| 摘要 |
<p>PURPOSE:To provide a method capable of enhancing the rejection ratio of BOD, COD and nitrogenous component as compared with the conventional method in the anaerobic sewage treatment and to furnish the device having simple structure therefor. CONSTITUTION:Sewage agitating air is supplied to an anaerobic sewage treating tank 1 to the extent that the anaerobes are not inactivated. The air is intermittently supplied from a diffuser 5 furnished at the lower part in a treating tank 2 through an air feed pipe 7 with an air feeder 6 provided outside the tank 2.</p> |
