Case Study: Chemical Oxidation

Project Location: Cobourg, Ontario, Canada Background: The decommissioning of a gas bar, situated in the parking lot of a shopping mall, required remediation to prepare the site for new development. The busy location necessitated a discrete approach, on a small site...

Choosing the Right Approach: Chemical Oxidation

In our experience, the most applied of the in-situ technologies in Canada is In-Situ Chemical Oxidation (ISCO). Put simply, ISCO chemically oxidizes compounds of concern within the subsurface. The process transfers electrons from the contaminants to the oxidant, degrading them into less-toxic compounds and harmless by-products.

Numerous factors need to be considered when designing an effective ISCO program, including the oxidant itself, injection method, reaction time, hydrogeology, geology, geochemistry of the soil and groundwater, and treatment objective.