WO2016190779A1 - Système d'épuration de liquide - Google Patents

Système d'épuration de liquide Download PDF

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Publication number
WO2016190779A1
WO2016190779A1 PCT/RU2016/000267 RU2016000267W WO2016190779A1 WO 2016190779 A1 WO2016190779 A1 WO 2016190779A1 RU 2016000267 W RU2016000267 W RU 2016000267W WO 2016190779 A1 WO2016190779 A1 WO 2016190779A1
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WIPO (PCT)
Prior art keywords
liquid
fluid
initial
container
source
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PCT/RU2016/000267
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English (en)
Russian (ru)
Inventor
Вадим Николаевич КНИЗЕЛЬ
Александр Александрович ЧЕРНЫЙ
Сергей Викторович СМИРНОВ
Джозеф Львович ШМИДТ
Original Assignee
Закрытое Акционерное Общество "Аквафор Продакшн" (Зао "Аквафор Продакшн")
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Publication of WO2016190779A1 publication Critical patent/WO2016190779A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D57/00—Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

Definitions

  • the invention relates to autonomous systems with recirculation for the purification and / or desalination of liquids, mainly water for domestic and / or drinking water supply, and is intended for use in domestic conditions, in summer cottages and gardens.
  • Liquid purification systems are known and widespread. Most of the known liquid purification systems are mounted stationary to the liquid source, which limits the applicability of these systems in conditions where there are several sources of liquid or the source of liquid is not constant. Autonomous liquid purification systems that do not have a stationary connection to a liquid source are less dependent on the number of possible sources of the original liquid, which makes such systems more universal and expands the scope of their possible application.
  • the means of dynamic connection to the source of the source fluid in each of these systems is connected to the input to the source of the source fluid, and to the output - to the input of the fluid supply unit, the output of which is connected to the liquid purification unit, which has two outputs: output for clean fluid, connected to a tank for clean fluid, and an outlet for drainage fluid, connected to the drain line of the drainage fluid.
  • the source fluid through a means of dynamic connection to the source of the source fluid enters from the source of the source fluid into the fluid supply unit, from where the fluid is fed to the inlet of the fluid purification unit, in which the fluid purification process is carried out, while pure fluid through the outlet for clean fluid enters the tank for clean fluid, and drainage fluid through the outlet for drainage fluid enters the drain line of the drainage fluid and is removed from the system.
  • the fundamental difference between these liquid purification systems from classical liquid purification systems is that the means of dynamically connecting to the source of the source liquid included in each of these systems allows you to change the source of the source liquid and / or use more than one source of the source liquid. But at the same time, the designs of these systems do not provide the ability to control the degree of use of the source liquid, which is inefficient from the point of view of the flow of the source liquid to obtain pure liquid and is the main disadvantage of these systems.
  • the output of the liquid supply unit is connected to the input of the liquid purification unit, while the liquid supply unit has a functional connection with the clean liquid tank due to the fact that the float of the blocking means is located inside the clean liquid tank.
  • the fluid purification unit has two outputs: an outlet for clean fluid connected to a container for clean fluid, and an outlet for drainage fluid connected to a drain line of the drainage fluid.
  • the system works as follows: from the source of the source fluid through a means of dynamic connection to the source of the source fluid, the source fluid enters the inlet of the fluid supply unit, from where the source fluid is supplied to the fluid purification unit, where the fluid purification process is carried out, while the drainage fluid through the outlet for the drainage fluid enters the drain line of the drainage fluid and is discharged from the system, and clean fluid through the outlet for clean fluid enters from the fluid purification unit into a tank for clean life dots. As the container for clean liquid is filled, the float of the interlock system located in the specified container rises.
  • the lock means switch When the float rises to a certain level, the lock means switch is activated, as a result, the liquid supply unit is turned off, while the liquid supply to the liquid purification unit is stopped, and the liquid purification process stops.
  • the specified blocking system does not prevent air from entering the liquid purification unit and the operation of the liquid purification system in the liquid purification mode in the absence of supply of the initial liquid (“dry filtration”), this is due to the fact that when the liquid purification system operates in the indicated mode, the level of pure liquid in the container for pure liquid does not change, therefore, the blocking system does not work.
