Sustainability of Long-Term Abiotic Attenuation of Chlorinated Ethenes

Abstract

mechanisms that may contribute to the attenuation of chlorinated ethene plumes. To this end, we measured the reduction of chlorinated ethenes by a series of chemically and microbially generated reductants under a range of natural conditions. During the project, we collected, synthesized, and characterized a variety of reductants and measured the extent and rate of PCE, TCE and cDCE reduction in batch reactors. The reductants included, (i) Fe(II) sorbed on Fe oxides, (ii) minerals containing Fe(II), such as iron sulfides (e.g., mackinawite) and green rusts, (iii) precipitates and supernatant collected from dissimilatory iron reducing (DIR) cultures of Shewanella species and an sulfate reducing bacterial (SRB) culture of Desulfovibrio desulfuricans, and (iii) sorbed and reduced natural organic matter (NOM) and NOM model compounds.

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Document Details

Document Type
Technical Report
Publication Date
Sep 28, 2007
Accession Number
ADA476323

Entities

People

  • Collin Just
  • Edward J O'Loughlin
  • Gene F. Parkin
  • Hashim Al-hosney
  • Michelle M Scherer
  • Phil Larese-casanova
  • Richard Valentine
  • Robert Handler
  • Sharon L. Smith
  • Timothy Pasakarnis

Organizations

  • University of Iowa

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Batch Reactors
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Department Of Defense
  • Detectors
  • Ecology
  • Environment
  • Environmental Protection
  • Environmental Restoration And Remediation
  • Materials
  • Organic Chemistry
  • Water
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Environmental science

Readers

  • Groundwater Contamination Remediation.
  • Materials Science and Engineering.
  • Microbial Pathology

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation