WO2013042432A1 - Dispositif de traitement de l'eau - Google Patents

Dispositif de traitement de l'eau Download PDF

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Publication number
WO2013042432A1
WO2013042432A1 PCT/JP2012/067456 JP2012067456W WO2013042432A1 WO 2013042432 A1 WO2013042432 A1 WO 2013042432A1 JP 2012067456 W JP2012067456 W JP 2012067456W WO 2013042432 A1 WO2013042432 A1 WO 2013042432A1
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WO
WIPO (PCT)
Prior art keywords
water
water supply
unit
purified water
purified
Prior art date
Application number
PCT/JP2012/067456
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English (en)
Japanese (ja)
Inventor
俊輔 森
千尋 井
尼木　実知子
Original Assignee
パナソニック株式会社
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Filing date
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Publication of WO2013042432A1 publication Critical patent/WO2013042432A1/fr

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    • 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
    • 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
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • 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
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone

Definitions

  • the present invention relates to a water treatment apparatus for purifying raw water such as tap water to generate purified water.
  • an object of the present invention is to obtain a water treatment apparatus capable of emptying and sterilizing the inside of a route without drainage.
  • a raw water supply unit a purification unit for purifying raw water supplied from the raw water supply unit and passing the purified water to a purified water supply path;
  • a reservoir capable of storing water in a channel
  • a sterilizing fluid generator capable of supplying a bactericidal fluid containing a bactericidal component and supplying the bactericidal fluid into the purified water supply channel, and the purified water supply channel at the end of sterilization
  • the sterilizing component decomposing unit for recovering the sterilizing fluid and decomposing the sterilizing component, and transferring the water in the clean water supply channel to the storage unit when the clean water supply channel is sterilized.
  • a second feature of the present invention is that the storage unit doubles as the raw water supply unit.
  • a third feature of the present invention is that a water backflow unit is provided downstream of the purification unit to backflow water in the purified water supply path to the purification unit and transfer the water to the storage unit.
  • a fourth feature of the present invention is that the reservoir is disposed below the purified water supply path.
  • the water in the clean water supply path is transferred to the storage section to empty the clean water supply path, and the empty clean water supply path is Supply the sterilizing fluid generated by the sterilizing fluid generator.
  • the sterilizing fluid in the purified water supply channel is decomposed in the sterilizing component decomposition unit.
  • First Embodiment 1 to 3 show a water treatment apparatus 1 according to a first embodiment of the present invention.
  • the water treatment apparatus 1 of the present embodiment purifies raw water such as tap water and well water to generate clean water suitable for drinking, and enables sterilization in the clean water supply path 3.
  • the water treatment apparatus 1 includes the raw water supply unit 2 and the purification unit 4 that purifies the raw water supplied from the raw water supply unit 2 and passes the purified water to the clean water supply path 3. And a reservoir 5 capable of storing water at least in the purified water supply path 3.
  • the above-described raw water supply unit 2, the purified water supply path 3, the purification unit 4, the storage unit 5, and the like are covered with a cover or the like to form the main unit 11.
  • the raw water supply unit 2 is connected to a raw water source such as a water pipe (not shown) and takes the raw water into the main body 11, and is provided in the raw water feed path 21 and the main body 11 and disposed at the terminal of the raw water feed path 21 And a raw water feed valve 22.
  • the raw water feed valve 22 is a three-way valve in the present embodiment, the raw water feed passage 21 is connected to one valve port, the raw water introduction passage 41 of the purification unit 4 is connected to the other valve port,
  • the circulation water supply passage 51 communicating with the bottom portion of the storage unit 5 is connected to the valve port of the second embodiment.
  • the circulation water supply passage 51 is provided with a circulation pump P1 that pumps the water in the storage unit 5 to the purification unit 4 via the raw water supply valve 22.
  • the purification unit 4 has a function of purifying raw water to generate purified water, and may be an MF membrane (microfiltration membrane), UF membrane (ultrafiltration membrane), RO membrane, NF membrane (reverse osmosis membrane), etc. It is configured using a separation membrane. In addition to these separation membranes, other means capable of purifying water can also be used. For example, adsorption materials such as activated carbon, hollow fiber membranes, sand filtration, ion exchange resins, etc. can be used.
  • the purified water supply channel 3 includes a purified water outlet channel 42 communicating with the outlet of the purification unit 4, and a cold water channel 31 and a thermal water channel 32 provided bifurcatedly from the purified water outlet channel 42.
