EOS Remediation has been developing products based on the latest scientific discoveries in groundwater remediation since we developed the technology of using emulsified vegetable oils (EVO) for Enhanced Reductive Dechlorination (ERD) for the research arm [...]
For over 20 years, customers have turned to EOS Remediation for natural, science-driven solutions for aquifer and soil decontamination. Now, increasingly, sustainability and green remediation are not only good for the environment, but also good for [...]
Tech Tip CoBupH is a safe, easy-to-use, long-lasting, colloidal buffer that can be mixed with any EOS® emulsified oil product or used alone for long-term pH control. At many sites, acidic [...]
Tech Tip Nitrogen is an essential nutrient for the growth of microorganisms, including dechlorinating bacteria. Some bacteria in nutrient-limited (oligotrophic) environments can convert atmospheric nitrogen (N2) to a form that [...]
Tech Tip Liquid suspensions containing zero valent iron (EOS ZVI), pH buffers (CoBupHMG), magnetite, or other solid materials are often injected during in situ remediation projects. However, when the particles have [...]
Tech Tip During enhanced reductive dechlorination (ERD), naturally occurring sulfate (SO4 2-) is reduced to hydrogen sulfide (H2S). High concentrations of H2S can inhibit reductive dechlorination, reducing remediation efficacy (Hoelen [...]
Tech Tip When injecting into multiple wells simultaneously, stagnation zones can develop preventing effective reagent delivery. Figure 1 shows the simulated EOS Pro distribution in a homogeneous aquifer when EOS Pro is [...]
Tech Tip Alkaline materials including hydroxides and carbonates are commonly added during enhanced reductive dechlorination (ERD) to maintain ph greater than 6. Our recent tech tip described a simplified approach for estimating the [...]
Tech Tip In the January Tech Tip we discussed the positive impact efficient injection well spacing can have on project costs. The DoD's Environmental Research Programs, SERDP and ESTCP, have [...]
Tech Tip Many professionals assume that the smallest oil droplets will transport the farthest during subsurface substrate injection. However, this is not always true. Water treatment engineers have studied particle (and droplet) removal [...]