components of the brown and fishy pollutants.And the produced and concentrated water quality of RO system were investigated.The results showed that the two membrane components tested were mainly contaminated by microorganisms.

关 键 词：工业污水回用 反渗透 膜污染 微生物污染 

分 类 号：X703[环境科学与工程—环境工程]