| 摘要 |
<p>Raw feed water is continuously clarified at a large throughput rate in a single, shallow tank clarifier (10) using a flotation process, and apparatus, in which flotation is carried out simultaneously in multiple sectors (64) of the tank clarifier (10). Raw water is fed in through a rotating trough (50). A fixed manifold system (24) in the trough (50) dispenses pressurized water containing dissolved air to release microscopic air bubbles. A set of headers (28) each radially extend outwardly from the rotating trough (50). Each header (28) distributes water and bubbles to a sector (64) of the tank clarifier (10) with a net zero velocity. A set of rotating extractors (30) each receives clarified water from the bottom of the preceding sector (64). A set of scoops (32) skims floating sludge from the water in the tank clarifier (10).</p> |
