东阳市江滨景观带湿地公园设计案例分析

Case Study on Design of Constructed Wetland Park in Jiangbin Landscape Belt of Dongyang

东阳市江滨景观带湿地公园以"模拟自然的河流"为设计理念,采用"生态氧化池+生态砾石床+垂直潜流湿地+水平潜流湿地+表流湿地"工艺处理污水处理厂尾水。工程将景观功能提到同等高度,成功打造了景观型尾水人工湿地,并解决了不规则湿地单元均匀配水、湿地防渗、填料设计、防堵塞设计等关键技术问题。通过发挥EPC(设计采购施工)总承包建设模式的优势,以设计为龙头,解决了施工过程中填料清洗、分选、摊铺等关键技术问题。该工程集污水处理、景观游憩、科普教育于一体,取得了良好的社会、环境、经济效益,可以为国内类似工程的实施提供借鉴。

Based on the design concept of simulated natural rivers, the combined treatment process of " ecological oxidation tank + ecological gravel bed + vertical subsurface flow wetland + horizontal subsurface flow wetland + surface flow wetland" was used to treat the effluent from wastewater treatment plant in Dongyang. In addition, the landscape function of constructed wetland was also considered as important as treatment performance. Then, the combined CWs had been built into the wetland park. The key technical problems such as uniform distribution of water in irregular wetland units, wetland seepage control, filler design, anti-blocking design were solved in this project. Through exerting the advantages of EPC ( Engineering Procurement Construction) construction mode, the key technical problems such as filler cleaning, sorting, spreading and so on had been solved by taking design as the lead factor. With the function integrates of wastewater treatment, landscape recreation and popular science education, the project achieved good social, environmental and economic benefits, which could provide reference for the implementation of similar projects in China.