| 摘要 |
<p>PROBLEM TO BE SOLVED: To keep good aerobic decomposition. SOLUTION: The weight Wi of contents in a decomposition tank 1 is measured on the basis of a measurement signal from a strain gauge 5 by a control circuit 25. The control circuit 25 reads out standard weight Ws corresponding to the quality and quantity of a bulking material charged into the tank 1 from a memory part 27 and compares the weight Wi of the contents with the standard weight Ws. When Wi>=Ws, the capacity of a blower 2 is enlarged to increase the drying speed of the contents in the tank 1; when Wi<=Ws, the capacity of the blower 2 is reduced to decrease the drying speed to control the quantity of water. As a result, the void ratio of the bulking material filled with water and residual organic substances is adjusted.</p> |
