Patent ID: 11919773
Assignee: LG ELECTRONICS INC.
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 14:
15. A filter for a water purifier, the filter comprising:
a filter housing that defines an inlet and an outlet; and
a filter module disposed inside the filter housing and configured to purify water received through the inlet and supply purified water to the outlet,
wherein the filter module comprises a carbon block including activated carbon, the activated carbon having been treated by operations comprising:
providing the activated carbon having micro pores and meso pores;
determining whether the activated carbon is (i) meso pore activated carbon (MeAC) having a volume of the meso pores greater than a volume of the micro pores or (ii) micro pore activated carbon (MiAC) having a volume of the micro pores greater than a volume of the meso pores,
inserting the activated carbon into a chamber,
injecting ozone generated from an ozone generator into the chamber, and applying pressure to the chamber,
modifying a surface of the activated carbon inserted into the chamber based on applying the pressure to the chamber that holds the ozone and the activated carbon, and wherein modifying the surface of the activated carbon comprises:
based on determining that the activated carbon is the MeAC, applying a first ozone-treated time to the activated carbon in the chamber, and
based on determining that the activated carbon is the MiAC, applying a second ozone-treated time to the activated carbon in the chamber, the first ozone-treated time being longer than the second ozone-treated time.