制备高通量、抗污染PDA/PEI纳米颗粒膜用于农村含油生活污水处理  

Preparation of High Flux and Antifouling PDA/PEI Nanoparticle Membrane for Oil-Bearing Rural Domestic Wastewater Treatment

作　　者：贺斌 马宇 高芳 赵晓丽[3] HE Bin;MA Yu;GAO Fang;ZHAO Xiaoli(Institute of Eco-Environmental and Soil Sciences,Guangdong Academy of Sciences(GIESS),Guangzhou 510650,China;Guangdong University of Technology,Guangzhou 511459,China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]广东省科学院生态环境与土壤研究所,广东广州510650 [2]广东工业大学,广东广州511459 [3]中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012

出　　处：《环境科学研究》2022年第7期1547-1555,共9页Research of Environmental Sciences

基　　金：中国博士后科学基金(No.2021M700889);国家自然科学基金项目(No.42177065);广东省重点领域研发计划项目(No.2020B1111530001)。

摘　　要：水处理分离膜具有纳米尺度筛分孔道,虽适合分散式处理农村生活污水中油水乳化液,但膜污染严重,导致膜通量较低.因此,设计抗污染、高通量水处理分离膜可实现农村含油生活污水高效处理.本文采用真空辅助自组装技术,在高分子膜表面及内部负载聚多巴胺(PDA)/聚乙烯亚胺(PEI)纳米颗粒,制备了PDA-NP膜.由于纳米颗粒含有丰富的亲水基团,改性后膜纯水通量及农村含油生活污水通量恢复率分别高达(741.23±17) L/(m^(2)·h)及99.4%,实现了高通量、抗污染目标;另外,对农村含油生活污水TOC的去除率达45.12%,具有较强的实际意义.Water treatment separation membrane has nano-scale screening channels,which is suitable for decentralized treatment of oil-water emulsion in rural domestic sewage,but the membrane fouling is serious and energy consumption is high.Therefore,the design of anti-fouling and high flux water treatment separation membrane can achieve efficient treatment of oil-bearing domestic sewage in rural areas.In this study,PDA-NP films were prepared by vacuum-assisted self-assembly technology,and polydopamine(PDA)/polyethylene imine(PEI)nanoparticles were loaded on the surface and inside of polymer films.Because the nanoparticles contain rich hydrophilic groups,the recovery rate of pure water flux and rural oil-bearing domestic sewage flux is as high as(741.23±17)L/(m^(2)·h)and 99.4%,respectively after modification,achieving the goals of high flux and anti-fouling.In addition,TOC removal rate of oil-bearing rural domestic sewage reached 45.12%,which has strong practical significance.

关 键 词：聚多巴胺(PDA) 纳米颗粒 抗污染 高通量 农村含油生活污水 

分 类 号：X703[环境科学与工程—环境工程]