Site remediation via Dispersion by Chemical Reaction (DCR). Special report

Technical Report · Fri Aug 01 04:00:00 EDT 1997

OSTI ID:564801

Marion, G M; Payne, J R; Brar, G S

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 process 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) construction 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.

• Research Organization: Cold Regions Research and Engineering Lab., Hanover, NH (United States)
• OSTI ID: 564801
• Report Number(s): AD-A--330681/8/XAB; CRREL-SR--97-18
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ALASKA
CALCIUM OXIDES
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CONTAMINATION
DISPERSIONS
FUELS
HYDROCARBONS
HYDROXIDES
METALS
MILITARY FACILITIES
OILS
PESTICIDES
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
REMEDIAL ACTION
STABILIZATION
TAR