PRODUCTION OF BIOGAS FROM POULTRY LITTER MIXED WITH THE CO - SUBSTRATE COW DUNG

PRODUCTION OF BIOGAS FROM POULTRY LITTER MIXED WITH THE CO - SUBSTRATE COW DUNG

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PRODUCTION OF BIOGAS FROM POULTRY LITTER MIXED WITH THE CO - SUBSTRATE COW DUNG


DOCUMENTO - ARTIGO CIENTÍFICO 


AUTORES - MOHAMMAD ROMAN MIAH, ABDUL KALAM MD. LUTFOR RAHMAN, MUHAMMAD RAJIBUL AKANDA, ADBULLAH PUALK, ME. ABDUR ROUF


RESUMO/ABSTRACT

Poultry litter (a mixture of rice hulls, sawdust and chicken excreta of broilers) mixed with the co-substrate cow dung and poultry droppings was evaluated under anaerobic conditions for the production of biogas (methane). Four laboratory scale reactors, R1, R2, R3 and R4, were set up with different proportions of waste poultry litter, cow dung and poultry droppings and had a 6% total solid concentration. Digestion was carried out for 50 days at room temperature, 32 ± 3 ◦C. Volatile solid degradation and specific gas production in the four reactors was 46%, 51.99%, 51.96%, 43% and 0.263, 0.469, 0.419, 0.221 l/g, respectively, based on the volatile solid (VS) feed. The methane yields were 71%, 72.5%, 72.6% and 70%, respectively. The COD reductions were 46.1%, 50.76%, 48.23% and 45.12%, respectively. A kinetic analysisshowed that the anaerobic digestion of poultry litter with a co-substrate followed first order kinetics. Among the experimental reactors, R2 (25% cow dung, 75% poultry litter) gave the optimum results: a VS reduction of 51.99%, a specific gas yield of 0.469 l/g and a methane yield of 72.5%.

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Profissionais, estudantes e interessados na cadeia do biogás e, atuantes nas diversas áreas, etapas de projetos ou operação na produção de biogás.

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"Curso com abordagem objetiva e completa, de fácil compreensão e com aplicabilidade real dos assuntos apresentados. "

           

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