Natural Transport of Volatile Organic Compounds Due to Annual Variation of Soil Temperature
Abstract
A 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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ISSN: 1993-0461 ISSN: 2225-157X,
Edited and Published by Jordan University of Science and Technology, P.O.Box 3030, Irbid 22110, Jordan
Mailing address: Prof. Fouad Gharaybeh, Ph.D.
Editor-in-Chief Civil Engineering Department Jordan University of Science and Technology Irbid 22110, Jordan Tel. No. + 962 2 7201000 ext. 22104 Fax No. + 962 2 7201073
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