WO2015133049A1

WO2015133049A1 - Water treatment system and program

Info

Publication number: WO2015133049A1
Application number: PCT/JP2015/000083
Authority: WO
Inventors: ハリーシュプティーヤヴィーティル
Original assignee: パナソニックＩｐマネジメント株式会社
Priority date: 2014-03-03
Filing date: 2015-01-09
Publication date: 2015-09-11
Also published as: JP2017077501A

Abstract

The present invention addresses the problem of increasing the utilization efficiency of introduced water. In this water treatment system (10), a first sensor (21) monitors the components contained in the water before use and a second sensor (22) monitors the components contained in waste water after use. A treatment unit (11) improves water quality by removing at least a portion of the components contained in waste water. A distribution unit (12) distributes water use to any of multiple uses on the basis of the components detected by the first sensor (21). A switching unit (13) switches between a path for delivering the waste water to the treatment unit (11) and performing re-treatment and a path for discarding the waste water. A control unit (20) controls the switching unit (13) on the basis of the waste water component information detected by the second sensor (22) and when performing re-treatment of waste water, gives information on instructions relating to the improvement of water quality to the treatment unit (11).

Description

Water treatment system, program

The present invention relates to a small-scale water treatment system and program for improving the quality of raw water. More specifically, the present invention relates to a water treatment system having a treatment capacity sufficient for use in a single building or an area composed of several houses, and a program for causing a computer to function as a control unit in the water treatment system.

Securing water necessary for people to live is an important issue today. In particular, in some areas such as Asia and Africa, where the population has begun to increase significantly, impurities that are not suitable for use are often mixed in land water. Therefore, improvement of water quality is an urgent issue in these areas more than other areas.

Various techniques using physical treatment, chemical treatment, or biological treatment alone or in combination have been proposed for water quality improvement. For example, a technique using an electrodeionization apparatus or an ion exchange resin is described as a water treatment technique for reducing the concentration of a component such as calcium or magnesium (for example, Japanese Patent Application Publication No. 2007-513749 (hereinafter “ Reference 1))). Reference 1 lists a reverse osmosis device, an electrochemical device, an ultrafiltration device, a microfiltration device, and a distillation device as examples of treatment devices for improving water quality.

Further, there has been proposed a water purification system for small-scale facilities that can be used for drinking and the like by improving the water quality of river water, well water, rainwater (for example, Japanese Patent Application Publication No. 2013-86034 ( Refer to “Reference 2” below).

Document 1 describes various treatment apparatuses for improving water quality. In the configuration described in Document 1, treated water obtained by passing water from a water source through a treatment device (for example, an electrodeionization device) is used in a washing machine, a dishwasher, a kitchen sink, a shower head, and the like.

Reference 2 describes a water purification system comprising a primary water tank and a secondary water tank, purifies the introduced water through a filter and an ozone generator / mixer, and supplies this water to the primary water tank. The storage configuration is described. The technique described in Document 2 adopts a configuration in which water is circulated between a primary water tank, a filter, and an ozone generator / mixer as necessary.

The techniques described in Document 1 and Document 2 are techniques proposed for producing water suitable for drinking. That is, the techniques of Documents 1 and 2 are techniques for generating water with a high water quality level, and there is no viewpoint in Documents 1 and 2 that water quality is improved in order to increase water use efficiency.

The object of the present invention is to provide a water treatment system in which water quality is improved in order to enhance water use efficiency. Furthermore, an object of this invention is to provide the program for functioning a computer as a control part of this water treatment system.

The water treatment system according to the present invention includes a first sensor for monitoring components contained in water before use, a second sensor for monitoring components contained in waste water after use, and the waste water. A processing unit that removes at least a part of the contained components to improve water quality, a distribution unit that distributes the use of water to one of a plurality of uses based on the component detected by the first sensor, and the waste water A switching unit that switches a route between reprocessing and discarding the wastewater, and controlling the switching unit based on information on the wastewater component detected by the second sensor; and When performing the said reprocessing of wastewater, the control part which provides the information of the instruction | indication regarding the said water quality improvement to the said process part is provided, It is characterized by the above-mentioned.

