| 摘要 |
<p>A cylindrical reaction chamber for purifying waste water has a separating zone extending substantially along its entire length and bounded transversely by first and second downwardly converging partition walls. The space in the vessel between the vessel wall and the first and second walls form separate waste water activation zones, in at least one of which an aerating device is disposed. Such zones are so configured that separate, oppositely directed transverse swirls of the waste water are established in the respective activating zones. A portion of the agitated water, after suitable treatment by baffle plates to remove the transverse swirling component, is introduced into the bottom of the separating zone for purification via fluid filtration. A pair of guide channels extend obliquely downwardly adjacent both ends of the separating zone, thereby providing a longitudinal circulation of waste water which promotes denitrification of certain contaminants in the waste water in the absence of aeration of the second activation zone.</p> |