  • a cold water discharge valve 33 is provided at the downstream end of the cold water passage 31, and a cold water discharge port 34 extends from the cold water discharge valve 33 to the outside of the main body 11. Further, a hot water spout valve 35 is provided at the downstream end of the thermal water passage 32, and a hot water spout 36 extends from the hot water spout valve 35 to the outside of the main body 11.
  • a hot water storage unit 6 incorporating the heating unit 61 is provided in the middle of the heat flow channel 32.
  • the primary side (upstream side) of the thermal water passage 32 is connected to the upper portion of the hot water storage portion 6, and the secondary side (downstream side) is connected to the lower portion of the hot water storage portion 6.
  • the water in the hot water storage unit 6 is heated by the heating unit 61 to a predetermined temperature.
  • a passage switching valve 37 is provided in a path between the hot water storage portion 6 and the hot water discharge valve 35.
  • the flow path switching valve 37 is constituted by a three-way valve, one hot water storage portion 6 side of the hot water passage 32 is connected to one valve port, the hot water discharge valve 35 side of the hot water flow passage 32 is another valve port
  • the circulation passage 7 of the sterilizing fluid is connected to the remaining valve ports.
  • a hot water supply pump P2 for pumping hot water in the direction of the hot water discharge port 36 is provided in the middle of the heat passage 32 on the secondary side from the hot water storage portion 6 to the flow path switching valve 37.
  • the direction connected to the flow path switching valve 37 is on the downstream side, and the opposite end, which is the upstream side, is on the upstream side of the hot water storage portion 6 of the heat channel 32. It is in communication with The circulation passage 7 is provided with a temporary water supply pump P3 which operates at the time of sterilization and transfers the sterilizing fluid to the downstream side. Further, a branch path 71 branched on the downstream side of the temporary water supply pump P3 is connected to the upper portion of the storage unit 5.
  • the drain pipe 52 is connected to the lower part of the storage part 5
  • the drain pipe 62 is connected to the lower part of the hot water storage part 6, too.
  • the drain pipe 52 is provided with a cold water drain valve 53
  • the drain pipe 62 is provided with a hot water drain valve 63. Therefore, by opening the drain valves 53 and 63 at the time of maintenance or the like, the storage unit 5 and the hot water storage unit 6 can be emptied.
  • a communication passage 38 is provided which communicates the upstream side of the cold water discharge valve 33 of the cold water passage 31 and the hot water passage 32 between the hot water discharge valve 35 and the flow passage switching valve 37. Then, an ozone generation unit 8 as a sterilizing fluid generation unit and an ozonolysis unit 81 as a sterilizing component decomposition unit are provided in series near the cold water discharge valve 33 of the communication passage 38 and near the hot water discharge valve 35.
  • the ozone generator 8 generates ozone gas as a sterilizing fluid, and can supply the ozone gas into the purified water supply path 3.
  • the ozonolysis unit 81 recovers the ozone gas in the purified water supply path 3 at the end of the sterilization in the purified water supply path 3 to decompose ozone which is a sterilizing component.
  • the water treatment apparatus 1 is provided with an operation panel (not shown) in the main body 11, and an operation signal of the operation panel is sent to the control unit 9 to control various electric devices of the water treatment apparatus 1. ing.
  • the cold water drain valve 53 and the hot water drain valve 63 are manually opened and closed as required.
  • a two-dot chain line shown in FIG. 1 is a wire for electrically connecting the control unit 9 and various electric devices.
  • the heating part 61 of the hot water storage part 6 may be a resistance heating type heater generally used, it can be constituted also using a Peltier device. That is, as is generally known, the Peltier element has a heat dissipation side and a heat absorption side, and in this case, the heat dissipation side of the Peltier element is used to heat the water in the hot water storage portion 6.
  • the temperature of the hot water to be warmed is preferably set in the range of about 60 ° C. to about 95 ° C., but a desired constant temperature, for example, 60 ° C., 80 ° C., 95 It may be set as a specific temperature such as ° C or more.
  • the control unit 9 switches the flow path switching valve 37 and opens the hot water discharge valve 35 at the same time, and operates the hot water supply pump P2. Do. As a result, the hot water in the hot water storage section 6 is discharged from the hot water discharge port 36.
