Apparatus for collective management and production of microorganism by photosynthesis

PURPOSE: To provide the subject apparatus having a photobioreactor provided with a deaeration means to remove oxygen and undissolved carbon dioxide gas, an expansion tank, etc., and capable of efficiently carrying out the photosynthesis with microorganism suspended in a liquid medium. CONSTITUTION: A suspension 1 of a microorganism (microalga) is poured from an expansion tank 2 holding the suspension into a tubular photo-bioreactor 6 with a pump 4. The tank 2 suppresses the volume fluctuation in the photo- bioreactor caused by the accumulation of gas. The pipe 10 for supplying the medium to the photo-bioreactor is provided with a carbonater 12 for supplying carbon dioxide. Deaeration means 36 are placed at both sides of the photo- bioreactor 6 to remove the oxygen produced by the photosynthesis in the photo- bioreactor 6. COPYRIGHT: (C)1989,JPO