Methane fermentation as a pro-ecological method of biogas generation and of sewage sludge and vinasse utilisation

The comparison of a quasi-continuous methane fermentation process, on two kinds of organic waste: sewage sludge and vinasse is presented in the work. The quantity of biogas generated from every kind of the examined matrixes has been determined. For both matrixes the quality of the generated biogas, determined by the contents of methane and carbon dioxide, have been investigated. The degree of reduction of dry organic mass as well as the yield and material efficiency of the process have been determined for the examined substances. It is determined by the quantity of the biogas generated in between the dosing of the fresh portion of the examined organic matrix into the digestive chamber.