Removal of heavy metals from waste water

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

210720, 210725, 210727, 210912, 210913, 210914, C02F 154

Patent

active

047311878

ABSTRACT:
A heavy metal can be removed from waste water, in which the metal is contained as ions, by adding to the waste water a metal scavenger together with at least one of sodium monosulfide, sodium polysulfides and sodium hydrogensulfide to form a metal ion containing floc. The resulting floc is then removed from the waste water by filtration. The metal scavenger contains at least one carbodithio group and/or at least one carbodithioate salt group as N-substituents per molecule.

REFERENCES:
patent: 3981965 (1976-09-01), Ganey et al.
patent: 4530765 (1985-07-01), Sabherwal
Kim, B. M. "Treatment of Metal Containing Wastewater by Sulfide Precipitation" General Electric Company, AIChE 73rd Annual Meeting, Chicago, Ill., Nov. 1980, pp. 1-12.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Removal of heavy metals from 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 Removal of heavy metals from waste water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of heavy metals from waste water will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1925402

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.