Bioremediation is an established technology that uses microscopic organisms to break down hazardous wastes into harmless natural products. Bioremediation has been successfully demonstrated in the field to be effective in removing many organic compounds from contaminated soils, water and porous surfaces.

Bio-Slurry Injection - Heterotrophic Processes

The object of the bio-slurry injection is to aggressively target the unsaturated capillary fringe areas throughout the site with high concentrations of gram-negative heterotrophic bacteria. To support the bacterial degradation of the petroleum distillates two oxygen sources are used to generate terminal electron acceptors suitable for the metabolisms of the cultures delivered to the site. Nitrogen and phosphorus containing materials are introduced to support the growth and respiration of the cultures delivered into the soils and groundwater of the site. The site's hydrogeology and subsurface hydrology are modified through high-pressure air injection prior to and following introduction of subsurface remedial materials.

Soil Flushing - In-Situ

The biological remediation of the unsaturated zone is accomplished rapidly by mounding the groundwater through the zone, delivering nutrients, nitrification inhibitors, readily available nutrients and a terminal electron acceptor in predetermined stoichiometrically correct quantities to insure that the aerobic process is maintained. Once allowed to recede to its initial level, the groundwater may be readily treated by way of the oxygen maintenance program. The groundwater following the preliminary treatment of the impacted soils will facilitate the accelerated natural attenuation.

Back to Remedial Services