不同填料曝气生物滤池启动运行特性比较  

START-UP OPERATIONAL PERFORMANCE COMPARISON OF AERATED BIOLOGICAL FILTERS WITH DIFFERENT CARRIERS

作　　者：沈耀良[1] 金吴云[1] 刘灿灿[1] 

机构地区：[1]苏州科技学院环境科学与工程学院

出　　处：《水处理技术》2008年第6期33-36,共4页Technology of Water Treatment

基　　金：江苏省“333工程”学术带头人资助课题

摘　　要：在相同运行条件下对瓷粒和陶粒两种不同填料曝气生物滤池(BAF)启动运行进行了试验研究,对不同填料在挂膜过程中COD和NH4+-N的去除效果及出水NO3--N和NO2--N进行了考察,并对两种填料表面生长的生物膜进行了剥离镜检。结果表明,在常温20～25℃下两种填料所需的启动挂膜时间均有较大差异,陶粒填料所需时间为10d,而瓷粒填料则需30d。启动挂膜过程中,两个BAF对COD和NH4+-N的去除率基本相同,但所需运行时间有较大差异。陶粒填料BAF硝化效果好于瓷粒填料。镜检表明,两种填料表明生物膜中均存在着多种微生物和明显的生物相分布。The laboratory-scale study was carried out on the start-up and bio-film cultivation performance of two biological aerated filters（BAF） with ceramsite and porcelain carriers at same operational conditions, and the COD and NH4^＋-N removal and NO3^＋ -N and NO2^＋-N in effluent of both BAFs were monitored during operation, the bio-films on both ceramsite and porcelain particle surfaces were observed with optical bio-microscope. The results showed that the time needed for start-up and bio-film cultivation of both ceramsite and porcelain particle carriers were different, for the ceramsite particle carrier 10 days needed but for porcelain particle carrier 30 days needed at ambient temperature（20--25℃）. The two BAFs can reach the nearly same COD and NH4^＋-N removal efficiencies but different operational time was needed. It was also found that the BAF with ceramsite particle as bio-film car- rier could reach a much better nitrification than the case in the BAF with porcelain particles. The result of optical bio-microscope observation showed that the micro-ecosystem with different microbes and distinct phase distribution was formed in bio-films in both BAFs.

关 键 词：曝气生物滤池 填料 启动 挂膜 

分 类 号：X703.1[环境科学与工程—环境工程]