Waste water treatment process

Details Waste water treatment process Waste water treatment process

1975-05-19

1977-01-04

Spear, Jr., Frank A.

Liquid purification or separation

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

Responsive to fluid flow

210 73W, B01D 1702

Patent

active

040011143

ABSTRACT:
Waste water feed contaminated with fatty residue and a recycle of froth from a later stage of the process are acidulated; the resulting less dense oil phase is separated from the remaining denser aqueous phase; the pH of the latter then is raised to at least about 6 and it subjected to a dissolved air flotation operation for producing (a) a froth for recycle into admixture with said waste water feed, and (b) a treated water underflow substantially free of initial fatty residue content.

REFERENCES:
patent: 1807833 (1931-06-01), Eddy
patent: 1947709 (1934-02-01), Garrison et al.
patent: 2217143 (1940-10-01), Stevenson
patent: 3192155 (1965-06-01), Bready et al.
patent: 3259567 (1966-07-01), Dunning et al.
patent: 3419493 (1968-12-01), Pangle, Jr.
patent: 3707464 (1972-12-01), Burns et al.

Affiliated with

Also associated with

Rating

Waste water treatment process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Waste water treatment process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Waste water treatment process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-251712