JP4859504B2 - Water treatment system and method for controlling the water treatment system - Google Patents

Description

  The present invention relates to a water treatment system and a control method for the water treatment system.

Raw water such as groundwater, river water, and tap water is used as cooling water in cooling devices such as boilers in power plants. In the raw water, various ions such as calcium ions and magnesium ions such as magnesium ions and silica ions (SiO ₂ ⁻ ) are dissolved, and these ions cause scale, sludge, corrosion, etc. in the cooling device. It has become.
Therefore, attention has been paid to a water treatment device that removes ions from raw water circulating in the cooling device.

A conventional water treatment apparatus has a flow path through which water flows and ion exchange means provided in the middle of the flow path and containing an ion exchange resin.
According to such a water treatment apparatus, since the ion exchange means is provided in the middle of the flow path, ions contained in the water flowing through the flow path are adsorbed by the ion exchange resin, so that the ions can be removed.

  By the way, as the adsorption amount of ions increases, the ion adsorption ability of the ion exchange resin decreases. Therefore, in order to recover the ion adsorption capacity, it is necessary to regenerate the ions adsorbed on the ion exchange resin at a predetermined timing.

Therefore, the conventional water treatment apparatus includes a flow path through which water flows, ion exchange means provided in the middle of the flow path and containing ion exchange resin, and presence of ions leaked into the water that has passed through the ion exchange means. Leakage detection means for detecting (see, for example, Patent Document 1).
According to such a water treatment apparatus, since the leakage detection means is provided, when ions are detected by the leakage detection means, it can be determined that the ion adsorption capacity of the ion exchange resin is insufficient. For this reason, after the detection of the ions by the detection means, the ion exchange resin accommodated in the ion exchange means is regenerated.
JP 2001-205261 A

  However, according to the water treatment apparatus disclosed in Patent Document 1 described above, at the stage where the leakage detection means has detected ions, the ions have already passed through the ion exchange means without being adsorbed to the cooling device. It has been introduced. For this reason, scale, sludge, corrosion, etc. may occur.

  Therefore, measures such as regenerating the ion exchange resin at an early stage can be considered. However, in this measure, the frequency of regeneration of the ion exchange resin is inevitably high, and the progress of deterioration of the ion exchange resin due to swelling shrinkage or the like during regeneration is accelerated.

  The present invention has been made in view of the above problems, and is a water treatment system that can sufficiently suppress the occurrence of scale, sludge, corrosion, and the like, and can suppress the regeneration frequency of the ion exchange resin, and a control method for the water treatment system The purpose is to provide.

  The present inventors have found that an appropriate regeneration time of the ion exchange resin can be specified by detecting the amount of ions contained in the water supplied to the ion exchange resin, and have completed the present invention.

(1) A water treatment system comprising a flow path through which water flows and ion exchange means provided in the middle of the flow path and containing an ion exchange resin,
The water treatment system further comprising a detecting means for detecting the amount of ions contained in the water supplied to the ion exchange resin.

According to the invention of (1), since the detection means is provided, the amount of ions contained in the water supplied to the ion exchange resin is detected, so the remaining amount value of the ion exchange capacity of the ion exchange resin is grasped. it can.
For this reason, if the lower limit of the ion exchange capacity that can prevent leakage of ions with a desired safety factor is set, taking into consideration the possibility of occurrence of inflow of high concentration water, etc. Until the remaining value of the ion exchange capacity to be reached reaches the lower limit value, ions to be exchanged can be adsorbed to the ion exchange resin without excess or deficiency.

  Therefore, generation | occurrence | production of a scale, sludge, corrosion, etc. can fully be suppressed, and the reproduction | regeneration frequency of an ion exchange resin can be suppressed.

(2) In the water treatment system according to (1),
The flow path has a collecting means for collecting the supply water provided upstream of the ion exchange means in the flow path,
The detecting means is a collected water detecting means for detecting an ion concentration contained in the collected water collected by the collecting means;
A water treatment system comprising: a supply water amount detection means for detecting the amount of the supply water.

According to the invention of (2), the collecting means is provided in the flow path, and the collected water detecting means and the supply water detecting means are provided in the detecting means, so that the concentration of ions contained in the collected water is detected by the collected water detecting means. The amount of supplied water is detected by the supplied water detection means. Further, the ion concentration contained in the collected water can be regarded as the ion concentration contained in the supply water.
For this reason, since the amount of ions contained in the feed water is detected simply by calculating the product of these detection values, the remaining value of the ion exchange capacity of the ion exchange resin can be easily grasped.

