缺氧/好氧强化生物絮凝—生物膜过滤处理生活污水  

Anoxic/oxic enhanced bio-flocculation plus bio-filter process for treatment of sewage

作　　者：杨华仙[1] 黄慎勇[1] 马林伟[1] 

机构地区：[1]中国市政工程西南设计研究院,成都610081

出　　处：《给水排水》2007年第S1期24-28,共5页Water & Wastewater Engineering

摘　　要：研究了缺氧/好氧强化生物絮凝—生物膜工艺对生活污水COD_(Cr)、NH_3—N、TN、TP、浊度的去除效能和机理。试验结果表明:缺氧池、絮凝池的最佳HRT之比为3.6/2.4;絮凝池最佳DO为0.5mg/L;最佳流量为4m^3/d。在最佳工艺运行参数条件下,COD_(Cr)、NH_3—N、TN、TP、浊度的平均去除率分别为95.05%、44.91%、39.43%、63.46%、71.03%,出水COD_(Cr)、SS达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级B标准,TP接近达标。A full-scale experiment was conducted on treatment of swage by anoxic/oxic en- hanced bio-flocculation plus velocity-changed bio-filter process.The experimental results showed that the optimal working conditions were anoxic tank HRT of 3.6h,oxic tank HRT of 2.4h and DO of 0.5mg/ L,flow quantity of 4m^3/d.The removal of COD_(Cr) was 95.05%,those of NH_3-N,TN,TP and turbid de- gree were 44.91%,39.43%,63.46%,and 71.03% respectively.The quality of the effluent can partially meet the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).

关 键 词：生活污水 生物絮凝吸附 生物膜 

分 类 号：X703.1[环境科学与工程—环境工程]