US20090123347A1 - Fluid treatment system - Google Patents
Fluid treatment system Download PDFInfo
- Publication number
- US20090123347A1 US20090123347A1 US12/352,106 US35210609A US2009123347A1 US 20090123347 A1 US20090123347 A1 US 20090123347A1 US 35210609 A US35210609 A US 35210609A US 2009123347 A1 US2009123347 A1 US 2009123347A1
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- Prior art keywords
- chamber
- water
- fluid
- treatment
- treatment cartridge
- Prior art date
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- 239000012530 fluid Substances 0.000 title claims abstract description 63
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 238000004891 communication Methods 0.000 claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 2
- 229910010293 ceramic material Inorganic materials 0.000 claims 1
- 238000001223 reverse osmosis Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 46
- 235000012206 bottled water Nutrition 0.000 abstract description 9
- 239000003651 drinking water Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 3
- 235000020188 drinking water Nutrition 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 244000005700 microbiome Species 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010841 municipal wastewater Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 206010073306 Exposure to radiation Diseases 0.000 description 1
- 206010060800 Hot flush Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/10—Accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/08—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
- C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/08—Regeneration of the filter
- B01D2201/088—Arrangements for killing microorganisms
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3225—Lamps immersed in an open channel, containing the liquid to be treated
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/04—Location of water treatment or water treatment device as part of a pitcher or jug
Definitions
- the present invention relates to a fluid treatment system, more particularly, an integrated system that treats water by filtration and by exposure to radiation, preferably ultraviolet radiation.
- the present invention relates to a method for treating a fluid, more particularly a method for irradiating water.
- Fluid treatment systems are generally known in the art. More particularly, ultraviolet (UV) radiation fluid treatment systems are generally known in the art. Many of the known radiation treatment systems have been designed for treatment of large volumes of fluid (typically wastewater) on a commercial scale. Thus, many of these known fluid treatment systems have been implemented in municipal wastewater treatment plants (i.e., treatment of water that is discharged to a river, pond, lake or other such receiving stream), municipal drinking water treatment plants, industrial wastewater treatment plants and the like.
- municipal wastewater treatment plants i.e., treatment of water that is discharged to a river, pond, lake or other such receiving stream
- municipal drinking water treatment plants i.e., municipal drinking water treatment plants, industrial wastewater treatment plants and the like.
- Closed fluid treatment devices are known—see, for example, U.S. Pat. Nos. 5,471,063 (in the name of Hayes et al. and assigned to the assignee of the present invention) and 5,504,335 (in the name of Maarschalkerweerd and assigned to the assignee of the present invention). See also U.S. Pat. No. 6,500,346[Taghipour et al. (Taghipour) and assigned to the assignee of the present invention].
- filter units available from retail outlets.
- Non-limiting examples of such filtered units include the BritaTM system, the MoenTM filter system and the like.
- these filter systems may involve a cartridge element which is placed in a pitcher or other container for water or they are fixed to a faucet.
- these filter systems are useful to remove particulates and, in some cases, “taste” and/or “odour” from the water being treated, they are unable to remove many micro organisms.
- some filter systems are disadvantageous since the filter media itself is susceptible to collection, growth and/or release of the very microorganisms which are removed from the water.
- a relatively small scale water treatment system which can receive municipal drinking water and treat that water to remove (or at least reduce to a low level) contaminants that may be present in the drinking water—e.g., microorganisms, particulate material, non-living contaminants (e.g., organic compounds, oxidants and the like). It would be particularly useful to have such a device sized and styled in a matter that can be used as an “on-the-counter” appliance in a domicile. In addition, it would particularly beneficial if such a system were relatively low maintenance, easy to install and easy to use.
- the present inventions provides a fluid treatment system comprising:
- the present invention provides a water treatment appliance comprising:
- the present invention provides a treatment cartridge for use in a fluid treatment system, the treatment cartridge comprising a first chamber and a second chamber in fluid communication with one another, the first chamber comprising a fluid inlet for entry of fluid into the cartridge and the second chamber comprising a fluid outlet for exit of fluid from the cartridge, one of the first chamber and the second chamber having disposed therein a filter element and the other of the first chamber and the second chamber having disposed therein a radiation source.
