Design of Constructed Wetland for Treatment of Tailwater from Wastewater Treatment Plant  

污水处理厂尾水处理的人工湿地设计（英文）

作　　者：李昆[1] 王玲[2] 李兆华[3] 苗纪法 王祥荣[1] 

机构地区：[1]复旦大学环境科学与工程系,上海200433 [2]中国科学院亚热带农业生态研究所,湖南长沙410125 [3]湖北大学资源环境学院,湖北武汉430062

出　　处：《Agricultural Science & Technology》2015年第3期568-572,582,共6页农业科学与技术（英文版）

基　　金：国家民生科技项目(2001MSB5007)~~

摘　　要：In this study, the project of constructed wetland for treatment of tailwater from the wastewater treatment plant in Wudang Mountain was taken as an example, and the technological processes, pollution load, wetland bed structure, bed filler, selection of plants and hydraulic conditions of the subsurface flow constructed wetland were discussed. A subsurface flow constructed wetland, which covered an area of 7 227 m^2 was finally designed. It could treat 7 000 m^3 of tailwater from the wastewater treatment plant a day. In addition, the system could reduce the emission of COD, BODs, TN, TP and NH3-N by 25.55, 25.55, 12.78, 1.28 and 17.89 t respectively a day. The outlet water was proved to reach the Standard A of the first class in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB 18918-2002）.以武当山污水处理厂尾水处理的人工湿地工程为例,通过对潜流型人工湿地的工艺流程、污染负荷、湿地床结构、基质材料、植被选择及水力条件等设计参数的分析,设计了占地面积为7 227 m2的潜流型人工湿地,每天可处理7 000 m3的污水处理厂尾水,系统每年可减排COD 25.55、BOD525.55、TN12.78、TP 1.28、NH3-N 17.89 t,出水可达到《城镇污水处理厂污染物排放标准》(GB18918-2002)的一级A标准。

关 键 词：TAILWATER Subsurface flow constructed wetland Engineering design 

分 类 号：X703.1[环境科学与工程—环境工程]