期刊
BIORESOURCE TECHNOLOGY
卷 341, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.125764
关键词
Clostridium pasteurianum; Dark fermentation; Static magnetic field; Biohydrogen production
资金
- Open Project of State Key Lab-oratory of Urban Water Resource and Environment, Harbin Institute of Technology [HC201713]
- Shandong Provincial Natural Sci-ence Foundation, China [ZR2019QB018]
- Young Scientists Fund of the National Natural Science Foundation of China [41401285]
- Young Talents Invitation Program of Shandong Pro-vincial Colleges and Universities [20190601]
The study found that a magnetic field intensity of 3.2 mT effectively enhanced hydrogen production, leading to significantly higher hydrogen yield and production rate. Compared to the control group, the maximum biomass, carbon conversion efficiency, and energy conversion efficiency were also increased to varying degrees.
Microbial fermentation plays important roles in hydrogen production. Various methods to promote hydrogen production are being developed. Here, different magnetic field intensities (2.7 mT, 3.2 mT and 9.1 mT) were applied to the glucose fermentation system of Clostridium pasteurianum to evaluate the feasibility and effect of statistic magnetic field on hydrogen production. The results showed that the magnetic field intensity of 3.2 mT effectively enhanced the hydrogen production. The total glucose consumption reached 0.64 +/- 0.010 mmol, the maximum hydrogen yield reached 2.34 +/- 0.020 mol H2/mol glucose, and the maximum hydrogen production rate reached 0.065 +/- 0.002 mmol/h. Compared with the control, the maximum biomass, carbon conversion efficiency and energy conversion efficiency were elevated by 366%, 114%, and 26.8%, respectively. Our results provide a new way for promotion of hydrogen production, better understanding of the interaction mechanism between magnetic field and microorganisms and for optimizing the hydrogen production.
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