| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus therefor capable of stably treating waste water showing a large load fluctuation at a low cost and also reducing the influence on the environment. <P>SOLUTION: The apparatus for treating the waste water 1 comprises a first raw water tank 11 and a second raw water tank 15 connected and capable of supplying the stored water to each other when necessary, a third adjustment tank 19 receiving the stored water in the first raw water tank 11, a first adjustment tank 13, and a second adjustment tank 17 when necessary and being capable of supplying the stored water therein to the first and second adjustment tanks 11, 17 when necessary, an ozone reaction tower 65 for bringing the waste water after an aerobic treatment into contact with ozone for decolorization, a coagulation tank 69 where coagulant can be added to the waste water when necessary, a thickener 71, and a water discharging tank 10. When the quality of the waste water flowing into the ozone reaction tower 65 becomes worse, the coagulant is added to the waste water before or without the ozone treatment in the coagulation tank 69. <P>COPYRIGHT: (C)2007,JPO&INPIT |
