JP2005273210A - Wash water generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wash water generator capable of always supplying wash water having the sterilizing effect. <P>SOLUTION: In a water treatment system, electrolytic treatment is applied to water introduced to a storage tank 2 by an electrolytic cell 5 to be supplied to a toilet bowl 5. When an inflow condition to the toilet bowl 17 is realized, when the residual chlorine concentration of the water of applying the electrolytic treatment by the electrolytic cell 5 is a predetermined value or less, the water is supplied to the toilet bowl 17 after applying the electrolytic treatment again by being returned again to the electrolytic cell 5 by a return pump 12 via a return pipe 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cleaning water generating device, and in particular, a cleaning water generating device that immerses an electrode pair in water to be treated and converts the water to be treated into electrolytic water containing a desired component by an electrolytic reaction using the electrode pair. About.

Residual chlorine has been used for sterilization and deodorization of tap water, pool water, and bath water in public baths. Such residual chlorine has also been used for washing toilet bowls as disclosed in Patent Document 1. Specifically, Patent Document 1 includes an electrolytic tank for generating sterilized water containing residual chlorine by electrolyzing chlorine ion-containing water, and supplies the sterilized water generated in the electrolytic tank to a toilet bowl. A sterilizing water supply unit is disclosed. Patent Document 2 also mentions a liquid containing residual chlorine as a liquid containing a sterilizing substance or ions that are used for toilet cleaning.
JP-A-9-144102 JP 2000-80700 A

  However, the sterilized water obtained by electrolysis has a characteristic that, when left for a while, hypochlorous acid contained in the sterilized water is decomposed, whereby the sterilizing effect is reduced or disappears. .

  Therefore, in the conventional washing water generating apparatus for supplying such sterilized water to the toilet as washing water, the sterilized water obtained by electrolysis as described above is used in a time zone where the toilet is used less frequently. In the case where the sterilized water is left without being used, when the left sterilized water is used, there is a problem that the sterilizing effect originally expected for the sterilized water may not be obtained.

  The present invention has been conceived in view of such circumstances, and an object of the present invention is to provide a cleaning water generating device that can always supply cleaning water having a sterilizing effect.

  A cleaning water generating device according to an aspect of the present invention is a cleaning water generating device that generates cleaning water to be supplied to a toilet, and is an electrolytic unit that is introduced with chlorine ion-containing water and includes at least a pair of electrodes. Washing water supply means for supplying the water to be treated that has been subjected to electrolytic treatment in the electrolysis means to the toilet as wash water, and water to be treated that has been subjected to electrolysis treatment in the electrolysis means to the toilet by the wash water supply means Before being supplied, the electrolysis means or a return means for returning to the upstream side of the electrolysis means in the flow path of the water to be treated is provided.

  According to one aspect of the present invention, in the washing water generating apparatus, the water to be treated that has been subjected to electrolytic treatment to be supplied to the toilet bowl can be returned to the electrolytic means again by the return means and subjected to electrolytic treatment. .

  Further, the cleaning water generating apparatus according to the present invention is a case where a predetermined condition is established with the residual chlorine concentration detecting means for detecting the residual chlorine concentration of the water to be treated that has been subjected to electrolytic treatment in the electrolytic means. And when the detection output of the residual chlorine concentration detection means exceeds a predetermined concentration, the cleaning water supply means further comprises a control means for supplying water to be treated which has been subjected to the electrolytic treatment to the toilet, When the predetermined condition is satisfied and the detection output of the residual chlorine concentration detecting means is equal to or lower than the predetermined concentration, the control means is water to be treated in which the return means is subjected to the electrolytic treatment. Is returned to the upstream side of the electrolysis means in the flow path of the electrolysis means or the water to be treated, the electrolysis means is electrolyzed, and it is determined that the detection output of the residual chlorine concentration detection means exceeds a predetermined concentration Do , It is preferable to supply the water to be treated the has been subjected to electrolytic treatment in the cleaning water supply means to the toilet bowl.

  Thus, in the washing water generating apparatus, the second electrolytic treatment using the return means for the treated water that has been subjected to the electrolytic treatment to be supplied to the toilet bowl is a predetermined related to the supply of the treated water to the toilet bowl. This is surely performed when the above condition is satisfied.

