[article] Anaerobic co-digestion of three organic wastes under mesophilic conditions : lab-scale and pilot-scale studies [texte imprimé] / Lamis Yousra Shahrazed Khelifa Zouaghi, Auteur ; Hayet Djelal, Auteur ; Zineb Salem, Auteur . - 2021 . - 9014-9028. Langues : Anglais ( eng) in Environment, Development and Sustainability > Vol. 23 issue 6 (June 2021) . - 9014-9028
| Tags : |
food wastes chicken manure digested sludge mesophilic conditions anaerobic co-digestion pilot scale |
| Index. décimale : |
670.02032 Energies renouvelables - Biomasse -Déchets : biogaz - méthanisation |
| Résumé : |
"An investigation on the efciency and compatibility of anaerobic co-digestion of three substrates: food wastes (FW), chicken manure (CM) and digested sludge (DS) was carried out. Mixtures of two and three co-substrates in batch experiments were conducted in 0.5-L bioreactors during 8 days under mesophilic conditions. Parameters analysis such as pH, volatile fatty acids, free ammonia (NH3), total solids (TS) and total volatile solids (TVS)was used to explain the behavior of each substrate and their mixtures. For the anaerobic digestion of two co-substrates (CM/DS with 30/70 ratio), total biogas production was equal to 2.5 L and was greater than the volume obtained for the same ratio of FW with DS. The three co-substrates (FW/CM/DS) digestion with (20/10/70) ratio showed best perfor?mances for total volatile solids (TVS) reduction and process stability. On the pilot biore?actor, a ratio of (20/5/75) was used for (FW/CM/DS) anaerobic digestion. After 50 days
retention time, the biogas production reached 413.85 L/g TVSadd with TS and TVS reduc?tion of 79 and 87% respectively." |
[article]
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670 Energie
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Méthanisation : économie de projet
