新型人工湿地处理校园生活污水的运行特性  

Operational Characteristics of Multi-stage Vertical Flow Constructed Wetland System Treating University Campus Sewage

作　　者：刘超[1] 杨永哲[1] 宛娜[1,2] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]济南市市政工程设计研究院有限公司,山东济南250101

出　　处：《中国给水排水》2012年第17期33-35,共3页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07212-002-004-003)

摘　　要：为提高人工湿地的除磷效果并实现建筑废料的资源化利用,构建了多级串联复合垂直流人工湿地系统。该人工湿地采用粉煤灰砌块和碎石作为填料,处理原水为校园生活污水,试验期间其总COD、溶解性COD、SS、磷酸盐、氨氮的平均浓度分别为215.2、167.0、68.9、2.43、33.20mg/L。校园污水依次经过Imhoff池和四级串联垂直流湿地系统后水质得到改善,出水总COD、溶解性COD、磷酸盐、氨氮分别为60.3、55.8、0.02、5.33 mg/L,SS未检出。可见,该新型湿地系统不仅具有较强的净化污水能力,而且利用建筑废料作为填料可使除磷率达99%左右。To improve phosphorus removal of constructed wetlands and to make use of construction wastes, a multi-stage constructed wetland （CW） system operated in series was developed. The construction wastes fly ash blocks and gravel were used as substrate in the constructed wetland system. The system was fed with campus sewage with total COD, soluble COD, suspended solid （SS） , phosphate and ammonia nitrogen concentrations of 215.2 mg/L, 167.0 mg/L, 68.9 mg/L, 2.43 mg/L and 33.20 mg/L respectively. Following pretreatment in the Imhoff tank and four-stage constructed wetland system, the effluent concentrations of total COD, soluble COD, phosphate and ammonia nitrogen were reduced to 60.3 mg/L, 55.8 mg/L, 0.02 mg/L and 5.33 mg/L respectively. SS was not detected.

关 键 词：人工湿地 校园生活污水 建筑废料 除磷 

分 类 号：X703[环境科学与工程—环境工程]