| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide rational wastewater treatment technique capable of certainly stirring and dispersing the lumpy object accumulated in wastewater. SOLUTION: In a wastewater treatment apparatus 1, a carrier stirring member 60 for stirring and dispersing a granular carrier C3 forming the lumpy object is arranged in a carrier fluidizing biological filter tank 30. The carrier stirring member 60 has a handle part 61, a shaft part 62, a stirring part 63 or the like and the stirring part 63 is arranged so as to be embedded in the granular carrier C3. When a worker grasps the handle part 61 of the carrier stirring member 60 to move the same in the direction shown by the arrow 90 or 92 in a drawing, the stirring part 63 is revolved in the direction shown by the arrow 94 in the drawing or moved up and down in the direction shown by the arrow 96 to generate stirring force in the stirring part 63. By this constitution, when the stirring part 63 comes into contact with the granular carrier C3 forming the lumpy body, the lumpy granular carrier C3 is stirred to be dispersed in water to be treated.</p> |
