Bioremediation Product Safety

CL Solutions wants to assure you that our products are safe for human health.  All of our products are manufactured under strict health and safety protocols.  Starting with seed cultures, that are known to be safe, from known sources the cultures are grown in sterile sealed tanks.  The finished products are also stored in laboratory-clean areas.  Manufacturing and laboratory areas have separate ventilation systems to prevent product contamination.

Some other manufacturers of bioremediation products use open-top growing tanks that can be contaminated by atmospheric organisms.  These manufactures do not control the type of organisms that may be present in their products.

CL Solutions’ products are tested for viability and the absence of pathogens prior to shipping.  Not all bioremediation manufacturers follow the high QA/QC protocols of our manufacturer.

You can be confident with our bioremediation products that you will get only beneficial microbes and the products will be pathogen free.  These safety measures protect our workers, your workers, and people who live or work at the site.

 

 

 

New Custom Blend Available for Denitrification

CL Solutions has provided Petrox DN for denitrification for many years.  Petrox DN is a freeze-dried consortium that requires hydration before application.  CL Solutions now provides a custom blend of microbes in a dry powdered form with denitrification capabilities. This dry blend makes for more convenient storage and use.  Additional organisms in the consortium can degrade ammonium and organics including petroleum hydrocarbons, fats, carbohydrates, proteins, starches and cellulose.  These benefits make the custom blend a powerful tool for bioremediation of liquid waste in fixed facility treatment or environmental applications.

Call CL Solutions for more infomation or a site evaluation at 513-284-5940.

In Situ TCE Bioremediation Rates

The following chart is a compilation of CL-Out bioremediation results from eleven different sites where ground water was contaminated by trichloroethylene (TCE).  The sites represent all kinds of geological conditions with the full range of TCE concentrations in ground water.

Overall, the results show an average removal rate of 97% .  However, the final TCE concentration reached below detection limits on two sites, and an additional three had greater than 99% removal.  

Keyhole Source Treatment to Reduce PCE Ground Water Plume

CL-Out bioremediation was used in a keyhole treatment to reduce the mass of contamination near the source and down gradient concentrations 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% of the source concentration.  Aggressive treatment in the source area reduced the source concentration and in the down gradient plume.

After one treatment with CL-Out bioremediation, the concentrations decreased as follows:

PCE was reduced from 120,000 to 12 ug/L.

TCE was reduced from 2,000 to 12 ug/L

Cis 1,2-DCE was reduced from 9,500 to 8,100 ug/L.

Vinyl chloride, however, increased from 1,200 to 22,000 ug/L.

The vinyl chloride increased as the aggressive cometabolic treatment stimulated some incomplete reductive dechlorination.

Down gradient from the source, the concentrations decreased with slight to no increase in daughter products.  The following results were measured in the down gradient plume:

PCE reduced from 5,000 to 1,600 ug/L.

TCE reduced from 43 ug/L to BDL.

Cis 1,2-DCE was reduced from 140 to 23 ug/L.

Vinyl chloride  was not detected before or after treatment.

Keyhole treatment was a cost effective approach to reducing the mass of contamination in a ground water plume by focusing aggressive treatment on the source area.  Concentrations in the rest of the plume decreased as the microbes and treated water dispersed through the plume.

 

CL-Out Pilot Study Vandenberg AFB – successful aerobic cometabolism

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 analyzed for the contaminants and breakdown products, microbial population, and dissolved oxygen.

After three months, sampling showed the following contaminant removal near the injection well:

PCE reduced from 44 to 2.6 ug/L.

TCE reduced from 330 to 57.3 ug/L.

Cis 1,2-DCE reduced from 30.7 to 6.2 ug/L.

Vinyl chloride was not detected before or after treatment.

The ground water stayed aerobic during the 90 day pilot study.  The CL-Out population reached a maximum of 9 million cells per milliliters 14 days after injection.  The  CL-Out population was maintained above background populations for at least 60 days and reached as far as 50 feet down gradient.

For more information about the pilot study results, contact CL Solutions.