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:
Oct. 29, 1991
Filed:
Aug. 17, 1990
Applicant:
Inventors:
Hansgeorg Balthaus, Dusseldorf, DE;
Karl Hoffmann, Essen, DE;
Assignee:
Philipp Holzmann Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B / ;
U.S. Cl.
CPC ...
405128 ; 210747 ; 405263 ;
Abstract
A method for the remediation of contaminated soils, in which, without transport of the soil to the surface, a loosening of the soil structure is achieved by progressively injecting a liquid under high pressure into at least one cylindrically shaped soil body. Besides loosening the soil the liquid also serves as a carrier and transport medium for at least one effective substance, which decomposes and/or converts the respective contaminant on site. By this method, the effective substances are uniformly distributed in the soil treatment zones and reach the contaminants even in heterogeneous soil structures.