| 摘要 |
PURPOSE:To obtain the title reactor capable of excellently carrying out stirring fluidity even with increase in amount of floating medium added, by providing a reactor equipped with an air supply means at the bottom with specific agitating elements, a liquid current guide column and straightening vanes. CONSTITUTION:A radial current type element 6 and an axial flow type element 7 are vertically fixed to the same shaft, a liquid current guide column 2 concentrically surrounding the element 7 is arranged in a reactor 1 equipped with a jetting nozzle 9 at the bottom and plural straightening vanes 3 are laid between the bottom of the column 2 and the bottom of the reactor. Stirring and fluidizing can be effected without causing retention and release of microorganism on the surface even if the amount of floating medium P is increased.
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