JP5499843B2 - Separation membrane element selection device, separation membrane element selection method - Google Patents

Description

  The present invention relates to a technique for selecting a separation membrane element to be reused in a water treatment apparatus.

In a factory that handles water, a water treatment apparatus using a separation membrane that filters water is used. FIG. 9 is a diagram showing an example of a separation membrane element 1 having a spiral RO membrane (Reverse Osmosis Membrane) as such a separation membrane. The separation membrane element 1 has a structure in which a separation membrane 2 is installed in a spiral shape on a center pipe 5 for collecting permeated water, and the separation membrane is handled in such units. When water is supplied to the separation membrane element 1 from a location indicated by symbol a, the permeated water that has permeated through the separation membrane 2 is collected by the center pipe 5 and taken out. The concentrated water that has not permeated the separation membrane 2 passes between the membranes of the spiral separation membrane 2 and is discharged from the location indicated by the symbol b.
FIG. 10 is a view showing a filtration apparatus using such a separation membrane element 1. Here, a vessel (pressure vessel) 7 is filled with four separation membrane elements 1 in series. Each separation membrane element 1 is partitioned in a vessel 7 by a brine seal 3 and connected in series by a connector 4. When the supply water is supplied to the vessel 7, the permeated water that has sequentially passed through the plurality of RO membranes 2 is taken out from the center pipe 5. The concentrated water that has not permeated the last separation membrane element 1 is drained from the concentrated water outlet 6. Patent Document 1 discloses an RFID (Radio Frequency IDentification) in which an operation time, a cleaning history, performance data, and the like of a separation membrane are stored when a separation membrane element used in such a filtration device is washed and reused. A technique has been proposed in which the is attached to the separation membrane element and managed.

JP 2008-246285 A

  However, the technique described in Patent Document 1 manages the reuse of the separation membrane element 1 in a water treatment device of one factory, and the separation membrane element 1 is reused in a plurality of water treatment devices and factories having different uses. It is not intended to be used. Here, in order to use the resources of the separation membrane element 1 more effectively and efficiently, it is desirable that a plurality of water treatment apparatuses having different uses and the separation membrane element 1 used in a factory be interchanged with each other. For example, FIG. 11 is a diagram illustrating an example of a factory having a plurality of RO (Reverse Osmosis) apparatuses for water treatment used in different applications. As indicated by reference signs a to f, the RO device is used in various applications such as for cooling towers, for pure water (for pure water production), for wastewater collection, and for waste liquid concentration. Here, for example, the separation membrane element 1 used in the wastewater concentration water treatment apparatus is used in the water treatment apparatus for pure water in order to avoid the entry of foreign matters, etc. even after being washed. It is considered desirable to avoid using it. In addition, some factories may handle different substances such as metal, iron, electronic parts and food. At this time, for example, it is desirable to consider that the separation membrane element 1 used in a water treatment apparatus in a factory that handles metal is not used in a water treatment apparatus in a factory that handles food, even after being washed.

  The present invention has been made in view of such circumstances, and a separation membrane element selection apparatus and separation membrane element selection for efficiently and safely selecting separation membrane elements to be reused in a plurality of water treatment apparatuses having different uses. Provide a method.

  The present invention relates to a separation membrane element selection device for selecting separation membrane elements to be provided to a plurality of water treatment devices of different uses, and separation membrane identification information for identifying a plurality of separation membrane elements to be reused in the water treatment device And a separation membrane information storage unit for storing water treatment device identification information for identifying a water treatment device in which the separation membrane element is used, and a water treatment device to be provided as a separation membrane element to be reused Corresponding to the water treatment device identification information determined according to the water treatment device information storage unit storing the water treatment device identification information for identifying the water treatment device identification information stored in the water treatment device information storage unit And a separation membrane element selection unit that reads the separation membrane identification information that is attached and stored in the separation membrane information storage unit.

  Further, according to the present invention, in the water treatment device information storage unit, repelling components in the water treatment device to be provided with the separation membrane element and raw water-containing components in the raw water of the water treatment device are associated with the water treatment device identification information. The separation membrane element selection unit includes the repelling component and the contained component stored in the water treatment device information storage unit in association with the water treatment device identification information stored in the separation membrane information storage unit. In comparison, separation membrane identification information for identifying a separation membrane element in which the repelling component is not included in the contained component is read.