The program according to the present invention is for causing a computer to function as the control unit used in any of the water treatment systems described above. The present invention is not limited to a program, and may be a computer-readable recording medium that records the program.

Preferred embodiments of the invention are described in more detail. Other features and advantages of the present invention will be better understood with reference to the following detailed description and accompanying drawings.
It is a schematic block diagram which shows the water treatment system of embodiment. It is a schematic block diagram which shows the other water treatment system of embodiment. It is a schematic block diagram which shows the usage example of embodiment.

As shown in FIG. 1, the water treatment system 10 described below includes a treatment unit 11, a distribution unit 12, a switching unit 13, a control unit 20, a first sensor 21, and a second sensor 22. The first sensor 21 monitors components contained in the water before use, and the second sensor 22 monitors components contained in the waste water after use. The process part 11 removes at least one part of the component contained in wastewater, and performs water quality improvement. The distribution unit 12 distributes the use of water to one of a plurality of uses based on the component detected by the first sensor 21. The switching unit 13 switches a route for transferring the waste water to the processing unit 11 and performing reprocessing or discarding the waste water. The control unit 20 controls the switching unit 13 based on the information on the wastewater component detected by the second sensor 22 and provides the processing unit 11 with information on instructions regarding water quality improvement when reprocessing the wastewater. .

According to the configuration of the water treatment system 10, the components of water before use are monitored, the water is distributed to any of a plurality of uses based on the monitored results, and the components are also monitored for waste water. Based on the above, the route for reprocessing or discarding is selected. That is, by assigning the use of water according to the components contained in the water before use, it is possible to use water that is not suitable for drinking for other uses. In addition, waste water can be reused by reprocessing depending on the components to improve water quality. As a result, it is possible to reduce the amount of water that is discarded in the unit period of the introduced water, and it is possible to increase the use efficiency of water. In addition, water other than drinking has the advantage that the degree of water quality improvement can be kept low, and the configuration of the processing unit is simplified and the life of the processing unit is also extended.

The processing unit 11 is configured to remove specific components from the raw water and waste water collected from the water source 42 for use. It is desirable for the first sensor 21 to monitor the components contained in the water before being used after the water quality is improved in the processing unit 11.

The water treatment system 10 preferably further includes a third sensor 23 that monitors the quality of the raw water. In this case, the processing unit 11 includes a first processing unit 111 configured to remove specific components contained in the raw water, and a second processing unit 112 configured to remove specific components contained in the waste water. With. The first processing unit 111 improves the water quality by combining the water and the raw water after the second processing unit 112 performs the reprocessing of the wastewater (processing for reusing the wastewater).

It is desirable that the water treatment system 10 includes a management unit 24 that collects history information. The history information is information in which information about the components detected by the first sensor 21 and the second sensor 22 is associated with the date and time when this information is acquired.

The history information preferably includes the geographical position of the place where the processing unit 11 is provided. The management unit 24 is preferably provided in the server 30 that collects history information through the telecommunication line 33. The server 30 includes a storage unit 31 that collects and records history information through the telecommunication line 33, and a monitoring unit 32 that monitors the performance of the processing unit 11 using the history information recorded in the storage unit 31. desirable.

Hereinafter, this embodiment will be described in more detail. In the present embodiment, the water quality level that requires water quality improvement is classified into three stages of “medium”, “low”, and “unusable”, and uses after the water quality improvement is “drinking”, “ It is classified into three stages, “for laundry” and “for chores”. The use corresponds to the water quality level. For example, the “medium” level corresponds to “for laundry” and the “low” level corresponds to “for chores”. “Unusable” level means a water quality level that is not suitable for use. “Drinking” water has a “high” level of water quality. In other words, the water quality level is divided into four levels: a water quality level that requires water quality improvement (“medium” level, “low” level, “unusable level”) and a water quality level that does not require water quality improvement (“high” level). is there.

