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Título
Ecological risk evaluation and removal of emerging pollutants in urban wastewater by a hollow fiber forward osmosis membrane
Autor
Año del Documento
2022
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Membranes, 2022, Vol. 12, Nº. 3, 293
Zusammenfassung
Forward osmosis (FO) is a promising technology for the treatment of urban wastewater. FO can produce high-quality effluents and preconcentrate urban wastewater for subsequent anaerobic treatment. This membrane technology makes it possible to eliminate the pollutants present in urban wastewater, which can cause adverse effects in the ecosystem even at low concentrations. In this study, a 0.6 m2 hollow fiber aquaporin forward osmosis membrane was used for the treatment of urban wastewater from the Valladolid wastewater treatment plant (WWTP). A total of 51 Contaminants of Emerging Concern (CECs) were investigated, of which 18 were found in the target urban wastewater. They were quantified, and their ecotoxicological risk impact was evaluated. Different salts with different concentrations were tested as draw solutions to evaluate the membrane performances when working with pretreated urban wastewater. NaCl was found to be the most appropriate salt since it leads to higher permeate fluxes and lower reverse saline fluxes. The membrane can eliminate or significantly reduce the pollutants present in the studied urban wastewater, producing water without ecotoxicological risk or essentially free of pollutants. In all cases, good recovery was achieved, which increased with molecular weight, although chemical and electrostatic interactions also played a role.
Materias (normalizadas)
Urban water
Wastewater
Water pollution
Agua - Contaminación
Water treatment
Aguas residuales - Depuración y tratamiento
Membranes (Technology)
Osmosis
Organic water pollutants
Organic matter
Contaminants of emerging concern
Pollutants - Environmental aspects
Environmental management
Gestión ambiental
Sustainable development
Desarrollo sostenible
Ecological risk assessment
Medio ambiente - Contaminación
Materias Unesco
2210.19 Fenómenos de Membrana
5902.08 Política del Medio Ambiente
ISSN
2077-0375
Revisión por pares
SI
Patrocinador
Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (project PID2019-109403RBC21)
Version del Editor
Propietario de los Derechos
© 2022 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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