| 摘要 |
<p>PURPOSE:To perform waste water treatment with high efficiency and to obtain sufficient quality of treated water by forming a zone in the aerobic condition and a zone in an anaerobic condition alternately in an oxidizing channel by driving an aeration stirring device at high speed and low speed alternately. CONSTITUTION:Waster water is flowed through an oxidizing channel 6 from an introducing port 7 of the waste. The waste water is stirred and mixed with a revolving aerating stirrer to supply oxygen to the waste water and the waste water is treated simultaneously by fluidizing. During this treatment, the operation time of the device 5 is changed over by setting the change-over time, controlling the amt. of oxygen to be supplied without stopping the flow of the waste water in the oxidizing channel 6 forming thus anaerobic zones and aerobic zones in the upstream side and in the downstream side of the device 5 or alternately, and treated waste water is discharged from the vicinity at the upstream side of the inlet port 7. As a result, the treatment of waste water is performed efficiently and sufficient water quality is obtd.</p> |
