In Situ Chemical Technology
EUREMTECH is skilled & experienced for any commercial chemical reagent.
Reagent Selection for Each Specific Case
PEROXIDE = CATALYZED HYDROGEN PEROXIDE (CHP)
the most powerful - inexpensive - perfectly adapted to NAPL
ACTIVATED SODIUM PERSULFATE
for high buffer soil capacity - high alkalinity - expensive - need an activator (NaOH).
PERMANGANATE
mass transfer – expensive - not adapted to NAPL - migration in clay : no "rebound"
OZON
expensive - specific equipment - poor mass transfer - no geological heterogeneity.
Determine injection method
Geology & Hydrogeology conditions
Selected reagent & Natural Chemistry
FOCUS ON MONITORING
drives project remediation achievement
In Situ “Extraction simple”
PSEUDO-ACTIVE TECHNOLOGIES
pollution released matrix ONLY
viscosity, sorption, mass transfer = Minor part of the contaminant mass recovery
In Situ Injection
ACTIVE TECHNOLOGIES
address pollution DIRECTLY within the matrix = Track down & destroy (ISCO)
- Fast technology (< 1 year)
- User-friendly field operations
- No Operating & Maintenance costs
Scope of Application
- Wide range of organic compounds
- Source zone remediation : NAPL (CHP Process)
- Effectiveness > 90% of contaminant mass removal
- Each chemical reagent has its own limitations
- Contaminants : high oxidizing / reducible properties
- Soil permeability
- Geological heterogeneity
- Making contact between the pollutant and reagent
- Defining the right amount of reagent to be used to achieve the targeted objectives
- Safe injection operations : Health, Environment, geotechnical subsurface
- A powerful technology to achieve rapid results
- No permanent treatment plant in the field: transient injection rigs - trailer
- Managing the time of the remediation
- Looks easy to implement...Actually, it requires A GREAT DEAL OF EXPERIENCE
NAPL contamination source addressed by CHP
- Competitive cost in comparison to excavation
- Easy to implement
- Fast remediation & very efficient
- Treatment duration < 1 year
- Reduction mass of contaminant > 90 %
- Our process is very safe - 0 recorded accident
- Fleet of top quality equipment : trailor, pilot suitcase, injection head...
GCI© process - Patented
- "Injection" well & "Vent" well grid array
- Patented injection head : peroxide + catalyst
- Targeted injection and distribution
- Heat resistance equipment
- « Sweep » injection protocol
- Real-time process monitoring