- fluid is intended to have a broad meaning and encompasses liquids and gases.
- the preferred fluid for treatment with the present system is a liquid, preferably water (e.g., potable water and the like).
- FIG. 1 illustrates a perspective view of a preferred embodiment of the present fluid treatment system
- FIG. 2 illustrates an exploded view a portion of the fluid treatment system illustrated in FIG. 1 ;
- FIG. 3 illustrates a sectional view of the element of the fluid treatment system illustrated in FIG. 2 .
- FIG. 1 there is illustrated a perspective view of a fluid treatment system 100 in accordance with a preferred embodiment of the present invention.
- Fluid treatment system 100 comprises a removable reservoir 110 that is removably engageable with respect to a base unit 115 . Disposed on base unit 115 is a housing 120 . Removable reservoir 110 and housing 120 are in fluid communication using appropriate valves, seals and the like (not shown for clarity).
- Housing 120 comprising an opening 125 for receiving a removable cartridge 130 .
- Removable cartridge 130 will be discussed in more detail below.
- a removable lid 135 Disposed on housing 120 is a removable lid 135 which can be removed from housing 120 to access removable cartridge 130 .
- Fluid treatment system 100 further comprises a control panel 140 that includes a dispensing spigot (or spout) 145 .
- a switch 150 e.g., a membrane switch or any other type of switch for actuating fluid treatment system 100 .
- a drip tray 155 Disposed below removable reservoir 110 is a drip tray 155 that includes a removable grill 160 .
- control panel 140 comprises the appropriate circuitry which will notify a user in one or more of the following situations:
- circuitry and components to achieve these functions is within the purview of a person of skill in the art and will not be discussed in detail herein.
- removable cartridge 130 comprises a first chamber 165 and a second chamber 170 .
- first chamber 165 Disposed in first chamber 165 is an annular filter element 175 .
- second chamber 170 Disposed in second chamber 170 is ultraviolet radiation lamp 180 .
- a lid 182 is placed atop filter element 175 .
- Lid 185 comprises an inlet 190 for receiving water from removable reservoir 110 .
- First chamber 165 comprises an outlet 195 in fluid communication with an inlet 200 of second chamber 170 .
- Second chamber 170 further comprises an outlet 205 in fluid communication with an outlet 210 disposed on lid 185 .
- Outlet 210 is in fluid communication with dispensing spigot 145 .
- the arrangement of filter element 175 in first housing 165 defines an annular outer chamber 215 and an axial inner chamber 220 .
- inlet 190 is in fluid communication with outer chamber 215 and inner chamber 220 is in fluid communication with outlet 195 .
- removable cartridge 130 integrates the filter and radiation elements of the present fluid treatment system as a single replaceable unit or as a pair of elements which may be individually replaced.
- removable cartridge 130 is shaped to have a unique fitting arrangement with opening 125 in housing 120 .
- removable reservoir 110 When it is desired to treat water, removable reservoir 110 is removed from base unit 115 , for example, by using handle 112 . Water (e.g., tap water) is then dispensed to the removable reservoir 110 through inlet 114 in removable reservoir 110 . Once removable reservoir 110 has been filled, it is returned to base unit 115 .
- Water e.g., tap water
- control panel 140 contains appropriate circuitry to implement a prescribed delay (e.g., 10 seconds) to “preheat” ultraviolet radiation lamp 180 .
- a pump (not shown for clarity) disposed in base unit 115 is actuated and serves to withdraw water from removable reservoir 110 and feed it to inlet 190 of removable cartridge 130 .
- the water is fed from inlet 190 to outer chamber 215 .
- the pump creates sufficient pressure to force the water through filter element 175 such that it passes from annular outer chamber 215 to axial inner chamber 220 and on to outlet 195 .
- the water enters inlet 200 of second chamber 170 and passes through second chamber 170 and is exposed to ultraviolet radiation. After exposure to ultraviolet radiation, the water passes through outlet 205 of second chamber 170 and ultimately to spout 145 wherein it can be collected and used appropriately.
- FIG. 3 is particularly helpful in illustrating the flow of water through removable cartridge 130 .
- housing 120 it is possible to modify housing 120 to contain a second reservoir.
