Biomethanation of cheese whey using anaerobic upflow fixed film reactor |
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Affiliation: | 1. University of Carthage, Water Research and Technologies Centre (CERTE), Wastewater Treatment Laboratory, Tunisia;2. INRA, UR50, Laboratoire de Biotechnologie de l’Environnement, Avenue des Etangs, Narbonne F-11100, France |
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Abstract: | Performance of anaerobic upflow fixed film reactors for biomethanation of high-strength cheese whey using different support material such as charcoal, gravel, brick pieces, PVC pieces and pumice stones at 37°C has been studied. Among them the charcoal fixed film reactor showed the best performance when operated at 2 d hydraulic retention times (HRT), achieving maximum COD removal of 81% (COD influent=70 g/l) and improved total gas production (6.7 l/d/l digester) with high methane content (72%). |
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