| 摘要 |
PURPOSE:To achieve excellent economical efficiency and good user's convenience by shortening the response time of the passage changeover of the high and low load sewage treatment parts of sewage treatment equipment for treating garbage and automatically operating garbage treatment device without requiring electric energy. CONSTITUTION:An upper drain passage 26 is provided to a garbage grinding treatment chamber 27 and a valve mechanism 26 opened when the pressure of the sewage stored in a grabage treatment device 11 becomes a definite value or more is provided to the main drain passage 21 in the vicinity of a flow down chamber 20. |
