Chemical Oxidation
http://en.wikipedia.org/wiki/Groundwater_remediation
Chemical Oxidation is form of groundwater remediation to reduce
the concentrations of targeted environmental contaminants to acceptable levels.
Chemical oxidation is accomplished by injecting or otherwise introducing strong chemical oxidizers into contaminated medium
to destroy chemical contaminants in place.
Chemical
oxidation is one half of a redox reaction, which results in the loss of
electrons. One of the reactants in the reaction becomes oxidized, or loses
electrons, while the other reactant becomes reduced, or gains electrons. In
ISCO, oxidizing compounds, compounds that give electrons away to other
compounds in a reaction, are used to change the contaminants into harmless
compounds.[1] The in situ in ISCO is just Latin for “in
place”, signifying that ISCO is a chemical oxidation reaction that occurs
at the site of the contamination.
Some
common chemical oxidation agents are potassium and sodium permanganate.
Hydrogen Peroxide is one such agent. Ozone or oxygen are other agents.