Understanding the role of vegetation in nitrogen removal by biofiltration

由于过量的氮负荷，特别是来自城市雨水的氮负荷，澳大利亚的许多海湾和水道受到富营养化的威胁。生物过滤系统是一种广泛使用的、潜在有效的处理方法（仅墨尔本水务公司就有一个与市政当局合作在未来5年内建造10000个系统的计划），但它们的氮去除高度依赖于所使用的植被类型。该项目将提高人们对植被在雨水生物过滤器蓄氮中的作用的认识，从而为生物过滤器的植物选择和设计提供重要的指导。

Many of Australia's bays and waterways are threatened by eutrophication due to excess nitrogen loads, particularly from urban stormwater. Biofiltration systems are a widely used (Melbourne Water alone has a programme of constructing 10000 systems in partnership with municipalities over the next 5 years) and potentially effective treatment, but their nitrogen removal is highly dependent on the type of vegetation used. This project will improve the understanding of the role of vegetation in nitrogen retention by stormwater biofilters, and will thus provide important guidance on plant selection and design for biofiltration.