一种高浓度微生物制剂用于A^2O生物膜反应器的挂膜研究  

Biofilm culturing of A^2O reactors using high concentration microbial agents

作　　者：林海[1] 王筱雯[1,2] 董颖博[1] 马伟芳[2] 韩东梅[2] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京市可持续发展促进会,北京100084

出　　处：《北京科技大学学报》2013年第3期402-408,共7页Journal of University of Science and Technology Beijing

摘　　要：针对地埋式污水处理系统的特点,将一种高浓度微生物制剂用于生物膜反应器的挂膜,研究了其在处理模拟家庭生活污水过程中的启动特性.在进水化学耗氧量、氨氮和总磷分别为750、48和7.5 mg·L^(-1)的条件下,装置运行10 d后,对三者的去除率分别达到85%、58%和35%.光学显微镜、环境扫描电镜观察显示,随着系统的去除率逐渐升高,微生物的种类也在逐渐改变;聚合酶链式反应-变性梯度凝胶电泳的检测结果则表明,火山岩填料和悬浮填料表面生长的微生物种类较为丰富,虽然不同条件下微生物群落发生了不同程度变化,但是整个微生物系统仍保持相对的稳定性.According to the characteristics of a buried sewage treatment system,the start-up of high concentration microbial agents in dealing with analog household sewage was studied in a biofilm reactor.When the chemical oxygen demand,ammonia nitrogen,and total phosphorus are 750,48 and 7.5 mg·L^（-1）,the removal rates of them are 85%,58%, and 35%after operation for 10 d,respectively.Optical microscopy and environmental scanning electron microscopy observations show that with the system removal rate increasing,the microbial species gradually changes.The results of polymerase chain reaction-denature gradient gel electrophoresis（PCR-DGGE） demonstrate that the microbial species on volcanic rocks and suspended fillers are abundant,and the microbial community changes under different conditions, but the whole system of microorganisms maintains relatively stable.

关 键 词：污水处理 生物膜 微生物 化学需氧量 脱氮 磷 

分 类 号：X703.3[环境科学与工程—环境工程]