Financial viability of in-building grey water recycling

David Butler, Andrew M. Dixon

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    There is a growing interest worldwide in utilising water more efficiently. This paper presents a study undertaken to explore the financial aspects of an in-building water re-use system. The financial issues are defined in terms of: capital costs, running costs, maintenance costs and water saving benefits. A model was developed to allow the user to specify factors pertinent to a net present value calculation and to map the viability space (i.e. the set of conditions required for the re-use system to be financially viable). The most important variable was found to be the annual maintenance cost. A scoring system was developed to indicate the degree of financial viability. Use of the model is explained by the application of three example cases.
    Original languageEnglish
    Title of host publicationInternational Conference on Wastewater Management Technologies for Highly Urbanized Cities
    Publication statusPublished - 2002

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