ANAEROBIC DIGESTION OF COW AND BROILER MANURE

Anaerobic fermentation of relatively dry chicken manure and sawdust litter were performed to investigate volume and quality of biogas produced. Process was performed in 2 batch reactors at temperatures 37 degrees C and 54 degrees C without infiltrate circulation for both reactors. Concentration of methane increases up to 14% for chicken manure and slougterhouse wastes mezophylic fermentation, and up to 37% for chicken manure thermophylic fermentation, at the and of 2-month fermentation period. Anaerobic fermentation process is ongoing more intensively at thermophilic temperature 54 degrees C in reactor F4 compare to mezophilic temperature 37 degrees C provided in reactor F3. Anaerobic fermentation process is ongoing more intensively at thermophilic temperature in reactor F4 compare to mezophilic temperature provided in reactor F3.