Biological hydrogen production from olive mill wastewater with two-stage processes

2006-09-01
Eroglu, Ela
Eroglu, Inci
Gündüz, Ufuk
Turker, Lemi
Yucel, Meral
In the present work two novel two-stage hydrogen production processes from olive mill wastewater (OMW) have been introduced. The first two-stage process involved dark-fermentation followed by a photofermentation process. Dark-fermentation by activated sludge cultures and photofermentation by Rhodobacter sphaeroides O.U.001 were both performed in 55 ml glass vessels, under anaerobic conditions. In some cases of dark-fermentation, activated sludge was initially acclimatized to the OMW to provide the adaptation of microorganisms to the extreme conditions of OMW. The highest hydrogen production potential obtained was 291H(2)/l(OMW) after photofermentation with 50% (v/v) effluent of dark fermentation with activated sludge. Photofermentation with 50% (v/v) effluent of dark fermentation with acclimated activated sludge had the highest hydrogen production rate (0.00811(-1) h(-1)).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

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Citation Formats
E. Eroglu, I. Eroglu, U. Gündüz, L. Turker, and M. Yucel, “Biological hydrogen production from olive mill wastewater with two-stage processes,” INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, pp. 1527–1535, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30531.