| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent clogging of an air jetting part caused by a formation of a boundary of air and liquid at the air ejecting part for feeding air into a water collection tube, in a water purifying device for sucking surrounding water through a water collection tube erected in a treating layer carrying microorganisms. SOLUTION: This water purifying device is provided with the treating layer 7 for purifying water 3 to be treated, the water collection tube 8 for collecting the water to be treated in the treating layer 7, and an air ejecting means 9 for collecting the water to be treated in the treating layer 7 into the water collection tube 8 by a action of the air ejecting part 10 and discharging it to the outside. In this case, a means for introducing the water to be treated into the air ejecting part 10 at the time of stopping the ejection of air from the air ejecting part 10, is provided in the device.</p> |
