| 摘要 |
<p>PROBLEM TO BE SOLVED: To keep high treatment performance even while reducing power consumption by constituting the equipment so that an aeration device is continuously operated by such variable operation that the aeration is started, reduced or stopped at optional time intervals to continuously form a mountain part and a valley part in an efficiency curve of dissolved oxygen. SOLUTION: The power source of the aeration device 5 itself is turned on or off using the equipment. Namely the operation condition of the aeration device 5 is adjusted variable so that the aeration is started, stopped, reduced or the like under alternate operation or the like at specified time intervals and the mountain part and the valley part are continuously formed in the efficiency curve of dissolved oxygen. It is most preferable that the device 5 is operated periodically under periodical skip operation or cyclic operation. Furthermore experimental control can be carried out by connecting a computer 2 to this equipment. As an application method, a measurement means such as a sensor part 7 that can decide an oxygen-dissolved state in the water can be further connected to the computer 2 to continue sending the information to be decision reference at a real time.</p> |
