Former Dry Cleaning Facility - 2012 - ZELE, Belgium

  • Site : former dry cleaning facility

  • Surface : 3500 m² - 70% DNAPL

  • Contaminants : PCE - DNAPL

  • Geology : fine sand - clay lenses

  • Site challenges : stratigraphy 2 zones - deep (14 m) – large DNAPL mass – center town

  • Pilot to evaluate effectiveness of 'Catalyzed Hydrogen Peroxide' injections - CHP

  • Full scale:
         
    174 fixed injectors at 5-m spacing
         122 vents
         157 m3 of 50 % H2O2 injected
          ca.6 months in 3 phases - daily 'real time' monitoring
         Goals were met : No NAPL, PID<50 ppm
         Remediation goals were obtained

  • Plume & residual source : anaerobic biological remediation – CAP18(-ME)® oil