Biodigesters: Alternative energy production and organic loading reduction

In order to meet the ever increasing demand for energy it is necessary to pursue new alternative sources of energy. This paper aims to verify the production of biogas from mixtures of poultry litter and cassava wastewater, to analyze its effluents and to check the reduction of organic load. It is in an attempt to solve the environmental issue caused by the disposal of these raw materials, while producing clean and renewable energy in order to contribute to the Brazilian energy matrix. Batch digesters made of PVC fed with different mixtures from the biomasses were used for the experiment. These digesters enable the verification of the amount and the quality of biogas. Significant productions of biogas of up to 0.39 and 0.30 L d-1 were found. The organic loading reduction reached 81.95%.