Abstract: The present patent application relates to a device (1) for measuring the conductivity of a liquid, which comprises a measuring chamber for containing a sampling volume to be irradiated with UV rays formed in a hydraulic body (4) which comprises an inlet channel for feeding the measuring chamber with liquid to be measured and an outlet channel for removing the measured liquid from the measuring chamber, the inlet channel and the outlet channel emerging on either side beyond a surface exposed to the UV rays, such that only the sampling volume contained in the measuring chamber is irradiated. The present patent application is also directed towards a use of such a device and to a purification system comprising such a device.

Abstract: The invention concerns a treated water purification system (18) comprising a closed water flow loop (107) said loop comprising at least one treated water supply point (A), at least one point of use (U) of purified water, a pump means (101), a sterilization means (106) and a filtration means (103), characterized in that the zone (106) comprises the supply point (A) and a water extraction point (P), situated upstream of the supply point (A), and in that the extraction point (P) and the supply point (A) are both situated in a sector (106B) of the sterilization zone (106) that is isolated from the two connection points (RM, RV) of the loop (107) to the zone (106) by two other sectors (106A, 106C) of the zone (106). Method for use of such a system.

Abstract: The invention concerns a treated water purification system (107) comprising a water flow loop (110), said loop (110) being closed onto a tank (10) of treated water to purify, and said loop (110) successively comprising, in the direction of flow of the water downstream of the tank (10), at least one pump means (102), at least one first filtration means (103), at least one second filtration means (104) and at least one point of use (U), the system (107) being characterized in that it further comprises at least one diversionary pipe (112) linking the first filtration means (103) to the tank (10), and a loop return pipe (114) linking the second filtration means (104) to the tank (10). Method for use of such a system.

Abstract: A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

Abstract: A biocidal purification reactor, including a main cylinder tube (1A;1B), at least one end cap (2A,2B,2C) closing at least one axial end opening of the main cylinder tube (1A;1B), at least two ports (3A,3B) communicating with the interior volume (4) of the main cylinder tube (1A;1B) in the vicinity of the respective axial ends of the cylinder tube (1A;1B), and at least one of said end caps (2A) or said main cylinder tube (1B) including a UV-light source (7A;7B).

Abstract: A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

Abstract: A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

Abstract: A biocidal fluid purification cap (2) for a fluid container (1), preferably one storing purified water for use in laboratory environments and especially purified water for cell culture and water for molecular biology. The purification cap (2) includes a cap body (3) including an engagement feature (20) for removably attaching the cap body (3) to a mating engagement feature on a spout of the fluid container (1) to hermetically close a spout opening, at least one LED (7a) adapted to emit light in the UV-C range, electronic circuitry (15) for driving the LED(s) (7a), and a power supply for the electronic circuitry (15). The LED(s) (7a) is/are arranged in said cap body (3) so as to be separated from the environment by an UV-transparent window (6) provided in the cap body (3) such that light emitted from said LED(s) (7a) enters the opening of the spout when the cap (2) is attached to the spout of the container (1).

Abstract: A biocidal purification reactor, including a main cylinder tube (1A;1B), at least one end cap (2A,2B,2C) closing at least one axial end opening of the main cylinder tube (1A;1B), at least two ports (3A,3B) communicating with the interior volume (4) of the main cylinder tube (1A;1B) in the vicinity of the respective axial ends of the cylinder tube (1A;1B), and at least one of said end caps (2A) or said main cylinder tube (1B) including a UV-light source (7A;7B).

Abstract: The present patent application relates to a device (1) for measuring the conductivity of a liquid, which comprises a measuring chamber for containing a sampling volume to be irradiated with UV rays formed in a hydraulic body (4) which comprises an inlet channel for feeding the measuring chamber with liquid to be measured and an outlet channel for removing the measured liquid from the measuring chamber, the inlet channel and the outlet channel emerging on either side beyond a surface exposed to the UV rays, such that only the sampling volume contained in the measuring chamber is irradiated. The present patent application is also directed towards a use of such a device and to a purification system comprising such a device.

Abstract: The invention consists in a disposable module (31) for purifying a fluid, in particular water, adapted to form part of a thud purification system and comprising fluid purification means (25, 28), a housing (35) in which the purification means are housed, and means for removably connecting the purification module (31) to the purification system to establish fluid communication between the purification system and the purification module (31), characterized in that the housing (35) contains from the outset a cleaning agent (36) disposed to come into contact with the fluid caused to circulate inside the housing (35) to clean at least a portion of the purification system, it also consists in the purification system and corresponding fabrication and cleaning methods.

