Recycling of Industrial Solid Wastes: 'Waste' Fe III /Cr III Hydroxide as an Adsorbent for the Removal of Toxic Ions and Dyes from Wastewater

Abstract

'Waste' Fe^III/Cr^III hydroxide, generated from the treatment of Cr^VI in fertiliser industry effluent, was used as an adsorbent for the removal of toxic ions such as AsIII, Hg^II, Cr^III and PO₄^3–, and dyes such as Rhodamine-B and Procion Orange M2R, from aqueous solutions. The removal was efficient except for Procion Orange.

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