Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors
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Título: | Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors |
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Autor/es: | Fuentes Pascual, Ramón | Torregrosa, Teresa | Ballenilla, Enrique |
Grupo/s de investigación o GITE: | Economía del Turismo, Recursos Naturales y Nuevas Tecnologías (INNATUR) | Recursos Hídricos y Desarrollo Sostenible |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Análisis Económico Aplicado |
Palabras clave: | Conditional efficiency | Exogenous variables | Free disposal hull (FDH) | Order-m | Robust estimation | Wastewater |
Área/s de conocimiento: | Economía Aplicada |
Fecha de publicación: | 15-oct-2015 |
Editor: | MDPI |
Cita bibliográfica: | Fuentes R, Torregrosa T, Ballenilla E. Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors. Water. 2015, 7(10): 5503-5524. doi:10.3390/w7105503 |
Resumen: | The growing economic and environmental importance of managing water resources at a global level also entails greater efforts and interest in improving the functioning and efficiency of the increasingly more numerous wastewater treatment plants (WWTPs). In this context, this study analyzes the efficiency of a uniform sample of plants of this type located in the region of Valencia (Spain). The type of efficiency measure used for this (conditional order-m efficiency) allows continuous and discrete contextual variables to be directly involved in the analysis and enables the assessment of their statistical significance and effect (positive or negative). The main findings of the study showed that the quality of the influent water and also the size and age of the plants had a significant influence on their efficiency levels. In particular, as regards the effect of such variables, the findings pointed to the existence of an inverse relationship between the quality of the influent water and the efficiency of the WWTPs. Also, a lower annual volume of treated water and more modern installations showed a positive influence. Additionally, the average efficiency levels observed turned out to be higher than those reported in previous studies. |
URI: | http://hdl.handle.net/10045/50405 |
ISSN: | 2073-4441 |
DOI: | 10.3390/w7105503 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2015 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.3390/w7105503 |
Aparece en las colecciones: | INV - INNATUR - Artículos de Revistas INV - Recursos Hídricos y Desarrollo Sostenible - Artículos de Revistas |
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