Hydraulic fracturing to enhance the remediation of DNAPL in low permeability soils
- Univ. of Cincinnati, OH (United States)
- FRX Inc., Cincinnati, OH (United States)
Meager rates of fluid flow are a major obstacle to in situ remediation of low permeability soils. This paper describes methods designed to avoid that obstacle by creating fractures and filling them with sand to increase well discharge and change paths of fluid flow in soil. Gently dipping fractures 10 m in maximum dimension and 1 to 2 cm thick can be created in some contaminated soils at depths of a few in or greater. Hydraulic fractures can also be used to create electrically conductive layers or to deliver granules of chemically or biologically active compounds that will degrade contaminants in place. Benefits of applying hydraulic fractures to DNAPL recovery include rates of fluid recovery, enhancing upward gradients to improve hydrodynamic stabilization, forming flat-lying reactive curtains to intersect compounds moving downward, or improving the performance of electrokinetics intended to recover compounds dissolved in water. 30 refs., 7 figs., 1 tab.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- OSTI ID:
- 447168
- Report Number(s):
- ORNL/TM--13305; ON: DE97050722
- Country of Publication:
- United States
- Language:
- English
Similar Records
The use of upward hydraulic gradients to arrest downward DNAPL migration in rock fractures
Remediation of DNAPLs in Low Permeability Soils. Innovative Technology Summary Report
Electroosmosis remediation of DNAPLS in low permeability soils
Journal Article
·
Thu May 01 00:00:00 EDT 1997
· Ground Water
·
OSTI ID:495416
Remediation of DNAPLs in Low Permeability Soils. Innovative Technology Summary Report
S&T Accomplishment Report
·
Fri Sep 01 00:00:00 EDT 2000
·
OSTI ID:779089
Electroosmosis remediation of DNAPLS in low permeability soils
Technical Report
·
Thu Aug 01 00:00:00 EDT 1996
·
OSTI ID:447164