Groundwater remediation

Aromatics, polyaromatics and halogenated hydrocarbons in ground water can be found in lower concentrations dissolved in water diffused over the area, or concentrated as DNAPLs (dens non-aqueous-phase liquids) or LNAPLs (light non-aqueous-phase liquids) creating an enduring source of contaminant supply to the water phase.

 

Groundwater treatment Location Schwarze Pumpe (Germany)

MPPE benefits for meeting challenges in this segment are:

  • Ideal for handling a broad range of compositions
  • Able to cope with unexpected higher influent compositions at no additional costs
  • No iron removal necessary (anaerobic process)
  • Robust, can withstand e.g. salts, humic acids, surfactants, heavy metals, dissolved/suspended solids, high/low pH etc.
  • No sludge formation (as with iron removal and biotreatment), no waste stream
  • Scope for combination with other ground- and process water streams in one unit
  • DNAPL and LNAPL removal by solvent or surfactant enhanced equifer remediation (SEAR)
  • Surfactant or alcohol injection enhances the dissolution of chlorinated hydrocarbons, PAHs, DNAPLs and LNAPLs in water from a few ppm to 10,000 - 50,000 ppm
  • Organics recovered in two weeks equaled eight years of normal pump and treat
  • MPPE proven as the ideal separation technology for these extremely high concentrations in surfactant/alcohol water mixtures
  • Surfactant/solvent consumptions savings as MPPE enables recirculation and recovery

MPPE groundwatertreatment Flensburg (Germany)