Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation
In order to effectively improve the degradation rate of diesel, a systematic analysis of the degradation mechanism used by immobilized bacteria is necessary. In the present study, diesel degradation mechanisms were assessed by analyzing permeability, biodegradation, adsorption kinetics, and molecula...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-04-01
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| Series: | Environmental Science and Ecotechnology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S266649842030020X |
| _version_ | 1818677500638658560 |
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| author | Xinge Fu Huajun Wang Yu Bai Jianliang Xue Yu Gao Shugang Hu Tongtong Wu Jingkuan Sun |
| author_facet | Xinge Fu Huajun Wang Yu Bai Jianliang Xue Yu Gao Shugang Hu Tongtong Wu Jingkuan Sun |
| author_sort | Xinge Fu |
| collection | DOAJ |
| description | In order to effectively improve the degradation rate of diesel, a systematic analysis of the degradation mechanism used by immobilized bacteria is necessary. In the present study, diesel degradation mechanisms were assessed by analyzing permeability, biodegradation, adsorption kinetics, and molecular simulation. We found that bacteria immobilized on cinnamon shells and peanut shells degraded relatively high amounts of diesel (69.94% and 64.41%, respectively). The primary degradation pathways used by immobilized bacteria included surface adsorption, internal uptake, and biodegradation. Surface adsorption was dominant in the early stage of degradation, whereas biodegradation was dominant in later stages. The diesel adsorption rate of the immobilized bacteria was in agreement with the pseudo second-order kinetic model. The immobilized bacteria and diesel interacted through hydrogen bonds. |
| first_indexed | 2024-12-17T09:00:22Z |
| format | Article |
| id | doaj.art-6262a468aece48e9b2a950135bb90a20 |
| institution | Directory Open Access Journal |
| issn | 2666-4984 |
| language | English |
| last_indexed | 2024-12-17T09:00:22Z |
| publishDate | 2020-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environmental Science and Ecotechnology |
| spelling | doaj.art-6262a468aece48e9b2a950135bb90a202022-12-21T21:55:45ZengElsevierEnvironmental Science and Ecotechnology2666-49842020-04-012100028Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulationXinge Fu0Huajun Wang1Yu Bai2Jianliang Xue3Yu Gao4Shugang Hu5Tongtong Wu6Jingkuan Sun7College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, China; Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta (Binzhou University), Binzhou, 256600, ChinaCollege of Chemical Engineering and Environment, China University of Petroleum, Changping, Beijing, 102249, ChinaChina Unicom System Integration Co., Ltd, No.131, Xidan North Road, Beijing, 100085, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, China; Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta (Binzhou University), Binzhou, 256600, China; Corresponding author. College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, ChinaCollege of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, ChinaShandong Key Laboratory of Eco-Environmental Science for Yellow River Delta (Binzhou University), Binzhou, 256600, ChinaIn order to effectively improve the degradation rate of diesel, a systematic analysis of the degradation mechanism used by immobilized bacteria is necessary. In the present study, diesel degradation mechanisms were assessed by analyzing permeability, biodegradation, adsorption kinetics, and molecular simulation. We found that bacteria immobilized on cinnamon shells and peanut shells degraded relatively high amounts of diesel (69.94% and 64.41%, respectively). The primary degradation pathways used by immobilized bacteria included surface adsorption, internal uptake, and biodegradation. Surface adsorption was dominant in the early stage of degradation, whereas biodegradation was dominant in later stages. The diesel adsorption rate of the immobilized bacteria was in agreement with the pseudo second-order kinetic model. The immobilized bacteria and diesel interacted through hydrogen bonds.http://www.sciencedirect.com/science/article/pii/S266649842030020XImmobilized bacteriaBiodegradationBioremediationKineticsMolecular simulation |
| spellingShingle | Xinge Fu Huajun Wang Yu Bai Jianliang Xue Yu Gao Shugang Hu Tongtong Wu Jingkuan Sun Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation Environmental Science and Ecotechnology Immobilized bacteria Biodegradation Bioremediation Kinetics Molecular simulation |
| title | Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation |
| title_full | Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation |
| title_fullStr | Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation |
| title_full_unstemmed | Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation |
| title_short | Systematic degradation mechanism and pathways analysis of the immobilized bacteria: Permeability and biodegradation, kinetic and molecular simulation |
| title_sort | systematic degradation mechanism and pathways analysis of the immobilized bacteria permeability and biodegradation kinetic and molecular simulation |
| topic | Immobilized bacteria Biodegradation Bioremediation Kinetics Molecular simulation |
| url | http://www.sciencedirect.com/science/article/pii/S266649842030020X |
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