2008 Volume 70 Issue 2 Pages 72-79
The performance of mesophilic dry anaerobic digestion for the treatment of municipal solid waste through co-digestion with swine manure was evaluated. The co-digestion process was conducted on a pilot-scale (20 liters of effective fermentation volume) operating in the mesophilic range (37°C). Biogas production rate was about 0.3ml/g-volatile solids (VS), and the threshold of organic loading rate was about 6g-VS/kg-sludge·day. A correlation was obtained between biogas yield and organic loading rate, y=0.3x (y: biogas yield, x: organic loading rate), when x was below the threshold, and VS removal efficiency was about 39%. The results showed that a mesophilic dry anaerobic codigestion process is an alternative feasible process for treating livestock manure and organic fraction of municipal solid waste.
