A combination of absorption and enzymatic biodegradation phenol elimination from aqueous and organic phase
| Autor: | Nassima Tandjaoui, Abdeltif Amrane, Mahmoud Abouseoud, Amina Tassist, Annabelle Couvert |
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| Přispěvatelé: | Université Yahia Fares de Médéa, Institut des Sciences Chimiques de Rennes ( ISCR ), Université de Rennes 1 ( UR1 ), Université de Rennes ( UNIV-RENNES ) -Université de Rennes ( UNIV-RENNES ) -Ecole Nationale Supérieure de Chimie de Rennes-Institut National des Sciences Appliquées ( INSA ) -Centre National de la Recherche Scientifique ( CNRS ), Université des Sciences et de la Technologie Houari Boumediene [Alger] ( USTHB ), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0208 environmental biotechnology
silicone oil 02 engineering and technology 010501 environmental sciences 01 natural sciences biodegradation [ CHIM ] Chemical Sciences BRP-CLEAs chemistry.chemical_compound Phenols Environmental Chemistry Phenol [CHIM]Chemical Sciences aqueous medium Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Volatile Organic Compounds Chromatography Aqueous solution biology General Medicine Hydrogen Peroxide Biodegradation Silicone oil 020801 environmental engineering Biodegradation Environmental chemistry Yield (chemistry) biology.protein Degradation (geology) Absorption (chemistry) absorption Peroxidase |
| Zdroj: | Environmental Technology Environmental Technology, 2017, pp.1-8. 〈10.1080/09593330.2017.1400110〉 Environmental Technology, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2019, 40 (5), pp.625-632. ⟨10.1080/09593330.2017.1400110⟩ Environmental Technology, 2019, 40 (5), pp.625-632. ⟨10.1080/09593330.2017.1400110⟩ |
| ISSN: | 0959-3330 1479-487X |
| Popis: | International audience; Peroxidase from Brassica rapa was immobilized as cross-linked enzyme aggregates (CLEAs) and used to treat air containing phenol as a model molecule of volatile organic compounds (VOCs). Prior to an enzymatic treatment, phenol was absorbed into an aqueous or organic phase (silicone oil) to reach concentrations ranging from 20 to 160 mg/L. The process was carried out by introducing a desired weighing of BRP-CLEAs into preparations and reaction was started by injecting HO solution to the medium. Optimization of the reaction conditions in the organic solvent revealed an optimal contact time of 60 min, 60 mg/L of phenol concentration and 3 mM HO, leading to a maximum removal yield of 70% for 3.4 UI/mL of BRP-CLEAs. These results were compared to those obtained in an aqueous medium that showed 90% of degradation yield after 40 min in the following conditions, 90 mg/L of initial phenol amount, 2 mM of HO and 2.5 UI/mL of BRP-CLEAs. Parameters of the Michaelis-Menten model, Km and Vmax, were also determined for the reaction in both phases. Phenol removal by BRP-CLEAs in silicone oil succeeded with 70% of conversion yield. It is promising regarding the transposition of such enzymatic process to hydrophobic VOCs. |
| Databáze: | OpenAIRE |
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