Form Approved
REPORT DOCUMENTATION PAGE
OMB No. 0704-0188
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1. AGENCY USE ONLY (Leave blank)
2. REPORT DATE
3. REPORT TYPE AND DATES COVERED
August 1997
4. TITLE AND SUBTITLE
5. FUNDING NUMBERS
Site Remediation via Dispersion by Chemical Reaction (DCR)
CPAR Project AC910260
6. AUTHORS
Giles M. Marion, James R. Payne, and Gurdarshan S. Brar
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)
8. PERFORMING ORGANIZATION
REPORT NUMBER
U.S. Army Cold Regions Research and Engineering Laboratory
72 Lyme Road
Special Report 97-18
Hanover, New Hampshire 03755-1290
9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)
10. SPONSORING/MONITORING
AGENCY REPORT NUMBER
Office of the Chief of Engineers
Washington, DC 20314-1000
For conversion of SI units to non-SI units of measurement consult Standard Practice for Use of the
11. SUPPLEMENTARY NOTES
International System of Units (SI), ASTM Standard E380-93, published by the American Society for Testing and Materials,
1916 Race St., Philadelphia, Pa. 19103.
12a. DISTRIBUTION/AVAILABILITY STATEMENT
12b. DISTRIBUTION CODE
Approved for public release; distribution is unlimited.
Available from NTIS, Springfield, Virginia 22161.
13. ABSTRACT (Maximum 200 words)
The DCR (Dispersion by Chemical Reaction) technologies are a group of patented waste treatment processes
using CaO (quicklime) for the immobilization of heavily oiled sludges, oil-contaminated soils, acid-tars, and
heavy metals in Ca(OH)2 and CaCO3 matrices. The objectives of this project were to 1) evaluate the DCR pro-
cess for remediating soils contaminated with pesticides, petroleum hydrocarbons (oils and fuels), and heavy
metals in cold regions and 2) evaluate DCR-treated oil-contaminated soil as a non-frost-susceptible (NFS) con-
struction material. Three major studies evaluated the DCR process to remediate 1) hydrocarbons at Eareckson
Air Force Station on Shemya in the Aleutians, 2) pesticide-contaminated soils from Rocky Mt. Arsenal, and 3)
heavy-metal contaminated soils from a former zinc smelter site at Palmerton, Pennsylvania. The DCR process
was successful in stabilizing liquid organics and heavy metals in contaminated soils. The chemical properties
of soils contaminated by solid organics (asphalt tar and pesticides) were not generally improved by the DCR
process, but even in these cases, the physical properties were improved for potential reuse as construction
materials. Following laboratory verification for a specific waste, we can recommend the DCR process for the
field remediation of liquid organics and heavy-metal-contaminated materials.
14. SUBJECT TERMS
15. NUMBER OF PAGES
26
Chemical stabilization
DCR technology
16. PRICE CODE
Contaminated soils
Site remediation
17. SECURITY CLASSIFICATION
18. SECURITY CLASSIFICATION
19. SECURITY CLASSIFICATION
20. LIMITATION OF ABSTRACT
OF REPORT
OF THIS PAGE
OF ABSTRACT
UNCLASSIFIED
UNCLASSIFIED
UNCLASSIFIED
UL
Standard Form 298 (Rev. 2-89)
NSN 7540-01-280-5500
Prescribed by ANSI Std. Z39-18
298-102
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