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- W4213425671 abstract "Abstract Wastewater treatment plants constitute an essential part of the sewage system. They have the role of removing pollutants from wastewater to enable the safe disposal of the treated effluent in the natural environment. This research seeks to evaluate plants' efficiency and effectiveness, which involves minimizing energy consumption while obtaining a quality level of the treated water aligned with legislation requirements. We explore two policy scenarios regarding the measurement of effluent quality. The first assumes that pollutants' emission quotas (EQs) are fixed at each plant. The second assumes that quotas are set for the receiving waters (e.g., river or watercourse in the natural environment) so that trade‐offs in EQs among plants sharing the same discharge site are possible. This latter scenario requires a system‐wide analysis to identify optimal targets for pollutants removal at each plant that allow fulfilling the expected average quality levels of the effluent discharged. This paper develops a methodology to fully realize the potential for energy savings based on an innovative mixed‐integer linear programming model. This model follows the data envelopment analysis axioms to estimate the frontier of the production possibility set. The approach proposed is tested in a real‐world context using the plants of a Portuguese water company. The results show that the two scenarios combining efficiency and effectiveness perspectives have advantages in terms of energy savings compared to the conventional situation focused only on efficiency gains. The saving potential is slightly higher in the scenario allowing reallocation of EQs among plants." @default.
- W4213425671 created "2022-02-25" @default.
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- W4213425671 date "2022-02-24" @default.
- W4213425671 modified "2023-09-28" @default.
- W4213425671 title "A system‐level optimization framework for efficiency and effectiveness improvement of wastewater treatment plants" @default.
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- W4213425671 doi "https://doi.org/10.1111/itor.13129" @default.
- W4213425671 hasPublicationYear "2022" @default.
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