  Further, according to the present invention, the water treatment device information storage unit stores required performance indicating the degree of performance of the separation membrane element required in the water treatment device to which the separation membrane element is provided, and the separation membrane information storage unit Is stored in association with the separation membrane identification information, and the separation membrane element selection unit is stored in the water treatment device information storage unit. The required performance and the inspection result stored in the separation membrane information storage unit are compared, and separation membrane identification information associated with the inspection result corresponding to the required performance is read.

  Further, according to the present invention, the separation membrane information storage unit stores the inspection date on which the performance was inspected after the used separation membrane element was washed in association with the separation membrane identification information. When there are a plurality of separation membrane identification information stored in the separation membrane information storage unit, the elapsed time from the inspection date corresponding to the separation membrane identification information is calculated, and among the plurality of separation membrane identification information, the calculated The separation membrane identification information having a long elapsed time is read out.

  The present invention also provides separation membrane identification information for identifying a plurality of separation membrane elements that are reused in a plurality of water treatment devices for different uses, and a water treatment device identification for identifying a water treatment device in which the separation membrane elements are used. A separation membrane information storage unit in which information is stored in association with each other; a water treatment device information storage unit in which water treatment device identification information for identifying a water treatment device to be provided as a separation membrane element to be reused is stored; A separation membrane element selection method for a separation membrane element selection device comprising: a water treatment device identification information stored in a water treatment device information storage unit, and associated with predetermined water treatment device identification information The method includes a step of reading out separation membrane identification information stored in the separation membrane information storage unit.

  As described above, according to the present invention, separation membrane identification information for identifying a plurality of separation membrane elements to be reused in a plurality of water treatment devices for different uses, and a water treatment device using the separation membrane elements are provided. A separation membrane information storage unit in which water treatment device identification information to be identified is associated and stored, and water in which water treatment device identification information for identifying a water treatment device to be provided as a separation membrane element to be reused is stored A separation membrane element selecting device comprising a treatment device information storage unit is associated with the determined water treatment device identification information according to the water treatment device identification information stored in the water treatment device information storage unit, and the separation membrane Since the separation membrane identification information stored in the information storage unit is read out, separation membrane elements to be reused in multiple water treatment devices with different applications can be selected efficiently and safely. It becomes possible.

It is a block diagram which shows the structural example of the separation membrane element selection apparatus by one Embodiment of this invention. It is a figure which shows the example of data of the water treatment apparatus information memorize | stored in the water treatment apparatus information storage part by one Embodiment of this invention. It is a figure which shows the example of data of the separation membrane information memorize | stored in the separation membrane information storage part by one Embodiment of this invention. It is a flowchart which shows the operation example of the separation membrane element selection process by one Embodiment of this invention. It is a flowchart which shows the operation example of the separation membrane element selection process by one Embodiment of this invention. It is a flowchart which shows the operation example of the separation membrane element selection process by one Embodiment of this invention. It is a flowchart which shows the operation example of the warning process by one Embodiment of this invention. It is a figure which shows the some separation membrane element which the water treatment apparatus by one Embodiment of this invention has. It is a figure which shows the example of a separation membrane element. It is a figure which shows the example of the filtration apparatus using a separation membrane element. It is a figure which shows the example of the some water treatment apparatus which a factory has.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a separation membrane element selection device 10 according to the present embodiment. Here, a plurality of separation membrane use factories 20 (separation membrane use factories 20-1, separation membrane use factories) provided with water treatment devices (water treatment devices 21-1, water treatment devices 21-2,...) For different uses. It is assumed that the separation membrane element 1 used in 20-2,... Is washed in the separation membrane regeneration factory 30 and performance is inspected and stored. The re-inspection result in the separation membrane regeneration factory 30 is input to the input unit 11 of the separation membrane element selection device 10. Here, the route of information indicated by the alternate long and short dash line in FIG. 1 may be such that information is communicated via a connected network, or may be transmitted and input by a user or the like.
The separation membrane element selection device 10 is a computer device that manages information on the separation membrane element 1 stored in the separation membrane regeneration factory 30, and includes an input unit 11, a display unit 12, a water treatment device information storage unit 13, and the like. , A separation membrane information storage unit 14, a warning unit 15, a separation membrane element selection unit 16, and an inspection result update unit 17.