- a second reservoir could receive fluid from a version of removable cartridge 130 that has been modified to include an inlet/outlet (separate or integral) in fluid communication with the second reservoir (for example, the inlet/outlet could be interposed between outlet 195 of first chamber 165 and inlet 200 of second chamber 170 ).
- such a second reservoir could be configured such that fluid is fed from the second reservoir to inlet 190 of removable cartridge 130 .
- a chilling unit for chilling fluid contained in the second reservoir.
- housing 120 it is possible (in some case, preferred) to incorporate in housing 120 a chilling unit for chilling fluid contained in the second reservoir.
- housing 120 it is also possible to modify housing 120 to have the second reservoir of chilled fluid surrounding or substantially encasing removable cartridge 130 . This results in cooling of fluid in removable cartridge 130 .
- a chiller i.e., not necessarily via the second reservoir described above.
- it is possible to incorporate a control element such as an integrated circuit (e.g., a chip) in the present system, preferably mounted on removable cartridge 130 , for recording fluid flow through the system.
- Another modification of the illustrated embodiments of the invention relates to incorporation of a secondary reservoir between base unit 115 that contains the pump (not shown) and inlet 190 of removable cartridge 130 .
- the secondary reservoir can contain the chiller unit and thus provide chilled water to the carbon filter which will have the effect of reducing the growth of micro-organisms on the filter surface, thus increasing the life of the filter.
- Yet another modification of this arrangement relates to incorporation of a 2 way solenoid valve in a “T” flow diverter locate between second chamber 170 and outlet 210 , and with the addition of a line from the “T” flow diverter to the secondary reservoir (not shown), it will be possible for the system to be put into a re-circulation mode.
- a re-circulation mode will be advantageous particularly where a 185 nm UV lamp is used, as this will allow for the production of hydroxyl and peroxide oxidants that will provide for further water treatment and the control of bio-film production on the surfaces of the treatment system.
- the re-circulation mode can be intermittent or continuous and can be interrupted when the water is being dispensed.
- the pump can be activated when switch 150 on control panel 140 is depressed, then there can be a sufficient delay to allow for the UV lamp to reach an optimal output and for the pump to displace the water in chamber 165 and chamber 170 with chilled water.
- housing 120 with an insulation material such as a polyfoam body to insulate chilled (or heated) water contained therein.
- a flash hot water heater (or similar device) may be interposed between ultraviolet lamp radiation lamp 180 treatment zone and outlet 210 .
Abstract
There is disclosed a water treatment appliance, particularly for on-the-counter treatment of potable water. The appliance comprises: a base unit comprising a pump, a housing and a cooling unit for chilling water in the housing; a removable water reservoir engageable with the housing; a control panel comprising a water dispensing switch; an outlet for dispensing treated water from the fluid treatment system; and a treatment cartridge removably disposed in the housing. The treatment cartridge comprises a first chamber and a second chamber in communication with one another. The first chamber is in communication with the housing and has disposed therein a filter element. The second chamber is in communication with the outlet and has disposed therein an ultraviolet radiation lamp.
Description
- The present application claims the benefit under 35 U.S.C. §120 of U.S. patent application Ser. No. 11/106,711, now U.S. Pat. No. 7,476,312, issued Jan. 13, 2009, which claims the benefit under 35 U.S.C. §119(e) of Provisional Patent Appln. 60/562,233, filed Apr. 15, 2004, the contents of both incorporated herein by reference.
- 1. Field of the Invention
- In one of its aspects, the present invention relates to a fluid treatment system, more particularly, an integrated system that treats water by filtration and by exposure to radiation, preferably ultraviolet radiation. In another of its aspects, the present invention relates to a method for treating a fluid, more particularly a method for irradiating water.
- 2. Description of the Prior Art
- Fluid treatment systems are generally known in the art. More particularly, ultraviolet (UV) radiation fluid treatment systems are generally known in the art. Many of the known radiation treatment systems have been designed for treatment of large volumes of fluid (typically wastewater) on a commercial scale. Thus, many of these known fluid treatment systems have been implemented in municipal wastewater treatment plants (i.e., treatment of water that is discharged to a river, pond, lake or other such receiving stream), municipal drinking water treatment plants, industrial wastewater treatment plants and the like.
