Zhong Xiong from 37 Diamond, Irvine, CA 92620, age 46

In Situ Immobilization Of Metals In Contaminated Sites Using Stabilized Nanoparticles
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US Patent:

20070203388, Aug 30, 2007
Filed:

Feb 28, 2007
Appl. No.:

11/680266
Inventors:

Dongye Zhao - Auburn AL, US
Zhong Xiong - Auburn AL, US
Mark Barnett - Auburn AL, US
Ruiqiang Liu - Auburn AL, US
Willie Harper - Auburn AL, US
Feng He - Auburn AL, US
International Classification:

B09B 3/00
US Classification:

588249000
Abstract:

A method for preparing a class of highly stabilized and soil-dispersible nanoparticles and using the nanoparticles as a remediation technology for immobilizing toxic metals at toxic metal contaminated sites. The method employs a composition containing select polysaccharides (starch or cellulose) as a stabilizer for the nanoparticles in a liquid carrier, and results in suspensions of nanoparticles of desired size and mobility in water, soils or sediments. The stabilizer can facilitate controlling the dispersibility of the nanoparticles in the liquid carrier. An effective amount of the composition is delivered to a contaminated site so that the nanoparticles can immobilize one or more toxic metals of the contaminated site.