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Evaluating the eco-efficiency of wastewater treatment plants: comparison of optimistic and pessimistic approaches

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Evaluating the eco-efficiency of wastewater treatment plants: comparison of optimistic and pessimistic approaches

dc.contributor.author	Mocholi Arce, Manuel
dc.contributor.author	Gómez, Trinidad
dc.contributor.author	Molinos Senante, María
dc.contributor.author	Sala Garrido, Ramón
dc.contributor.author	Caballero, Rafael
dc.date.accessioned	2022-05-02T09:24:54Z
dc.date.available	2022-05-03T04:45:07Z
dc.date.issued	2020	es_ES
dc.identifier.citation	Mocholi-Arce M, Gómez T, Molinos-Senante M, Sala-Garrido R, Caballero R. Evaluating the Eco-Efficiency of Wastewater Treatment Plants: Comparison of Optimistic and Pessimistic Approaches. Sustainability. 2020; 12(24):10580.	es_ES
dc.identifier.uri	https://hdl.handle.net/10550/82488
dc.description.abstract	The assessment of wastewater treatment plant (WWTP) performance has gained the interest of water utilities and water regulators. Eco-efficiency has been identified as a powerful indicator, as it integrates economic and environmental variables into a single index. Most previous studies have employed traditional data envelopment analysis (DEA) for the evaluation of WWTP eco-efficiency. However, DEA allows the selection of input and output weights for individual WWTPs for the calculation of eco-efficiency scores. To overcome this limitation, we employed the double-frontier and common set of weights methods to evaluate the eco-efficiency of a sample of 30 WWTPs in Spain. The WWTPs were ranked based on eco-efficiency scores derived under several scenarios including best- and worst-case scenarios; this approach to performance assessment is reliable and robust. Twenty-six of the 30 WWTPs were not classified as eco-efficient, even under the most favorable scenario, indicating that these facilities have substantial room for the reduction of costs and greenhouse gas emissions. The ranking of WWTPs varied according to the scenario used for evaluation, which has notable consequences when eco-efficiency scores are used for regulatory purposes. The findings of this study are relevant for water regulators and water utilities, as they demonstrate the importance of weight allocation for eco-efficiency score estimation.	es_ES
dc.language.iso	en	es_ES
dc.subject	eco-efficiency	es_ES
dc.subject	wastewater treatment plant	es_ES
dc.subject	data envelopment analysis	es_ES
dc.subject	regulation	es_ES
dc.subject	sustainability	es_ES
dc.subject	greenhouse gas emission	es_ES
dc.title	Evaluating the eco-efficiency of wastewater treatment plants: comparison of optimistic and pessimistic approaches	es_ES
dc.type	journal article	es_ES
dc.subject.unesco	UNESCO::CIENCIAS ECONÓMICAS	es_ES
dc.identifier.doi	10.3390/su122410580	es_ES
dc.accrualmethod	S	es_ES
dc.embargo.terms	0 days	es_ES