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Showing 1 results for Electroplating Wastewater

Z Kheradpisheh, H Movahedian Atar, M Salehii Najafabadi,
Volume 4, Issue 4 (3-2012)
Abstract

Background and Objectives: Cyanide is a highly toxic compound which is Normally found in numerous industries, such as electroplating wastewater. Release of this compounds in to the Enviroment has a lot health hazards.The Purpose of this study is to Determine the efficiency of electrochemical oxidation method for Cyanide removal from industrial wastewaters

Materials and Methods: This study conducted in a pilot system experimentally .In this study the effect of pH, voltage and operation time on total cyanide removal from industrial wastewaters by Electrochemical Oxidation was investigated by applying a Stainless Steel as a Anode and copper as a cathode .

Results: The average percentage removal of cyanide was about 88 with SD=2.43. The optimal condition obtained at voltage of 9V and pH=13 and The operation time of 90 minutes.The volume of sludge which formed in this condition was  about 20 percent of a one liter pilot reactor.

Conclusion: the results statistically confirmed the significant relationship between

input and cyanide concentration removal efficiency (p< 0.05), and confirmed  The this confirmed The  relation between cyanide & cyanat oxidation and hydroxyl ions consumption 1:2.( L.Szpyruowicz). therefore the best pH is 12.5-13.5 by Considering the need  of alkaline environment to remove cyanide.


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