The input unit 11 is an input device such as a keyboard or a mouse, and receives data input from the user.
The display unit 12 is a display that displays information.
The water treatment device information storage unit 13 stores water treatment device information indicating the attributes of the water treatment device for each water treatment device to be provided with the reused separation membrane element 1.
FIG. 2 is a diagram illustrating a data example of water treatment device information stored in the water treatment device information storage unit 13. The water treatment device information includes information on customer name, raw water type, raw water-containing component, repellent component, desalination rate level, flux level, and recovery rate level. Here, for the sake of simplicity, an example will be described in which water treatment device information is stored for each customer assuming that one water treatment device is installed for one customer (factory). Water treatment device information may be associated with each water treatment device and stored.

  The customer name included in the water treatment apparatus information is water treatment apparatus identification information for identifying the customer who is the provision target of the separation membrane element 1. The raw water type indicates the type of raw water to be treated in the corresponding customer's water treatment device. For example, as the raw water species, types such as “drainage recovery”, “pure water”, “engineering water”, “water supply”, “well water”,. A raw water containing component shows the component which the raw water of a corresponding water treatment apparatus contains. For example, components such as “Ag”, “Ca”, “Na”, “TOC”, “Fe”,. A repelling component is a component repelled in a corresponding water treatment apparatus. That is, the separation membrane element used in the raw water containing the repellent component is selected so as not to be reused in the corresponding water treatment apparatus. For example, “Ag”, “As”, “Hg”, “Pb” and the like can be applied as the repellent component.

  The desalination rate level (L1), flux level (L2), and recovery rate level (L3) included in the water treatment apparatus information indicate the required performance of the separation membrane element 1 required in the water treatment apparatus of the corresponding customer. The desalting rate is the removal rate of salts (ionic components) of the separation membrane element 1 and indicates the desalting performance. The flux indicates the permeation performance (permeation flux) of the separation membrane element 1. The recovery rate indicates the ratio of the amount of permeated water to the amount of water supplied to the separation membrane element 1. Here, each level is classified into A to D. Level A indicates that the performance is higher, and level D indicates that the performance is lower.

For example, the desalination rate level is defined as “L1A ≧ 97%> L1B ≧ 95%> L1C ≧ 92%> L1D”. That is, “L1A” indicates that the desalting rate is 97% or more. “L1B” indicates less than 97% and 95% or more. “L1C” indicates less than 95% and 92% or more. “L1D” refers to less than 92%.
The flux level is defined as “L2A ≧ 1.2> L2B ≧ 1.0> L2C ≧ 0.8> L2D”. That is, “L2A” indicates that the flux is 1.2 m ³ / (m ² · day) or more. “L2B” indicates that it is less than 1.2 m ³ / (m ² · day) and 1.0 m ³ / (m ² · day) or more. “L2C” indicates that it is less than 1.0 m ³ / (m ² · day) and 0.8 m ³ / (m ² · day) or more. “L2D” refers to less than 0.8 m ³ / (m ² · day). Here, the flux is indicated by the amount of water that can be filtered per day per unit membrane area.
The recovery level is defined as “L3A ≧ 70%> L3B ≧ 60%> L3C ≧ 50%> L3D”. That is, “L3A” indicates that the desalting rate is 70% or more. “L3B” indicates less than 70% and 60% or more. “L3C” indicates less than 60% and 50% or more. “L3D” refers to less than 50%.

  Returning to FIG. 1, the separation membrane information storage unit 14 stores separation membrane information in which information indicating the attribute of the separation membrane element is associated with each separation membrane element that is reused in the water treatment apparatus. FIG. 3 is a diagram illustrating a data example of separation membrane information. The separation membrane information includes membrane ID, customer name history (history 1, history 2, history 3,... History n), desalination rate level, flux level, recovery rate level, and reservation code. Information on the inspection date, the reservation destination, and the delivery date.

