Filter media, filter cartridge containing filter media, and method of filtering water
AssigneePepsiCo, Inc.
InventorsFarshad KAMALI, Giancarlo FANTAPPIE, Steven T. JERSEY
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Abstract
A filter medium for removing contaminants from water includes a matrix including a plurality of fibers having an electrostatic charge such that the matrix is configured to remove contaminants from water by electrostatic attraction. The filter medium further includes a filler material including a ceramic substrate containing a mineral. The filler material is embedded in the matrix. When water flows through the filter medium, the mineral at least partially dissolves in the water such that a cavity is formed in the matrix in a location of the at least partially dissolved mineral.
Claims20
A filter cartridge for a beverage dispenser, comprising:
- an outer housing comprising an inlet and an outlet;
- and
- a filter stage comprising a filter medium, wherein the filter medium comprises:
- a matrix comprising a plurality of fibers having an electrostatic charge;
- and
- a filler material comprising a ceramic substrate containing a mineral, wherein the filler material is embedded in the matrix.
A filter medium for removing contaminants from water, comprising:
- a matrix comprising a plurality of fibers having an electrostatic charge such that the matrix is configured to remove contaminants from water by electrostatic attraction;
- and
- a filler material comprising a ceramic substrate containing a mineral, wherein the filler material is embedded in the matrix, and wherein the mineral is configured to at least partially dissolve when water flows through the filter medium such that a cavity is formed in the matrix in a location of the at least partially dissolved mineral.
A method for filtering water containing contaminants using a filter medium, comprising:
- flowing the water containing contaminants through the filter medium, wherein the filter medium comprises a matrix comprising a plurality of fibers having an electrostatic charge and a filler material comprising a ceramic substrate containing a mineral, wherein the filler material is embedded in the matrix;
- trapping a first contaminant of the contaminants in the matrix of the filter medium by electrostatic attraction;
- dissolving at least partially the mineral in the water flowing through the filter medium.
Dependencies are inferred from the claim text.