  • the hot water storage unit 6 is provided with a heat retention function, and the heating unit 61 is operated even when the water treatment apparatus 1 is stopped, so that the water temperature in the hot water storage unit 6 becomes a predetermined temperature (for example, 60 °). You can keep it warm at C).
  • the heat absorption side of the Peltier element can be used to form a cold water storage unit (not shown).
  • the cold water reservoir is provided as described above, the cold water can be used besides the hot water.
  • the water treatment apparatus 1 has a water flow mode capable of discharging cold water or hot water and a sterilization mode for sterilizing the purified water supply path 3, and these modes can be selected by the operation panel.
  • the raw water supply valve 22 When the user selects the water flow mode on the operation panel, the raw water supply valve 22 is switched to connect the raw water supply passage 21 and the raw water introduction passage 41 with each other. Then, as shown by a dotted line in FIG. 2, the raw water supplied from the raw water supply passage 21 is purified by the purification unit 4 and becomes purified water, and the purified water flows into the cold water passage 31 and the hot water passage 32.
  • the purified water that has flowed into the hot water passage 32 is stored in the hot water storage unit 6, and it is preferable that the stored water be preheated by the heating unit 61.
  • the cold water discharge valve 33 When the cold water is selected on the operation panel, the cold water discharge valve 33 is opened, and the purified water generated by the purification unit 4 is discharged from the cold water discharge port 34 via the cold water passage 31.
  • the white triangle shows the communication state
  • the black triangle shows the interruption
  • the hot water discharge valve 35 is switched at the same time as the flow path switching valve 37 is switched. Opens.
  • the hot water in the hot water storage unit 6 passes through the hot water channel 32 on the secondary side of the hot water storage unit 6 by the operation of the hot water supply pump P2. The water is discharged from the hot water discharge port 36.
  • both the cold water discharge valve 33 and the hot water discharge valve 35 are closed, and the raw water feed valve 22 is switched so as to connect the raw water introduction passage 41 and the circulating water supply passage 51.
  • the temporary water supply pump P3 When the user selects the sterilization mode on the operation panel, the temporary water supply pump P3 is activated to circulate the water in the purified water supply path 3, specifically the water in the cold water path 31 and the hot water path 32 shown by broken lines in FIG. Pass the passage 7 and transfer it into the reservoir 5. Therefore, the purified water supply path 3 to be disinfected in the present embodiment is a part which transfers water to the storage part 5 and becomes empty, and in the present embodiment, it becomes a part shown by a broken line in FIG. Therefore, the purified water supply path 3 described below indicates a portion to be sterilized after transferring water, and is a portion shown by a broken line in FIG. 3 of the cold water passage 31 and the heat water passage 32. At this time, the circulation path 7 also becomes a portion to be sterilized at the same time.
  • the water in the purified water supply path 3 is transferred to the storage unit 5, so that in the sterilization mode, the water in the purified water supply path 3 is temporarily evacuated in the storage portion 5. That is, by evacuating the water in the storage unit 5 in this manner, the inside of the purified water supply path 3 to be sterilized can be emptied.
  • the hot water in the hot water storage unit 6 may be evacuated to the storage unit 5, the hot water storage unit also affects the water temperature when the water in the storage unit 5 is reused as described later. It is preferable to leave the hot water in 6 as it is. Further, since the hot water storage portion 6 and the heat channel 32 on the secondary side of the hot water storage portion 6 are heated and sterilized by the hot water, it is not necessary to necessarily perform the ozone sterilization of the present embodiment.
  • a water level sensor is provided in the storage unit 5 or a timer is set in the control unit 9 It is built-in etc., and it is made to detect an empty state with these water level sensors or timers.
  • the ozone generation unit 8 is operated, and as shown in FIG. Switch to communicate. Then, the ozone gas generated by the ozone generating unit 8 flows through the cold water passage 31 by the temporary water supply pump P3 and flows into the hot water passage 32 as shown by the broken line and the arrow in FIG. After passing through the channel switching valve 37, it reaches the ozonolysis unit 81. As a result, the path through which the ozone gas passes is sterilized. At this time, although not shown, a structure in which ozone gas does not enter the storage unit 5 from the branch path 71 is provided. Then, the ozone gas finally reaching the ozone decomposition unit 81 is decomposed by the ozone decomposition unit 81 and detoxified.
