Method of clarifying industrial waste water

Details Method of clarifying industrial waste water Method of clarifying industrial waste water

1976-08-27

1978-08-22

Hart, Charles N.

Liquid purification or separation

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

Responsive to fluid flow

210 44, 210 53, B01D 1704

Patent

active

041087682

ABSTRACT:
An industrial waste water containing hexane soluble impurities is adjusted in pH to a value of at least 11.6 and thereafter calcium chloride is added to that waste water in an amount of at least 1,700 parts per million, based on the total weight of industrial waste water. A metal hydroxide floc results which includes a substantial portion of the hexane soluble impurities attached to or incorporated in the floc. The floc can be agglomerated with conventional coagulants and then separated from the clarified waste water. The calcium chloride will react at this very high pH to effectively flocculate a substantial portion of the oils and greases (hexane solubles) in addition to a substantial portion of the contaminating metal ions in the industrial waste water.

REFERENCES:
patent: 3347786 (1967-10-01), Baer et al.
patent: 3677940 (1972-07-01), Fujimoto et al.
patent: 3769207 (1973-10-01), Baer
patent: 3816276 (1974-06-01), Ichiki et al.
patent: 3965001 (1976-06-01), Irani et al.

Affiliated with

Also associated with

Rating

Method of clarifying industrial waste water does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of clarifying industrial waste water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of clarifying industrial waste water will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1556625