  Therefore, it is possible to easily suppress the occurrence of scale, sludge, corrosion, etc. and to suppress the frequency of regeneration of the ion exchange resin.

(3) In the water treatment system according to (2),
The collection means has a branch path in which the flow path branches upstream of the ion exchange means,
The collected water detection means includes an ion separation means connected to the branch path and containing an ion exchange resin, and has an ion concentration detection means for detecting an ion concentration contained in the collected water. system.

According to the invention of (3), the branch passage provided in the collecting means, the adsorption amount detector (ion concentration detecting means) provided in the collecting water detecting means, collected water by adsorption amount detector (ion concentration detecting means) The ion concentration contained in is detected. Since the amount of ions contained in the feed water is detected simply by calculating the product of this ion concentration and the amount of feed water detected by the feed water detection means, the remaining amount of ion exchange capacity of the ion exchange resin The value can be easily grasped.

  Since ion exchange resins are expensive, using ion exchange resins may increase the cost burden. However, according to the invention of (3), since the ion exchange resin is used for the collected water detection means for investigating a small amount of collected water, a small amount of the ion exchange resin is sufficient, which is given to the user. Cost burden can be reduced.

  Therefore, even if an ion exchange resin is used as the detection means, generation of scale, sludge, corrosion, etc. can be sufficiently suppressed easily and inexpensively, and the regeneration frequency of the ion exchange resin can be suppressed.

(4) In the water treatment system according to any one of (1) to (3),
Informing means for informing instruction information for instructing regeneration of the ion exchange resin accommodated in the ion exchange means;
Control means for controlling the water treatment system,
When the amount of ions contained in the supply water obtained based on the detection value by the detection means has reached a first predetermined ratio of the ion exchange capacity of the ion exchange resin, the control means notifies the notification. A water treatment system comprising notification determining means for activating the means.

According to the invention of (4), the water treatment system operates as follows.
First, the lower limit value of the ion exchange capacity that can prevent leakage of ions with a desired safety factor is set in consideration of the possibility of occurrence of a situation where water containing a high concentration flows. The difference between this lower limit value and the initial ion exchange capacity of the ion exchange resin to be used is calculated. For example, the ratio of the difference in the initial ion exchange capacity of the ion exchange resin is defined as the first predetermined ratio.
Next, this ion exchange resin is accommodated in the ion exchange means, and water treatment is started. The detection means detects the amount of ions contained in the water supplied to the ion exchange resin.
The notification determination unit activates the notification unit when the detection value by the raw water detection unit has reached the first predetermined ratio of the detection value by the reclaimed water detection unit.

  Therefore, when the ion exchange capacity falls below the lower limit of the ion exchange capacity that can prevent the leakage of ions with a desired safety factor, the instruction information is notified, so that it is possible to suppress the loss of the timing for regenerating the ion exchange resin. .

  Here, the “first predetermined ratio” is an ion exchange capacity capable of preventing leakage of ions at a desired safety factor, taking into consideration the possibility of occurrence of a situation in which water containing a high concentration flows. The difference between the lower limit value and the initial ion exchange capacity of the ion exchange resin used indicates the ratio of the initial ion exchange capacity. In addition, the “lower limit value of the ion exchange capacity” is preferably set in consideration of leakage of ions from the time when the notification unit is activated until the start of regeneration of the ion exchange resin.

(5) In the water treatment system according to (4),
A plurality of the ion exchange means are provided in parallel in the middle of the flow path,
The water treatment system further comprises switching means for switching the ion exchange means through which the water passes,
When the amount of ions contained in the supply water obtained based on the detection value by the detection means has reached a second predetermined ratio of the ion exchange capacity of the ion exchange resin, the control means performs the switching. A water treatment system further comprising a switching determination means for activating the means.

  According to the invention of (5), since the switching means and the switching determination means are provided, the amount of ions contained in the feed water obtained based on the detection value by the detection means is the ion exchange capacity of the ion exchange resin to be used. If the second predetermined ratio has been reached, the switching determination means activates the switching means. As a result, the ion exchange means through which water passes is switched, and the water flows to the ion exchange means having a sufficient ion exchange capacity, so that ion leakage can be more reliably suppressed.

  Here, the switching determination means controls the switching means so as to switch to an ion exchange means having an ion exchange capacity exceeding the lower limit value of the ion exchange capacity, which can prevent leakage of ions with a desired safety factor.