  • the water evacuated to the storage unit 5 is used again as the raw water. That is, the circulation pump P1 is operated by the termination of the sterilization mode, and the water in the storage unit 5 is supplied from the circulation water supply passage 51 to the purification unit 4 through the raw water supply valve 22 and the raw water introduction passage 41. Therefore, the purified water purified by the purification unit 4 flows into the cold water passage 31 and the heat water passage 32, and the above-described water flow mode can be executed.
  • the sterilization mode can be selected by the user manually operating the operation panel, but may be controlled to automatically enter the sterilization mode.
  • the sterilization mode can be executed in a predetermined time zone by a timer or the like. In this case, it is preferable to control to be in the sterilization mode automatically at night when the frequency of use is low.
  • generation means of the ozone gas by a discharge system, an ultraviolet system, etc. are used.
  • the fluid is not limited to ozone gas, and may be a fluid having a sterilizing component such as ethylene oxide or formaldehyde.
  • the ozone decomposition unit 81 may have any structure as long as it can decompose ozone, such as activated carbon, ultraviolet light, or a heater. Moreover, when using an ultraviolet-ray and a heater as an ozone decomposition part, it is preferable to control the ozone decomposition part 81 automatically by the control part 9. FIG. That is, when the sterilization state is maintained, the ozonolysis unit 81 is stopped, and when the sterilization is completed, the ozonolysis unit 81 is operated to decompose ozone.
  • an ozone concentration detector may be separately provided to confirm that the concentration has been reduced to a safe concentration.
  • an ultraviolet ray absorption method can be used as an ozone concentration detection means, and the ozone concentration can be detected by measuring the absorbance by irradiating ultraviolet rays around a wavelength of 254 nm.
  • a semiconductor sensor as another ozone concentration detection means. That is, a semiconductor such as In2O3 or SnO3 is characterized in that the electric conductivity changes due to adsorption of ozone gas, and the ozone concentration is detected by measuring the change in electric resistance of the thin film obtained by oxidizing the thin film surface of the semiconductor with ozone. it can.
  • ozone is characterized by changing the blue color of indigo carmine used as a colorant to white, and this principle may be used to detect the ozone concentration.
  • this principle may be used to detect the ozone concentration.
  • any means other than these can be used as long as the ozone concentration can be detected.
  • the raw water supplied from the raw water supply unit 2 is purified by the purification unit 4, and the purified water is Water is supplied to the cold water passage 31 and the heat water passage 32. Then, cold water can be discharged from the cold water discharge port 34 by opening the cold water discharge valve 33, while hot water can be discharged from the hot water discharge port 36 by opening the hot water discharge valve 35.
  • the water in the purified water supply path 3 was once evacuated to the reservoir 5 to empty the purified water supply path 3, and the sterilizing fluid generator 8 generated the empty purified water supply path 3.
  • Supply ozone gas and sterilize When sterilization is completed, the bactericidal component of the bactericidal fluid in the purified water supply path 3 can be decomposed by the bactericidal component decomposing unit 81, and then the water evacuated in the storage unit 5 can be used again as raw water.
  • the water in the purified water supply path 3 can be evacuated to the storage unit 5 at the time of sterilization, the water removing operation becomes unnecessary, and the workability at the time of sterilization can be improved.
  • the evacuated water can be reused as raw water after sterilization is completed, economic efficiency can be enhanced.
  • FIG. 4 is a view showing a second embodiment of the present invention, and the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted to avoid duplication.
  • the water treatment apparatus 1A of the present embodiment is mainly different from the first embodiment in that the storage unit 5A also serves as a raw water supply unit.
  • the water treatment apparatus 1A of the present embodiment eliminates the raw water feed channel 21 and the raw water feed valve 22 shown in the first embodiment, and purifies the raw water directly from the storage section 5A through the circulation feed channel 51. It is supposed to be taken into The other configuration is the same as that of the first embodiment.
  • the storage unit 5A of the present embodiment has a volume equal to or greater than the combined volume of the raw water and the amount of water evacuated from the purified water supply path 3 in advance.
  • the storage part 5A of this embodiment in order to distinguish storage part 5A of this embodiment from storage part 5 of a 1st embodiment, it explains below as raw water storage part 5A.
  • the circulation water supply passage 51 is connected to the lower portion as in the first embodiment, but in this embodiment, the circulation water supply passage 51 is directly connected to the purification unit 4 and the circulation water supply passage A circulation pump P1 is provided in the middle of 51.
  • the raw water storage part 5A which served as the raw water supply part is provided with a door (not shown) for injecting the raw water.
