EHC® Plus is a combination of EHC® Reagent plus powdered activated carbon (PAC). This combined remedy approach can be used for the treatment of groundwater and saturated soil impacted by persistent halogenated compounds, including chlorinated solvents, pesticides, and organic explosives.
EHC® Plus is a synergistic mixture that stimulates both abiotic and biotic de-chlorination mechanisms and provides an adsorption pathway to help to achieve low remedial goals for difficult to treat contaminants.
Typical Applications
- Permeable Reactive Barriers (PRBs) for Plume Control
- Source Areas
- Plume Treatment
Benefits at a glance
- Multiple and dynamic reaction pathways → abiotic, biotic, and adsorption
- Abiotic and biotic pathways destroy contaminants including those with lower adsorption affinity for activated carbon, such as vinyl chloride, chloroethanes, and dichloroethanes
- Synergistic organic carbon and ZVI mixture creates a reactive halo in the downgradient zone by the volatile fatty acids and soluble iron corrosion products
- Solid PAC stays in the injection zone and does not migrate with groundwater flow cutting off contaminant plumes and helping to achieve low remedial goals