Evaluation and modeling of volatile organic vapor transport in the unsaturated zone for ground-water-quality protection. Final report
Technical Report
·
OSTI ID:5028846
The effects of hydraulic and temperature gradients on the emissions of hazardous organic vapors from soil systems were evaluated under a variety of initial and boundary conditions. To provide necessary environmental fate input data for transport modeling, laboratory investigations were undertaken to evaluate the effects of temperature on soil liquid-transport coefficients and multiphase soil-distribution constants. Distribution coefficient determinations were evaluated using multiphase versus two-phase, and single component versus multicomponent systems, and the feasibility and accuracy of computational methods for estimating multiphase/multicomponent distribution coefficients was investigated. The vapor-diffusions coefficients of three soils were determined as a function of bulk density, liquid content, and vapor composition. Partition coefficients determined for ten volatile compounds introduced individually into batch-equilibrium reactors were statistically equivalent to those determined when introduced as a mixture of ten compounds; linear isotherms adequately described these distribution relationships over the range of volatile organic chemical concentrations examined in the study.
- Research Organization:
- Utah State Univ., Logan, UT (USA). Utah Water Research Lab.
- OSTI ID:
- 5028846
- Report Number(s):
- PB-90-119736/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
COMPUTERIZED SIMULATION
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
FLUID MECHANICS
GROUND WATER
HAZARDOUS MATERIALS
HYDRAULICS
HYDROGEN COMPOUNDS
LAND POLLUTION
LEAKS
MANAGEMENT
MASS TRANSFER
MATERIALS
MATTER
MECHANICS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
POLLUTION
POLLUTION ABATEMENT
PROGRESS REPORT
SIMULATION
VOLATILE MATTER
WASTE DISPOSAL
WASTE MANAGEMENT
WATER
WATER POLLUTION ABATEMENT
WATER QUALITY
540320* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (1990-)
COMPUTERIZED SIMULATION
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
ENVIRONMENTAL TRANSPORT
FLUID MECHANICS
GROUND WATER
HAZARDOUS MATERIALS
HYDRAULICS
HYDROGEN COMPOUNDS
LAND POLLUTION
LEAKS
MANAGEMENT
MASS TRANSFER
MATERIALS
MATTER
MECHANICS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PESTICIDES
POLLUTION
POLLUTION ABATEMENT
PROGRESS REPORT
SIMULATION
VOLATILE MATTER
WASTE DISPOSAL
WASTE MANAGEMENT
WATER
WATER POLLUTION ABATEMENT
WATER QUALITY