  Here, the “second predetermined ratio” is preferably set to be equal to or greater than the “first predetermined ratio”. Thus, even when the ion exchange resin is not regenerated after the notification means is activated, the switching means switches the ion exchange means, so that leakage of ions can be suppressed.

(6) A control method of a water treatment system comprising a flow path through which water flows and ion exchange means provided in the middle of the flow path and containing an ion exchange resin,
A detection procedure for detecting the amount of ions contained in the water supplied to the ion exchange resin;
A notification procedure for informing instruction information for instructing regeneration of the ion exchange resin when a detection value in the detection procedure has reached a predetermined ratio of the ion exchange capacity of the ion exchange resin. A method for controlling a water treatment system.

The control method described in (6) is obtained by developing the water treatment system described in (1) to (5) as a control method.
Therefore, according to the invention of (6), the same effects as (1) to (5) can be obtained.

According to the present invention, since the detection means is provided, the amount of ions contained in the water supplied to the ion exchange resin is detected, so that the remaining value of the ion exchange capacity of the ion exchange resin can be grasped. For this reason, if the lower limit of the ion exchange capacity that can prevent leakage of ions with a desired safety factor is set, taking into consideration the possibility of occurrence of inflow of high concentration water, etc. Until the remaining value of the ion exchange capacity to be reached reaches the lower limit value, ions to be exchanged can be adsorbed to the ion exchange resin without excess or deficiency.
Therefore, generation | occurrence | production of a scale, sludge, corrosion, etc. can fully be suppressed, and the reproduction | regeneration frequency of an ion exchange resin can be suppressed.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of each embodiment other than the first embodiment, the same reference numerals are given to those common to the first embodiment, and the description thereof is omitted or simplified.

FIG. 1 is a block diagram of a water treatment system 1 according to an embodiment of the present invention.
The water treatment system 1 includes a desalting apparatus 10, a detection apparatus 20 as detection means, a notification unit 30, and a calculation apparatus 40.

  The desalination apparatus 10 is provided in the middle of a raw water flow path 11 as a flow path through which raw water as an example of water flows, and raw water flow paths 11a and 11b in which the raw water flow path 11 is divided in parallel. 121b includes ion exchangers 12a and 12b serving as ion exchange means.

  As the ion exchange resins 121a and 121b, those capable of detecting both the cation concentration and the anion concentration are used. These cation exchange resin and anion exchange resin are arranged in series along the direction in which the raw water flows.

  The raw water flowing through the raw water flow path 11 is supplied from the condenser 80, passes through the ion exchanger 12 a or 12 b, and is introduced into the boiler 90. The raw water flow path 11 has a branch path 26 branched upstream of the ion exchangers 12a and 12b. The branch path 26 communicates with an ion separator 21 described later, and a sampling valve 261 is provided in the middle of the branch path 26. The branch path 26 and the collection valve 261 constitute a collection means.

  Raw water supply valves 113a and 113b are provided upstream of the ion exchangers 12a and 12b in the raw water flow paths 11a and 11b, respectively, and raw water discharge valves 114a and 114b are provided downstream. A raw water flow meter 111 is provided upstream of the ion exchangers 12 a and 12 b in the raw water flow path 11.

  The raw water supply valves 113a to 113b and the raw water discharge valves 114a to 114b are respectively connected to a calculation unit 41 described later and configured to be independently controllable. Thus, the raw water supply valves 113a to 113b and the raw water discharge valves 114a to 114b constitute a switching unit.

  The detection device 20 includes an ion separator 21 as an ion separation means connected to the branch path 26 and containing an ion exchange resin 211, and a regenerated water supply means for supplying regenerated water to the ion separator 21 via a regenerated water supply path 24. As an unillustrated discharge means for discharging collected water (referring to raw water collected through the branch path 26) or reclaimed water that has passed through the ion separator 21 via the discharge path 25 and the acid supply unit 22 and the alkali supply unit 23 as And an outlet.

  The ion exchange resin 211 has a cation exchange resin and an anion exchange resin. These cation exchange resin and anion exchange resin are arranged in series along the direction in which the recycled water flows.

  The reclaimed water supply path 24 communicates with the acid supplier 22 via the acid supply path 241 and to the alkali supplier 23 via the alkali supply path 242. An acid supply valve 243 is provided in the middle of the acid supply path 241, and an alkali supply valve 244 is provided in the middle of the alkali supply path 242. By introducing regenerated water into the ion separator 21, ions adsorbed on the ion exchange resin 211 are desorbed, and the ion exchange resin 211 is regenerated.

