强化脱氮地下渗滤系统处理生活污水的研究  

Study on Sewage Treatment by Enhanced Denitrogenation Subsurface Infiltration System

作　　者：王秋慧[1] 邵坚[1] 邹仲勋[1] 

机构地区：[1]华北水利水电学院,河南郑州450011

出　　处：《环境科技》2008年第6期40-42,46,共4页Environmental Science and Technology

摘　　要：通过在渗滤沟底部填充一层铁炭混合物而改造成的强化脱氮地下渗滤系统。结果表明,强化脱氮地下渗滤系统对生活污水具有良好的处理效果,在水力负荷为2cm/d情况下,对COD的去除率在92%以上,对TP的去除率在99%以上,对TN的去除率达到了80%。因此把铁炭等化学脱氮法结合到地下渗滤系统中,能大大提高地下渗滤系统的脱氮效果,为解决地下渗滤系统脱氮效果差的问题提供了新的思路及途径。A new enhanced denitrogenation subsurface infiltration system was built by filling with a layer of iron-carbon mixture at the bottom of the infiltration ditch. The results showed that enhanced denitrogenation subsurface infiltration system could reach better effluent quality. The averaged removal rates of COD, TP and TN were 92%, 99%, and 80% respectively when the hydraulic load was 2 cm/d. Chemicaldenitrogenation method, such as iron-carbon method combined with subsurface infihration system, could greatly improve the effect of denitrogenation, which provided a new way to improve the denitrogenation effect of the subsurface infiltration system.

关 键 词：地下渗滤 铁炭法 生活污水 

分 类 号：X7[环境科学与工程—环境工程]