The name of the application indicates a typical application, but it does not mean that it is used only for the application indicated by the name. For example, “drinking” means that the water quality that can be used for drinking is safe, even if it is consumed for a long time or touches the human body, such as for food or bathing, damage to health or infection It means that the water quality is such that no water is generated. Further, “for washing” means that the water quality is such that it does not cause health damage or infection damage even if it is temporarily touched by a human body such as bathing or showering. Furthermore, “chores” is not suitable for use in contact with humans, but represents water quality that may be used for applications that do not contact humans, such as vehicle washing or toilet flushing.

Table 1 shows an example of the correspondence between the components to be removed for use in each application and the water quality level classification when the corresponding components are included. Table 1 is an example, and the relationship between the components to be removed from the water to be improved in water quality and the classification of the water quality level can be determined elsewhere. In Table 1, the treatment technology is associated with each water quality level category, but as shown in Table 2 later, the treatment technology is associated with each component to be removed, and the relationship in Table 1 is merely an example. The components to be removed and the usage after treatment do not have to be in the correspondence relationship shown in Table 1. For example, if the hardness, pH, sulfide, etc. are adjusted to an appropriate range, they may be suitable for drinking. In Table 1, the water quality level corresponds to each component to be removed. Furthermore, in Table 1, the treatment technology corresponds to each water quality level.

In Table 1, the evaporation residue is TDS (Total Dissolved Solids), and the NF film is a nanofiltration (Nanofiltration Membrane). Deep filtration is a treatment technique that removes impurities using a filter medium selected from vegetation, gravel, sand, ceramics, polymer fibers, charcoal and the like. The treatment technique for pH means adjusting to a pH value suitable for drinking (for example, 5.8 to 8.6). The hardness is also adjusted to an appropriate range according to the purpose of use.

In Table 1, the water quality level that is the target of water quality improvement is classified into three levels, and the uses after treatment are classified into three types. However, the water quality level and types of applications can be determined as appropriate. It is. Therefore, the components are also appropriately selected according to the water quality level or the setting of the application. For example, two uses of “for laundry” and “for agriculture” may be set between “drinking” and “chores”. In this case, “for laundry” removes the components shown in Table 1, and “for agriculture” removes arsenic, mercury, lead, etc., and iron, copper, nitride, etc. are left at an appropriate concentration. May be.

Table 2 shows examples of processing technologies that can be applied to the components to be removed. In Table 2, anion exchange indicates that ion exchange is performed using a strong acid, and cation exchange indicates that ion exchange is performed using a strong base. Similarly, water softening indicates ion exchange using salt.

As is clear from Table 2, many processing techniques are effective for a plurality of components. That is, if a component contained in water is known, a plurality of types of treatment techniques may be selectable for one type of component. Conversely, one type of processing technique may be applicable to a plurality of types of components.

Hereinafter, a configuration example of the water treatment system 10 will be described. The water treatment system 10 to be described below has a treatment capacity enough to be used in an area composed of one building or several houses. That is, the water treatment system 10 of this embodiment is not a centralized system such as a city-scale water supply or sewerage system, but a distributed power source suitable for one or a plurality of buildings, such as a distributed power supply for a centralized power generation facility. Used as a mold system.

FIG. 1 shows a configuration example in the case where “high” level water is supplied from the water purification plant 41, and FIG. 2 shows that the “high” level water is generated by improving the quality of raw water taken from the water source 42. A configuration example is shown. That is, the configuration example shown in FIG. 1 is the water treatment system 10 when the water supply can be used, and the configuration example shown in FIG. 2 is the water treatment system 10 when the water supply cannot be used.

