Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors
AbstractThe 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. View Full-Text
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Fuentes, R.; Torregrosa, T.; Ballenilla, E. Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors. Water 2015, 7, 5503-5524.
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.Chicago/Turabian Style
Fuentes, Ramón; Torregrosa, Teresa; Ballenilla, Enrique. 2015. "Conditional Order-m Efficiency of Wastewater Treatment Plants: The Role of Environmental Factors." Water 7, no. 10: 5503-5524.