大肠杆菌释磷与聚磷特性研究  

Characteristic Research of Releasing and Accumulating Phosphorus by Escherichia

作　　者：吕婧[1] 袁林江[1] 韩玮[1] 鞠静春[2] 陈伟强 

机构地区：[1]西安建筑科技大学环境与市政学院,陕西西安710055 [2]西安微电子技术研究所,陕西西安710054 [3]陕西省大荔县环境监测站,陕西大荔715100

出　　处：《水资源与水工程学报》2009年第2期36-39,51,共5页Journal of Water Resources and Water Engineering

基　　金：国家自然科学基金项目(50878180;50008014)

摘　　要：通过对分离得到的大肠杆菌在供给了不同浓度磷以及不同VFA混合碳源下其释磷与聚磷特性的研究,探讨了环境对纯种聚磷菌的磷代谢影响。结果表明,只有当供给的磷和VFA混合碳源达到一定配比且条件适合时,大肠杆菌才能表现出典型的厌氧释磷、好氧吸磷特性。传统方法分离出来的聚磷菌之所以表现出非生物强化吸磷特性,原因是没有给其提供适宜表现生物强化吸磷特性的环境。Under different concentrations of phosphorus and VFA mixture supplied,the characteristic of phosphorus released and phosphorus accumulated for escherichia and the effect of conditions on phosphorus metabolism of pure PAOs were discussed. Results show that a typical characteristic of phosphorus released in anaerobic and phosphorus accumulated in aerobic by eseherichia, when the concentrations of phosphorus and VFA mixture supplied are up to a certain ratio. It is implied that the reason why PAOs isolated by traditional methods don＇t show the ability of accumulating phosphorus is due to the inappropriate conditions of substrates supplied.

关 键 词：生物强化除磷 聚磷菌 大肠杆菌 

分 类 号：X703[环境科学与工程—环境工程]