Electrokinetic-Enhanced (EK-Enhanced) Amendment Delivery for Remediation of Low Permeability and Heterogeneous Materials

Abstract

This project demonstrated and validated electrokinetic (EK)-enhanced amendment delivery for in-situ bioremediation (EK-BIO) via enhanced reductive dechlorination (ERD) of a tetrachloroethene source area in clay. The EK-enhanced amendment delivery technology entails the establishment of an electric field in the subsurface using a network of electrodes. The electrical current and voltage gradient established across a direct-current electric field provide the driving force to transport remediation amendments, including electron donors, chemical oxidants, and even bacteria, through the subsurface. This project showed that EK could achieve relatively uniform transport in low-permeability materials. This technology also represents a remedial alternative with excellent environmental performance.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2018
Accession Number
AD1058105

Entities

People

  • Adrienne Wilson
  • David Gent
  • David Reynolds
  • Evan Cox
  • James Wang
  • Michael Singletary

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Alkenes
  • Bacteria
  • Buffers (Chemistry)
  • Chemical Reactions
  • Chemistry
  • Construction
  • Control Systems
  • Direct Current
  • Electric Current
  • Electric Fields
  • Electrical Properties
  • Energy Consumption
  • Fatty Acids
  • Groundwater
  • Materials
  • Microorganisms
  • Voltage

Readers

  • Computer Networking
  • Environmental Engineering.
  • Plasma Physics.

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation
  • Microelectronics