膜生物反应器异养硝化菌的分离及硝化特性  

Isolation of heterotrophic nitrification bacteria and nitrifying character of membrane bioreactor

作　　者：林燕[1] 孔海南[1] 何义亮[1] 李春杰[1] 严立[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《中国环境科学》2005年第4期394-398,共5页China Environmental Science

基　　金：国家自然科学基金资助项目(20176027)

摘　　要：对具有80%的同步硝化反硝化(SND)效果的MBR系统中存在的异养硝化菌进行了分离培养,并对其硝化特性进行了研究.结果表明,采用将传统微生物学方法与现代分子生物学手段相结合的新型异养硝化细菌的分离筛选方法,分离出的3株细菌可以充分利用有机碳进行有氧呼吸,具有异养生物的性质,且具有产生NOx-的硝化性能.经21d好氧培养后,系统中B1、B2、B33株细菌对COD的去除率分别为52.58%,71.72%,和77.74%;总氮去除率分别为35.6%,61.2%及68.7%.The heterotrophic nitrification bacteria existed in MBR system possessing SND effect of 80% was isolated and cultured; and its mortifying characteristic was studied. 3 bacteria strains isolated adopting new type heterotrophic nitrification bacteria isolating screening technique of combining the traditional microbiological method with the modem molecular biological means could utilize fully organic carbon for oxygen breath, possessed properties of heterotrophic organism and also the nitrification function of producing NOx%-, After did 21 days culture the removal rates of COD by three strains Bl, B2, B3 were 52.58%, 71.72%, and 77.74%, respectively; and the removal rates of total nitrogen were 35.6%, 61.2% and 68.7%, respectively.

关 键 词：同步硝化反硝化 异养硝化 膜生物反应器 硝化特性 

分 类 号：X703.1[环境科学与工程—环境工程]