Liquid purification or separation – With means to add treating material – Directly applied to separator
Reexamination Certificate
2005-04-26
2005-04-26
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
With means to add treating material
Directly applied to separator
C210S201000, C210S232000
Reexamination Certificate
active
06884347
ABSTRACT:
Systems and methods for treating wastewater are disclosed. A wastewater treatment apparatus may include an intake unit, one or more gravity separation air flotation units, and a discharge unit. The units or components may be modular and compatible, have standardized sizes, shapes, and configurations, and may be assembled from a limited number of standardized panels having standard size, shape, and configuration. The apparatus may be expandable and allow the insertion of additional modular standardized components made of panels. The intake unit may include a split input manifold and baffle. A gravity separation air flotation unit may contain a raking system for removal of a floc blanket that includes a blade with wheels or rollers that roll along a shelf attached to the unit to distribute the weight of the blade. Sludge containing particulate contaminants separated from the wastewater may be added to a sludge tank that contains a chute and a cutter to assist with adding sludge thickening agents such as diatomaceous earth.
REFERENCES:
patent: 1903517 (1933-04-01), Ruth, Jr.
patent: 4923600 (1990-05-01), Krofta
patent: 5173184 (1992-12-01), Krieger
patent: 5288737 (1994-02-01), Krieger
patent: 5383241 (1995-01-01), Krieger
patent: 5423981 (1995-06-01), Krieger
patent: 5534159 (1996-07-01), Krieger
patent: 5609769 (1997-03-01), Krieger
patent: 5755973 (1998-05-01), Krieger
patent: 6126815 (2000-10-01), Kelada
Faegre & Benson LLP
Kriegco Wastewater Systems, Inc.
Lithgow Thomas M.
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