In-situ stabilization/solidification of PCB (polychlorinated biphenyls)-contaminated soil

Technical Report · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5284084

Sawyer, S; Stinson, M K

An evaluation was performed of the International Waste Technologies HWT-20 additive and the Geo-Con, Inc. deep-soil-mixing equipment for an in-situ stabilization/solidification process and its applicability as an on-site treatment method for waste-site cleanup. A demonstration was held at a General Electric Co. electric service shop in Hialeah, Florida which provided the bulk of the information for the technology evaluation. Conclusions were reached concerning the technology's suitability for use in cleanups of various contaminants and at different locations: immobilization of polychlorinated biphenyls (PCBs) appears likely, although due to low leachate concentrations for both the treated and untreated soils, a result of the low soil concentrations encountered in most of the tests, it cannot be confirmed; heavy metals can probably be immobilized; volatile organics can be reduced to low concentrations in treated-soil leachates, but the ability to immobilize is not clear; a small volume increase on the order of magnitude of 5-10% can be expected; the solidified material shows satisfactory physical properties, with high unconfined compressive strengths, moderately low permeabilities, and satisfactory integrity for the wet/dry samples, but unsatisfactory integrity for the freeze/thaw samples; and microstructural results indicate a dense, low-porosity, homogeneous mass, indicating a potential for long-term durability.

• Research Organization: Foster Wheeler Enviresponse, Inc., Edison, NJ (USA)
• OSTI ID: 5284084
• Report Number(s): PB-90-113291/XAB
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
29 ENERGY PLANNING
POLICY AND ECONOMY
CHLORINATED AROMATIC HYDROCARBONS
LAND POLLUTION
HAZARDOUS MATERIALS
WASTE DISPOSAL
REMEDIAL ACTION
SOILS
STABILIZATION
SUPERFUND
ADDITIVES
COST ESTIMATION
LEACHING
MIXERS
PERFORMANCE
SITE SURVEYS
SOLIDIFICATION
TECHNOLOGY UTILIZATION
AROMATICS
DISSOLUTION
HALOGENATED AROMATIC HYDROCARBONS
LAWS
MANAGEMENT
MATERIALS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLLUTION
POLLUTION LAWS
SEPARATION PROCESSES
WASTE MANAGEMENT
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
290300 - Energy Planning & Policy- Environment
Health
& Safety