| 摘要 |
<p>A high denitrification shared type Orbal oxidation ditch comprises: an outer channel (1), a median channel (2), an inner channel (3) all of ellipse, and a secondary deposition tank (4). Wherein, the length of the outer channel (1) is prolonged and the secondary deposition tank (4) that is tangential to the inner wall or shares the wall with the outer channel is arranged between the outer and median channels (1, 2). All the channels (1, 2, 3) and the tank (4) are integrated in the Orbal oxidation ditch, all of the anaerobic zone, regulation zone, hydrolysis acidifying zone, primary deposition zone, sludge outer re-circulation zone and wastewater inner re-circulation zone etc. can also be arranged in other space.</p> |
