Evaluation of the co-anaerobic digestion of food and garden wastes in a two-stage pilot system
Résumé
To test the two-phase Co-AD of FW and GW in a pilot system under mesophilic conditions at different hydraulic retention times (HRT: 2 and 3 days) and organic loading rates (OLR: 4, 6, 8, and 10 kgVS/m 3 /d).
The highest biogas and CH4 production was achieved with an HRT and an OLR of 2 days and 6 kgVS/m 3 /d, respectively. The removal of total solids, total organic carbon, total nitrogen, phosphorus, and chemical oxygen demand was 68%, 27%, 45%, 22%, and 69%, respectively.
Co-AD of FW and GW through biogas/methane production in two phases represents a promising approach for the valorization of these wastes.
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