  Further, in the cleaning water generating apparatus according to the present invention, the control means refers to the detection output of the residual chlorine concentration detection means at regular intervals, and when the detection output is a predetermined concentration or less, It is preferable that the water to be treated which has been subjected to the electrolytic treatment is returned to the return means upstream of the electrolysis means in the electrolysis means or the flow path of the water to be treated, so that the electrolysis means performs electrolysis.

  As a result, in the washing water generating apparatus, the treatment for the residual chlorine concentration of the water to be treated that has been subjected to the electrolytic treatment to be supplied to the toilet bowl is performed at regular intervals. .

  In the cleaning water generating apparatus according to the present invention, it is preferable that the returning means returns the treated water that has been subjected to electrolytic treatment in the electrolytic means directly to the electrolytic means.

  Thereby, in the washing water generating apparatus, the second electrolytic treatment using the returning means is efficiently performed on the water to be treated which has been subjected to the electrolytic treatment to be supplied to the toilet.

  Further, the cleaning water generating apparatus according to the present invention includes raw water storage means for storing raw water for cleaning water such as city water or ground water, and introduction means for introducing the raw cleaning water stored in the raw water storage means to the electrolysis means. It is preferable that the returning means returns the treated water that has been subjected to electrolytic treatment in the electrolyzing means to the raw water storage means.

  Thereby, in the washing water generating apparatus, the water to be treated that has been subjected to the electrolytic treatment can also be stored in the raw water storage means.

  In the washing water generating apparatus according to the present invention, it is preferable that the residual chlorine concentration detecting means detects a residual chlorine concentration of water in the raw water storage means.

  Thereby, in a washing water production | generation apparatus, it can be judged whether the water in a raw | natural water storage means can be utilized as washing water.

  A washing water generating apparatus according to another aspect of the present invention is a washing water generating apparatus that generates washing water to be supplied to a toilet, and is an electrolytic means that is introduced with chlorine ion-containing water and includes at least a pair of electrodes. A treated water storage means for storing treated water that has been subjected to electrolytic treatment in the electrolysis means; and a residual chlorine concentration detecting means for detecting a residual chlorine concentration of treated water stored in the treated water storage means; When the detection output of the residual chlorine concentration detecting means is equal to or lower than a predetermined concentration, the electrolytic control is performed such that the electrolytic treatment is performed on the treated water stored in the treated water storing means by the electrolytic means. Means.

  According to another aspect of the present invention, in the cleaning water generator, the residual chlorine concentration is predetermined for the treated water that has been subjected to electrolytic treatment and stored in the treated water storage means for being supplied to the toilet. Until the concentration is exceeded, the electrolytic treatment can be performed by the electrolytic means.

  Further, in the cleaning water generating apparatus according to the present invention, the electrolysis unit is installed outside the treated water storage unit, and has a cylindrical housing and at least one electrode pair attached to the housing. It is preferable to further include a pipe for circulating the treated water stored in the treated water storage means between the treated water storage means and the electrolysis means.

  Thereby, an electrolysis means can be inserted in the middle of piping as a part of piping.

  According to a certain aspect of the present invention, in the cleaning water generating apparatus, the water to be treated that has been subjected to electrolytic treatment to be supplied to the toilet can be returned to the electrolytic means again by the return means and subjected to electrolytic treatment. The sterilizing effect of the water to be treated whose sterilizing effect is lowered by being left after being electrolyzed can be enhanced by performing electrolytic treatment again. Therefore, in the cleaning water generator, the supplied cleaning water can always have a sterilizing effect.

  Further, according to the present invention, the electrolytic treatment for the water to be treated is performed again when the predetermined condition relating to the supply of the water to be treated to the toilet is satisfied, so the washing water generating device Therefore, the supplied cleaning water has a sterilizing effect more reliably.

  Further, according to the present invention, in the cleaning water generating device, the processing for causing the residual chlorine concentration of the water to be treated supplied to the toilet bowl to exceed a predetermined value is performed at regular intervals. More reliably, the supplied wash water has a sterilizing effect.

  Further, according to the present invention, in the cleaning water generating device, the raw water storage means can store the treated water that has been subjected to the electrolytic treatment, so that the ability to supply the cleaning water is improved.

