The Klozur® persulfate portfolio consists of several high quality, environmental grade persulfate products used for in situ chemical oxidation (ISCO) of contaminants in soil and groundwater.

Power. Stability. Versatility.

Our proven patented activation methods include alkaline (high pH), chelated metals, hydrogen peroxide, heat, and zero valent iron.

Activated Klozur persulfate creates a multi-radical attack providing greater oxidation power capable of treating common and the most recalcitrant compounds alike.

Klozur’s stability allows it to be better distributed in the subsurface providing a greater radius of influence and allowing more time to make contact and degrade contaminants.

With a variety of activation and delivery methods, the versatility of the Klozur portfolio is unmatched, allowing it to be applied at a wide variety of site conditions.

With production capabilities in New York state and Europe, Evonik is one of the world’s largest producers of persulfates and the only persulfate manufacturer in North America. Having over 80 years of persulfate manufacturing experience, Evonik’s team has developed the standards for persulfate application guidance, safety and handling, and storage.

When activated with Evonik’s patented technologies, Klozur persulfates form powerful oxidative and reductive radicals that effectively treat a wide range of contaminants, including chlorinated solvents, petroleum hydrocarbons, and PAH’s.

A highly soluble, easy-to-use, environmental grade sodium persulfate. Over the past decade, Klozur SP has established a long track record of success and provides an unmatched combination of oxidative power and control that can be delivered both safely and cost effectively.

Klozur SP is well suited for:

  • Source areas
  • Highly contaminated soils
  • Recalcitrant compounds

An all-in-one product containing Klozur SP and carefully selected activator reagents, Klozur One can be completely dissolved and prepared using a single injection system. Klozur One simplifies and increases the convenience of delivering Klozur activated persulfate in field applications.

Klozur One is well suited for:

  • Most common contaminants of concern
  • Source areas and plumes

An extended release, environmental grade potassium persulfate, Klozur KP has the same oxidative power of sodium persulfate, but a much lower solubility - giving it the capability to sustain a low concentration of persulfate in the subsurface.

 Klozur KP is well suited for:

  • Permeable reactive barriers (PRBs)
  • Low permeable solids
  • Recalcitrant compounds

A blend of Klozur SP and Permeox Ultra engineered calcium peroxide. This product provides a combined remedy of alkaline activated persulfate and bioremediation in a single application. In addition, Klozur CR is self-activating; meaning no mixing of chemicals is needed.

Klozur CR is well suited for:

  • Low to moderate levels of contamination
  • Source zones
  • Down-gradient plumes

Leading the way in

Soil & Groundwater Remediation

We continue to develop and offer several remediation technologies including ISCO, ISCR, bioremediation, metals treatment and stabilization. Learn more about our diverse portfolio of proven remediation technologies.
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