In the middle of the discharge path 25, a discharge path conductivity meter 251 as an adsorption amount detection means (ion concentration detection means) is provided.

  The ion separator 21 and the discharge path conductivity meter 251 constitute a collected water detection means.

  The alerting | reporting part 30 alert | reports the instruction information which instruct | indicates reproduction | regeneration of the ion exchange resin 121a and 121b accommodated in the ion exchangers 12a and 12b, respectively. Specifically, the notification unit 30 includes a monitor 31 and a speaker 32 and is connected to a calculation unit 41 described later.

FIG. 2 is a block diagram of the arithmetic device 40.
The calculation device 40 includes a calculation unit 41, a raw water flow meter 111 as a collected water detection unit, and a discharge path conductivity meter 251.
The raw water flow meter 111 measures the amount of supplied water and transmits it to the calculation unit 41.
The discharge path conductivity meter 251 desorbs ions adsorbed on the ion exchange resin 211 accommodated in the ion separator 21 by introducing regenerated water into the ion separator 21 by the acid supplier 22 and the alkali supplier 23. Then, the concentration of ions contained in the collected water collected by the collecting means is measured and transmitted to the calculation unit 41.

  The calculation unit 41 includes a calculation unit 411 and a control unit 42 as control means. The control unit 42 includes a notification determination unit 421 as a notification determination unit and a switching determination unit 422 as a switching determination unit.

The calculation unit 411 calculates the amount of ions contained in the raw water supplied to the ion exchange resins 121a and 121b. Specifically, the amount of ions contained in the supply water is calculated based on the detected value of the discharge path conductivity meter 251 and the detected value of the raw water flow meter 111. The ions adsorbed on the ion exchange resin 211 are desorbed from the ion exchange resin 211 when the regenerated water is introduced into the ion separator 21 by the acid supplier 22 or the alkali supplier 23, and discharged to the discharge path 25. Therefore, the detected value of the discharge path conductivity meter 251 corresponds to the ion concentration contained in the collected water, and can be regarded as being substantially equal to the ion concentration contained in the supply water. Therefore, the product of the detected value of the discharge path conductivity meter 251 and the detected value of the raw water flow meter 111 corresponding to the amount of supplied water corresponds to the amount of ions contained in the supplied water.

  The notification determination unit 421 determines whether to activate the monitor 31 and the speaker 32. Specifically, based on the result of calculation by the calculation unit 411, the amount of ions contained in the supply water has reached a first predetermined ratio (for example, 80%) of the ion exchange capacity of the ion exchange resin 121a or 121b. In the event of a failure, the monitor 31 and the speaker 32 are activated.

  The activated monitor 31 and speaker 32 output predetermined images and sounds, respectively, and notify instruction information for instructing the regeneration of the ion exchange resin 121. The notification mode is not particularly limited. For example, the monitor 31 may display a message “Please regenerate the ion exchange resin” and the speaker 32 may output the sound. Alternatively, the speaker 32 may output a constant alarm sound.

  The switching determination unit 422 determines whether to switch the ion exchanger through which raw water passes. Specifically, based on the result of calculation by the calculation unit 411, the amount of ions contained in the supply water has reached a second predetermined ratio (for example, 85%) of the ion exchange capacity of the ion exchange resin 121a or 121b. When the raw water supply valves 113a and 113b and the raw water discharge valves 114a and 114b are changed, the ion exchanger through which the raw water passes is switched.

  For example, when the ion exchanger 12a performs the desalting process of raw water, only the raw water supply valve 113a and the raw water discharge valve 114a are open among the raw water supply valves 113a and 113b and the raw water discharge valves 114a and 114b. Here, when it is determined that the amount of ions contained in the supply water has reached the second predetermined ratio (for example, 85%) of the ion exchange capacity of the ion exchange resin 121a or 121b, the raw water supply valve 113a and the raw water discharge are determined. The valve 114a is closed and the raw water supply valve 113b and the raw water discharge valve 114b are opened, thereby switching to the ion exchanger 12b through which the raw water passes.

The operation of the water treatment system 1 will be described with reference to FIG.
First, raw water desalting is started (ST1). Specifically, the raw water supply valves 113a to 113b, the raw water discharge valves 114a to 114b, the acid supply valve 243, and the alkali supply valve 244 are all closed, and then the raw water supply valve 113a is opened so that the raw water is supplied to the condenser 80. To the ion exchange resin 121a accommodated in the ion exchanger 12a through the raw water channels 11 and 11a. Among the ions contained in the raw water introduced into the ion exchange resin 121a, the cation is a hydrogen ion adsorbed on the cation exchange resin of the ion exchange resin 121a, and the anion is an anion exchange resin of the ion exchange resin 121a. Each is exchanged with the adsorbed hydroxide ion. The discharged raw water passes through the ion exchanger 12a and flows again into the boiler 90 in the raw water flow path 11.

