RT info:eu-repo/semantics/article
T1 Analysis of the energy flow in a municipal wastewater treatment plant based on a supercritical water oxidation reactor coupled to a gas turbine
A1 Mato Chaín, Fidel Antonio
A1 Peña Miranda, María del Mar Agripina
A1 García Rodríguez, Yoana
A1 Bermejo Roda, Maria Dolores
A1 Martín Martínez, Ángel
K1 Simulación, Métodos de
K1 Agua - Calidad
K1 Aguas residuales - Depuración
K1 Ultrafiltration
K1 Evaporation
K1 Oxidación
K1 Cogeneration of electric power and heat
K1 Process simulation
K1 3303 Ingeniería y Tecnología Químicas
K1 3308.10 Tecnología de Aguas Residuales
AB Biological municipal wastewater treatments lead to high sludge generation and long retention times, and the possibilities for recovery of the energy content of the input waste stream are very limited due to the low operating temperature. As an alternative, we propose a sequence of exclusively physicochemical, non-biological stages that avoid sludge production, while producing high-grade energy outflows favoring recovery, all in shorter times. Ultrafiltration and evaporation units provide a front-end concentration block, while a supercritical water oxidation reactor serves as the main treatment unit. A new approach for energy recovery from the effluent of the reactor is proposed, based on its injection in a gas turbine, which presents advantages over simpler direct utilization methods from operational and efficiency points of view. A process layout and a numerical simulation to assess this proposal have been developed. Results show that the model process, characterized with proven operating parameters, found a range of feasible solutions to the treatment problem with similar energy costs, at a fast speed, without sludge production, while co-generating the municipality’s average electricity consumption.
PB MDPI
SN 2227-9717
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/59477
UL https://uvadoc.uva.es/handle/10324/59477
LA eng
NO Processes, 2021, Vol. 9, Nº. 7, 1237
NO Producción Científica
DS UVaDOC
RD 12-sep-2024