Suppression of water pollution caused by solid wastes containing chromium compounds

A method of treating solid waste material containing minor amounts of water soluble chromium compounds with a reductant, particularly sulfide ions, to convert the soluble chromium to an insoluble state, and produce a solid waste from which substantially no chromium can be leached by water, as by exp...

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Bibliographische Detailangaben
Hauptverfasser: WAMSER, CHRISTIAN A, GANCY, ALAN B
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method of treating solid waste material containing minor amounts of water soluble chromium compounds with a reductant, particularly sulfide ions, to convert the soluble chromium to an insoluble state, and produce a solid waste from which substantially no chromium can be leached by water, as by exposure to rain.