  The membrane ID included in the separation membrane information is separation membrane identification information for identifying the separation membrane element 1 that is reused in the water treatment apparatus. The membrane ID is written and attached to the corresponding separation membrane element 1 on a stamp, a seal, a barcode, a two-dimensional code, an RFID, or the like. As the customer name history (history 1, history 2, history 3,... History n), the customer name of the customer who has the water treatment device in which the corresponding separation membrane element 1 is used is stored. Here, if the corresponding separation membrane element 1 is used in the water treatment apparatus a plurality of times, a history is stored every time it is used. The desalination rate level, the flux level, and the recovery rate level correspond to the information of the same name included in the water treatment apparatus information, and correspond to the inspection results of the performance after the used separation membrane element 1 is regenerated and washed. The degree of performance of the separation membrane element is shown. The reservation code is identification information indicating that the separation membrane element 1 stored in the separation membrane regeneration factory 30 is reserved for use in the water treatment apparatus.

  The inspection date included in the separation membrane information indicates the date on which the separation membrane element 1 was inspected. The reservation destination indicates the name of the customer who reserved the reuse of the corresponding separation membrane element 1. The delivery date indicates the date for delivering the corresponding separation membrane element 1 to the reserved customer. Here, when the separation membrane element 1 is required, if the separation membrane element 1 corresponding to the required application and performance is not stored in the separation membrane information storage unit 14, a newly unused separation membrane is used. Element 1 will be applied. In such a case, information indicating that a new separation membrane element 1 is reserved is stored in the separation membrane information storage unit 14. For example, in this figure, the row with the membrane ID “new” indicates that such a new separation membrane element 1 is reserved.

  Returning to FIG. 1, the warning unit 15 compares the elapsed period from the inspection date stored in the separation membrane information storage unit 14 with a predetermined limit period, and determines that the elapsed period exceeds the limit period. Output a warning. The limit period is determined in advance according to the period during which the performance of the separation membrane element 1 after cleaning is deteriorated, and is stored in the storage area of the warning unit 15, for example, two years. Here, the warning unit 15 periodically performs a warning process at a predetermined time, for example, once a day. The warning unit 15 has a timekeeping function. When a predetermined time is reached, the warning unit 15 reads information indicating the current date and time by the timekeeping function and calculates an elapsed period from the examination date to the current date and time. In addition, the warning unit 15 stores a limit period of the elapsed period in its storage area in advance, and compares the calculated elapsed period with a predetermined limit period. If the warning unit 15 determines that the calculated elapsed period is smaller than a predetermined limit period, the warning unit 15 does not output a warning. On the other hand, if it is determined that the calculated elapsed period is longer than a predetermined limit period, a warning is output.

  Here, the warning output from the warning unit 15 may be, for example, an e-mail with a predetermined text may be transmitted to a predetermined administrator's address, or the user may enter the separation membrane element selection device 10. You may make it display the text defined on the display part 12 of the separation membrane element selection apparatus 10 when logging in. The warning text may include information such as the separation membrane identification information of the separation membrane element whose elapsed time has passed the limit period, and information such as the position stored in the separation membrane regeneration factory 30. Thereby, for example, the administrator of the separation membrane element 1 can be informed that the separation membrane element 1 has been stored for a long period of time so that the performance is deteriorated. It becomes possible to manage the period so as to be as even as possible.

  The separation membrane element selection unit 16 stores the separation membrane information corresponding to the water treatment device information stored in the water treatment device information storage unit 13 and the information input to the input unit 11 in the separation membrane information storage unit 14. Selection is made from the stored separation membrane information, and the information is displayed on the display unit 12. Here, the separation membrane element selection unit 16 performs separation in association with the water treatment device identification information determined according to the water treatment device identification information for identifying the water treatment device to which the separation membrane element to be reused is provided. The separation membrane identification information stored in the membrane information storage unit 14 is read as the separation membrane identification information to be selected. For example, the separation membrane element selection unit 16 associates the repellent component stored in the water treatment device information storage unit 13 with the customer name corresponding to the water treatment device that reuses the separation membrane element, and the separation membrane information storage. Compared with the raw water-containing component stored in the unit 14, separation membrane identification information in which the repellent component is not included in the raw water-containing component is read out as a selection target.

