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|Title:||On the independence of hydrogen production from methanogenic suppressor in olive mill wastewater|
|Author(s):||Gonçalves, Marta R.|
Costa, J. C.
Pereira, M. A.
Abreu, A. A.
Alves, M. M.
Olive mill wastewater
Olive oil mill effluent
|Journal:||International Journal of Hydrogen Energy|
|Citation:||Gonçalves, M. R.; Costa, J. C.; Pereira, M. A.; Abreu, A. A.; Alves, M. M., On the independence of hydrogen production from methanogenic suppressor in olive mill wastewater. International Journal of Hydrogen Energy, 39(12), 6402-6406, 2014|
|Abstract(s):||Anaerobic degradation of olive mill wastewater (OMW) at concentrations ranging from 2 to 100 g/L of chemical oxygen demand (COD) was assessed in batch assays. Methane was the main final product obtained for the lower concentrations tested. For 25 g COD/L, H2 was temporarily produced, albeit H2 depletion occurred, likely due to homoacetogenesis, since acetate was formed concomitantly. Hydrogen was produced and accumulated permanently in the assays containing 50 g COD/L of OMW. Methanogenesis and homoacetogenesis were naturally inhibited, suggesting that hydrogen recovery from OMW can be performed without the addition of methanogenic suppressors such as 2-bromoethanosulfonate. This fact opens new perspectives for the utilization of high OMW concentrations in a two-stage valorisation process combining biohydrogen and biomethane production.|
|Appears in Collections:||CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series|