NOVELTY - The chamber (11) comprises a unit for continuously transporting the material and for rotating the chamber along its horizontal axis, an inlet for the continuous flow of material to be treated, an outlet (16) for the continuous flow of treated material at opposite ends of the horizontal axis of the chamber, a unit for controlling an inclination of an inner surface of the chamber in the direction of movement, a stirring piece, a unit for heating of chamber, a unit for maintaining the temperature inside the chamber, and a unit for cooling of chamber such as irrigation of part of the chamber.    USE - The chamber is useful in a plant for continuous enzymatic treatment of material having a certain content of organic material (claimed), where the material includes household, agricultural or industrial waste.    ADVANTAGE - The chamber ensures rapid, efficient, economic and continuous enzymatic treatment of material having the certain content of organic material without pollution.    DETAILED DESCRIPTION - The chamber (11) comprises a unit for continuously transporting the material and for rotating the chamber along its horizontal axis, an inlet for the continuous flow of material to be treated, an outlet (16) for the continuous flow of treated material at opposite ends of the horizontal axis of the chamber, a unit for controlling an inclination of an inner surface of the chamber in the direction of movement, a stirring piece, a unit for heating of chamber, a unit for maintaining the temperature inside the chamber, a unit for cooling of chamber such as irrigation of part of the chamber or placing of part of the outer surface of the chamber in a water bath, a unit for controlling the retention time in form of a control system controlling speed and direction of the rotation, a unit for adding reaction medias such as steam or water or acid or base or reactants such as enzymes to the material to be treated, a feeding device (1), and a pushing device (5). The unit for transporting the material from the inlet to the outlet comprises upright walls attached to the inside of the chamber, where the walls form a spiral extending throughout the horizontal length of the chamber so that the upright walls continuously move the material in a horizontal direction upon rotating the cylinder. The upright walls at one or all rotation angles form separated sections along the lowest part of the inside of the chamber. The upright walls are placed in an angle of alpha =40-90 degrees relative to the direction of movement of the treated material. The inner surface of the chamber is inclined downwards in the direction of movement that is from the inlet to the outlet. The stirring piece is fastened between two successive parts of the upright walls either to the inner surface of the chamber or to the upright walls, and is profiled as a Y or a V, where the lower edge is in contact with or turned towards the inner surface of the chamber. The rotating unit is provided outside the chamber, and provides rotation of the chamber in two directions such as clockwise and counter clockwise directions. The outlet is further configured for removing heated air from the chamber. The material to be treated is pre-treated, heat treated or cooled before the enzymatic treatment. The feeding device comprises a unit for providing compaction of material fed to the chamber before the material enters the chamber. The pushing device comprises a piston, which is moved backward and forward while pushing the material, which is fallen down or pressed down to the bottom of a hopper (3) out of a transport room (4) and into an entrance part. INDEPENDENT CLAIMS are included for:    (1) a method for treating material; and    (2) a plant for enzymatic treatment of material.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a reaction chamber.    Feeding device (1)    Hopper (3)    Transport room (4)    Pushing device (11) Chamber (5)    Outlet. (16)