The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 1994
Filed:
Mar. 17, 1992
Applicant:
Inventors:
Lewis Semprini, Palo Alto, CA (US);
Perry L McCarty, Stanford, CA (US);
Peter K Kitanidis, Stanford, CA (US);
Jae-Ho Bae, Sunnyvale, CA (US);
Assignee:
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210610 ; 210629 ; 210747 ; 210170 ; 210196 ; 210220 ; 166 68 ; 166370 ; 166372 ; 261 76 ; 261D / ; 138 41 ;
Abstract
A system for in-situ bioremediation includes a well extending into a saturated zone. The well includes a casing having two permeable sections in the saturated zone. Groundwater may be recirculated through the well and the saturated zone between the two permeable sections. Nutrients, such as oxygen and methane, may be added to the groundwater as it flows in the well. A venturi transfer device may be used to supply the nutrients.