Field-scale transport and transformation of carboxymethylcellulose- stabilized nano zero-valent iron

Richard Johnson, James T. Nurmi, Graham S. O'Brien Johnson, Dimin Fan, Reid L. O'Brien Johnson, Zhenqing Shi, Alexandra J. Salter-Blanc, Paul Tratnyek, Gregory V. Lowry

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126 Scopus citations

Abstract

The fate of nano zerovalent iron (nZVI) during subsurface injection was examined using carboxymethylcellulose (CMC) stabilized nZVI in a very large three-dimensional physical model aquifer with detailed monitoring using multiple, complementary detection methods. A fluorescein tracer test in the aquifer plus laboratory column data suggested that the very-aggressive flow conditions necessary to achieve 2.5 m of nZVI transport could be obtained using a hydraulically constrained flow path between injection and extraction wells. However, total unoxidized nZVI was transported only about 1 m and

Original languageEnglish (US)
Pages (from-to)1573-1580
Number of pages8
JournalEnvironmental Science and Technology
Volume47
Issue number3
DOIs
Publication statusPublished - Feb 5 2013

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ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

Cite this

Johnson, R., Nurmi, J. T., O'Brien Johnson, G. S., Fan, D., O'Brien Johnson, R. L., Shi, Z., ... Lowry, G. V. (2013). Field-scale transport and transformation of carboxymethylcellulose- stabilized nano zero-valent iron. Environmental Science and Technology, 47(3), 1573-1580. https://doi.org/10.1021/es304564q