NOVELTY - The digester module comprises a mobile methanation container including a receptacle (9) for organic matter, a watertight lid (21), a sealed side door and a connector for recovering fermentation gases. The receptacle, the lid and the door are hermetic and thermically insulated. The lid is rigid and provided with gripping sleeves (23). Bolts with knuckle are placed between the receptacle and the lid to maintain the lid by compensating a pressure exerted by biogas. The lid includes a rigid frame on which two flexible cover are tightened. The flexible covers are tended on the rigid frame.    USE - The digester module is useful in an installation for methanation of an organic matter such as waste of agricultural origin, placed in an agricultural trailer such as ampliroll (all claimed).    ADVANTAGE - The digester module allows the modular, flexible methanation installation to recover gases output from the fermentation of the organic waste in a simple and cost-effective manner.    DETAILED DESCRIPTION - The digester module comprises a mobile methanation container including a receptacle (9) for organic matter, a watertight lid (21), a sealed side door and a connector for recovering fermentation gases. The receptacle, the lid and the door are hermetic and thermically insulated. The lid is rigid and provided with gripping sleeves (23). Bolts with knuckle are placed between the receptacle and the lid to maintain the lid by compensating a pressure exerted by biogas. The lid includes a rigid frame on which two flexible cover are tightened. The flexible covers are tended on the rigid frame. A heat insulator is placed between the flexible covers. The receptacle includes a percolates diffusion circuit including an external percolates input connector, a set of diffusers of percolates placed in an upper part of the receptacle and in fluid communication with the external percolates input connector, and a percolates output connector (31) that is in fluid communication with a percolates recovery zone having the agricultural waste. The percolates recovery zone includes a bottom draining of receptacle and a percolates racking chamber separated from overall volume of the receptacle by a perforated wall. The receptacle further includes a circuit for heating a coolant including external input connectors (41) and a coolant output, a serpentine extending between the external input connectors inside the receptacle, a connector of air intake, a set of sensors selected from pressure sensor, a temperature sensor and a liquid level sensor, and a connection unit placed outside of the receptacle to connect the sensors to an electric circuit. INDEPENDENT CLAIMS are included for:    (1) a reception station;    (2) an installation for organic matter methanation; and    (3) a method for controlling of an installation.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic perspective view of a mobile methanation container.    Receptacle (9)    Watertight lid (21)    Gripping sleeves (23)    Percolates output connector (31)    External input connectors. (41)