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Transport and Biodegradation of Petroleum Hydrocarbon Vapors in the Subsurface. A Laboratory Soil Column Study

Abstract In this work, the vapor transport and aerobic bio-attenuation of compounds from a multi-component petroleum vapor mixture were studied for six idealized lithologies in 1.8-m tall laboratory soil columns. Columns representing different geological settings were prepared using 20-40 mesh sand (medium-grained) and 16-minus mesh crushed granite (fine-grained). The contaminant vapor source was a liquid composed of twelve petroleum hydrocarbons common in weathered gasoline. It was placed in a chamber at the bottom of each column and the vapors diffused upward through the soil to the top where they were swept away with humidified gas. The experiment was conducted in three phases: i) nitrogen sweep gas; ii) air sweep gas; iii) vapor source concentra... (more)
Created Date 2012
Contributor Escobar Melendez, Elsy Alejandrina (Author) / Johnson, Paul C. (Advisor) / Andino, Jean (Committee member) / Forzani, Erica (Committee member) / Krajmalnik-Brown, Rosa (Committee member) / Kavazanjian, Edward (Committee member) / Arizona State University (Publisher)
Subject Environmental engineering / Biodegradation / Fate and Transport / Petroleum Hydrocarbons / Vapor Intrusion
Type Doctoral Dissertation
Extent 272 pages
Language English
Reuse Permissions All Rights Reserved
Note Ph.D. Civil and Environmental Engineering 2012
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis