前置反硝化曝气生物滤池中试启动研究  

Pilot Study on Start-up of Pre-denitrification Biological Aerated Filter

作　　者：林齐[1,2] 李冬[2] 恩惠 王玉凯[3] 马佩华[3] 张杰[2] 

机构地区：[1]中国环境科学研究院城市水环境研究室,北京100012 [2]北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室,北京100124 [3]沈阳振兴环保产业集团有限公司仙女河污水处理厂,辽宁沈阳110141

出　　处：《中国给水排水》2012年第13期125-128,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2008XZ07208-003;2008ZX07420-004-BJUT001;2008ZX07208-005-003;2009ZX07424-001);城市水资源与水环境国家重点实验室开放基金资助项目(QAK201005);国家自然科学基金资助项目(50878003);北京市自然科学基金资助项目(8092006)

摘　　要：某污水处理厂采用曝气生物滤池(BAF)工艺,出水水质仅能达到国家二级排放标准,为使其达到国家一级A排放标准,拟采用前置反硝化BAF工艺进行升级改造,据此进行了中试启动研究。中试以污水厂实际进水为原水,处理规模为2 m3/d,采用自然挂膜方式,反硝化段和硝化段的体积比为1∶2,回流比为100%,各滤池的HRT均为0.67 h,CN池和N池的曝气量分别为0.82、1.0 m3/h。经过16 d的运行,出水COD、NH3-N和TN浓度分别稳定在50、5和15 mg/L以下,表明中试装置启动成功。The effluent quality from a WWTP using biological aerated filter （BAF） only met the second class national discharge standard. To meet the first class national discharge standard, a pilot study on the start-up of pre-denitrification BAF for upgrading and reconstruction was performed. The experi- mental conditions were as follows ： the actual influent of the WWTP was raw wastewater, the treatment ca- pacity was 2 m3/d, the natural biofilm formation method was used, the ratio of denitrification/nitrification section volume was 1 ： 2, the reflux ratio was 100% , HRT of all filters was 0.67 h, and the aeration rates of CN filter and N filter were 0.82 and 1.0 m3/h, respectively. After 16 d, the concentrations of COD, NH3 -N and TN in the effluent were lower than 50 mg/L, 5 mg/L and 15mg/L, respectively. The start-up of pre-denitrification BAF was completed successfully.

关 键 词：前置反硝化曝气生物滤池 启动 脱氮 

分 类 号：X703[环境科学与工程—环境工程]