A COMPRENHESIVE ECO-EFFICIENCY ANALYSIS OF WASTEWATER TREATMENT PLANTS: ESTIMATION OF OPTIMAL OPERATIONAL COSTS AND GREENHOUSE GAS EMISSIONS

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dc.contributor.authorMaziotis, Alexandros
dc.contributor.authorMolinos-Senante, Maria
dc.date.accessioned2025-01-20T20:06:04Z
dc.date.available2025-01-20T20:06:04Z
dc.date.issued2023
dc.description.abstractThe transition to a neutral carbon and sustainable urban water cycle requires improving eco-efficiency in wastewater treatment processes. To support decision-making based on eco-efficiency evaluations, reliable estimations are fundamental. In this study, the eco-efficiency of a sample of 109 WWTPs was evaluated using efficiency analysis tree method. It combines machine learning and linear programming techniques and therefore, overcomes overfitting limitations of non-parametric methods used by past research on this topic. Results from the case study revealed that optimal costs and greenhouse gas emissions depend on the quantity of organic matter and suspended solids removed from wastewater. The estimated average eco-efficiency is 0.373 which involves that the assessed WWTPs could save 0.32 euro/m3 and 0.11 kg of CO2 equivalent/m3. Moreover, only 4 out of 109 WWTPs are identified as eco-efficient which implies that the majority of the evaluated facilities can achieve substantial savings in operational costs and greenhouse gas emissions.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.watres.2023.120354
dc.identifier.eissn1879-2448
dc.identifier.issn0043-1354
dc.identifier.urihttps://doi.org/10.1016/j.watres.2023.120354
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91733
dc.identifier.wosidWOS:001063632900001
dc.language.isoen
dc.revistaWater research
dc.rightsacceso restringido
dc.subjectEco-efficiency
dc.subjectGreenhouse gas emissions savings
dc.subjectRegression trees
dc.subjectLinear programming
dc.subjectWastewater treatment plants
dc.subjectEconomics
dc.subject.ods09 Industry, Innovation and Infrastructure
dc.subject.odspa09 Industria, innovación e infraestructura
dc.titleA COMPRENHESIVE ECO-EFFICIENCY ANALYSIS OF WASTEWATER TREATMENT PLANTS: ESTIMATION OF OPTIMAL OPERATIONAL COSTS AND GREENHOUSE GAS EMISSIONS
dc.typeartículo
dc.volumen243
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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