Status : Verified
| Personal Name | Lim, Justine Kei T. |
|---|---|
| Resource Title | Evaluation of sustained persulfate oxidant release for remediating trichloroethylene contaminated low permeability silty soil in the phreatic zone |
| Date Issued | 31 July 2023 |
| Abstract | Desorption and back diffusion of a chlorinated solvent such as trichloroethylene (TCE) from the low permeability zone (LPZ) to the transmissive zone in the subsurface exhibits a challenge in remediation. The study was to investigate the in situ chemical oxidation (ISCO) using a sodium persulfate sustained-release rod (SPS SR-rod) for potential remediation application of TCE contamination in the LPZ within a two-dimensional sand tank. The objective was to determine the SPS concentration distribution contour when placing the SPS SR-rod atop and within the LPZ. A laboratory scale, 2D tank system (100 cm L x 5 cm W x 50 cm H) represents a distinct type of LPZ in the geologic settings, exhibiting a saturated dual permeability porous media. The SPS SR-rod placed within the LPZ released an average ~625 mg L-1 concentration contour from at least 10 to 15 cm lateral distance from the rod. When the rod placement was atop LPZ, continuous determination of persulfate concentrations at an average value of ~57 mg L-1 within |
| Degree Course | Master of Science in Environmental Engineering |
| Language | English |
| Keyword | Groundwater contamination; Contaminant rebound; Long term remediation; In Situ Chemical Oxidation (ISCO); Controlled release; Trichloroethylene |
| Material Type | Thesis/Dissertation |
Preliminary Pages
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Category : I - Has patentable or registrable invention of creation.
Access Permission : Limited Access