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 f
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 filter particles consisting of mesoporous activated carbon. 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.
대표청구항▼
What is claimed is: 1. A method of providing potable water, comprising: (a) providing a filter comprising 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 filter particles consisting of mesopor
What is claimed is: 1. A method of providing potable water, comprising: (a) providing a filter comprising 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 filter particles consisting of mesoporous activated carbon, wherein: (i) a sum of mesopore and macropore volumes of the filter particles is 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, (ii) a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and (iii) 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; (b) passing water through the filter; and (c) removing bacteria and viruses from the water with the filter 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. 2. The method of claim 1, wherein the sum of the mesopore and the macropore volumes of the plurality of filter particles is greater than about 0.4 mL/g and less than about 1 mL/g. 3. The method of claim 1, wherein the filter material is disposed in the housing for axial flow and wherein the filter material has a face area of at least 1.5 in.2 and a filter depth of at least 0.25 in. 4. The method of claim 1, wherein the filter material is disposed in the housing for radial flow, wherein the filter material has an outside diameter of at least 0.5 in., an inside diameter of at least 0.25 in., a filter depth of at least 0.125 in., and a length of at least 0.5 in. 5. The method of claim 1, wherein the step of passing water through the filter material comprises an average fluid residence time of at least 3 s. 6. The method of claim 1, wherein the filter material has a single-collector efficiency, η, of between about 0.005 and 0.25, and a filter coefficient, λ, between about 40 m−1 and about 14,000 m−1. 7. The method of claim 1, further comprising a step of informing a user that the filter may be used to remove microorganisms. 8. The method of claim 1, wherein the filter material is further formed at least in part from other materials selected from the group consisting of activated carbon powders, activated carbon granules, activated carbon fibers, zeolites, activated alumina, activated magnesia, diatomaceous earth, activated silica, hydrotalcites, glass, cationic materials, polyethylene fibers, polypropylene fibers, ethylene maleic anhydride copolymer fibers, sand, clay, and mixtures thereof. 9. The method of claim 1, wherein the total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 2 mL/g. 10. The method of claim 1, wherein the pore volume is at least about 0.03 mL/g for pore diameters between about 4 nm and about 6 nm. 11. The method of claim 1, wherein the step of removing the bacteria and viruses from the water comprises removing bacteria and viruses with the filter at a level of Filter Bacteria Log Removal of greater than about 4 logs and a Filter Viruses Log Removal of greater than about 2 logs. 12. The method of claim 11, wherein the step of removing the bacteria and viruses from the water comprises removing bacteria and viruses with the filter at a level of Filter Bacteria Log Removal of greater than about 6 logs and a Filter Viruses Log Removal of greater than about 4 logs. 13. The method of claim 1, wherein the filter has a single-collector efficiency, η, of greater than about 0.002. 14. The method of claim 1, wherein the filter particles are wood-based activated carbon particles having a Brunauer, Emmet, and Teller (BET) specific surface area between about 1,000 m2/g and about 2,000 m2/g, the total pore volume is between about 0.8 mL/g and about 2 mL/g, and the sum of the mesopore and macropore volumes is between about 0.4 mL/g and about 1.5 mL/g. 15. A method for providing potable water, comprising: (a) providing a filter comprising 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 filter particles consisting of mesoporous and basic activated carbon, wherein: (i) a sum of mesopore and macropore volumes of the filter particles is 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, (ii) a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and (iii) 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; (b) passing water through the filter; and (c) removing bacteria and viruses from the water with the filter 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. 16. The method of claim 15, wherein the plurality of filter particles has a point of zero charge between about 9 and about 12 and an Oxidation Reduction Potential between about 290 mV and about 175 mV. 17. The method of claim 15, wherein the filter particles are wood-based activated carbon particles having a Brunauer, Emmet, and Teller (BET) specific surface area between about 1,000 m2/g and about 2,000 m2/g, the total pore volume is between about 0.8 mL/g and about 2 mL/g, and the sum of the mesopore and macropore volumes is between about 0.4 mL/g and about 1.5 mL/g. 18. The method of claim 15, wherein the plurality of filter particles has a point of zero charge greater than about 8, and an Oxidation Reduction Potential less than about 400 mV. 19. A method for providing potable water, comprising: (a) providing a filter comprising 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 filter particles consisting of mesoporous, basic and reduced oxygen activated carbon, wherein: (i) a sum of mesopore and macropore volumes of the filter particles is 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, (ii) a total pore volume of the filter particles is greater than about 0.4 mL/g and less than about 3 mL/g, and (iii) 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; (b) passing water through the filter; and (c) removing bacteria and viruses from the water with the filter 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. 20. The method of claim 19, wherein the plurality of filter particles has a point of zero charge of greater than about 8, and an Oxidation Reduction Potential of less than about 325 mV. 21. The method of claim 19, wherein the plurality of filter particles has a bulk oxygen percentage by weight of less than about 1.2%.
