Removal of Ni（ll） ions from wastewater by micellar enhanced ultrafiltration using mixed surfactants  

作　　者：Amar D. Vibhandik Kumudini V. Marathe 

机构地区：[1]Department of Chemical Engineering, Institute of Chemical Technology, Mumbai 400019, India

出　　处：《Frontiers of Chemical Science and Engineering》2014年第1期79-86,共8页化学科学与工程前沿（英文版）

摘　　要：Ni（II） ions were removed from aqueous waste using micellar enhanced ultrafiltration （MEUF） with a mixture of surfactants. The surfactant mixture was the nonionic surfactant Tween 80 （TW80） mixed with the anionic surfactant sodium dodecyl sulfate （SDS） in different molar ratios ranging from 0.1-1.5. The opera- tional variables of the MEUF process such as pH, applied pressure, surfactant to metal ion ratio and nonionic to ionic surfactant molar ratio （α） were evaluated. Rejection of Ni and TW80 was 99% and 98% respectively whereas that for SDS was 65%. The flux and all resistances （fouling resistance, resistance due to concentration polarization） were measured and calculated for entire range of α respectively. A calculated flux was found to be declined with time, which was mainly attributed to concentration polarization rather than resistance from membrane fouling.Ni（II） ions were removed from aqueous waste using micellar enhanced ultrafiltration （MEUF） with a mixture of surfactants. The surfactant mixture was the nonionic surfactant Tween 80 （TW80） mixed with the anionic surfactant sodium dodecyl sulfate （SDS） in different molar ratios ranging from 0.1-1.5. The opera- tional variables of the MEUF process such as pH, applied pressure, surfactant to metal ion ratio and nonionic to ionic surfactant molar ratio （α） were evaluated. Rejection of Ni and TW80 was 99% and 98% respectively whereas that for SDS was 65%. The flux and all resistances （fouling resistance, resistance due to concentration polarization） were measured and calculated for entire range of α respectively. A calculated flux was found to be declined with time, which was mainly attributed to concentration polarization rather than resistance from membrane fouling.

关 键 词：MEUF Ni （II） ions membrane resistance concentration polarization mixed surfactants 

分 类 号：TQ423.11[化学工程] X703.1[环境科学与工程—环境工程]