Abstract: A container for fermenting bio-degradable substances, the container comprising: a base and a wall, wherein an interior of the container is enclosed by the base and the wall; a rotatable agitator that protrudes into the interior and is supported in an upper bearing and a lower bearing in an installed position of the rotatable agitator in the container, wherein the rotatable agitator includes a shaft that is drivable by a drive, wherein at least one stirring paddle is arranged at the shaft and configured to co-rotate with the shaft so that substances arranged in the container are stirrable, wherein the lower bearing is arranged at the at least one base of the container and a bearing device located at a lower end of the shaft is supported in the lower bearing in the installed position of the rotatable agitator.

Abstract: A mixing device for an application in a container including a rotatable shaft; a drive device through which the rotatable shaft is drivable; and at least one mixing element arranged at the shaft, wherein the mixing element is rotatable together with the shaft, wherein the shaft includes a support device connected with the shaft, wherein the support device is arranged in an end portion of the shaft that is oriented away from the drive device, wherein the shaft is rotatable about its longitudinal axis relative to the support device, wherein the mixing device is supportable through the support device in a receiving device connected with the container, wherein the support device is moveable by a straight bearing or a rolling element bearing along a guide device into the receiving device, wherein the straight bearing includes at least one sliding surface that is moveable on a corresponding sliding surface.

Abstract: A mixing device for an application in a container including a rotatable shaft; a drive device through which the rotatable shaft is drivable; and at least one mixing element arranged at the shaft, wherein the mixing element is rotatable together with the shaft, wherein the shaft includes a support device connected with the shaft, wherein the support device is arranged in an end portion of the shaft that is oriented away from the drive device, wherein the shaft is rotatable about its longitudinal axis relative to the support device, wherein the mixing device is supportable through the support device in a receiving device connected with the container, wherein the support device is moveable by a straight bearing or a rolling element bearing along a guide device into the receiving device, wherein the straight bearing includes at least one sliding surface that is moveable on a corresponding sliding surface.