Penn E&R was contracted to perform and evaluate the in-situ biodegradation of chlorinated volatile organic compounds in ground water at a former manufacturing facility in southeastern Pennsylvania. A pump-and-treat system and two-phase vapor extraction system were installed at the site in 1982 and 1999, respectively; however, Penn E&R has witnessed cutting-edge results since the implementation of a bioaugmentation/ biostimulation program in 2014. This program has proven to be particularly innovative due to the use of emulsified vegetable oil (EVO) and nutrients (EOS® Pro), Dehalococcoides mccartyi and enzymes BAC-9, and more recently the use of a specific bio-manufactured microbe, called Pseudonocardia dioxanivorans CB1190, to remediate chlorinated solvents and 1,4-Dioxane.
KEY PROJECT FEATURES:
- Soil screening using a Membrane Interface Probe
- Hydrogeologic investigation including pumping tests
- Well installation and sampling for two contaminant plumes
- Geochemical and biological parameter characterization sampling
- Injection of EVO and nutrients (EOS® Pro)
- Bioaugmentation with Dehalococcoides mccartyi and BAC-9
- Biostimulation with Pseudonocardia dioxanivorans CB1190
- Project management
- Data analysis and reporting
- Report development