| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water tank with a screen preventing clogging of the screen. SOLUTION: In the water tank with the screen of this invention water to be treated 12 is stored in a tank 10 and a microbes-immobilized carrier 14 is charged to the water 12. The screen 20 is disposed inside the tank 10, a belt 30 of a moving wall apparatus 24 is disposed along the screen 20. The belt 30 is moved around and the water 12 is fluidized forcibly. Thus the flow rate of the current along the screen 20 is increased and clogging of the screen 20 is restrained effectively.</p> |
