Liquid purification or separation – Processes – Separating
Patent
1998-07-06
1999-04-20
Lithgow, Thomas M.
Liquid purification or separation
Processes
Separating
210162, 210747, 210170, 405 87, 405 90, E02B 508, B01D 3502
Patent
active
058955798
ABSTRACT:
A method and apparatus for controlling the fluid flow through a waste fluid inlet channel, such as for a sewage treatment plant, includes a weir that may be inserted into the channel. The weir may be one or more plates that serve to reduce the effective cross section of the channel. The plates may be shaped so that the channel is more restricted at greater depths, or may be combined to form such other shape, in order to provide desirable flow patterns. Plates may be added, removed, or exchanged with different sized plates, to accommodate a range of fluid volume at a desired flow rate. The plates may combine with a bar rack, and will not interfere with the cleaning thereof. The plates may be positioned to allow grit to flow through without impediment.
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Schloss Charles M.
Snyder Charles E.
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