  After the warning unit 15 outputs a warning, the inspection result update unit 17 receives a re-inspection result indicating that the separation membrane element determined that the elapsed period exceeds the limit period is re-inspected. Then, according to the input reinspection result, the inspection result such as the inspection date stored in the separation membrane information storage unit 14 is updated. For example, the inspection result update unit 17 receives the membrane ID of the separation membrane element 1 that has been re-inspected and the desalting rate, flux level, recovery level, inspection date, and the like as the inspection results. Then, the separation membrane information of the corresponding membrane ID is updated.

Next, an operation example of the separation membrane element selection apparatus 10 of the present embodiment will be described with reference to the drawings. 4-6 is a flowchart which shows the operation example of the separation membrane element selection process by the separation membrane element selection apparatus 10 of this embodiment.
First, in FIG. 4, the input unit 11 of the separation membrane element selection apparatus 10 receives information on a customer name, a required number, and a desired delivery date input from the user (step S <b> 1). The customer name is information indicating a customer who desires to provide the separation membrane element 1 stored in the recycling factory. The required number is the number of separation membrane elements 1 desired to be provided. The desired delivery date is the delivery date of the separation membrane element 1 desired by the customer. Here, it is assumed that “E medicine” is input as the customer name, “2” is input as the required number, and “10/05/10” (yy / mm / dd format) is input as the desired delivery date.

  The separation membrane element selection unit 16 reads the separation membrane information whose reservation destination is not registered from the separation membrane information storage unit 14 as the separation membrane information of the selection candidate (step S2). Here, since the reservation destination is registered in the separation membrane information of the membrane ID “0002” and the membrane ID “0009”, seven pieces of separation membrane information of the membrane IDs “0001” and “0003” to “0008” are registered. Are read out as selection candidates. Moreover, the separation membrane element selection part 16 reads the water treatment apparatus information corresponding to the customer name input in step S1 from the water treatment apparatus information storage part 13 (step S3). Here, the water treatment apparatus information corresponding to “E medicine” is read out.

  And the separation membrane element selection part 16 determines whether the repellent component is matched with the read water treatment apparatus information (step S4). If it is determined that the repellent component is not associated (step S4: none), the process proceeds to step S7. On the other hand, if it is determined that the repellent component is associated (step S4: Yes), the separation membrane element selection unit 16 from the water treatment device information storage unit 13 includes the repellent target water containing the repellent component in the raw water-containing component. The processing device information is read (step S5). Here, “E medicine” in the water treatment apparatus information is associated with repellent components of “TOC” and “As”. Therefore, the separation membrane element selection unit 16 reads the customer name “C Steel” containing “TOC” in the raw water-containing component and the customer name “G chemistry” containing “As” in the raw water-containing component.

  The separation membrane element selection unit 16 uses the separation candidate information (membrane IDs “0001”, “0003” to “0008”) to select customer names (“C Steel”, “G Chemical”) from the customer name history. ) Is extracted as selection candidates (step S6). Here, the customer name history of the separation membrane information of the membrane ID “0001” includes “C iron making”, and the customer name history of the separation membrane information of the membrane IDs “0006” and “0007” includes “G chemistry”. ”Are excluded, and four pieces of separation membrane information with membrane IDs“ 0003 ”to“ 0005 ”and“ 0008 ”are read out as selection candidates.

  The separation membrane element selection unit 16 compares the required number input in step S1 with the number of separation membrane information of selection candidates, and whether or not there is the number of selection membrane information of selection candidates corresponding to the required number. Is determined (step S7). If the separation membrane element selection unit 16 determines that there is no number of selection candidate separation membrane information corresponding to the required number (step S7: none), the process proceeds to step S23 in FIG. The separation membrane element selection unit 16 displays the difference between the required number and the number of selection candidate separation membrane information on the display unit 12 as the insufficient number of separation membrane elements 1 (step S23). The separation membrane element selection unit 16 stores a new membrane reservation record corresponding to the insufficient number of separation membrane elements 1 in the separation membrane information storage unit 14 (step S24).

