KLOZUR® CR
Klozur® CR is the newest environmental product manufactured by FMC, which is based on a combination of research and development by ChemRem in alliance with FMC, remediation consultants, and contractors. CR (representing “Combined Remedy”) is a powder consisting of Klozur® sodium persulfate and PermeOx® Plus which allows Klozur® CR to provide self-activated persulfate oxidation without any additional chemicals, or mixing or labor and long term oxygen release up to one year. It is used for the following remediation needs:
1) conduct rapid, cost-effective in-situ or ex-situ chemical oxidation of soil and groundwater
2) promote aerobic bioremediation in, and hydraulically down gradient of, the area of the CR application
The powder is applied directly to the soil, mixed into soil, or converted into aqueous slurry and distributed through the subsurface using direct push rods or wells. The field-tested formulation promotes activation of the persulfate anion to the sulfate free radical (SO4*) without additional mixing and labor. PermeOx® Plus decomposes in contact with moisture to produce alkalinity and hydrogen peroxide with calcium hydroxide as a byproduct. The pH will rise and when it exceeds approximately 10.0 the persulfate anions convert to the free radical state. The hydrogen peroxide will degrade into oxygen at pH greater than 7.
Besides decomposition of target organic compound(s), one can expect some degree of natural organic matter decomposition. The by-products of the decomposition and other reactions are typically conducive to enhanced bioremediation: sulfate, oxygen, calcium, water and molecular fragments of molecules otherwise too large, complex or recalcitrant to be readily assimilated via natural biological action. These by-products can provide a short-term boost to increasing microbial assimilative capacity. To extend the period of enhanced aerobic biodegradation post CR application, the timed-release oxygen product PermeOx® Plus can be used.
Base or high pH activation, invented by FMC, produces conditions conducive to the destruction of a very wide range of contaminants. When you purchase Klozur® CR you are granted the right to use FMC’s patent pending activation chemistry based on high pH. FMC only asks that you use Klozur® branded products when utilizing FMC intellectual property.
The 45-pound (6.5 gallons) plastic vented pales are typically shipped in pallets of 36 pales.
Click for Klozur CR Technical Brochure and Klozur CR MSDS .
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