Apparatus and method for removing fine particles from a liquid m

Details Apparatus and method for removing fine particles from a liquid m Apparatus and method for removing fine particles from a liquid m

1976-06-02

1977-10-25

Scovronek, Joseph

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

47 14, 47DIG12, 209 5, 210513, 210521, 210DIG22, 210DIG23, B01D 3520, B03D 306, C02B 180

Patent

active

040554910

ABSTRACT:
Apparatus and method are described for using ultrasonic waves for removing microscopic particles from a liquid medium, such as algae from a solar or refuse pond, or blood cells from blood. The described apparatus includes an ultrasonic generator propagating ultrasonic waves of over one megacycle per second through the liquid medium to cause the flocculation of the microscopic particles at spaced points. In two described embodiments, the ultrasonic waves are propagated in the horizontal direction through the liquid medium, and baffle plates are disposed below the level of propagation of the ultrasonic waves. The baffles are oriented to provide a high resistance to the horizontal propagation therethrough of the ultrasonic waves and a low-resistance to the vertical settling therethrough of the flocculated particles. The ultrasonic generator is periodically energized to flocculate the particles, and then de-energized to permit the settling of the flocculated particles through the baffle plates from whence they are removed.

REFERENCES:
patent: 2514471 (1950-07-01), Calhoun
patent: 2907455 (1959-10-01), Sasaki
patent: 3305481 (1967-02-01), Peterson
patent: 3489679 (1970-01-01), Davidson et al.
patent: 3499437 (1970-03-01), Balamuth
patent: 3511380 (1970-05-01), Rice et al.
patent: 3782547 (1974-01-01), Dietert
patent: 3898164 (1975-08-01), Hsiung

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