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WO2011052505A1 - Water processing device - Google Patents

Water processing device Download PDF

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Publication number
WO2011052505A1
WO2011052505A1 PCT/JP2010/068709 JP2010068709W WO2011052505A1 WO 2011052505 A1 WO2011052505 A1 WO 2011052505A1 JP 2010068709 W JP2010068709 W JP 2010068709W WO 2011052505 A1 WO2011052505 A1 WO 2011052505A1
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WO
WIPO (PCT)
Prior art keywords
water
reverse osmosis
osmosis membrane
exchange resin
unit
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
Application number
PCT/JP2010/068709
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French (fr)
Japanese (ja)
Inventor
和也 小早川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
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Panasonic Electric Works Co Ltd
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Filing date
Publication date
Application filed by Panasonic Electric Works Co Ltd filed Critical Panasonic Electric Works Co Ltd
Priority to CN2010800418243A priority Critical patent/CN102510837B/en
Publication of WO2011052505A1 publication Critical patent/WO2011052505A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/06—Specific process operations in the permeate stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/08—Specific process operations in the concentrate stream
    • 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
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124—Water desalination
    • Y02A20/131—Reverse-osmosis

Definitions

  • the present invention relates to a water treatment device.
  • tap water is passed through a precipitation filter, passed through a first adsorption filter and a reverse osmosis membrane filter, passed through a tank, and then passed through a second adsorption filter and a ceramics filter to perform water treatment. ing.
  • an object of this invention is to obtain the water treatment apparatus which can utilize the concentrated water isolate
  • the ion exchange resin of the purification unit is reversed. It is characterized in that regeneration is performed using the concentrated water separated by the osmotic membrane device.
  • the ion exchange resin is regenerated using the concentrated water separated by the reverse osmosis membrane device, the concentrated water that is usually discarded can be used effectively.
  • FIG. 1 is a schematic view of a water treatment apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a schematic view of a water treatment apparatus according to a second embodiment of the present invention.
  • a water treatment apparatus 1 includes a reverse osmosis membrane device 2 for separating water containing salt such as seawater into purified water (permeate) and concentrated water containing impurities (salt such as NaCl)
  • the purification unit 4 is provided with an ion exchange resin layer (ion capture unit) 3 for capturing ions in the raw water by bringing the raw water into contact with the ion exchange resin 3a.
  • the reverse osmosis membrane device 2 a known one provided with a reverse osmosis membrane inside is used.
  • this reverse osmosis membrane generally known RO membrane (Reverse Osmosis Menbrane), NF membrane (nanofiltration membrane) called a nanofilter, etc. can be used.
  • the reverse osmosis membrane is not limited to the RO membrane or the NF membrane as long as it has a property of permeating water and impermeable to impurities other than water such as ions and salts.
  • the reverse osmosis membrane device 2 includes a supply port 2a for supplying water containing salt therein to the inside, a clean water discharge port 2b for discharging the purified water from which impurities are removed through the reverse osmosis membrane, a reverse osmosis membrane A concentrated water discharge port 2c is formed to discharge concentrated water containing impurities that did not permeate. That is, the water flowing into the reverse osmosis membrane device 2 from the supply port 2a passes through the reverse osmosis membrane, and the purified water discharged from the clean water discharge port 2b and the concentrated water discharge port 2c without passing through the reverse osmosis membrane It will be separated into concentrated water containing impurities to be discharged.
  • ion exchange resin 3a which forms the ion exchange resin layer 3
  • cation exchange resin, anion exchange resin etc. can be used, and various kinds of ion exchange resin are used according to the substance to be removed. be able to.
  • the ion exchange resin layer 3 is formed using granular ion exchange resin 3a. By passing raw water through the purification unit 4 provided with the ion exchange resin layer 3, purified water is generated.
  • reverse osmosis membrane device 2 and purification part 4 are arranged in parallel relation mutually, in reverse osmosis membrane device 2, salt water etc. via piping P1 which has on-off valve V1.
  • the water is introduced from the storage tank 5 in which the water contained therein is stored. Water in the storage tank 5 is supplied into the reverse osmosis membrane device 2 via a supply pump (not shown). And the purified water produced
  • the pipe P0 is connected to a faucet or the like, and the purified water is supplied through the faucet or the like.
  • raw water such as tap water is introduced into the purification unit 4 through the pipe P3, and ions in the raw water are removed and purified by the ion exchange resin layer 3.
  • the clean water thus purified and generated is supplied to the pipe P0 through the pipe P4 and the above-described three-way valve V2.
  • the three-way valve V2 can selectively supply the purified water generated by the reverse osmosis membrane device 2 and the purified water generated by the purification unit 4 to the pipe P0 (any one purified water can be obtained) There is.
  • the purification unit 4 is provided with a drain pipe P5 for draining the internal drain water outward, and the drain pipe P5 is provided with an on-off valve V3.
  • a pipe P6 for allowing the concentrated water separated by the reverse osmosis membrane device 2 to flow into the purification unit 4 is provided, and the concentrated water is used for regeneration of the ion exchange resin.
  • the concentrated water discharge port 2c of the reverse osmosis membrane device 2 is communicated with the above-described pipe P3 by the pipe P6, and the three-way valve V4 is provided in the communication part with the pipe P3.
  • the concentrated water can be introduced into the purification unit 4 by switching the three-way valve V4 to the side where the pipe P6 and the pipe P3 communicate with each other.
  • the path for supplying the concentrated water to the purification unit 4 is the pipe P6, the three-way valve V4, and the pipe P3.
  • one of the three-way valves V2 is switched to the side where the pipe P2 communicates with the pipe P0 while the on-off valves V1 and V3 are opened, and the other three-way valve V4 is operated. Switch to the side where the pipe P6 is in communication with the pipe P3. Then, the water in the storage tank 5 flows into the reverse osmosis membrane device 2 through a pump (not shown). And the purified water which permeate
  • the purification unit 4 is filled with the concentrated water, and the ion exchange resin layer 3 is immersed in the concentrated water. Then, the ion exchange resin is regenerated by the salt contained in the concentrated water.
