H 2 production by photofermentation in an innovative plate-type photobioreactor with meandering channels.

Autor: Turon V; Laboratoire Echangeurs et Réacteurs, Université Grenoble Alpes, CEA, LITEN, DTBH, Laboratoire Echangeurs et Réacteurs, Grenoble, France., Ollivier S; Laboratoire Echangeurs et Réacteurs, Université Grenoble Alpes, CEA, LITEN, DTBH, Laboratoire Echangeurs et Réacteurs, Grenoble, France., Cwicklinski G; Laboratoire Echangeurs et Réacteurs, Université Grenoble Alpes, CEA, LITEN, DTBH, Laboratoire Echangeurs et Réacteurs, Grenoble, France., Willison JC; Université Grenoble Alpes, CNRS, CEA, CBM, DIESE, IRIG, DRF, Grenoble, France., Anxionnaz-Minvielle Z; Laboratoire Echangeurs et Réacteurs, Université Grenoble Alpes, CEA, LITEN, DTBH, Laboratoire Echangeurs et Réacteurs, Grenoble, France.
Jazyk: angličtina
Zdroj: Biotechnology and bioengineering [Biotechnol Bioeng] 2021 Mar; Vol. 118 (3), pp. 1342-1354. Date of Electronic Publication: 2021 Jan 11.
DOI: 10.1002/bit.27656
Abstrakt: Hydrogen production by Rhodobacter capsulatus is an anaerobic, photobiological process requiring specific mixing conditions. In this study, an innovative design of a photobioreactor is proposed. The design is based on a plate-type photobioreactor with an interconnected meandering channel to allow culture mixing and H 2 degassing. The culture flow was characterized as a quasi-plug-flow with radial mixing caused by a turbulent-like regime achieved at a low Reynolds number. The dissipated volumetric power was decreased 10-fold while maintaining PBR performances (production and yields) when compared with a magnetically stirred tank reactor. To increase hydrogen production flow rate, several bacterial concentrations were tested by increasing the glutamate concentration using fed-batch cultures. The maximum hydrogen production flow rate (157.7 ± 9.3 ml H 2 /L/h) achieved is one of the highest values so far reported for H 2 production by R. capsulatus. These first results are encouraging for future scale-up of the plate-type reactor.
(© 2020 Wiley Periodicals LLC.)
Databáze: MEDLINE
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