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Derbyshire Francis J. ; Jagtoyen Marit, Activated carbon and process for making same.
Burchell Timothy D. ; Weaver Charles E. ; Chilcoat Bill R. ; Derbyshire Frank ; Jagtoyen Marit, Activated carbon fiber composite material and method of making.
Gossett Charles W. (14025 Crenshaw Blvd. Hawthorne CA 90250) Dauenhauer William J. (P.O. Box 487 Gualala CA 95445), Air and light impervious water purification and product dispensing system.
Lambert Roland J. L. R. (Reze FRX) Letourneur Jean-Claude C. M. (Pornichet FRX), Apparatus for centrifuging of a liquid packaged in flexible-walled bags connected to at least one filter.
Teran Alfredo J. ; Derrick ; Jr. John R. ; Samad Nidal A. ; Willoughby W. Todd ; Vassiliev Igor A. ; Mangicarpa Louis V. ; Diaz Carlos V., Apparatus for the purification of water.
Montagnon Jean R. (La Celle St. Cloud FRX) Bablon Guy P. (Feucherolles FRX) Dagois Grard L. (Asnieres FRX) Ventresque Claire C. (Colombes FRX), Biological contactor for purifying water to produce drinking water and associated control method.
Ostreicher Eugene A. (Farmington CT) Knight Rodney A. (New Milford CT) Fiore Joseph V. (Fairfield CT) Emond George T. (Southington CT) Hou Kenneth C. (San Antonio TX), Charge modified microporous membrane.
Ostreicher Eugene A. (Farmington CT) Knight Rodney A. (New Milford CT) Fiore Joseph V. (Fairfield CT) Emond George T. (Southington CT) Hou Kenneth C. (San Antonio TX), Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid.
Pall David B. (Roslyn Estates NY) Degen Peter J. (Huntington NY) Joffee Irving B. (Huntington NY) Foss Warren M. (Glen Cove NY) Gsell Thomas C. (Levittown NY), Charge-modified microfiber filter sheets.
Pall David B. (Roslyn Estates NY) Degen Peter J. (Huntington NY) Joffee Irving B. (Huntington NY) Foss Warren M. (Glen Cove NY) Gsell Thomas C. (Levittown NY), Charge-modified microfiber filter sheets.
Everhart Dennis Stein ; Gadsby Elizabeth Deibler ; Kaylor Rosann Marie ; Kiick-Fischer Kristi Lynn, Chemically charged-modified filter for removing particles from a liquid and method thereof.
Petrucci Raymond M. (Middlebury CT) Taylor Bruce G. (Kensington CT) Giordano Edward C. (Manchester CT) Padilla James M. (Covina Heights CA) Palmer Carl (La Habra Heights CA), Combined quick-change filter cartridge and head.
Monroe Jerry ; Windenburg Wayne, Compact water-conserving kitchen water station with sink for supplying copious purified water, particularly for restaur.
Pall David B. ; Muellers Brian T. ; Degen Peter J. ; Alex Tony ; Gildersleeve Michael, Composite structure having a porous filter medium and a method for forming same.
Wayne Conrad CA; Joe Garrison CA; Shawn Nielson CA; Richard Zulik CA; Terry Bohrson CA; John Stouth CA; Mike Badgley CA, Construction of a water treatment reservoir for a domestic water treatment appliance.
Blandford Mary Jane (1809 Paul Spring Rd. Alexandria VA 22307) Blandford Robert R. (1809 Paul Spring Rd. Alexandria VA 22307), Consumer water filtering apparatus.
Cunkle Glen T. ; Gande Matthew E. ; Seltzer Raymond, Derivatives of 1-oxyl-4-amino-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers.
Maire Jacques (Epinay sur Seine FRX) Fourre Jacques (Soisy sous Montmorency FRX) Gervais Jean P. (Noisy le Sec FRX), Dual pore-structure artificial carbon and graphite.
Gordon ; Jr. Edward C. (7475 SW. Cherry St. Tigard OR 97221) Gordon Glen D. (7475 SW. Cherry St. Tigard OR 97221), Effluent water filter device and method.
Wadsworth John ; Conley William Patrick ; Carty Daniel T. ; Doolittle Fredrick G. ; Rinker Edward B. ; Johnson Kaj A. ; Hedberg Elizabeth ; Kling Carl, Faucet mounted water filter.
Hembree Richard D. (Minneapolis MN) Stumpf William E. (Minneapolis MN) Weber Jeffrey A. (Minneapolis MN) Lund James L. (Lake Elmo MN), Faucet mounted water treatment device.
Gieseke Steven Scott ; Juliar William M. ; Steinbrueck Edward A. ; Bishop Wayne R. W. ; Golden Patrick ; Musselman Wayne C., Filter element with centerpiece.
