WO2014108302A1 - Dispositif mobile de filtration liquide sous pression - Google Patents
Dispositif mobile de filtration liquide sous pression Download PDFInfo
- Publication number
- WO2014108302A1 WO2014108302A1 PCT/EP2013/077685 EP2013077685W WO2014108302A1 WO 2014108302 A1 WO2014108302 A1 WO 2014108302A1 EP 2013077685 W EP2013077685 W EP 2013077685W WO 2014108302 A1 WO2014108302 A1 WO 2014108302A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- container
- liquid
- filtration
- filter
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- C02F1/002—Processes for the treatment of water whereby the filtration technique is of importance using small portable filters for producing potable water, e.g. personal travel or emergency equipment, survival kits, combat gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
- B01D35/027—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
- B01D35/0276—Filtering elements with a vertical rotation or symmetry axis mounted on tanks or reservoirs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
- B01D35/306—Filter mounting adapter
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- 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
- C02F2201/008—Mobile apparatus and plants, e.g. mounted on a vehicle
-
- 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
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Definitions
- the field of the invention is that of liquid filtration systems under pressure, intended in particular to be implemented for the purification of water by passage under pressure in a ceramic type filter.
- the invention relates to an autonomous filtration device, compact and adapted to be easily transportable daily, while taking into account the maintenance of good hygiene and optimization of the purification process.
- US 2010/0237002 discloses a personal filtration device adaptable sealingly on the neck of a valve.
- the water expelled under pressure from the pipe is thus filtered by passing through a filter before being poured into a bottle.
- the use of this device therefore requires the user to be in the immediate vicinity of a specific water supply source, in this case a tap, which limits its mobility.
- the device does not include means for storing the filtered water. The filtered water is therefore intended to be consumed immediately or stored in an outer container, without preventing potential contamination of the water during the transfer in the latter.
- US 2010/0200489 discloses a water filter decanter pressure comprising two water tanks.
- the first reservoir is nested in the second so that the transfer of water from one reservoir to another can be carried out only by passing through a filter, itself consisting of a superposition of filter layers .
- the carafe is made hermetic by affixing a lid on which is fitted a pressurizing device in the form of a piston. By actuating the piston, the user injects air into the carafe, which accelerates the filtration process of the water contained in the first tank.
- the major drawbacks of this carafe are related to the introduction of the piston into the first container, which increases the risk of contamination of the piston by pathogens, as well as the rigid nature and complexity of the piston, making the latter more difficult to produce. but also more fragile.
- the invention aims to overcome at least some of the disadvantages present in the state of the art.
- the invention aims to provide a non-complex liquid pressure filtration device to combine a good autonomy of use, robustness to external shocks and the maintenance of good hygiene, while maintaining maximum compactness to can be easily stored or transported.
- the invention also aims to provide, in at least one embodiment, a filter device that can be easily mounted and disassembled, to facilitate the transport, cleaning the device and the loading of the latter water to be filtered.
- the invention also aims to provide, in at least one embodiment, a filtration device inside which can be adapted a filter in the form of a cartridge or allowing the realization of an ultrafiltration process.
- the invention also aims to provide, in at least one embodiment, a filtration device allowing the user, after loading the water to be filtered, to initiate the filtration process when desired.
- liquid filtration device comprising:
- a second receptacle intended to contain the liquid to be filtered, said second receptacle being contained at least partly in said first receptacle, the walls of said second receptacle having at least two openings: a filtration opening, capable of permitting a transfer of liquid between said first and said second reservoir, an injection opening,
- a pressurization device for injecting air into said second container via said injection opening
- said pressurizing device is a flexible device, located entirely outside said second container, and occupying a variable volume between two positions:
- a filtration device gives the user a good autonomy of use, comprising within its structure means to store and filter the targeted liquid.
- the first and the second reservoir respectively contain the filtered liquid and filter.
- the user is therefore not subject to the need to be near a liquid supply source to operate the device, nor to use a third collection container to collect the filtered liquid.
- the presence of a pressurizing means makes it possible to accelerate the filtration process.
