Abstract

B. D. Gharde

Tectona grandis bark substrate is found to have good sorption capacity for recovery of Cu+2 an Ni+2. Tectona grandis bark substrate prepared from 0.25N H2SO4 and 39%HCHO and has been used for the adsorption Cu+2 and Ni+2 studies indicated that sorption of Cu+2 and Ni+2 increases in pH and contact time of 90 minutes is found to be optimum. The effect of metal ions shows that Tectona grandis bark substrate can remove Cu+2 and Ni+2 at lower concentration. The bark substrate also indicated that adsorption increases with increase in substrate concentration. The presence of Na+, Ca+2 and Mg+2 interfered with adsorption of Cu+2 and Ni+2. It is also reported that the substrate from the solution removes more than 60% of the metal ions instaneously by using packed column of the bark substrate.

Cu+2 and Ni+2 metal ions; Tectona grandis bark substrate; Adsorption capacity U.V. Spectrophotometer

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