Emerging site characterization technologies for volatile organic compounds

Conference · Fri May 01 00:00:00 EDT 1992

OSTI ID:5177507

Rohay, V J; Last, G V

A Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) expedited response action (ERA) has been initiated at Hanford Site's 200 West Area for the removal of carbon tetrachloride from the unsaturated soils. In coordination with the ERA, innovative technology demonstrations are being conducted as part of DOE's Volatile Organic Compounds -- Arid Integrated Demonstration in an effort to improve upon baseline technologies. Improved methods for accessing, sampling, and analyzing soil and soil-vapor contaminants is a high priority. Sonic drilling is being evaluated as an alternative to cable-tool drilling, while still providing the advantages of reliability, containment, and waste minimization. Applied Research Associates, Inc. used their cone penetrometer in the 200 West Area to install a permanent soil-gas monitoring probe and to collect soil-gas profile data. However, successful application of this technology will require the development of an improved ability to penetrate coarse gravel units. A Science and Engineering Associates Membrane Instrumentation and Sampling Technique (SEAMIST) system designed for collecting in situ soil samples and air permeability data in between drilling runs at variable depths is being tested in 200 West Area boreholes. Analytical technologies scheduled for testing include supercritical fluid extraction and analysis for non- and semi-volatile organic co-contaminants and an unsaturated flow apparatus developed by Washington State University for the measurement of transport parameters.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5177507
• Report Number(s): PNL-SA-20989; CONF-9205193-1; ON: DE92015154
• Resource Relation: Conference: Technology information exchange (TIE) workshop, Albuquerque, NM (United States), 19-21 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
GASES
SAMPLING
ORGANIC COMPOUNDS
SOILS
DRILLING
EVALUATION
HANFORD RESERVATION
REMEDIAL ACTION
SUPERCRITICAL GAS EXTRACTION
EXTRACTION
FLUIDS
NATIONAL ORGANIZATIONS
SEPARATION PROCESSES
SOLVENT EXTRACTION
US DOE
US ERDA
US ORGANIZATIONS
540250* - Environment
Terrestrial- Site Resource & Use Studies- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)