  According to another aspect of the present invention, in the cleaning water generating apparatus, the water to be treated that has been subjected to electrolytic treatment and stored in the water to be treated storing means to be supplied to the toilet bowl has a residual chlorine concentration of a predetermined concentration. Since the electrolytic treatment is performed until it exceeds, the sterilizing effect of the water to be treated whose sterilizing effect is lowered by being left after being electrolyzed can be enhanced by performing the electrolytic treatment again. Therefore, in the cleaning water generator, the supplied cleaning water can always have a sterilizing effect.

  In addition, according to the present invention, the electrolytic means can be inserted into the piping, so that the space for the washing water generating device can be saved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, unless otherwise specified, the same reference numerals in the respective drawings assume the same action, and description thereof will not be repeated.

[First Embodiment]
In FIG. 1, the structure of the water treatment system containing 1st Embodiment of the wash water production | generation apparatus of this invention is shown typically.

  Referring to FIG. 1, the water treatment system according to the present embodiment is for electrolyzing introduced water to obtain washing water having a sterilizing effect and supplying the washing water to toilet bowl 17. In the water treatment system of the present embodiment, first, water such as city water or groundwater is introduced into the storage tank 2 through the pipe 1. The water introduced into the storage tank 2 is sent to the electrolytic tank 5 as treated water by the pump 4 via the pipe 3.

  The electrolytic cell 5 is provided with electrodes 6 and 7 constituting an electrode pair, the electrode 6 is a cathode electrode, and the electrode 7 is an anode electrode. The electrodes 6 and 7 are supplied with DC power by a power source 8. Thereby, the water introduced into the electrolytic cell 5 is electrolyzed (electrolyzed). By this electrolysis, the water to be treated containing chlorine ions is made electrolyzed water containing hypochlorous acid.

  In the present embodiment, it is described that the electrolytic cell 5 is provided with only a pair of electrodes 6 and 7, but the present invention is not limited to this. The tank 5 may be provided with a plurality of electrode pairs.

  The water to be treated which has been made electrolyzed in the electrolyzer 5 is sent to the residual chlorine concentration measuring unit 10 via the pipe 9. The residual chlorine concentration measuring unit 10 is provided with a residual chlorine concentration sensor 10A for detecting the residual chlorine concentration of the solution.

  The water to be treated introduced into the residual chlorine concentration measuring unit 10 is introduced into the toilet bowl 17 as washing water through the pipe 16, and the washing water is introduced into the toilet bowl 17 by a valve 15 provided on the pipe 16. Be controlled. In addition, a return pipe 14 is connected to the residual chlorine concentration measurement unit 10 in addition to the pipe 16, and the water to be treated introduced into the residual chlorine concentration measurement unit 10 passes through the return pipe 14 to the electrolytic cell. 5 can be returned. The return of the water to be treated introduced into the residual chlorine concentration measuring unit 10 to the electrolytic cell 5 is controlled by a return pump 12 and valves 11 and 13 provided on a return pipe 14.

  In the present embodiment, it is described that the water to be treated in the residual chlorine concentration measuring unit 10 is returned on the pipe 3 and immediately before the electrolytic cell 5 by the return pipe 14. The invention is not limited to this. The return pipe 14 may be connected to the electrolytic cell 5 and configured to return the treated water in the residual chlorine concentration measuring unit 10 directly into the electrolytic cell 5, and as a result, the electrolytic cell 5. It may be configured to return between the pump 4 and the storage tank 2 as long as it is returned so as to be introduced into the tank.

  In the water treatment system of the present embodiment, operations of the pump 4, the power supply 8, the residual chlorine concentration measuring unit 10, the return pump 12, and the valves 11, 13, and 15 are controlled by the control panel 25. Note that the valves 11, 13, and 15 are in a closed state unless they are in an open state.

  FIG. 2 is a flowchart of processing executed by the control panel 25.

  First, in step S1 (hereinafter, “step” is omitted), the control panel 25 determines whether or not a condition (inflow condition) for allowing flush water to flow into the toilet bowl 17 is satisfied. Examples of the “inflow condition” mentioned here include an operation of a flash button (a button for washing the toilet bowl) provided in the toilet bowl 17. If it is determined that the inflow condition is satisfied, the process proceeds to S2. If it is determined that the inflow condition is not satisfied, the process proceeds to S12.

