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Author(s): C. Santos
F. Taveira Pinto
C. Y. Cheng
D. Leite
Title: Development of an experimental system for greywater reuse
Issue Date: 2012
Abstract: Greywater reuse promotes a significant reduction in potable water consumption and sewage production, once the water is used a second time for non potable purposes prior of being discharged to the sewer system. However, its quality must assure the user's safety and thus a treatment system is necessary.The present article presents a study on a low cost and easy maintenance experimental system for greywater reuse with a collection tank and a treatment system composed of a pump, filter and UV disinfection. The objectives of this study include analysis of the treatment efficiency and assessment of the quality potential of treated greywater. For this study, raw greywater was collected from washing basins of public and exclusive access toilets as well as from showers of a changing room.The experimental treatment system showed potential for greywater recovery, because of the simple, low-cost and easy maintenance features, and also because it provides high reduction of SS, COD and BOD. More significantly, no total or fecal coliforms were detected in all treated greywater samples. However, concentrations of SS and BOD after treatment were not low enough to reach the limits presented in legal and reference documents, hence further improvement procedures are suggested.
Subject: Engenharia hidraúlica, Engenharia civil
Hydraulic engineering, Civil engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia civil
Engineering and technology::Civil engineering
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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