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  4. 高价金属离子对MBR中胞外聚合物影响的研究进展

硅酸盐通报 , 2016, 35(5): 1498-1503.

高价金属离子对MBR中胞外聚合物影响的研究进展

张海丰 1, , 王嘉雍 2, , 于海欢 3,

1.东北电力大学化学工程学院,吉林,132012

2.东北电力大学化学工程学院,吉林,132012

3.东北电力大学化学工程学院,吉林,132012

基金项目:   吉林省科技发展计划项目(20120404,20130206061GX)   国家自然科学基金计划项目(51478093)  

关键词： 膜生物反应器 , 高价金属离子 , 污泥混合液 , 胞外聚合物

Research Progress on the Effect of Multivalent Cations on the Extracellular Polymeric Substances of MBR

Keywords： membrane bioreactor , multivalent cations , sludge mixed liquor , extracellular polymeric substances

膜生物反应器(membrane bioreactor,MBR)作为一种高效的污水处理及回用工艺,比传统的活性污泥法具有更多优势.然而,膜污染问题是限制其广泛应用的主要瓶颈,可导致出水通量下降、跨膜压差增加、洗膜及换膜频繁等.众多研究证实向MBR中投加高价金属离子可有效减缓膜污染,本文首先简述胞外聚合物(extracellularpolymeric substances,EPS)和高价金属离子与污泥混合液间的作用机理,其次,总结常用的三种高价金属离子(钙、铁、铝离子)在污泥混合液中分布规律及其影响.最后对高价金属离子在未来的应用进行展望.

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