Coupled Diffusion and Reaction Processes in Rock Matrices: Impact on Dilute Groundwater Plumes

Abstract

The overall goal of this research was to measure and evaluate the impacts of bedrock structure and mineralogy on the persistence and diffusive flux of trichloroethene (TCE) from rock matrices to groundwater, and to verify that abiotic dechlorination reactions capable of significantly reducing monitored natural attenuation (MNA) time frames actually occur in the field within bedrock matrices. Rates of abiotic chlorinated ethene degradation due to reaction with naturally occurring ferrous minerals within the rock matrices were compared to the rate of diffusive flux through the rock matrix. The impact of this degradation on attenuation time frames subsequently was assessed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 28, 2015
Accession Number
AD1031563

Entities

People

  • Charles E Schaefer
  • David Lippincott
  • Hailiang Dong
  • Rachel Towne

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Department Of Defense
  • Detectors
  • Ecology
  • Electron Microscopy
  • Inorganic Chemistry
  • Liquid Chromatography
  • Measurement
  • Mineralogy
  • Organic Chemistry
  • Phyllosilicates
  • Tectosilicates
  • Two Dimensional
  • X-Ray Computed Tomography

Fields of Study

  • Environmental science

Readers

  • Groundwater Contamination Remediation.