Effects of Anolyte Concentration on Removal of Fluorine from Contaminated Soil by Electrokinetic Treatment

Abstract:

A series of electrokinetic experiments were conducted on fluorine-contaminated soil with different anolyte (NaOH) concentrations in a self-made electrolyzer to investigate the effects of anolyte concentration on removal of fluorine. Experimental results showed that anolyte concentration (0.1mol L^-1) was more suitable of the six anolyte concentration tested, in contrast to the removal efficiency of fluorine and the cost of the high concentration of anolyte. On this anolyte concentration that 57.75% fluorine could be removed from contaminated soil within 10 days under the applied voltage (1.0 V cm^-1). The results also indicated that electromigration was a dominant transport mechanism responsible for the removal of fluorine from contaminated soil than electroosmosis.

• Periodical: Advanced Materials Research (Volumes 518-523)
• Pages: 2500-2504
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.518-523.2500
• Online since: May 2012
• Authors: Ming Zhou, Shu Fa Zhu, Ya Na Liu
• Keywords: Anolyte Concentration, Electromigration, Electroosmosis, Fluorine

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