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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:   (3687 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]   (692 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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