| 摘要 |
A flume for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas and/or a combination of liquid and gas. The flume includes a chamber having a top wall, a bottom wall, a left sidewall and a right sidewall. The chamber is adapted to receive a liquid, a gas and/or a combination of liquid and gas. Preferably, the flumes includes at least a first inner wall and a second inner wall. Each of the first inner wall and the second inner wall are preferably free of any orifices. The first inner wall is positioned relative to the second inner wall such that an open space is formed between the first inner wall and the second inner wall. The open space creates a first liquid/gas interface upstream of the first inner wall and the second inner wall and a second gas/liquid interface downstream of the first inner wall and the second inner wall when gas and liquid are present in the chamber. The first interface is spaced from the bottom wall of the chamber a distance greater than the second interface.
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