Experimental study on Solvent Extraction of Crystal Violet dye

Abstract

Many industries uses dyes extensively in different operations such as textile, paper, plastic, dyeing,
pharmaceutical, cosmetics, leather tanning etc., for coloring their final products. Some dyes are toxic, mutagenic and
carcinogenic. Thus the removal of dyes from the waste water is necessary before it gets mixed with the non-polluted
water. Various methods have been used to remove dyes from aqueous solutions. Liquid-liquid extraction (LLE) is
significant potential to remove the dyes from wastewater. In the present study,we selected cationic dye namely methyl
violet for liquid-liquid extraction using Tri butyl phosphate (TBP) as an extractant and 1-Dodecanol as a diluent. The
influencing parameters such as effect of extractant concentration, dye concentration and pH on extraction performance
has been studied. It is seen that as the pH increases extraction of dye increases, Dye extraction increases with decrease
in extractant concentration and extraction increases with increases in dye concentration.
The influence of the parameters such as effect of extractant concentration, diluents, dye concentration and pH on
extraction performance will be studied.