Biohydrogen production by Rhodobacter capsulatus Hup(-) mutant in pilot solar tubular photobioreactor

Date

2012-11-01

Author

Boran, Efe
Ozgur, Ebru
Yucel, Meral
Gündüz, Ufuk
EROĞLU, İNCİ

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In this study, a pilot solar tubular photobioreactor was successfully implemented for fed batch operation in outdoor conditions for photofermentative hydrogen production with Rhodobacter capsulatus (Hup(-)) mutant. The bacteria had a rapid growth with a specific growth rate of 0.052 h(-1) in the batch exponential phase and cell dry weight remained in the range of 1-1.5 g/L throughout the fed batch operation. The feeding strategy was to keep acetic acid concentration in the photobioreactor at the range of 20 mM by adjusting feed acetate concentration. The maximum molar productivity obtained was 0.40 mol H-2/(m(3) h) and the yield obtained was 0.35 mol H-2 per mole of acetic acid fed. Evolved gas contained 95-99% hydrogen and the rest was carbon dioxide by volume. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Subject Keywords

Photofermentation, Hup(-) mutant, Rhodobacter capsulatus, Tubular photobioreactor, Biohydrogen, Pilot

URI

https://hdl.handle.net/11511/31964

Journal

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

DOI

https://doi.org/10.1016/j.ijhydene.2012.02.171

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

E. Boran, E. Ozgur, M. Yucel, U. Gündüz, and İ. EROĞLU, “Biohydrogen production by Rhodobacter capsulatus Hup(-) mutant in pilot solar tubular photobioreactor,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 16437–16445, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31964.