污水地下渗滤系统强化脱氮试验研究  

Studies on intensified nitrogen removal in subsurface wastewater infiltration system

作　　者：潘晶[1] 孙铁珩[2,3] 李海波[3] 

机构地区：[1]沈阳师范大学化学与生命科学学院,辽宁沈阳110034 [2]中国科学院沈阳应用生态研究所,辽宁沈阳110016 [3]沈阳大学沈阳市环境工程重点实验室,辽宁沈阳110044

出　　处：《中国环境科学》2011年第9期1456-1460,共5页China Environmental Science

基　　金：国家自然科学基金资助项目(41001321);沈阳市科技计划项目(110457);沈阳师范大学博士启动基金

摘　　要：构建了3套以5%炉渣+95%草甸棕壤为基质的地下渗滤系统室内模拟试验装置,在水力负荷为0.1m3/(m2.d)条件下进行了生活污水处理试验.结果表明,当分流位置位于系统内110cm处,分流比为1:1时,可提高地下渗滤对总氮的去除效率,总氮的去除率由59.37%提高至68.41%,且对COD和总磷的去除效果没有影响.The reason of low removal efficiency of total nitrogen in vertical infiltration of subsurface wastewater infiltration system （SWIS） is deficiency of carbon. Three pilot SWISs filled with the same mixed matrix of 5% slag and 95% brown soil were constructed in the laboratory. The experiment results showed that shunt distributing wastewater could significantly improve total nitrogen removal and the average removal rates of total nitrogen increased from 59.37% （without taking distributary measures） to 68.41%, and it had no great influence on the removal of COD and total phosphorus, when distributary ratio was 1：1 and shunt position at the depth of 110 cm. The results suggested that shunt distributing wastewater was simple and effective for nitrogen removal.

关 键 词：地下渗滤系统 生活污水 脱氮 分流 

分 类 号：X52[环境科学与工程—环境工程]