地下土壤渗滤系统脱氮效果的研究  

Research on Denitrification Effect of Subsurface Wastewater Infiltration System

作　　者：刘玉忠[1] 王丽君[1,2] 张列宇[2] 夏训峰[2] 席北斗[2] 

机构地区：[1]华北水利水电学院,河南郑州450011 [2]中国环境科学研究院,北京100012

出　　处：《环境科学与管理》2012年第10期28-31,36,共5页Environmental Science and Management

基　　金：城乡统筹生活污染控制和生态建设共性技术与综合示范(2009BADC2B04)

摘　　要：在地下土壤渗滤系统运行的过程中,污水中的总氮主要是通过硝化作用及反硝化作用去除的。但是由于反应条件的限制,该系统出水中总氮的浓度总是不能使人满意。分析目前常用的三种提高总氮去除效率的地下土壤渗滤系统得出:间歇进水,并且在一定土壤层深度为微生物的活动提供有机物可以显著降低出水中总氮的浓度。In the operation of subsurface wastewater in？ hration system, total nitrogen in sewage was mainly removed by nitri- fication and denitrification effects. However, the total nitrogen concentration in the effluent was not satisfactory because of limited reaction conditions. This paper analyzed the three typical subsurface wastewater in？ ltration systems to improve the total nitrogen removal efficiency, and research results show that the most effective method for reducing the total nitrogen concentration in effluent was intermittent water and providing organic matter for microbial in certain depth of soil layer.

关 键 词：地下土壤渗滤系统 硝化反应 反硝化反应 总氮去除率 

分 类 号：X53[环境科学与工程—环境工程]