Patent Number: 6,200,483

Title: Structured materials for purification of liquid streams and method ofmaking and using same

Abstract: A monolithic structure having active material that includes at least inorganic ion exchange material, for purifying a liquid stream of contaminants such as heavy metals, chlorine, volatile organics, pesticides, herbicides, and/or parasites, etc. The structure has an inlet end and an outlet end and a multiplicity of cells extending from inlet to outlet end. The cells are separated from one another by porous walls that are alternatively plugged at each end such that a liquid stream that enters the structure, enters through the unplugged cells at the inlet end and passes through porous walls to be purified by the active material, and thereafter passes out of the structure through unplugged cells at the outlet end. One method of making the structure involves applying active material as a coating on an alternately plugged substrate. The average particle size of the active material after calcination is greater than the average cell wall pore size of the substrate. The coated substrate is dried at no greater than C., and calcined at no greater than C., to bond the active material to the substrate. The structure can be shaped from a forming mixture of the active materials.

Inventors: Cutler; Willard A. (Big Flats, NY), Tao; Tinghong (Big Flats, NY), Torns; Jennifer M. (Painted Post, NY)


International Classification: B01J 47/00 (20060101); C02F 1/42 (20060101); C02F 001/42 ()

Expiration Date: 03/12013