  Returning to FIG. 4, when the separation membrane element selection unit 16 determines that there are a number of selection candidate separation membrane information corresponding to the required number (step S <b> 7: present), desalting is performed from the water treatment device information of “E medicine”. A rate level is acquired (step S8). Here, since the required number is “2” and the number of separation membrane information of the selection candidates is 4, it is determined that there are separation membrane information of the number of selection candidates corresponding to the required number, and “E medicine” “L1B”, which is the desalination rate level corresponding to And the separation membrane element selection part 16 extracts the separation membrane information in which a desalination rate level corresponds from the separation membrane information of a selection candidate as a selection candidate (step S9). Here, the separation membrane information of the membrane ID “0004” that matches the desalination rate level “L1B” among the four separation membrane information (membrane IDs “0003” to “0005”, “0008”) as selection candidates is shown. Extract as selection candidates.

  The separation membrane element selection unit 16 determines whether or not the number of selection candidate separation membrane information corresponding to the required number exists (step S10). Here, when it is determined that there is no separation membrane information corresponding to the required number of selection candidates (step S10: None), it is determined whether or not a higher desalination rate level exists (step S11). If the separation membrane element selection unit 16 determines that there is no higher desalination rate level (step S11: none), the process proceeds to step S23. If it is determined that a higher desalination rate level exists (step S11: present), the separation membrane element selection unit 16 reads out separation membrane information that matches the desalination rate level one level above, and the separation membrane information of the selection candidate (Step S12). Here, in step S10, the separation membrane information of the selection candidate is only one (membrane ID “0004”), which is less than the required number “2”. Therefore, the process proceeds to step S12, and the higher desalination rate level “L1A” Membrane ID “0008” corresponding to “” is added to the selection candidate. As a result, the number of separation membrane information of selection candidates is two (membrane IDs “0004” and “0008”), which satisfies the required number “2”.

  If it is determined in step S10 that there are separation membrane information of a number of selection candidates corresponding to the required number (step S10: present), the process proceeds to FIG. 5, and the separation membrane element selection unit 16 performs the “E chemical” water treatment device. A flux level corresponding to the information is acquired (step S13). Here, “L2C” which is a flux level corresponding to “E medicine” is read out. And the separation membrane element selection part 16 extracts the separation membrane information in which a flux level corresponds from the separation membrane information of a selection candidate as a selection candidate (step S14). Here, of the two separation membrane information (membrane IDs “0004” and “0008”) as selection candidates, both coincide with the flux level “L2C”, and any separation membrane information is set as the selection candidate.

  The separation membrane element selection unit 16 determines whether or not the number of selection candidate separation membrane information corresponding to the required number exists (step S15). Here, if it is determined that there is no number of selection candidate separation membrane information corresponding to the required number (step S15: None), it is determined whether a higher flux level exists (step S16). If the separation membrane element selection unit 16 determines that there is no higher flux level (step S16: none), the process proceeds to step S23. If it is determined that a higher flux level exists (step S16: present), the separation membrane element selection unit 16 adds separation membrane information that matches the flux level one step higher to the separation membrane information of the selection candidate (step S17). ). If it is determined in step S15 that there are as many selection candidate separation membrane information corresponding to the required number (step S15: present), the separation membrane element selection unit 16 determines the recovery rate from the water treatment device information of “E medicine”. A level is acquired (step S18). Here, in step S15, there are two separation membrane information (membrane IDs “0004” and “0008”) as selection candidates, and since the necessary number “2” is satisfied, the process proceeds to step S18.

  Here, “L3C” which is the recovery rate level corresponding to “E medicine” is read. And the separation membrane element selection part 16 extracts the separation membrane information in which a recovery rate level corresponds from the separation membrane information of a selection candidate as a selection candidate (step S19). Here, of the two separation membrane information (membrane IDs “0004” and “0008”) as selection candidates, both coincide with the recovery rate level “L3C”, and any separation membrane information is selected as the selection candidate. .

  The separation membrane element selection unit 16 determines whether or not the number of selection candidate separation membrane information corresponding to the required number exists (step S20). Here, if it is determined that there is no number of candidate separation membrane information corresponding to the required number (step S20: none), it is determined whether a higher recovery rate level exists (step S21). If the separation membrane element selection unit 16 determines that there is no higher recovery rate level (step S21: None), the process proceeds to step S23. If it is determined that a higher recovery rate level exists (step S21: Yes), the separation membrane element selection unit 16 adds separation membrane information that matches the recovery rate level one level higher to the separation membrane information of the selection candidate ( Step S22).

