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Klozur ENA is a special formulated blend of sodium persulfate, which provides chemical oxidation via a sulfate radical, and PermeOx Plus, which enhances bioremediation through a slow-release of oxygen.
Sodium Persulfate is a stable, highly soluble, crystalline material, which upon activation generates the sulfate radical, a very strong oxidant, capable of oxidizing a broad range of recalcitrant compounds. Laboratory studies in water have shown favorable destruction of chlorinated solvents, polyaromatic hydrocarbons, and petroleum hydrocarbons.
PermeOx® Plus is a specially designed form of calcium peroxide that releases sufficient oxygen over an extended time period to enhance the biodegradation of contaminants in soil and groundwater. Based on extensive laboratory studies, PermeOx® Plus releases levels of oxygen much greater than other solid peroxygen products and can provide a useful and cost-effective mechanism for enhancing the aerobic bioremediation of contaminants.
Klozur ENA combines the strong oxidizers of sodium persulfate with the slow-release oxygen of PermeOx Plus. Once applied to soil or groundwater, the PermeOx releases peroxide. The peroxide lowers the soil oxygen demand of the surrounding matrix creating an environment conducive to chemical oxidation. The PermeOx also activates the sodium persulfate, which produces sulfate radicals capable of recalcitrant compound oxidation. Finally, the PermeOx produces a constant, long-lasting supply of oxygen which aids in natural bioremediation. As the system begins to change from aerobic to anaerobic after an extended period of time, the remaining sulfates are utilized by the sulfate bacteria, which further assist in contaminant bioremediation.
Klozur ENA has already been used to successfully remediate a variety of contaminants and ultimately reduce remedial costs compared with older methods. Klozur ENA has been used in western Texas, northern California, and Illinois. In western Texas, it was used to successfully remediate Benzene from a concentration of approximately five milligrams per liter to below the laboratory detection limit over a four-month period.
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