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A Review of the Enhancement of Bio-Hydrogen Generation by Chemicals Addition

Department of Chemical and Environmental Engineering, University of Nottingham Ningbo, Ningbo 315100, China
School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia
State key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
The Commonwealth Scientific and Industrial Research Organization (CSIRO), Energy Business Unit, Canberra, WA 6151, Australia
Authors to whom correspondence should be addressed.
Catalysts 2019, 9(4), 353;
Received: 10 March 2019 / Revised: 30 March 2019 / Accepted: 7 April 2019 / Published: 11 April 2019
PDF [1843 KB, uploaded 26 April 2019]
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Bio-hydrogen production (BHP) produced from renewable bio-resources is an attractive route for green energy production, due to its compelling advantages of relative high efficiency, cost-effectiveness, and lower ecological impact. This study reviewed different BHP pathways, and the most important enzymes involved in these pathways, to identify technological gaps and effective approaches for process intensification in industrial applications. Among the various approaches reviewed in this study, a particular focus was set on the latest methods of chemicals/metal addition for improving hydrogen generation during dark fermentation (DF) processes; the up-to-date findings of different chemicals/metal addition methods have been quantitatively evaluated and thoroughly compared in this paper. A new efficiency evaluation criterion is also proposed, allowing different BHP processes to be compared with greater simplicity and validity. View Full-Text
Keywords: hydrogenase; bio-hydrogen; chemicals addition; review hydrogenase; bio-hydrogen; chemicals addition; review

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Sun, Y.; He, J.; Yang, G.; Sun, G.; Sage, V. A Review of the Enhancement of Bio-Hydrogen Generation by Chemicals Addition. Catalysts 2019, 9, 353.

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