EPA 540/MR-03/503
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Superfund
Innovative Technology Evaluation Demonstration Bulletin - Steam Enhanced Remediation
Steam Tech Environmental Services, Inc.
ABSTRACT
Superfund Innovative Technology Evaluation Demonstration Bulletin - Steam
Enhanced Remediation Steam Tech Environmental Services, Inc.
EPA 540/MR-03/503
April 2003
Steam Enhanced Remediation (SER) is a process in which steam is injected into
the subsurface and volatile and semivolatile contaminants are collected in the
vapor phase, in the aqueous phase, and possibly as a nonaqueous phase liquid
(NAPL). The general approach employed is to surround the contaminated zone with
steam injection wells to displace NAPLs and groundwater to centrally located
extraction wells. Residual contaminants are vaporized when the heat front reaches
them and collected by vacuum extraction. Steam migration is monitored using
Electrical Resistance Tomography (ERT) and thermocouples.
SteamTech Environmental Services, Inc. has successfully applied this technology
for the recovery of contaminants from soils and aquifers, and at a fractured
granite site at Edwards Air Force Base, California. The demonstration at the
former Loring Air Force Base Quarry site was the first time that the steam injection
technology was used at a contaminated site composed entirely of fractured limestone.
Contact:
Eva Davis
davis.eva@epa.gov
Posted May 01, 2003
Computer Sciences Corporation
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