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Publication
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| Research Title |
Biohydrogen and methane production from sugarcane bagasse, microalgal biomass, and cow dung using vermihumus as the inoculum |
| Date of Distribution |
2 April 2021 |
| Conference |
| Title of the Conference |
Thai Society for Biotechnology International Conference Online “Green Energy & Zero Waste Society” |
| Organiser |
Thai Society for Biotechnology |
| Conference Place |
Online Conference, Bangkok, Thailand |
| Province/State |
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| Conference Date |
2 April 2021 |
| To |
2 April 2021 |
| Proceeding Paper |
| Volume |
00 |
| Issue |
00 |
| Page |
152-165 |
| Editors/edition/publisher |
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| Abstract |
Biohydrogen and methane are promising renewable energy that can be produced fermentatively from various substrates. To develop a cost-effective and simple process for biohydrogen and methane productions, this study investigated the use of non-pretreated sugarcane bagasse (SCB), biomass of microalga Chlorella sp., and cow dung (CD), as the mixed feedstock, using vermihumus as the inoculum. The proportion of each feedstock was optimized using D-optimal mixture design, and one-stage anaerobic digestion (AD), and two-stage process consisting of dark fermentation (DF) followed by AD, were employed to produce methane, and biohydrogen and methane, respectively. Using one-stage AD, a methane yield of 230 mL-CH4/g-volatile-solids (VS), equivalent to the energy yield of 8.2 kJ/g-VS, was attained under the optimum conditions of 29.49 g-VS/L of SCB, 23.88 g-VS/L of Chlorella sp. biomass, and 6.63 g-VS/L of CD. DF conducted as the first stage of the two-stage process gave 24.41 mL-H2/g-VS, under the optimum conditions of 16.33 g-VS/L of SCB, 41.67 g-VS/L of Chlorella sp. biomass, and 2.00 g-VS/L of CD. Further use of the hydrogenic effluent in AD yielded 140.76 mL-CH4/g-VS, leading to the total energy yield of 5.3 kJ/g-VS. Results revealed that the one-stage AD process was effective in recovering energy (in the form of methane) from the feedstock despite no biomass pretreatment was applied, and that vermihumus was applicable as the fermentation inoculum. Results further revealed that the two-stage process was a potential process for the production biohythane (a blend of biohydrogen and methane) that has better fuel properties compared with methane. |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
นานาชาติ |
| Type of Proceeding |
Full paper |
| Type of Presentation |
Oral |
| Part of thesis |
true |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
ไทย