- For examples of fluid treatment system that have been applied in municipal wastewater treatment plants, see U.S. Pat. Nos. 4,482,809, 4,872,980, 5,006,244, 5,418,370, 5,539,210 and Re36,896 (all in the name of Maarschalkerweerd and all assigned to the assignee of the present invention) which describe gravity fed fluid treatment systems which employ ultraviolet (UV) radiation.
- In the field of municipal drinking water, it is known to utilize so-called “closed” fluid treatment systems or “pressurized” fluid treatment systems. Closed fluid treatment devices are known—see, for example, U.S. Pat. Nos. 5,471,063 (in the name of Hayes et al. and assigned to the assignee of the present invention) and 5,504,335 (in the name of Maarschalkerweerd and assigned to the assignee of the present invention). See also U.S. Pat. No. 6,500,346[Taghipour et al. (Taghipour) and assigned to the assignee of the present invention].
- In recent years, notwithstanding the significant advances made in fluid disinfection technology useful for treating municipal waste water and municipal drinking water, there has been an increasing need to improve the quality of water used on a domestic basis. This is led to a boom in the bottled water industry.
- In other words, even though government agencies have implemented stringent guidelines for treatment of water in municipal drinking water plants thereby improving the quality of water delivered to domiciles, the heightened awareness of having “purified” drinking water for domestic use has at least been responsible for the boom in the bottled water industry. Reliance on bottled water for drinking is fraught with a number of disadvantages, including:
-
- on a volume basis, bottled water is very expensive (typically, in many countries, the cost of bottled water exceeds the cost of fuel used to power automobiles);
- it is inconvenient to obtain (i.e., the user must purchase the bottled water in a desired volume, transport the volume to the domicile, etc);
- it requires adequate storage space in the domicile; and
- it creates an environmental issue in that empty bottles must be discarded after use.
- An alternative to using bottled water is to utilize filter units available from retail outlets. Non-limiting examples of such filtered units include the Brita™ system, the Moen™ filter system and the like. Typically, these filter systems may involve a cartridge element which is placed in a pitcher or other container for water or they are fixed to a faucet. Unfortunately, while these filter systems are useful to remove particulates and, in some cases, “taste” and/or “odour” from the water being treated, they are unable to remove many micro organisms. In addition, some filter systems are disadvantageous since the filter media itself is susceptible to collection, growth and/or release of the very microorganisms which are removed from the water.
- Another approach which has been used domestically is a radiation treatment system which can be obtained from a retail outlet and installed under a kitchen counter or elsewhere in the domicile. Such systems are particularly useful in disinfecting or otherwise inactivating microorganisms in the water. Unfortunately, these systems do not remove particulate matter and other non-living contaminants that may be present in the water.
- Thus, there remains a need in the art for a relatively small scale water treatment system which can receive municipal drinking water and treat that water to remove (or at least reduce to a low level) contaminants that may be present in the drinking water—e.g., microorganisms, particulate material, non-living contaminants (e.g., organic compounds, oxidants and the like). It would be particularly useful to have such a device sized and styled in a matter that can be used as an “on-the-counter” appliance in a domicile. In addition, it would particularly beneficial if such a system were relatively low maintenance, easy to install and easy to use.
- It is an object of the present invention to provide a novel fluid treatment system which obviates or mitigates at least one of the above-mentioned disadvantages of the prior art.
- In one of its aspects, the present inventions provides a fluid treatment system comprising:
-
- a removable reservoir for receiving a fluid;
- a treatment zone in fluid communication with the removable reservoir;
- a fluid filter element disposed in the treatment zone;
- a radiation source disposed in the treatment zone; and
- a system outlet for dispensing treated fluid from the treatment zone.
- In another of its aspects, the present invention provides a water treatment appliance comprising:
-
- a base unit comprising a pump, a housing and a cooling unit for chilling water in the housing;
- a removable water reservoir engageable with the housing;
- a control panel comprising a water dispensing switch;
- an outlet for dispensing treated water from the fluid treatment system; and
- a treatment cartridge removably disposed in the housing; the treatment cartridge comprising a first chamber and a second chamber in communication with one another, the first chamber in communication with the housing and having disposed therein a filter element and the second chamber in communication with the outlet and having disposed therein an ultraviolet radiation lamp.
