Modelling costs for water and sanitation infrastructure: Comparing sanitation options for Can Tho, Vietnam

Publication Type:
Conference Proceeding
The Future of Water, Sanitation and Hygiene in Low-Income Countries: Innovation, Adaptation and Engagement in a Changing World - Proceedings of the 35th WEDC International Conference, 2011
Issue Date:
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Cost effectiveness analysis is a useful tool for comparing water and sanitation infrasfructure options. This method was used to compare a range of sanitation options for the rapidly developing area of South Can Tho in Vietnam. The costs of cenfralised, semi-cenfralised and decenfralised sewer systems were analysed along with several different freatment and sfream separation technologies. The process of estimating and modelling costs can be challenging as considerable data is required, however, by using a variety of cost estimation methods it was possible to undertake a detailed costing assessment to compare very different infrasfructure options over their lifetimes and with reference to the service they provide. The results, which detail net present values and levelised costs in addition to a range of financial perspectives can provide a valuable basis for decision making.
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