Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes
This work investigated the feasibility of enhancing biohydrogen yield from agricultural wheat straw by introducing an electrohydrogenesis process into dark fermentation (DF) and using heat-pretreated activated sludge as inoculum as a strategy to inhibit the methanogens’ growth. The achieved maximum...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-04-01
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| Series: | Energy Conversion and Management: X |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174524000199 |
| _version_ | 1797323763892617216 |
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| author | Fabrice Ndayisenga Zhisheng Yu Bobo Wang Gang Wu Hongxun Zhang |
| author_facet | Fabrice Ndayisenga Zhisheng Yu Bobo Wang Gang Wu Hongxun Zhang |
| author_sort | Fabrice Ndayisenga |
| collection | DOAJ |
| description | This work investigated the feasibility of enhancing biohydrogen yield from agricultural wheat straw by introducing an electrohydrogenesis process into dark fermentation (DF) and using heat-pretreated activated sludge as inoculum as a strategy to inhibit the methanogens’ growth. The achieved maximum biohydrogen yield was 5.416 mmol H2/g-straw with an energy recovery efficiency of 94.4 %. It reported a maximum coulombic efficiency of 74 % and chemical oxygen demand (COD) removal efficiency of 81.32 % whereas the maximum NH3-H removal efficiency was 42.25 %. The main volatile fatty acids (VFA) detected at the end of DF were acetic acid, propionic acid, and butyric acid, respectively, reduced by 84.07 %, 77.38 %, and 75.52 % at the end of the second phase of electrohydrogenesis. Moreover, this novel strategy promoted the conversion of lignocellulosic components compared to the non-pretreated activated sludge-catalyzed fermentative bioreactors, where the cellulose, lignin, and hemicellulose removal rates rose by 58.4 %, 55.5 %, and 79.5 %, respectively. These results revealed that coupling the electrohydrogenesis with dark fermentation in the process biocatalyzed by a thermally-pretreated activated sludge remarkably inhibited methanogen growth and improved the biohydrogen yield from agricultural straw residues. Hence, this investigation provides a novel technology utilizing agricultural straw biomass as a bioresource other than waste. |
| first_indexed | 2024-03-08T05:33:52Z |
| format | Article |
| id | doaj.art-4f54ced1b2f244a7b7285ccee86c5bcc |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-03-08T05:33:52Z |
| publishDate | 2024-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-4f54ced1b2f244a7b7285ccee86c5bcc2024-02-06T04:12:47ZengElsevierEnergy Conversion and Management: X2590-17452024-04-0122100541Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastesFabrice Ndayisenga0Zhisheng Yu1Bobo Wang2Gang Wu3Hongxun Zhang4College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing 100085, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing 100085, China; Corresponding author at: College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing 100049, PR China.College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing 100085, ChinaState Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, ChinaCollege of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing 100049, China; RCEES-IMCAS-UCAS Joint-Lab of Microbial Technology for Environmental Science, Beijing 100085, ChinaThis work investigated the feasibility of enhancing biohydrogen yield from agricultural wheat straw by introducing an electrohydrogenesis process into dark fermentation (DF) and using heat-pretreated activated sludge as inoculum as a strategy to inhibit the methanogens’ growth. The achieved maximum biohydrogen yield was 5.416 mmol H2/g-straw with an energy recovery efficiency of 94.4 %. It reported a maximum coulombic efficiency of 74 % and chemical oxygen demand (COD) removal efficiency of 81.32 % whereas the maximum NH3-H removal efficiency was 42.25 %. The main volatile fatty acids (VFA) detected at the end of DF were acetic acid, propionic acid, and butyric acid, respectively, reduced by 84.07 %, 77.38 %, and 75.52 % at the end of the second phase of electrohydrogenesis. Moreover, this novel strategy promoted the conversion of lignocellulosic components compared to the non-pretreated activated sludge-catalyzed fermentative bioreactors, where the cellulose, lignin, and hemicellulose removal rates rose by 58.4 %, 55.5 %, and 79.5 %, respectively. These results revealed that coupling the electrohydrogenesis with dark fermentation in the process biocatalyzed by a thermally-pretreated activated sludge remarkably inhibited methanogen growth and improved the biohydrogen yield from agricultural straw residues. Hence, this investigation provides a novel technology utilizing agricultural straw biomass as a bioresource other than waste.http://www.sciencedirect.com/science/article/pii/S2590174524000199Biohydrogen energyDark fermentationAgricultural straw wastesMicrobial electrolysis cellsThermally-pretreated inoculum |
| spellingShingle | Fabrice Ndayisenga Zhisheng Yu Bobo Wang Gang Wu Hongxun Zhang Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes Energy Conversion and Management: X Biohydrogen energy Dark fermentation Agricultural straw wastes Microbial electrolysis cells Thermally-pretreated inoculum |
| title | Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| title_full | Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| title_fullStr | Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| title_full_unstemmed | Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| title_short | Synergistic application of thermally-pretreated-biocatalyst and dark-fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| title_sort | synergistic application of thermally pretreated biocatalyst and dark fermentative process coupled with bioelectrohydrogenesis promotes biohydrogen production from agricultural straw wastes |
| topic | Biohydrogen energy Dark fermentation Agricultural straw wastes Microbial electrolysis cells Thermally-pretreated inoculum |
| url | http://www.sciencedirect.com/science/article/pii/S2590174524000199 |
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