126 results about "Bacteria removal" patented technology

A filter device for filtering liquid passing there through, the filter device comprising a housing (101) for securing to a source (3) of the liquid and having a liquid accommodating duct (10) there through for accommodating the liquid. The duct (10) extends from an upstream end for communicating with the liquid source (3), to a downstream end terminating in an outlet (14) through which the liquid is discharged from the filter device, wherein the filter device incorporates a filter element (110, 111, 113) for substantially removing bacteria from the liquid passing there through.

The present invention provides an air bacteria removal device in which leakage of electrolytic water to the outside is eliminated as much as possible and in which maintenance can easily be performed, the air bacteria removal device comprises a main body including a water storage section having a sealed or semi-sealed structure in which the electrolytic water is stored, and a water absorption member for supplying the electrolytic water from the water storage section to an air-liquid contact member by use of a capillary phenomenon, the air-liquid contact member and the water absorption member are integrated and detachably attached to the main body, the water absorption member attached to this main body enters the water storage section, and is submerged into the electrolytic water, and the water storage section is brought into a sealed or semi-sealed state.

Disclosed is a method of providing potable water that includes providing a filter, passing water through the filter, and removing bacteria and viruses from the water with the filter. The filter comprises a housing having an inlet and an outlet and a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous wood activated carbon filter particles and particles selected from the group consisting of mesoporous wood activated carbon filter particles coated entirely with a cationic polymer, mesoporous wood activated carbon filter particles partially coated with a cationic polymer, and mixtures thereof. A sum of mesopore and macropore volumes of the filter particles may be between about 0.2 mL / g and about 2 mL / g, wherein mesopore means an intra-particle pore having a diameter between 2 nm and 50 nm, and macropore means an intra-particle pore having a diameter greater than 50 nm, a total pore volume of the filter particles is greater than about 0.4 mL / g and less than about 3 mL / g, and a ratio of the sum of the mesopore and macropore volumes to the total pore volume of the filter particles is greater than about 0.3. The filter removes bacteria and viruses from the water at a level of Filter Bacteria Log Removal of greater than about 2 logs and a Filter Viruses Log Removal of greater than about 1 log.