๐๐จ๐ฐ ๐๐จ ๐ญ๐ก๐ ๐ฐ๐จ๐ซ๐ฌ๐ญ ๐๐จ๐ง๐ญ๐๐ฆ๐ข๐ง๐๐ง๐ญ๐ฌ ๐ฌ๐ง๐๐๐ค ๐ญ๐ก๐ซ๐จ๐ฎ๐ ๐ก ๐จ๐ฎ๐ซ ๐ ๐ซ๐จ๐ฎ๐ง๐๐ฐ๐๐ญ๐๐ซ ๐ฌ๐ฒ๐ฌ๐ญ๐๐ฆ๐ฌ? ๐ ๐๐ก๐ข๐ฌ ๐ข๐ฌ ๐ก๐จ๐ฐ ๐ฉ๐จ๐ฅ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง ๐ซ๐๐๐ฅ๐ฅ๐ฒ ๐ฆ๐จ๐ฏ๐๐ฌโ๐๐ง๐ ๐ฐ๐ก๐ฒ ๐ข๐ญ'๐ฌ ๐ฌ๐จ ๐ก๐๐ซ๐ ๐ญ๐จ ๐ฌ๐ญ๐จ๐ฉ.
Imagine this: A liquid denser than water slowly makes its way through different layers of soil, painting a vivid story of how pollution spreads and interacts with groundwater.
That's exactly what's happening in this incredible tank experiment! ๐จ๐
๐ด The Journey of Tetrachloroethene (PCE)
In the video, you can see tetrachloroethene (PCE) being released into a specially prepared sand tank.
What youโre watching is not just a pretty flowโit's the journey of a dense non-aqueous phase liquid (DNAPL) moving through a heterogeneous environment, interacting with different soil types and layers.
These layers have varying permeability, meaning the DNAPL may move quickly through one part while barely moving through another.
This behavior creates complex contamination patterns that are challenging to predict and address.
๐ Why does this matter?
DNAPLs are some of the most stubborn contaminants to clean up. They don't dissolve easily and can create long-term groundwater contamination issues, often persisting for decades if not properly managed.
Unlike other pollutants, DNAPLs tend to sink through water until they reach an impermeable layer, where they can pool and act as a continuous source of contamination. The way they move depends on the soil structureโlayers of sand, clay, and the invisible pathways formed within.
These invisible pathways, or preferential flow paths, are crucial because they determine where the contaminant will travel.
Understanding these dynamics helps scientists and engineers develop better, more targeted remediation techniques, such as:
๐ง Hydraulic barriers to control the movement
๐ง In-situ chemical oxidation to break down contaminants
๐ฟ Bioremediation strategies to mitigate contamination effectively
๐ข Over to you!
Have you worked with DNAPL-contaminated sites?
๐ฅ KG Mumford 2023, Queen's University University
Thanks a ton for this informative work Dr. Ariel Nunez Garcia and Brian Moore. Also, thanks for sharing Kevin Mumford !
*๐๐ฐ๐ฑ๐บ๐ณ๐ช๐จ๐ฉ๐ต๐ด ๐ง๐ฐ๐ณ ๐ต๐ฉ๐ช๐ด ๐ท๐ช๐ฅ๐ฆ๐ฐ ๐ฃ๐ฆ๐ญ๐ฐ๐ฏ๐จ ๐ต๐ฐ ๐ต๐ฉ๐ฆ ๐ณ๐ฆ๐ด๐ฑ๐ฆ๐ค๐ต๐ช๐ท๐ฆ ๐ฐ๐ธ๐ฏ๐ฆ๐ณ. ๐๐ฐ๐ณ ๐ข๐ฏ๐บ ๐ช๐ฏ๐ฒ๐ถ๐ช๐ณ๐ช๐ฆ๐ด, ๐ค๐ญ๐ข๐ช๐ฎ๐ด, ๐ฐ๐ณ ๐ณ๐ฆ๐ฎ๐ฐ๐ท๐ข๐ญ ๐ณ๐ฆ๐ฒ๐ถ๐ฆ๐ด๐ต๐ด, ๐ฑ๐ญ๐ฆ๐ข๐ด๐ฆ ๐ง๐ฆ๐ฆ๐ญ ๐ง๐ณ๐ฆ๐ฆ ๐ต๐ฐ ๐ค๐ฐ๐ฏ๐ต๐ข๐ค๐ต ๐ฎ๐ฆ.
