Loureiro evaluated the potential for anaerobic in situ bioremediation to treat a recalcitrant tetrachloroethene (PCE) hotspot in fractured bedrock at the Eastern Surplus Superfund Site in Meddybemps ME. The goal was to implement a remedy that was more cost-effective than the existing pump and treat system at the site. Treatability testing was performed by Loureiro to determine:
- Reagent requirements
- The potential for creating metals mobility
- Remedial design parameters
The treatability test results demonstrated:
- Site groundwater required biostimulation (nutrients, trace minerals, electron donor) and bioaugmentation to effectively treat the PCE to ethene in a timely and cost-effective manner.
- There was minimal potential for metals mobility
The treatability testing results were used in the design of the pilot / full-scale application at the site by Loureiro. The field implementation was successful and lead to the Maine Department of Environmental Protection to decommission the pump and treat containment system.
click here for A presentation of the treatability testing through full-scale application results