- In yet another of its aspects, the present invention provides a treatment cartridge for use in a fluid treatment system, the treatment cartridge comprising a first chamber and a second chamber in fluid communication with one another, the first chamber comprising a fluid inlet for entry of fluid into the cartridge and the second chamber comprising a fluid outlet for exit of fluid from the cartridge, one of the first chamber and the second chamber having disposed therein a filter element and the other of the first chamber and the second chamber having disposed therein a radiation source.
- As used throughout this specification, the term “fluid” is intended to have a broad meaning and encompasses liquids and gases. The preferred fluid for treatment with the present system is a liquid, preferably water (e.g., potable water and the like).
- Those with skill in the art will recognize that there is reference throughout the specification to the use of seals and the like to provide a practical fluid seal between adjacent elements in the fluid treatment system. For example, those of skill in the art will recognize that it is well known in the art to use combinations of coupling nuts, O-rings, bushings, check-valves and like to provide a substantially fluid tight seal between abutting elements of the system.
- Embodiments of the present invention will be described with reference to the accompanying drawings, wherein like numerals designate like elements, and in which:
-
FIG. 1 illustrates a perspective view of a preferred embodiment of the present fluid treatment system; -
FIG. 2 illustrates an exploded view a portion of the fluid treatment system illustrated inFIG. 1 ; and -
FIG. 3 illustrates a sectional view of the element of the fluid treatment system illustrated inFIG. 2 . - With reference to
FIG. 1 there is illustrated a perspective view of afluid treatment system 100 in accordance with a preferred embodiment of the present invention. -
Fluid treatment system 100 comprises aremovable reservoir 110 that is removably engageable with respect to abase unit 115. Disposed onbase unit 115 is ahousing 120.Removable reservoir 110 andhousing 120 are in fluid communication using appropriate valves, seals and the like (not shown for clarity). -
Housing 120 comprising an opening 125 for receiving aremovable cartridge 130.Removable cartridge 130 will be discussed in more detail below. - Disposed on
housing 120 is aremovable lid 135 which can be removed fromhousing 120 to accessremovable cartridge 130. -
Fluid treatment system 100 further comprises acontrol panel 140 that includes a dispensing spigot (or spout) 145. Disposed oncontrol panel 140 is a switch 150 (e.g., a membrane switch or any other type of switch) for actuatingfluid treatment system 100. - Disposed below
removable reservoir 110 is a drip tray 155 that includes aremovable grill 160. - Preferably,
control panel 140 comprises the appropriate circuitry which will notify a user in one or more of the following situations: -
- indicate the power in ON or in IDLE mode;
- signal to indicate the UV lamp is gaining intensity;
- a low reservoir water indicator to show when to add water;
- a feature to select the quantity of water to be dispensed;
- when
system 100 is “processing” the water; - when it is time to replace the filter unit and/or the UV lamp in
removable cartridge 130; and - when one or both of the filter unit and the UV lamp in the removable cartridge is completely used and
system 100 will not process water.
- The circuitry and components to achieve these functions is within the purview of a person of skill in the art and will not be discussed in detail herein.
