2026-04-14T16:58:18Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/623212025-01-30T12:57:37Zcom_10324_35294com_10324_952com_10324_894col_10324_35295

Salamanca Verdugo, Mónica López Serna, Rebeca Palacio Martínez, Laura Hernández Giménez, Antonio Prádanos del Pico, Pedro Lourdes Peña Miranda, María del Mar Agripina 2023-10-25T12:45:24Z 2023-10-25T12:45:24Z 2022 Membranes, 2022, Vol. 12, Nº. 3, 293 2077-0375 https://uvadoc.uva.es/handle/10324/62321 10.3390/membranes12030293 293 3 Membranes 12 2077-0375 Producción Científica 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. Ministerio de Ciencia e Innovación/Agencia Estatal de Investigación (AEI)/10.13039/501100011033 - (project PID2019-109403RBC21) application/pdf eng MDPI info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ © 2022 The Authors Atribución 4.0 Internacional 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 2210.19 Fenómenos de Membrana 5902.08 Política del Medio Ambiente Ecological risk evaluation and removal of emerging pollutants in urban wastewater by a hollow fiber forward osmosis membrane info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.mdpi.com/2077-0375/12/3/293 SI