ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

A Ti/IrO₂–RuO₂–TiO₂ anode in the Fered-Fenton process: preparation and performance in the removal of chemical oxygen demand from biochemically treated leachate

Xinxin Bai, Jun Zhang, Xiaogang Wu, Qian Li, Wei Xie, Daobin Zhang, and Hui Zhang

Wuhan University, Wuhan, China

E-mail: wxgglobes@163.com

Abstract: The preparation and performance of a Ti/IrO₂–RuO₂–TiO₂ anode in the removal of chemical oxygen demand (COD) from biochemically treated landfill leachate by the Fered-Fenton process were investigated. The Taguchi design was applied to obtain the optimal conditions for preparation of the Ti/IrO₂–RuO₂–TiO₂ anode by thermal decomposition method. The optimal preparation conditions were as follows: Ir and Ru molar contents of 20% and 30%, respectively, a calcine temperature of 500 °C and a precursor solvent of HCl + butyl alcohol. After a 50-min Fered-Fenton treatment, 77.9% of the COD was removed from biochemically treated leachate using the electrode prepared under the optimal conditions derived from the Taguchi method.

Keywords: Fered-Fenton ; Leachate ; DSA ; Ti/IrO₂–RuO₂–TiO₂ ; Taguchi method 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-018-0665-6

Chemical Papers 73 (5) 1145–1152 (2019)