OXIDATION SYSTEMS, INC.
 
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Oxidation Systems is a full-service equipment fabricator. We can build a custom remediation system to meet the requirements of virtually any chemical oxidation project. We also offer a full suite of standard products that can be used at many remediation sites.

We offer ozone generating systems for soil and groundwater remediation projects.

Chemical Oxidation

Remediation of groundwater contamination using in-situ chemical oxidation involves injecting oxidants and other amendments as required directly into the source zone and downgradient plume. The oxidants that are commonly used include ozone, hydrogen peroxide, and potassium permanganate. The oxidant chemicals react with the contaminant, producing innocuous substances such as carbon dioxide (C02), water (H20), and inorganic chloride.

In-situ chemical oxidation offers several advantages over conventional treatment technologies such as pump and treat. For example, the technology does not generate large volumes of waste material that must be disposed of and/or treated. In-situ chemical oxidation is also implemented over a much shorter time frame. Despite the many advantages, this technology also has various limitations and should not be considered a magic bullet for every site.

In-situ chemical oxidation is useful for source area mass reduction and intercepting of plumes to remove mobile contaminants. Various oxidizers are effective for different contaminants. Applicable contaminants include chlorinated solvents, polyaromatic hydrocarbons, and petroleum products. These include PCE, TCE, vinyl chloride, and the BTEX compounds as well as naphthalenes. The appropriateness of chemical oxidation technologies at a site also depends on matching the oxidant and delivery system to the site contaminants and site conditions. For example, permanganate is not effective against BTEX while peroxide and ozone are. This requires careful site characterization and screening. Oxidation is dependent on achieving adequate contact between oxidants and contaminants. Failure to account for subsurface heterogeneities or preferential flow paths can result in extensive pockets of untreated contaminants.

 

 

 
 
 
 
 

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396 Washington Street, Suite 193, Wellesley, MA 02481
Telephone: (508) 298-4787

Copyright 2004 Oxidation Systems, Inc.