RT info:eu-repo/semantics/article
T1 Measuring the eco-efficiency of wastewater treatment plants under data uncertainty
A1 Gómez, Trinidad
A1 Gémar, Germán
A1 Molinos-Senante, María
A1 Sala-Garrido, Ramón
A1 Caballero, Rafael
AB Eco-efficiency assessment is a useful tool for improving the sustainability of wastewater treatment plants(WWTPs). However, it is a complex task that requires the integration of several performance indicators into a single index. Data envelopment analysis (DEA) is established as a highly effective methodology for achieving this as it permits the integration of the service value, resource consumption and environmental impact variables as the desirable outputs, inputs and undesirable outputs, respectively. However, traditional DEA models omit uncertainties in the data that are likely to result in biased conclusions. This study pioneers the assessment of the eco-efficiency of WWTPs while accounting for the data uncertainty and integrating the greenhouse gas emissions as an undesirable output. The DEA-tolerance model was applied to compute the eco-efficiency scores for 729 scenarios for each facility tested for identifying the best- and worst-case scenarios. The WWTPs were also ranked based on their eco-efficiency scores. The results demonstrated the importance of integrating data uncertainty in eco-efficiency assessments; the performances of the WWTPs change notably based on the evaluated set of scenarios. The proposed methodological approach provides a reliable and robust framework for supporting decision-making processes.
SN 0301-4797
YR 2018
FD 2018
LK https://uvadoc.uva.es/handle/10324/64559
UL https://uvadoc.uva.es/handle/10324/64559
LA spa
NO Journal of Environmental Management, 2018, vol. 226, p. 484–492.
DS UVaDOC
RD 25-nov-2024