Case Study - Chlorinated solvents bioremediation

BIOREMEDIATION STUDY FOR THE REMOVAL OF CHLORINATED SOLVENTS FROM AN ACQUIFER

Matrix

Groundwater

Contaminants

Chlorinated hydrocarbons:

  • Tetrachloroethilene PCE
  • Trichloroethilene TCE,
  • 1,1 Dichloroethene
  • Trichloromethane
  • Vinyl chloride
  • cis-1,2 -Dichloroethene
  • 1,2-Dichloropropane
Proposed Approach

Reclamation through bioremediation

Remedial System

Contaminants were chemically reduced by a mixture of electron donor agents applied to the matrix

A microcosm test  set up at Biosearch Ambiente’s laboratory allowed the determination of  the feasibility of a bioremediation approach on a chlorinated solvent impacted groundwater.

Electron donors, as nutrients for the autochthonous microbes, were added to the contaminated water and was able to stimulate the pollutants degradation.

Results from the test show contaminants degradation in the groundwater sample after the micro and macro nutrient mixture was added.

The negative control, represented by groundwater without amendments, shows little or no detoxification.