TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The outlet is provided with a first screen. The collection container inlet is provided with a second screen. The outlet opens into a distributor channel and/or a ring line, which is horizontally rotating around the casing in the region of compost opening associated to the casing. The distributor channel and/or ring line is mounted at the compost opening. The collection container base opens in the horizontal circumferential distributor channel and/or ring line and is optionally a part of this. The horizontally rotating distributor channel and/or ring line comprises water discharge opening, preferably water draining opening and optionally water overflow opening. The water-distributive- and water storage woven fabric is associated to the water discharge opening, preferably water draining opening. The casing is made of many segments, which is assembled at the casing. The segments are provided with a closed structure forming reinforcement ridges at its inner side. The reinforcement ridges are arranged in a roof-type manner, and the segment walls are provided with through holes, preferably ventilation holes. The water-distributive- and water storage woven fabric is associated to the inner side of the casing. The water-distributive- and water storage woven fabric at least partially covers the inner side of the casing. The lid is divided into two parts, where both parts are connected via a hinge with each other in an articulated manner. The two parts are fixed on the casing, and one of the parts is detachably fixed at the casing. The lid for setting the casing is provided with the through hole, which is distributively arranged at the lid edge. The through hole, which is detachably associated to one of the part, opens towards the lid circumference. The through hole, which opens towards the lid circumference, is constricted in the transition area with respect to the through hole diameter. The lid is introduced into the casing opening. The safety bar, which is connecting the two adjacent segments, is detachably mounted to the casing. The safety bar exhibits a geometry, which is above the narrow part, and/or an inner width corresponding to the narrow part width of the safety core section. The safety bar comprises at least two sections with cross section, in its longitudinal extension. The two sections are each connected over a section with strip-shaped cross section, where the strip-shaped cross-section has the function of a spring hinge.