Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7720827 | International Journal of Hydrogen Energy | 2014 | 9 Pages |
Abstract
The fermentation of glucose, cheese whey and the mixture of glucose and cheese whey were evaluated in this study from two inocula sources (sludge from a UASB reactor for swine wastewater treatment and poultry slaughterhouse) for hydrogen production in continuous anaerobic fluidized bed reactors (AFBR). For all fermentations, a hydraulic retention time (HRT) of 6 h and a substrate concentration of 5 g COD Lâ1 were used. In glucose fermentation, the maximum hydrogen yield (HY) was 1.37 mmol H2 gâ1 COD. The co-fermentation of the cheese whey and glucose mixture was favorable for the concomitant production of hydrogen and ethanol, with yields of up to 1.7 mmol H2 gâ1 COD and 3.45 mol EtOH gâ1 COD in AFBR2. The utilization of cheese whey as a sole substrate resulted in an HY of 1.9 mmol H2 gâ1 COD. Throughout the study, ethanol fermentation was evident.
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Authors
Paula Rúbia Ferreira Rosa, Samantha Christine Santos, Edson Luiz Silva,