- This pressurizing means being located outside the second container, thus limiting the introduction of foreign bodies inside the second container or the pressurizing device, and therefore the risk of contamination related thereto. Indeed, in the opposite hypothesis, bringing the pressurizing means into contact with the liquid to be filtered contained in the second container would increase the probability of mutual exchange of pathogens.
- a first charge of liquid to be filtered could for example initially contaminate the pressurizing device before the latter in turn contaminates a second charge of liquid to be filtered, thereby making the action of the filter more complex.
- the location of the pressurizing device outside the second container therefore limits these adverse effects as well as the constraints related to the cleaning of the pressurizing device.
- the pressurizing device is, in the absence of action of the user, in a stable position in which the volume occupied by the pressurizing device is minimal.
- the filtration device therefore has, when at rest, a maximum compactness, which facilitates its storage in a reduced volume for storage or transport purposes.
- the compactness of the pressurizing device and its flexible nature are further indications of a strengthening of the entire structure allowing the pressurizing device to better withstand external mechanical shocks that may be caused.
- the filtration device is therefore more robust.
- the filtration device comprises a seal adapted on the second receptacle so as to close off the injection opening and allowing only a unidirectional passage of the air from the outside. inwardly of said second container.
- the seal does not allow air or liquid to be transferred from the second container to the pressurizing device, in particular between the different air injection phases of the pressurizing device in the second. container.
- the pressure equilibrium inside the second container is achieved by transferring liquid from the second to the first container through the filter.
- the action of the pressurizing device on the filtration process is therefore reinforced by the arrangement of the seal.
- the gasket also makes it possible to limit the contamination of the pressurization device by the second container, which has the technical effect of improving the hygiene of the filtration device, reducing the cleaning costs of the pressurizing device and increase the life of the latter.
- the seal is adapted to the second container removably.
- the seal may be disaggregated from the second container by the user so as to allow the charging of liquid to be filtered from the second container, the cleaning of the device or the replacement of a defective part.
- the filtration device comprises a protective cover of the pressurization device.
- the filtration device comprises removable attachment means of the protective cover on the second container.
- the protective cover when the protective cover is arranged with the second container, it allows the filter device to have an additional sealing means while reinforcing the robustness of the filtration device.
- the filtration device comprises removable fixing means of said pressurizing device on the second container.
- the pressurizing device when the pressurizing device is arranged on the second container, it allows the filtration device to have a sealing means additional while reinforcing the robustness of the filtration device.
- the removable nature of this attachment means allows a user to disassemble these different parts in order to facilitate their transport, maintenance or the liquid loading of the second container.
- the filter is at least partly ceramic and has a tubular shape, hollow, closed on a first end, a second end closing said filter opening.
- Filtration by ceramic filter is generally extremely fine, of the order of 0.2 microns, because of the tiny pores that constitute its microstructure.
- the use of a ceramic filter thus makes it possible to stop microorganisms dangerous to health such as viruses or bacteria.
- the conformation of the "cartridge” filter makes it possible to maximize the filtering surface in contact with the filtered liquid, with the objective of increasing the efficiency of the filter.
- It can also be envisaged to use an airtight filter, so that only liquid fluids can pass through.
- the filtration process can remain effective in the case of a partial immersion of the filter in the liquid to be filtered.
- the pore size of at least one membrane of said filter is between 0.1 and 0.001 micron.
- ultrafiltration When the pore size of a ceramic filter is between 0.1 and 0.001 micron, it is called ultrafiltration. Unlike conventional filtration that limits the passage of large molecules retaining them in its pore network, ultrafiltration blocks impurities at the entrance of the network, allowing only very small molecules to pass. These impurities can then be eliminated by the dynamic effect of the fluid in local contact with the filter or following a simple cleaning. As a result, the efficiency of the filter and its life are considerably increased, the risks of bacterial contamination of the interior of the filter are reduced and the cleaning is made easier. On the other hand, because of the reduction in the pore size, the operation of this method imposes the existence of a pressure differential between the walls of the filter, which justifies the use of a pressurizing means in the frame. of the invention.
