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.
|Title of host publication||Proceedings of the International Conference|
|Subtitle of host publication||Wastewater Management & Technologies for Highly Urbanized Coastal Cities 2002|
|Place of Publication||Hong Kong|
|Publisher||Hong Kong Polytechnic University|
|ISBN (Print)||9623673531 , 9789623673532|
|Publication status||Published - 10 Jun 2002|