生态湿地技术在内江太子湖项目尾水处理中的应用  

Application of ecological wetland technology in tail water treatment on the project of Taizihu in Neijiang

作　　者：蔡然 王征戍 张功良 李德祥 刘芮杉 吴伟龙 CAI Ran;WANG Zhengshu;ZHANG Gongliang;LI Dexiang;LIU Ruishan;WU Weilong(Beijing Capital Co.,Ltd.,Beijing 100044 China;Beijing Mercury Environment Co,,Ltd.,Beijing 100044 China)

机构地区：[1]北京首创股份有限公司,北京100044 [2]北京水星环境有限公司,北京101599

出　　处：《给水排水》2021年第1期54-57,共4页Water & Wastewater Engineering

摘　　要：内江太子湖村污治理工程工艺流程为水平潜流湿地+表流湿地,尾水通过水平潜流湿地利用填料吸附、生物降解、植物吸收等物理生物化学等方式去除目标污染物,通过表流湿地进行根系传氧、基质截流、植物吸收等方式进一步提升水质,最终达标出水。水平潜流湿地填料主要采用不同粒径的砾石,底层装填φ8~16mm砾石,上层装填φ4~5mm砾石。水生植物搭配选用灯心草、旱伞草、水葱、美人蕉、梭鱼草、再力花的植物组合,尾水净化的同时,也打造了太子湖优美的景观环境。工程充分利用地形设计,采用自然重力布水,节省了投资建设费用及后期运营费用,分流井与消能净化池的组合设计解决了雨季溢流污染问题。The village sewage treatment project of Taizihu in Neijiang adopt ecological wetland,and the process flow is horizontal subsurface flow wetland+surface flow wetland.The tail water passes through the horizontal subsurface flow wetland to remove the target pollutants by physical and biochemical methods such as filler adsorption,biodegradation,plant absorption,etc.and carries out root oxygen transfer and matrix interception through the surface flow wetland flow,plant absorption and other ways to further improve the water quality,and finally meet the standard of effluent.The horizontal subsurface flow wetland is mainly filled with gravel of different particle sizes.The bottom layer is filled withφ8~16 mm gravel,and the upper layer is filled withφ4~5 mm gravel.The combination of hydrophytes is composed of rushes,parasol,shallot,canna,barracuda,reincarnation.The tail water is purified and the beautiful landscape environment of Taizi lake is created.The project makes full use of terrain design and adopts natural gravity water distribution to save investment and construction cost and later operation cost.The design of diversion well+energy dissipation purification pool successfully solves the problem of overflow flushing wetland in rainy season.

关 键 词：生态湿地 农村生活污水 点源削减 生态修复 

分 类 号：X703.1[环境科学与工程—环境工程]