  In S2, electrolysis is performed in the electrolytic cell 5 by causing the power source 8 to supply power to the electrodes 6 and 7.

  Then, in S3, the residual chlorine concentration detected by the residual chlorine concentration measuring unit 10 is checked, and it is determined whether or not the residual chlorine concentration is 1 mg / L or less. . Note that the water to be treated introduced into the electrolytic cell 5 flows into the residual chlorine concentration measuring unit 10 even if no power is applied. If it is determined in S3 that the residual chlorine concentration is 1 mg / L or less, the process proceeds to S4, and if not, the process proceeds to S6.

  In the present embodiment, the criterion for determining the residual chlorine concentration in S3 is 1 mg / L, but the present invention is not limited to this. If it is a value required as flush water for the toilet bowl 17, the determination criterion may be changed as appropriate.

  In S4, the control panel 25 operates the return pump 12, and in S5, the valves 11 and 13 are opened, and the process returns to S3. As a result, the water to be treated introduced into the residual chlorine concentration measuring unit 10 is returned to the electrolytic cell 5.

  On the other hand, in S6, the control panel 25 drives the pump 4 to introduce the water to be treated from the storage tank 2 to the electrolytic tank 5, and in S7, the valve 15 is opened to perform electrolytic treatment in the electrolytic tank 5. The treated water is supplied to the toilet bowl 17 as washing water.

  Then, the control panel 25 determines whether or not a predetermined inflow time of water into the toilet bowl 17 has elapsed since the flush water was supplied to the toilet bowl 17 at S8 in S8. Then, the process proceeds to S9.

  In S9, the control panel 25 terminates the electrolysis in the electrolytic cell 5 by stopping the power supply 8 from supplying power to the electrodes 6 and 7, and then stops the pump 4 in S10 and closes the valve 15 in S11. After returning to the state, the process returns to S1.

  Further, the control panel 25 determines whether or not a predetermined time (for example, 1 hour) has passed since the last processing of S2 (electrolysis in the electrolytic cell 5) in S12, and the predetermined time. If it is determined that has elapsed, the process proceeds to S3. If it is determined that the period has not yet elapsed, the process returns to S1.

  As described above, in the present embodiment, in the water treatment system, the water to be treated that has been subjected to the electrolytic treatment in the electrolytic bath 5 to be supplied to the toilet bowl 17 is the residual chlorine when the inflow condition is satisfied. If the concentration is less than or equal to a predetermined value, it is returned to the electrolytic cell 5 again by the return pump 12 (return means 9) via the return pipe 14, and again subjected to electrolytic treatment, and then supplied to the toilet bowl 17.

[Second Embodiment]
FIG. 3 is a diagram schematically showing a configuration of a water treatment system including the second embodiment of the cleaning water generating apparatus of the present invention.

  In the water treatment system of the present embodiment, first, water such as city water and groundwater is introduced into the storage tank 2 through the pipe 1. The water introduced into the storage tank 2 is sent to the electrolytic tank 5 as treated water by the pump 4 via the pipe 3. The water to be treated that has been subjected to the electrolytic treatment in the electrolytic bath 5 is supplied to the toilet 17 through the pipe 16 as cleaning water by opening the valve 15.

  In the water treatment system of the present embodiment, a residual chlorine concentration sensor 20 for detecting the residual chlorine concentration of water in the storage tank 2 is installed in the storage tank 2. The operation of the power supply 8 for supplying DC power to the pump 4, electrodes 6, 7, the residual chlorine concentration sensor 20, and the valves 15, 21 is controlled by the control panel 26.

  In the water treatment system of the present embodiment, the control panel 26 checks the detection output of the residual chlorine concentration sensor 20 at regular time intervals or constantly when the inflow conditions in the first embodiment are satisfied. Then, it is determined whether or not the residual chlorine concentration of the water in the storage tank 2 is equal to or lower than a predetermined concentration (for example, 1 mg / L). When it is determined that the concentration is lower than the predetermined concentration, the control panel 25 opens the valve 21 with the valve 15 closed, operates the pump 4, and supplies power to the power source 8 to the electrodes 6 and 7. Supply. As a result, the water to be treated which has been subjected to electrolytic treatment once in the electrolytic bath 5 and left in the electrolytic bath 5 and the storage bath 2 is subjected to electrolytic treatment in the electrolytic bath 5 again.

