KMnO4 Ozidation of DNAPLPCE in Saturated Porous Media
One of the most successful techniques for the remediation of dense non aqueous phase liquids (DNAPL) in saturated soils is the in-situ chemical oxidation (ISCO). Among the different solvents forming DNAPL, perchloroethylene (PCE) is a stable, dense, hazardous contaminant, with a low water solubility. Field applications of PCEDNAPL oxidation with KMnO4 solutions is performed in difficult conditions. The aim of this paper is to analyze the PCEDNAPL degradation process in a model porous medium. For this, a laboratory-scale column has been used under experimental conditions defined precisely. All the experimental protocols have been defined and their reproducibility tested by determination of the residence time distribution. Six experiments have been carried out at two levels of PCEDNAPL porous saturation. Three KMnO4 concentrations, in a broad range, were used. The process has been followed by the characterization of the outlet solution.
perchloroethylene DNAPL ISCO KMnO4 porous media column test
Marius DRAGA Aurora FERNANDEZ Radu BARNA
Université Toulouse,Mines Albi,RAPSODEE-CNRS,Campus Jarlard,Route de Teillet,81013 Albi,France UMR5504,UMR792 Ingénierie des Systèmes Biologiques et des Procédés,CNRS,INRA,INSA,F-31400 Toulouse,F
国际会议
2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)
上海
英文
2143-2150
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）