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ISCO In Situ Chemical Oxidation

Looking for a slow release ISCO option? Modulated TersOx™ Liquid is formulated to slowly generate hydroxyl free radicals that exhausts oxygen demand, eliminates high contaminant inhibition and enhances bioremediation performance by reducing lag times and directs biological activity towards contaminant breakdown.  

In Situ Chemical Oxidation

Modulated TersOx™ Liquid offers potency, stability and persistence of biological polishing. TersOx™ Modulator will slowly and steadily activate TersOx™ Liquid  to oxidize contaminants.  Our slow-release formulation minimizes the amount of heat and pressure that are generated, and it is not pH sensitive like conventional Fenton reaction-based systems.  This powerful and non-selective preliminary reactions can oxidize a wide variety of organic contaminants into non-regulated compounds, yet it is extremely stable to be blended as one product for subsurface injection, above ground for safety, for long-lasting effects below ground, and to allow contact where needed. 

The performance of standard oxygen releasing TersOx™ and TersOx Nutrients following a Modulated TersOx™ Liquid event significantly improves, allowing overall project goal to be met sooner and permanently, while keeping costs low. Up-to-date research shows this one-two punch approach give is much more efficient: by targeting just sufficient mass discharge drops, the sum of both steps removes more contaminant mass at less cost than ISCO or Bio as stand-alone approaches.

In Short: TersOx™ family of products are specially formulated to give you more bang for your buck.


Modulated TersOx™ Liquid  offers the following advantages:

  • Formulated for above-ground blending as one product for subsurface injection at 6% or less to allow contact where needed.
  • No need for other activators like iron after the fact.
  • The low dose application mitigates waste of oxidants that is common with traditional Fenton’s applications at 12% -15% or more.
  • Excess pressure and temperature buildup are controlled which mitigates desorption of contaminants from the matrix.
  • Slower caloric release when compared to traditional Fenton's Reagent.
  • Has a significant longevity of at least three months which minimizes the need for expensive re-application mobilization costs.  This is based on the elevation and decay curves for ORP over time.
  • Ideal reagent for in situ surfactant and chemical oxidant flushing for complete remediation of contaminants (Tersus assigned U.S. Patent Nos. 6,913,419 B2; 7,021,863 B2; 7,364,386 B2; 7,708,496 B2; and 7,677,836 B2).
  • Permanent, minimizes rebound.

Learn More

Is Modulated TersOx™ Liquid the right solution for your contamination concern? Have questions or want to explore some ideas?   Contact Us to learn how we can put together a money saving program to get your project over the finish line. If you have a project and need a remediation solution now, request a site evaluation by supplying us with the appropriate site information at this link.  Our skill and experience implementing in situ remediation technologies creates high-value solutions to complex groundwater and soil contamination and related issues at a lower cost. Tersus welcomes the opportunity to work with you and your team to help you successfully plan and execute your next project.