生物过滤氧化反应器中的微生物特性研究  

Study on Characteristic of Microbe on Biological Filtration Oxygenated Reactor

作　　者：郑元梅[1] 李于晓[2] 肖文胜[2] 

机构地区：[1]黄石理工学院医学院,湖北黄石435003 [2]黄石理工学院环境科学与工程学院,湖北黄石435003

出　　处：《环境科学与管理》2009年第7期51-53,共3页Environmental Science and Management

基　　金：湖北省自然基金项目(2007ABA242);湖北省高等学校优秀中青年科技创新团队项目(T200709)资助

摘　　要：采用沿程取样分析的方法,对生物过滤氧化反应器不同位置中的微生物特性进行了研究,结果表明,沿水(气)流方向,陶粒上附着的生物膜与陶粒间的生物絮体的量都是逐渐减少,生物絮体的氧呼吸率也随之下降,但生物膜的氧吸收率没有明显的变化。沿水(气)流方向,生物膜生物活性是逐渐升高的,而生物絮体生物活性总体逐渐下降。对生物膜的活性细菌数目(ABN)分析表明,在反应器内不同位置,异养菌与自养菌数量是交替变化的。在进水端,异养菌占据绝对优势,其数量是自养菌的近1 000倍,随着床层向出水端靠近,异养菌数目减少,自养菌数目增多,在出水端附近,自养菌是异养菌数目的10倍多。Characteristic of microbe on various location of Biological Filtration Oxygenated Reactor was studied alone the height of Reactor. The results indicated that alone direction of waterflow, the number of biofilm and bioflocculate were reduced, OUR of biofilm was not changed, OUR of bioflocculate was reduced. Thus, the active of microbe of biofilm was raised, the active of microbe of bioflocculate was depressed. The analysis of active bacteria number（ABN） of biofilm indicated that the number of the heterotrophic bacteria on the BIOFOR entrance was more than 1000 times compared with autotrophic bacteria on the BIOFOR entrance, the number of the heterotrophic bacteria was reduced and the number of autotrophic bacteria was developed. On the BIOFOR effluent, the number of autotrophic bacteria was more than 10 times compared with the heterotrophic bacteria.

关 键 词：生物过滤氧化反应器 生物膜 生物絮体 异养菌 自养菌数量 

分 类 号：X703.3[环境科学与工程—环境工程]