摘要
采用两级曝气生物滤池(BAF)工艺,对生活污水进行处理。试验研究了两级曝气生物滤池(BAF)工艺系统生物膜的培养过程和对CODcr,BOD5、SS、NH3-N等去除效果。试验结果表明生活污水经两级曝气生物滤池(BAF)工艺系统处理后,出水BOD5与CODcr分别低于10 mg/L和40 mg/L,SS小于10 mg/L,浊度小于8NTU,色度小于15度,总磷小于3 mg/L,NH3-N小于2 mg/L,NO3-N小于5 mg/L,细菌小于3个/mL,大肠杆菌未检出;CODcr,BOD5的去除率分别超过90%、95%,SS和NH3-N去除率接近100%,出水稳定,水质较好,符合国家污水综合排放的水质标准,有利于污水的再生利用。
The domestic wastewater was treated by two stage biological aerated filter（BAF）. The process of biofilm cultivation and the removal efficiencies of CODer, BODs, SS, NH3 - N were investigated in this study. The result indicates that the sys- tem is efficient for the removal of CODer, BOD5 , SS, NH3 -N and so on, the effluent concentration of CODer and BOD5 is less than 10 mg/L and 40 mg/L, SS is smaller than 3 mg/L, turbidity is smaller than 8NTU, color is no more than 15degree,TP is less than 3 mg/L,NH3 - N is less than 2 mg/L,NO3 - N is less than 5 mg/L,Bacteria is less than 3/mL, E. coli was not found re- spectively. The removal effieiencies of CODer, BOD5 are beyond 90% and 95% respectively, and SS, NH3 - N are removed about 100%. The effluent quality of two stage BAF treatment system is fine, and better in line with the state wastewater discharge standards. It is conducive to the recycling of waste water.
出处
《环境科学与管理》
CAS
2009年第10期101-103,112,共4页
Environmental Science and Management
基金
中国环境管理干部学院项目"改性硅藻土絮凝剂污泥处理的技术研究"的成果之一
