{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Pompa-Pernia A"],"funding":["Ministerio de Ciencia, Innovación y Universidades","ERDF A way of making Europe","Agencia Estatal de Investigación","European Social Fund: Investing in your future"],"pagination":["174"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11356002"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14(8)"],"pubmed_abstract":["The persistent presence of micro- and nanoplastics (MNPs) in aquatic environments, particularly via effluents from wastewater treatment plants (WWTPs), poses significant ecological risks. This study investigated the removal efficiency of polystyrene nanoplastics (PS-NPs) using a lab-scale aerobic membrane bioreactor (aMBR) equipped with different membrane types: microfiltration (MF), commercial ultrafiltration (c-UF), and recycled ultrafiltration (r-UF) membranes. Performance was assessed using synthetic urban wastewater spiked with PS-NPs, focusing on membrane efficiency, fouling behavior, and microbial community shifts. All aMBR systems achieved high organic matter removal, exceeding a 97% COD reduction in both the control and PS-exposed reactors. While low concentrations of PS-NPs did not significantly impact the sludge settleability or soluble microbial products initially, a higher accumulation increased the carbohydrate concentrations, indicating a protective bacterial response. The microbial community composition also adapted over time under polystyrene stress. All membrane types exhibited substantial NP removal; however, the presence of nano-sized PS particles negatively affected the membrane performance, enhancing the fouling phenomena and increasing transmembrane pressure. Despite this, the r-UF membrane demonstrated comparable efficiency to c-UF, suggesting its potential for sustainable applications. Advanced characterization techniques including pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) were employed for NP detection and quantification."],"journal":["Membranes"],"pubmed_title":["Treatment of Synthetic Wastewater Containing Polystyrene (PS) Nanoplastics by Membrane Bioreactor (MBR): Study of the Effects on Microbial Community and Membrane Fouling."],"pmcid":["PMC11356002"],"funding_grant_id":["PRE2019-088421","RTI2018-096042-B-C21","PID2022-143233OB-I00","PID2019-111519RA-I00"],"pubmed_authors":["Molina S","Landaburu-Aguirre J","Cherta L","Pompa-Pernia A","Martinez-Garcia L"],"additional_accession":[]},"is_claimable":false,"name":"Treatment of Synthetic Wastewater Containing Polystyrene (PS) Nanoplastics by Membrane Bioreactor (MBR): Study of the Effects on Microbial Community and Membrane Fouling.","description":"The persistent presence of micro- and nanoplastics (MNPs) in aquatic environments, particularly via effluents from wastewater treatment plants (WWTPs), poses significant ecological risks. This study investigated the removal efficiency of polystyrene nanoplastics (PS-NPs) using a lab-scale aerobic membrane bioreactor (aMBR) equipped with different membrane types: microfiltration (MF), commercial ultrafiltration (c-UF), and recycled ultrafiltration (r-UF) membranes. Performance was assessed using synthetic urban wastewater spiked with PS-NPs, focusing on membrane efficiency, fouling behavior, and microbial community shifts. All aMBR systems achieved high organic matter removal, exceeding a 97% COD reduction in both the control and PS-exposed reactors. While low concentrations of PS-NPs did not significantly impact the sludge settleability or soluble microbial products initially, a higher accumulation increased the carbohydrate concentrations, indicating a protective bacterial response. The microbial community composition also adapted over time under polystyrene stress. All membrane types exhibited substantial NP removal; however, the presence of nano-sized PS particles negatively affected the membrane performance, enhancing the fouling phenomena and increasing transmembrane pressure. Despite this, the r-UF membrane demonstrated comparable efficiency to c-UF, suggesting its potential for sustainable applications. Advanced characterization techniques including pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) were employed for NP detection and quantification.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Aug","modification":"2025-04-26T21:18:51.748Z","creation":"2025-04-06T16:46:50.747Z"},"accession":"S-EPMC11356002","cross_references":{"pubmed":["39195426"],"doi":["10.3390/membranes14080174"]}}