SBC™

Sulfate BioChem (SBC™) delivers electron acceptors in the form of soluble sulfate salts for long-term biological oxidation of petroleum compounds under anaerobic conditions. SBC™ contains several soluble sulfur salts each with a different purpose. Magnesium sulfate provides the main source of sulfate electron acceptors as well as magnesium, which is essential for cell growth and function. Other sulfur compounds in the mixture help to achieve and maintain the proper redox conditions for anaerobic oxidation of petroleum compounds by sulfate reduction. During anaerobic oxidation, the petroleum degrading microbes utilize the oxygen on the sulfate to convert to harmless carbon dioxide and water.

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SDS

The long-term remediation process is biological oxidation. Based on Weidemeier et al. (1999), more than 70% of the natural attenuation of fuels results from sulfate reduction. In addition, there are many descriptions in the literature of the addition of soluble sulfate to successfully remediate petroleum contaminated sites (e.g., Reinhard et al., 1997; Anderson and Lovely, 2000; Somsamak et al., 2001; Sublette et al., 2006). The site described by Reinhard et al., 1997 is in a similar geologic setting near sensitive coastal use areas. We have used sulfate reduction to remediate sites to closure.

SBC™ has advantages over other formulations used for bioremediation in that it provides soluble sulfates and compounds that help develop and promote the necessary redox conditions to sustain oxidation by sulfate reduction. SBC™ is ideally suited for the treatment of BTEX, and MTBE, as well as naphthalene and other PAHs. SBC™ is highly soluble and safe to handle so it is very easy to inject.

References

  1. Weidemeier et al., 1999, Natural Attenuation of Fuels and Chlorinated Solvents in the Subsurface, John Wiley and Sons, New York.
  2. Anderson and Lovely, 2000, Environ. Sci. Technol., 34, 2261-2266.
  3. Reinhard et al., 1997, Environ. Sci. Technol., 31, 28-36.
  4. Somsamak et al., 2001, FEMS Microbiology Ecology, 37, 259-264.
  5. Sublette et al., 2006, Ground Water Monitoring and Remediation, 26 (2), 70-78.

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