METHOD FOR CLEANING CAPILLARY AND POROUS MEDIA

Title:

METHOD FOR CLEANING CAPILLARY AND POROUS MEDIA

Document Type and Number:

WIPO Patent Application WO/1998/002600

Kind Code:

A1

Abstract:

The present invention pertains to the field of electro-osmotic technology and may be used for cleaning objects in the environment which have a capillary and porous structure (i.e., soil, rocks, etc.) and have been contaminated by crude oil or petroleum products. This device includes electrodes and more precisely an anode and a cathode connected to a direct current power supply. The device also comprises a vessel for the cleaning liquid, said vessel having a distribution system penetrating into the zone of the capillary and porous medium to be cleaned. The device eventually comprises a manifold for collecting the liquid separated at the cathode, said manifold being connected by a duct to the distribution system. The vessel for the cleaning fluid contains a solution of micro-organisms capable of oxidising the crude oil. This device may be used for the effective cleaning of capillary and porous media which have been contaminated by heavy metals as well as by intermediate and light crude oil fractions.

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Inventors:

ISAKOV DONAT ANATOLIEVICH (RU)
IOSSEL JURY YAKOVLEVICH (RU)
SAXON VALERY MIKHAILOVICH (RU)
KAZAROV GRIGORY SEMENOVICH (RU)
KUZNETSOV SERGEI ANATOLIEVICH (RU)
LIPATOV VALERY VASILIEVICH (RU)

Application Number:

PCT/RU1997/000076

Publication Date:

January 22, 1998

Filing Date:

March 18, 1997

Export Citation:

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Assignee:

ISAKOV DONAT ANATOLIEVICH (RU)
IOSSEL JURY YAKOVLEVICH (RU)
SAXON VALERY MIKHAILOVICH (RU)
KAZAROV GRIGORY SEMENOVICH (RU)
KUZNETSOV SERGEI ANATOLIEVICH (RU)
LIPATOV VALERY VASILIEVICH (RU)

International Classes:

C25C1/22; B01D61/56; B09C1/08; B09C1/10; E21B43/24; (IPC1-7): C25C1/22; B09C1/00

Foreign References:

US5074986A	1991-12-24
US5137608A	1992-08-11
US5240570A	1993-08-31
US5476992A	1995-12-19
US4749519A	1988-06-07
RU94046089A	1996-09-20

Attorney, Agent or Firm:

Sandigursky, Oleg Lvovich (7-54 St.Petersburg, 3, RU)

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