Fate and removal of emerging contaminants in anaerobic fluidized membrane bioreactor filled with thermoplastic gel as biofilm support
| Autor: | Bruna Chyoshi, Lucia Helena Gomes Coelho, Joan García, Eduardo Lucas Subtil |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient |
| Rok vydání: | 2022 |
| Předmět: |
Anaerobic membrane bioreactor
Diclofenac Environmental Engineering Estradiol Sewage Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health Amoxicillin General Medicine General Chemistry Waste Disposal Fluid Pollution Bioreactors 17a-ethinylestradiol Biofilms Environmental Chemistry Anaerobiosis Enginyeria civil::Enginyeria hidràulica marítima i sanitària::Enginyeria sanitària [Àrees temàtiques de la UPC] 17ß-estradiol AnFMBR Water Pollutants Chemical |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 0045-6535 |
| DOI: | 10.1016/j.chemosphere.2022.134557 |
| Popis: | The Anaerobic Fluidized Membrane Bioreactor (AnFMBR) is a membrane–based hybrid technology that can overcome the limitations of conventional anaerobic sewage treatment. Although previous studies have demonstrated excellent performance in the removal of conventional organic pollutants, further research into the removal paths of emerging contaminants (ECs) under various operating conditions is required for proper design and development of the AnFMBR technology. Regarding this, the fate of four ECs in a lab-scale AnFMBR filled with thermoplastic gel for biofilm growth was investigated under various Hydraulic Retention Time (HRT) conditions. When the HRT was 13 h, diclofenac and 17ß-estradiol were efficiently removed at 93% and 72% respectively. Even after an HRT reduction to 6.5 h, the system was still able to maintain high ECs removals (74% for diclofenac and 69% for 17ß-estradiol). However, irrespective of HRT operational condition, smaller removals of 17a-ethinylestradiol (37–52%) were observed, while only marginal removals of amoxicillin were achieved (5–29%). Biotransformation was attributed as the main route for ECs removal. The results obtained in this study indicate that the membrane-based hybrid AnFMBR can be used to treat the target ECs without influence on anaerobic process. The technology had better removal efficiency for diclofenac and 17ß-estradiol. However, the AnFMBR system exhibits high variability in EC removal and low capacity for amoxicillin removal, implying that a combination of other processes is still required to properly avoid the release of these contaminants into the environment. The authors wish to thank the São Paulo Research Foundation (FAPESP) (Grant number: 2016/23684–0) and the National Council for Scientific and Technological Development (CNPq) (Grant number: 456619/2014–3). The authors are grateful to the Laboratory of Urban Wastewater Treatment and Water Reuse (LabTAUS) and the Multiuser Experimental Central of UFABC (CEM-UFABC) for the experimental support. |
| Databáze: | OpenAIRE |
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