Physics
Scientific paper
Mar 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3106504l&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 6, CiteID L06504
Physics
Hydrology: Anthropogenic Effects, Hydrology: Groundwater Hydrology, Hydrology: Groundwater Quality
Scientific paper
This study utilized a series of laboratory experiments to examine the DNAPL mass removal rate and permeability reduction during ISCO using permanganate (MnO4-). Results show that MnO4- oxidation is effective in removing residual DNAPL from a porous medium. The DNAPL mass removal rate correlated positively with both the hydraulic stress and the oxidant load. A power relationship model of DNAPL mass removal under ISCO was proposed. Results also show that oxidation by-products CO2(g) and Mn oxide can cause pore plugging and flow by-passing. The reduction in hydraulic conductivity due to the Mn oxide precipitates was quantified. Hydraulic conductivity reduction as high as 80% was observed for oxidizing a small quantity of TCE.
Li David X.
Schwartz Franklin W.
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