NOVELTY - Fermentation apparatus (1) has a processing bed (11) on which to-be-treated material (A) is stored for processing. The processing bed has an aeration trough (13) including a diffusion tube (14) with aeration holes (14a). The inlet tubes (15) are positioned inside the diffusion tube, for supplying air (V) or water (L). A wastewater drain mechanism including a drain pipe (16), is positioned in the aeration trough such that an external drain pipe (160) extends from the drain pipe towards a sump pit (161).    USE - For fermentation apparatus for recycling organic waste materials such as shochu liquor strained residue to compost and soil improvement material.    ADVANTAGE - The supply of air for performing fermentation processing, is stabilized, and so stable processing conditions of the to-be-processed material, are achieved, and the fermentation process can be carried out stably. The generation of clogging in aeration holes in the diffusion tube, is released by the water flow through the holes, and so the management of the fermentation apparatus can be performed efficiently and easily.    DETAILED DESCRIPTION - Fermentation apparatus (1) has a processing bed (11) on which to-be-treated material (A) is stored for processing. The processing bed has an aeration trough (13) including a diffusion tube (14) with aeration holes (14a). The inlet tubes (15) are positioned inside the diffusion tube, for supplying air (V) or water (L). A wastewater drain mechanism including a drain pipe (16), is positioned in the aeration trough such that an external drain pipe (160) extends from the drain pipe towards a sump pit (161). The apparatus has several aeration troughs arranged along the width of a processing unit (110) such that several processing units arranged in parallel in the processing bed. The rubbles (S) are packed in each aeration trough. A stirring apparatus (2) is positioned with respect to the processing unit, for stirring the to-be-processed material, by moving the stirring apparatus along the longitudinal direction of the processing unit. A heater (182) is connected in the air supply path supplying air to the inlet tube. The water is supplied from the inlet tube to the diffusion tube for functional maintenance of the diffusion tube.    An INDEPENDENT CLAIM is included for fermentation apparatus management method.    DESCRIPTION OF DRAWING(S) - The figure shows a perspective view of the fermentation apparatus, and a sectional view of the aeration trough. (Drawing includes non-English language text)    Fermentation apparatus (1)    Stirring apparatus (2)    Processing bed (11)    Aeration trough (13)    Diffusion tube (14)    Aeration holes (14a)    Inlet tubes (15)    Drain pipe (16)    Processing unit (110)    External drain pipe (160)    Sump pit (161)    Heater (182)    To-be-processed material (A)    Water (L)    Rubbles (S)    Air (V)