Foam Delivery of Hydrogen for Enhanced Aquifer Contacting and Anaerobic Bioremediation of Chlorinated Solvents

Abstract

Hydrogen biosparging of aquifers contaminated with chlorinated solvents is promising as a method to enhance in situ microbial dechlorination. The major problem is the inability to distribute hydrogen throughout the contaminated interval such that complete dechlorination can occur. Foam is a dispersion of gas in water that is stabilized from coalescence by the presence of a low concentration of surfactants. A promising method to greatly extend the horizontal migration of hydrogen in the subsurface is to deliver the hydrogen as an "in situ generated foam". In this report, we investigated the role of foam in hydrogen biosparging for aquifer remediation.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2005
Accession Number
ADA476343

Entities

People

  • Clarence A. Miller
  • George J. Hirasaki
  • Joseph B. Hughes

Organizations

  • Rice University

Tags

DTIC Thesaurus Topics

  • Alcohols
  • Alkenes
  • Biodegradation
  • Chemical Synthesis
  • Chemistry
  • Escherichia Coli
  • Fatty Acids
  • Fluids
  • Geometric Forms
  • Groundwater
  • Liquids
  • Microorganisms
  • Organic Chemistry
  • Pressure Measurement
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Fire Suppression Systems Design.
  • Groundwater Contamination Remediation.

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation