Description
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OVERVIEW
Historical spills at an industrial facility in Central Ontario resulted
in groundwater being impacted with chlorinated ethenes including
tetrachloroethylene, trichloroethylene, cis 1,2 dichloroethylene and vinyl
chloride.
The dissolved concentrations of the compounds of concern were:
- PCE (maximum concentration of 14.9 µg/L)
- TCE (maximum concentration of 89,000 µg/L)
- cis 1,2- DCE (maximum concentration of 82,300 µg/L)
- Vinyl chloride (maximum concentration of 1,680 µg/L)
SCOPE OF WORK
Acquired all relevant permits to complete the remediation program.
Designed and optimized an in situ program to maximize
treatment efficiencies.
Implemented a program that minimized capital expenditures and
infrastructure.
THE VERTEX APPROACH
Reductive dechlorination:
Source zone "seeding".
Eight permeable reactive zones.
Injection/placement of reactive compounds:
Reactive material placed using direct placement and soil mixing.
OUTCOME
Successful installation of reactive zones via soil mixing.
Reductive dechlorination conditions created:
- Hydrogen present
- Decrease in redox of greater than 300mV within one week of placement
- pH remained neutral
Companies On This Project
ADVENTUS GROUP
Engineering
