Bioremediation of phthalatescan reduce risks to human health and the environment. Phthalates are a a family of common industrial chemicals used in plastics and other consume products. Phthalates can damage the liver, kidneys, lungs and reproductive system. Petrox microbes can remove these contaminants from water or soil to reduce potential exposure to these risks.
Petrox bioremediation of phthalates has been demonstrated in field and laboratory studies to remove phthalates from soil and ground water. Field application of Petrox bioremediation reduced bis(2-ethylhexyl)phthalate (BEP) concentrations from 650 ppm to 397 ppm in soil and 300 to 39 ppb in ground water at a site in Rochester, New York. At the same site di-n-octylphthalate (DOP) in soil was reduced from 7.5 to 1.9 ppm. Click here to view the case study.
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.
Cost-effective Bioremediation of a Dry Cleaners Quickly Removed Contamination
Historical operations at a Houston area dry cleaners resulted in a chlorinated solvent plume (perchloroethylene or PCE) in the shallow ground water. Permeable shallow soil at the site allowed rapid
vertical migration at the source and lateral migration in the shallow ground water. This
migration resulted in an off-site migration of the plume beneath an apartment complex
causing concern for potential vapor intrusion hazards; as well as, a decrease in property
value. A ground-water extraction and treatment system was installed to address the
dissolved phase concentrations. The system reduced the total volatile organic compound
(VOC) concentration in the source area from 115,400 to 36,500 µg/l. However, over
time, operating maintenance and cost escalations were exceeding the on-going remedial
benefit. The system was shut down after nine years of operation. A review of available
remedial technologies that could be implemented within the physical constraints of the
site was conducted. In-situ enhanced aerobic bioremediation was selected to address the
remaining ground-water concentrations because of the permeability of the formation, the
relatively aerobic conditions, and the benefit of reducing the risk of VC accumulation.
Click here for a link to the full report from the 2007 Battelle Conference on Bioremediation
A brownfield plan included Cl-Out bioremediation to reduce high concentrations of TCE and other contaminants in ground water at an industrial site near Newark, New Jersey. 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.