| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wastewater treatment apparatus, especially a biological treatment tank using a shaking bed constituted so that the average flow speed of the water streams to the respective parts in the shaking bed is made equal by changing the position of the shaking bed in the treatment tank without using a flow adjusting plate and capable of reducing the irregularity of the adhesion amount of sludge. <P>SOLUTION: The wastewater treatment apparatus has the treatment tank 2 for biologically treating wastewater, the shaking bed 3 supporting microorganisms in the treatment tank 2 and the support member 7 for supporting the shaking bed 3 and drive part 8. The position of the shaking bed 3 is changed by the drive part 8. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
