腐殖填料生物滤池处理生活污水的效能研究  

Efficiency of Humus Filter for Treatment of Domestic Sewage

作　　者：周正伟[1] 吴军[1] 曹丽华[1] 王娟[1] 蔡德华 陈泽智[1] 潘丙才[1] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210093 [2]扬中市环保局,江苏扬中212200

出　　处：《中国给水排水》2010年第7期22-26,共5页China Water & Wastewater

基　　金：江苏省科技厅项目(BS2007052);水利部公益性项目(200801028)

摘　　要：采用腐殖垃圾作为填料构筑生物滤池,进行处理生活污水的实验室小试研究,并在此基础上进行工程示范。结果表明,小试装置对COD、NH4+-N、TP和TN的平均去除率分别为85.7%、96.3%、63.5%和25.6%;出水回流可以提高对TN的去除率,回流比为10%和20%时,对TN的平均去除率分别提高至49.8%和63.8%。示范工程(100 m3/d)位于江苏省扬中市,对COD、NH 4+-N、TP和TN的平均去除率分别为55.0%、100%、84.5%和19.2%;除TN因碳源不足而反硝化效率较低,导致其出水浓度较高外,其他指标:COD<40 mg/L、TP<0.5 mg/L、NH4+-N基本检测不出来;工程使用的腐殖垃圾填料从浸出毒性到出水重金属浓度均具安全性,不影响出水的回用。示范工程的投资<3 000元/m3,污水处理成本<0.1元/m3。A laboratory scale biofilter filled with humus refuse was used to treat domestic sewage, and a demonstration project was conducted. In laboratory research, the average removal rates of COD, NH4^＋ -N, TP and TN are 85.7%, 96.3%, 63.5% and 25.6% respectively. The effluent return can improve the removal rate of TN, and it can be increased to 49.8% and 63.8% when the return ratio is 10% and 20% respectively. In the demonstration project of 100 m^3/d in Yangzhong City, Jiangsu Province, the average removal rates of COD, NH4^＋ - N, TP and TN are 55.0%, 100% , 84.5% and 19.2% respectively. Except high TN in the effluent due to insufficient carbon source in denitrifieation phase, the concentrations of COD and TP in the effluent are less than 40 mg/L and 0.5 mg/L respectively, and NH4^＋-N can not be detected. The filling materials used are proved to be safe and non-interfering with the reuse according to the leaching toxicity experiment and concentrations of heavy metals in the effluent. The construction cost for the demonstration project is less than 3 000 RMB/m^3, and the operating cost is less than 0.1 RMB/m^3.

关 键 词：生物滤池 腐殖填料 生活污水 示范工程 

分 类 号：X703[环境科学与工程—环境工程]