  • the door may be opened and the raw water may be directly injected into the raw water reservoir 5A, or a pipe (not shown) for injecting the raw water may be provided, and the pipe may be inserted from the opened door to feed the raw water. It may be injected.
  • the raw water storage unit 5A does not necessarily have to be installed in the main body 11, and it is preferable that the door is closed except when the raw water is injected to block the inside of the raw water storage unit 5A from the outside air.
  • the circulation pump P1 is operated and stored in the raw water storage section 5A.
  • Raw water is supplied to the purification unit 4 to be purified.
  • the purified water is supplied to the cold water passage 31 and the hot water passage 32 as in the first embodiment. Thereafter, the operation until the cold water outlet 34 and the hot water outlet 36 are discharged is the same as that of the first embodiment, and the description thereof is omitted here.
  • the temporary water supply pump P3 operates in the same manner as in the first embodiment, and the water in the purified water supply channel 3 is stored from the circulation channel 7 via the branch channel 71 It is evacuated to the part 5A.
  • the ozone gas generated by the ozone generation unit 8 is supplied to the empty clean water supply path 3 to sterilize it, and when sterilization is completed, the ozone decomposition unit 81 decomposes the ozone, and this sterilization process It is similar to the first embodiment.
  • the operation of the circulation pump P1 introduces the water evacuated to the raw water storage unit 5A, that is, the water mixed with the original raw water into the purification unit 4 via the circulation water supply passage 51.
  • the water of the raw water reservoir 5A can be used again as raw water.
  • the storage portion 5 of the first embodiment can be obtained.
  • the raw water storage portion 5A also serves as a raw water supply portion. As a result, the raw water feed channel 21 and the raw water feed valve 22 (see FIG. 1) are unnecessary, and the water treatment apparatus 1A can be made compact.
  • the water treatment apparatus 1A can be made movable in combination with the downsizing, and the installation location of the apparatus can be easily changed if the power supply can be secured. become able to.
  • FIG. 5 is a view showing a third embodiment of the present invention, and the same components as those of the second embodiment are denoted by the same reference numerals, and the description thereof will be omitted.
  • the water treatment apparatus 1B of this embodiment is mainly different from the second embodiment in that a backflow pump P4 as a water backflow unit is provided on the downstream side of the purification unit 4 and the water in the purified water supply path 3 is purified. It is because it was made to evacuate to the raw water storage part 5A as a storage part, making it backflow to 4.
  • the circulation water supply passage 51 is connected to the upper part of the raw water storage unit 5A, when the water in the purified water supply path 3 is evacuated, it flows from the upper part of the raw water storage unit 5A. Further, the circulation path 7 connected to the flow path switching valve 37 is connected to the purified water outflow path 42 instead of the heat flow path 32, and the temporary water supply pump P3 (see FIG. 4) is eliminated.
  • the other configuration is the same as that of the second embodiment.
  • the circulation pump P1 is operated and stored in the raw water storage section 5A.
  • Raw water is supplied to the purification unit 4 to be purified.
  • the purified water that has been purified is supplied to the cold water passage 31 and the hot water passage 32, and then the operation until it is discharged from the cold water outlet 34 and the hot water outlet 36 corresponds to the second embodiment. It is similar.
  • the backflow pump P4 operates, and the water in the clean water supply passage 3 flows back from the cold water passage 31 to the purification unit 4 through the clean water outflow passage 42. Then, the water that has flowed back to the purification unit 4 is evacuated to the raw water storage unit 5A through the circulation water supply passage 51. At this time, the circulation pump P1 is stopped, and the backflowed water passes through the circulation pump P1.
  • ozone gas generated by the ozone generation unit 8 is supplied to the empty clean water supply passage 3 for sterilization, and when sterilization is completed, ozone is decomposed by the ozone decomposition unit 81, and this sterilization is performed.
  • the process is the same as in the second embodiment.
  • the water evacuated to 5 A of raw water storage parts similarly to 2nd Embodiment can be used again as raw water.
  • the backflow pump P4 is provided to supply clean water.
  • the water in the path 3 is transferred back to the purification unit 4 and transferred to the raw water storage unit 5A.
  • a flow path (branch path 71 in FIG. 4) for evacuating the water in the purified water supply path 3 to the raw water storage portion 5A, thereby suppressing the flow path from being complicated. Can.
  • FIG. 6 is a view showing a fourth embodiment of the present invention, and the same components as those of the third embodiment are indicated by the same reference numerals and the description thereof will be omitted.
