| 摘要 |
<p>A clarifier (7) having a sidewall port (15) for water to leave the clarifier is provided with a valve having a gate (35) to control the flow of fluid through the port. The valve is adjusted automatically as the water level rises and falls by means of a buoyant member (40) attached to the gate. A baffle of V-shape directs water to the port (15) and a port (16) at the opposite side of the clarifier, the apex extending in the directions of water flow.</p> |
