Background
As part of the Grand Paris development program for the new Metro Line 15, Eiffage required a rapid and reliable solution for soil and groundwater remediation in a highly constrained urban environment.
Challenge
The remediation site, located in the dense Paris suburbs, presented several major constraints:
- Night-time operations only due to site location restrictions.
- Very limited space for trucks and equipment.
- Challenging ground conditions, including narrow working areas and mud.
The solution provided needed to provide high flow capacity and robust handling of both contaminated groundwater and soil leachate.
Solution
Puragen supplied a complete mobile filtration installation, consisting of 4 Clean-Flo® AquaSorber®22 units, each capable of up to 100 m³/h
- 2× filters with granular activated carbon (GAC – CC50R)
- 2× filters for sand filtration
- Deployment supported by our REACT-Sys® spent carbon reactivation service
Why AquaSorber® 22-100 for the project?
- High flow capacity per filter (100 m³/h)
- Flexibility to combine GAC and sand filtration in a modular setup
- Compatibility with our REACT-Sys® reactivation program, reducing overall lifecycle cost
- Proven effectiveness for soil and groundwater remediation projects
Results
Remediation activities commenced on schedule despite severe site constraints
- Contaminated water streams treated efficiently with a combination of sand and GAC filtration
- Downtime was reduced by using mobile filters with rapid exchange capability
- The site benefitted from an integrated solution covering supply, operation, and spent carbon recovery.
