天津市于桥水库河口湿地设计  

The Design of Estuarine Wetland Project of Tianjin yuqiao Reservoir

作　　者：吴桐[1] 吴换营 WU Tong;WU Huan-ying(North China Electric Power University,Department of Environmental Science and Engineering,Baoding 071003,Hebei,China;Tianjin Water Planning Survey and Design Co.,Ltd,Tianjin 300204,China)

机构地区：[1]华北电力大学环境科学与工程系,河北保定071003 [2]天津市水务规划勘测设计有限公司,天津300204

出　　处：《湿地科学与管理》2025年第2期59-65,共7页Wetland Science & Management

摘　　要：于桥水库是天津市重要的饮用水水源地,由于上游来水氮磷污染物不断增加,水华现象经常发生,严重影响供水安全。为有效消减氮磷负荷缓解富营养化问题,在于桥水库河口建设了表流湿地,占地面积22 km^(2),包括防洪工程、节制工程、渠系工程、单元工程、交通工程、生态修复工程及景观工程。新开挖泄洪通道,与原河道协同泄洪,保证行洪安全;在河道外并联布置湿地,湿地按10 a一遇洪水标准进行防护;利用河道对来水进行调节和预处理,引水进入湿地,净化后再流入水库。于桥水库河口湿地既保障了防洪安全,又有效消减了氮磷负荷,TN、TP削减率分别为60%、50%,达到预期目的,可为类似湿地工程建设提供实践参考。Yuqiao Reservoir is an important drinking water source for Tianjin,Caused by the persistent rise in nitrogen and phosphorus pollutants originating from upstream,water blooms frequently emerge,posing a significant threat to the safety of water supply.To effectively reduce nitrogen and phosphorus loads and alleviate eutrophication issues,a surface flow wetland system was constructed at the estuary,it covers an area of 22 km^(2),includes flood prevention project,regulation project,canal system project,unit project,transportation project,ecological restoration project and landscape project.To ensure flood safety,a new flood discharge channel was excavated,which works in conjunction with the original river;Outside the river,four wetlands are arranged in parallel,the wetlands are protected against a once-in-a-decade flood;The incoming water is regulated and pre-treated through the river,then diverted into the wetlands for purification before finally flowing into the reservoir.It not only ensures flood control safety but also effectively reduces nitrogen and phosphorus loads,the reduction rates of TN and TP are 60%and 50%respectively,the desired results are achieved.It provides a practical reference for similar projects.

关 键 词：于桥水库 富营养化 人工湿地 水质净化 水生态修复 

分 类 号：TV213.4[水利工程—水文学及水资源]