Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor
Anaerobic digestion of agro-industrial wastes is an environmentally friendly green biotechnology of significant interest in order to facilitate sustainable development of bioenergy production. Thus, it becomes important to invest in management processes for agro-industrial wastes, particularly low-c...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/207433 |
| Acceso en línea: | http://dx.doi.org/10.1016/j.jece.2021.105226 http://hdl.handle.net/11449/207433 |
| Access Level: | acceso abierto |
| Palabra clave: | Anaerobic digestion Biogas Methane Soybean molasses UASB reactor |
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Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactorAnaerobic digestionBiogasMethaneSoybean molassesUASB reactorAnaerobic digestion of agro-industrial wastes is an environmentally friendly green biotechnology of significant interest in order to facilitate sustainable development of bioenergy production. Thus, it becomes important to invest in management processes for agro-industrial wastes, particularly low-cost ones. In this paper, the main purposes were to investigate the performance of a high-rate reactor and biogas generation potential by anaerobic digestion of soybean molasses, which is a viscous liquid of brown color obtained as a byproduct from processing of the soy protein industry concentrate. A lab-scale up-flow anaerobic sludge blanket reactor (UASB reactor), with a total volume of 12 L, was operated at six different organic loading rates (OLR) ranging from 0.28 to 6.98 kgCOD m-3 d-1 (COD of 500-4000 mg L-1). The reactor was fed with soybean molasses for 134 days and maintained under mesophilic conditions. Different values were tested for the hydraulic retention time (HRT of 48, 24 and 12 h). After the fast startup period (52 days), the mean values of removal efficiencies (CODTotal) ranged from 70% to 83% in all experimental periods. In a UASB reactor, a higher organic loading rate of 6.98 kgCOD m-3 d-1 could be tolerated, but it resulted in a lower biomethane yield of 356.1 mLCH4 gCOD-1. In addition, for all the tested COD concentrations and HRT, high concentrations of methane in the biogas were obtained from 72.5% to 82.1%. Based on the experimental results, it can be verified that this high-rate anaerobic configuration can be used for the biomethane generation of soybean molasses and the produced effluent can be reutilized in the dilution of soybean molasses for reactor feed.São Paulo State University (UNESP) Institute of Chemistry Campus Araraquara Department of Engineering Physics and Mathematics, Rua Prof. Francisco Degni, 55Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives Institute of Chemistry CEMPEQC UNESPBioenergy Research Institute-IPBEN UNESP Institute of ChemistryCollege of Engineering Bauru Faculty of Engineering UNESP Sao Paulo State University Department of Civil and Environmental Engineering, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01São Paulo State University (UNESP) Institute of Chemistry Campus Araraquara Department of Engineering Physics and Mathematics, Rua Prof. Francisco Degni, 55Center for Monitoring and Research of the Quality of Fuels Biofuels Crude Oil and Derivatives Institute of Chemistry CEMPEQC UNESPBioenergy Research Institute-IPBEN UNESP Institute of ChemistryCollege of Engineering Bauru Faculty of Engineering UNESP Sao Paulo State University Department of Civil and Environmental Engineering, Av. Eng. Luiz Edmundo Carrijo Coube, 14-01Universidade Estadual Paulista (Unesp)2021-06-25T10:55:04Z2021-06-25T10:55:04Z2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jece.2021.105226Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021.2213-3437http://hdl.handle.net/11449/20743310.1016/j.jece.2021.1052262-s2.0-85102401972Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Environmental Chemical Engineeringinfo:eu-repo/semantics/openAccessRodrigues, Brenda Clara Gomes [UNESP]De Mello, Bruna Sampaio [UNESP]Gonsales Da Costa Araujo, Maria Lucia [UNESP]Ribeiro Da Silva, Gustavo Henrique [UNESP]Sarti, Arnaldo [UNESP]2025-08-29T05:02:11Zoai:repositorio.unesp.br:11449/207433Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462025-08-29T05:02:11Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
