Decreasing the pollution load of Acid Black 29 in textile wastewater by electrocoagulation with the use of aluminium and steel electrodes
Subject Areas : The Application of Chemistry in Environment
Keywords: Efficiency, electrocoagulation, textile wastewater, Decolorization, anode, Acid Black 24, cathode,
Abstract :
Million liters of color wastewater is produced by industries daily that are causing environmental problems. These colors have mutation potential and carcinogenic in person and produce poisonous side product in environment. These dyes are mostly macromolecules that are not easily broken due to high water solubility and non biodegradable. This study was performed to investigate the efficiency of electrocoagulation (EC) in decreasing the level of Acid Black24 color from textile industrial wastewater and determine optimum operation conditions and the efficiency of different electrode materials (Al/steel310) to remove the mentioned material from aqueous solution by applying a voltage source(DC).Initially, a simple electrochemical cell was prepared with an anode and a cathode. Then , the effect of each variable was studied separately using aqueous Acid Black24 in a batch mode. For a solution in natural PH ,and current density about 50 Am-2 ,interelectrode distance of 1 cm and stirring rate 200 rpm ,almost 94% of Acid Black24 was removed. With these results we can say that this dyes, for some extend, is one of the vigorous ways with appropriate output to remove synthetic colors.
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