  • the drain pipe P5 is in communication with the purification unit 4 at the upper part of the purification unit 4. Further, the pipe P3 for supplying the concentrated water to the purification unit 4 is in communication with the purification unit 4 at the lower part of the purification unit 4.
  • the supply of the purified water generated by the purification unit 4 is stopped during the regeneration of the ion exchange resin, but the reverse osmosis is performed while the purification unit 4 is stopped. Since the clean water generated by the membrane device 2 can be supplied to the distribution buffer P0, either one of the clean water can be supplied to the pipe P0. That is, in the present embodiment, the water treatment apparatus 1 is always in a state capable of supplying clean water.
  • the activated carbon layer (filtering portion in which activated carbon is disposed) 6 is accommodated in the purification unit 4 accommodating the ion exchange resin layer 3 in addition to the ion exchange resin layer 3.
  • the water treatment apparatus 1 is provided with a heating unit 7 that heats the concentrated water flowing into the purification unit 4.
  • the heating unit 7 is configured by incorporating an electric heater or the like, and is provided in the middle of the pipe P6 for supplying concentrated water to the pipe P3. Then, the concentrated water passing through the pipe P6 is heated by the heating unit 7.
  • the ion exchange resin layer 3 and the activated carbon layer 6 will be accommodated in the purification
  • the concentrated water separated by the reverse osmosis membrane device 2 is accommodated in the ion exchange resin layer (ion capturing portion) 3 via the pipe P6, the three-way valve V4, and the pipe P3. It is made to flow into the purification unit 4.
  • the ion exchange resin layer (ion capturing portion) 3 in the purification unit 4 can be immersed in concentrated water containing salt, and the ion exchange resin can be regenerated by the salt contained in the concentrated water. It will be. That is, according to the present embodiment, concentrated water that is normally discarded can be used effectively. Moreover, there is also an advantage that time and cost for regeneration of the ion exchange resin can be reduced by effectively using the concentrated water that is usually discarded.
  • the three-way valve (switching unit) V2 can selectively supply the purified water generated by the reverse osmosis membrane device 2 and the purified water generated by the purification unit 4, During regeneration of the ion exchange resin, the purified water of the reverse osmosis membrane device 2 can be supplied. As a result, the ion exchange resin can be regenerated without stopping the water supply of the water treatment apparatus 1.
  • the activated carbon layer (filtering unit) 6 in which activated carbon is disposed in the purification unit 4 impurities in raw water can be adsorbed and removed by the activated carbon.
  • the purification capacity can be further improved.
  • the chlorine-based organic compound adsorbed to the activated carbon can be separated and processed, and the activated carbon can be efficiently regenerated. it can.
  • the life of activated carbon can be extended.
  • the ion exchange resin can be regenerated, and the activated carbon can be effectively regenerated.
  • the activated carbon layer 6 is disposed upstream of the ion exchange resin layer 3 in the inflow direction of concentrated water.
  • heated concentrated water can be introduced into the activated carbon layer 6 earlier than the ion exchange resin layer 3.
  • the activated carbon layer 6 by arranging the activated carbon layer 6 on the upstream side of the inflow direction of the concentrated water rather than the ion exchange resin layer 3, the concentrated water which has flowed into the ion exchange resin layer 3 and the water temperature has decreased is the activated carbon layer Since it does not flow into 6, it is possible to increase the regeneration efficiency of activated carbon with concentrated water having a high temperature.
  • the heating part 7 was provided in the piping P6 in this embodiment and the concentrated water which passes the piping P6 is heated, it does not restrict to this,
  • the water before passing the reverse osmosis membrane apparatus 2 That is, the raw water in the raw water storage tank 5 and the pipe P1 may be heated.
  • the reverse osmosis membrane device 2 itself may be heated. In this case, it is preferable to use a high temperature type (for example, one capable of withstanding up to about 80 ° C.) as the reverse osmosis membrane in the reverse osmosis membrane device 2.
  • the water treatment apparatus 1A is provided with the reverse osmosis membrane device 2, the purification unit 4 containing the ion exchange resin layer 3 and the activated carbon layer 6, and the raw water storage tank 5 as in the first embodiment. There is.
  • the operations of the on-off valves V1 and V3 and the three-way valves V2 and V4 are also the same as in the first embodiment.
  • the water treatment apparatus 1A of the present embodiment differs from the water treatment apparatus 1 of the first embodiment mainly in that the activated carbon layer (filtering part) 6 is directly heated in the heating part 7A. It is in. That is, although the heating unit 7A is configured by an electric heater or the like as in the first embodiment, the heating unit 7A is not provided in the pipe P6, and it surrounds the outer periphery of the activated carbon layer (filtering unit) 6. Provided in the present embodiment, the heating unit 7A is provided to surround the outer periphery of the purification unit 4, but the heating unit 7A may be provided to surround only the outer periphery of the activated carbon layer (filtering unit) 6.
  • the water treatment apparatus is exemplified by the one provided with the reverse osmosis membrane device and the purification part, but various filters, additives, etc. having a water treatment function are provided besides these. May be Moreover, although the thing in which the filtration part was provided as a purification
  • the concentrated water separated by the reverse osmosis membrane device may be allowed to flow into the purification unit. That is, you may comprise the water treatment apparatus which can reproduce
  • the water stored in the storage tank may be seawater, or a saline solution may be manufactured in advance and the saline solution may be stored in the storage tank.
  • the reverse osmosis membrane device is supplied with the water in the storage tank via the supply pump, but the water is compressed in the storage tank, and Water may be supplied to the reverse osmosis membrane device using pressure.
  • the specifications (shape, size, layout, etc.) of the reverse osmosis membrane device, the water purification unit, the heating unit, and other details can be appropriately changed.
  • the water treatment apparatus which can utilize effectively the concentrated water isolate

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Nanotechnology (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

A water processing device (1) includes a purification unit (4) in which an ion trap unit (3) is provided that traps ions in raw water by making the raw water contact an ion-exchange resin (3a). In the water processing device (1), the ion-exchange resin (3a) in the purification unit (4) is recovered from the condensed water that is separated by a reverse osmosis membrane device (2).

