塔式复合人工湿地处理农村生活污水的试验研究  

Experimental Study on Tower-type Integrated Constructed Wetland for Treatment of Rural Domestic Sewage

作　　者：叶芬霞[1] 李颖[1] 朱瑞芬[1] 

机构地区：[1]宁波工程学院化学工程学院,浙江宁波315016

出　　处：《中国给水排水》2008年第21期60-63,共4页China Water & Wastewater

基　　金：宁波市自然科学基金资助项目(2006A610078)

摘　　要：考察了新型人工湿地——塔式复合人工湿地(TICW)对农村生活污水的处理效果。结果表明,TICW对污染物具有较高的去除能力,脱氮效果尤其明显,对COD、NH4+-N、TN、TP的去除率分别为72%、82%、83%、63%;TICW的瀑布式水流增强了污水的充氧效果,湿地土壤中氨化菌、硝化菌的数量均较多,分别为107～108CFU/g土壤和104～105MPN/g土壤,提高了湿地的脱氮性能;木本植物和地方特有的经济作物——蔺草的结合使用使湿地在冬季仍能保持较高的除污能力。The treatment efficiency of rural domestic sewage by tower-type integrated constructed wetland was investigated. The results show that the removal efficiencies of COD, NH4 - N, TN and TP are 72%, 82%, 83% and 63% respectively. The oxygen content of sewage is increased due to the waterfall flow. The amounts of ammonifying bacteria and nitrifying bacteria in the wetland are 10^7 to 10^8 CFU/g （soil） and 10^4 to 10^5 MPN/g （soil） respectively, which improves the nitrogen removal performance of the wetland. The combined use of woody plants and mat rush in wetland keeps good treatment efficiency of the wetland during winter period.

关 键 词：塔式复合人工湿地 农村生活污水 脱氮 蔺草 

分 类 号：X703.1[环境科学与工程—环境工程]