Infiltration and redistribution of organic liquids in layered porous media

Journal Article · · Soil Science Society of America Journal; (United States)

DOI:https://doi.org/10.2136/sssaj1994.03615995005800030010x· OSTI ID:6976983

Cary, J W; Simmons, C S; McBride, J F ^[1]

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1. Pacific Northwest Lab., Richland, WA (United States)

The remediation of many toxic waste sites throughout the world requires a better understanding of the flow of organic liquids in the vadose zone. The infiltration and redistribution of three water-immiscible oils into columns filled with porous material containing different textural layers are reported. In some experiments, oil followed water into the columns and in others, water followed oil. An explicit, one-dimensional, multiphase flow code was used to model the results. The numerical model contains elements of code that: (i) mimic the Haines jump phenomenon in dry sand, (ii) account for oil entrapment when water infiltrates, (iii) include forces on the oil phase caused by surface-spreading pressures at the oil front in water-wetted pores, (iv) include forces on the oil phase caused by water intrusion into hydrophilic oil-saturated pores, and (v) generate a factor that matches the water potentials of textural layers for the initial boundary conditions. In general, the model did a reasonable job of predicting the distribution of both water and oil 8 h after infiltration was started, though some unresolved problems persist. 15 refs., 6 figs., 7 tabs.

• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6976983
• Journal Information: Soil Science Society of America Journal; (United States), Journal Name: Soil Science Society of America Journal; (United States) Vol. 58:3; ISSN 0361-5995; ISSN SSSJD4
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540210 -- Environment
Terrestrial-- Basic Studies-- (1990-)
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BLOOD VESSELS
BODY
CAPILLARIES
CARDIOVASCULAR SYSTEM
COMPILED DATA
CONTROL
DATA
FLUID FLOW
HYDROGEN COMPOUNDS
INFORMATION
LAND POLLUTION CONTROL
LAND RECLAMATION
MATERIALS
MULTIPHASE FLOW
NUMERICAL DATA
NUMERICAL SOLUTION
OILS
ORGANIC COMPOUNDS
ORGANS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLLUTION CONTROL
POROUS MATERIALS
SAND
SOILS
WATER