Cost-Effectiveness Analysis of Sewer Mining versus Centralized Wastewater Treatment: Case Study of Arga River Basin (Spain)

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URI: http://hdl.handle.net/10902/7967
ISSN: 1744-9006
ISSN: 1573-062X
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Autoría
González Viar, MartaAutoridad Unican; Díez Montero, RubénAutoridad Unican; Molinos Senante, María; De Florio, Loredana; Esteban García, Ana LorenaAutoridad Unican; Sala Garrido, Ramón; Hernández Sancho, Francesc; Tejero Monzón, IñakiAutoridad Unican
Fecha
2015-01-03
Derechos
© Taylor & Francis . "This is an Accepted Manuscript of an article published by Taylor & Francis in Urban Water Journal on January , 2016, available online: http://wwww.tandfonline.com/10.1080/1573062X.2014.991742."
Publicado en
Urban Water Journal, Vol. 13, No.3, (April 2016), p. 321-330
Editorial
Taylor & Francis
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Palabras clave
Cost-effectiveness analysis
Hybrid membrane bioreactor
Sewer mining
Economics
Decentralized wastewater treatment
Resumen/Abstract
ABSTRACT:In the context of the EU Water Framework Directive, a Cost-Effectiveness Analysis (CEA) was performed to compare centralized and decentralized wastewater treatment strategies aimed to improve the ecological status of a Spanish river. The implementation of several hybrid membrane bioreactors within the urban framework for sewer mining (SM) was compared with the more common wastewater treatment plant enlargement option. The assessment ranked 6 alternatives based on 12 potential scenarios, aimed at narrowing the uncertainty of the CEA. The cost analysis illustrated that SM is the most expensive option regarding both investment and operation and maintenance costs. However, the effectiveness of the alternatives evaluated depends significantly on the scenarios considered, being SM the most effective in most cases. Finally, the cost-effectiveness ratio showed SM as the best cost-effective alternative. CEA provides an ecological-economic indicator useful to prioritize wastewater treatment alternatives to achieve a given objective.
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