Effects of entrapped residual air bubbles on tracer transport in heterogeneous soil: Magnetic resonance imaging study

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F11%3A00181787" target="_blank" >RIV/68407700:21110/11:00181787 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.orggeochem.2011.03.020" target="_blank" >http://dx.doi.org/10.1016/j.orggeochem.2011.03.020</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.orggeochem.2011.03.020" target="_blank" >10.1016/j.orggeochem.2011.03.020</a>

Result language
angličtina
Original language name
Effects of entrapped residual air bubbles on tracer transport in heterogeneous soil: Magnetic resonance imaging study
Original language description
MRI was used to study the process of infiltration and solute transport in an undisturbed soil sample. The sample was subjected to the RPI experiment, which was carried out in order to assess the changes in the entrapped air volume and its impact on steady state flow rates and solute breakthrough. A pulse was injected in order to visualize the solute breakthrough. To obtain information about the soil structure and to reveal potential preferential pathways, the soil sample was scanned using CT. The localnickel ion transport breakthrough was evaluated from MR images. The preferential flow instability phenomenon with the emphasis on air bubble formation was shown by detecting a 60% decrease of the steady state infiltration rate. The detailed analyses of MRI measurements revealed air bubble formation, producing a flow rate decrease accompanied by redirection of nickel ion transport trajectories. By analyzing M0 maps it was found that the volumetric water content decrease was 2.2%.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DF - Pedology
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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