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Natural Transport Of Volatile Organic Compounds Due To Annual Variation Of Soil Temperature

Submitted2008-12-30
Last Update2008-12-30
TitleNatural Transport Of Volatile Organic Compounds Due To Annual Variation Of Soil Temperature
Author(s)Author #1
Author title:
Name: Talib R. Abbas
Org: Ministry of Science and Technology, Baghdad, Iraq
Country: Iraq
Email: none@none.none

Author #2
Author title:
Name: Saadi K. Al-Naseri
Org: Ministry of Science and Technology, Baghdad, Iraq
Country: Iraq
Email:

Other Author(s)
Contact AuthorAuthor #1
Alt Email:
Telephone:
KeywordsVOC, Soil temperature, Mass transfer.
AbstractA theoretical investigation of factors affecting gas phase transport of volatile organic compounds in unsaturated zone is presented. Studying annual soil temperature variation with time and depth declares that there is a considerable temperature variation in the upper few meters that may affect the overall natural mass transport of volatile organic compounds. A one-dimensional mathematical model is used to study the effect of soil temperature variation on diffusive mass transport. From the analytical solution, it is clear that there is a significant net mass transport upward direction and a stimulated spatial oscillation of contaminant concentration in soil. The magnitude of these two modes of mass transport is higher as the contaminant is more volatile.
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