Role of residue cornstalk derived biochar for the enhanced bio-hydrogen production via simultaneous saccharification and fermentation of cornstalk
| Autor: | Lei Zhao, Zi-Han Wang, Jun Nan, Shan-Shan Yang, Nanqi Ren, Kai-Kai Wu, Hong-Yu Ren, Guang-Li Cao, Chuan Chen |
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| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Crop residue Environmental Engineering Renewable Energy Sustainability and the Environment Chemistry Bioengineering General Medicine 010501 environmental sciences Pulp and paper industry 01 natural sciences Hydrolysate Hydrolysis Bioenergy Biofuel Charcoal 010608 biotechnology Fermentation Biochar Waste Management and Disposal Hydrogen 0105 earth and related environmental sciences Hydrogen production |
| Zdroj: | Bioresource Technology. 330:125006 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2021.125006 |
| Popis: | Biochar derived from residue cornstalk left after anaerobic bio-hydrogen production (RCA-biochar) was confirmed to enhance bio-hydrogen production from cornstalk hydrolysate. However, the role of RCA-biochar in simultaneous saccharification and fermentation (SSF) during bio-hydrogen production from cornstalk has not yet been revealed. This study therefore aims to fill this knowledge gap. It was observed that with the increase in RCA-biochar concentration from 0 g/L to 10.0 g/L, the maximal cumulative SSF bio-hydrogen yield varied from 24.3 ± 1.1 mL/g-substrate to 154.3 ± 3.6 mL/g substrate under varying pH values – 5.5, 6.0, 6.5, 7.0. The increasing bio-hydrogen production was observed to correlate with both RCA-biochar level and initial pH. Batch tests confirmed that the initial pH had an obvious effect an saccharification, while RCA-biochar affected anaerobic fermentation a lot. The findings revealed the role of previously unrecognized RCA-biochar in SSF bio-hydrogen production from cornstalk, which can provide an alternative approach for lignocellulosic bio-hydrogen production. |
| Databáze: | OpenAIRE |
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