Description

水処理装置Water treatment equipment

　本発明は、水処理装置に関する。 The present invention relates to a water treatment device.

　従来、水処理装置として、逆浸透膜を用いて原水を濾過するものが知られている（例えば、特許文献１参照）。 DESCRIPTION OF RELATED ART Conventionally, what filters raw water using a reverse osmosis membrane as a water treatment apparatus is known (for example, refer patent document 1).

　この特許文献１では、水道水を沈殿フィルターに通し、第１吸着フィルターおよび逆浸透膜フィルターを通過させ、さらにタンクを通したのち、第２吸着フィルターおよびセラミックスフィルターを通過させることで水処理を行なっている。 In Patent Document 1, tap water is passed through a precipitation filter, passed through a first adsorption filter and a reverse osmosis membrane filter, passed through a tank, and then passed through a second adsorption filter and a ceramics filter to perform water treatment. ing.

特許第４０４００７７号公報Patent No. 4040077

　しかしながら、かかる従来の逆浸透膜を用いた水処理装置では、逆浸透膜で分離される濃縮水を廃棄していた。 However, in the conventional water treatment apparatus using a reverse osmosis membrane, the concentrated water separated by the reverse osmosis membrane is discarded.

　そこで、本発明は、逆浸透膜で分離された濃縮水を有効に利用することのできる水処理装置を得ることを目的とする。 Then, an object of this invention is to obtain the water treatment apparatus which can utilize the concentrated water isolate | separated by the reverse osmosis membrane effectively.

　本発明にあっては、原水をイオン交換樹脂に接触させることで原水中のイオンを捕捉するイオン捕捉部が設けられた浄化部を備える水処理装置において、前記浄化部のイオン交換樹脂を、逆浸透膜装置で分離させた濃縮水を用いて再生するようにしたことを特徴とする。 In the present invention, in a water treatment apparatus comprising a purification unit provided with an ion capture unit for capturing ions in the raw water by bringing the raw water into contact with the ion exchange resin, the ion exchange resin of the purification unit is reversed. It is characterized in that regeneration is performed using the concentrated water separated by the osmotic membrane device.

　本発明によれば、逆浸透膜装置で分離される濃縮水を用いて、イオン交換樹脂を再生するようにしたため、通常は廃棄される濃縮水を有効利用することができる。 According to the present invention, since the ion exchange resin is regenerated using the concentrated water separated by the reverse osmosis membrane device, the concentrated water that is usually discarded can be used effectively.

図１は、本発明の第１実施形態にかかる水処理装置の模式図である。FIG. 1 is a schematic view of a water treatment apparatus according to a first embodiment of the present invention. 図２は、本発明の第２実施形態にかかる水処理装置の模式図である。FIG. 2 is a schematic view of a water treatment apparatus according to a second embodiment of the present invention.

　以下、本発明の実施形態について図面を参照しながら詳細に説明する。なお、以下の複数の実施形態には、同様の構成要素が含まれている。よって、以下では、それら同様の構成要素には共通の符号を付与するとともに、重複する説明を省略する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same component is contained in several following embodiments. Therefore, in the following, those similar components are given the same reference numerals, and redundant explanations are omitted.

　（第１実施形態）
　本実施形態にかかる水処理装置１は、海水等、塩分が含有された水を浄水（透過水）と不純物（ＮａＣｌ等の塩分）が含有される濃縮水とに分離する逆浸透膜装置２と、原水をイオン交換樹脂３ａに接触させることで原水中のイオンを捕捉するイオン交換樹脂層（イオン捕捉部）３が設けられた浄化部４と、を備えている。 First Embodiment
A water treatment apparatus 1 according to the present embodiment includes a reverse osmosis membrane device 2 for separating water containing salt such as seawater into purified water (permeate) and concentrated water containing impurities (salt such as NaCl) The purification unit 4 is provided with an ion exchange resin layer (ion capture unit) 3 for capturing ions in the raw water by bringing the raw water into contact with the ion exchange resin 3a.

　本実施形態では、逆浸透膜装置２として、内部に逆浸透膜が設けられた公知のものを用いている。この逆浸透膜としては、一般に知られるＲＯ膜（Reverse Osmosis Menbrane）やナノフィルターと称されるＮＦ膜（Nanofiltration Membrane）などを用いることができる。なお、逆浸透膜は、水を透過しイオンや塩類などの水以外の不純物を透過しない性質を有する膜であればよく、ＲＯ膜、ＮＦ膜に限られるものではない。 In this embodiment, as the reverse osmosis membrane device 2, a known one provided with a reverse osmosis membrane inside is used. As this reverse osmosis membrane, generally known RO membrane (Reverse Osmosis Menbrane), NF membrane (nanofiltration membrane) called a nanofilter, etc. can be used. The reverse osmosis membrane is not limited to the RO membrane or the NF membrane as long as it has a property of permeating water and impermeable to impurities other than water such as ions and salts.

