Electrochemical treatment of paper mill wastewater using three-dimensional electrodes with Ti/Co/SnO2-Sb2O5 anode.
The properties of the interlayer and outer layer of Ti/Co/SnO2-Sb2O5 electrode were studied, and the electrochemical behavior was examined as well. As a result of unsatisfactory treatment using Ti/Co/SnO2-Sb2O5 electrode, electrochemical disposal of paper mill wastewater employing three-dimensional electrodes, combining active carbon granules serving as packed bed particle electrodes, with Ti/Co/SnO2-Sb2O5 anode, was performed. The outcome demonstrates that efficient degradation was achieved. The residual dimensionless chemical oxygen demand (COD) concentration reached 0.137, and color removal 75% applying 167 mA cm(-2) current density at pH 11 and 15 g l(-1) NaCl. The instant current efficiency, energy cost, electrochemical oxidation index (EOI) and kinetic constant of the reaction were calculated. At the same time, the influence of pH and current density on COD abatement and decolorization was also investigated, respectively.
Wang
Bo
B
Institute of Energy-Chemistry, College of Chemistry and Materials Science, Shaanxi Normal University, Xi'An 710062, China. wangbo@snnu.edu.cn
Kong
Wuping
W
Ma
Hongzhu
H
D000965:Antimony / Q000737:chemistry; D002244:Carbon / Q000737:chemistry; D003035:Cobalt / Q000737:chemistry; D003116:Color; D004563:Electrochemistry; D004566:Electrodes; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste; D010087:Oxides / Q000737:chemistry; D010209:Paper; D012965:Sodium Chloride / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry; D014025:Titanium / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D007220:Industrial Waste; D010087:Oxides; D017971:Tin Compounds; D014874:Water Pollutants, Chemical; C091696:antimony oxide; D003035:Cobalt; D012965:Sodium Chloride; D002244:Carbon; D000965:Antimony; D014025:Titanium; C045358:stannic oxide