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水环境中微生物胞外聚合物(eps)对重金属和富营养元素的环境生物化学效应及其研究展望

DOI: 10.3724/SP.J.1145.2010.00129, PP. 129-134

Keywords: 胞外聚合物,环境生化效应,重金属,富营养元素,微界面

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Abstract:

综述了胞外聚合物(extracellularpolymericsubstance,eps)环境生物化学效应已有的研究成果,阐述了eps对重金属和富营养元素环境生物化学效应的影响过程,指出了研究存在的问题和未来方向.eps作为微生物分泌的产物,不仅对微生物的生存起到至关重要的作用,还对有毒重金属物质和富营养元素的环境生物化学效应影响显著.目前有关eps环境效应的研究主要集中在实验室eps提取、eps凝絮性和eps吸附动力学3个方面,而针对eps与环境重金属和富营养元素的结合状态、eps对重金属行为归宿的影响以及eps与污染元素之间的微界面反应过程研究较少.图1参52

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