　逆浸透膜装置２には、塩分が含有された水を内部に供給する供給口２ａと、逆浸透膜を透過して不純物が除去された浄水を吐出する浄水吐出口２ｂと、逆浸透膜を透過しなかった不純物を含む濃縮水を吐出する濃縮水吐出口２ｃが形成されている。すなわち、供給口２ａから逆浸透膜装置２内に流入した水は、逆浸透膜を透過して浄水吐出口２ｂから吐出される浄水と、逆浸透膜を透過せずに濃縮水吐出口２ｃから吐出する不純物を含む濃縮水と、に分離されることとなる。 The reverse osmosis membrane device 2 includes a supply port 2a for supplying water containing salt therein to the inside, a clean water discharge port 2b for discharging the purified water from which impurities are removed through the reverse osmosis membrane, a reverse osmosis membrane A concentrated water discharge port 2c is formed to discharge concentrated water containing impurities that did not permeate. That is, the water flowing into the reverse osmosis membrane device 2 from the supply port 2a passes through the reverse osmosis membrane, and the purified water discharged from the clean water discharge port 2b and the concentrated water discharge port 2c without passing through the reverse osmosis membrane It will be separated into concentrated water containing impurities to be discharged.

　また、イオン交換樹脂層３を形成するイオン交換樹脂３ａとしては、陽イオン交換樹脂や陰イオン交換樹脂等を用いることができ、除去しようとする物質に応じて様々な種類のイオン交換樹脂を用いることができる。本実施形態では、イオン交換樹脂３ａと原水との接触面積を大きくするために、粒状のイオン交換樹脂３ａを用いてイオン交換樹脂層３を形成している。このイオン交換樹脂層３を設けた浄化部４に原水を通すことで浄水が生成される。 Moreover, as ion exchange resin 3a which forms the ion exchange resin layer 3, cation exchange resin, anion exchange resin etc. can be used, and various kinds of ion exchange resin are used according to the substance to be removed. be able to. In the present embodiment, in order to increase the contact area between the ion exchange resin 3a and the raw water, the ion exchange resin layer 3 is formed using granular ion exchange resin 3a. By passing raw water through the purification unit 4 provided with the ion exchange resin layer 3, purified water is generated.

　そして、本実施形態では、逆浸透膜装置２と浄化部４とが互いに並列関係をもって配置されており、逆浸透膜装置２には、開閉弁Ｖ１を有する配管Ｐ１を介して、海水等、塩分が含有された水を溜めた貯留タンク５から水が導入されるようになっている。貯留タンク５内の水は、図示せぬ供給ポンプを介して逆浸透膜装置２内に供給される。そして、逆浸透膜装置２で生成された浄水は、配管Ｐ２を経由して三方弁（切換部）Ｖ２を介して配管Ｐ０に供給される。なお、配管Ｐ０は、蛇口などに接続されており、この蛇口等を介して浄水が供給されるようになっている。 And in this embodiment, reverse osmosis membrane device 2 and purification part 4 are arranged in parallel relation mutually, in reverse osmosis membrane device 2, salt water etc. via piping P1 which has on-off valve V1. The water is introduced from the storage tank 5 in which the water contained therein is stored. Water in the storage tank 5 is supplied into the reverse osmosis membrane device 2 via a supply pump (not shown). And the purified water produced | generated by the reverse osmosis membrane apparatus 2 is supplied to the piping P0 via the three-way valve (switching part) V2 via the piping P2. The pipe P0 is connected to a faucet or the like, and the purified water is supplied through the faucet or the like.

　また、浄化部４には、配管Ｐ３を介して水道水などの原水が導入されるようになっており、イオン交換樹脂層３で原水中のイオンが除去されて浄化される。このようにして浄化生成された浄水が、配管Ｐ４および上述した三方弁Ｖ２を介して配管Ｐ０に供給されるようになっている。このとき、三方弁Ｖ２の切り換えにより、配管Ｐ０に連通する配管をＰ２とするかＰ４とするかを選択できるようになっている。すなわち、三方弁Ｖ２により、逆浸透膜装置２で生成した浄水と浄化部４で生成した浄水とを選択的に配管Ｐ０に供給できるように（いずれか一方の浄水が得られるように）なっている。また、浄化部４には、内部のドレン水を外方に排出するドレン管Ｐ５が設けられており、このドレン管Ｐ５には開閉弁Ｖ３が設けられている。 Further, raw water such as tap water is introduced into the purification unit 4 through the pipe P3, and ions in the raw water are removed and purified by the ion exchange resin layer 3. The clean water thus purified and generated is supplied to the pipe P0 through the pipe P4 and the above-described three-way valve V2. At this time, by switching the three-way valve V2, it is possible to select whether the pipe communicating with the pipe P0 is P2 or P4. That is, the three-way valve V2 can selectively supply the purified water generated by the reverse osmosis membrane device 2 and the purified water generated by the purification unit 4 to the pipe P0 (any one purified water can be obtained) There is. Further, the purification unit 4 is provided with a drain pipe P5 for draining the internal drain water outward, and the drain pipe P5 is provided with an on-off valve V3.

　ここで、本実施形態では、逆浸透膜装置２で分離された濃縮水を浄化部４に流入させる配管Ｐ６を設け、濃縮水をイオン交換樹脂の再生に用いるようにしている。具体的には、配管Ｐ６によって、逆浸透膜装置２の濃縮水吐出口２ｃと上述した配管Ｐ３とを連通し、配管Ｐ３との連通部分には三方弁Ｖ４を設けている。そして、三方弁Ｖ４を、配管Ｐ６と配管Ｐ３とが連通される側に切り換えることにより、濃縮水を浄化部４に導入できるようにしている。このとき、濃縮水を浄化部４に供給する経路は、配管Ｐ６、三方弁Ｖ４、配管Ｐ３となる。 Here, in the present embodiment, a pipe P6 for allowing the concentrated water separated by the reverse osmosis membrane device 2 to flow into the purification unit 4 is provided, and the concentrated water is used for regeneration of the ion exchange resin. Specifically, the concentrated water discharge port 2c of the reverse osmosis membrane device 2 is communicated with the above-described pipe P3 by the pipe P6, and the three-way valve V4 is provided in the communication part with the pipe P3. Then, the concentrated water can be introduced into the purification unit 4 by switching the three-way valve V4 to the side where the pipe P6 and the pipe P3 communicate with each other. At this time, the path for supplying the concentrated water to the purification unit 4 is the pipe P6, the three-way valve V4, and the pipe P3.