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๐๐๐๐ฐ๐ ๐๐๐'๐๐ ๐๐๐๐๐๐๐๐๐๐ ๐๐ ๐๐๐๐๐๐๐ ๐๐๐๐๐, ๐๐๐๐๐๐:
๐ Follow Karoline Qasem, PhD, PE, PMP, CFM, #20MinRule
๐ Click the bell icon on my profile
๐ Like
๐ Repost
---------------
#GroundwaterContamination #DNAPL #EnvironmentalEngineering #WaterQuality #Remediation #Hydrogeology #LinkedInLearning #GroundwaterRemediation #ContaminantTransport #EnvironmentalScience #SoilContamination
Imagine this: A liquid denser than water slowly makes its way through different layers of soil, painting a vivid story of how pollution spreads and interacts with groundwater.
That's exactly what's happening in this incredible tank experiment! ๐จ๐
๐ด The Journey of Tetrachloroethene (PCE)
In the video, you can see tetrachloroethene (PCE) being released into a specially prepared sand tank.
What youโre watching is not just a pretty flowโit's the journey of a dense non-aqueous phase liquid (DNAPL) moving through a heterogeneous environment, interacting with different soil types and layers.
These layers have varying permeability, meaning the DNAPL may move quickly through one part while barely moving through another.
This behavior creates complex contamination patterns that are challenging to predict and address.
๐ Why does this matter?
DNAPLs are some of the most stubborn contaminants to clean up. They don't dissolve easily and can create long-term groundwater contamination issues, often persisting for decades if not properly managed.
Unlike other pollutants, DNAPLs tend to sink through water until they reach an impermeable layer, where they can pool and act as a continuous source of contamination. The way they move depends on the soil structureโlayers of sand, clay, and the invisible pathways formed within.
These invisible pathways, or preferential flow paths, are crucial because they determine where the contaminant will travel.
Understanding these dynamics helps scientists and engineers develop better, more targeted remediation techniques, such as:
๐ง Hydraulic barriers to control the movement
๐ง In-situ chemical oxidation to break down contaminants
๐ฟ Bioremediation strategies to mitigate contamination effectively
๐ข Over to you!
Have you worked with DNAPL-contaminated sites?
๐ฅ KG Mumford 2023, Queen's University University
Thanks a ton for this informative work Dr. Ariel Nunez Garcia and Brian Moore. Also, thanks for sharing Kevin Mumford !
*๐๐ฐ๐ฑ๐บ๐ณ๐ช๐จ๐ฉ๐ต๐ด ๐ง๐ฐ๐ณ ๐ต๐ฉ๐ช๐ด ๐ท๐ช๐ฅ๐ฆ๐ฐ ๐ฃ๐ฆ๐ญ๐ฐ๐ฏ๐จ ๐ต๐ฐ ๐ต๐ฉ๐ฆ ๐ณ๐ฆ๐ด๐ฑ๐ฆ๐ค๐ต๐ช๐ท๐ฆ ๐ฐ๐ธ๐ฏ๐ฆ๐ณ. ๐๐ฐ๐ณ ๐ข๐ฏ๐บ ๐ช๐ฏ๐ฒ๐ถ๐ช๐ณ๐ช๐ฆ๐ด, ๐ค๐ญ๐ข๐ช๐ฎ๐ด, ๐ฐ๐ณ ๐ณ๐ฆ๐ฎ๐ฐ๐ท๐ข๐ญ ๐ณ๐ฆ๐ฒ๐ถ๐ฆ๐ด๐ต๐ด, ๐ฑ๐ญ๐ฆ๐ข๐ด๐ฆ ๐ง๐ฆ๐ฆ๐ญ ๐ง๐ณ๐ฆ๐ฆ ๐ต๐ฐ ๐ค๐ฐ๐ฏ๐ต๐ข๐ค๐ต ๐ฎ๐ฆ.
-----------------
๐๐๐๐ฐ๐ ๐๐๐'๐๐ ๐๐๐๐๐๐๐๐๐๐ ๐๐ ๐๐๐๐๐๐๐ ๐๐๐๐๐, ๐๐๐๐๐๐:
๐ Follow Karoline Qasem, PhD, PE, PMP, CFM, #20MinRule
๐ Click the bell icon on my profile
๐ Like
๐ Repost
---------------
#GroundwaterContamination #DNAPL #EnvironmentalEngineering #WaterQuality #Remediation #Hydrogeology #LinkedInLearning #GroundwaterRemediation #ContaminantTransport #EnvironmentalScience #SoilContamination
