PROCESS AND APPARATUS FOR THE TREATMENT OF ORGANIC WASTE Russian patent published in 1995 - IPC

FIELD: agriculture. SUBSTANCE: material to be treated is predried at 100-130 C and then dried in the hot gas counterflow with the gas temperature increasing as the material moves. Later in the process the material is passed through a pasteurizer in which it is disintegrated, separated and further dried with a heat transfer agent at a more elevated temperature. At the final stage the material is disinfected at 640-740 C. The apparatus has a drier with a heating means mounted in it. The heating means has the form of drums concentric with each other and carrying working members for the form of drums concentric with each other and carrying working members for the material disintegrating, mixing and travelling. A pasteurizer-separator is enclosed inside the end portion of the drums interior. Effluent gases are purified in four steps. At the final step they are subjected to a biological filter treatment. EFFECT: intensified treatment process. 1 cl, 1 dwg