Engineering-scale evaluation of thermal desorption technology for manufactured-gas plant-site soils. Topical report, July 1988-August 1989
As part of a program to evaluate and develop technologies for remediation of contaminated soils at manufactured gas plant (MGP) sites, pilot plant tests of a thermal desorption treatment technology were performed. Coal-tar-contaminated soil samples from three MGP sites were characterized, and bench-scale treatability tests were performed to establish treatment conditions to use for the pilot tests. A series of 11 pilot tests were completed using an indirectly heated rotary desorber operating at 30 to 60 kilograms/hour of soil. Treatment conditions of 300 C and 400 C and soil residence times of 5 and 9 minutes were used. Total polycyclic aromatic hydrocarbon concentrations were reduced to between 150 and 1 part per million (ppm) from initial levels of 2000 to 400 ppm, depending on treatment conditions. Temperature, residence time, and soil type all had a significant effect on treatment efficiency. Reasonable agreement was found among results from the static, batch, bench-scale test apparatus and the dynamic, continuous pilot plant.
- Research Organization:
- IT Corp., Knoxville, TN (USA)
- OSTI ID:
- 6917711
- Report Number(s):
- PB-90-172529/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010900* -- Coal
Lignite
& Peat-- Environmental Aspects
AROMATICS
BENCH-SCALE EXPERIMENTS
CALIFORNIA
COAL GAS
COAL GASIFICATION
CONTAMINATION
DESORPTION
DOCUMENT TYPES
ECOLOGICAL CONCENTRATION
ENVIRONMENTAL EFFECTS
FEDERAL REGION IX
FEDERAL REGION V
FLUIDS
FUNCTIONAL MODELS
GASES
GASIFICATION
HAZARDOUS MATERIALS
HYDROCARBONS
ILLINOIS
INDUSTRIAL WASTES
LAND POLLUTION
LAND RECLAMATION
MANAGEMENT
MATERIALS
NORTH AMERICA
ORGANIC COMPOUNDS
PILOT PLANTS
POLLUTION
POLYCYCLIC AROMATIC HYDROCARBONS
PROGRESS REPORT
REMEDIAL ACTION
SAMPLE PREPARATION
SITE SURVEYS
SOILS
THERMOCHEMICAL PROCESSES
USA
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES