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Nanopore reactive adsorbents for the high-efficiency removal of waste species

United States Patent

January 4, 2005
View the Complete Patent at the US Patent & Trademark Office
A nanoporous reactive adsorbent incorporates a relatively small number of relatively larger reactant, e.g., metal, enzyme, etc., particles (10) forming a discontinuous or continuous phase interspersed among and surrounded by a continuous phase of smaller adsorbent particles (12) and connected interstitial pores (14) therebetween. The reactive adsorbent can effectively remove inorganic or organic impurities in a liquid by causing the liquid to flow through the adsorbent. For example, silver ions may be adsorbed by the adsorbent particles (12) and reduced to metallic silver by reducing metal, such as ions, as the reactant particles (10). The column can be regenerated by backwashing with the liquid effluent containing, for example, acetic acid.
Yang; Arthur Jing-Min (Lancaster, PA), Zhang; Yuehua (State College, PA)
Industrial Science & Technology Network, Inc. (York, PA)
10/ 110,270
September 30, 2002
NON-PROVISIONAL APPLICATION (35 USC 111 (A)) This invention was made with Government support under Contract No. DE-FG02-97ER82409 awarded by the Department of Energy. The Goverment has certain rights to this invention.