REMOVAL OF COPPER PHTHALOCYANINE DYE FROM AQUEOUS SOLUTIONS
Abstract
Removal of anionic copper phthalocyanine dye from aqueous solutions was investigated by the adsorption, ion exchange and oxidative treatment methods. The sorption of metal complex dye by basic activated carbon Norit RB 0.8CC was found to be dependent on various factors such as initial dye solution concentration, pH, contact time and the amount of sorbent. The experimental data showed that the sorption rate and removal efficiency was higher from acidic solutions.
The sorption behaviour of copper phthalocyanine complex dye from aqueous solution onto the Purolite A845 weak-base anion exchanger was investigated under static and dynamic conditions. During the sorption process, the parameters of treated solution, such as pH values, electric conductivity and absorbance, were determined. The sorption capacity and affinity of anion exchanger for the chromium complex dye was found to be relatively higher than those for the copper phthalocyanine dye.
The removal of copper phthalocyanine dye was been carried out using the oxidation procedure. Oxidative treatment by potassium permanganate was accomplished by ion exchange. Chelating ion exchange resin (Purolite S930) selective towards copper(II) ions was used for the retention of metal ions from the treated solution. The removal efficiency of the released copper(II) ions was highest at pH > 4.
