Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor
A three-dimensional model integrating computational fluid dynamics (CFD) and biokinetics was established to model an expanded granular sludge bed (EGSB) reactor in this study. The EGSB reactor treating synthesized municipal wastewater was operated at ambient temperature. The model provided satisfact...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2015/635281 |
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| author | Jixiang Yang Yanqing Yang Xin Ji Youpeng Chen Jinsong Guo Fang Fang |
| author_facet | Jixiang Yang Yanqing Yang Xin Ji Youpeng Chen Jinsong Guo Fang Fang |
| author_sort | Jixiang Yang |
| collection | DOAJ |
| description | A three-dimensional model integrating computational fluid dynamics (CFD) and biokinetics was established to model an expanded granular sludge bed (EGSB) reactor in this study. The EGSB reactor treating synthesized municipal wastewater was operated at ambient temperature. The model provided satisfactory modeling results regarding hydrodynamics and biokinetics. The model shows that influent distribution was evenly distributed. In addition, butyrate and propionate degradation rates linearly decreased along the flow direction in the reactor. However, acetate degradation rate increased first and decreased later. VFA degradation rate distributions were different at each reactor cross section. VFA degradation rates near reactor wall were lower than VFA degradation rates at reactor axis. Moreover, a pulse high influent COD concentration had a tiny impact on effluent quality, which indicates that the reactor was stable while treating synthesized wastewater at adopted conditions. |
| format | Article |
| id | doaj-art-397ec6732a9e4aeaaf1de6986792a200 |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-397ec6732a9e4aeaaf1de6986792a2002025-02-03T01:30:18ZengWileyJournal of Chemistry2090-90632090-90712015-01-01201510.1155/2015/635281635281Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB ReactorJixiang Yang0Yanqing Yang1Xin Ji2Youpeng Chen3Jinsong Guo4Fang Fang5Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaKey Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaKey Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaKey Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaKey Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, ChinaSchool of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400030, ChinaA three-dimensional model integrating computational fluid dynamics (CFD) and biokinetics was established to model an expanded granular sludge bed (EGSB) reactor in this study. The EGSB reactor treating synthesized municipal wastewater was operated at ambient temperature. The model provided satisfactory modeling results regarding hydrodynamics and biokinetics. The model shows that influent distribution was evenly distributed. In addition, butyrate and propionate degradation rates linearly decreased along the flow direction in the reactor. However, acetate degradation rate increased first and decreased later. VFA degradation rate distributions were different at each reactor cross section. VFA degradation rates near reactor wall were lower than VFA degradation rates at reactor axis. Moreover, a pulse high influent COD concentration had a tiny impact on effluent quality, which indicates that the reactor was stable while treating synthesized wastewater at adopted conditions.http://dx.doi.org/10.1155/2015/635281 |
| spellingShingle | Jixiang Yang Yanqing Yang Xin Ji Youpeng Chen Jinsong Guo Fang Fang Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor Journal of Chemistry |
| title | Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor |
| title_full | Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor |
| title_fullStr | Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor |
| title_full_unstemmed | Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor |
| title_short | Three-Dimensional Modeling of Hydrodynamics and Biokinetics in EGSB Reactor |
| title_sort | three dimensional modeling of hydrodynamics and biokinetics in egsb reactor |
| url | http://dx.doi.org/10.1155/2015/635281 |
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