Contaminated Site Remediation

We have been working with contaminated site remediation for 35 years and this experience has resulted in the recovery of hundreds of contaminated areas of all sizes and features, in all kind of locations (urban areas, countryside, industrial sites and areas of difficult accessibility).

Our wide experience allows excellent performance in installation, operation, monitoring and maintenance of our environmental remediation systems.

Based on our mathematical modelling and risk analysis, we developed environmental remediation projects, aiming to reach the best results with the lowest implementation and operation costs.

Our services mainly included:

  • Comprehensive site assessment
  • Site remediation, remediation concept
  • Risk analysis
  • Emergency response
  • Hydrogeological study
  • Environmental investigation of soil and groundwater
  • Hydro-geochemical assessment
  • Environmental monitoring plan
  • Acid mine drainage assessment

Remediation techniques used mainly include

  • Bioremediation
  • Soil vapour extraction/air sparging
  • Multi-phase extraction
  • Pump & treat
  • UV water treatment-photo-chemical oxidation
  • Injection of nutrients/oxidants
  • Hydraulic barriers
  • DNAPL removal
  • Waste removal and geotechnical confinement
  • Groundwater treatment plants
  • Mass removal
  • Free phase extraction
  • Chemical exudation
  • Physical barrier – jet grouting
  • Hot spots removal
  • Mathematical groundwater flow and transport model

Main compounds of concern include

  • Chlorinated organic compounds
  • Ethenes
  • Chlorobenzenes
  • Pentachlorophenol
  • Phenols,
  • Cumene DNAPL & LNAPL
  • Methene
  • BTEX
  • MTBE
  • Acid waste

Project locations, all in Brazil, include: Cubatao/SP, Paulina/SP, Maua/SP, Bahia, Minas Gerais, Sao Paulo, Camacari, etc.