BOS 200® – Frequently Asked Questions
How is Trap & Treat® BOS 200® made? What is its chemistry?
How does Trap & Treat® BOS 200® work?
How are Trap & Treat® products put into the ground?
Is Trap & Treat® BOS 200® expensive to use?
How is Trap & Treat® BOS 200® made? What is its chemistry?
BOS 200® is a mixture of approximately 80 percent powdered or granulated activated carbon which is combined with a blend of sulfate reduction material and micronutrients at the factory. When the product is used, a proprietary mixture of naturally occurring microbes (Trap & Treat® Bacteria Concentrate) is added to speed up the remediation process.
How does Trap & Treat® BOS 200® work?
BOS 200® (for petroleum contamination) traps subsurface contamination, soaking it up like a sponge. Once the contaminant is “trapped,” the remediation ingredients immediately begin to degrade the contamination. This “treatment” occurs through a biological process that works with or without the presence of subsurface oxygen.
How are Trap & Treat® products put into the ground?
A remediation-specific site investigation is usually the first step before injection. Soil and groundwater samples show the horizontal extent of contamination and give an idea of at what depths and in what amount the products will need to be injected vertically. Typically, a 10,000 square foot “plume” (the horizontal footprint of the contamination) would require approximately 100 injection locations. At each injection location, several Trap & Treat® slurry injections would be done at depths prescribed by the site investigation (e.g. 10 feet, 12 feet, 14 feet, etc.).
Most injections are done with a direct push rig, mixing tank, and a pressure pump. Direct push rigs hammer small diameter pipes into the ground. These pipes serve as conduits for the precise injection of the Trap & Treat® product at pre-prescribed depths.
A number of environmental contractors have started using our products for source mitigation. Once excavation of contaminated soils has been performed, Trap & Treat® products are used to line the bottom of the excavation before it is backfilled. This practice remediates any residual contamination remaining after the excavation and serves as a kind of “remediation insurance policy” against future contamination.
Is Trap & Treat® BOS 200® expensive to use?
BOS 200® injections are very cost competitive with other in situ remedies. In fact, after seven years and counting, more than 95% of first-time BOS 200® customers continue to use the product at additional sites.