The water treatment system 10 having the configuration shown in FIG. 1 can be used even in a place where the water of the water supply can be used for every application. If the water treatment system 10 having such a configuration is adopted, the water treatment system 10 can be used. It becomes possible to reduce the supply amount of water. Further, in the configuration example shown in FIG. 1, since “drinking” water is supplied from the water supply, it is not necessary to generate “drinking” water from raw water unlike the configuration example shown in FIG. In addition, the structural example shown in FIG. 1 and FIG. 2 is only an example, and it is possible to employ | adopt a different structure according to the component contained in waterworks or raw | natural water.

Raw water that can be used by humans includes groundwater, river water (including lake water), and rainwater, and the quality of raw water varies depending on the location. For example, in agriculture and industry, when production expands, not only is more water required, but surface water (rain water, river water, etc.) and groundwater can be contaminated. Therefore, in the vicinity of farmland or factories, the water taken from the water source 42 may affect health if used for drinking without improving the water quality.

In addition, not only artificial pollution, but also Southeast Asia including Bangladesh, raw water may contain inorganic arsenic, and raw water may contain fluorine in many countries including China and India. Thus, naturally occurring pollutants also affect the safety when supplying water. Under such circumstances, the water treatment system 10 is required to be constructed so as to be adapted to the site.

In the water treatment system 10 shown in FIG. 1, “drinking” water having a “high” level is supplied from a water purification plant 41 through a water supply 43, and “washing” and “miscellaneous” water uses groundwater or surface water as a water source 42. Supplied as Depending on the components contained in the water supply 43, the water quality of the water in the water supply 43 may need to be improved. In the illustrated example, the processing unit 113 (corresponding to the processing unit 11) is provided to improve the water quality of the water in the water supply 43, but whether or not the processing unit 113 is provided depends on the components contained in the water in the water supply 43. Is selected accordingly.

In the illustrated example, two

water supply tanks

51 and 52 are installed in the upper part of the building 50. One water supply tank 51 is provided for supplying “drinking” level water, and the other water supply tank 52 is provided for supplying water that is not “drinking” level. The water supplied from the water supply tank 52 is not at the “drinking” level but at a higher water quality level than the “unusable” level, and in this embodiment, becomes “washing” or “chores”. In addition, although FIG. 1 shows four types of applications of “drinking”, “for laundry”, “for miscellaneous use”, and “for toilet bowl cleaning”, it is classified into five or more types (that is, the water quality level is five or more levels). May be. For example, a water quality level of “for bathing” may be provided between “drinking” and “for laundry”, and “chores” is classified into two stages of “others” and “for toilets” May be.

The water stored in the water supply tank 51 and the water supply tank 52 is configured to fall naturally due to gravity, and to obtain the pressure required for the water used in the building 50. A pump 53 for pumping water into the water supply tank 51 and a pump 54 for pumping water into the water supply tank 52 are provided.

Before the water stored in the water supply tank 51 is used for “drinking”, the component (first component) is monitored (detected) by the sensor 211 (first sensor 21). In the illustrated example, a water purifier 55 for removing impurities before being used is provided. The processing unit 113 and the water purifier 55 described above are not essential. However, there is a variation in the degree of water quality improvement in the water supply 43, and when water is stored in the water supply tank 51 for a long time, there is a possibility that foreign matter is mixed in or bacteria are propagated. Therefore, it is desirable to improve water quality by applying an appropriate treatment technique in the processing unit 113 and the water purifier 55.

Since the components in the water supply 43 are not necessarily constant, it is desirable to give instruction information regarding water quality improvement to the processing unit 113 according to the type and concentration of the components detected by the sensor 211. On the other hand, since the elements affecting the water quality in the water supply tank 51 are limited, the water purifier 55 may be configured to remove the assumed components.

By the way, the water supply tank 52 passes the raw water from the water source 42 through the first processing unit 111 to improve the water quality and waste water described later through the second processing unit 112, and further passes through the first processing unit 111. To store water with improved water quality. The first processing unit 111 and the second processing unit 112 constitute the processing unit 11. Similar to the water stored in the water supply tank 51, the component (first component) of the water stored in the water supply tank 52 is monitored (detected) by the sensor 212 (first sensor 21) before use. . That is, the water before use includes water before being used after the water quality is improved by the processing unit 11.

