DELIVERY VEHICLES FOR ENVIRONMENTAL REMEDIANTS

Title:

DELIVERY VEHICLES FOR ENVIRONMENTAL REMEDIANTS

Document Type and Number:

WIPO Patent Application WO/2003/013252

Kind Code:

A1

Abstract:

The invention provides novel environmental remediants and methods for remediating contaminated soils, earth, ground, or groundwater, particularly subsurface sites. The environmental remediants comprise a chemically or biologically active material, in the form of a particle which are on average less than about one micron, and a carrier which is interactive with an environmentally acceptable solvent. The carrier is capable of maintaining the particles in a persistent suspension which can permeate soil pores due to its small size, thereby delivering the remediant to the subsurface contamination. Significant advantages over prior art methods, particularly for metallic nanoparticles, are avoiding agglomeration, ease of application, and delivery to subsurface sites. Methods are provided which comprise selecting an appropriate environmental remediant and contacting a subsurface soil or water with the remediant; by applying the remediant in a composition with a carrier, wherein the remediant transits to the subsurface site.

Inventors:

MALLOUK THOMAS E (US)
SCHRICK BETTINA (DE)
BLOUGH JENNIFER L (US)

Application Number:

PCT/US2002/024519

Publication Date:

February 20, 2003

Filing Date:

August 02, 2002

Export Citation:

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Assignee:

MALLOUK THOMAS E (US)
SCHRICK BETTINA (DE)
BLOUGH JENNIFER L (US)

International Classes:

B01J20/32; B09C1/08; B09C1/10; C02F1/70; C09K17/02; C09K17/18; B09C1/02; C09K17/32; C09K17/40; C09K17/50; B01J20/28; C09K101/00; (IPC1-7): A01N63/00; B09B3/00; B01J20/20; B01J20/22; C02F3/02; C05G3/00; C05F11/08

Foreign References:

US5744337A	1998-04-28
US6403364B1	2002-06-11
US5976847A	1999-11-02
US6331300B1	2001-12-18