| 摘要 |
<p>PROBLEM TO BE SOLVED: To circulate liq. excreta in a treating tank by aeration, to eliminate a bubble where generated and to easily discharge an insoluble solid from the treating tank. SOLUTION: This treating device consists of a vertical cylindrical treating tank 1 for fermenting the liq. excreta 2 of livestock. An aeration pump 6 is provided close to the lower part 3 in the treating tank 1, a stack-shaped pipe 11 is vertically erected in the center in the tank 1, and a bubble guide pipe 13 is extended below the liq. surface to surround the pipe 11. A defoaming device 16 is connected to the upper opening 13a of the guide pipe 13, the defoaming device 16 consists of a defoaming machine 23 furnished with a propeller 14 and an annular corridor, a cleaning soln. inlet 27 is provided on one side of the corridor, and a discharge groove is furnished on the other side and attached to the upper opening 13a of the guide pipe 13.</p> |
