Optimasi Ph dan Hidrogen Peroksida pada Proses Elektrodekolorisasi Rodamin B

Abstract

Research on electrodecolorization of dye rhodamine B has done. The dye rodamin B is one kind of various components in the liquid waste textiles, especially in the dyeing process, Use of the dye rodamin B reaches approximately 60% to 70% and 10% to 15 % lost in the dyeing process. The aim of this study is to provide an alternative method for dealing with liquid wastewater. The method in this study is experimentally to test the qualitative and quantitative test. This study used an electrolysis process in which iron is used as a carbon anode and cathode. Iron anode electrolysis cells will form a metal hydroxide that acts as a coagulant so that the dye can be exempt from a mixture of origin. The first step in this research was to determine the optimum time and the optimum voltage. Conditions that shew the greatest percentage decolorization used in this study. Voltage used is 12V while the optimum use of time is 5 minutes. The results showed that at pH 3, 4, and 6 percentage decolorization relatively close to 100% than at pH 9 and 10. This indicates that the maximum decolorization percentage acidic conditions, because the atmosphere in the case of acid neutralization negative charge of hydroxide ions by hydrogen ions so as to assist the binding molecule H2O2 rodamin B. In addition to the concentration of 300 mg / L occur decolorization greater than without the addition of H2O2