Process for the purification of water

Details Process for the purification of water Process for the purification of water

1977-06-15

1981-06-23

Wyse, Thomas G.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210694, 210711, 210787, 2105121, C02F 128

Patent

active

042749689

ABSTRACT:
Disclosed is a process for the treatment of water so as to produce water of high purity, such as potable water. The process also entails the treatment of water which may have received prior water treatment, and comprises adding an effective amount of chemical flocculant to the feed water and subjecting said water to flocculation; passing the flocculated water to a clarifier where suspended solids are separated from the partially purified water; adding about 1 to about 100 parts powdered activated carbon per million parts of water from the clarifier; contacting the water with said carbon in a reaction zone so as to achieve substantial reduction of contaminants in the water; separating the activated carbon from the purified water; and recycling a portion of the separated activated carbon to the clarifier effluent.

REFERENCES:
patent: 3404778 (1968-10-01), Woodruff et al.
patent: 3876536 (1975-04-01), Pradt et al.
patent: 3904518 (1975-09-01), Hutton et al.
patent: 4076615 (1978-02-01), Olesen et al.

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