مطالعه حذف ماده رنگزاي زرد قليايي 2 موجود در آب هاي آلوده به روش انعقاد الكتريكي در يك راكتور غيرپيوسته

Investigation of basic yellow 2 removal from contaminated water by electrocoagulation method in the batch reactor

Millions of liters of wastewater are produced by textile industry daily. Each liter of such wastewater contains more than 20 g of dves that cause environmental problems. One of the efficient methods for removing these dyes from wastewater is electrocoagulation. Basic yellow 2 is a dye that has many uses in textile industry and this study was performed to investigate the variables that influence the efficiency of decolorization of a solution containing a dye (Basic yellow 2) by electrocoagulation. Current density, time of electrolysis, inter-electrode distance, electrode surface, electrolyte concentration, and the initial concentration of the dye were the variables that most influenced color removal. A simple electrochemical cell was prepared with an anode and cathode,ʹ then the effect of each variable was studied separately using synthetic wastewater in a batch mode. The results showed that the color removal percent in the range of 20-100ppm from the dye solution was more than 90% when current density, time of electrolysis, inter-electrode distance, electrode Surface, and electrolyte concentration were 211.6 A/m^2, about 1I min, 4 cm, 37.5 cm^2, and10 g/l, respectively.