Energy Efficiency Drivers in Wastewater Treatment Plants: A Double Bootstrap DEA Analysis

Andrea Guerrini, Giulia Romano and Alessandro Indipendenza , 2017

The results show that the variables with a significant influence on efficiency are the chemical oxygen demand concentration; plant capacity; rate of used capacity, which positively affects efficiency; weight of industrial customers, which exerts a negative impact; and aeration system, with a negative impact for turbines. This article suggests the adoption of an effective control tool to monitor the costs, drivers and energy expenditure of water utilities.

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