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Paper
Title

Feasibility of electrochemical oxidation process for treatment of saline wastewater

Year: 1394
COI: JR_EHEM-2-3_004
Language: EnglishView: 302
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Authors

Kavoos Dindarloo - Assistant Professor, Environmental Health Engineering Research Center, Instructor Department of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
Hamza Ali Jamali - Assistant Professor, Department of Environmental Health Engineering, Qazvin University of Medical Sciences, Qazvin, Iran
Parvin Lakbala - Assistant Professor, Environmental Health Engineering Research Center, Instructor Department of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran
Hamid Mahmoodi - MSc, Environmental Health Engineering Research Center, Instructor Department of Health, Hormozgan University of Medical Sciences, Bandar Abbas, Iran

Abstract:

Background: High concentration of salt makes biological treatment impossible due to bacterial plasmolysis. The present research studies the process of electrochemical oxidation efficiency and optimal levels as important factors affecting pH, salt concentration, reaction time and applied voltage.Methods: The sample included graphite electrodes with specifications of 2.5 cm diameter and 15 cm height using a reactor with an optimum capacity of 1 L. Sixty samples were obtained with the aid of the experiments carried out in triplicates for each factor at 5 different levels. The entire experiments were performed based on standard methods for water and waste water treatments.Results: Analysis of variance carried out on effect of pH, salt concentration, reaction time and flow intensity in elimination of chemical oxygen demand (COD) showed that they are significant factors affecting this process and reduce COD with a coefficient interval of 95% and test power of 80%. Scheffe test showed that at optimal level, a reaction time of 1 hour, 10 g/L concentration, pH = 9 and 15 V electrical potential difference were obtained.Conclusion: Waste waters containing salt may contribute to the electro-oxidation process due to its cations and anions. Therefore, the process of electrochemical oxidation with graphite electrodes could be a proper strategy for the treatment of saline wastewater where biological treatment is not possible.

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Dindarloo, Kavoos and Jamali, Hamza Ali and Lakbala, Parvin and Mahmoodi, Hamid,1394,Feasibility of electrochemical oxidation process for treatment of saline wastewater,https://civilica.com/doc/488022

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Type of center: دانشگاه دولتی
Paper count: 3,879
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