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Electrochemical treatment of sunflower oil refinery wastewater and optimization of the parameters using response surface methodology.

08:00 EDT 17th March 2020 | BioPortfolio

Summary of "Electrochemical treatment of sunflower oil refinery wastewater and optimization of the parameters using response surface methodology."

Combined electrocoagulation (EC) + electrooxidation (EO) process was compared with electrochemical peroxidation (ECP) treatment process to treat sunflower oil refinery wastewater. The effect of applied current density, pH/HO dosage, and operation time in the removal of chemical oxygen demand (COD), soluble COD, total organic carbon, and dissolved organic carbon (DOC) were studied using Box Behnken Design. In EC process, decrease in organic concentration was observed as the time and current density increased. The optimized conditions for EC process were achieved at pH 6.07 when a current density of 5.69 mA cm was applied for 18 min. The EO removed about 90% of DOC at an optimized pH of 5.27 and current density of 11.56 mA cm when operated for 400 min. The combined EC + EO process was successful compare to ECP process in removing between 90 and 95% of organic pollutant from the sunflower oil refinery wastewater. The energy consumption was calculated to compare between the process efficiency of EC + EO and ECP and found that EC + EO was more efficient process. The reaction rate followed a first order kinetics validated with a high R value (0.96).

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This article was published in the following journal.

Name: Chemosphere
ISSN: 1879-1298
Pages: 126511

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