Skip to main content

Catalyzed Reductive Bioremediation

EDS AdvancedEDS-Advanced™: The Superior Solution for Anaerobic Bioremediation

Introduction

In the evolving field of in situ remediation, choosing the optimal electron donor is critical to success. While some favor carbohydrate-based substrates, Tersus Environmental’s EDS-Advanced™ stands apart as a next-generation solution that outperforms both traditional carbohydrate-based soluble and emulsified vegetable oil (EVO) electeon donors.  Leveraging a patented transesterification process, EDS-Advanced™ delivers unmatched performance, flexibility, and longevity in anaerobic bioremediation—even under challenging site conditions.

Limitations of Carbohydrate and EVO-Based Substrates

Carbohydrate-based solutions may offer short-term results, but they come with significant drawbacks:

  • Rapid Utilization: Microbes quickly consume carbohydrates, often requiring repeated applications and raising lifecycle costs.
  • Short Lifespan: Carbohydrates lack the sustained electron release needed for complete treatment of persistent contaminants.
  • Operational Challenges: Excessive biomass growth can reduce permeability, clog treatment zones, and complicate site management.

While traditional EVO-based amendments last longer than carbohydrates, they present other issues:

  • Risk of Biofouling: Inefficient breakdown can lead to fouling and diminished treatment performance.
  • Poor Fatty Acid Subsurface Distribution:   A favorable fatty acid diversity seems to be limited to the injection points immediate vicinity (< 5 meters).

The EDS-Advanced™ Advantage

EDS-Advanced™ resolves the limitations of both carbohydrates and EVOs through a patented transesterification process that customizes the electron donor profile for optimal performance.

1. Multi-Stage Electron Donation

EDS-Advanced™ delivers a tailored blend of short-, mid-, and long-chain components for:

  • Immediate stimulation of microbial activity
  • Sustained contaminant degradation over time
  • Reduced need for repeat injections

This staged release ensures more complete treatment with fewer interventions.

2. Enhanced Bioavailability and Distribution

Thanks to its modified structure, EDS-Advanced:

  • Is more soluble and evenly distributed in groundwater
  • Enhances microbial uptake
  • Minimizes the risk of clogging or fouling
  • Reduces rebound and accelerates time-to-closure

3. Robust Temperature Performance

Unlike carbohydrates and EVOs, EDS-Advanced™ maintains efficacy across a wide temperature range. Our heat-enhanced formulation ensures consistent performance even in colder environments, where microbial activity is often suppressed.

4. Lower Lifecycle Costs

Though carbohydrates may seem cost-effective up front, EDS-Advanced™ offers superior ROI through:

  • Fewer injections and site visits
  • Less biomass-related maintenance
  • Improved treatment efficiency and reliability

5. Proven Field Performance

EDS-Advanced™ has been successfully deployed on complex remediation sites involving:

  • Chlorinated solvents
  • Multi-contaminant plumes
  • Low-permeability soils

These real-world applications highlight the versatility and reliability of our technology.

Scientifically Superior

EDS-Advanced™ is grounded in robust science and real innovation:

  • Patented Transesterification Process: Converts plant-based oils into a molecular structure optimized for microbial uptake and sustained release.
  • Customizable Formulations: Tailored solutions for site-specific geochemistry and contaminant profiles.
  • Additive Compatibility: Pairs effectively with zero-valent iron (ZVI), bioaugmentation, PRBs, and thermal remediation technologies.

Environmental and Sustainability Benefits

EDS-Advanced™ also advances environmental stewardship by:

  • Requiring fewer truck rolls and injections
  • Avoiding excessive biomass buildup
  • Preserving natural microbial diversity
  • Using sustainably sourced, renewable inputs

Conclusion

While carbohydrates may provide a quick microbial boost, they fall short in delivering consistent, long-term results. EDS-Advanced™ is the modern solution—engineered for sustained performance, flexible application, and cost-effective site closure. Its multi-stage electron donation, superior bioavailability, and proven field success make it the clear choice for remediation professionals facing tough challenges.

Why settle for outdated solutions when EDS-Advanced™ sets a new standard for anaerobic bioremediation?

Contact us to learn more about EDS-Advanced™ and how it can help your next project succeed.