人工湿地项目改造养管工程设计

Constructed wetland project transformation and maintenance project

某景观湖总建筑面积47650m^2,设计处理水量为6500 m^3/d。进水为区域内富营养化劣五类水质,现有水质较差、悬浮物较多、湿地植物种植品种匹配不合理等现状亟需解决。经评估现有处理设施后我方建议改造后系统由人工塘,土工滤池,人工湿地三部分组成。其中人工湿地部分利旧,人工塘利用现有河道稍加改造,土工滤池新建。改造后既能达到处理效率高,又可以有效改善湿地易堵塞问题,还可以提高景观效果,同时降低后期湿地清理费用。

The total building area of a landscape lake is 47650m^2,the designed treatment water amount is 6,500m cubed /d.The inflow water is eutrophically inferior to the five types of water quality in the region.The existing water quality is poor,much suspended substances,and the planting varieties of wetland plants are not reasonable.After evaluating the existing treatment facilities,we propose that the modified system be composed of artificial pond,geotechnical filter and artificial wetland.Constructed wetland part of the old,artificial pond using the existing river slightly modified,the new geotechnical filter.After the transformation,it can not only achieve high treatment efficiency,but also effectively improve the problem of wetland clogging,improve the landscape effect,and reduce the cost of wetland cleaning in the later stage.