| 摘要 |
<p>PURPOSE:To prevent the generation of foaming or scum, by newly providing components such as a biological bed, a sludge barrier plate, a plate-shaped structure, a gas passage and a gas collection part, etc. so as to arrange the same organically. CONSTITUTION:Raw water is sent to a reactor 1 by a raw water pump through a raw water inflow port 2 and contacted with sludge in the biological bed 3 within the reactor 1 to be treated. The sludge rising along with gas bubbles collides with a sludge barrier plate 4-1 and 80% or more of sludge accompanied by the gas is separated from the gas to sediment downwardly. The separated fine gas bubbles C rise to be gathered and stored in a gas storage part D and are grown to large gas bubbles F while the sludge rising is perfectly sedimented in a sludge sedimentation part E. By this method, the gas G is taken out from the gas gathering part to be collected and waste water can be treated efficiently.</p> |
