Notice of Retraction: DNAPL mass flux assessment of in-situ chemical oxidation using quasi-multidimensional experiments

Huali Chen, Eungyu Park, Yeongkyoo Kim, Kangjoo Kim

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

There has been considerable interest in the use of chemical oxidants for the in-situ destruction of dense chlorinated solvents in groundwater. But formation of MnO2 solids phase may result in permeability reductions within a source zone when using permanganate as oxidant. In this study, modified 1D columns experiments (quasi-multidimensional setting of parallel column connection) is utilized to study the mass flux and flow flux change of TCE chemical oxidation by KMnO4. Low concentration of permanganate was used as oxidant for limited time interval to mimic actual field condition. The water flux of the source area decreased during KMnO4 flushing but increased again right after the flushing is ceased. The precipitation and flocculation of MnO2 formed as a result of TCE-KMnO4 reaction reduce the permeability of source area for a limited time and a range. The mass flux of the KMnO4 flushed column was decreased during KMnO4 flushing, while rebound again after KMnO4 flushing. The mass flux of the KMnO4 flushed column was increased after short time KMnO4 flushing. This result implied that the TCE source zone can be stimulated by low concentration KMnO4 flushing.

Original languageEnglish
Title of host publication5th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2011
PublisherIEEE Computer Society
ISBN (Print)9781424450893
DOIs
StatePublished - 2011

Publication series

Name5th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2011

Keywords

  • DNAPL
  • Flow reduction
  • Mass flux
  • Mass reduction
  • TCE

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