Volume 4, Number 4 (2 2012)                   ijhe 2012, 4(4): 411-418 | Back to browse issues page

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Kheradpisheh Z, Movahedian Atar H, Salehii najafabadi M. Survey of Efficiency of Electrochemical Treatment in Cyanid Removal from Industrial Wastewatersrs. ijhe. 2012; 4 (4) :411-418
URL: http://ijhe.tums.ac.ir/article-1-47-en.html

Abstract:   (4613 Views)

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.

Full-Text [PDF 664 kb]   (1678 Downloads)    
Type of Study: Research | Subject: General
Received: 2011/04/18 | Accepted: 2011/07/11 | Published: 2013/07/9

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