四川环境2011，Vol.30Issue(1)：16-20,5.
分层填料土地毛管渗滤系统脱氮作用研究
Denitrification of Capillary Filtration System of Soil with Layered Packing
摘要
Abstract
The denitrification effect and mechanism of capillary filtration system of soil with layered packing was studied.Nitrogen static adsorption experiments and soil TN analysis showed that denitrification of packing was limited. Plants accounted for only 0.47％ of the contribution to the TN removal The correlation analysis of temperature and TN removal showed that temperature effect on the TN removal was insignificant. When the effluent water level raised 30 cm to create suitable reduction environment for denitrifying bacteria, the TN removal rate reduced from 39. 1％ to 30. 0％. It showed that the oxidation reduction conditions weren't the constraints of denitrification. Adding glucose as carbon source to make C/N ＞3, the organic matter removal rate would kept over 80％ and the TN removal rate rose to 52.4％. High C/N ratio improved the removal rate of TN efficiently.关键词
分层填料/土地毛管渗滤系统/脱氮Key words
Layered packing/ capillary filtration system of soil/ denitrification分类
资源环境引用本文复制引用
黄志东,张杰,杨健,吴一蘩,严群,董卫华..分层填料土地毛管渗滤系统脱氮作用研究[J].四川环境,2011,30(1):16-20,5.基金项目
国家科技重大专项资助(2008ZX07421-001,002,2008ZX07407-007-1) （2008ZX07421-001,002,2008ZX07407-007-1）
上海市科委资助项目(09dzl204107). （09dzl204107）
