Electrochemical catalytic treatment of wastewater by metal ion supported on cation exchange resin.
The electrochemical oxidation of phenol in synthetic wastewater and paper mill wastewater catalyzed by metal ion supported on cation exchange resin in suspended bed electrolytic reactor with graphite electrode has been investigated. The catalyst was characterized by SEM and XPS spectra and the effects of pH, the different metal ion and NaCl on the efficiency of the electrochemical oxidation phenol process were also studied. It was found that the catalyst containing Fe(3+) had the highest electrochemical catalytic activity for the electrochemical oxidation of phenol. When the initial concentration of phenol was 200 ppm, up to 90% chemical oxygen demand (COD) removal was obtained in 10 min. When the catalyst containing Fe(3+) was used to the paper mill wastewater, it still showed high efficiency. The COD removal could get to 75% in 60 min.
Wang
Ying
Y
Institute of Energy Chemistry, College of Chemistry and Materials Science, Shaanxi Normal University, Xi'An 710062, China.
Wang
Bo
B
Ma
Hongzhu
H
D002384:Catalysis; D002411:Cation Exchange Resins / Q000737:chemistry*; D004563:Electrochemistry; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D007477:Ions / Q000737:chemistry; D007501:Iron / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010209:Paper; D019800:Phenol / Q000737:chemistry; D012965:Sodium Chloride; D013057:Spectrum Analysis; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
D002411:Cation Exchange Resins; D007220:Industrial Waste; D007477:Ions; D014874:Water Pollutants, Chemical; D019800:Phenol; D012965:Sodium Chloride; D007501:Iron