　次に、本実施形態にかかる水処理装置１の通常運転時と再生運転時における動作を説明する。 Next, operations during normal operation and regeneration operation of the water treatment apparatus 1 according to the present embodiment will be described.

　まず、通常運転時には、開閉弁Ｖ１、Ｖ３を閉弁した状態で、一方の三方弁Ｖ２を、配管Ｐ４が配管Ｐ０に連通される側に切り換えておくとともに、他方の三方弁Ｖ４を、配管Ｐ３と配管Ｐ６とを遮断する側に切り換えておく。すると、原水が配管Ｐ３を介して浄化部４に流入し、当該浄化部４のイオン交換樹脂層３にてイオン交換された浄水が、配管Ｐ４から配管Ｐ０へと供給されることになる。 First, at the time of normal operation, while the on-off valves V1 and V3 are closed, one of the three-way valves V2 is switched to the side where the pipe P4 communicates with the pipe P0, and the other three-way valve V4 is connected to the pipe P3. And the piping P6 are switched to the side to shut off. Then, the raw water flows into the purification unit 4 through the piping P3, and the purified water ion-exchanged by the ion exchange resin layer 3 of the purification unit 4 is supplied from the piping P4 to the piping P0.

　一方、イオン交換樹脂の再生運転時は、開閉弁Ｖ１、Ｖ３を開弁した状態で、一方の三方弁Ｖ２を、配管Ｐ２が配管Ｐ０に連通される側に切り換えるとともに、他方の三方弁Ｖ４を、配管Ｐ６が配管Ｐ３に連通される側に切り換える。すると、貯留タンク５内の水が図示せぬポンプを介して逆浸透膜装置２内に流入する。そして、逆浸透膜装置２の逆浸透膜を透過してＮａＣｌ等の不純物が除去された浄水は、配管Ｐ２および三方弁Ｖ２を介して配管Ｐ０へと供給されることになる。また、逆浸透膜装置２で分離された濃縮水（逆浸透膜を通過しない水）は、配管Ｐ６、三方弁Ｖ４および配管Ｐ３を介して浄化部４に流入し、浄化部４を充満した後にドレン配管Ｐ５から外方に排出されることとなる。 On the other hand, during regeneration operation of the ion exchange resin, one of the three-way valves V2 is switched to the side where the pipe P2 communicates with the pipe P0 while the on-off valves V1 and V3 are opened, and the other three-way valve V4 is operated. Switch to the side where the pipe P6 is in communication with the pipe P3. Then, the water in the storage tank 5 flows into the reverse osmosis membrane device 2 through a pump (not shown). And the purified water which permeate | transmitted the reverse osmosis membrane of the reverse osmosis membrane apparatus 2, and impurities, such as NaCl, were removed is supplied to the piping P0 via the piping P2 and the three-way valve V2. The concentrated water (water not passing through the reverse osmosis membrane) separated by the reverse osmosis membrane device 2 flows into the purification unit 4 through the pipe P6, the three-way valve V4 and the pipe P3 and fills the purification portion 4 It will be discharged outside from drain piping P5.

　このように、再生運転時には、浄化部４が濃縮水で充満されることとなり、イオン交換樹脂層３が濃縮水中に浸漬される。そして、濃縮水に含有される塩分によってイオン交換樹脂が再生される。このとき、浄化部４内を濃縮水で充満するために、ドレン配管Ｐ５は浄化部４の上部で浄化部４に連通されている。また、浄化部４に濃縮水を供給する配管Ｐ３は、浄化部４の下部で浄化部４に連通されている。 Thus, at the time of the regeneration operation, the purification unit 4 is filled with the concentrated water, and the ion exchange resin layer 3 is immersed in the concentrated water. Then, the ion exchange resin is regenerated by the salt contained in the concentrated water. At this time, in order to fill the inside of the purification unit 4 with concentrated water, the drain pipe P5 is in communication with the purification unit 4 at the upper part of the purification unit 4. Further, the pipe P3 for supplying the concentrated water to the purification unit 4 is in communication with the purification unit 4 at the lower part of the purification unit 4.

　このように、本実施形態の水処理装置１では、イオン交換樹脂の再生中は、浄化部４で生成される浄水の供給が停止されることになるが、浄化部４の停止中は逆浸透膜装置２で生成される浄水を配寛Ｐ０に供給することができるようになっているため、配管Ｐ０にいずれか一方の浄水を供給できるようになっている。すなわち、本実施形態では、水処理装置１が常に浄水供給可能な態勢となるようにしている。 As described above, in the water treatment apparatus 1 of the present embodiment, the supply of the purified water generated by the purification unit 4 is stopped during the regeneration of the ion exchange resin, but the reverse osmosis is performed while the purification unit 4 is stopped. Since the clean water generated by the membrane device 2 can be supplied to the distribution buffer P0, either one of the clean water can be supplied to the pipe P0. That is, in the present embodiment, the water treatment apparatus 1 is always in a state capable of supplying clean water.

