NOVELTY - The apparatus comprises a closed tank (1), which is provided with a gasometric bell (4) in its top portion for storing and pressurizing a produced biogas. External members of the apparatus are distributed around the tank on a pod (6) forming a support for a body of a digester. The tank comprises a main enclosure and a secondary central enclosure called a crop (2). The apparatus operates in two operating modes. In the first mode, the level of the main enclosure is stable, and the crop is intended to receive and store an organic waste before the dosing of same into the main enclosure.    USE - The apparatus is useful for receiving and processing organic waste by anaerobic bioconversion (claimed), where the organic waste is food wastes from kitchen of small establishments and offices as large establishments.    ADVANTAGE - The apparatus is capable of efficiently and economically receiving and processing the organic waste with high integration and low maintenance.    DETAILED DESCRIPTION - The apparatus comprises a closed tank (1), which is a bioconversion site, and provided with a gasometric bell (4) in its top portion for storing and pressurizing a produced biogas. External members of the apparatus are distributed around the tank on a pod (6) forming a support for a body of a digester. The tank comprises a main enclosure, and a secondary central enclosure called a crop (2). The apparatus is configured to operate in two operating modes. In the first mode, the level of the main enclosure is stable, and the crop is intended to receive and store an organic waste to be processed before the dosing of same into the main enclosure to complete the bioconversion. In the second mode, the level of the main enclosure varies with the supply and the level of the crop, which is stabilized. The crop forms a removable subassembly with a circulation and distribution block (3) on which it is secured with a liquid-solid phase separator. The subassembly engages with a mechanical stirrer for stirring a fermentative medium contained inside the tank driven by the gasometric bell, which is centered and rotated by a drive device carried by an arm of a telescopic bracket or by a drive ring. The gasometric bell comprises two compartments separated by a concentric annular wall, which is placed on an outside above the main enclosure of the tank and in a center placed over the crop so that the gasometric bell is applied on a seal provided around a periphery of the separator that is mounted over the crop and isolated from the main enclosure of the vessel in a sealing manner when the depressurization is applied on the apparatus. An upper part of the central compartment of the gasometric bell is constituted by a gate whose opening gives access to an internal unit of the crop without breaking the confinement of the main enclosure of the tank after disconnection of the drive ring when worn by the arm of the bracket. The circulation and distribution block has a compartmentalized housing connected to circulating circuits inside which a volumetric pump and a multichannel dispenser having four channels are housed, and controlled by an indexer that is internal or external to the circulation and distribution block and the tank. The circulation and distribution block is arranged on the pod placed over the tank and connected to the crop. A multiway valve comprises a core constructed as a removable cartridge comprising a rotary plug so as to simultaneously position and connect in its housing. The pump is driven from an outside of the tank via a rotating shaft associated with a hydraulic seal carried by a cover of a door or from the inside by a built-in motor subassembly crop when the pump is located within the crop. The pump is driven by a motor carried by the bracket. The pump, the removable cartridge and the multiway valve indexer are a subset, which automatically connects to a self-driving power at the time of establishment. An internal stirring of the crop utilizes blades connected to an end of an axis passing through the pump motor. The tank is made in one piece and all of the external door bodies of the apparatus on the pod that occupies a periphery of the water seal, or the tank is made in two separable parts, where the lower part is implanted in a soil, and the upper part comprises a lid. A part of the apparatus constituted by the hydraulic seal gasometric bell is a removable nacelle, which includes the external members of the apparatus. The apparatus is connected to devices, each of which comprises a mill providing a same degree of reduction in particle size of materials introduced into the crop. The automatic operation and remote monitoring of the apparatus are provided by a programmable controller. The controller is arranged to ensure full accounting of material flows and fluids circulated within the apparatus. The accounting includes counting the water consumption of each of the mills connected to the digester in relation to the quantities of waste introduced by the digester so as to control the rate of dilution. An INDEPENDENT CLAIM is included for a method of implementing an apparatus for receiving and processing organic waste by anaerobic bioconversion.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic sectional view of a digester in a service position.    Closed tank (1)    Crop (2)    Circulation and distribution block (3)    Gasometric ball (4)    Pod. (6)