Wetlands provide better value for money and utility than traditional approaches to treating wastewater

| October 17, 2016 | 0 Comments

A recently published paper by Rob McInnes and colleagues in Water and Environment Journal has demonstrated that created wetlands provide a more sustainable solution to the treatment of wastewater than traditional electrical-mechanical approaches. The abstract of the paper states:

Water and land management decisions require consideration ofmultiple factors.Multicriteria decision analysis (MCDA) provides a structured, auditable and transparent tool that helps inform and add rigour to multioption decisions. MCDA was used in a payment for ecosystem services (PES) project to evaluate options for delivering good ecological status in Tortworth Brook, Gloucestershire, UK. Following a process of stakeholder engagement, final options considered were: (1) doing nothing; (2) modifying existing sewage treatment works; (3) a single integrated constructed wetland (ICW) targeting multiple ecosystem service outcomes; and (4) catchment wide multiple ICWs. The analysis concluded that the ‘do nothing’ option and modifying the existing works are both likely to provide poor utility and value for money. Both ICW options offered the greatest utility in terms of optimising the benefits to all stakeholders.

The full paper can be accessed here: http://onlinelibrary.wiley.com/doi/10.1111/wej.12195/full

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