  • Air entering the liquid purification unit reduces the life of the liquid purification unit and can lead to breakdown of the liquid purification unit, therefore, the fact that the blocking system does not interfere with the “dry filtration” process is a drawback of this liquid purification system.
  • the design of this system does not provide for the ability to control the degree of use of the source fluid, which is inefficient from the point of view of the flow rate of the source fluid to obtain pure fluid and is also a disadvantage of this system.
  • the prior art fluid purification system includes means for dynamically connecting to the source of the initial liquid, a liquid supply unit including a pressure boosting means, a liquid supply line and a blocking means consisting of a low pressure switch and a high pressure switch, a liquid purification unit, a container for clean liquid, a drainage drain line liquids.
  • a liquid supply unit including a pressure boosting means, a liquid supply line and a blocking means consisting of a low pressure switch and a high pressure switch, a liquid purification unit, a container for clean liquid, a drainage drain line liquids.
  • the means of dynamic connection to the source of the source fluid is connected to the input of the fluid supply unit.
  • the output of the fluid supply line is the output of the fluid supply unit.
  • the output of the fluid supply unit is connected to the input of the fluid purification unit, which has two outputs: an outlet for clean liquid connected to a tank for clean fluid, and an outlet for drainage fluid that is connected to a drainage line.
  • This liquid purification system operates as follows. The source fluid from the source of the source fluid through a means of dynamic connection to the source of the source fluid enters the inlet of the fluid supply unit.
  • the low-pressure relay of the blocking system is activated, due to which the fluid supply unit is turned off and the liquid purification system stops working. If the pressure of the source fluid at the inlet to the fluid supply unit is higher than a predetermined level, then the fluid enters the inlet of the pressure increasing means, through the outlet of which the fluid enters the fluid supply line. Moreover, if the liquid pressure at the outlet of the pressure increase means is higher than a predetermined safe level, the high pressure switch of the interlock system is activated, due to which the liquid supply unit is switched off and the liquid purification system stops working.
  • the liquid pressure at the outlet of the pressure increasing means does not exceed a predetermined safe level, then the liquid flows through the liquid supply line of the liquid supply unit to the inlet of the liquid purification unit, where the liquid purification process is carried out.
  • pure fluid through the outlet for clean fluid of the fluid purification unit enters the tank for clean fluid, and the drainage fluid through the outlet for the drainage fluid enters the drain line of the drainage fluid and is discharged from the system.
  • the source fluid from the source of the source fluid must be supplied to the means of dynamic connection to the source of the source fluid and through the specified means to the fluid supply unit under a pressure higher than the set pressure value at which the low pressure switch of the interlock system is activated.
  • the pressure of the source fluid coming from the source of the source fluid must be such that after the passage of the source fluid through the means for increasing the pressure of the fluid supply unit, the fluid pressure is less than a predetermined safe pressure value at which the high pressure switch of the interlock system is activated.
  • the source fluid from the source of the source fluid must come under pressure, limited in the range determined by the design of the blocking system.
  • stringent requirements are established for the source of the source liquid, that is, the source of the source liquid cannot be any, which limits the practical application of this system, and therefore is a drawback.
  • liquid purification systems according to the patents US 5,039,402 [IPC C02F 9/00, publ. 08/13/1991] and CN 103553228 A [IPC C02F 9/02, publ. 02/05/2014].
  • Each of these liquid purification systems includes a container for the initial liquid, equipped with a liquid outlet means, which is located in the bottom of the source liquid reservoir, a liquid supply unit including a pressure boosting means, a liquid supply line, and a blocking means, made in the form of an indicator of the liquid level in the vessel for the initial liquid, a liquid purification unit, a container for pure liquid and a line drainage fluid drain.
  • the reservoir for the initial fluid is connected to the inlet by the fluid supply unit through the fluid outlet means and is operatively connected to the fluid supply unit through the fluid level indicator of the blocking system located in the reservoir for the initial fluid.
  • the output of the fluid supply unit is connected to the input of the fluid purification unit, which has two outputs: an outlet for clean fluid connected to a tank for clean fluid, and an outlet for drainage fluid connected to a drain line of the drainage fluid.
