NOVELTY - A compost target is stirred and hydrolyzed, and woody fiber is added and stirred. A polymer flocculent is then added and stirred, and the substance is squeeze-dehydrated to obtain a compost raw material.    USE - For manufacturing raw material for compost.    ADVANTAGE - The method provides raw material which can be composted in a short period of time, using a highly safe cationic naturally-occurring polymer flocculent. The supernatant liquid obtained by dehydration can also be used effectively as liquid fertilizer.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for raw-material manufacturing apparatus equipped with a storage tank (1), a stirrer (3) having a motor which rotates the rotary shaft (4) provided with a blade (5) and goes in the downward direction from the upper direction of the tank, a mixing tank (10), a flocculation tank (16), a chemical-feeding pump (20) provided in a chemical agent tank (19), a blower (22) provided at an additive tank (21), a piping connection for the blower discharge opening, mixing-tank upper portion, and chemical-feeding pump discharge opening, a screw press machine (24), a piping connection for the entrance of the screw press machine and the lower portion of flocculation tank, and a piping connection for the nozzle for water sprinkling inside the grinder at a water supply source. Hydrolysis stirring of the raw material for raw-material manufacture supplied from the insertion opening (7) is carried out by providing an electricity supply control system to each electrically powered equipment. An underwater non-clogging sewage pump (2) with a cutter is used in the storage tank.    DESCRIPTION OF DRAWING(S) - The figure shows an explanatory drawing of the raw-material manufacturing apparatus.    Storage tank (1)    Underwater non-clogging sewage pump (2)    Stirrer (3)    Rotary shaft (4)    Blade (5)    Insertion opening (7)    Mixing tank (10)    Flocculation tank (16)    Chemical-agent tank (19)    Chemical-feeding pump (20)    Additive tank (21)    Blower (22)    Screw press machine (24)