Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group iib metal
Patent
1989-02-10
1992-04-21
Rosenberg, Peter D.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group iib metal
241 99, B02C 1912
Patent
active
051065983
ABSTRACT:
A process and system for disposing of fluorescent lamps and reclaiming components therefrom which includes the removal of the lamp ends and the washing of the lamp envelopes, or crushed lamp envelopes, with wash water to remove mercury and phosphors therefrom. The wash water is then screened to remove glass fragments, and phosphors and mercury present are removed therefrom by decantation and centrifugation. The residual wash water is thereafter treated with a reducing agent to precipitate remaining mercury, and the precipitate is eliminated by decantation and filtration. Additional mercury and cadmium present in the wash water is thereafter removed by treatment with a cationic exchange resin, and the wash water is recycled along with the other water streams produced during the processing.
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Hochberg D. Peter
Kusner Mark
Rosenberg Peter D.
Weisz Louis J.
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