Pesticide Bioremediation – Landfarming Application for DDD, DDE and Toxaphene

Petrox® bioremediation was used to remediate pesticide-contaminated soil at an industrial location in California. Soil Remediation The soil contamination consisted of pesticides including 4,4-DDD, 4’4-DDE and toxaphene.  Soil samples were sent to CL Solutions for bench-scale treatability studies.   The following table shows the  maximum detected concentrations and the treatment results. Contaminant Untreated Concentrations (ug/Kg) Post-treatment […]

TCE Bioremediation Rates

The following chart is a compilation of TCE bioremediation rates by CL-Out microbes.  This data is from eleven different sites where ground water was contaminated by trichloroethylene (TCE) and remediatedby CL-Out microbes.  The sites represent all kinds of geological conditions with the full range of TCE concentrations in ground water. Overall, the results show an […]

Keyhole Source Treatment to Remediate PCE in Ground Water Plume

CL-Out bioremediation was used in a keyhole treatment to remediate PCE.  The source treatment also reduced the mass of contamination down gradient in the plume.  At a former manufacturing facility in Ohio the concentration of PCE near the source was over 100,000 ug/L.  Down gradient of the source the PCE concentrations were less than 10% […]

CL-Out Pilot Study Vandenberg AFB

Successful Aerobic Cometablism A pilot study of the applicability of CL-Out aerobic cometabolism of PCE and other chlorinated solvents was completed at Vandenberg Air Force Base.  The pilot study consisted of injection in a single well and groundwater sampling at four surrounding wells to monitor the progress of bioremediation.  During the pilot study, samples were […]

Case Study of In-Situ Bioremediation of Recalcitrant Organics

A history of spills and/or releases at two adjacent dry cleaning facilities near Houston, TX, resulted in significant soil and shallow groundwater contamination with PCE and daughter products. Soil was relatively permeable, with rapid groundwater flow beneath the site. A long, narrow, off-site plume extended beneath a residential neighborhood. Chemical oxidation was employed initially with […]