[Third Embodiment]
FIG. 4 is a diagram schematically showing a configuration of a water treatment system including the third embodiment of the cleaning water generating apparatus of the present invention.

  In the water treatment system of the present embodiment, water such as city water or groundwater is introduced into the storage tank 34 through the pipe 51 by opening the valve 52. The water introduced into the washing water tank 34 is supplied to the toilet bowl 35 via the pipe 55 by opening the valve 54. The water in the cleaning water tank 34 is sent to the electrolysis unit 40 through the pipe 56 by the circulation pump 32 by opening the valve 53, and then returned to the cleaning water tank 34 again. For example, the valve 54 is opened when the inflow condition described in the first embodiment is satisfied. The cleaning water tank 34 is provided with a residual chlorine concentration sensor 33. The electrolysis unit 40 is connected to a part of the pipe 56.

  The electrolysis unit 40 is provided with at least one electrode pair, and the electrode pair is supplied with electric power from the power supply 31 and thereby flows in the pipe 56 and electrolyzes water passing through the electrolysis unit 40. Apply processing. That is, the water introduced through the pipe 51 and the water subjected to the electrolytic treatment by the electrolysis unit 40 are stored in the cleaning water tank 34.

  FIG. 5 is a diagram schematically showing the structure of the electrolysis unit 40. The electrolysis unit 40 includes a case member 41 having a cylindrical shape and made of an insulating material, and plate-like electrodes 42 to 48. The electrodes 42 to 48 are plate-shaped, and are supplied with power from the power supply 48 so as to have different polarities. Thereby, when power is supplied from the power supply 48 in the case member 41, the electrodes 42 to 48 are alternately arranged with the anode electrodes and the cathode electrodes. The main surfaces of the electrodes 42 to 48 are arranged along the direction in which water flows in the pipe 56. Thereby, it is avoided that the electrodes 42-48 inhibit the flow of the water in the piping 56. FIG.

  Referring to FIG. 4 again, in the water treatment system of the present embodiment, the operation of residual chlorine concentration sensor 33, circulation pump 32, power supply 31, and valves 52 to 54 is controlled by control panel 30.

  FIG. 6 is a flowchart of processing executed by the control panel 30.

  The control panel 30 supplies water to the washing water tank 34 through the pipe 51 by opening the valve 52 in SA1. The control panel 30 constantly detects the water level in the cleaning water tank 34 by a well-known technique (or every specific time), and if necessary, the valve 52 is appropriately selected based on the detection result. Is opened to supply water to the cleaning water tank 34.

  Next, at SA2, the control panel 30 checks the detection output of the residual chlorine concentration sensor 33, so that the residual chlorine concentration of the water in the wash water tank 34 is a certain value (for example, 1 mg / L) or less. If NO, the process proceeds to SA3. If it is determined that the value exceeds the predetermined value, the process proceeds to SA5.

  In SA3, the control panel 30 drives the circulation pump 32, and in SA4, causes the power supply 31 to supply power to the electrodes 42 to 48, thereby causing the electrolysis unit 40 to perform electrolysis, and returns the process to SA2.

  On the other hand, at SA5, the control panel 30 stops the driving of the circulation pump 32, and at SA6, the power supply 31 stops the supply of power to the electrodes 42 to 48, thereby stopping the electrolysis process by the electrolysis unit 40. Return the process to SA2.

  By executing the processing shown in FIG. 6, in the water treatment system of the present embodiment, the residual chlorine concentration is always constant in the wash water tank 34 that stores the water supplied as wash water to the toilet bowl 35. The value is exceeded.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Moreover, each embodiment can be implemented independently or in combination as much as possible.

It is a figure which shows typically the structure of the water treatment system containing 1st Embodiment of the washing water production | generation apparatus of this invention. It is a flowchart of the process which the control panel of FIG. 1 performs. It is a figure which shows typically the structure of the water treatment system containing 2nd Embodiment of the wash water production | generation apparatus of this invention. It is a figure which shows typically the structure of the water treatment system containing 3rd Embodiment of the wash water production | generation apparatus of this invention. It is a figure which shows the structure of the electrolysis unit of FIG. 4 typically. It is a flowchart of the process which the control panel of FIG. 4 performs.

