A process for removing barium from water

Details A process for removing barium from water A process for removing barium from water

C - Chemistry, Metallurgy

02

F

C02F 1/52 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2742040

A method for reducing barium concentration in waste streams. Hydrous manganese oxide (HMO) is formed in solution/slurry and mixed with water containing barium such that the hydrous manganese oxide exhibits a negative charge at a desired pH. Barium from the water is adsorbed onto the negatively charged HMO surface. The HMO with adsorbed barium is separated from the water, producing treated effluent having a reduced barium concentration.

Linvention concerne un procédé de réduction de la concentration en baryum dans des courants de déchets. De loxyde de manganèse hydraté (HMO) est formé en solution/pâte et est mélangé avec leau qui contient du baryum de manière à ce que loxyde de manganèse hydraté présente une charge négative à un pH souhaité. Le baryum de leau est adsorbé sur la surface de lHMO chargé négativement. LHMO contenant le baryum adsorbé est séparé de leau, produisant ainsi un effluent traité qui a une concentration en baryum réduite.

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