Liquid purification or separation – Processes – Separating
Patent
1991-09-10
1993-06-15
Dawson, Robert A.
Liquid purification or separation
Processes
Separating
210520, 210528, 210525, B01D 3700, B01D 1200
Patent
active
052194701
ABSTRACT:
A sludge removal apparatus for a clarifier tank includes a rotatable or stationary sealed sludge collection box submerged in the tank and surrounding a vertical, central influent column. The collection box is positioned at any elevation between the tank bottom to a position just below the liquid/solids level in the tank. A rotatable rake arm or pick-up pipe or sludge collection duct may be affixed to and rotates with the box and a driving cage to push or pick-up sludge at the tank bottom for transport to the collection box. A substantially constant flow of sludge may be provided in the collection box by valved or adjustable orifice control over the flow of sludge from the pick-up pipe(s) or duct(s) or center tank cone. A fixed flanged manifold spool with spaced branches is positioned between flanged vertical sections of the center column and sludge is transported from the collection box through the branches to a concentric sludge withdrawal pipe extending downwardly within the center column.
REFERENCES:
patent: 3025966 (1962-03-01), Kivell
patent: 3314547 (1967-04-01), Kivell
patent: 3486628 (1969-12-01), Darby
patent: 3487017 (1969-12-01), Thorn et al.
patent: 3770131 (1973-11-01), Davis et al.
patent: 3926805 (1975-12-01), Walker
patent: 4193877 (1980-03-01), Lillywhite
patent: 4271027 (1981-06-01), Kelly
patent: 4302328 (1981-11-01), Van Note
Mark J. Hammer, Water and Waste Water Technology, Second Edition, (1986) pp. 442-443.
Publication Bulletin No. 315-121--cover page p. 9 and last page .COPYRGT.1981, 1984 REX/ENVIREX.
Bradley Bruce D.
Coombs Steven G.
Baker Hughes Incorporated
Dawson Robert A.
Fortuna Ana M.
LandOfFree
Apparatus and method for clarifier sludge collection does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for clarifier sludge collection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for clarifier sludge collection will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1040201