Explanation of symbols

  1, 3, 9, 16, 51, 55, 56 Piping, 2 Reservoir, 4 Pump, 5 Electrolyzer, 6, 7 Electrode, 8 Power supply, 10 Residual chlorine concentration measuring unit, 10A, 20, 33 Residual chlorine concentration sensor 11, 13, 15, 52 to 54 Valve, 12 Return pump, 14 Return pipe, 17 Toilet bowl, 25, 30 Control panel, 31 Power supply, 32 Circulation pump, 34 Washing water tank, 40 Electrolysis unit, 41 Case member, 42 ~ 48 electrodes.

Claims (8)

A washing water generating device for generating washing water to be supplied to a toilet,
Electrolytic means introduced with chlorine ion-containing water and provided with at least one pair of electrodes;
Washing water supply means for supplying the water to be treated that has been subjected to electrolytic treatment in the electrolysis means to the toilet as wash water;
The treated water that has been subjected to electrolytic treatment in the electrolyzing means is returned upstream of the electrolyzing means in the electrolytic means or the flow path of the treated water before being supplied to the toilet by the washing water supply means. A cleaning water generating device, comprising: a returning means. A residual chlorine concentration detecting means for detecting a residual chlorine concentration of water to be treated which has been subjected to electrolytic treatment in the electrolytic means;
If the predetermined condition is satisfied and the detection output of the residual chlorine concentration detecting means exceeds a predetermined concentration, the water to be treated that has undergone the electrolytic treatment is supplied to the toilet bowl And a control means for supplying,
In the case where the predetermined condition is satisfied and the detection output of the residual chlorine concentration detecting means is equal to or lower than a predetermined concentration, the control means is to be processed in which the return means is subjected to the electrolytic treatment. When water is returned to the upstream side of the electrolysis means in the electrolysis means or the water to be treated, the electrolysis means is electrolyzed, and the detection output of the residual chlorine concentration detection means exceeds a predetermined concentration. The washing water generating apparatus according to claim 1, wherein, when judged, the washing water supply means supplies the water to be treated that has undergone the electrolytic treatment to a toilet.   The control means refers to the detection output of the residual chlorine concentration detection means at regular intervals, and when the detection output is below a predetermined concentration, the water to be treated that has undergone the electrolytic treatment on the return means. The washing water generating apparatus according to claim 2, wherein the electrolyzing unit or the water to be treated is returned to the upstream side of the electrolyzing unit to cause the electrolyzing unit to perform electrolysis.   The washing water generating device according to any one of claims 1 to 3, wherein the returning means returns the treated water that has been subjected to electrolytic treatment in the electrolytic means directly to the electrolytic means. Raw water storage means for storing clean water raw water such as city water or ground water,
An introduction means for introducing the washing water raw water stored in the raw water storage means into the electrolysis means,
The washing water generating device according to any one of claims 1 to 4, wherein the returning means returns the water to be treated that has been subjected to electrolytic treatment in the electrolyzing means to the raw water storage means.   The washing water generating apparatus according to claim 5, wherein the residual chlorine concentration detection means detects a residual chlorine concentration of water in the raw water storage means. A washing water generating device for generating washing water to be supplied to a toilet,
Electrolytic means introduced with chlorine ion-containing water and provided with at least one pair of electrodes;
To-be-treated water storage means for storing the to-be-treated water subjected to electrolytic treatment in the electrolysis means,
A residual chlorine concentration detecting means for detecting a residual chlorine concentration of the treated water stored in the treated water storage means;
When the detection output of the residual chlorine concentration detection means is equal to or lower than a predetermined concentration, the electrolysis control means for subjecting the treated water stored in the treated water storage means to electrolytic treatment by the electrolysis means A cleaning water generating device comprising: The electrolysis means is installed outside the treated water storage means, and includes a casing having a cylindrical shape and at least one electrode pair attached to the casing.
The washing water generating apparatus according to claim 7, further comprising a pipe for circulating the treated water stored in the treated water storage means between the treated water storage means and the electrolysis means.

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