环境工程学报2012,Vol.6Issue(2):353-360,8.
纳滤膜技术在地下水除砷应用中的研究进展
Investigation progress of arsenic removal from groundwater by nanofiltration membrane technology
摘要
Abstract
The frequent emergencies of arsenic pollution seriously threatening the water quality and safety of underground drinking water sources,coupling with the improvement of controlling standards for drinking water,have put forward higher requirements for the arsenic removal from drinking water.However,nanofiltration(NF) membrane separation technology provides a new method for arsenic removal.Firstly,the arsenic existing conformation in groundwater,its chemical properties and distributions in groundwater of China were overviewed.Then,NF membrane characteristics and its performances of arsenic removal mechanism were analyzed.The influences by the various factors,including membrane operating factors(operating pressure,recovery rate,the membrane arrangement,etc.) and raw water quality factors(pH,temperature,coexisting ions,organic compounds,arsenic concentration and the valence states of arsenic,etc.),on NF membrane performance,were systematically exposited.In addition,some key issues for arsenic removal by NF,such as raw water pretreatment,membrane concentrated water disposal,and membrane fouling/cleaning,were also discussed.Finally,the current problems of NF application for arsenic removal were summarized,and application research aspects of NF membrane technology for arsenic removal were tentatively proposed.关键词
纳滤膜/地下水/除砷/膜回收率/膜浓水/膜污染/清洗Key words
nanofiltration membrane/groundwater/arsenic removal/membrane recovery rate/membrane concentrated water/membrane fouling/cleaning分类
资源环境引用本文复制引用
席北斗,王晓伟,霍守亮,杨天学,刘文君,李德生,刘鸿亮..纳滤膜技术在地下水除砷应用中的研究进展[J].环境工程学报,2012,6(2):353-360,8.基金项目
国家水体污染控制与治理科技重大专项 ()
国家重点基础研究发展计划项目 ()
国家自然科学基金资助项目 ()
农业科技成果转化资金项目 ()