Abstract
In this study, a Rotational Drum Fermentation System (RDFS) was constructed to develop a dry methane fermentation system for non- or low water-dilution organic waste. Characteristics of the RDFS for solid organic waste were determined. Slightly diluted dairy manure was used as a substrate of the RDFS. RDFS improved the mixing of the reactor content. The volatile acid and methane productivity showed the system feasibility for dry methane fermentation. Process parameters such as pH, VA and methane content were evaluated. The effects of operational conditions such as sludge-manure ratios (1:1, 1:2, 1:3, 1:5) and rotation time (30, 60, 120, 240 minutes/day) of the RDFS were determined.HomePageKeywords: Rotational Drum Fermentation System (RDFS), dry methane fermentation, sludge-manure ratio, rotation time