Adsorbents for removing heavy metals
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United States of America Patent
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Sep 30, 2008
Grant Date -
Jul 14, 2005
app pub date -
Dec 7, 2004
filing date -
Aug 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Adsorbents for removing anions of a heavy metals and methods for using same are provided. Metal removing adsorbents comprise a porous material in which at least one oxygen-containing compound of iron, copper, aluminum, titanium, and/or zirconium is incorporated. The oxygen-containing compound may be incorporated into the porous media by impregnation or dispersion of a suitable precursor of such a compound. The precursor may be further treated to yield the oxygen-containing compound. Such adsorbents are particularly useful for removing arsenic and/or selenium from the environment and may be used in treating drinking water sources.
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