The implications of household greywater treatment and reuse for municipal wastewater flows and micropollutant loads

Michael Revitt, Eva Eriksson, Erica Donner

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    Abstract

    An increasing worldwide interest in water recycling technologies such as greywater treatment and reuse suggests that additional research to elucidate the fate of xenobiotics during such practices would be beneficial. In this paper, scenario analyses supported by empirical data are used for highlighting the potential fate of a election of xenobiotic micropollutants in decentralised greywater treatment systems, and for investigation of the possible implications of greywater recycling for the wider urban water cycle. Potential potable water savings of up to 43% are predicted for greywater recycling based on Danish water use statistics and priority substance monitoring at a greywater treatment plant in Denmark. Adsorption represents an important mechanism for the removal of cadmium, nickel, lead and nonylphenol from influent greywater and therefore the disposal route adopted for the generated sludge can exert a major impact on the overall efficiency and environmental sustainability of greywater treatment. © 2010 Elsevier Ltd. All rights reserved.
    Original languageEnglish
    JournalWater Research
    Volume45
    Issue number4
    Pages (from-to)1549-1560
    ISSN0043-1354
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Greywater treatment
    • Priority substances
    • Wastewater influent
    • Sludge disposal
    • Recycling
    • Scenario analyses

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