PERFORMANCE EVALUATION OF ELECTRO-FENTON PROCESS FOR GLYPHOSATE HERBICIDE MINERALIZATION

Abstract

   The removal of Glyphosate has been investigated by electro-Fenton process which isbased on the continuous production of ●OH radicals by reaction between Fe2+catalyst and H2O2 electrochemical generated on cathode. The carbon felt (60 cm2)and Pt gauze (45 cm2) were used as cathode and anode, successively. At theconditions: [Fe2+] = 0,1 mM; pH = 3; [Na2SO4] = 0,05M ; I = 0,5A and thecompressed air was bubbled through the solutions, the experiment results showed that87,1% Glyphosate was removed after 60 min by the electro-fenton process, amongthem 84,4% Glyphosate was mineralized to CO2, H2O and inorganic acid. It meansthat some organic intermediates were produced during electro-fenton, but itsconcentration was low and they were more readily degradable than Glyphosate.