An effective toluene removal from waste-air by a simple process based on absorption in silicone oil (PDMS) and cross-linked Brassica rapa peroxidase (BRP-CLEAs) catalysis in organic medium: Optimization with RSM
| Autor: | Mahmoud Abouseoud, Amina Tassist, Dominique Wolbert, Annabelle Couvert, Nassima Tandjaoui, Abdeltif Amrane |
|---|---|
| Přispěvatelé: | 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 Yahia Fares de Médéa, Université Ibn Khaldoun de Tiaret = University of Tiaret, University of Sciences and Technology 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: | 2020 |
| Předmět: |
0106 biological sciences
Environmental Engineering General Chemical Engineering 010501 environmental sciences 01 natural sciences Catalysis Absorption Box-Behnken design BRP-CLEAs chemistry.chemical_compound [CHIM.GENI]Chemical Sciences/Chemical engineering 010608 biotechnology Brassica rapa enzymatic degradation Environmental Chemistry toluene [CHIM]Chemical Sciences Waste Management and Disposal 0105 earth and related environmental sciences General Environmental Science Water Science and Technology biology [SDE.IE]Environmental Sciences/Environmental Engineering Renewable Energy Sustainability and the Environment Toluene Box–Behnken design Silicone oil chemistry Chemical engineering Scientific method biology.protein Box-Behnken design Absorption (chemistry) absorption Peroxidase |
| Zdroj: | Environmental Progress & Sustainable Energy Environmental Progress & Sustainable Energy, Wiley, 2020, 39 (4), ⟨10.1002/ep.13381⟩ Environmental Progress & Sustainable Energy, 2020, 39 (4), ⟨10.1002/ep.13381⟩ Environmental Progress & Sustainable Energy, 2020, Special Section on Waste Valorization, 39 (4), pp.e13381. ⟨10.1002/ep.13381⟩ |
| ISSN: | 1944-7442 1944-7450 |
| Popis: | International audience; In the present study, absorption in an organic solvent followed by enzymatic biodegradation by cross-linked peroxidase from Brassica rapa (BRP-CLEAs) was successfully applied as a solution for toluene removal from waste-air in batch experiments. Silicone oil (PDMS 47V20) showed a high capacity for toluene absorption, regarding its air-PDMS partition coefficient (2.08 Pa m(3) mol(-1)) when compared to air-water (666 Pa m(3) mol(-1)). Box-Behnken restricted duplicate design was employed for the optimization of the enzymatic degradation of toluene in PDMS. Effects of four independent variables, namely, BRP-CLEAs activity, toluene and hydrogen peroxide concentrations and sonication, were studied by choosing two responses conversion yield and initial rate of reaction. Analysis of the results showed that both hydrogen peroxide and toluene concentrations presented the largest effect on the process while sonication had no effect. On the other hand, the coefficient of determination R-2 and the adjusted R-2 were 0.828 and 0.770 for conversion and 0.919 and 0.911 for initial rate, respectively. The optimum conversion determined was 60% of toluene removal. |
| Databáze: | OpenAIRE |
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