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Use of the UASB reactor for the anaerobic treatment of stillage from sugar cane molasses

Use of the UASB reactor for the anaerobic treatment of stillage from sugar cane molasses

Biotechnology and Bioengineering 27(12): 1710-1716

The feasibility of applying the UASB concept for the anaerobic treatment of stillage of distilleries in the sugar producing area of Argentina was subject to study. Results obtained in a 100-L UASB reactor treating stillages with COD values between 35 and 100 g COD/L are presented. Loading rates of up to 24 g COD/L/day were applied with an average COD removal of 75% and a biogas production of more than 9 L/L/day, with an average methane content of 58%. The settling velocity distribution of sludge particles would indicate a good formation of biomass pellets. System interruptions of months without feed and at ambient temperature (20-24 degrees C) were well tolerated.

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Accession: 056804946

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PMID: 18553633

DOI: 10.1002/bit.260271212

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