Land farming is a method in which relatively shallow contaminated soil is excavated, gathered at a designated location, and then sprayed with a solution containing the microbial product and nutrients, and mixed. The contaminated soil is dug up and periodically turned with equipment such as a backhoe, which improves the contact efficiency between the contaminants and the microbes while at the same time supplying oxygen to promote remediation. This method requires heavy machinery for the mixing work, such as a backhoe, and sufficient site space in which to carry out the operation.
The biopile method (Biopile) is an enhancement technique used in addition to land farming. Contaminated soil that has been sprayed with a solution containing the microbial product and nutrients is stacked into piles, and outside air is drawn in through piping buried inside to supply oxygen into the soil, further boosting the activity of the microbes and promoting the breakdown of contaminants. It is a technique adopted in combination with land farming when more efficient remediation is desired.
In-situ mixing is a method in which relatively shallow contaminated soil is sprayed with a solution containing the microbial product and nutrients and mixed directly with equipment such as a backhoe. Periodic mixing improves the contact efficiency between the contaminants and the microbes while supplying oxygen to promote remediation. Because the soil does not need to be excavated or moved, remediation is possible even without a large site.
In-situ direct injection (In-situ Direct Injection) is a method that allows contaminated soil to be remediated without excavation. Using equipment such as a boring machine, a solution containing the microbial product and nutrients is injected directly, creating an environment underground in which microbes can act. Work is possible even when there are buildings or structures above the target soil, making it an effective technique for facilities in operation or for sites with constraints.
In-situ well injection (In-situ Well Injection) is a method that uses wells or monitoring boreholes to inject a solution containing the microbial product and nutrients into the ground. Because existing wells and boreholes can be used as they are, remediation can be carried out even at facilities in operation.
The Bio Reactor is a biological remediation system that combines the composite microbial product “the Oppenheimer Formula” with a proprietary oxidation tank to efficiently break down oil, VOCs, and other contaminants. In the oxidation tank, a vortex flow vigorously agitates the oil, microbial product, nutrients, and oxygen to promote microbial breakdown; in the settling tank, the microbes (sludge) are separated from the treated water, and sludge return stabilizes the microbial population; finally, a sand-filtration tank performs final breakdown and filtration via a microbial film to produce clear discharge water. Its sealed structure prevents volatilization, and it can handle a wide range of sites — from groundwater remediation to wastewater treatment, including wastewater containing hydrogen sulfide.
