Sorption of chromium(III) and chromium(VI) on lead sulfide |
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Authors: | S Musić |
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Institution: | (1) Institute Rudjer Bokovi, 41001 Zagreb, Yugoslavia |
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Abstract: | The sorption of chromium(III) and chromium(VI) on lead sulfide has been investigated in dependence on pH, time of sorption and the concentrations of sorbate and sorbent. The mechanisms of the sorption of Cr3+ and CrO
4
2–
traces on lead sulfide are discussed; a difference between CrO
4
2–
sorption on PbS and -Fe2O3 has been found. Sulfates and molybdates affect the removal of chromates from aqueous solutions. Lead sulfide carrier prepared in this work was also used for the preconcentration of chromium(III) and chromium(VI) from tap water. |
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Keywords: | |
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