NOVELTY - The apparatus comprises a mill (3) for fine crushing incoming organic material, a mixing device injecting microorganisms in the mill, a receiving vessel (14), a blade (16), a sensor control (20), an air inlet screen (18) and an air suction pump, where the vessel is managed using a motherboard electronics and power management. An endless screw is installed in the bottom of the tank, where the screw leads to the vessel for receiving the compost. A sloping surface is formed in the vessel for oxygenating the compost in the vessel.    USE - The apparatus is useful for mechanical and biological treatment of materials of organic origin (claimed) such as organic muds in a sewage treatment plant and reseeding biological basin, treating food or biodegradable waste from school canteens or company canteens , treating green waste from mowing lawns or green waste such as marine algae, treating organic waste of paperboard, wood and printed or unprinted matter.    ADVANTAGE - The apparatus allows efficient treatment of organic sludge, facilitates biological digestion, and allows coexistence of multiple strains so as to avoid predation and bacterial competition.    DETAILED DESCRIPTION - The apparatus comprises a mill (3) for fine crushing incoming organic material, a mixing device injecting microorganisms in the mill, a receiving vessel (14), a blade (16), a sensor control (20), an air inlet screen (18) and an air suction pump, where the vessel is managed using a motherboard electronics and power management. An endless screw is installed in the bottom of the tank, where the screw leads to the vessel for receiving the compost. A sloping surface is formed in the vessel for oxygenating the compost in the vessel. A transfer pipe transfers fluid to the vessel and is connected to a discharge pipe towards a network. The air of the vessel is aspired towards a filtered air outlet using a pump, passes through the housing of an air filter and is discharged through an air outlet conduit. The vessel is made of stainless steel. The micro-organisms are diluted with water, heated by a resistor and oxygenated, before injecting into the mill. The air filter comprises a container filled with filter materials such as pozzolan or zeolite. The screw has an angle of 3.5-5 degrees . The sloping surface is provided with small holes of 0.2 mm to obtain fine air bubbles. An INDEPENDENT CLAIM is included for a method for degradation or transformation of the finely powdered solid or liquid organic matter.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of an apparatus for mechanical and biological treatment of materials of organic origin.    Mill (3)    Receiving vessel (14)    Blade (16)    Air inlet screen (18)    Sensor control. (20)