Simultaneously with the start of the desalination treatment of the raw water, detection of the amount of ions contained in the feed water is started (ST2). Specifically, by opening the collection valve 261, a part of the supply water flows into the branch path 26 and is introduced into the ion exchange resin 211 accommodated in the ion separator 21. Ions contained in the collected water introduced into the ion exchange resin 211 are adsorbed onto the ion exchange resin 211 by the ion exchange resin 211, and then recycled water is introduced into the ion separator 21 through the acid supplier 22 or the alkali supplier 23. As a result, it is desorbed from the ion exchange resin 211 and discharged into the discharge path 25. The discharge path conductivity meter 251 measures the concentration of the cation or anion contained in the reclaimed water released into the discharge path 25, and obtains the cation concentration and the anion concentration contained in the collected water . Then, the calculation unit 411 calculates the cation amount and the anion amount contained in the supply water based on the detection value of the discharge path conductivity meter 251 and the detection value of the raw water flow meter 111.

  Subsequently, the notification determination unit 421 determines whether or not the amount of cation contained in the supplied water has reached a first predetermined ratio of the exchange capacity of the cation exchange resin constituting the ion exchange resin 121a (ST3). . If this determination is “NO”, the process returns to ST2, and the detection of the amount of ions in the supply water is continued.

  On the other hand, if the determination in ST3 is “YES”, the notification determination unit 421 activates the monitor 31 and the speaker 32, and the monitor 31 and the speaker 32 notify instruction information for instructing the regeneration of the ion exchange resin 121a. (ST4). Subsequently, the process proceeds to ST5.

  In ST5, the switching determination unit 422 determines whether or not the amount of cation contained in the supplied water has reached a second predetermined ratio of the exchange capacity of the cation exchange resin constituting the ion exchange resin 121a. If this determination is “NO”, the process ends.

  On the other hand, when the determination in ST5 is “YES”, the switching determination unit 422 switches the ion exchanger through which the raw water passes (ST6), and then ends. Specifically, the switching determination unit 422 closes the raw water supply valve 113a and the raw water discharge valve 114a, and opens the raw water supply valve 113b and the raw water discharge valve 114b. Thereby, the flow path through which the raw water flows switches from the raw water flow path 11a to the raw water flow path 11b.

According to this embodiment, the following effects can be obtained.
(A) Since the detection device 20 is provided, the amount of ions contained in the feed water supplied to the ion exchange resins 121a and 121b is detected, so the remaining amount of the ion exchange capacity of the ion exchange resins 121a and 121b is determined. I can grasp. For this reason, if the lower limit of the ion exchange capacity that can prevent leakage of ions with a desired safety factor is set, taking into consideration the possibility of occurrence of inflow of high concentration water, etc. Until the remaining value of the ion exchange capacity to be reached reaches the lower limit value, ions to be exchanged can be adsorbed to the ion exchange resins 121a and 121b without excess or deficiency.
Therefore, generation | occurrence | production of a scale, sludge, corrosion, etc. can fully be suppressed, and the reproduction | regeneration frequency of an ion exchange resin can be suppressed.

(B) Since the branch path 26 is provided in the raw water flow path 11 and the discharge path conductivity meter 251 and the raw water flow meter 111 are provided in the detection device 20, the ion concentration contained in the collected water by the discharge path conductivity meter 251 is The amount of the supplied water is detected by the raw water flow meter 111. For this reason, only by calculating the product of these detection values, the amount of ions contained in the supplied water is detected, so that the remaining value of the ion exchange capacity of the ion exchange resins 121a and 121b can be easily grasped.
Therefore, it is possible to easily suppress the occurrence of scale, sludge, corrosion, etc. and to suppress the frequency of regeneration of the ion exchange resin.

(C) Since the ion exchange resin 211 is used for the detection device 20 that investigates a small amount of collected water, a small amount of the ion exchange resin 211 is used, so that the cost burden on the user can be reduced.
Therefore, even if the ion exchange resin 211 is used in the detection device 20, the occurrence of scale, sludge, corrosion, etc. can be sufficiently suppressed and the regeneration frequency of the ion exchange resin can be suppressed easily and inexpensively.

