| 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 as to peel and remove bridged sludge by the water stream from the moving direction of hydrophilic branches for the adhesion of sludge, that is, the direction different from the axial direction of a shaking bed. <P>SOLUTION: The wastewater treatment apparatus has the biological treatment tank 2 for biologically treating wastewater and the shaking bed 3 installed in the treatment tank 2 and is provided with a water stream generator for applying water streams from a direction different from the axial direction of the shaking bed 3 so as to easily remove the sludge at a closed place. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
