Summary
A continuous two step anaerobic digestion of sugar beet pulp as carbon and energy source was carried out. The loading rates in the acidification reactor were varied from 5 g·1−1·d−1 to 15 g·1−1·d−1 while the hydraulic retention time was in the range of 10 hours to 30 hours; the corresponding values for the methane reactor varied from 2 days to nearly 6 days.
With this reactor configuration a biogas yield of more than 85% of the theoretical value for total carbon conversion was achieved resulting in a corresponding COD reduction.
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References
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Stoppok, E., Buchholz, K. Continuous anaerobic conversion of sugar beet pulp to biogas. Biotechnol Lett 7, 119–124 (1985). https://doi.org/10.1007/BF01026682
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DOI: https://doi.org/10.1007/BF01026682