EPA Science Inventory

EVALUATION OF TECHNOLOGIES FOR IN SITU CLEANUP OF DNAPL CONTAMINATED SITES

Citation:

Grubb, D. G. AND N. Sitar. EVALUATION OF TECHNOLOGIES FOR IN SITU CLEANUP OF DNAPL CONTAMINATED SITES. U.S. Environmental Protection Agency, Washington, DC, EPA/600/SR-94/120, 1994.

Description:

Ground-water contamination by nonaqueous phase liquids poses one of the greatest remedial challenges In the field of environmental engineering. Denser-than-water nonaqueous phase liquids (DNAPLs) are especially problematic due to their tow water solubility, high density, and capillary forces arising from Interfaclal tension between the DNAPLs and water. As a result, conventional pump-and-treat technologies have met poor success in remediation of DNAPL-contaminated aquifers. In certain situations, conventional pump-and-treat methods may actually extend existing contamination into previously uncontamlnated areas. The problems associated with current pump-and-treat remedial approaches have served as the Impetus to develop alternative technologies to accelerate In-situ DNAPL contamination remediation. This report provides a review and technical evaluation of /n-s/fu technologies for remediation of DNAPL contamination occurring below the groundwater table. Various In-situ technologies are reviewed and are evaluated on the basis of their theoretical background, field implementation, level of demonstration and performance, waste, technical and site applicability/limitations, and cost and availability.

Purpose/Objective:

publish information

URLs/Downloads:

EVALUATION OF TECHNOLOGIES FOR IN SITU CLEANUP OF DNAPL CONTAMINATED SITES

Record Details:

Record Type: DOCUMENT (SUMMARY)
Start Date: 09/01/1994
Completion Date: 09/01/1994
Record Last Revised: 08/27/2008
Record Created: 12/08/2004
Record Released: 04/02/2005
OMB Category: Other
Record ID: 126487

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

SUBSURFACE PROTECTION AND REMEDIATION DIVISION