Pulsed-Jet Ground Penetration for Delivery of In Situ Bioremediation Agents

EPA Contract Number: 68D50108
Title: Pulsed-Jet Ground Penetration for Delivery of In Situ Bioremediation Agents
Investigators: Kolle, Jack
Small Business: Quest Integrated Inc.
EPA Contact: Manager, SBIR Program
Phase: I
Project Period: September 1, 1995 through March 1, 1996
Project Amount: $65,000
RFA: Small Business Innovation Research (SBIR) - Phase I (1995) RFA Text |  Recipients Lists
Research Category: SBIR - Waste , Hazardous Waste/Remediation , Small Business Innovation Research (SBIR)


In situ bioremediation would significantly reduce the costs and risks associated with the cleanup of chlorinated aliphatic hydrocarbon (CAH) solvent contamination in the vadose zone and in groundwater. CAH remediation requires controlled access to the subsurface for delivery and mixing of a variety of chemical and biological agents. Safe, cost-effective, and controlled access for CAH bioremediation is not provided by existing techniques such as well injection or mechanical mixing. Quest Integrated, Inc., propose to develop an ultrahigh-pressure pulsed-jet system capable of punching deep (10 m) holes in heterogeneous soils and fracturing the surrounding formation. This approach offers rapid, positive access to the contaminated zone by the microbes, substrates, and electron-acceptors required by CAH cometabolic degradation in the vadose zone. Deployed in a borehole, the pulsed-jet system will greatly increase the permeability of formations surrounding a wellpoint allowing implementation of methods to circulate and teat contaminated groundwater. The pulsed-jet technique provides a flexible means of ground penetration and permeability enhancement that will enable a variety of CAH bioremediation schemes. This approach provides rapid low-cost access to the subsurface while minimizing the exposure of workers and the public to contaminants.

Supplemental Keywords:

small business, SBIR, hazardous waste, engineering, chemistry., Scientific Discipline, Waste, Water, Contaminated Sediments, Civil/Environmental Engineering, Engineering, Groundwater remediation, Environmental Engineering, sediment treatment, wells, in situ treatment, in situ remediation, soil and groundwater remediation, contaminated sediment, remediation, groundwater contamination, pulsed waterjet, soil perferator, soil perforator

Progress and Final Reports:

  • Final