NOVELTY - A resonant panel interlocked with a rotary wing of rotary feeder, is oscillated along horizontal axis. A transducer style converts gyration of rotary wing to oscillatory motion of resonant panel. DETAILED DESCRIPTION - An activation tank (2) activates the microorganism fine particle enclosed inside a receptacle (1). The tank has a fine particle insertion opening (21), a water supply opening (22) and a drain hole (23). The stir wings (24) stir the fluid inside the tank and the fluid level is controlled by a sensor (25). A feeder (3) supplies fine particle from the receptacle to the tank. The feeder is constituted by a table feeder, rotary feeder and vibratory feeder. The table feeder has a rotary wing (31) which is rotated about vertical axis of the receptacle. The rotary wing (31) ejects microorganism fine particle from drain hole (11) of the receptacle, when it is rotated by a drive motor (31M). The rotary wing of rotary feeder, is driven by a drive motor (32M), about horizontal axis of a feeder casing (34). The transducer style has a driver fixed to main shaft of rotary wing. A following gear is fixed to main shaft of resonant panel. A rear gear transfers turning force of driver to the following gear. A flat spring regulates rotation of the following gear. When the `n' teeth of relay gear contacts with teeth of the following gear, teeth of following gear is pressed by the spring and the gear is rotated within predetermined angle limits. When the contact of teeth is concealed, the following gear is rotated in reverse direction and its teeth is made to contact with adjacent (n+1) teeth of relay gear. Thus, the resonant panel is made to carry out both way angular motion for generating vibrations. The rotary wing (31) of task feeder which passes through the upper portion of drain hole (11), has a particle delivery board. Two particle guide boards are extended from the ends of delivery board along rotation direction. A joint board loaded with a rotation shaft, is joined at the edge of guide board. The rotary wing is arranged in the feeder casing so that its point contacts with receptacle through the drain hole. The point contacts with bottom edge of rotary wing (31) of table feeder and generates vibration. A dehumidifier is provided to dehumidify the receptacle and feeder casing.    USE -   For processing organic refuse ejected from house, shop and live stock, waste oil and in sewage works.    ADVANTAGE -   Promotes discharge of microorganism fine particle. Maintains microorganism fine particle in receptacle and feeder casing, in suitable dried condition. Easily adjusts quantity of water supplied to tank.