Removal of Cu (II) and Ni (II) from Aqueous Solution Using Tectona Grandis Bark Substrate

B. D. Gharde

Department of Chemistry, Science College, Pauni, Bhandara (India).

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