Hydrogen Production By R. Capsulatus On Dark Fermenter Effluent Of Potato Steam Peel Hydrolysate

Afsar, N.
Ozgur, E.
Gurgan, M.
de Vrije, T.
Gündüz, Ufuk
Eroglu, I.
Biohydrogen is a promising energy source since it is clean and renewable. The HYVOLUTION project (EU 6th Framework Programme) is aimed to develop an integrated process in which biomass is utilized for the biohydrogen production in two steps. In the first step biomass is fermented to acetate, lactate, CO2 and hydrogen by an extreme thermophile (Caldicellulosiruptor saccharolyticus). In the second step, acetate and lactate is converted to hydrogen and CO2 by photofermentation with purple nonsulfur bacteria. The present work is based on a case study of potato steam peels hydrolysate. The photofermentability of Rhodobacter capsulatus was investigated with different adjustments on dark fermenter effluent of potato steam peel hydrolysate. The highest yield (31 mgH(2)/gsubstrate.) and productivity (1.13 gH(2)/m(3).h) were obtained after buffer, molybdenum and iron addition. This study showed that PSP hydrolysate as biomass is suitable for the integration of dark fermentation and photofermentation for efficient and sustainable hydrogen production in photobioreactors by phototrophic bacteria.


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Citation Formats
N. Afsar et al., “Hydrogen Production By R. Capsulatus On Dark Fermenter Effluent Of Potato Steam Peel Hydrolysate,” 2009, vol. 18, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30824.