Recovery of silver from waste silver chloride for the MEO system | Zendy

P. C. Hsu | Zendy; Z. Chiba | Zendy; B.J. Schumacher | Zendy; L.C. Murguia | Zendy; M.G. Adamson | Zendy

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Recovery of silver from waste silver chloride for the MEO system

Author(s) -

P. C. Hsu,

Z. Chiba,

B.J. Schumacher,

L.C. Murguia,

M.G. Adamson

Publication year - 1996

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/250506

Subject(s) - oxidizing agent , reagent , chlorine , hydrogen peroxide , chemistry , silver nitrate , inorganic chemistry , chloride , electrochemistry , organic chemistry , electrode

Mediated Electrochemical Oxidation (MEO) treats mixed wastes by oxidizing the organic components into CO2 and water via chemically active metallic ions (mediators). For chlorinated organic wastes, the chlorine will bind with mediator (silver) in the solution to form insoluble AgCl, which is then separated by centrifugation. An efficient process has been developed in the lab-scale to convert the AgCl into the nitrate, with a conversion efficiency >90%. The process is nontoxic and economical, requiring only the inexpensive reagents NaOH and hydrogen peroxide. Secondary waste generation is small

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