　さらに、本実施形態では、イオン交換樹脂層３を収納した浄化部４には、イオン交換樹脂層３以外に活性炭層（活性炭が配置された濾過部）６が収納されている。このように、活性炭層６を設け、当該活性炭層６内に原水を流入させることで、原水中の残留塩素やトリハロメタン、カビ臭などを活性炭に吸着させて除去することができるようになる。また、水処理装置１には、浄化部４に流入する濃縮水を加熱する加熱部７が設けられている。 Furthermore, in the present embodiment, the activated carbon layer (filtering portion in which activated carbon is disposed) 6 is accommodated in the purification unit 4 accommodating the ion exchange resin layer 3 in addition to the ion exchange resin layer 3. As described above, by providing the activated carbon layer 6 and letting the raw water flow into the activated carbon layer 6, residual chlorine, trihalomethane, mold odor and the like in the raw water can be adsorbed to the activated carbon and removed. In addition, the water treatment apparatus 1 is provided with a heating unit 7 that heats the concentrated water flowing into the purification unit 4.

　本実施形態では、加熱部７は、電熱ヒータなどを内蔵することにより構成されており、濃縮水を配管Ｐ３に供給する配管Ｐ６の途中に設けられている。そして、この加熱部７により配管Ｐ６を通過する濃縮水を加熱するようにしている。 In the present embodiment, the heating unit 7 is configured by incorporating an electric heater or the like, and is provided in the middle of the pipe P6 for supplying concentrated water to the pipe P3. Then, the concentrated water passing through the pipe P6 is heated by the heating unit 7.

　また、浄化部４には、イオン交換樹脂層３および活性炭層６が収納されることとなるが、本実施形態では、活性炭層６を、イオン交換樹脂層３よりも濃縮水の流入方向上流側（図１中下側）に配置している。 Moreover, although the ion exchange resin layer 3 and the activated carbon layer 6 will be accommodated in the purification | cleaning part 4, in this embodiment, the inflow direction upstream side of concentrated water rather than the ion exchange resin layer 3 is carried out. (The lower side in FIG. 1) is disposed.

　以上説明したように、本実施形態によれば、逆浸透膜装置２で分離される濃縮水を配管Ｐ６、三方弁Ｖ４、配管Ｐ３を介してイオン交換樹脂層（イオン捕捉部）３を収納した浄化部４に流入させるようにしている。これにより、浄化部４内のイオン交換樹脂層（イオン捕捉部）３を塩分が含有された濃縮水で浸漬することができるようになり、濃縮水に含有される塩分によってイオン交換樹脂を再生できるようになる。すなわち、本実施形態によれば、通常は廃棄される濃縮水を有効利用することができる。また、通常廃棄される濃縮水を有効利用することで、イオン交換樹脂の再生に手間やコストがかからなくなるという利点もある。 As described above, according to the present embodiment, the concentrated water separated by the reverse osmosis membrane device 2 is accommodated in the ion exchange resin layer (ion capturing portion) 3 via the pipe P6, the three-way valve V4, and the pipe P3. It is made to flow into the purification unit 4. As a result, the ion exchange resin layer (ion capturing portion) 3 in the purification unit 4 can be immersed in concentrated water containing salt, and the ion exchange resin can be regenerated by the salt contained in the concentrated water. It will be. That is, according to the present embodiment, concentrated water that is normally discarded can be used effectively. Moreover, there is also an advantage that time and cost for regeneration of the ion exchange resin can be reduced by effectively using the concentrated water that is usually discarded.

　また、本実施形態によれば、三方弁（切換部）Ｖ２によって逆浸透膜装置２で生成した浄水と、浄化部４で生成した浄水と、を選択的に供給することができるようにしたため、イオン交換樹脂の再生中は逆浸透膜装置２の浄水を供給することができる。その結果、水処理装置１の浄水供給を停止することなくイオン交換樹脂を再生することができるようになる。 Further, according to the present embodiment, the three-way valve (switching unit) V2 can selectively supply the purified water generated by the reverse osmosis membrane device 2 and the purified water generated by the purification unit 4, During regeneration of the ion exchange resin, the purified water of the reverse osmosis membrane device 2 can be supplied. As a result, the ion exchange resin can be regenerated without stopping the water supply of the water treatment apparatus 1.

　また、本実施形態によれば、浄化部４に、活性炭が配置された活性炭層（濾過部）６を設けることで、活性炭により原水中の不純物を吸着除去することができ、水処理装置１の浄化能力をさらに向上することができる。そして、加熱部７により加熱された濃縮水を活性炭層（濾過部）６に流入することで、活性炭に吸着された塩素系有機化合物を分離処理することができ、活性炭を効率よく再生することができる。その結果、活性炭の寿命を延ばすことができるようになる。このように、濃縮水を加熱して浄化部に流入させることで、イオン交換樹脂を再生することができる上、活性炭を効果的に再生することができるようになる。 Further, according to the present embodiment, by providing the activated carbon layer (filtering unit) 6 in which activated carbon is disposed in the purification unit 4, impurities in raw water can be adsorbed and removed by the activated carbon. The purification capacity can be further improved. Then, by flowing the concentrated water heated by the heating unit 7 into the activated carbon layer (filtering unit) 6, the chlorine-based organic compound adsorbed to the activated carbon can be separated and processed, and the activated carbon can be efficiently regenerated. it can. As a result, the life of activated carbon can be extended. As described above, by heating the concentrated water to flow into the purification unit, the ion exchange resin can be regenerated, and the activated carbon can be effectively regenerated.