  • This liquid purification system includes a container for the initial liquid, equipped with liquid outlet and inlet means, a liquid supply unit, consisting of a pressure boosting means, a liquid supply line and a blocking means made in the form of a switch, a liquid purification unit, a container for clean liquid, a container for drainage fluid and a drainage fluid return line provided with a drainage fluid flow switch.
  • the capacity for the initial liquid is connected through the liquid outlet to the input of the liquid supply unit, the output of which is connected to the input of the liquid purification unit.
  • the fluid purification unit has an outlet for clean fluid connected to a container for clean fluid, and an outlet for drainage fluid, which is connected to the input of the drainage fluid return line.
  • the output of the drainage fluid return line is connected to the fluid inlet means of the reservoir for the initial fluid or to the reservoir for the drainage fluid.
  • the specified drainage fluid flow switch is a rotary handle connected by a pin to a rectangular corner provided with a longitudinal groove for attaching the specified pin. When this handle is rotated, the corner is also rotated, due to which the drainage fluid return line is switched from the reservoir for the initial fluid to the reservoir for the drainage fluid and vice versa.
  • This liquid purification system operates as follows. The capacity for the source fluid is filled with the source fluid. Through the liquid exit means, the initial liquid enters from the reservoir for the initial fluid into the fluid supply unit, from where it is supplied to the input of the fluid purification unit.
  • the prior art fluid purification system according to the patent US 5,928,503 [IPC B01D 17/12, B01D 61/12, publ. July 27, 1999], which we have chosen as the closest analogue.
  • the specified system includes a container for the original liquid, equipped with means of exit and entrance of the liquid, which are made in the form of tubes and installed in the cover of the container for the source fluid, the fluid supply unit, consisting of a means of increasing pressure, the locking means, made in the form of an indicator of the liquid level in the reservoir for the source fluid, and the fluid supply line, the liquid purification unit and the tank for clean liquid, the drainage return line liquids.
  • the capacity for the initial liquid is connected with the liquid supply unit through the liquid outlet means and through the blocking means.
  • the liquid From the reservoir for the initial liquid through the liquid outlet means, the liquid enters the liquid supply unit, from where the liquid is supplied to the input of the liquid purification unit. From the liquid purification unit through the outlet for clean liquid, pure liquid enters the tank for clean liquid, while the drainage liquid from the outlet for the drainage liquid of the liquid purification unit enters the drainage liquid return line and returns through the inlet means to the tank for the original liquid.
  • the liquid purification process continues until the liquid level in tanks for the source liquid above the level at which the liquid level indicator is located. As soon as the liquid level in the container for the initial liquid reaches the specified level, the means for blocking the liquid supply unit are activated, the liquid purification process is stopped.
  • the objective of the invention is to develop a stand-alone energy-efficient system for purifying a liquid, in particular drinking water, with the possibility of using the original liquid from any source.
  • the technical result achieved by using the invention is to increase the reliability of the liquid purification system by increasing the accuracy of the actuation of the locking means, while increasing the accuracy of regulating the degree of use of the source liquid.
  • the task and the required technical result when using the system are achieved by the fact that the liquid purification system, including a container for the initial liquid, equipped with liquid inlet and outlet means, a liquid supply unit, including a pressure boosting means, a liquid supply line and a blocking means, at least one liquid purification unit, and at least one container for clean liquid, and a drainage liquid return line, wherein the container for the initial liquid through the liquid outlet means is connected to the input ohm of the fluid supply unit, the output of which is connected to the input of the liquid purification unit, which has an outlet for clean fluid, connected to at least one tank for clean fluid, and an outlet for drainage fluid, connected to the input of the drainage fluid return line, the output of which connected to the tank for the source liquid, such that it is configured to automatically interrupt the liquid purification process when the liquid level in the
  • the means for exiting the initial fluid from the reservoir for the initial fluid is provided with at least one filter element.
  • the locking means is interconnected with the pressure increasing means in such a way that the locking means reacts to a change in the characteristics of the working medium in the pressure increasing means, where the locking means is made in the form of at least one device sensitive to air entering the pressure increasing means.
