Liquid purification or separation – Structural installation
Patent
1990-09-24
1992-02-18
Silverman, Stanley S.
Liquid purification or separation
Structural installation
2102421, 210523, 210525, 210541, B01D 2128
Patent
active
050891189
ABSTRACT:
A spraying system to be used on wastewater settling tanks for skimming the top scum layer into a drain. The system includes a spray nozzle that causes the top liquid layer to move in a circular fashion about the center of the tank. The nozzle can be in the form of a wall mounted spray unit that sprays water onto the surface of the contained wastewater. The nozzle can also be in the form of a multiorificed tubular body mounted directly onto the top of the drain trough. Water sprayed from the latter nozzle is directed into the trough and thereby causes a suctioning of the scum layer into the drain. The system can employ either of the nozzles or both nozzles in combination.
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Silverman Stanley S.
Upton Christopher
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