发明授权
US07581902B2 In situ immobilization of metals in contaminated sites using stabilized iron phosphate nanoparticles
失效
使用稳定的磷酸铁纳米粒子原位固定金属在受污染的场所
- 专利标题： In situ immobilization of metals in contaminated sites using stabilized iron phosphate nanoparticles
- 专利标题（中）： 使用稳定的磷酸铁纳米粒子原位固定金属在受污染的场所
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申请号： US11680266申请日： 2007-02-28
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公开(公告)号： US07581902B2公开(公告)日： 2009-09-01
- 发明人: Dongye Zhao , Zhong Xiong , Mark Barnett , Ruiqiang Liu , Willie F. Harper , Feng He
- 申请人： Dongye Zhao , Zhong Xiong , Mark Barnett , Ruiqiang Liu , Willie F. Harper , Feng He
- 申请人地址： US AL Auburn
- 专利权人： Auburn University
- 当前专利权人： Auburn University
- 当前专利权人地址： US AL Auburn
- 代理机构： Andrus, Sceales, Starke & Sawall, LLP
- 主分类号： B09C1/00
- IPC分类号： B09C1/00
摘要：
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.
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