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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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%.

Název v anglickém jazyce

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

Popis výsledku anglicky

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%.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Organic Geochemistry

ISSN

0146-6380

e-ISSN

—

Svazek periodika

42

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

991-998

Kód UT WoS článku

000295215300014

EID výsledku v databázi Scopus

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