- the filtration device comprises an outlet opening for the filtered liquid, closed in the folded position.
- the closure of the discharge opening when the filtration device is at rest makes it possible to ensure the tightness of the first container and to limit the risks of bacterial contamination of the filtered water contained in the latter.
- the second container is divided into two compartments by a bulkhead which comprises in its upper part an opening adapted to allow the transfer of said liquid from one of said compartments to the other, by the tilting of said filter device in a lateral direction.
- the user has the capacity, by transferring the liquid from the first to the second compartment, initiate the filtration process according to its convenience and, if necessary, long after the water has been loaded into the filtration device. This limits the risk of bacterial growth that may result from prolonged stagnation of the filtered water in the first reservoir.
- FIG. 1 is a telescoped perspective view of the filtration device
- FIG. 2 is a schematic view of the ceramic filter
- FIG. 3 is a schematic view of the filtration device in position folded after loading the liquid
- FIG. 4 is a schematic view of the filtration device in the deployed position
- FIG. 5 is a schematic view of the filtration device in the folded position, after filtration of the liquid
- FIG. 6a is a schematic view of the first tank in liquid loading position of the first compartment
- FIG. 6b is a schematic view of the first reservoir in the transfer position of the liquid from the first to the second compartment
- FIG. 6c is a schematic view of the first reservoir in the initiation position of the filtration process.
- each element of the filtration device is described as arranged when the base of the first container is mounted horizontally. This arrangement is shown in particular in FIGS. 1, 3, 4, 5, 6a and 6c.
- the filtration device 1 comprises a first receptacle 2, having the shape of the lower section of a bottle, provided on its lower part with a base 2a enabling it to be laid with stably on a flat surface, and on its upper part, an open section SI, oriented in a substantially horizontal plane.
- the first container 2 may comprise, on at least one of its side walls, a handle, non-slip surfaces, or an ergonomic design allowing easy handling of the first container 2.
- a second container 3 is composed of a reservoir 3a, of volume at least two times smaller than that of the first container 2, having on one of its walls an opening called filter opening S2, and on its upper part, an open section S3 , oriented in a substantially horizontal plane, and having on its outer circumference a collar 3b.
- This flange 3b is sized so as to cover the entire circumference of the open section SI, when the reservoir 3a is introduced into the first container 2.
- the first container 2 is then hermetically sealed by the second container 3 with the exception of the filter opening S2 and a discharge opening S4 formed in the collar 3b.
- a seal 4 is removably arranged, by screwing, on the upper part of the second container 3, so as to close its open section S3.
- This seal 4 comprises at its center a valve 4a which allows the passage of air only from the outside to the inside of the second container 3.
- a cap 5 is removably fitted on the seal 4 in order to protect the latter from external mechanical shocks.
- This cap 5 has in its center an opening S5 allowing the passage of air.
- the filtration device 1 also comprises a pressurizing device 6 comprising a first seal called injection seal 6a and a second seal called said seal 6b, both placed in substantially horizontal planes and separated the one of the other by a flexible element of tubular form 6c, expandable mainly in a vertical direction and defining with the injection joint 6a and the loading joint 6b a hermetic cavity 6d of variable volume V.
- the loading joint 6b and the injection joint 6a each comprise in their center a valve allowing only a unidirectional passage of the air and respectively allowing the entry and the exit of air in the cavity 6d.
- a compressor spring 6e connecting the respective centers of the injection joint 6a and the loading joint 6b tends to oppose the removal of the two seals.
- a protective cover 7, of concave shape and having an open section substantially identical to SI, is fixed, cavity oriented downwards, on the outer face of the loading joint 6b.
- the protective cover 7 has an opening S6, allowing an air passage, the center of which is included in the axis X defined by the respective centers of the injection joint 6a and the loading joint 6b.
- the distance D separating the injection joint 6a from the loading joint 6b varies, as a function of the displacement of the latter, along the axis X, between two positions: a position called the folded position, characterized in that the distance D reaches its minimum value, and a position called the extended position, characterized in that the distance D reaches its maximum value.
