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|  |  | Ogunwande, Gbolabo Abidemi. |  | Poultry manure, cow dung and swine manure were digested in cube-shaped anaerobic digesters of equal volume but different surface areas (SAs) (5.38, 10.0 and 11.6 dm2) in a two-factor experiment. The digesters were agitated once a day during the experiment. The results showed that neither the manure type nor SA affected (p > 0.05) substrate temperature and pH, but both had (p ≤ 0.05) on biogas yield (BY. Poultry manure had the highest BY followed by swine manure and cow dung (1.00, 0.59 and 0.11 dm3 kg-1 VS fed day-1, respectively). Within the SAs investigated, BY increased as digester SA increased (0.27, 0.68 and 0.74 dm3 kg-1 VS fed day-1 for 5.38, 10.0 and 11.6 dm2, respectively). The results of the regression analysis showed that digester diameter to... |  
| Tipo: Info:eu-repo/semantics/article | Palavras-chave: Biogas yield; Digester surface area; Poultry manure; Swine manure; Cow dung. |  
| Ano: 2017 | URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3861 |  |  |  
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