  If it is determined in step S20 that there is a number of selection candidate separation membrane information corresponding to the required number (step S20: present), the process proceeds to FIG. Separation membrane information is selected (step S25). Here, in step S22, there are two pieces of separation membrane information (membrane IDs “0004” and “0008”) as selection candidates, and the necessary number “2” is satisfied, so the process proceeds to step S25. Two pieces of separation membrane information (membrane IDs “0004” and “0008”) as selection candidates have the same inspection date, and any separation membrane information is similarly selected. Then, the separation membrane element selection unit 16 registers a new reservation code, customer name, and desired delivery date in the selected two pieces of separation membrane information, and stores them in the separation membrane information storage unit 14 (step S26). Here, for example, “1001-04” and “1001-05” are stored as new reservation codes, “E medicine” is stored as a reservation destination, and “10/05/10” is stored as a delivery date.

FIG. 7 is a flowchart showing an example of warning processing by the separation membrane element selection apparatus 10 of the present embodiment.
The warning unit 15 reads the separation membrane information stored in the separation membrane information storage unit 14 at a predetermined time (step S30). The warning unit 15 calculates an elapsed period from the examination date included in the read separation membrane information to the current date and time (step S31), and determines whether or not the elapsed period exceeds a predetermined limit period (step S31). S32). Here, when the warning unit 18 determines that the elapsed period exceeds a predetermined limit period (step S32: YES), the warning unit 18 outputs a warning (step S33). If it is determined that the elapsed period does not exceed the predetermined limit period (step S32: NO), no warning is output and the process ends.

In this embodiment, the spiral RO membrane has been described as an example. However, reuse of other similar separation membranes may be managed by the same configuration as in this embodiment.
Further, in the present embodiment, the separation membrane information is managed for each water treatment device, but a plurality of separation membrane elements 1 in the same water treatment device are managed according to the installed positions. Also good. For example, as shown in FIG. 8, a plurality of separation membrane elements 1 connected in series are identified from the supply water side to the permeate side as installation information A-1, A-2,. And the management of cleaning, inspection results, and the like may be performed for each piece of identification information of the installation position.
In the present embodiment, the customer name history is stored in the separation membrane information storage unit 14, but the raw water-containing component history in which the raw water-containing components used at the site are accumulated is stored, and the water treatment device information storage unit is stored. The separation membrane information that does not include the raw water-containing component history to be repelled may be extracted as a selection candidate in association with the 13 repellent components.
As described above, according to the present embodiment, it is possible to efficiently and safely reuse separation membrane elements provided to a plurality of water treatment apparatuses for different uses.

  The program for realizing the function of the processing unit in the present invention is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into a computer system and executed, thereby executing the separation membrane element. You may make a selection. Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a WWW system having a homepage providing environment (or display environment). The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Further, the “computer-readable recording medium” refers to a volatile memory (RAM) in a computer system that becomes a server or a client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, those holding programs for a certain period of time are also included.

  The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

DESCRIPTION OF SYMBOLS 10 Separation membrane element selection apparatus 11 Input part 12 Display part 13 Water treatment apparatus information storage part 14 Separation membrane information storage part 15 Warning part 16 Separation membrane element selection part 17 Inspection result update part 20 Separation membrane use factory 21 Water treatment apparatus 30 Separation Membrane regeneration factory

Claims (5)

