RT info:eu-repo/semantics/article
T1 A comprehensive assessment of energy efficiency of wastewater treatment plants: An efficiency analysis tree approach
A1 Maziotis, Alexandros
A1 Sala Garrido, Ramón
A1 Mocholi Arce, Manuel
A1 Molinos Senante, María
K1 Aguas residuales Depuración
K1 Medio ambiente Estudios de impacto
K1 Eficiencia energética
K1 Energy efficiency
K1 Energy savings
K1 Regression trees
K1 Wastewater treatment plants
K1 Eficiencia energética
K1 Ahorro energético
K1 Árboles de regresión
K1 Plantas depuradoras de aguas residuales
K1 3308 Ingeniería y Tecnología del Medio Ambiente
K1 3305.15 Ingeniería Hidráulica
AB Wastewater treatment plants (WWTPs) are energy intensive facilities. Controlling energy use in WWTPs could bring substantial benefits to people and environment. Understanding how energy efficient the wastewater treatment process is and what drives efficiency would allow treating wastewater in a more sustainable way. In this study, we employed the efficiency analysis trees approach, that combines machine learning and linear programming techniques, to estimate energy efficiency of wastewater treatment process. The findings indicated that considerable energy inefficiency among WWTPs in Chile existed. The mean energy efficiency was 0.287 suggesting that energy use should cut reduce by 71.3 % to treat the same volume of wastewater. This was equivalent to a reduction in energy use by 0.40 kWh/m3 on average. Moreover, only 4 out of 203 assessed WWTPs (1.97 %) were identified as energy efficient. It was also found that the age of treatment plant and type of secondary technology played an important role in explaining energy efficiency variations among WWTPs.
PB Elsevier
SN 0048-9697
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/59486
UL https://uvadoc.uva.es/handle/10324/59486
LA eng
NO Science of The Total Environment, 2023,vol. 885, 163539
NO Producción Científica
DS UVaDOC
RD 24-dic-2024