VOCs in Non-Arid Soils Integrated Demonstration: Technology summary

Technical Report · Tue Feb 01 04:00:00 UTC 1994

DOI:https://doi.org/10.2172/10135812· OSTI ID:10135812

The Volatile Organic Compounds (VOCs) in Non-Arid Soils Integrated Demonstration (ID) was initiated in 1989. Objectives for the ID were to test the integrated demonstration concept, demonstrate and evaluate innovative technologies/systems for the remediation of VOC contamination in soils and groundwater, and to transfer technologies and systems to internal and external customers for use in fullscale remediation programs. The demonstration brought together technologies from DOE laboratories, other government agencies, and industry for demonstration at a single test bed. The Savannah River Site was chosen as the location for this ID as the result of having soil and groundwater contaminated with VOCS. The primary contaminants, trichlorethylene and tetrachloroethylene, originated from an underground process sewer line servicing a metal fabrication facility at the M-Area. Some of the major technical accomplishments for the ID include the successful demonstration of the following: In situ air stripping coupled with horizontal wells to remediate sites through air injection and vacuum extraction; Crosshole geophysical tomography for mapping moisture content and lithologic properties of the contaminated media; In situ radio frequency and ohmic heating to increase mobility, of the contaminants, thereby speeding recovery and the remedial process; High-energy corona destruction of VOCs in the off-gas of vapor recovery wells; Application of a Brayton cycle heat pump to regenerate carbon adsorption media used to trap VOCs from the offgas of recovery wells; In situ permeable flow sensors and the colloidal borescope to determine groundwater flow; Chemical sensors to rapidly quantify chlorinated solvent contamination in the subsurface; In situ bioremediation through methane/nutrient injection to enhance degradation of contaminants by methanotrophic bateria.

• Research Organization: USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States). Office of Technology Development
• Sponsoring Organization: USDOE, Washington, DC (United States)
• OSTI ID: 10135812
• Report Number(s): DOE/EM--0135P; ON: DE94008863; NC: NONE
• Country of Publication: United States
• Language: English

Related Subjects

054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
54 ENVIRONMENTAL SCIENCES
540220
540250
BIODEGRADATION
CHEMICALS MONITORING AND TRANSPORT
CHLORINATED ALIPHATIC HYDROCARBONS
DEMONSTRATION PROGRAMS
DIRECTIONAL DRILLING
EXTRACTION
GROUND WATER
HEALTH AND SAFETY
HEATING
REMEDIAL ACTION
REMOVAL
SAVANNAH RIVER PLANT
SITE CHARACTERIZATION
SITE RESOURCE AND USE STUDIES
SOILS
VAPORS