| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase a microorganism holding amount of a carrier adding biologically treating device and to separate the microorganism carrier from a treated water without causing a clogging at a carrier separating means. SOLUTION: This treating device is provided with a reaction tank 10 in which a microorganism carrier 12 is packed and also to which a raw water supply means 11 is connected, a cylindrical carrier separating means 14 immersing in the tank while positioning its upper end on a liq. surface of the reaction tank 10 and provided with a waste water discharge means 16 discharging a treated water flowed inside to the outside of the tank 10, a carrier removing means 19 revoluting around an outer periphery surface of the carrier separating means and having a gap between the carrier separating means 14 and the means 19 kept smaller than the particle size of the microorganism carrier and an agitating means 13 agitating the liq. in the reaction tank and the microorganism carrier at an under side of the carrier separating means.</p> |
