Patent ID: 8252087
Filing Date: 2012-08-28
Classification: A61L,B01D

Abstract:
1. A process, comprising: contacting a contaminated gas containing one or more of a chemical and an active biological contaminant with a cerium (IV) oxide-containing aggregate composition to remove the one or more of a chemical and active biological contaminant, respectively, to form a decontaminated gas and a contacted cerium (IV) oxide-containing aggregate composition, wherein the contacted cerium (IV) oxide-containing aggregate composition comprises the one or more of the chemical and biological contaminants and wherein the cerium (IV) oxide-containing aggregate composition comprises at least about 50% by weight cerium (IV) oxide; separating the decontaminated gas from the contacted cerium (IV) oxide-containing aggregate composition; and sterilizing the contacted cerium (IV) oxide-containing aggregate composition to remove the one or more of a chemical and biological contaminants.