  • the device that is sensitive to the ingress of air into the means of increasing pressure is a means of measuring pressure, for example, a low pressure switch or a low and high pressure switch located on the liquid supply line after the means of increasing pressure, or a device that is sensitive to the ingress of air into the means pressure increase, made in the form of a current sensor connected to a means of increasing pressure.
  • the capacity for the source fluid can be equipped with a means of fluid sampling, which can be fixed at different heights to ensure optimal functioning of the system with different quality of the source fluid, while the fluid sampling device is made, for example, in the form of a flexible tube or in the form of a telescopic tube, and liquid selection means is provided with at least one filter element.
  • the capacity for the source liquid can be made with a complex bottom and with additional features of the deposition of large mechanical impurities from the liquid and the introduction of means to extend the life of the elements liquid purification unit, and / or dosing of solid or liquid substances that contribute to the filtering process.
  • the container for clean liquid additionally contains a mineralization unit, and / or a unit for conditioning the liquid, and / or a hollow fiber membrane element for additional purification of the liquid, and / or an electrochemical system for ensuring bacteriostaticity, and / or means for heating the pure liquid, and / or means for cooling the pure liquids.
  • a container for clean liquid can be placed inside the container for the source liquid.
  • the liquid purification system may include at least two containers for clean liquid and means for distributing clean liquid.
  • a container for clean liquid can be made in the form of a kettle and / or a reservoir for supplying liquid to a device for preparing hot and / or cold and / or extraction drinks.
  • the liquid purification unit can be made in the form of a combined liquid purification device consisting of a reverse osmosis membrane element, a sorption liquid purification element, a liquid conditioning element, and a tube made of a polymer material.
  • FIG. 1 is a diagram of a liquid purification system in which a liquid outlet means is located in a protrusion above the bottom of a container for a source liquid.
  • FIG. 3 - 6 illustrate examples of the execution of containers for the initial liquid with a different configuration of the bottom and place the location of the fluid outlet.
  • FIG. 7 shows a container for clean liquid located inside the container for the source liquid.
  • FIG. Figure 9 shows an example of the appearance of the complete fluid cleaning system.
  • the liquid purification system in general form includes a container for the initial liquid (1), equipped with means of inlet (10) and outlet (9) of the liquid, a liquid supply unit (2), including means for increasing pressure (3), a fluid supply line (4), blocking means (5), at least one fluid purification unit 6), at least one container for clean fluid (7), and a drainage fluid return line (8).
  • the capacity for the source fluid (1) through the fluid outlet means (9) is connected to the inlet of the fluid supply unit (2).
  • the output of the fluid supply unit (2) is connected to the input of the fluid purification unit (6).
  • the capacity for the source liquid (1) is an open a tank made, for example, but not limited to the listed options, from polymeric materials or stainless steel.
  • the container for the source fluid (1) is provided with a fluid inlet means (10), made, for example, but not limited to the listed options, in the form of a fitting or valve, and located, for example, but not limited to the listed options, in the bottom or in the side the wall of the tank (1).
  • a fluid inlet means (10) made, for example, but not limited to the listed options, in the form of a fitting or valve, and located, for example, but not limited to the listed options, in the bottom or in the side the wall of the tank (1).
  • the location of the fluid inlet means (10) in the bottom of the reservoir for the initial fluid (1) is preferable, since the mixing of the drainage and the initial fluid is carried out due to the jet of drainage fluid.
  • L0 is the level of the bottom of the tank for the initial liquid
  • L2 is the level of the location of the liquid outlet means (9)
  • L1 is the level of the upper edge of the initial liquid at the initial moment of the liquid purification process
  • the location of the levels L0 and L2 is constant and is determined by the design of the system
  • the level L1 depends on the amount of the initial liquid, which filled the system at the initial moment of the cleaning process, and can be any depending on the consumer's needs and the characteristics of the source of the initial liquid (Fig. 3-7).
  • the volume of the initial liquid located in the container for the initial liquid (1) from the level L0 to the level L1 is the total volume of the initial liquid (Vi).
