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Greywater recycling: Treatment options and applications

By M. Pidou, Memon F. A., T. Stephenson, B. Jefferson and P. Jeffrey


Wastewater is an immense resource that could find significant applications in regions of water scarcity. Greywater has particular advantages in that it is a large source with a low organic content. Through critical analysis of data from existing greywater recycling applications, this paper presents a review of existing technologies and applications by collating a disparate information base and comparing/contrasting the strengths and weaknesses of different approaches. Simple technologies and sand filters have been shown to have a limited effect on greywater; membranes are reported to provide good solids removal but cannot efficiently tackle the organic fraction. Alternatively, biological and extensive schemes achieve a good general treatment of greywater with particularly effective removal of organics. The best overall performances were observed within schemes that combine different types of methods to ensure effective treatment of all the fractions

Topics: Recycling and reuse of materials, Water supply, Waste management and disposal
Publisher: ICE Publishing
Year: 2007
DOI identifier: 10.1680/ensu.2007.160.3.119
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