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Anaerobic digestion of high strength distillery wastewater cane molasses stillage in a fixed film reactor

Anaerobic digestion of high strength distillery wastewater cane molasses stillage in a fixed film reactor

Biological Wastes 23(4): 251-268

Methane fermentation of cane molassess stillage was studied sung a 10 m3 downflow fixed-film reactor packed with a plastic medium. The performance was particularly good for this type of substrate: load rate, 14.2-20.4 kg COD m-3 day-1; HRT, 3.3-2.5 days; biogas productivity, 6.5-8.4 m3 m-3 day-1. Fermentation removed 85% to 97% for BOD and 60% to 73% for COD. To resolve the problems of seeding caused by the absence of conventional inocula (digesters), the use of methanogenic ecosystems from natural habitats was considered and applied. These experimental data have led to design and start-up of an industrial fixed biomass plant (1700 m3) for the anaerobic treatment of can molasses stillage (rum distillery).

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Accession: 004735950

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DOI: 10.1016/0269-7483(88)90014-6

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