- the extreme values taken by the distance D are determined by the capacity of the flexible element of tubular shape 6c to extend and contract along the axis X.
- the volume V being proportional to the distance D, the volume V therefore reaches in the respectively folded and deployed positions its minimum and maximum values.
- the displacement of the loading joint 6b with respect to the injection joint 6a along the X axis is governed by the work of the extension force exerted by the user and the return force exerted by the compression spring 6e.
- the protective cover 7 comprises on its external face 7a holds allowing the fingers of a user to have a better grip.
- the pressurizing device 6, in the absence of action of a user tends to return to the folded position, under the effect of the compressor spring 6e.
- the outer face of the injection joint 6a is arranged by a removable screw fastening on the flange 3b, so that the respective centers of the open sections S3 and S5 and the valve 4a are aligned along the X axis.
- the protective cover 7 and the flange 3b are, when the pressurizing device 6 is in the folded position, releasably secured by the use of opposing bias magnets.
- the ceramic filter 8 has a tubular shape, hollow, closed on a first end 8a, a second end 8b closing said filter opening S2.
- the filter 8 is removably attached to the bottom of the second container 3, by means of a screwing, so that the entire filter 8 is contained in the second container 3.
- the filter 8 is for filtration of water, with an average capacity of 5000 Liters, depending on the quality of the water to be filtered and the filter cleaning frequency 8.
- the targeted liquid is water.
- the water is replaced by another liquid and the filter is adapted accordingly.
- the removable fastening means described are screwing systems.
- screwing systems are replaced by interlocking systems or clips. These latter have the advantage of adapting to non-circular shapes. It is the elasticity of the material that then ensures the closure and sealing.
- the pressurizing device 6, the cap 5 and the seal 4 are disaggregated so as to release access to the reservoir 3a of the second container 3.
- the user then fills the reservoir 3a. of water.
- the seal 4, the cap 5 and the pressurization device 6 in the folded position are re-arranged on the rest of the filtration device 1, as represented by FIG.
- the user produces a tensioning force on the pressurization device 6, via the sockets 7a, and tends to move the loading seal 6b away from the injection joint 6a by translation along the axis X.
- This work is opposed to that of the compressor spring 6e.
- the volume V of the cavity 6d increases proportionally with the distance D, generating a differential pressure between the inside and the outside of the cavity 6d which in turn causes the opening of the valve of the loading joint 6b and the air inlet inside the cavity 6d.
- the user produces a compression force on the pressurizing device 6, and tends to bring the loading joint 6b of the injection joint 6a by translation along the X axis.
- This work is added to that of the compressor spring 6e.
- the volume V of the cavity 6d decreases proportionally to the distance D, generating a differential pressure between the inside and the outside of the cavity 6d which in turn generates the opening of the valve of the injection joint 6a and the valve 4a, and the air transfer from the cavity 6a to the tank 3a of the second container 3.
- the supply of air into the second container 3 generates a pressure differential between the first container 2 and the second container 3, which generates a transfer of water, the second container 3 to the first container 2, through the filter 8.
- the pressurizing device 6 is in the folded position, closing off the discharge opening S4.
- the second container 2 is divided into two compartments by a sealed partition 9 which comprises in its upper part an opening S5.
- the first compartment 9a is intended to collect the water loaded into the filtration device by the user.
- the second compartment 9b has the filter opening S2 around which the filter 8 is fixed.
- the water is introduced into the compartment 6a by the user.
- the filter device is tilted by the user so as to allow the water initially contained in the first compartment 9a to be transferred into the second compartment 9b.
- the water transferred into compartment 6c is in position to be filtered.
- the different operating phases of the filtration device 1 can then be implemented as described above.
- the seals 4, 6a, 6b and the tube of expandable tubular shape 6d are made of rubber, because of its impermeability and its good elasticity.
- the other parts constituting the filtration device 1, apart from the filter, are made of plastic, because of the lightness, the low production costs, the low reactivity chemical resistance and good impact resistance of this material.
