APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS
6 Assignments
0 Petitions
Accused Products
Abstract
Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes more than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water.
105 Citations
33 Claims
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1-29. -29. (canceled)
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30. A process, comprising:
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providing a contaminated rare earth-containing composition in contact with active and deactivated biological contaminants; sterilizing the contaminated rare earth-containing composition to provide a sterilized rare earth-containing composition substantially free of active biological contaminants for reuse or disposal. - View Dependent Claims (31, 32, 33)
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Specification