Constructed wetlands for stormwater management in the UK: a concise review

Abstract

The use of constructed wetlands (CWs) for stormwater management is growing due to the need for sustainable water use and to prevent damage to local watercourses caused by the pollutants collected and transported by runoff. However, despite their increased use around the world, there is a lack of information regarding the use of CWs for stormwater management in the UK. This study reviews the application of CW systems for stormwater management in the UK by examining the design, treatment performance and challenges associated with their use, while drawing comparisons with the rest of the world. The review indicates that although CWs have the potential for cost-effective and efficient stormwater management in the UK, there are several challenges that must be overcome to allow their widespread implementation. These include (i) a lack of design codes and unified guidelines; (ii) ambiguities regarding drainage responsibilities and land use issues and (iii) land availability.