NOVELTY - The fermentative residue conditioning device comprises spiral filter press with filter and discharge openings for liquid filtrate and solids, and cyclone filter with raw fluid inlet arranged outside fine-meshed filter, pure fluid discharge opening connecting to the interior of the fine-meshed filter, solid discharge opening arranged outside the fine-meshed filter and rotor which rotates around the fine-meshed filter. A vibrating membrane filter is arranged after the device, with several filter membranes parallely arranged and moved to and fro in their membrane surface level.    USE - The invention deals with fermentative residue conditioning device. The method is used for the production of NK-liquid fertilizer concentrates and for the recovery of biogas.    ADVANTAGE - Cost effective fermentative residue conditioning device. The stabilization of the fermentation is improved.    DETAILED DESCRIPTION - The fermentative residue conditioning device comprises spiral filter press with filter and discharge openings for liquid filtrate and solids, and cyclone filter with raw fluid inlet arranged outside fine-meshed filter, pure fluid discharge opening connecting to the interior of the fine-meshed filter, solid discharge opening arranged outside the fine-meshed filter and rotor which rotates around the fine-meshed filter. A vibrating membrane filter is arranged after the device, with several filter membranes parallely arranged and moved to and fro in their membrane surface level. The filter in the spiral filter press exhibits perforations with a hole size of a maximum 80 microns. The height of the spiral of the spiral filter press is less than 70 cm. The three spiral filter presses are parallel operated depending upon the residue output. The spiral of the spiral filter press is designed as a screw press. The filter of the spiral filter press is mechanically supported and exhibits a Teflon (RTM: polytetrafluoroethane) surface coating. The fine-meshed filter of the cyclone filter exhibits perforations with a hole size of a maximum of 10 microns.    An INDEPENDENT CLAIM is included for method of conditioning of fermentative residues.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross section of spiral filter press.