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Metals in greywater: Sources, presence and removal efficiencies
Technical University of Denmark, Denmark.ORCID-id: 0000-0002-5472-8553
Middlesex University, UK.ORCID-id: 0000-0001-6465-2233
2009 (engelsk)Inngår i: Desalination, ISSN 0011-9164, E-ISSN 1873-4464, Vol. 248, nr 1-3, s. 271-278Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

To date, risk assessment for greywater reuse systems has almost exclusively been focussed on pathogenic microorganisms and conventional water quality parameters. Little is known about the risks from micropollutants present in greywater, nor about the potential for greywater treatment systems to act as barriers for micropollutants. In this paper, the sources, presence and potential fate of cadmium, mercury, lead, and nickel in onsite greywater treatment systems are investigated. Annual metal loads from bathroom greywater are small in comparison with typical municipal wastewater loads but still do not always meet environmental quality standards for surface waters. This study shows that onsite treatment may remove a third to a half of lead, mercury and nickel from bathroom greywater but showed no significant removal of cadmium. Geochemical modelling indicates that metals should not pose a problem for reuse in toilet flushing, irrigation and clothes washing. Rather, the major potential problems associated with the presence of metals in greywater are related to the issue of sludge disposal.

sted, utgiver, år, opplag, sider
2009. Vol. 248, nr 1-3, s. 271-278
Emneord [en]
Annual loads, Grey wastewater, Greywater, Heavy metals, Priority pollutants, Source analysis
HSV kategori
Forskningsprogram
Naturvetenskap, Miljövetenskap
Identifikatorer
URN: urn:nbn:se:lnu:diva-66715DOI: 10.1016/j.desal.2008.05.065OAI: oai:DiVA.org:lnu-66715DiVA, id: diva2:1120000
Tilgjengelig fra: 2017-07-05 Laget: 2017-07-05 Sist oppdatert: 2017-11-15bibliografisk kontrollert

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