- With particular reference to
FIGS. 2-3 ,removable cartridge 130 comprises afirst chamber 165 and asecond chamber 170. Disposed infirst chamber 165 is anannular filter element 175. Disposed insecond chamber 170 isultraviolet radiation lamp 180. A lid 182 is placed atopfilter element 175. Of course it is possible to utilize a single lid (not shown) to cover bothfirst chamber 165 andsecond chamber 170. - An
integrated lid 185 is secured tofirst chamber 165.Lid 185 comprises aninlet 190 for receiving water fromremovable reservoir 110.First chamber 165 comprises anoutlet 195 in fluid communication with aninlet 200 ofsecond chamber 170.Second chamber 170 further comprises anoutlet 205 in fluid communication with anoutlet 210 disposed onlid 185.Outlet 210 is in fluid communication with dispensingspigot 145. - As can be seen, particularly with reference to
FIG. 3 , the arrangement offilter element 175 infirst housing 165 defines an annularouter chamber 215 and an axial inner chamber 220. As shown,inlet 190 is in fluid communication withouter chamber 215 and inner chamber 220 is in fluid communication withoutlet 195. - As is further apparent in
FIGS. 2 and 3 ,removable cartridge 130 integrates the filter and radiation elements of the present fluid treatment system as a single replaceable unit or as a pair of elements which may be individually replaced. Preferably,removable cartridge 130 is shaped to have a unique fitting arrangement with opening 125 inhousing 120. - When it is desired to treat water,
removable reservoir 110 is removed frombase unit 115, for example, by usinghandle 112. Water (e.g., tap water) is then dispensed to theremovable reservoir 110 throughinlet 114 inremovable reservoir 110. Onceremovable reservoir 110 has been filled, it is returned tobase unit 115. - Next, switch 150 on
control panel 140 is depressed thereby starting the system. Preferably,control panel 140 contains appropriate circuitry to implement a prescribed delay (e.g., 10 seconds) to “preheat”ultraviolet radiation lamp 180. After the warm-up period, a pump (not shown for clarity) disposed inbase unit 115 is actuated and serves to withdraw water fromremovable reservoir 110 and feed it toinlet 190 ofremovable cartridge 130. Next, under pressure from the pump (not shown) the water is fed frominlet 190 toouter chamber 215. The pump creates sufficient pressure to force the water throughfilter element 175 such that it passes from annularouter chamber 215 to axial inner chamber 220 and on tooutlet 195. - Next, the water enters
inlet 200 ofsecond chamber 170 and passes throughsecond chamber 170 and is exposed to ultraviolet radiation. After exposure to ultraviolet radiation, the water passes throughoutlet 205 ofsecond chamber 170 and ultimately to spout 145 wherein it can be collected and used appropriately. -
FIG. 3 is particularly helpful in illustrating the flow of water throughremovable cartridge 130. - While this invention has been described with reference to illustrative embodiments and examples, the description is not intended to be construed in a limiting sense. Thus, various modifications of the illustrative embodiments, as well as other embodiments of the invention, will be apparent to persons skilled in the art upon reference to this description. For example, it is possible to modify
housing 120 to contain a second reservoir. In one embodiment, such a second reservoir could receive fluid from a version ofremovable cartridge 130 that has been modified to include an inlet/outlet (separate or integral) in fluid communication with the second reservoir (for example, the inlet/outlet could be interposed betweenoutlet 195 offirst chamber 165 andinlet 200 of second chamber 170). Alternatively, such a second reservoir could be configured such that fluid is fed from the second reservoir toinlet 190 ofremovable cartridge 130. In either of these modified embodiments, it is possible (in some case, preferred) to incorporate in housing 120 a chilling unit for chilling fluid contained in the second reservoir. It is also possible to modifyhousing 120 to have the second reservoir of chilled fluid surrounding or substantially encasingremovable cartridge 130. This results in cooling of fluid inremovable cartridge 130. Alternatively, it is possible simply to coupleremovable cartridge 130 with a chiller (i.e., not necessarily via the second reservoir described above). Also, it is possible to incorporate a control element such as an integrated circuit (e.g., a chip) in the present system, preferably mounted onremovable cartridge 130, for recording fluid flow through the system. - Another modification of the illustrated embodiments of the invention relates to incorporation of a secondary reservoir between
base unit 115 that contains the pump (not shown) andinlet 190 ofremovable cartridge 130. In this embodiment the secondary reservoir can contain the chiller unit and thus provide chilled water to the carbon filter which will have the effect of reducing the growth of micro-organisms on the filter surface, thus increasing the life of the filter. - Yet another modification of this arrangement relates to incorporation of a 2 way solenoid valve in a “T” flow diverter locate between
second chamber 170 andoutlet 210, and with the addition of a line from the “T” flow diverter to the secondary reservoir (not shown), it will be possible for the system to be put into a re-circulation mode. Such re-circulation will be advantageous particularly where a 185 nm UV lamp is used, as this will allow for the production of hydroxyl and peroxide oxidants that will provide for further water treatment and the control of bio-film production on the surfaces of the treatment system. The re-circulation mode can be intermittent or continuous and can be interrupted when the water is being dispensed. To deliver chilled water when the re-circulation is non-continuous, the pump can be activated whenswitch 150 oncontrol panel 140 is depressed, then there can be a sufficient delay to allow for the UV lamp to reach an optimal output and for the pump to displace the water inchamber 165 andchamber 170 with chilled water. - In yet another modification, it is possible to line
housing 120 with an insulation material such as a polyfoam body to insulate chilled (or heated) water contained therein. - In yet another modification, a flash hot water heater (or similar device) may be interposed between ultraviolet
lamp radiation lamp 180 treatment zone andoutlet 210. - It is therefore contemplated that the appended claims will cover any such modifications or alternate embodiments.
