Fast Aqueous Biodegradation of Highly-Volatile Organic Compounds in a Novel Anaerobic Reaction Setup
| Autor: | Christophe Bengoa, Agustí Fortuny, Josep Font, Frank Stüber, Yonhara García-Martínez, Azael Fabregat, Judith Chirinos |
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| Přispěvatelé: | Process Intensification, Simulation and Environmental Technology (PISET), Departament d'Enginyeria Química, Universitat Rovira i Virgili, Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
continuous fixed-bed reactor
Continuous fixed-bed reactor Bioconversion Continuous operation Carbó biològicament activat Compostos orgànics volàtils -- Aspectes ambientals Biodegradació 4-dichlorophenoxyacetic acid anaerobic biodegradation lcsh:TD1-1066 chemistry.chemical_compound Chemical engineering Enginyeria química [Àrees temàtiques de la UPC] Bioreactor Volatile organic compounds Anaerobic biodegradation lcsh:Environmental technology. Sanitary engineering biodegradación anaerobia Ecology Evolution Behavior and Systematics General Environmental Science carbón biológicamente activado biodegradació anaerobia Chromatography Aqueous solution 2 4-dichlorophenoxyacetic acid Renewable Energy Sustainability and the Environment Chemistry compostos orgànics volàtils Substrate (chemistry) Ingeniería química Biodegradation Compuestos orgánicos volátiles (COV) Biological activated carbon Chlorobenzene Carbó activat -- Aplicacions científiques biological activated carbon Degradation (geology) chlorobenzene Enginyeria química |
| Zdroj: | Environments Volume 5 Issue 11 Environments, Vol 5, Iss 11, p 115 (2018) UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 2076-3298 |
| DOI: | 10.3390/environments5110115 |
| Popis: | 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&minus 1 d&minus 1 and 0.46 g L&minus 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&ndash Menten model properly describes the degradation process for CB. Above initial concentrations of 100 mg L&minus 1, 2,4-D presented a considerable inhibitory effect over the biofilm. For this reason, a substrate inhibition factor was included in the Michaelis&ndash 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. |
| Databáze: | OpenAIRE |
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