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OALib Journal期刊
ISSN: 2333-9721
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废水处理系统中生物聚集体胞外多聚物研究进展
DOI: 10.3724/SP.J.1145.2012.00338, PP. 338-343
Keywords: 胞外多聚物,生物聚集体,颗粒污泥,废水生物处理,膜生物反应器
Abstract:
胞外多聚物（extracellularpolymericsubstances，eps）是废水生物处理系统中生物聚集体（包括絮体污泥、生物膜、颗粒污泥等）的重要组成部分，直接包裹于微生物细胞壁外，其理化性质及所处的特殊位置决定了它在生物聚集体中的重要作用.综述了eps对废水生物处理系统污泥沉降性能、脱水性以及膜生物反应器膜污染影响的相关研究，分析认为eps组成与结构特性改变污泥表面电位、疏水性等，进而影响污泥沉降与脱水性能、膜污染程度；以好氧颗粒污泥为典型的生物聚集体代表，总结了eps组分含量与分布对颗粒污泥的形成与结构稳定性的影响，并在eps提取方法标准化、现代理化技术与分子生物学技术综合分析等方面进行了展望，进一步的研究有望揭示生物絮凝体形成过程eps的产生与调控机制.表1参48
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