Water purification system

Details Water purification system Water purification system

1979-06-19

1981-06-30

Spear, Jr., Frank A.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210138, 210639, 210651, 2101953, 2104332, B01D 1300, B01D 3100

Patent

active

042761760

ABSTRACT:
A low pressure, high flux water purification system. In a continuous loop recirculation system metal hydroxides are employed to bind impurities in wastewater into particles of a size greater than ten angstroms which are then separated from the water by means of an ultrafiltration membrane. A large metal hydroxide/impurity ratio is maintained thereby permitting a purified water flux of over 30 gfd using filter tubes of diameter greater than 100 mils and length greater than 6 inches under a wastewater pressure as low as 9 psig. The filter tubes are grouped in bundles, each bundle within its own water collecting box, so that system down time is minimized and purification standards may be maintained in the event of a partial failure of the system.

REFERENCES:
patent: 3648754 (1972-03-01), Sephton
patent: 3677405 (1972-07-01), Keith, Jr.
patent: 3839206 (1974-10-01), Welch
patent: 3856569 (1974-12-01), Strong
patent: 3880755 (1975-04-01), Thomas et al.
patent: 4014787 (1977-03-01), Shorr
patent: 4073730 (1978-02-01), Shorr et al.

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