Zero-Valent Iron

  • Easy to apply
  • Disperse widely in the subsurface aquifers
  • Excellent reactivity
  • Extended longevity

REGENESIS offers S-MicroZVI™, an advanced zero-valent iron (ZVI) product proven to accomplish In Situ Chemical Reduction (ISCR) of contaminants within the subsurface environment. S-MicroZVI is delivered as a colloidal suspension 40% ZVI by weight in glycerol with a particle size of less than 5 microns. S-MicroZVI is manufactured using a state-of-the-art sulfidation process resulting in a particle coating which increases activation toward specific contaminants and extends performance longevity. S-MicroZVI destroys contaminants abiotically and applied to stimulate ISCR-enhanced bioremediation.


sulfidated zvi

ZVI Technical Bulletin: Benefits of Sulfidation


EASY TO APPLY- Micron-scale, zero-valent iron suspended in a colloidal solution allows for easy handling and application on-site.
DISPERSES INTO GROUNDWATER- Micron-size particles flow through soil pores dispersing outward without the need for fracturing or mechanical mixing in the subsurface.
MAXIMUM ISCR ACTIVITY- outperforming commodity iron 30-40 times.
STIMULATES ENHANCED BIOREMEDIATION- Creates an anoxic and highly reducing environment, providing ideal conditions for sequential enhanced anaerobic biodegradation to destroy chlorinated contaminants.
TREATS A WIDE RANGE OF CONTAMINANTS (Range of Treatable Contaminants Guide).

7 Reasons to Consider ISCR to Treat Your Site

iscrThis ebook outlines the benefits of in situ chemical reduction (ISCR), an approach that can be highly effective when designing a remedial strategy. Though in situ chemical reduction has been in use for some time, recent technological advances have improved it as a remedial approach. A proliferation of remedial technologies based on chemical reductants such as ZVI, which is highly effective against chlorinated solvents, some metals, and other contaminants, has been recently developed. REGENESIS has developed the in situ remediation technology S-MicroZVI™, a sulfidated, colloidal suspension of ZVI micro-scale particles less than 5 μm in size that can easily be injected and is chemically reactive in the subsurface.

Want to learn more about the benefits of in situ chemical reduction? Download the eBook here:

Rapidly and Effectively Treat Chlorinated Solvents with ISCR-Enhanced Bioremediation

iscr enhanced bioremediationIn Situ Chemical Reduction (ISCR) enhanced bioremediation is a remediation approach that combines zero valent iron (ZVI), an organic hydrogen donor, and contaminant-degrading microbes to degrade contaminants in soil and groundwater. This approach is most commonly used for chlorinated contaminants including chlorinated ethenes. ISCR-enhanced bioremediation is particularly effective because it stimulates anaerobic biological degradation by rapidly creating a reducing environment favorable to reductive dechlorination. Furthermore, ISCR-enhanced bioremediation may limit the formation of toxic daughter products such as cis-1,2-dichloroethene (cis-DCE) and vinyl chloride (VC) by degrading parent compounds abiotically, or via direct chemical reduction.

Want to learn more about ISCR-enhanced bioremediation? Download the technical bulletin here:

Case Study: ZVI Applied to Remediate DoD Superfund Site

zvi case studyThis case study reviews the remediation of dichloroethane (1,2-DCA) and Trichloroethylene (TCE) using colloidal zero valent iron (ZVI) at Tinker Air Force Base, a major United States Air Force base located in Oklahoma City, Oklahoma. The remediation included an application of emulsified vegetable oil (EVO), an aqueous suspension of colloidal zero valent iron (MicroZVI Precursor), with small amounts of fertilizer and B12. Typically, zero valent iron cannot be applied through well systems. However, due to the small particle size of the zero valent iron, this application was successfully applied through the existing wells. At 3 years post-injection, the contaminant levels remain near zero with the presence of ethene indicating continuous biodegradation.

Effective In Treating a Wide Range of Contaminants

S-MicroZVI is an In Situ Chemical Reduction (ISCR) reagent that promotes the destruction of many organic pollutants and is most commonly used with chlorinated hydrocarbons. It is engineered to provide an optimal source of micro-scale zero valent iron (ZVI) that is both easy to use and delivers enhanced reactivity with the target contaminants via multiple pathways. S-MicroZVI can destroy many chlorinated contaminants through a direct chemical reaction. S-MicroZVI will also stimulate anaerobic biological degradation by rapidly creating a reducing environment that is favorable for reductive dechlorination.

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