Effect of hydrodynamic parameters on hydrogen production by Anabaena sp. in an internal‑loop airlift photobioreactor

Zarei, Zahra and Malekshahi, Peyman and Trzcinski, Antoine P. ORCID: https://orcid.org/0000-0002-2880-708X and Morowvat, Mohammad Hossein (2022) Effect of hydrodynamic parameters on hydrogen production by Anabaena sp. in an internal‑loop airlift photobioreactor. Brazilian Journal of Chemical Engineering. pp. 1-10. ISSN 0104-6632


Abstract

Global warming and air pollution caused by fossil fuel emissions have triggered the search for a clean, sustainable, and eco-friendly energy source such as H2, which can be produced by cyanobacteria and microalgae. In this study, Anabaena sp. was used in a photobioreactor to achieve biohydrogen production. To this end, hydrodynamic parameters such as gas holdup, liquid circulation velocity, oxygen mass transfer coefficient, and gas velocity were investigated. Results showed that the gas holdup, liquid circulation velocity, and oxygen mass transfer increased by increasing the inlet gas velocity without causing detrimental shear stress to cyanobacteria. A biomass concentration of 1.2 g L−1 and a total H2 production of 371 mL were recorded after 7 days using an inlet gas velocity of 0.524 cm s−1 and a light intensity of 140 µmol photons m−2 s−1. Using a superficial gas velocity of 0.524 cm s−1 resulted in the optimum gas holdup, mass transfer, and light availability to Anabaena sp. The growth of cyanobacteria in an internal-loop airlift photobioreactor was found to be a cost-effective and environmentally friendly technology for hydrogen production.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Agriculture and Environmental Science (1 Jan 2022 -)
Faculty/School / Institute/Centre: Current – Faculty of Health, Engineering and Sciences - School of Agriculture and Environmental Science (1 Jan 2022 -)
Date Deposited: 05 May 2022 03:22
Last Modified: 05 May 2022 03:22
Uncontrolled Keywords: Cyanobacteria; Hydrogen; Photobioreactor; Superficial gas velocity
Fields of Research (2020): 40 ENGINEERING > 4011 Environmental engineering > 401102 Environmentally sustainable engineering
41 ENVIRONMENTAL SCIENCES > 4104 Environmental management > 410404 Environmental management
40 ENGINEERING > 4004 Chemical engineering > 400401 Carbon capture engineering (excl. sequestration)
31 BIOLOGICAL SCIENCES > 3106 Industrial biotechnology > 310602 Bioprocessing, bioproduction and bioproducts
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering
17 ENERGY > 1708 Renewable energy > 170801 Biofuel energy
Identification Number or DOI: https://doi.org/10.1007/s43153-022-00245-3
URI: http://eprints.usq.edu.au/id/eprint/48122

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