Hou Kenneth C. (San Antonio TX) Webster Timothy J. (Norfolk CT), Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms, and p.
Seeley Larry E. (P.O. Box 1026 Port Richey FL 34673-1026), Filter to be attached around user\s waist for purifying air in a supplied air breathing system for use in otherwise haza.
Mitchell, Michael Donovan; Owens, Blair Alex; Collias, Dimitris Ioannis; Wnuk, Andrew Julian, Filters and filter materials for the removal of microorganisms and processes for using the same.
Koski Kraig J. ; Hunter Brian D. ; Aldred Jeffrey K., Flow totalization, reset, and restriction mechanism for use in indicating the end of a treatment cartridge useful life.
Moyher ; Jr. George C. (Bluff City TN) Jamerson Randy (Bristol VA) Nessim David (Bristol TN) Kapec Jeffrey (Westport CT) Tanaka Kazuna (Cos Cob CT) Chochinov Allan (Brooklyn NY), Fluid purification systems.
Kuennen Roy W. ; Dykhouse Robin M. ; Kool Dennis J. ; Markham Ronald C. ; Pippel Bradley J. ; Kidd Dennis E. ; Tiede Merlin G., Home water purification system.
Kuennen Roy W. (Kentwood MI) Dykhouse Robin M. (Grand Rapids MI) Kool Dennis J. (Kentwood MI) Markham Ronald C. (Kentwood MI) Pippel Bradley J. (Grandville MI) Kidd Dennis E. (Rockford MI) Tiede Merl, Home water purification system with automatic disconnecting of radiant energy source.
Kuennen Roy W. (Kentwood MI) Dykhouse Robin M. (Grand Rapids MI) Kool Dennis J. (Kentwood MI) Markham Ronald C. (Kentwood MI) Pippel Bradley J. (Grandville MI) Kidd Dennis E. (Rockford MI) Tiede Merl, Home water purification system with filter end of life monitor.
Gallo Steven P. (21 Aldom Cir. West Caldwell NJ 07006) Fiorelli Jack (521 Rivervale Rd. Rivervale NJ 07675), Liquid distribution and dispensing apparatus and method.
Ostreicher Eugene A. (Farmington CT) Knight Rodney A. (New Milford CT) Fiore Joseph V. (Fairfield CT) Emond George T. (Southington CT) Hou Kenneth C. (San Antonio TX), Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane.
Lieberman Alexander I. (St. Petersburg RUX) Pimenov Alexander V. (St. Petersburg RUX) Gorokhov Nicholas Y. (St. Petersburg NY RUX) Shmidt Joseph L. (Brooklyn NY) Lieberman Leonid I. (St. Petersburg R, Manufacture of activated carbon fiber.
Yamasaki, Kazuyuki; Yamamoto, Kimio; Watanabe, Masanobu; Kan, Kojiro; Nakayama, Yoshio, Membrane filter material having excellent organic solvent resistance, method for formation of membrane filter and process for preparation of bismaleimide polymer to be used for membrane filter.
DiLeo Anthony J. (Westford MA) Allegrezza ; Jr. Anthony E. (Milford MA) Burke Edmund T. (Winchester MA), Membrane, process and system for isolating virus from solution.
Charkoudian John (Carlisle MA) Pluskal Malcolm (Acton MA) Wang David (Lexington MA) Phoebe Charles (Uxbridge MA), Method and apparatus for covalent immobilization of charge- conjugated carbohydrate molecules.
Itoga Kiyoshi (Hyogo JPX) Tsutsumi Yoshio (Osaka JPX) Tsuji Masanori (Hyogo JPX) Tatebayashi Ayako (Osaka JPX), Nitrogen-containing molecular sieving carbon, a process for preparing the same and use thereof.
Fibiger Richard F. (Midland MI) Koo Ja-young (Plymouth MN) Forgach David J. (Midland MI) Petersen Robert J. (Minneapolis MN) Schmidt Donald L. (Midland MI) Wessling Ritchie A. (Midland MI) Stocker Th, Novel polyamide reverse osmosis membranes.
Dussert Bertrand W. (Pittsburgh PA) Farmer Richard W. (Gibsonia PA) Hayden Richard A. (Pittsburgh PA), Oxidized activated carbon for the control of pH and alkalinity in water treatment applications.
Beall George H. (106 Woodland Dr. Big Flats NY 14814) Gadkaree Kishor P. (273 Orchard Dr. Big Flats NY 14814) Grandi Thomas P. (303 Home St. Elmira NY 14904) Quinn Candace J. (419 Hornby Rd. Corning , Polymer membranes for separation process.
Beall George H. (Big Flats NY) Gadkaree Kishor P. (Big Flats NY) Grandi Thomas P. (Elmira NY) Quinn Candace J. (Corning NY), Polymer membranes for separation processes.
