CL-Out Bioremediation Meets Aggressive Brownfield Redevelopment Plan

Cl-Out bioremediation reduced high concentrations of TCE and daughter compounds in ground water at an industrial site near Newark, New Jersey to meet an aggressive redevelopment schedule. Using a dynamic remediation plan, three applications of CL-Out microbes followed remediation progress sampling during the site preparation for construction. After reducing the maximum CVOC concentrations from over 8,000 ug/L to less than 20 ug/L, the site met the remediation goals and received a No Further Action Letter from NJDEP. For more information and a detailed case study, click here.

Aerobic Cometabolism of Chlorinated Solvents, Central New Jersey Case Study

CL-Out® was successfully used to remediate solvents in ground water at an operating industrial site in central New Jersey.  The the facility was a manufacturing and plating company with historical petroleum and solvent releases.

Chlorinated solvents were found in the ground water in two plumes covering a combined area of about one half acre.  The contaminants were a mix of chlorinated solvents including 1,1,1-TCA, 1,1-DCE and PCE in low concentrations.    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 application, 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.

In-Situ Aerobic Soil and Ground Water Bioremediation of PCE and TCE

CL-Out bioremediation of chlorinated solvents like PCE and TCE is an aerobic cometabolic process.  As these compounds are not directly metabolized under aerobic conditions, the competitive advantage goes to the CL-Out organisms that cometabolize them.  While utilizing a sugar substrate, the CL-Out organisms produce enzymes mono- and dioxygenase that bridge the carbon bond to destabilize the compound.  The solvent is converted to an organic acid that the organism can metabolize.  The benefit is that CL-Out bioremediation can be applied to soils both in situ and ex situ.  Click here for to download a case study.  For further explanation call CL Solutions at 513-284-9540.

CL-Out Bioaugmentation Following ISCO to Remediate TCE

CL-Out bioremediation was used to remediate ground water at an active manufacturing plant in eastern Massachusetts after ISCO treatment of TCE in groundwater reached a limit.  CL-Out was selected because the aquifer was naturally aerobic.  CL-Out cometabolizes TCE and other chlorinated solvents under aerobic conditions by producing an oxygenase enzyme that breaks the carbon to carbon bond.  Under aerobic conditions daughter products such as DCE and vinyl chloride are not formed.  30 days after one application of CL-Out the TCE concentration was reduced by 97% and the site remediation goals were achieved. Click here to download the case study.

PCE Bioremediation in Aerobic Groundwater

CL-Out microbes were used to remediate PCE in ground water at a former printing company in Kentucky.  The ground-water stratigraphically was in an alluvial sand deposit with high permeability to facilitate the injection.  The high permeability of the aquifer matrix also supported aerobic ground water conditions.  With one application of CL-Out the concentration of PCE decreased from 3,600 ug/L to 250 ug/L in less than 45 days.  With further applications the concentration was reduced to below detection limits in 10 months.