Bioremediation Technologies

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ThermaCycle™ is ERG’s next‑generation low to mid temperature ISTR platform—a turnkey, closed‑loop groundwater recirculation system that supercharges subsurface clean‑ups. Housed in a rugged 8.5 × 12 ft all‑metal enclosure with crane‑lift rigging, each skid ships fully piped, wired, and factory‑tested. Allen‑Bradley PLCs running on an Ignition® SCADA backbone deliver real‑time telemetry, remote control, and automated alarms, while magnetic flow meters, pressure/temperature transducers, and onboard data logging ensure precision you can trust. 

Built for versatility, ThermaCycle™ can lift groundwater temperatures by up to 170 °F for aggressive DNAPL mobilization or dial back to a 30–40 °F boost for heat‑enhanced bioremediation (HEBR). The platform scales effortlessly—from 5–20 gpm at high‑delta (105 F temperature delta) operations for hydrolysis or free‑product recovery, to 40 gpm at lower deltas for large‑footprint bioremediation campaigns targeting heat enhanced biodegradation. Inline dosing ports accommodate surfactants, co‑solvents, electron donors, and nutrients, enabling seamless transitions between chemical, thermal, and bio‑driven strategies. Fully automated, rapidly deployable, and engineered for maximum uptime, ThermaCycle™ delivers faster clean‑ups, lower risk, and measurable results across the full spectrum of in‑situ thermal remediation.

  The Group offers closed loop automated recirculation systems that can optimize nutrients, groundwater geochemistry, and DO levels prior to reinjection, optimizing groundwater conditions as the system promotes increased contact and artificially induced transport mechanisms.

 The programmable system can be modified throughout the operation based on ongoing performance data, which will optimize the supply of nutrient and amendment distribution within the target treatment zone and allows targeting of zones that may have higher or persistent concentrations of contaminants. The programmable system is capable of pulse-injection of the substrate to prevent injection well biofouling, and can be utilized to make ongoing pH adjustments. The recirculation loop also has the added benefit of providing a degree of hydraulic plume control to protect downgradient receptors and limit further LNAPL, DNAPL, and aqueous phase petroleum hydrocarbon migration. 

 Our team offers turnkey services for the implementation of these systems, including; additional microcosm studies, custom equipment designs, through implementation and project close out. The Group will guide you through the entire process, and ensure your petroleum impacted Sites meet project goals in a timely and cost effective manner.  

 The Group's automated/programmable closed-loop anaerobic groundwater recirculation systems  are designed to extract, and reinject the extracted groundwater after it is amended with a mixture of electron donor and nutrients and augmentation cultures (when necessitated), optimizing anaerobic groundwater conditions as the system promotes increased contact and artificially induced transport mechanisms. This mixture of electron donor (i.e. substrate) and nutrients are required for stimulation of microorganisms present in the aquifer. 

The programmable system can be modified throughout the operation based on ongoing performance data, which will optimize the supply of electron donor distribution within the target treatment zone and allows targeting of zones that may have higher or persistent concentrations of contaminants. The programmable system is capable of pulse-injection of the substrate to prevent injection well biofouling, and can be utilized to make ongoing pH adjustments. The recirculation loop also has the added benefit of providing a degree of hydraulic plume control to protect downgradient receptors and limit further DNAPL, and aqueous phase CVOC migration. 

 Our team offers turnkey services for the implementation of these systems, including; additional microcosm studies, custom equipment designs, through implementation and project close out. The Group will guide you through the entire process, and ensure your chlorinated solvent impacted Sites meet project goals in a timely and cost effective manner.  

 Slug injections, sometimes offer the simplest most cost effective solution for low concentration plumes in suitable hydrogeologic conditions.  Our team of knowledgeable experts can help design and implement the best approach to maximize efficacy of amendment and augmentation injections.