The processing capability of the first processing unit 111, the second processing unit 112, and the processing unit 113 is adjusted according to the concentration (or amount) of the component to be removed. For example, when the concentration of the component to be removed is high, the flow rate of the water passing through the first processing unit 111, the second processing unit 112, and the processing unit 113 is adjusted so that the passing time becomes longer. In addition, when the water quality is improved by mixing the drug, the amount or concentration of the drug is adjusted, and when the water quality is improved using physical energy (light, heat, electricity, etc.), the energy amount is adjusted.

Since the water stored in the water supply tank 52 is derived from raw water or wastewater, the components may vary even if the water quality is improved by the processing unit 11. Therefore, the control unit 20 determines the water quality level according to the component detected by the sensor 212. The water supplied from the water supply tank 52 is distributed by the distribution unit 12 according to use. That is, the distribution unit 12 distributes the use of water before use to any of a plurality of uses based on the component detected by the sensor 212 (first sensor 21). In order to use the water distributed according to the application for each application, the distribution unit 12 can store the small-capacity water storage tanks (the second water storage tank 122, the third water storage tank 123, and the fourth water storage tank 124 in FIG. 2). Temporarily). The distribution unit 12 is controlled by the control unit 20 based on the components detected by the sensor 212. In addition, the sensor 211 and the sensor 212 function as the first sensor 21 for monitoring the components contained in the water before use.

This embodiment is characterized in that it is possible to select whether to reprocess waste water or discard waste water according to the components contained in the waste water after using water. Therefore, a second sensor 22 that monitors (detects) a component of the wastewater (second component) and a switching unit 13 that switches the path of the wastewater according to the component detected by the second sensor 22 are provided. Wastewater to be reprocessed is introduced into the first processing unit 111 after being introduced into the second processing unit 112 to remove specific components. Here, the removal of the specific component is not limited to the complete removal of the specific component, and may be a reduction of the specific component. The component that is the detection target of the first sensor 21 and the component that is the detection target of the second sensor 22 may be the same or different.

The first processing unit 111 is provided to obtain water of a water quality level that can be supplied to the water supply tank 52 by removing specific components from the raw water. The first processing unit 111 is designed according to the components contained in the raw water collected from the water source 42. However, since the types and concentrations of the components contained in the raw water may vary depending on the timing at which the raw water is collected from the water source 42, the water quality stored in the water supply tank 52 after the first treatment unit 111 has improved the water quality. The level may vary.

On the other hand, the components contained in the waste water are mainly food components, detergents, sebum, etc. if the toilet flushing water is separated, and the concentration of the components removed by the second processing unit 112 may vary. There is little variation in types. Therefore, the water quality level after the specific component is removed by the second processing unit 112 is relatively high. Therefore, the component of the raw water is diluted by confirming the component with the sensor 212 which is the first sensor 21 before being used, and further mixing the water whose component is confirmed with the second sensor 22 into the raw water. It will be.

That is, by mixing the water whose water quality has been improved by the second processing unit 112 with the raw water and diluting the components of the raw water, the water quality is improved by the first processing unit 111, so that water having a relatively high water quality level can be obtained. It is possible to store in the water supply tank 52. In the illustrated example, a pump 56 is provided to take the raw water into the first processing unit 111.

The switching unit 13 always selects a route for reprocessing wastewater, and the wastewater is introduced into the second processing unit 112 through the switching unit 13. The second sensor 22 monitors the component after the water quality has been improved by the second processing unit 112, and gives the control unit 20 information regarding the component contained in the water processed by the second processing unit 112. The control unit 20 instructs the switching unit 13 to select the wastewater path according to the information acquired from the second sensor 22. Since the control part 20 acquires the information regarding the component after removing a specific component from wastewater in the 2nd processing part 112 from the 2nd sensor 22, the water quality improvement of wastewater is fully carried out by the 2nd processing part 112. It becomes possible to evaluate whether or not it can be performed. When it is evaluated that the waste water is not suitable for reprocessing, the control unit 20 instructs the switching unit 13 to select a route for discarding water.

