乙酸盐碳源生物除磷系统的影响因素研究  

Study on Influencing Factors of Biological Phosphorus Removal with Sodium Acetate as Carbon Source

作　　者：刘亚男[1] 薛罡[1] 于水利[2] 赵方波 郭思远[2] 

机构地区：[1]东华大学环境科学与工程学院,上海200051 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《中国给水排水》2006年第13期6-9,共4页China Water & Wastewater

基　　金：霍英东基金优选资助课题(94004);上海市自然科学基金资助项目(04ZR14010);北京市水质科学与水环境恢复工程重点实验室开放基金资助项目

摘　　要：以实际污水厂的水质为原型即在COD为限制因素的条件下,选择乙酸钠作碳源,在实验室规模的序批式反应器(SBR)中研究了进水pH与生物除磷的关系。结果表明,在COD为限制因素的条件下,pH值为7.2时的除磷效果最好;COD/P值越小则聚磷菌在污泥系统中所占的比例越大;低COD/P值下的出水磷浓度、污泥的磷含量和厌氧条件下的COD去除率均较高,但去除单位磷所需的COD量较少,且MLVSS/MLSS值也相对较低。Under the condition of real wastewater from a wastewater treatment plant and COD limitation, selecting sodium acetate as carbon source, the study on the relationship between influent pH and Biological Phosphorus Removal （BPR） was conducted in the lab-scale Sequencing Batch Reactor （SBR）. It is found that the phosphorus removal effect is best at pH 7.2. When COD/P is lower, i.e. under COD-limiting situation, the phosphate accumulating organisms are dominant, and phosphorus concentration in effluent of low-COD/P system is more than that of high-COD/P system, but less COD is required for the same amount of phosphorus removal. At the same time, lower COD/P causes lower MLVSS/MLSS ratio and higher anaerobic COD removal efficiency.

关 键 词：生物除磷 乙酸盐 SBR PH COD/P 

分 类 号：X703[环境科学与工程—环境工程]