【摘要】 微生物产生的胞外聚合物(EPS)是活性污泥生物絮体的主要组成部分,而且不同基质条件会对其产生不同的影响。在活性污泥中,EPS的存在对生物絮凝、沉降及脱水性能等具有重要的影响,在控制和改善污泥处理过程中起着举足轻重的作用;阐述了EPS对膜污染的贡献,及其对金属离子的络合作用。更多还原

【Abstract】 Extra-cellular polymeric substances(EPS),which are secreted by microorganisms during growth,form the main component of activated sludge floc.The different substrate conditions will influence on the formation of EPS.Owing to its dominant effect on the bio-flocculation,settling and dewatering performances of activated sludge,EPS could be some critical factor in sludge handing processes.The contribution of EPS to membrane fouling and the adsorption sites for heavy metal ions was also reviewed in this paper.更多还原