NOVELTY - The culture apparatus has a culture room (5) that stores organic compound for culturing microorganisms. The osmotic pressure adjustment chamber (6) is adjoined to culture room. A separation portion is provided between the culture room and osmotic pressure adjustment chamber for transferring organic compound between culture room and osmotic pressure adjustment chamber using the exchange agent.    USE - Culture apparatus for fermenting organic waste such as organic refuse, animal excrement, discarded timber and fallen leaves from industry.    ADVANTAGE - The content of exchange agent can be controlled in the culture room effectively.    DETAILED DESCRIPTION - The culture apparatus has a regulator accommodated between osmotic pressure adjustment chamber and culture room for differing osmotic pressure and magnetic flux density in osmotic pressure adjustment chamber. A moving force generation unit changes osmotic pressure, and magnetic flux density in osmotic pressure adjustment chamber. A microorganism injection hole which is provided in culture room and osmotic pressure adjustment chamber injects microorganisms. An electrode having anode and cathode electrodes applies voltage to the organic compound provided in culture room and osmotic pressure adjustment chamber. The anode electrode exists in organic compound stored in osmotic pressure adjustment chamber. The electrode applies electric current to organic compound. The gas injection pipe injects gas by the regulator in the osmotic pressure adjustment chamber. A separation portion separates the liquid and fluid of organic compound. A gas discharge pipe emits the gas to the exterior of osmotic pressure adjustment chamber. A suction tube sucks the gas from the osmotic pressure adjustment chamber. A gas permeation portion surrounded by cover (2) circulates the sucked gas inside osmotic pressure adjustment chamber. An opening portion is provided in culture room and osmotic pressure adjustment chamber. A sliding portion slides the moving force generation portion along the inner wall of culture room or osmotic pressure adjustment chamber for changing volume of culture room or osmotic pressure adjustment chamber. A spindle element is fitted to the weight installation axis extended from sliding portion. A backflow preventive valve is provided in injection tube of culture room. A stirring portion provided in contact with the organic compound is provided with a stirring blade which is rotated by movement of sliding portion. A support portion supports the separation function portion (3) of separation portion. A protector covers the culture room side of separation function portion. A separation portion with air permeability is provided in surface of exchange portion. The separation portion is provided in side wall and lower wall of movement exchange portion provided within the culture room. A movement cultivation portion is moved within the osmotic pressure adjustment chamber. A temperature control unit is provided in wall surface of culture room and osmotic pressure adjustment chamber. The fluid within the temperature control unit is circulated to the exterior of culture room or osmotic pressure adjustment chamber provided with the tank structure. A circulation limiting portion limits circulation to communication hole communicating inside and outside to cover. The electric charge tinged to separation portion is selectively inhibited. An INDEPENDENT CLAIM is included for the cultivation method which involves applying voltage to the organic compound in the culture room for disinfecting saprogenic bacteria in the culture room.    DESCRIPTION OF DRAWING(S) - The drawing shows a side view of the culture apparatus.    Culture Main portion (1)    Cover (2)    Separation function portion (3)    Culture room (5)    Osmotic pressure adjustment chamber (6)