A separation membrane element selection device for selecting separation membrane elements to be provided to a plurality of water treatment devices of different uses,
Separation membrane identification information for identifying a plurality of separation membrane elements to be reused in the water treatment device and water treatment device identification information for identifying the water treatment device in which the separation membrane element is used are stored in association with each other. A separation membrane information storage unit,
A water treatment device information storage unit for storing water treatment device identification information for identifying the water treatment device to be provided for the separation membrane element to be reused;
In accordance with the water treatment device identification information stored in the water treatment device information storage unit, the separation membrane identification associated with the determined water treatment device identification information and stored in the separation membrane information storage unit Separation membrane element selection section for reading information;
Equipped with a,
In the water treatment device information storage unit, repelling components in the water treatment device to be provided with the separation membrane element and raw water-containing components in the raw water of the water treatment device are associated with the water treatment device identification information. Remembered,
The separation membrane element selection unit is associated with the repellent component and the raw water-containing component stored in the water treatment device information storage unit in association with the water treatment device identification information stored in the separation membrane information storage unit. And reading separation membrane identification information for identifying the separation membrane element used in the water treatment apparatus in which the repellent component is not included in the raw water-containing component
Separation membrane element selection apparatus characterized by and this. A separation membrane element selection device for selecting separation membrane elements to be provided to a plurality of water treatment devices of different uses,
Separation membrane identification information for identifying a plurality of separation membrane elements to be reused in the water treatment device and water treatment device identification information for identifying the water treatment device in which the separation membrane element is used are stored in association with each other. A separation membrane information storage unit,
A water treatment device information storage unit for storing water treatment device identification information for identifying the water treatment device to be provided for the separation membrane element to be reused;
In accordance with the water treatment device identification information stored in the water treatment device information storage unit, the separation membrane identification associated with the determined water treatment device identification information and stored in the separation membrane information storage unit Separation membrane element selection section for reading information;
Equipped with a,
In the separation membrane information storage unit, an inspection date whose performance was inspected after the used separation membrane element was washed is stored in association with the separation membrane identification information,
The separation membrane element selection unit calculates an elapsed period from the inspection date corresponding to the separation membrane identification information when there are a plurality of the separation membrane identification information stored in the separation membrane information storage unit, Read the separation membrane identification information having a long calculated elapsed time among a plurality of separation membrane identification information
Separation membrane element selection apparatus characterized by and this. In the water treatment device information storage unit, a required performance indicating a degree of performance of the separation membrane element required in the water treatment device to be provided of the separation membrane element is stored,
In the separation membrane information storage unit, an inspection result whose performance is inspected after the used separation membrane element is cleaned is stored in association with the separation membrane identification information,
The separation membrane element selection unit compares the required performance stored in the water treatment device information storage unit with the inspection result stored in the separation membrane information storage unit, and corresponds to the required performance. The separation membrane element selection apparatus according to claim 1 or 2 , wherein the separation membrane identification information associated with an inspection result is read out. Correspondence between separation membrane identification information for identifying a plurality of separation membrane elements to be reused in a plurality of water treatment devices for different uses and water treatment device identification information for identifying the water treatment device in which the separation membrane element is used The separation membrane information storage unit that is attached and stored, the water treatment device identification information that identifies the water treatment device that is the provision target of the separation membrane element to be reused, and the water treatment device identification information A separation membrane element selection method of a separation membrane element selection device comprising a repellent component in a water treatment device and a water treatment device information storage unit in which raw water-containing components in raw water of the water treatment device are stored in association with each other. ,
The repelling component is compared with the raw water-containing component stored in the water treatment device information storage unit in association with the water treatment device identification information stored in the separation membrane information storage unit, and the repelling A separation membrane element selection method comprising: reading separation membrane identification information for identifying the separation membrane element used in the water treatment apparatus whose component is not included in the raw water-containing component . Separation membrane identification information for identifying a plurality of separation membrane elements to be reused in a plurality of water treatment devices for different uses, water treatment device identification information for identifying the water treatment device in which the separation membrane element is used , and use A separation membrane information storage unit that stores an association with an inspection date on which performance is inspected after the separation membrane element is cleaned, and the water treatment apparatus that is a target for providing the separation membrane element to be reused A separation membrane element selection method of a separation membrane element selection device comprising a water treatment device information storage unit for storing water treatment device identification information for identifying
In accordance with the water treatment device identification information stored in the water treatment device information storage unit, the separation membrane identification associated with the determined water treatment device identification information and stored in the separation membrane information storage unit to read out the information, when the separation membrane identification information stored in the separation membrane information storage unit there are multiple, and calculates the elapsed time from the examination date corresponding to the separation membrane identification information of the plurality A method for selecting a separation membrane element, comprising: reading out the separation membrane identification information having a long calculated elapsed time from the separation membrane identification information .

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