Energy conserving method of water treatment

Details Energy conserving method of water treatment Energy conserving method of water treatment

1994-07-08

1996-01-16

Lithgow, Thomas M.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210712, 210744, 210806, 210805, 210804, 2101951, 210197, 210202, 2102212, 210294, 210320, B01D 17035, C02F 124, C02F 900

Patent

active

054845343

ABSTRACT:
An energy conserving method and apparatus for using induced gas flotation to separate finely dispersed oil and solids from water and doing so in such a manner as to minimize the power consumption, reduce the amount of water carried with the oil and solids skimmings and eliminate complex mechanisms that would require a high degree of maintenance.
Initial flotation gas is induced through a high velocity venturi using the inlet flow to supply the kinetic energy. Secondary flotation is supplied by inducing the vapor through a high velocity venturi utilizing recycled water to provide the kinetic energy. A single pump, of relatively low horse power, circulates the recycled water.
The oil and solids skimmed from the surface of the water are transferred to an integral compartment for dewatering. The water is returned to the process stream by the single recycle pump.

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