缺氧-好氧生物滤池的脱氮效能研究  

Denitrification Performance of Aerobic and Anoxic Filters in Treatment of Reclaimed Water

作　　者：李悦[1] 高建锋[2] 赵建树[1] 

机构地区：[1]深圳市水务<集团>有限公司,广东深圳518031 [2]哈尔滨工业大学深圳研究生院,广东深圳518055

出　　处：《中国给水排水》2015年第15期93-96,共4页China Water & Wastewater

摘　　要：采用前置反硝化滤池处理城市污水处理厂二级出水，研究了前置反硝化滤池工艺的启动挂膜特性及C／N值对去除氨氮和总氮的影响。结果表明，好氧滤池采用接种挂膜法，21d挂膜成功；缺氧池采用自然挂膜法，投加乙酸钠7d后挂膜成功。前置反硝化滤池对实际二级出水有较好的脱氮性能，当好氧滤池和缺氧滤池的水力停留时间分别为18、8min，C／N值为4．7～5．6时，工艺出水NH4^＋-N、TN和COD浓度分别在0．5、2和15mg／L以下，达到了《深圳市再生水、雨水利用水质规范》的要求。Biofilm formation and effect of C/N on removal of ammonia nitrogen and total nitrogen were studied using pre-denitrification filter in treatment of secondary effluent from WWTP. The results showed that the successful start-up of aerobic filter was achieved by inoculated biofilm formation method within 21 days, and the successful start-up of anoxic filter was achieved by natural biofilm formation method and adding sodium acetate within 7 days. The pre-denitrification filter performed well in nitrogen removal from the secondary effluent. When the hydraulic retention time of aerobic filter or anoxic filter was 18 min or 8 min respectively, and the C/N ratio was 4.7 to 5.6, the effluent concentrations of NH4^＋ - N, TN and COD were below 0.5 mg/L, 2 mg/L and 15 mg/L respectively, which met the requirements in the Specification of Water Quality for Reclaimed Water and Rainwater Utilization （SZJG 32 -2010）.

关 键 词：前置反硝化滤池 脱氮 挂膜 碳源 

分 类 号：X703[环境科学与工程—环境工程]