- All publications, patents and patent applications referred to herein are incorporated by reference in their entirety to the same extent as if each individual publication, patent or patent application was specifically and individually indicated to be incorporated by reference in its entirety.
Claims (13)
1. A treatment cartridge for use in a fluid treatment system, the treatment cartridge comprising a first chamber and a second chamber in fluid communication with one another, the first chamber comprising a fluid inlet for entry of fluid into the cartridge and the second chamber comprising a fluid outlet for exit of fluid from the cartridge, one of the first chamber and the second chamber having disposed therein a filter element and the other of the first chamber and the second chamber having disposed therein a radiation source.
2. The treatment cartridge defined in claim 1 , wherein the filter element comprises particulate carbon, preferably a carbon block filter.
3. The treatment cartridge defined in claim 1 , wherein the filter element comprises a membrane material, preferably a reverse osmosis membrane material.
4. The treatment cartridge defined in claim 1 , wherein the filter element comprises a ceramic material.
5. The treatment cartridge defined in claim 1 , wherein the filter element is elongate.
6. The treatment cartridge defined in claim 1 , wherein the filter element is annular.
7. The treatment cartridge defined in claim 1 , wherein the filter element is elongate and annular.
8. The treatment cartridge defined in claim 1 , wherein the fluid filter element is disposed in a first chamber and the radiation source is disposed in the second chamber.
9. The treatment cartridge defined in claim 1 , wherein the first chamber and the second chamber are releasably engageable.
10. The treatment cartridge defined in claim 1 , wherein the fluid filter element is elongate and annular, and is disposed in the first chamber to define an annular outer chamber and an axial inner chamber.
11. The treatment cartridge defined in claim 10 , wherein the fluid inlet is in fluid communication with the annular outer chamber.
12. The treatment cartridge defined in claim 1 , wherein the radiation source is elongate.
13. The treatment cartridge defined in claim 1 , wherein the radiation source comprises an ultraviolet radiation source.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/352,106 US20090123347A1 (en) | 2004-04-15 | 2009-01-12 | Fluid treatment system |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56223304P | 2004-04-15 | 2004-04-15 | |
US11/106,711 US7476312B2 (en) | 2004-04-15 | 2005-04-15 | Fluid treatment system |
US12/352,106 US20090123347A1 (en) | 2004-04-15 | 2009-01-12 | Fluid treatment system |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/106,711 Continuation US7476312B2 (en) | 2004-04-15 | 2005-04-15 | Fluid treatment system |
Publications (1)
Publication Number | Publication Date |
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US20090123347A1 true US20090123347A1 (en) | 2009-05-14 |
Family
ID=35149904
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US11/106,711 Expired - Fee Related US7476312B2 (en) | 2004-04-15 | 2005-04-15 | Fluid treatment system |
US12/352,106 Abandoned US20090123347A1 (en) | 2004-04-15 | 2009-01-12 | Fluid treatment system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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US11/106,711 Expired - Fee Related US7476312B2 (en) | 2004-04-15 | 2005-04-15 | Fluid treatment system |
Country Status (3)
Country | Link |
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US (2) | US7476312B2 (en) |
CN (2) | CN1942402B (en) |
WO (1) | WO2005100251A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
CN1942402A (en) | 2007-04-04 |
WO2005100251A1 (en) | 2005-10-27 |
CN1942402B (en) | 2012-04-25 |
CN102557313A (en) | 2012-07-11 |
US20050247609A1 (en) | 2005-11-10 |
US7476312B2 (en) | 2009-01-13 |
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