曝气生物滤池处理生活污水效能沿滤层高度的变化  

Effect of changes of biological aerated filter treating domestic wastewater through filter layer

作　　者：李宁[1] 赵玉华[2] 刘斌 

机构地区：[1]沈阳市房地产开发建设管理办公室,辽宁沈阳110013 [2]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [3]构易都市(北京)建筑设计咨询有限公司,北京100055

出　　处：《大连工业大学学报》2010年第2期140-142,共3页Journal of Dalian Polytechnic University

基　　金：建设部科技攻关项目(05-K2-11)

摘　　要：采用曝气生物滤池处理生活污水，研究水中污染物沿滤层高度变化情况，以确定曝气生物滤池去除各污染物的有效滤层高度。研究结果表明，曝气生物滤池可有效处理生活污水。在二级滤池、滤层总高度4m、滤速5．0m／h条件下，出水COD、氨氮和总磷均能达到城镇污水处理厂综合排放标准。滤池总去除率，COD90．39％，氨氮71．14％，总磷95．46％。曝气生物滤池去除COD主要在滤层0～2．6m段，去除率75％，占总去除率的82．9％；去除氨氮主要在2．6～4．0m段，去除率49．50％，占总去除率的69．6％；去除总磷主要在1．2～2．6段，去除率61．78％，占总去除率的64．7％。用曝气生物滤池处理生活污水，要达到《城镇污水处理厂综合排放标准》，滤层高度应在4m左右。Domestic wastewater was treated by domestic wastewater could be up to Discharge biological aerated filter（BAF）. The index of the Standard of Pollutants for Municipal Wastewater Treatment Plant by a two-stage BAF with 4 m in depth and filtering at 5 m per hour. The removed rate of COD was 90.39%, nitrogen was 71.14% and total phosphor was 95.46%. The COD was removed by 75% in the layer from 0 to 2.6 m highness, nitrogen by 49.50% from 2.6 to 4.0 m highness and total phosphor by 61.78% from 1.2 to 2.6 m highness. The layer depth of BAF should be more than 4 m for domestic wastewater treatment.

关 键 词：曝气生物滤池 生活污水 滤层高度 

分 类 号：X779.3[环境科学与工程—环境工程]