生物粉末活性炭-超滤处理饮用水膜污染分析  

Membrane Fouling Analysis of BPAC-UF in Drinking Water Treatment

作　　者：刘彦志 纪瑶瑶 王子岩 邓慧萍[1] 史俊[1] LIU Yanzhi;JI Yaoyao;WANG Ziyan;DENG Huiping;SHI Jun(College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China)

机构地区：[1]同济大学环境科学与工程学院,上海200092

出　　处：《水处理技术》2019年第1期81-84,共4页Technology of Water Treatment

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07405-002)

摘　　要：对生物粉末活性炭-超滤(BPAC-UF)工艺处理地表饮用水的膜污染情况进行了研究。TMP分析表明,普通的水力反冲洗很难将吸附在膜表面的粉末活性炭冲洗掉,但经过物理强化反冲洗后TMP可以得到较好的恢复,增加NaClO维护性化学清洗后,可以很好的降低超滤膜TMP的增长速度。膜污染物质分析表明,物理反冲洗主要去除亲小分子亲水性的有机物膜污染;化学清洗主要去除疏水性的大分子腐殖质类物质。能谱分析结果说明,膜面主要污染元素是C、O,另有一些无机离子。智能傅立叶红外光谱仪分析表明,化学清洗对膜面官能团的种类没有影响,但会影响不同官能团的光谱透射比强度,从而改变了其表面性质。The membrane fouling situation of BPAC-UF process for surface drinking water treatment was studied. TMP analysis showed that, general hydraulic backwashing could not removal the powdered activated carbon on the membrane surface, but TMP recovered well after physical enhanced backwashing. The growth rate of UF membrane TMP decreased well when chemical cleaning with NaClO was used. Membrane pollutant analysis showed that, hydraulic back wash could mainly remove hydrophilic organic pollutant, and chemical back wash could mainly remove hydrophobic humic substances. The result of EDS showed that the main elements resulting in membrane fouling were carbon, oxygen and other inorganic ions. The result of ATR-FTIR showed chemical back wash could barely change the category of functional groups on membrane, but it could change the luminousness of different functional groups to change the chemical property of membrane.

关 键 词：生物活性炭 超滤 膜污染 膜清洗 

分 类 号：TQ028.8[化学工程] TU991.2[建筑科学—市政工程]