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Publication
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| Title of Article |
Improvement in energy recovery from Chlorella sp. biomass by integrated dark-photo biohydrogen production and dark fermentation-anaerobic digestion processes |
| Date of Acceptance |
6 March 2019 |
| Journal |
| Title of Journal |
International Journal of Hydrogen Energy |
| Standard |
ISI |
| Institute of Journal |
Elsevier Ltd. |
| ISBN/ISSN |
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| Volume |
2020 |
| Issue |
44 |
| Month |
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| Year of Publication |
2020 |
| Page |
23899-23911 |
| Abstract |
Chlorella sp. biomass was used as the sole substrate for the production of hydrogen and methane through integrated dark fermentation (DF) and photo-fermentation (PF), and DF and anaerobic digestion (AD) processes. Prior to use in fermentations, the biomass was pretreated by acid-hydrothermal method, which yielded a maximum reducing sugar yield of 162.9 ± 4.2 mg g-biomass−1. The use of the microalgal hydrolysate to produce hydrogen by DF gave a hydrogen yield (HY) of 47.2 ± 1.1 mL g-volatile-solids−1 (VS). The subsequent use of the hydrogenic effluent in PF gave a HY of 125.0 ± 1.5 mL g-VS−1, while AD of the hydrogenic effluent gave a methane yield of 152.8 ± 1.3 mL g-VS−1. The total energy yield attained by the use of DF alone, the integrated DF-PF, and DF-AD processes were 0.51, 1.86 and 5.98 kJ g-VS−1, respectively. These results indicate that the integrated DF-AD process was effective in recovering energy from Chlorella sp. biomass. However, an energy balance analysis indicated that the process was not energetically feasible due to the high energy demand for the acid-hydrothermal pretreatment. |
| Keyword |
Energy recovery, Renewable energy, Third-generation biomass, Hydrogen, Methane, Two-stage fermentation |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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