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1231726 
Journal Article 
Electrochemical treatment of tannery wastewater using DSA electrodes 
Costa, CR; Botta, CM; Espindola, EL; Olivi, P 
2008 
Yes 
Journal of Hazardous Materials
ISSN: 0304-3894
EISSN: 1873-3336 
153 
1-2 
616-627 
English 
17931769 
WOS:000255417500076 
In this work we studied the electrochemical treatment of a tannery wastewater using dimensionally stable anodes (DSA) containing tin, iridium, ruthenium, and titanium. The electrodes were prepared by thermal decomposition of the polymeric precursors. The electrolyses were performed under galvanostatic conditions, at room temperature. Effects of the oxide composition, current density, and effluent conductivity were investigated, and the current efficiency was calculated as a function of the time for the performed electrolyses. Results showed that all the studied electrodes led to a decrease in the content of both total phenolic compounds and total organic carbon (TOC), as well as lower absorbance in the UV-vis region. Toxicity tests using Daphnia similis demonstrated that the electrochemical treatment reduced the wastewater toxicity. The use of DSA type electrodes in the electrochemical treatment of tannery wastewater proved to be useful since it can promote a decrease in total phenolic compounds, TOC, absorbance, and toxicity. 
dimensionally stable anodes; electrochemical treatment; phenolic compounds; tannery wastewater; toxicity 
IRIS
• Chromium VI
     Considered
          Excluded
               Other Not Pertinent