Abstract: The invention concerns a treated water purification system (18) comprising a closed water flow loop (107) said loop comprising at least one treated water supply point (A), at least one point of use (U) of purified water, a pump means (101), a sterilization means (106) and a filtration means (103), characterized in that the zone (106) comprises the supply point (A) and a water extraction point (P), situated upstream of the supply point (A), and in that the extraction point (P) and the supply point (A) are both situated in a sector (106B) of the sterilization zone (106) that is isolated from the two connection points (RM, RV) of the loop (107) to the zone (106) by two other sectors (106A, 106C) of the zone (106). Method for use of such a system.

Abstract: The invention concerns a treated water purification system (107) comprising a water flow loop (110), said loop (110) being closed onto a tank (10) of treated water to purify, and said loop (110) successively comprising, in the direction of flow of the water downstream of the tank (10), at least one pump means (102), at least one first filtration means (103), at least one second filtration means (104) and at least one point of use (U), the system (107) being characterized in that it further comprises at least one diversionary pipe (112) linking the first filtration means (103) to the tank (10), and a loop return pipe (114) linking the second filtration means (104) to the tank (10). Method for use of such a system.

Abstract: The invention consists in a disposable module (31) for purifying a fluid, in particular water, adapted to form part of a thud purification system and comprising fluid purification means (25, 28), a housing (35) in which the purification means are housed, and means for removably connecting the purification module (31) to the purification system to establish fluid communication between the purification system and the purification module (31), characterized in that the housing (35) contains from the outset a cleaning agent (36) disposed to come into contact with the fluid caused to circulate inside the housing (35) to clean at least a portion of the purification system, it also consists in the purification system and corresponding fabrication and cleaning methods,

Abstract: Described herein is a disposable module for purifying a fluid, in particular water, adapted to form part of a fluid purification system and method of cleaning at least a portion of a fluid purification system using such a disposable module, where the method includes the steps of: (a) providing a disposable module which includes a housing containing a cleaning agent from the outset: (b) connecting the module to a purification system which is downstream of the module and starting a system cleaning procedure, thereby to clean at least a portion of the purification system.

Abstract: A fluid purifying module including a monolithic container, a pretreatment filter, and a selectively permeable membrane treatment cartridge, respectively housed in an external cylindrical space and an internal cylindrical space of the container, communicating with each other via one or more passages in the vicinity of one axial end of the container. The external space communicates at the same end as the opposite axial end with a first connector orifice for feeding fluid to be purified to the pretreatment filter, and the internal space communicates separately, at the same end as the aforementioned axial end, with a second connector orifice for evacuating from the module a flow of permeate (purified fluid) and with a third connector orifice for evacuating from the module a flow of retentate (residual fluid).

Abstract: The invention concerns a water purification system (100) comprising a closed water recirculation loop (106) supplied at one point by a water inlet (101) with water to be purified, (and having) at least one outlet point of use of the purified water (102) and (further comprising) pumping means (103) and water purification means (150) on the loop respectively downstream of the inlet point and upstream of the at least one outlet point (102), in the water flow direction which system is characterized in that it includes two independent valves: a first valve (130) on the loop upstream of the pumping means (103), and a second valve (120) upstream of the at least one point of use outlet point (102). The invention also relates to a water purification method.

Abstract: A polishing cartridge in a water purification system for final purification of water for distribution to a point of use. The system includes a closed water recirculation loop supplied at one point by a water inlet with water to be purified, and having at least one outlet point of use of the purified water, a pump and a water purifier on the loop respectively downstream of the inlet point and upstream of the at least one outlet point, in the water flow direction, and two independent valves on the loop. The system further including a hydraulic connector including four ports that forms a distributor or manifold for the system. The cartridge contains a combination of an ultra filter having a cut-off below 13000 daltons for reducing the level of pyrogens and nucleases contained in the water, and C18 grafted media effective for reducing the level of contaminants in the water.

Abstract: The invention relates to a method of manufacturing a device for measuring conductivity of a liquid, in particular ultrapure water, of the kind comprising two conductivity measurement electrodes suitable for defining a cell constant enabling the measurement of the conductivity of the ultrapure liquid, characterized in that it consists of producing each of the electrodes by forming an electrode pattern from electrically conductive material on a substrate of insulating material. It also relates to the conductivity measuring device obtained by that method and to a device for measuring the Total Organic Carbon quantity implementing that conductivity measuring device.

Abstract: The invention relates to a method of manufacturing a device for measuring conductivity of a liquid, in particular ultrapure water, of the kind comprising two conductivity measurement electrodes suitable for defining a cell constant enabling the measurement of the conductivity of the ultrapure liquid, characterized in that it consists of producing each of the electrodes by forming an electrode pattern from electrically conductive material on a substrate of insulating material. It also relates to the conductivity measuring device obtained by that method and to a device for measuring the Total Organic Carbon quantity implementing that conductivity measuring device.