The anaerobic digestion process on a pig farm

Biomass is the scope of plant and organic matter contained in the disposal of waste arising from agricultural, domestic and municipal activities. However, the availability and use of biomass have the potential to solve the environmental problems caused by fossil fuels. In this sense, the swine is considered an activity of great pollution potential, which through anaerobic digestion technology allows management of waste. And evaluating the type of treatment used is efficient characterization of residual biomass has become a very important procedure. The aim of this study was to evaluate the efficiency of the process of anaerobic digestion in the treatment of residual biomass in a swine herd. Physico-chemical analysis of the parameters of pH, alkalinity, total solids, DBO and DQO of the effluent from the farm in the period October 2010 to May 2011 were performed. Variables analyzed allowed us to verify that the digesters are operated with satisfactory average range pH ranging from 7.36 to 7.66, and obtained an overall removal efficiency 67.38% and 52.61% for DBO and DQO, respectively. Thus, the results suggest that was efficient purification of the biomass by anaerobic digestion process and is consistent with similar systems treatments, however, to ensure higher efficiency of this procedure, it is important to monitor the management and maintenance of biomass digesters.