Author, as appears in the article.: Garcia-Martinez, Yonhara; Chirinos, Judith; Bengoa, Christophe; Stuber, Frank; Font, Josep; Fortuny, Agusti; Fabregat, Azael;
Department: Enginyeria Química
e-ISSN: 2076-3298
URV's Author/s: Bengoa, Christophe José / CHIRINOS CARDENAS, JUDITH ROSANA / Fabregat Llangostera, Azael / Font Capafons, José / Fortuny Sanromà, Agustín / GARCÍA MARTÍNEZ, YONHARA / Stüber, Frank Erich
Keywords: Water samples Volatile organic compounds Soil Removal Microbial-degradation Emerging pollutants Electrochemical oxidation Continuous fixed-bed reactor Compuestos orgánicos volátiles (cov) Compostos orgànics volàtils Chlorobenzene Carbón biológicamente activado Carbó biològicament activat Biological activated carbon Biodegradación anaerobia Biodegradació anaerobia Anaerobic biodegradation Adsorption Activated carbon 2,4-dichlorophenoxyacetic acid 2,4-d 2,4-dichlorophenoxyacetic acid
Abstract: The present work explores the biodegradation of some emerging pollutants (EPs) in an anaerobic slowly-agitated up-flow packed-bed reactor (USPBR) filled with biological activated carbon (BAC). Chlorobenzene (CB) and 2,4-dichlorophenoxyacetic acid (2,4-D) were selected as volatile organic compounds (VOC) and major constituents of many pesticides. Experiments carried out in continuous operation showed that bioconversion up to 90% was achieved for CB and 2,4-D, at space times below 0.6 h and 1.2 h, respectively, at ambient temperature. Overall, removal rates of 0.89 g L-1 d(-1) and 0.46 g L-1 d(-1) were obtained for CB and 2,4-D, respectively. These results revealed that the degradation of CB and 2,4-D in this anaerobic configuration of bioreactor is an efficient and fast process. The Michaelis-Menten model properly describes the degradation process for CB. Above initial concentrations of 100 mg L-1, 2,4-D presented a considerable inhibitory effect over the biofilm. For this reason, a substrate inhibition factor was included in the Michaelis-Menten equation; the expanded model presented a good fitting to the experimental data, regardless of the inlet concentration. Therefore, USPBR-BAC combination showed to be a highly efficient system for the biodegradation of such compounds.
Thematic Areas: Renewable energy, sustainability and the environment Management, monitoring, policy and law Geography, planning and development General environmental science Environmental sciences Environmental science (miscellaneous) Environmental science (all) Ecology, evolution, behavior and systematics Ecology Ciencias sociales
licence for use: thttps://creativecommons.org/licenses/by/3.0/es/
ISSN: 07116780
Author's mail: agustin.fortuny@urv.cat frankerich.stuber@urv.cat christophe.bengoa@urv.cat afabrega@urv.cat jose.font@urv.cat
Author identifier: 0000-0001-9424-1400 0000-0001-9160-5010 0000-0002-5525-5401 0000-0002-4007-7905
Record's date: 2024-09-28
Journal volume: 5
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/2076-3298/5/11/115
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Environments. 5 (11): 1-15
APA: Garcia-Martinez, Yonhara; Chirinos, Judith; Bengoa, Christophe; Stuber, Frank; Font, Josep; Fortuny, Agusti; Fabregat, Azael; (2018). Fast Aqueous Biodegradation of Highly-Volatile Organic Compounds in a Novel Anaerobic Reaction Setup. Environments, 5(11), 1-15. DOI: 10.3390/environments5110115
Article's DOI: 10.3390/environments5110115
Entity: Universitat Rovira i Virgili
Journal publication year: 2018
Publication Type: Journal Publications
Repositori URV