  • the water treatment apparatus 1C of the present embodiment is mainly different from the third embodiment in that the raw water reservoir 5A as a reservoir is disposed below the purified water supply path 3.
  • the water treatment apparatus 1C of the present embodiment arranges the raw water storage portion 5A in the direction of gravity below the cold water passage 31 which is empty at least when sterilizing the clean water supply passage 3 and places the water in the cold water passage 31 by gravity. It is made to evacuate to the raw water storage part 5A. As a result, the backflow pump P4 of the third embodiment becomes unnecessary, and the backflow pump P4 can be eliminated.
  • the water to be evacuated flows back through the purification unit 4 and flows into the circulation water supply channel 51.
  • the circulation water supply channel 51 is cleaned with the purification unit 4 so as to easily flow from the purification unit 4 into the raw water storage unit 5A.
  • the water evacuated to 5 A of raw water storage parts like the 3rd embodiment can be used again as raw water.
  • the pipe of the circulation pump P1 be disposed in a state of extending to the lower part of the raw water reservoir 5A.
  • the upper and lower relationship between the raw water storage portion 5A and the purified water supply path 3 is specified, and basically the water treatment apparatus 1B of the third embodiment except for eliminating the backflow pump P4. It has the same configuration as
  • the raw water storage portion 5A is a purified water supply portion It is arranged below 3. Therefore, when the circulation pump P1 is stopped, the water in the purified water supply passage 3 is automatically evacuated to the raw water storage portion 5A by gravity. As a result, since the backflow pump P4 is not required, the structure of the water treatment apparatus 1C is simplified, and further downsizing and cost reduction can be achieved.
  • the feature portion is applied to the third embodiment.
  • the present invention can be applied to the first and second embodiments.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Water Treatment By Sorption (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

La présente invention concerne un dispositif de traitement de l'eau qui utilise une unité de purification (4) pour purifier de l'eau brute fournie à partir d'une unité d'alimentation en eau brute (2) et transmet le résultat à une voie d'alimentation en eau purifiée. Le dispositif selon la présente invention comprend au moins : une unité de réservoir (5) qui peut retenir au moins l'eau contenue dans la voie d'alimentation en eau purifiée (3); une unité de génération d'un fluide stérilisateur (8) qui peut générer un fluide stérilisateur contenant un composant stérilisateur et introduire le résultat dans la voie d'alimentation en eau purifiée (3); et une unité de décomposition du composant stérilisateur (81) qui, à la fin de la stérilisation, récupère le fluide stérilisateur dans la voie d'alimentation en eau purifiée (3) et décompose le composant stérilisateur. Par ailleurs, pendant la stérilisation de la voie d'alimentation en eau purifiée (3), l'eau contenue dans la voie d'alimentation en eau purifiée (3) est transférée dans l'unité de réservoir (5). Cette eau transférée est utilisée en tant qu'eau brute après la stérilisation.
PCT/JP2012/067456 2011-09-21 2012-07-09 Dispositif de traitement de l'eau WO2013042432A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011205449A JP2013066822A (ja) 2011-09-21 2011-09-21 水処理装置
JP2011-205449 2011-09-21

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WO2013042432A1 true WO2013042432A1 (fr) 2013-03-28

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09155361A (ja) * 1995-12-04 1997-06-17 Japan Organo Co Ltd 超純水供給装置とその配管の殺菌方法
JPH10337324A (ja) * 1997-06-09 1998-12-22 Kurita Water Ind Ltd 純水製造設備の殺菌方法
JP2006314918A (ja) * 2005-05-12 2006-11-24 Kurita Water Ind Ltd 膜濾過設備及びその運転管理方法
JP2007319801A (ja) * 2006-06-01 2007-12-13 Ohbayashi Corp 循環浄水装置の洗浄方法及び循環浄水装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09155361A (ja) * 1995-12-04 1997-06-17 Japan Organo Co Ltd 超純水供給装置とその配管の殺菌方法
JPH10337324A (ja) * 1997-06-09 1998-12-22 Kurita Water Ind Ltd 純水製造設備の殺菌方法
JP2006314918A (ja) * 2005-05-12 2006-11-24 Kurita Water Ind Ltd 膜濾過設備及びその運転管理方法
JP2007319801A (ja) * 2006-06-01 2007-12-13 Ohbayashi Corp 循環浄水装置の洗浄方法及び循環浄水装置

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