水力停留时间对人工湿地净化城市湖泊水体影响  

Effect of Hydraulic Retention Time on Water Purification of Urban Lakes by Artificial Wetland

作　　者：崔芳[1] 袁博[2] 

机构地区：[1]宝鸡文理学院陕西省灾害监测与机理模拟重点实验室,陕西宝鸡721013 [2]西安理工大学水利水电学院,陕西西安710048

出　　处：《江西农业学报》2011年第11期171-174,共4页Acta Agriculturae Jiangxi

基　　金：陕西省教育厅专项科研项目(11JK0762);西安文理学院院级重点学科项目(ZK1023)

摘　　要：以西安市兴庆湖为研究对象,参考国内外相关文献,总结分析了人工湿地的定义、分类、组成及净化机制,同时对人工湿地在国内外的研究现状进行了阐述。该文参照了排入西安市兴庆湖的混合污水的水质,采用水平潜流式人工湿地对入湖污水进行处理,测定了不同水力停留时间对化学需氧量、总氮、总磷、氨氮的去除效果。结果表明:水力停留时间是影响人工湿地处理效果的重要因素,通常情况下,水力停留时间越长,污染的去除效果越好。Taking the Xingqing Lake in Xi＇an city as the studied object,referring to the relevant literatures in the world,the paper summarized and analyzed the definition,classification,composition and purification mechanism of the artificial wetland,and expounded the research status of artificial wetland at home and abroad.This experiment consulted the water quality of mixed wastewater that discharged into the Xingqing Lake,disposed the wastewater by using the artificial wetland of horizontal undercurrent type,and determined the removal efficiency of chemical oxygen demand,total nitrogen,total phosphorus and ammoniacal nitrogen under the conditions of different hydraulic retention time.The results showed that the hydraulic retention time was the main factor which impacted the treatment effects of the artificial wetland,commonly,the removal efficiency of the pollutants increased with the increase of hydraulic retention time.

关 键 词：人工湿地 城市湖泊 水力停留时间 

分 类 号：X524[环境科学与工程—环境工程]