摘要
通过试验,研究了人工快速渗滤系统工程中渗滤池内部氮的形态分布、渗滤介质吸附性能对人工快速渗滤系统处理生活污水氨氮的影响。结果表明,人工快速渗滤系统中氨氮的去除机理是:氨氮首先被渗滤介质所吸附,随后在落干期内进行硝化反应。渗滤介质对氨氮的吸附速度非常快,一般可以在30～60s内达到吸附平衡,渗滤介质对氨氮吸附效果最佳的位置在渗滤液表层以下5～25cm处,随后吸附效果随渗滤池深度增加而逐渐降低。渗滤池的深度和过水时间能够满足渗滤介质对氨氮的完全吸附。
In a constructed rapid filtration system, the forms and distribution of N within infiltration pond was studied, and removal effects of adsorption properties of the infiltration media on NH3-N were analyzed. The results showed that the mechanism of removing NH3-N is that the NH3-N adsorbed by infiltration media at the first then nitrified. The adsorbing speed of NH3-N is very fast with generally reaching adsorption balance in 30 s to 60 s. The best location of adsorbing NH3-N is forms from 5 cm to 25 em under the surface, subsequently with the increase of infiltration pond depth, the adsorption decreased gradually. The depth of infiltration pond and watering time are adequate for absolutely adsorbing NH3-N by the infiltration media.
出处
《贵州农业科学》
CAS
北大核心
2009年第2期40-42,共3页
Guizhou Agricultural Sciences
基金
中国科学院知识创新工程项目(KZCX3-SW-140)
关键词
人工快速渗滤系统
形态
吸附
渗滤介质
污水处理
constructed rapid infiltration
form
adsorption
infiltration media
wastewater treatment
