Bioventing

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Prior to onset of bioventing, it is recommended to perform tests and measurements of the applicability of the method. These should include in situ respiration test, in situ permeability test and measurements of pH, bioavailable nutrients and soil moisture.
Prior to onset of bioventing, it is recommended to perform tests and measurements of the applicability of the method. These should include in situ respiration test, in situ permeability test and measurements of pH, bioavailable nutrients and soil moisture.
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[http://www.epa.gov/ORD/NRMRL/lrpcd/esm/biov_fact.htm USEPA]
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Links:
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[http://www.epa.gov/OUST/cat/biovent.htm Overview (USEPA)]
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[http://www.epa.gov/OUST/pubs/tums.htm A Guide for Corrective Action Plan Reviewers (USEPA)]
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[[Image:Biofinal.gif]]
[[Category:PhD-projects]]
[[Category:PhD-projects]]

Revision as of 19:14, 29 February 2008

Bioventing is an in-situ bioremediation process that promotes aerobic biodegradation of organic contaminants in the unsaturated (vadose) zone. The method are suitable for fuels like gasoline, diesel and jet fuel, and non-chlorinated solvents like acetone. Typically, these pollutants will be biodegraded at aerobic conditions by indigenous heterotrophic microorganisms. Thus, in order to promote the natural degradation, air or poor oxygen is delivered to anaerobic and permeable polluted soil zones at a low flow rate such that the oxygen supply rate meets the demand by the microorganisms and minimizes volatilization of volatile contaminants.

Prior to onset of bioventing, it is recommended to perform tests and measurements of the applicability of the method. These should include in situ respiration test, in situ permeability test and measurements of pH, bioavailable nutrients and soil moisture.

Links: Overview (USEPA) A Guide for Corrective Action Plan Reviewers (USEPA)

Image:Biofinal.gif

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