Analysis of biogas potential from slaughterhouse waste : case study : Lira Municipality.

Abstract

Production of biogas through anaerobic digestion of organic waste materials provides an alternative environmental friendly renewable energy. In this study, biogas production from, slaughter house waste in four mix ratios, and one other mix for inoculum were evaluated under ambient temperature, conditions (25-28°C) using batch digesters Cattle paunch has been reported to be one, of the slaughterhouse waste that require proper management treatment and a major abattoir waste volume wise in LM abattoir Cattle paunch are waste that have posed environment hazards due to, poor management and disposal strategies in most municipal slaughterhouses In all treatments, total solid and volatile solid, percent of moisture content, pH and carbon to nitrogen ratio were measured before digestion. The daily biogas production was also measured by water displacement method where the biogas was measured through brine solution displacement. Assessment of cumulative biogas and methane production showed that the substrate mix ratio of E contain containing 10 % cow dung, 10% paunch manure and 20% slaughterhouse wastewater was superior to others other overall results of this study indicate that the increase in biogas yield and reduction in volatile solid and total solid can be significantly enhanced when paunch manure is co-digested with animal dung. Around the first 2-3 days, biogas production rate was very slow due to the lag phase of microbial growth in all the digesters Standard procedure of the portable gas analyser GA2000 was used and test of two runs were made with each run taking approximately 20 minutes. The readings for gases were recorded at two-minute interval.