Liquid purification or separation – Processes – Separating
Patent
1995-06-07
1997-06-10
Spear, Frank
Liquid purification or separation
Processes
Separating
210241, B01D 2124
Patent
active
056372337
ABSTRACT:
A volume of slurry including grease, water and sediment is pumped from a grease trap into a first interior compartment of a mobile tank truck, and the sediment allowed to settle. Some of the grease and water is then transferred from above the settled sediment to a second interior compartment through a tubular conduit, using a siphoning action. Water is then drained out through a discharge pipe from the bottom of the second compartment below the transferred grease and returned to the grease trap, retaining the transferred grease in the second compartment. The process is repeated for successive volumes of pumped slurry until the second compartment's capacity for retaining grease is reached. In one embodiment, the siphon conduit has a transparent U-bend tube running outside the truck for viewing the flow of transferred slurry. An intake end of the conduit extends into an open-topped sleeve and a conical deflector keeps sediment out of the sleeve. The discharge pipe is transparent for viewing flow from the drain. In another embodiment, the conduit has a "P"-shaped leg.
REFERENCES:
patent: 4816167 (1989-03-01), Vanderslice
patent: 4818399 (1989-04-01), Midkiff
patent: 5098580 (1992-03-01), Anderson
Franz Warren L.
Spear Frank
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