ecoSPEARS: Additive Desorption System for Extracting Halogenated Contaminants from Impacted Soils and Dewatered Sediments

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Additive Desorption System (ADS) is an ex-situ remediation procedure for treating Contaminants of Concern (COC)-impacted soils and dewatered sediments.

ADS operates by loading soils or dewatered sediments onto a conveyer-belt which then loads the material into a mechanical hopper unit. Once the material is added to the hopper, the unit is filled with a proprietary treatment reagent and the blending mechanism is initiated. During the blending process, organic toxins that were sorbed to impacted media transition into the dissolved phase, effectively capturing the COCs in the treatment reagent. The slurry then undergoes a phase separation to remove treated solids from liquid reagent. The reagent, now containing COCs in dissolved phase, is pumped into a separate containment tank and the treated soil is unloaded for drying. Multiple treatment cycles may be needed depending on contamination levels of the toxins and the final target concentrations. Following confirmation sampling to demonstrate the treated material meets acceptance criteria for beneficial reuse as clean fill, it may be placed back into the environment.

As the final step in the process, the COC-laden reagent is then treated using ecoSPEARS’ Reductive Integrated Dehalogenation System (RIDS), a second proprietary treatment process that is capable of destroying common halogenated COCs at the molecular level, including PCBs, polychlorinated dibenzo-ρ-dioxins/furans, pesticides, and polybrominated diphenyl ethers. The RIDS chemical destruction process thereby eliminates expensive transport and disposal fees (and associated impacts to communities and infrastructure), obviates potential future liabilities, and offers a true end point in the seemingly never-ending “cradle-to-grave” life cycle for managing and remediating these recalcitrant COCs.

ADS allow stakeholders of COC-impacted sites, soils, and/or dewatered sediments to expedite on-site remediation at scale to any applicable site. Potential return on investment (ROI) and life-cycle cost advantages are expected to mitigate remedial costs and risks associated with;

1) Operating costs and use of traditional "dig & haul" (D&H) machinery and technicians;
2) Potential field worker exposure to COC-impacted material;
3) Potential costs and liabilities should COC-impacted material leaech into surrounding soils and groundwater, and;
4) Acquiring, transporting, and implementing clean fill.

Given these advantages, ecoSPEARS estimates this process to be 33% more efficient than traditional remediation efforts and methods for COC-impacted soils and dewatered sediments. Likewise, applicable sites where this benefit may be reaped include numerous national Brownfields sites whereupon completion of remediation work allows for the unlocking of potential economic land value and redevelopment, further contributing to local real estate, workforce, and economy.

ecoSPEARS has seen previous success on multiple bench-scale tests with ADS with results evaluated and verified by independent laboratories. ADS provides a cost-effective and truly sustainable method to traditional environmental remediation of COC-impacted soils and dewatered sediments, while mitigating risks and costs to clients and communities.

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  • ABOUT THE ENTRANT

  • Name:
    Samuel Johnson
  • Type of entry:
    team
    Team members:
    Sergie A. Albino - CEO/President
    Raphael I. Doromal - Executive Vice President
    John Omana - VP Operations
    Dr. Phil Maloney - Principal Scientist
    Samuel Johnson - Business Analyst
  • Profession:
    Business Owner/Manager
  • Number of times previously entering contest:
    2
  • Samuel is inspired by:
    Going global on clean, sustainable resources and ensuring that every human life has the ability access to free, clean water.
  • Patent status:
    patented