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. 08, 1997
Filed:
Mar. 06, 1995
Applicant:
Inventors:
Curtis A Lajoie, Rockwood, TN (US);
Alice C Layton, Knoxville, TN (US);
Gary S Sayler, Blaine, TN (US);
Assignee:
University of Tennessee Research Corporation, Knoxville, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
B09B / ;
U.S. Cl.
CPC ...
4352625 ; 435262 ;
Abstract
New strains of microorganisms which posses the dual capabilities for growth on surfactants and degradation of polychlorinated biphenyls are used in combination with soil washing for PCB bioremediation. Soil to be treated is washed with a surfactant to solubilize the generally hydrophobic contaminants. The surfactant solution is then treated in a bioreactor with the microorganisms. As the surfactant is degraded, the residual desolubilized contaminants are adsorbed onto an inert substrate, which is removed from the effluent and can be recycled to the bioreactor.