| 摘要 |
<p>PURPOSE:To obtain the device with which the treatment efficiency is enhanced and the running and maintenance costs are reduced by providing the suction and discharge ports of a pipe in a reaction vessel, connecting a pressurizing means to the upper part of the pipe and connecting a means for exhausting a gas in a pressurized chamber and agitating a liq. mixture in the vessel. CONSTITUTION:The inside of the pipe 15 is pressurized by a booster pump 24 constituting a pressurizing means 16 to form the pressurized chamber 17 at all times at the upper part of the pipe, a valve 25 constituting an evacuating means 18 is opened at regular time intervals, hence the pressurized chamber 17 is intermittently exhausted, and a liq. mixture 9 in the vessel close to its bottom 1a is intermittently sucked into the pipe 15. Consequently, the liq. mixture 9 close to the bottom 1a is intermittently agitated, the dead space is effectively broken by the dynamic pressure, and efficiency in treating waste water is improved. The power cost is low as compared with the method in which waste water is forcedly circulated in the reaction vessel 1, and the running and maintenance costs are drastically reduced.</p> |
