Posts

1,1,1-TCA Bioremediation at an Industrial Site in Dayton, Ohio

Fast, Economical Site Cleanup

CL-Out bioremediation reduced the concentration of 1,1,1-TCA in ground water at a steel manufacturing facility in Dayton, Ohio. Following implementation of ozone treatment and high vacuum extraction for more than 2 years, the contaminant concentrations remained high.  Bioaugmentation followed up on these treatments and reduced the 1,1,1-TCA concentration very quickly.  Within 30 days of bioaugmentation, the source area contaminant concentration decreased by 80%.  After a second application, the concentration decreased from the pre-treatment concentration of 1,100 ug/L to 1.4 ug/L.  The bioaugmentation effect was observed as far as 250 feet downgradient where the concentrations decreased by more than 50%.  Click here for the full case study.

 

 

TCE and 1,1,1-TCA Bioremediation at Indiana Industrial Site

Fast and Economical Site Remediation

TCE and 1,1,1-TCA bioremediation by CL-Out organisms reduced contaminant concentrations  in ground water under a drum storage area at a Frankfort,  Indiana industrial site.  After  three  monthly applications  of CL-Out microbes, the in situ treatment reduced total maximum CVOC concentrations from 102 mg/L to 3 mg/L in less than 6 months. Click here to view the complete case study.

Aerobic Cometabolism of Chlorinated Solvents

CL-Out® aerobic cometabolism successfully remediated solvents in ground water at an operating industrial site in central New Jersey.  The manufacturing and plating facility had historical petroleum and solvent releases.

Chlorinated solvents found in the ground water in two plumes covered a combined area of about one half acre.  A mix of chlorinated solvents including 1,1,1-TCA, 1,1-DCE and PCE in low concentrations icontaminated the ground water.    The remediation goal was to reduce the mass of contamination in the ground water plume to prevent mitigate off-site risks.

After the CL-Out aerobic cometabolism, ground water concentrations in all monitoring wells decreased by more than 80%, which was sufficient to meet the remediation standards.  Click here to download a complete case study.

Cometabolism of 1,1,1-TCA in a Mixed Solvent Plume

One of the benefits of CL-Out cometabolism is that the enzymes produced by the Pseudomonas sp. organisms convert a wide range of organic chemicals into organic acids that can be metabolized.  The aggressive application of CL-Out organisms to soil and ground water at a chemical mixing company removed the source of ground water contamination by chloroethanes and chloroethenes,  including PCE and 1,1,1-TCA.  The aerobic cometabolism of these compounds achieved MCLs in less than 6 months.  Click here to view the case study Mixed Solvent Plume Cometabolism by CL-Out