Degradation of Microcystins by Electro-Fenton Reaction Using an Activated Carbon Fiber Cathode

Abstract

Abstract: The degradation of Microcystins(MC-RR, MC-LR) via electro-Fenton reaction using the activated carbon fiber(ACF) felt cathode with a large surface area was experimentally investigated. The effect of applied current, initial pH values of solution and Fe²⁺ ion concentration were discussed in detail. The results show that 75% of MC-RR and 94% MC-LR were eliminated after 60 min electrolysis under the operation conditions of 6.6 mA/cm² current density, 1.0 mmol/L Fe²⁺ at pH=3. The results indicate that H₂O₂ could be effectively electrogenerated from O₂ reduction on the ACF felt cathode and microcystins could be rapidly eliminated.

Key words: Activated carbon fiber cathode, Electro-Fenton reaction, Degradation, Microcystins

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WANG Ai-Min, QU Jiu-Hui, SHI Hong-Xing, RU Jia, LIU Hui-Juan, LEI Peng-Ju. Degradation of Microcystins by Electro-Fenton Reaction Using an Activated Carbon Fiber Cathode[J]. Chem. J. Chinese Universities, 2005, 26(9): 1665.

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Degradation of Microcystins by Electro-Fenton Reaction Using an Activated Carbon Fiber Cathode

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