Method and means for optimizing batch crystallization for purify

Details Method and means for optimizing batch crystallization for purify Method and means for optimizing batch crystallization for purify

1989-01-10

1990-09-04

Capossela, Ronald C.

Refrigeration

Processes

Fractionally solidifying a constituent and separating the same

62124, B01D 904

Patent

active

049541510

ABSTRACT:
An improved water purification apparatus and method includes the freeze plate of a refrigeration system disposed in contact with the surface of water to be purified for transferring heat from the water substantially only through the surface and for forming a layer of ice only near the surface that is nearly as thick as the volume of water is deep. Electrostatic field is produced to improve the rejection of impurities at the ice-water interface. System and operating parameters are described for the optimum production of purified water through recurring cycles of freezing, draining, melting, and recovering melt water in batch processing of impure water using a refrigeration system of selected heat-removing capacity.

REFERENCES:
patent: 3338065 (1967-08-01), Ashley
patent: 3630042 (1971-12-01), Petsinger

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