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:: Volume 1, Issue 3 (6-2014) ::
jehe 2014, 1(3): 180-191 Back to browse issues page
Performance Evaluation of Electro-Fenton Process (EFP) in Removal of Hexavalent Chromium in the Presence of Cyanide, as an Interfering Agent, from Synthetic Wastewaters
Ali Reza Rahmani , Jamal Mehralipour , Amir Shabanlo , Mostafa Jahanbakhsh , Sepideh Hosseini , Elham Hosseini
B.S. Student of Environmental Health Engineering, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran. Research Committee (SRC)
Abstract:   (3439 Views)

Background: Chromium (VI) is a hazardous pollutant that enters into the environment through different industrial wastewater. Therefore, Choice a suitable method for removal of the pollutant before discharging into the environment is necessary. The aim of this work was performance evaluation of Electro-Fenton process (EFP) in removal of hexavalent chromium in the presence of cyanide, as an interfering agent, from synthetic wastewaters.

Methods: In this experimental study, a reactor with 1 L useful volume and 4 electrodes made ​​of iron was used. pH, initial concentration of  chromium (VI), voltage, hydrogen peroxide and cyanide concentration, as an interfering agent, were investigated in order to determine the process efficiency.

Results: Results reveals that the considered parameters were affected on the efficiency of the process. In optimum condition, pH=3 and voltage=20 V, initial concentration=100 mg/L, concentration of hydrogen peroxide=50 mL/L the maximum efficiency was reached up to 97%. Cyanide Presence, in the same condition, reduced the efficiency under 50 % and also, the efficiency was decreased by changing the parameters level from optimum condition.

Conclusion: Results indicate the proper efficiency of chromium (VI) by EFP process; however presence of other pollutants such as cyanide can cause efficiency decrease which must be considered in the process application.

Keywords: Electro Fenton, Chromium, Cyanide, Interfering agent, Wastewater.
Full-Text [PDF 380 kb]   (636 Downloads)    
Type of Study: Research | Subject: General
Received: 2015/06/17 | Accepted: 2015/06/17 | Published: 2015/06/17
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Rahmani A R, Mehralipour J, Shabanlo A, Jahanbakhsh M, Hosseini S, Hosseini E. Performance Evaluation of Electro-Fenton Process (EFP) in Removal of Hexavalent Chromium in the Presence of Cyanide, as an Interfering Agent, from Synthetic Wastewaters. jehe. 2014; 1 (3) :180-191
URL: http://jehe.abzums.ac.ir/article-1-75-en.html


Volume 1, Issue 3 (6-2014) Back to browse issues page
مجله مهندسی بهداشت محیط Journal of Environmental Health Enginering
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