EHC® technology describes a family of remediation products used for the in situ treatment of groundwater and saturated soil impacted by heavy metals and persistent organic compounds such as chlorinated solvents, pesticides and energetics.
An overview of the different properties, mechanisms, and key attributes of our various reductive technologies
Using US EPA criteria, Maul Foster & Alongi, Inc. reviewed four potential green remediation technologies (EHC® Reagent, emulsified oil, electrical resistive heating, and pump & treat) for an active cl…
Guidelines for EHC slurry preparation and backfill, PRB, injection applications.
Baselines sampling recommendations for critical and non-critical parameters prior to the injection of EHC Reagent.
Several core examination methods which could be used to evaluate reagent placement after injection.
Commercial sources of fermentable carbon will enhance the activity of hydrogen-utilizing microbes. However, EHC contains zero valent iron (ZVI) providing in situ chemical reduction (ISCR) reactions, a…
This document summarizes our experience treating organochlorine pesticides (OCPs) in soil and groundwater using Daramend® and EHC® reagents.
Extensive bench testing of EHC for treatment of 1,2 DCA has been performed confirming its superior efficiency compared to ZVI alone.
Overview of contaminants treated
Success of most in situ remedial strategies is largely based on effective subsurface distribution of reagents, which may be particularly challenging when working with ZVI based products due to their g…
This presentation presents biological and in situ chemical processes, presents field comparisons of the biotic approach (ERD) to the ISCR approach, and demonstrates how ISCR enhances biological proces…
Treatment of heavy metals in soil and groundwater is based on their conversion from soluble to insoluble forms through promotion of precipitation, coprecipitation, and adsorption reactions. These reac…
Brianna Desjardins and Brant Smith discuss the bench scale tests commonly conducted by PeroxyChem’s Environmental Solutions Laboratory for EHC® Reagent, ELS™ Microemulsion, Klozur® Persulfate, MetaFix…