  • the means of outlet (9) and inlet (10) of the liquid can each be provided with at least one filter element (not shown in the figures), which are made in the form, for example, but not limited to the listed options, bulk modules that remove stiffness, hollow fiber modules, filter cloth or mesh.
  • the capacity for the source liquid (1) can be additionally equipped with a means of fluid sampling (not shown in the figures).
  • the specified liquid sampling means is, for example, but not limited to the listed options, a flexible tube or telescopic tube.
  • the inlet of the specified means is located inside the container for the source liquid (1), while the height of the inlet can be adjusted.
  • the output of the indicated means is connected to the liquid outlet (9).
  • the container for the initial liquid (1) may additionally have a bottom of a complex configuration (Fig. 5-6), for example, but, not limited to the listed options, an inclined (Fig. 5-6) or stepped bottom (not shown in the figures).
  • Fig. 5-6 complex configuration
  • Fig. 5-6 inclined
  • Fig. 5-6 stepped bottom
  • large mechanical impurities can settle in the lower part of the bottom, and / or in the lower part of the bottom can be placed solids that contribute to the process of cleaning the liquid and / or extend the life of the liquid cleaning unit (6), for example, antiscalants or surfactants.
  • the fluid supply unit (2) includes a pressure boosting means (3), a fluid supply line (4) and a blocking means (5).
  • the means of increasing pressure (5) is connected to the input to the liquid outlet means (9) of the container for the initial liquid (1).
  • the output of the pressure boosting device (3) is connected directly to the input of the liquid supply line (4) or through the blocking means (5) depending on the execution of the blocking means (5), the output of the liquid supply line (4) is connected to the input of the liquid purification unit (6) .
  • the pressure boosting means (3) is a pump or pump system and a battery (not shown in the figures).
  • the locking means (5) is made in the form of at least one device that is sensitive to changes in the characteristics of the working medium in the means for increasing pressure (3).
  • This device is, for example, but not limited to the listed options, a pressure measuring device connected to the output of the pressure boosting device (3) to the liquid supply line (4) (for example, a low pressure switch or a low and high pressure switch) current strength connected to the pressure boosting means (3).
  • a pressure measuring device connected to the output of the pressure boosting device (3) to the liquid supply line (4) (for example, a low pressure switch or a low and high pressure switch) current strength connected to the pressure boosting means (3).
  • the liquid purification unit (6) is made, for example, but not limited to only those listed in the options, in the form of at least one means of fine purification of a liquid, for example a reverse osmosis or hollow fiber membrane, or in the form of at least one combined liquid purification device (Fig. 8).
  • the combined liquid purification device (Fig. 8) consists of a reverse osmosis membrane element (11), a liquid sorption cleaning element (12), a liquid conditioning element (13), and a tube of polymer material (14) located inside the liquid sorption cleaning element.
  • the initial liquid entering the liquid purification unit (6) enters the element of sorption liquid purification (12), from where the previously purified liquid enters the reverse osmosis membrane element (11), where the liquid is separated into pure liquid and drainage liquid,
  • the drainage fluid enters the outlet for the drainage fluid of the fluid purification unit (6), and the clean fluid through a tube of polymer material (14) enters the fluid conditioning element (13), after which the clean fluid enters to the outlet for clean liquid of the liquid purification unit (6).
  • the liquid purification unit (6) may include at least one pre-filter (not shown in the figures), for example, a polypropylene pre-filter element or a module with a sorption mixture based on activated carbon and / or ion-exchange resins and fibers.
  • the liquid purification unit (6) may include a post-filter (not shown in the figures), made, for example, in the form of an activated carbon module as an sorbent and / or mineralizing material.
  • the tank for clean liquid (7) is a pressureless tank, made, for example, but not limited to the listed options, from polymeric materials or stainless steel.
  • a container for clean liquid (7) is connected to the outlet for pure liquid of the liquid purification unit (6) directly or through a means for distributing pure liquid (not shown in the figures).
  • a means of distributing a clean liquid (not shown in the figures) is, for example, but not limited to the listed options, a tee or a system of tees, or a flow tank.
  • the clean liquid distribution means is connected to the inlet to the clean liquid outlet of the liquid purification unit (6) and has at least two outlets independently connected to at least two clean liquid containers.
