环境工程学报2012，Vol.6Issue(5)：1413-1418,6.
PVDF/PMMA与PVDF/TPU共混膜抗污染性能研究及应用
Study on anti-fouling properties and application of PVDF/PMMA and PVDF/TPU blend membranes
摘要
Abstract
SEM morphologies for novel five-bore PVDF blend modified membranes were observed.The critical fluxes of PVDF/PMMA and PVDF/TPU blend membranes were measured by the flux-step method.The filtration experiments at sub-critical flux and super-critical flux were performed.Then tubular membrane module A（PVDF/PMMA） and B（PVDF/TPU） were used to treat surface water.The results indicated that the PVDF blend modified membranes possessed excellent microstructure and the microstructure of membrane module B was better.The critical fluxes of two membrane modules were 12 L/（m2·h） and 10 L/（m2·h）,respectively.The anti-fouling properties of membrane module B were better than those of membrane module A.The operating characteristic under sub-critical flux was more stable than that of super-critical flux.Two membrane modules were used to treat surface water under sub-critical flux and the effects of those with coagulation as pretreatment were studied.The results showed that the wastewater treatment performance of coagulation-ultrafiltration combination process was better than that of ultrafiltration alone process,and the wastewater treatment performance of membrane module B was better than that of membrane module A.关键词
共混膜/临界通量/过滤实验/抗污染性能/地表水处理Key words
blend membrane/critical flux/filtration experiment/anti-fouling property/surface water treatment分类
资源环境引用本文复制引用
黄健平,邵玉敏,刘纳,刘莉莉,奚旦立..PVDF/PMMA与PVDF/TPU共混膜抗污染性能研究及应用[J].环境工程学报,2012,6(5):1413-1418,6.基金项目
国家“水体污染控制与治理”科技重大专项 （）
中国博士后科学基金资助项目 （）
