Summary
The in-situ removal of volatile chemicals including benzene and vinyl chloride from both the ground and groundwater.
The gaseous contaminants were captured over a large area and destroyed using advanced oxidation equipment.
The extensive installation removed the contaminants in accordance with regulatory requirements, without affecting the public.
Works
- Design of remediation plant in line with information and brief from consultant.
- Project management and liaison.
- Manufacture, installation and commissioning of ATEX-compliant remediation equipment.
- Operation and maintenance of equipment.
- Provision of Environmental Permit and Environment Agency liaison.
Synopsis
A former industrial chemical manufacturing site was to be redeveloped for industrial and domestic usage. Soil and groundwater had suffered extensive contamination from volatile organic compounds (including benzene and vinyl chloride) over a treatment area of some 20,000 square metres.
TRM constructed an extensive installation of surface laid collection pipework overlain by a purpose built impermeable barrier. The groundwater was sparged under a predetermined regime, which liberated the volatile compounds for subsequent collection and destruction with an automated catalytic oxidiser which was optimised to operate in the auto-therm range.
This specified operating regime achieved efficient and effective remediation of the soil and groundwater. The entire system operated automatically by PLC with remote sensing, data acquisition and remote telemetry.
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Case study