- the walls of the first container 2 and the protective cover 7 are made of aluminum, because of the low thermal conduction of this material. The embodiment device according to this filtration mode thus has a better ability to maintain the coolness or heat of the treated liquid.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380070018.2A CN105143110A (zh) | 2013-01-10 | 2013-12-20 | 用于在压力下过滤液体的移动装置 |
| US14/759,223 US20150352473A1 (en) | 2013-01-10 | 2013-12-20 | Mobile device for filtering liquid under pressure |
| BR112015016480A BR112015016480A2 (pt) | 2013-01-10 | 2013-12-20 | dispositivo de filtração de líquido |
| DE112013006394.8T DE112013006394T5 (de) | 2013-01-10 | 2013-12-20 | Mobile Druckfilteranlage für Flüssigkeiten |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1300037A FR3000686B1 (fr) | 2013-01-10 | 2013-01-10 | Dispositif mobile de filtration de liquide sous pression |
| FR1300037 | 2013-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014108302A1 true WO2014108302A1 (fr) | 2014-07-17 |
Family
ID=48083291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/077685 Ceased WO2014108302A1 (fr) | 2013-01-10 | 2013-12-20 | Dispositif mobile de filtration liquide sous pression |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150352473A1 (fr) |
| CN (1) | CN105143110A (fr) |
| BR (1) | BR112015016480A2 (fr) |
| DE (1) | DE112013006394T5 (fr) |
| FR (1) | FR3000686B1 (fr) |
| WO (1) | WO2014108302A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9868627B2 (en) * | 2015-02-19 | 2018-01-16 | Paul BATISTAKIS | Combination spout and filter, particularly for paint barrels |
| CN109938547A (zh) * | 2019-04-04 | 2019-06-28 | 尹亨建 | 一种滤水壶 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2130786A1 (fr) * | 2007-03-13 | 2009-12-09 | Obschestvo S Ogranichennoi Otvetstvennostiyu "Eurostandart" | Dispositif de traitement et de purification d'un produit liquide |
| US20100200489A1 (en) * | 2009-02-11 | 2010-08-12 | Pinhung Peng | Pressure Filter Type Water Kettle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3533924A1 (de) * | 1985-09-24 | 1987-06-19 | Schumacher Sche Fab Verwalt | Filterkoerper und verfahren zu dessen herstellung |
| US5746113A (en) * | 1995-06-09 | 1998-05-05 | Ko; Lily | Infusion vessel |
| US6136188A (en) * | 1998-10-22 | 2000-10-24 | Rajan; Pasupathicoil R. Soundar | Water cap with built-in filter and air pump |
-
2013
- 2013-01-10 FR FR1300037A patent/FR3000686B1/fr not_active Expired - Fee Related
- 2013-12-20 CN CN201380070018.2A patent/CN105143110A/zh active Pending
- 2013-12-20 US US14/759,223 patent/US20150352473A1/en not_active Abandoned
- 2013-12-20 BR BR112015016480A patent/BR112015016480A2/pt not_active IP Right Cessation
- 2013-12-20 DE DE112013006394.8T patent/DE112013006394T5/de not_active Withdrawn
- 2013-12-20 WO PCT/EP2013/077685 patent/WO2014108302A1/fr not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2130786A1 (fr) * | 2007-03-13 | 2009-12-09 | Obschestvo S Ogranichennoi Otvetstvennostiyu "Eurostandart" | Dispositif de traitement et de purification d'un produit liquide |
| US20100200489A1 (en) * | 2009-02-11 | 2010-08-12 | Pinhung Peng | Pressure Filter Type Water Kettle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112013006394T5 (de) | 2015-09-24 |
| FR3000686A1 (fr) | 2014-07-11 |
| US20150352473A1 (en) | 2015-12-10 |
| CN105143110A (zh) | 2015-12-09 |
| FR3000686B1 (fr) | 2015-02-06 |
| BR112015016480A2 (pt) | 2017-07-11 |
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