Gsell Thomas C. (Glen Cove NY) Rothman Isaac (Brooklyn NY) Smith ; III Paul C. (Lindenhurst NY) Chambers Jeffrey K. (Huntington NY), Polymeric microfiber filter medium.
McCausland Calvin W. (165 North ; 1300 East Springville UT 84663) Palombo Louis A. (622 North ; 300 East Spanish Fork UT 84660), Portable water purification system.
Hembree Richard D. (Minneapolis MN) Sullivan Brian F. (Minneapolis MN) Carmein David E. E. (Minneapolis MN), Portable water purification system including a filter cleaning mechanism.
Bowman Dennis E. (2637 Whitewood Ave. Ann Arbor MI 48104), Refect water drain line installation system and apparatus for under sink reverse osmosis filter system.
Bowman Dennis E. (2637 Whitewood Ann Arbor MI 48104), Reject water drain line installation system and apparatus for under sink reverse osmosis filter system.
Gales Michael A. (New York NY) Magidson Stanley I. (Morristown NJ) Wistrand John (New Canaan CT) Guy Donald B. (Park Ridge NJ), Reverse osmosis water purifier.
Davis Thomas E. (Lafayette CA) Schmidt Donald L. (Midland MI) Kau Jee I. (Concord CA) Wessling Ritchie A. (Midland MI) Whipple Sharon S. (Sanford MI) Fibiger Richard F. (Midland MI) Pickelman Dale M., Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups.
Linder Charles (Rehovot ILX) Aviv Gershon (Tel Aviv ILX) Perry Mordechai (Petach Tikvah ILX) Kotraro Reuven (Rehovot ILX), Semipermeable encapsulated membranes, process for their manufacture and their use.
Nachtman, Charles T.; Johll, Jr., William P.; Gideon, Helmut R. H.; Dunwoody, Timothy T.; Carr, Jamie C.; Scholz, Thomas, System for the production of laboratory grade ultrapure water.
Schmitt ; Jr. ; Joseph Lawrence ; Waker ; Jr. ; Philip Leroy ; Castelli on ; George Augustus, Use of carbon particulates with controlled density as adsorbents.
Devine Frank M. (1933 S. Broadway ; Suite 300 Los Angeles CA 90007) Shapiro Rod D. (1933 S. Broadway ; Suite 300 Los Angeles CA 90007), Water filter for home use.
Hampshire James F. ; Vitantonio Marc L. ; Metcalfe Gail S. ; Hrovat Terri S. ; Penrod Brian W., Water filteration pitcher with lid and cartridge receiving reservior.
Larkner Thomas J. ; Peake Steven C. ; Chomka Chester E. ; Tilp Joseph F. ; Willman Eric J. ; Leppert Kerry W. ; Timmerman Tina M., Water purification system and method including dispensed volume sensing and control.
Brancazio Diane M. (Cambridge MA) Gardner Susannah E. (Brookline MA) Hern Matthew D. (Boston MA) Lubrano Francis M. (Narragansett RI) Snow David A. (Barrington RI) Sykes David M. (Cambridge MA), Water purifier.
Slovak Jack P. (8952 Sailport Huntington Beach CA 92646) Slovak Robert A. (411 E. Edgewater Newport Beach CA 92660) Horn Douglas M. (3731 Bates Irvine CA 92714), Water purifier.
Padilla James M. (2038 Rancho La Merced Covina Heights CA 91724) Palmer Carl (514 E. Greenview Rd. La Habra Heights CA 90631) Taylor Bruce G. (168 Alling St. Kensington CT 06037), Water purifier cabinet or similar article.
Ha Dong-Kyu,KRX ; Lee Eun-Kwan,KRX, Water purifier having purified water storage tank and valve for discharging purified water before reaching the tank.
Jeon Je-Dal (Suwon KRX) Cho Moon-Hyun (Suwon KRX) Choi Sun-Yong (Seoul KRX) Lee Keun-Ho (Suwon KRX) Chung In-Seog (Suwon KRX), Water purifier with means for indicating when filter replacement is due and for automatically initiating a membrane wash.
Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
Kuennen, Roy W.; Lautzenheiser, Terry L.; Taylor, Jr., Roy M.; Stoner, Jr., William T.; Conrad, Kenneth E.; VanderKooi, Karen J.; Beals, Brian S.; Schamper, Ryan D., Gravity feed water treatment system.
Bahm, Jeannine Rebecca; Pearks, Andrew Thomas; Vidal, Guillermo Matias; Collias, Dimitris Ioannis; Mitchell, Michael Donovan; Astle, Robert E.; Faye, Katharine L. K.; Governal, Robert Andrew; Hamlin, Thomas J.; Lucht, Rebecca A.; Patel, Hemang, Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles.
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