Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8054716 | Biosystems Engineering | 2018 | 9 Pages |
Abstract
This study has been conducted to optimise the dry-thermophilic anaerobic co-digestion of two different types of real waste (municipal solid waste and biodiesel waste) in a semi-continuous feeding regime, under high organic loading rates (OLRs) or low hydraulic retention times (HRTs). For this purpose, different high OLRs (from 10 to 34 g [VS] lâ1 dâ1) or low HRTs (from 10 to 4.4 d) were investigated in a continuously stirred tank reactor. Optimal conditions (257 ml [CH4] gâ1 VS; 6.03 ± 0.43 l [CH4] lâ1 dâ1; 16.3 ± 2.3 Ã 10â12 l [CH4] cellâ1 dâ1) were obtained at 4.4 d HRT (OLR = 23 g [VS] lâ1 dâ1), in which the average values of the ratios of Eubacteria:Archaea and hydrolytic-acidogenic bacteria:acetogens were 95:5 and 87:8, respectively.
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Authors
S. Zahedi, D. Sales, J.L. GarcÃa-Morales, R. Solera,