| dc.title.none.fl_str_mv |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| title |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| spellingShingle |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor Rodrigues, Brenda Clara Gomes [UNESP] Anaerobic digestion Biogas Methane Soybean molasses UASB reactor |
| title_short |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| title_full |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| title_fullStr |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| title_full_unstemmed |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| title_sort |
Soybean molasses as feedstock for sustainable generation of biomethane using high-rate anaerobic reactor |
| dc.creator.none.fl_str_mv |
Rodrigues, Brenda Clara Gomes [UNESP] De Mello, Bruna Sampaio [UNESP] Gonsales Da Costa Araujo, Maria Lucia [UNESP] Ribeiro Da Silva, Gustavo Henrique [UNESP] Sarti, Arnaldo [UNESP] |
| author |
Rodrigues, Brenda Clara Gomes [UNESP] |
| author_facet |
Rodrigues, Brenda Clara Gomes [UNESP] De Mello, Bruna Sampaio [UNESP] Gonsales Da Costa Araujo, Maria Lucia [UNESP] Ribeiro Da Silva, Gustavo Henrique [UNESP] Sarti, Arnaldo [UNESP] |
| author_role |
author |
| author2 |
De Mello, Bruna Sampaio [UNESP] Gonsales Da Costa Araujo, Maria Lucia [UNESP] Ribeiro Da Silva, Gustavo Henrique [UNESP] Sarti, Arnaldo [UNESP] |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
| dc.subject.por.fl_str_mv |
Anaerobic digestion Biogas Methane Soybean molasses UASB reactor |
| topic |
Anaerobic digestion Biogas Methane Soybean molasses UASB reactor |
| description |
Anaerobic digestion of agro-industrial wastes is an environmentally friendly green biotechnology of significant interest in order to facilitate sustainable development of bioenergy production. Thus, it becomes important to invest in management processes for agro-industrial wastes, particularly low-cost ones. In this paper, the main purposes were to investigate the performance of a high-rate reactor and biogas generation potential by anaerobic digestion of soybean molasses, which is a viscous liquid of brown color obtained as a byproduct from processing of the soy protein industry concentrate. A lab-scale up-flow anaerobic sludge blanket reactor (UASB reactor), with a total volume of 12 L, was operated at six different organic loading rates (OLR) ranging from 0.28 to 6.98 kgCOD m-3 d-1 (COD of 500-4000 mg L-1). The reactor was fed with soybean molasses for 134 days and maintained under mesophilic conditions. Different values were tested for the hydraulic retention time (HRT of 48, 24 and 12 h). After the fast startup period (52 days), the mean values of removal efficiencies (CODTotal) ranged from 70% to 83% in all experimental periods. In a UASB reactor, a higher organic loading rate of 6.98 kgCOD m-3 d-1 could be tolerated, but it resulted in a lower biomethane yield of 356.1 mLCH4 gCOD-1. In addition, for all the tested COD concentrations and HRT, high concentrations of methane in the biogas were obtained from 72.5% to 82.1%. Based on the experimental results, it can be verified that this high-rate anaerobic configuration can be used for the biomethane generation of soybean molasses and the produced effluent can be reutilized in the dilution of soybean molasses for reactor feed. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021-06-25T10:55:04Z 2021-06-25T10:55:04Z 2021-08-01 |
| dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jece.2021.105226 Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021. 2213-3437 http://hdl.handle.net/11449/207433 10.1016/j.jece.2021.105226 2-s2.0-85102401972 |
| url |
http://dx.doi.org/10.1016/j.jece.2021.105226 http://hdl.handle.net/11449/207433 |
| identifier_str_mv |
Journal of Environmental Chemical Engineering, v. 9, n. 4, 2021. 2213-3437 10.1016/j.jece.2021.105226 2-s2.0-85102401972 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Journal of Environmental Chemical Engineering |
| dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
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Universidade Estadual Paulista (UNESP) |
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UNESP |
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UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
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repositoriounesp@unesp.br |
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1853672466935709696 |
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15,300719 |