[Physico-chemical and microbial properties in thermophilic composting processes of different biological solid wastes].

Characterization on the physico-chemical and microbial properties were carried out in thermophilic composting processes of 3 different biological solid wastes: manure, garbage and sludge. pH increased to above 8 and C/N ratio decreased during the process. The effect of different bulking agents on the composting process is smaller compared to different raw materials.