Aimed at the biological treatment of arsenic removal or reducing the toxicity of arsenic in water ,the arsenic pollution status of water are summarized ,as well as the mechanism and the research progress of microbial treatment of arsenic pollution in water .And especially one kind of autohydrogentrophic arsenic removal technology is mainly introduced .Finally ,the micro-bial arsenic removal technology is prospected .%针对以去除水中砷或降低砷毒性为目标的微生物处理技术，综述了水体砷污染现状、微生物法处理水体砷污染的机理及微生物技术在处理水体砷污染中的应用，并重点介绍了一种氢自养微生物除砷技术，最后对微生物除砷技术进行了展望。
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