  • the means for distributing pure liquid can be made in the form of a tube connected to the outlet for pure liquid of the liquid purification unit (6), and a rotary mechanism for moving the outlet of the specified tube at least between two containers for pure liquid.
  • the container for clean liquid (7) can be located inside the tank for the source liquid (1) (Fig. 7), while the tank for clean liquid (7) and / or the tank for the source liquid (1) equipped with fasteners located on the upper edges of the side walls of these containers.
  • the container for pure liquid (7) may additionally contain a mineralization unit, and / or a conditioning unit for liquid, and / or an electrochemical system for ensuring bacteriostaticity, and / or means for heating pure liquid, and / or means for cooling pure liquid (not shown in the figures).
  • a container for clean liquid (7) can be used separately from the liquid purification system as a body of a jug type water purifier.
  • the container for clean liquid (7) can be made in the form of a kettle and / or a reservoir for supplying liquid to the device for preparing hot and / or cold and / or extraction drinks.
  • the liquid purification system may include a housing and / or decorative protective panels made of polymeric materials or stainless steel.
  • FIG. 9 An example of the appearance of a liquid purification system is shown in FIG. 9.
  • the container for the source liquid (1) is filled with the source liquid to the level L1, and the amount of the source liquid is Vb.
  • the source liquid From the container for the source liquid (1) through the liquid outlet means (9), the source liquid enters the liquid supply unit (2), from where it enters inlet of the liquid purification unit (6).
  • Two liquid streams exit from the liquid purification unit (6): a stream of pure liquid, which enters at least one container for clean liquid (7); the flow of drainage fluid, which through the return line of the drainage fluid (8) through the fluid inlet means (10) enters the reservoir for the initial fluid (1), thus, the process of cleaning the liquid with recirculation is implemented.
  • the pressure boosting means (3) stops the process of supplying liquid from the reservoir for the initial liquid (1) through the liquid supply unit (2) to the liquid purification unit (6), as a result, the liquid purification process stops. At the same time, air does not have time to get into the liquid purification unit (6), thus increasing the reliability of the system and extending the service life of the liquid purification unit (6).
  • the blocking means (5) captures the moment air enters the liquid outlet (9).
  • the design of the interlock system is resistant to mechanical stresses, even with an inclination of the fluid purification system, “dry filtration” is not possible, because if the inclination is slight and does not lead to air entering the fluid outlet (9), the system will continue to work normal mode. If the inclination of the system leads to air entering the fluid outlet (9), then the locking system (5) will work. At the same time, since the blocking system (5) reacts to a change in the characteristics of the medium in the pressure increasing means (4), and not to the initial pressure of the initial liquid, the source of the initial liquid can be any, which extends the scope of the liquid purification system.

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  • Chemical & Material Sciences (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)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne des systèmes autonomes avec recyclage à capacité d'épuration et/ou de dessalement de liquide. Le récipient pour le liquide initial (1) est lié à une unité d'entrée de liquide (2) dont la sortie est connectée à l'entrée de l'unité d'épuration de liquide (6) qui possède une sortie pour le liquide propre connectée sur un récipient destiné au liquide propre (7) et la sortie pour le liquide de drainage connectée à l'entrée de la ligne de retour du liquide de drainage (8) dont la sortie est raccordée au récipient pour le liquide de départ (1). Le système est doté d'une capacité de coupure automatique du processus d'épuration du liquide lorsque le niveau de liquide dans une cavité pour un liquide initial pendant le fonctionnement du système atteint un niveau de moyen de sortie du liquide initial. L'unité d'amenée de liquide (2) est réalisée de manière à effectuer une déconnexion automatique du dispositif de hausse de pression (3) pour assurer l'arrivée d'air dans l'unité d'épuration de liquide en réponse au signal arrivant du moyen de blocage (5) et informant sur le moment d'arrivée d'air via le moyen de sortie d'air du récipient pour liquide initial dans le moyen de hausse de pression. L'invention permet d'améliorer la fiabilité d'un système d'épuration de liquides.
PCT/RU2016/000267 2015-05-26 2016-05-04 Système d'épuration de liquide WO2016190779A1 (fr)

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