Method for arsenic removal from wastewater

Details Method for arsenic removal from wastewater Method for arsenic removal from wastewater

C - Chemistry, Metallurgy

02

F

C02F 1/463 (2006.01) C02F 1/72 (2006.01) C02F 9/00 (2006.01)

Patent

CA 2089348

METHOD FOR ARSENIC REMOVAL FROM WASTEWATER Abstract of the Disclosure A process and apparatus for removing arsenic from aqueous media is described. The process in general utilizes ferrous ion provided by an electrochemical cell which is added to the aqueous media in a first step, followed by mild oxidizing conditions generated by the addition of hydrogen peroxide. The ferrous ion then forms an hydroxide which is oxidized to an oxyferric oxide and the arsenic present at a +3 oxidation state is oxidized to a +5 state whereupon the oxyacid complexes with the oxyferric oxide. A precipitate then is formed which consists of ferric arsenate, and the hydroxy ferric oxide - oxyacid complex. Heavy metals may also be removed by the process.

Affiliated with

Also associated with

Rating

Method for arsenic removal from wastewater 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 for arsenic removal from wastewater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for arsenic removal from wastewater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1513056