Patent ID: 6699708
Filing Date: 2004-03-02
Classification: B09B,C05F,C12M,Y02P,Y02W

Abstract:
A process for treating a mixture of substances containing structured constituents and organic matter which is received in the form of bulk material and subjected to aerobic decomposition or aerobic drying in a reactor by means of a flow of process air therethrough and/or addition of a leaching fluid so that the soluble organic constituents are discharged, characterized in that said mixture of substances is subjected to pulse-type or periodical application of pressurized air having a pressure of more than 2 bar and directed approximately perpendicular to and/or in parallel with a direction of displacement of said mixture of substances so as to introduce shear forces and prevent channel formation, and in that at least a part of a discharged material is recirculated into the reactor as circulation material for inoculating the mixture of substances and for accelerating the biological decomposition, wherein the mixture of substance is moved towards a discharge opening by a discharge means arranged at a bottom portion of the reactor, and when the discharge means moves away from the discharge opening, the discharge means introduces forces into the bulk material.