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In situ chemical oxidation (ISCO) has become a widely used remediation technique for contaminated areas due to its proven effectiveness. The use of potassium permanganate (KMnO4) to degrade trichloroethylene (TCE, C4HCl3) has demonstrated favorable results in both pilot- and field-scale studies. However, a key challenge in optimizing the process lies in the limited understanding of reactions at the microscale.
This work seeks to investigate the pore-scale dynamics of the ISCO remediation process of TCE using KMnO4. The study employs 3D synchrotron-based computed microtomography (µCT) to capture time-resolved images of an injection experiment conducted in a porous medium. Initial characterization of the water-saturated sample provided crucial data, including total porosity, grain surface area, and pore tortuosity. Analysis of samples saturated with TCE and KMnO4 revealed changes in permeability, residual contaminant levels, and the formation of reaction products.
| Country | Brasil |
|---|---|
| Water & Porous Media Focused Abstracts | This abstract is related to Water |
| Acceptance of the Terms & Conditions | Click here to agree |
