A Special Request for A Wetland-Water Purification System 关于一个湿地净水系统的特殊请求

In the last decades, constructed wetlands have been developed and used in various technical designs. They use natural purification processes involving wetland vegetation, soils and microbial assemblages in shallow waters. Circulation of water bodies also supports water quality restoration and considerate wetland purification goals, when it keeps flow properly. As a Nature-Based Solution, constructed wetlands and water bodies are combinable Wetland-Water Purification Systems (WWPS). They are flexibly applied in urban and rural landscape to deal with water threats and shortages caused by climate change, population growth and all kinds of functions that affect surface, underground and supplied water. 

In China, wetland and water purification is an ancient idea getting attention again with rising water challenges. Gradually, wetland parks, canals and wetland areas are improving quality and maintenance in many cities, with inhabitants learning and appreciating more about wetland-water purification.  

For implementing an urban Wetland-Water Purification System (WWPS) for surface water in a major city of the Yangtze River Delta (YRD), a governmental water department and a national research institute look for a technical design team from the EU to join the design and implementation team, that is specialized in constructed wetland and water purification projects. Proven and innovation technologies are also being explored to improve effectiveness of WWP technical designs.

The project area (70.5 ha) is located in an urban wetland park. From existing polder lakelets, ca. 38 ha can be used for wetland and water purification. Some specific purification goals of the project include: To increase water transparency, control ammonia-nitrogen and COD level, to treat a considerable amount of surface water daily. The purified water shall feed a heritage canal system in the city centre. 

The project is planned to be implemented before October 2021. 

For more information, please mail an institutional or company introduction before 27th August 2020 (additonal info at latest 30th). The introduction should include one or more realized wetland-water purification cases in the EU, China or other regions.

Contact details:

Ms. Xiaoying Liu, spatial planning consultant, xyliu@natureherit.com, Natureherit DC

在过去的几十年里，人工湿地被开发并开始应用于各种技术设计中，利用湿地植被、土壤和浅水微生物群落等自然净水原理。循环的水体同样有助于水质恢复和湿地净化目标的实现，特别是在水体保持流动的情况下。作为一种基于自然的解决方案，人工湿地与水体是可结合的湿地净水系统。它们灵活地应用于城乡景观，以应对气候变化、人口增长，以及影响地表、地下和供水等各功能的水威胁和短缺。

在中国，湿地和净水是一个古老的理念，随着水资源挑战的日益严峻而再次受到关注。人们对湿地水净化在逐渐了解和欣赏。许多城市的湿地公园、运河和湿地区域的质量和维护水平正在逐步提高。

为了在长江三角洲的一个主要城市实施一个城市地表水湿地净水系统，政府水务部门和国家研究院正在寻找一个欧盟地区从事人工湿地和净水工程的技术团队，以加入设计和实施团队。为了提高净水处理技术的效率，他们也正在探索成熟和创新的技术。

项目区位于一个城市湿地公园内（70.5公顷），现状为湿地水塘，大约38公顷可用于湿地和水体净化。本项目的一些特殊净化目标包括：提高水体透明度，控制氨氮指数，每天处理较大量的地表水等。净化后的水体将为城市中心的一个历史运河系统供水。

项目计划于2021年10月前完成。

敬请感兴趣的相关机构或公司于2020年8月25日之前发送一份简介（附加信息最晚29日），其中应包括一个或多个湿地净水案例的介绍，可在欧盟、中国或其他地区。

联系方式：

刘小颖 空间规划顾问，xyliu@natureherit.com，自然颖源设计咨询