雄安新区孝义河河口湿地水质净化工程设计  

Design of Water Purification Project of Xiaoyi River Estuary Wetland in Xiongan New Area

作　　者：宋凯宇 章粟粲 魏俊 陈奋飞 杨棠武 SONG Kai-yu;ZHANG Su-can;WEI Jun;CHEN Fen-fei;YANG Tang-wu(PowerChina Huadong Engineering Corporation Limited,Hangzhou 311122,China;Nanjing University Ecological Research Institute of Changshu,Changshu 215501,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122 [2]南大<常熟>研究院有限公司,江苏常熟215501

出　　处：《中国给水排水》2020年第10期62-69,共8页China Water & Wastewater

摘　　要：雄安新区孝义河是白洋淀八条入淀河流之一,为保证白洋淀水质,实施孝义河河口湿地水质净化工程,工程设计处理规模为20×10^4m^3/d,采用"前置沉淀生态塘+潜流湿地+表流湿地+沉水植物塘"组合处理工艺,工程建成后将成为国内第二大水平潜流湿地。根据设计规范和设计经验预测,当湿地来水满足《地表水环境质量标准》(GB 3838—2002)Ⅳ类标准时,冬季TP去除率≥30%;当来水满足Ⅴ类标准时,出水水质满足Ⅳ类标准;当来水劣于Ⅴ类标准时,冬季TP去除率≥30%,其他主要超标污染物去除率≥20%。工程总占地为1.98 km^2,建设成本约2150元/m^3,处理成本约0.098元/m^3。Xiaoyi River in Xiongan New Area is one of the eight rivers flowing into Baiyang Lake.In order to purify water in Xiaoyi River,the river estuary constructed wetland project was constructed,the treatment capacity of which was 20×10^4 m^3/d.The treatment process was combined by"preprecipitation ecological pond+subsurface wetland+surface wetland+submerged plant pond",the project would become the second largest horizontal subsurface wetland in China.Prediction based on design specification and engineering experience,if the wetland inflow could meet the classⅣstandard of Environmental Quality Standards for Surface Water(GB 3838-2002),total phosphorus(TP)removal would be required not lower than 30%in winter;if the inflow could meet the classⅤstandard,the effluent should meet the classⅣstandard;if the inflow quality is worse than the classⅤstandard,TP removal should be above 30%in winter,and the other major over-standard pollutants removal ought to be more than 20%.The area of this project was 1.98 km^2,the construction cost of this project was 2150 yuan/m^3,and the operation cost was 0.098 yuan/m^3.

关 键 词：雄安新区 白洋淀 组合人工湿地 

分 类 号：TU992.3[建筑科学—市政工程]