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Paper Information

Journal:   JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY   FALL 2005 , Volume - , Number 26; Page(s) 78 To 97.
 
Paper: 

INVESTIGATION OF BASIC YELLOW 2 REMOVAL FROM CONTAMINATED WATER BY ELECTROCOAGULATION METHOD IN THE BATCH REACTOR

 
 
Author(s):  KASHEFI ALASL M., KHOSRAVI MORTEZA, MARANDI R., SEYEDI K., KHATAEI A.R.
 
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Abstract: 
Millions of liters of wastewater are produced by textile industry daily. Each liter of such wastewater contains more than 20 g of dyes 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 decolonization 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; 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 20-100 ppm from the dye solution was more than 90% when current density, time of electrolysis, inter-electrode distance, electrode Showed, and electrolyte concentration were 211.6 A/m2, about 11 min, 4 cm, 37.5 cm2, and 10 g/l, respectively.
 
Keyword(s): WASTEWATER TREATMENT, ELECTROCOAGULATION, DECOLORIZATION, AND BASIC YELLOW 2
 
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