Apparatus for enhanced bioremediation of underground contaminant

Details Apparatus for enhanced bioremediation of underground contaminant Apparatus for enhanced bioremediation of underground contaminant

1997-02-25

1997-11-25

Tsay, Frank

Wells

Processes

Distinct, separate injection and producing wells

1663051, 166 74, 405128, E21B 4301, B09B 300

Patent

active

056901739

ABSTRACT:
A method and apparatus for achieving in situ bioremediation of dissolved or dispersed organic contaminants in the groundwater phase at a contaminated site. The apparatus of this invention is configured to be used within an injection well of the type employed with known remediation techniques and enhances the biological treatment of soil contaminants in situ with microbes through achieving optimal levels of oxidizing agents within the soil. As such, the present invention is adapted to be employed in conjunction with conventional remediation systems to treat water-borne contaminants more efficiently. Importantly, the apparatus is also capable of delivering oxidizing agents in a manner that prevents or at least reduces the occurrence of biofouling of the injection and recovery wells.

REFERENCES:
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patent: 5332333 (1994-07-01), Bentley
patent: 5360067 (1994-11-01), Meo, III
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patent: 5441365 (1995-08-01), Duffney et al.
patent: 5520483 (1996-05-01), Vigneri
patent: 5543623 (1996-08-01), Everett et al.
patent: 5553189 (1996-09-01), Stegemeier et al.
patent: 5577558 (1996-11-01), Abdul et al.
"Enhancement of Bioremediation Using Aeration Device," The Hazardous Waste Consultant, pp. 1.27-1.28 (Jan./Feb. 1995).

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