丝状菌污泥膨胀中优势菌种生理学特性及菌群调控方法研究

项目名称： 丝状菌污泥膨胀中优势菌种生理学特性及菌群调控方法研究

项目编号： No.51478012

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 其他

项目作者： 高春娣

作者单位： 北京工业大学

项目金额： 80万元

中文摘要： 活性污泥法处理工艺中，由M.parvicella、H.hydrossis和Type 0092为代表的优势丝状菌引起的污泥膨胀问题经常出现。然而国内外针对这些丝状菌的形态与发生、生长与繁殖、代谢与调控等作用机理的研究甚少，且国内相关领域的研究远落后于国外进展水平。本项目将专门针对当前此领域存在的问题与不足展开研究，选择最常出现的M.parvicella、H.hydrossis及Type 0092等优势丝状菌为研究对象，借助于FISH及PCR等分子生物学技术系统地研究其生长机理、生理学习性，补充和完善相关菌群发育树；研究污水处理过程中特定优势丝状菌对有机底物代谢利用特性、中间产物单独及协同对其生理特性的影响效果及作用机理；在此基础上，重点考察优势丝状菌的微生物生理学特性与污水处理环境因素的相互作用机制，研究菌群调节的有效方法，完善相关的污泥膨胀理论，实现对丝状菌污泥膨胀的防治。

中文关键词： 丝状菌；优势菌种；微生物生理学；污泥膨胀；调控

英文摘要： Sludge bulking caused by M.parvicella ,H. Hydrossis, Type 0092 and other filamentous bacteria occurs in active sludge process frequently.However, there are few research about their morphology and physiology characteristic,growth and reproduction mechanism, metabolism and microbial remedial methods, both in China and abroad.Relevant research in China lags far behind that in foreign countries particularly.To solve existing deficiency and problems in this research field, growth mechanism and physiology characteristic of M.parvicella ,H. Hydrossis, Type 0092 and other dominant filamentous bacteria will be investigated systematically by fluorescence in situ hybridization (FISH), polymerase chain reaction (PCR) and other molecular biological technology, then the phylogenetic tree will be supplemented and improved.Meanwhile,their metabolic utilization characteristics of organic substrates will be investigated in biological nutrient removal process.Furthermore, individual and synergistic effect and mechanism of those intermediates on the dominant filamentous bacteria will be investigated deeply.Based on the preliminary work,the research will emphasis on the interaction mechanism of ecological physiology characteristics of dominant filamentous bacteria and environmental factors in sewage treatment to adjust the effective regulation methods, improve the relevant theory of sludge bulking, and achieve the filamentous sludge bulking control.

英文关键词： filamentous bacteria;dominant bacteria;microbial physiology;sludge bulking;regulation