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.

[1]  S. Adimurthy,et al.  Laboratory studies of electrochemical treatment of industrial azo dye effluent. , 2005, Environmental science & technology.

[2]  S. Palmas,et al.  Electrochemical Treatment of Landfill Leachate: Oxidation at Ti/PbO2 and Ti/SnO2 Anodes , 1998 .

[3]  F. Walsh,et al.  Studies of three-dimensional electrodes in the FMO1-LC laboratory electrolyser , 1994 .

[4]  P. Cañizares,et al.  Electrochemical Oxidation of Aqueous Carboxylic Acid Wastes Using Diamond Thin-Film Electrodes , 2003 .

[5]  Giacomo Cerisola,et al.  Electrochemical oxidation as a final treatment of synthetic tannery wastewater. , 2004, Environmental science & technology.

[6]  Juu-En Chang,et al.  Indirect oxidation effect in electrochemical oxidation treatment of landfill leachate , 1995 .

[7]  Kwang-Wook Kim,et al.  A study on performance improvement of Ir oxide-coated titanium electrode for organic destruction , 2002 .

[8]  J. Jia,et al.  Dual electrodes oxidation of dye wastewater with gas diffusion cathode. , 2005, Environmental science & technology.

[9]  V. Fontanier,et al.  Study of catalyzed ozonation for advanced treatment of pulp and paper mill effluents. , 2006, Water research.

[10]  A. Battisti,et al.  Service life of Ti/SnO2–Sb2O5 anodes , 1997 .

[11]  S. Wong,et al.  Treatment of pulp and paper mill wastewater by polyacrylamide (PAM) in polymer induced flocculation. , 2006, Journal of hazardous materials.

[12]  G Thompson,et al.  The treatment of pulp and paper mill effluent: a review. , 2001, Bioresource technology.

[13]  Giacomo Cerisola,et al.  Electrochemical treatment of wastewater containing polyaromatic organic pollutants , 2000 .

[14]  J. Kim,et al.  Effect of contact resistance between particles on the current distribution in a packed bed electrode , 1997 .

[15]  O. Zerbinati,et al.  Oxidative and energetic efficiency of different electrochemical oxidation processes for chloroanilines abatement in aqueous medium. , 2006, Chemosphere.

[16]  Alfons Vogelpohl,et al.  Landfill leachate treatment by a photoassisted fenton reaction , 1997 .

[17]  A. M. Amat,et al.  Solar photo-catalysis to remove paper mill wastewater pollutants , 2005 .

[18]  P. J. Reynolds,et al.  Treatment of landfill leachate by methanogenic and sulphate-reducing digestion , 1996 .