Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent
1975-01-06
1980-09-23
Spitzer, Robert H.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
210170, 2101953, 210197, 210220, 210470, 210474, C02C 112, B01D 2328
Patent
active
042241553
ABSTRACT:
Sewage flows through an inflow pipe into a receiver. Large solids are trapped in the receiver, and dissolved and suspended materials pass with the waste water through apertures in the receiver wall. A lower portion of the receiver has a solid wall to trap fine heavy grits. The receiver is held suspended from a lower opening in an upward opening holder. When the receiver is full of solids, waste water flows through larger apertures in the holder. A cover of the holder is removed, and the receiver is withdrawn through an upper opening in the holder by a handle which extends from the receiver to the upward opening. One holder and receiver are mounted directly within a closed self-contained underground tank. Several tanks are coupled in parallel or series. The tanks are provided with aeration devices in a main portion and have a partition which forms a chlorifying portion with a sludge return at the bottom of the partition and a skimmer return at the top of the partition. Multiple tanks are arranged in a parallel or series. Outflow of the tanks is cascaded in an enclosure and is dispersed in injection wells. De-watering systems remove sludge from the bottom of the tank and return sludge to the inflow for further treatment. The entire self-contained system is located beneath the parking lot adjacent a multiple dwelling unit.
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Creighton Wray James
Spitzer Robert H.
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