​More than mopping up. ​

/    Back diffusion
//   Tailing
///  Longevity
//// Rebound

CRP controls the release of active reagents slowly, over prolonged periods of time and sustains in situ treatments and long-term effectiveness.

Four major types of challenges in sustainable in-situ remediation of recalcitrant organic pollutants in groundwater: (a) back diffusion of pollutants from fine grained aquifer material to groundwater, (b) contaminant level renders long tailing, (c) contaminant concentration rebound after treatment stops, and (d) treatment reagent has diminishing longevity.

Retreatment is generally accepted as a best practice in ISCO projects. But the benefits of controlled release oxidants have been proven to yield many different positive outcomes with the wide range of different environmental and pollutant factors including:
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• A continuous degrading of contaminants that slowly back diffuse into the groundwater from low permeability matrices.

• Reducing treatment spiking, extended tailings and eventual diminished kinetic longevity.

 

• Avoid the plateauing of activated persulfate when treating groundwater contaminated by 1,4-dioxane.

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• Controlled release permanganate can significantly reduce non-selective consumption and self-loss of oxidants, resulting in a 1.7-fold increase in oxidant efficiency.

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• Release kinetic optimization offers impressive advantages when controlling reactive reagent release in the subsurface. 

Eliminating the Rebound

Over time, contaminants change physical states.

RemRx® CRP delivers a sustained oxidant with a single application
​that continually treats dissolved phase contaminants.

What Causes Rebounding?

Contaminant mass can be dissolved in groundwater, sorbed onto solids in the aquifer sediment and as a separate non-aqueous base.

The contaminant concentrations are the result of the dynamic combination of the aquifers environment, solubility and the groundwaters pH.

Oxidant and contaminant reaction kinetics are faster in the dissolved phase thus sorbed contaminants are not as efficiently treated. Rebounding occurs when contaminant desorb and partition back into the aqueous phase.

Learn more about these physical state changes in our webinar series below.

Webinar

The mitigation of contaminant rebounding is critical to preventing delays in remediation projects. Learn about our research into this groundbreaking innovation.

Learn more about

Rebounding

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Read how we approach single treatment

Case Summary

Case Summary

Petroleum Hydrocarbon (VOCs)
Treatment at a Former Gas Station

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Available Download

C#41519_VOCs_UST.pdf
File Size:	1269 kb
File Type:	pdf

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Take a deeper dive into 

About Rebounding

Request a free

Site ​Evaluation

Let's have a conversation about

Partnering with Us

Read how we approach single treatment

Case Summary

Mitigate rebounding with controlled release.

Typical ISCO

Multiple Treatments

Rebounding is a common issue during in situ remediation. This returning of elevated contaminant levels following a treatment is currently addressed through repeat treatments/injections - driving up cost, delaying time to completion, and prolonging exposure.

RemRx CRP ISCO

A Single Treatment

Our controlled release ISCO provides a sustained delivery of oxidants into the subsurface continually degrading contaminants and mitigating rebound.

Strategic Teaming Opportunities

Contact us for information about our pilot programs.

NOW TIME IS ON YOUR SIDE

About
​Rebounding

Site
​Evaluations

Partnering
​with us

Case
​Summary

The benefits of RemRx®CRP

Reduce
​Rebound

Versatile
​Tunable

Safer
​Handling

Designed to save you time

Quicker
​Clean Up

Lower
​Project
​Costs

..and money.

The benefits of RemRx®CRP

Reduce Rebounding

Versatile & Tunable

Quicker Clean Up

Safer Handling

Lower Project Costs

Designed to save you time.

Reduce the rebounding with an extended-release.

Extended-release means RemRx®CRP delivers a sustained release and a controlled dosage. 

Cost of Reapplication

Rebounding is the return of contaminant levels following treatment, and is currently remedied by repeated treatments – driving up cost, delaying time to completion, and prolonging exposure opportunities.

A Sustained Delivery

A controlled release ISCO provides a sustained delivery of oxidants into the subsurface continually degrading contaminants and mitigating rebound.

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RemRx® CRP solves this rebounding problem through the delivery of active and sustained reaction kinetics during both aqueous and dissolved hydraulic phases.

Learn More About Rebounding

We invented RemRx®.

An earth-friendly, controlled release product that mitigates rebounding, lowers project costs and speeds site closures. 

​Faster site closure means more backlogged contaminated sites can begin getting cleaned up.

Request a Site Evaluation

Reduce Rebounding

Lower Project Costs

Versatile & Tunable

Quicker Clean Up

Safer Handling

ISCO and Rebounding

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Contact Us for more information

New ISCO amendments for surface and groundwater remediation.   

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Controlled Release Polymers (CRP) treats environmental contaminants over longer periods of time.
​
​RemRxCRP® addresses rebounding to shorten clean up times and lower overall project costs

This patented technology addresses a broad range of commonly found contaminants, typically by-products of industrial manufacturing, cleaning solvents, and agricultural run-off.

Rebounding does not have to be a routine part of your game.   

CHANGE YOUR GAME