Activated carbon from indigenous inferior woods: Part IV. Adsorption of copper, zinc and hexavalent chromium: Optimum contact time and adsorption behaviour | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

1516571

Reference Type

Journal Article

Title

Activated carbon from indigenous inferior woods: Part IV. Adsorption of copper, zinc and hexavalent chromium: Optimum contact time and adsorption behaviour

Author(s)

Usmani, TH; Ahmed, TW; Ahmed, SZ

Year

1991

Volume

Issue

Page Numbers

469-478

Language

eng

Abstract

BIOSIS COPYRIGHT: BIOL ABS. The effect of contact time, amount of carbon and general adsorption behaviour of copper, zinc and hexavalent chromium has been determined from their aqueous solutions by an activated carbon prepared from Eucalyptus (E. camaldulensis). It has been found that in each case, amount of carbon has no significant effect on the optimum contact time required for maximum metal adsorption. However, carbon dose significantly affects the amount of metal adsorbed. The adsorption of copper is found to be thrice that of zinc and chromium on the basis of initial metal ion concentration using the same amount of carbon. The results further show that when two or three metals are in the same solution, they complete for adsorption sites. However, the adsorption of zinc is hindered and reduced by 50% in the presence of Cu and Cr+6.

Keywords

MINERALS; SANITATION; Biochemical Studies-Minerals; Public Health: Environmental Health-Sewage Disposal and Sanitary Measures; Forestry and Forest Products; Myrtaceae; 18540-29-9; 7440-66-6; 7440-50-8