　さらに、本実施形態によれば、浄化部４にイオン交換樹脂層３と活性炭層６を収納した場合に、活性炭層６を、イオン交換樹脂層３よりも濃縮水の流入方向上流側に配置することで、加熱された濃縮水をイオン交換樹脂層３よりも先に活性炭層６に流入させることができる。このように、活性炭層６を、イオン交換樹脂層３よりも濃縮水の流入方向上流側に配置することで、イオン交換樹脂層３に流入して水温が低下してしまった濃縮水を活性炭層６に流入させることがなくなるため、温度の高い濃縮水で活性炭の再生効率を高めることができるようになる。 Furthermore, according to the present embodiment, when the ion exchange resin layer 3 and the activated carbon layer 6 are accommodated in the purification unit 4, the activated carbon layer 6 is disposed upstream of the ion exchange resin layer 3 in the inflow direction of concentrated water. Thus, heated concentrated water can be introduced into the activated carbon layer 6 earlier than the ion exchange resin layer 3. Thus, by arranging the activated carbon layer 6 on the upstream side of the inflow direction of the concentrated water rather than the ion exchange resin layer 3, the concentrated water which has flowed into the ion exchange resin layer 3 and the water temperature has decreased is the activated carbon layer Since it does not flow into 6, it is possible to increase the regeneration efficiency of activated carbon with concentrated water having a high temperature.

　なお、本実施形態では、配管Ｐ６に加熱部７を設けて、その配管Ｐ６を通過する濃縮水を加熱するようにしたが、これに限ることなく、逆浸透膜装置２を通過する前の水、すなわち、原水貯留タンク５や配管Ｐ１内の原水を加熱するようにしてもよい。また、逆浸透膜装置２そのものを加熱するようにしてもよい。この場合、逆浸透膜装置２内の逆浸透膜として高温タイプ（たとえば、８０゜Ｃ程度まで耐え得るもの）のものを使用することが好ましい。 In addition, although the heating part 7 was provided in the piping P6 in this embodiment and the concentrated water which passes the piping P6 is heated, it does not restrict to this, The water before passing the reverse osmosis membrane apparatus 2 That is, the raw water in the raw water storage tank 5 and the pipe P1 may be heated. In addition, the reverse osmosis membrane device 2 itself may be heated. In this case, it is preferable to use a high temperature type (for example, one capable of withstanding up to about 80 ° C.) as the reverse osmosis membrane in the reverse osmosis membrane device 2.

　（第２実施形態）
　本実施形態にかかる水処理装置１Ａは、上記第１実施形態と同様に、逆浸透膜装置２、イオン交換樹脂層３および活性炭層６を収納した浄化部４、原水貯留タンク５が設けられている。また、開閉弁Ｖ１、Ｖ３および三方弁Ｖ２、Ｖ４の作動も上記第１実施形態と同様である。 Second Embodiment
The water treatment apparatus 1A according to the present embodiment is provided with the reverse osmosis membrane device 2, the purification unit 4 containing the ion exchange resin layer 3 and the activated carbon layer 6, and the raw water storage tank 5 as in the first embodiment. There is. The operations of the on-off valves V1 and V3 and the three-way valves V2 and V4 are also the same as in the first embodiment.

　ここで、本実施形態の水処理装置１Ａが上記第１実施形態の水処理装置１と主に異なる点は、加熱部７Ａで、活性炭層（濾過部）６を直接に加熱するようにしたことにある。すなわち、加熱部７Ａは、上記第１実施形態と同様に電熱ヒータなどで構成されているが、この加熱部７Ａを配管Ｐ６に設けるのではなく、活性炭層（濾過部）６の外周を取り巻くように設けている。なお、本実施形態では、加熱部７Ａを浄化部４の外周を取り巻くように設けているが、加熱部７Ａを、活性炭層（濾過部）６の外周のみを取り巻くように設けてもよい。 Here, the point that the water treatment apparatus 1A of the present embodiment differs from the water treatment apparatus 1 of the first embodiment mainly in that the activated carbon layer (filtering part) 6 is directly heated in the heating part 7A. It is in. That is, although the heating unit 7A is configured by an electric heater or the like as in the first embodiment, the heating unit 7A is not provided in the pipe P6, and it surrounds the outer periphery of the activated carbon layer (filtering unit) 6. Provided in In the present embodiment, the heating unit 7A is provided to surround the outer periphery of the purification unit 4, but the heating unit 7A may be provided to surround only the outer periphery of the activated carbon layer (filtering unit) 6.

　以上の本実施形態によっても、上記第１実施形態と同様の作用効果を奏することができる。 According to the above-described embodiment, the same function and effect as those of the first embodiment can be obtained.

　また、本実施形態によれば、活性炭層（濾過部）６を加熱する加熱部７Ａを設けることで、活性炭層（濾過部）６を直接加熱することができるため、活性炭の加熱効率が向上し、ひいては、活性炭の再生をより一層促進することができるようになる。また、濃縮水そのものを加熱する必要がなくなるため、配管や逆浸透膜を耐熱性部材とする必要がなくなり、水処理装置の製造コストを削減することが可能となる。 Further, according to the present embodiment, by providing the heating unit 7A for heating the activated carbon layer (filtering unit) 6, the activated carbon layer (filtering unit) 6 can be directly heated, so the heating efficiency of the activated carbon is improved. As a result, regeneration of activated carbon can be further promoted. Moreover, since it is not necessary to heat concentrated water itself, it is not necessary to use piping and a reverse osmosis membrane as a heat resistant member, and it becomes possible to reduce the manufacturing cost of a water treatment apparatus.

　以上、本発明の好適な実施形態について説明したが、本発明は上記実施形態には限定されず、種々の変形が可能である。 As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

　例えば、上記各実施形態では、水処理装置として、逆浸透膜装置および浄化部を設けたものを例示しているが、これら以外にも水処理機能を有する各種フィルターや添加剤等が設けられていてもよい。また、浄化部として濾過部が設けられたものを例示したが、濾過部は設けられていなくてもよい。 For example, in each of the above embodiments, the water treatment apparatus is exemplified by the one provided with the reverse osmosis membrane device and the purification part, but various filters, additives, etc. having a water treatment function are provided besides these. May be Moreover, although the thing in which the filtration part was provided as a purification | cleaning part was illustrated, the filtration part does not need to be provided.

