RT info:eu-repo/semantics/article
T1 Ecological risk evaluation and removal of emerging pollutants in urban wastewater by a hollow fiber forward osmosis membrane
A1 Salamanca Verdugo, Mónica
A1 López Serna, Rebeca
A1 Palacio Martínez, Laura
A1 Hernández Giménez, Antonio
A1 Prádanos del Pico, Pedro Lourdes
A1 Peña Miranda, María del Mar Agripina
K1 Urban water
K1 Wastewater
K1 Water pollution
K1 Agua - Contaminación
K1 Water treatment
K1 Aguas residuales - Depuración y tratamiento
K1 Membranes (Technology)
K1 Osmosis
K1 Organic water pollutants
K1 Organic matter
K1 Contaminants of emerging concern
K1 Pollutants - Environmental aspects
K1 Environmental management
K1 Gestión ambiental
K1 Sustainable development
K1 Desarrollo sostenible
K1 Ecological risk assessment
K1 Medio ambiente - Contaminación
K1 2210.19 Fenómenos de Membrana
K1 5902.08 Política del Medio Ambiente
AB 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.
PB MDPI
SN 2077-0375
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/62321
UL https://uvadoc.uva.es/handle/10324/62321
LA eng
NO Membranes, 2022, Vol. 12, Nº. 3, 293
NO Producción Científica
DS UVaDOC
RD 12-sep-2024