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United States of America Patent
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Jun 26, 2012
Grant Date -
Sep 27, 2007
app pub date -
Mar 22, 2007
filing date -
Mar 22, 2006
priority date (Note) -
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Abstract
Aspects of the present disclosure provide composite carbon blocks with improved capacity for the removal of contaminants such as THMs (trihalomethanes) and trace VOCs (volatile organic compounds) found in water. In one aspect, a filtration matrix comprises a polymeric binder and an adsorptive media comprising activated carbon having a bulk density of 0.54 (0.57, or even 0.60) g/cc or greater. The carbon BET surface area can be 1100 (950, or even 550) m2/g or less. The polymeric binder can be ultra high molecular weight polyethylene. Also provided are methods of making filtration matrixes.
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