  (D) Since the water treatment system 1 is further provided with the notification unit 30 and the arithmetic unit 40 including the control unit 42, it seems that the lower limit value of the ion exchange capacity that can prevent the leakage of ions with a desired safety factor In such a case, since the instruction information is notified by the notification unit 30, it is possible to suppress the loss of the timing for regenerating the ion exchange resins 121a and 121b.

  (E) Since the raw water supply valves 113a and 113b and the raw water discharge valves 114a and 114b are provided in the desalting apparatus 10 and the switching determination unit 422 is provided in the control unit 42, the raw water supply valves 113a and 113b are obtained based on the detection value by the detection device 20. For example, when the amount of ions contained in the supply water has reached a second predetermined ratio of the ion exchange capacity of the ion exchange resin 121a to be used, the switching determination unit 422 switches the raw water supply valve 113a and the raw water discharge valve 114a. In addition to closing, control is performed to open the raw water supply valve 113b and the raw water discharge valve 114b. As a result, the ion exchanger through which water passes is switched, and water flows to the ion exchanger 12b in which sufficient ion exchange capacity remains, so that ion leakage can be more reliably suppressed.

  It should be noted that the present invention is not limited to the above-described embodiment, and modifications, improvements, etc. within a scope that can achieve the object of the present invention are included in the present invention.

It is a block diagram of the water treatment system concerning one embodiment of the present invention. It is a block diagram of the control means concerning the embodiment. It is a flowchart of the water treatment system which concerns on the said embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water treatment system 10 Desalination apparatus 11, 11a, 11b Raw water flow path (flow path)
12a, 12b Ion exchanger (ion exchange means)
20 Detection device (detection means)
21 Ion separator (Ion separation means)
26 Branch (collecting means)
30 Notification section (notification means)
42 Control unit (control means)
111 Raw water flow meter (Supply water detection means)
113a, 113b Raw water supply valve (switching means)
114a, 114b Raw water discharge valve (switching means)
121a, 121b Ion exchange resin 211 Ion exchange resin 251 Discharge path conductivity meter (collected water detection means, ion concentration detection means)
261 Collection valve (collection means)
421 Notification determination unit (notification determination means)
422 switching determination unit (switching determination means)

Claims (3)

A flow path through which water flows, an ion exchange means provided in the middle of the flow path and containing an ion exchange resin, a detection means for detecting the amount of ions contained in the water supplied to the ion exchange resin, A water treatment system comprising:
The flow path is
A collecting means for collecting collected water from the supply water provided upstream of the ion exchange means in the flow path, wherein the flow path branches upstream of the ion exchange means, and halfway along the branch path A sampling means having a sampling valve provided in the
The detection means includes
A collected water detection means for detecting an ion concentration contained in the collected water collected by the collection means, wherein an ion exchange resin having a cation exchange resin and an anion exchange resin connected to the branch path is accommodated. And ion separation means for introducing the collected water collected by the collection means into the ion exchange resin and adsorbing ions contained in the collected water to the ion exchange resin, and ions contained in the collected water. Regenerated water supply means comprising an acid supply device and an alkali supply device for supplying regenerated water to the ion exchange resin adsorbed with water, and the regenerated water is introduced into the ion exchange resin by the regenerated water supply device, so that the regenerated water becomes the ions. ions adsorbed on the exchange resin is desorbed, and the recycled water introduced into the ion exchange resin by the recycled water supply means A conductivity meter for measuring the ion concentration contained in the collected water taken by the sampling means in the amount, and the collected water detecting means having,
A water treatment system comprising: a supply water amount detection means for detecting the amount of the supply water. The water treatment system according to claim 1,
Informing means for informing instruction information for instructing regeneration of the ion exchange resin accommodated in the ion exchange means;
A notification that activates the notification means when the amount of ions contained in the supply water obtained based on the detection value by the detection means has reached a first predetermined ratio of the ion exchange capacity of the ion exchange resin. A water treatment system, further comprising: a control unit having a determination unit. The water treatment system according to claim 2,
A plurality of the ion exchange means are provided in parallel in the middle of the flow path,
The water treatment system further comprises switching means for switching the ion exchange means through which the water passes,
The control means has a second predetermined ratio in which the amount of ions contained in the supply water obtained based on the detection value by the detection means is a ratio of the first predetermined ratio or more of the ion exchange capacity of the ion exchange resin. The water treatment system further includes a switching determination unit that activates the switching unit when it has reached.

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