　また、上記各実施形態では、逆浸透膜装置で生成した浄水と浄化部で生成した浄水を同一の蛇口等から吐水させる構造を例示したが、それぞれで生成された浄水を別個の蛇口等から吐水させるようにしてもよい。 Moreover, although the said each embodiment illustrated the structure which makes the clean water produced | generated by the reverse osmosis membrane apparatus and the purified water produced | generated by the purification | cleaning part water discharge from the same faucet etc. You may make it

　また、単に逆浸透膜装置で分離した濃縮水を浄化部に流入させるようにしてもよい。すなわち、別の用途で用いられている逆浸透膜装置の濃縮水を利用して、イオン交換樹脂の再生が可能な水処理装置を構成してもよい。 Alternatively, the concentrated water separated by the reverse osmosis membrane device may be allowed to flow into the purification unit. That is, you may comprise the water treatment apparatus which can reproduce | regenerate an ion exchange resin using the concentrated water of the reverse osmosis membrane apparatus used by another use.

　また、貯留タンクには貯留する水は、海水でもよいし、予め食塩水を製造してその食塩水を貯留タンク内に溜めるようにしてもよい。 The water stored in the storage tank may be seawater, or a saline solution may be manufactured in advance and the saline solution may be stored in the storage tank.

　また、上記各実施形態では、供給ポンプを介して逆浸透膜装置に貯留タンク内の水を供給するものを例示したが、貯留タンク内に水を圧縮状態で封入しておき、貯留タンク内の圧力を利用して水が逆浸透膜装置に供給されるようにしてもよい。 In each of the above embodiments, the reverse osmosis membrane device is supplied with the water in the storage tank via the supply pump, but the water is compressed in the storage tank, and Water may be supplied to the reverse osmosis membrane device using pressure.

　また、逆浸透膜装置や浄水部、加熱部、その他細部のスペック（形状、大きさ、レイアウト等）も適宜に変更可能である。 In addition, the specifications (shape, size, layout, etc.) of the reverse osmosis membrane device, the water purification unit, the heating unit, and other details can be appropriately changed.

　本発明によれば、逆浸透膜で分離された濃縮水を有効に利用することのできる水処理装置を得ることができる。 ADVANTAGE OF THE INVENTION According to this invention, the water treatment apparatus which can utilize effectively the concentrated water isolate | separated by the reverse osmosis membrane can be obtained.

Claims (6)

　原水をイオン交換樹脂に接触させることで原水中のイオンを捕捉するイオン捕捉部が設けられた浄化部を備える水処理装置において、
　前記浄化部のイオン交換樹脂を、逆浸透膜装置で分離させた濃縮水を用いて再生するようにしたことを特徴とする水処理装置。 In a water treatment apparatus including a purification unit provided with an ion capturing unit that captures ions in raw water by contacting the raw water with an ion exchange resin,
A water treatment apparatus characterized in that the ion exchange resin of the purification unit is regenerated using concentrated water separated by a reverse osmosis membrane device. 　前記逆浸透膜装置で生成した浄水と、前記浄化部で生成した浄水と、を選択的に供給できるようにした切換部を設け、前記イオン交換樹脂の再生中は逆浸透膜装置で生成した浄水を供給するようにしたことを特徴とする請求項１に記載の水処理装置。 A switching unit is provided to selectively supply the purified water generated by the reverse osmosis membrane device and the purified water generated by the purification unit, and the purified water generated by the reverse osmosis membrane device during regeneration of the ion exchange resin The water treatment apparatus according to claim 1, characterized in that: 　前記逆浸透膜装置で分離させた濃縮水を前記浄化部に流入させるとともに、前記逆浸透膜装置で生成した浄水を前記切換部を介して供給することで、前記イオン交換樹脂の再生中は逆浸透膜装置で生成した浄水を供給するようにしたことを特徴とする請求項２に記載の水処理装置。 The concentrated water separated by the reverse osmosis membrane device is made to flow into the purification unit, and the purified water generated by the reverse osmosis membrane device is supplied through the switching portion, so that the regeneration of the ion exchange resin is reversed. The water treatment device according to claim 2, wherein the purified water generated by the osmotic membrane device is supplied. 　前記浄化部に、活性炭が配置された濾過部を設けるとともに、前記水処理装置に前記濾過部に流入する濃縮水を加熱する加熱部を設けたことを特徴とする請求項１～３のうちいずれか１項に記載の水処理装置。 4. The water purification apparatus according to claim 1, further comprising: a filtration unit in which activated carbon is disposed in the purification unit, and a heating unit configured to heat concentrated water flowing into the filtration unit in the water treatment apparatus. The water treatment apparatus according to any one of the preceding claims. 　前記濾過部を、前記イオン捕捉部よりも前記濃縮水の流入方向上流側に配置したことを特徴とする請求項４に記載の水処理装置。 5. The water treatment apparatus according to claim 4, wherein the filtration unit is disposed upstream of the ion capturing unit in the inflow direction of the concentrated water. 　前記浄化部に、活性炭が配置された濾過部を設けるとともに、前記水処理装置に前記濾過部を加熱する加熱部を設けたことを特徴とする請求項１～３のうちいずれか１項に記載の水処理装置。 The said purification | cleaning part was provided with the filtration part in which activated carbon was arrange | positioned, and the heating part which heats the said filtration part is provided in the said water treatment apparatus, It is characterized by the above-mentioned. Water treatment equipment.
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