Written Paper
EVALUATION OF THE SYSTEM BIODIGESTOR-CHANNEL OF DRYING IN THE TREATMENT OF RESIDUAL SWINISH [2000]
Chao, R., Instituto de Investigaciones Porcinas. Gaveta Postal No. 1, Punta Brava. La Habana, Cuba Río, J. del, Instituto de Investigaciones Porcinas. Gaveta Postal No. 1, Punta Brava. La Habana, Cuba Sosa, R., Instituto de Investigaciones Porcinas. Gaveta Postal No. 1, Punta Brava. La Habana, Cuba
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A study on a waste treatment system was carry out. The system inclueded a fix dome digestor and drying bed with a hydraulic retention time of 20 days. The study look place in a pig farm of 10 sows with offspring of 117 animals. The pig were fed with processed offals from a pig slaugther house and final cane molasse. After treatment the oxygen chemical demand (COD) decreased until 95 %witch can be considered high for this type of sytem. The dray matter on the solid fraction was 91.4 %, marking it suitable for an organic fertilizer, to be packed, storage and transport. The economical analysis showed the profitability of the investiment using biogas and effluents as agiee fertilizer