Patent ID: 8444854

Claim:
A process for the treatment of a mixture of solid and liquid organic wastes, wherein it comprises the following stages: milling the solid and liquid wastes; recovering a higher liquid content fraction of the waste, the dry matter content of said higher liquid fraction of the waste being between about 5 and about 20%; another fraction of the waste being a lower liquid content fraction having a dry matter content greater than 20% is transferred to a thermophilic or mesophilic aerobiosis treatment unit; treating the higher liquid content fraction by methanization to produce gas and using the gas to produce the heat required for treatment of the waste in the aerobic phase mesophilic or thermophilic treatment unit; then incorporating the methanized higher liquid content fraction with the lower liquid content fraction treated by thermophilic or mesophilic aerobiosis in order to obtain a substrate having a dry matter content comprised between about 20 and about 50%; treating the resulting substrate by mesophilic or thermophilic anaerobiosis; and recovering said treated substrate in the form of compost.