In the configuration example shown in FIG. 1, the waste water to be discarded includes not only the waste water whose path to be discarded by the switching unit 13 is selected but also water used for cleaning the toilet bowl. The waste water discarded in this way is discarded after reducing the load on the natural world in order to wait for natural purification. In order to reduce the load on the natural world, in the illustrated example, a treatment pond 61 in which a sewage treatment plant (STP: Sewage Treatment Plant) is planted and a microbial fuel cell 62 (MFC: Microbial Fuel Cell) are used. As the sewage treatment plant, for example, a reed is used. Also, the microbial fuel cell 62 is used as an energy source for driving a fan for aeration processing for introducing air because the energy that can be taken out is small.

The control unit 20 includes a processor that operates according to a program. This processor is used together with a memory, an interface device and the like to constitute a computer. Alternatively, the processor may be a microcomputer integrated with a memory, an interface, and the like. The control unit 20 uses a device including a processor as a main hardware element. The program is provided in a state of being recorded in advance in a ROM (Read Only Memory) or provided through an electric communication line such as the Internet. Alternatively, the program is provided using a computer-readable recording medium.

The control unit 20 includes an acquisition unit 201 that acquires information on components monitored from the sensors 211 and 212 (first sensor 21) and the second sensor 22. Further, the control unit 20 determines whether the first processing unit 111, the second processing unit 112 (including the processing unit 113 in some cases), the distribution unit 12, and the switching unit 13 based on the information acquired through the acquisition unit 201. A determination unit 202 that generates information to be instructed is provided.

The acquisition unit 201 acquires information regarding the component detected by the sensor 211 from the sensor 211 and acquires information regarding the component detected by the sensor 212 from the sensor 212. Further, the acquisition unit 201 acquires information about the component detected by the second sensor 22 from the second sensor 22.

The determination unit 202 determines the water quality level by collating the information about the components detected by the first sensor 21 and the second sensor 22 with the storage unit 203 storing the contents corresponding to Table 1. Furthermore, the determination unit 202 generates information instructing the processing unit 11, the distribution unit 12, and the switching unit 13 so as to distribute water to uses according to the water quality level.

The information generated by the determination unit 202 is given to the processing unit 11, the distribution unit 12, and the switching unit 13 through the output unit 204. In addition, the 1st sensor 21 and the 2nd sensor 22 are selected from an electrochemical sensor, a biosensor, an optical sensor etc., and are used independently or are used in combination.

In the configuration example shown in FIG. 1, “drinking” water is supplied from the water supply, and the quality of the collected raw water and waste water is improved to generate water for purposes other than “drinking”. Moreover, the water of uses other than "drinking" distributes the use by evaluating a component. On the other hand, the configuration example of FIG. 2 described below generates “drinkable” water using only raw water and waste water without using the water supply.

Although the control unit 20 is not shown in FIG. 2, the control unit 20 has the same configuration as the control unit 20 shown in FIG. That is, the control unit 20 acquires information on components detected by the first sensor 21, the second sensor 22, and the third sensor 23, and provides information to instruct the processing unit 11, the distribution unit 12, and the switching unit 13. give.

The water treatment system 10 shown in FIG. 2 has a first treatment unit 111 configured to remove a specific component contained in raw water and a specific component contained in waste water, as in the configuration example shown in FIG. And a second processing unit 112 configured to remove. However, the first processing unit 111 includes three stages of

processing units

1111, 1112, and 1113.

That is, the first processing unit 111 includes a processing unit 1111 that improves the water quality from the “unusable” level to the “low” level, a processing unit 1112 that improves the water quality from the “low” level to the “medium” level, And a processing unit 1113 for improving the water quality from the “medium” level to the “high” level. Water whose water quality has been improved by the processing unit 1111 is “chores”, water whose water quality has been improved by the processing unit 1112 is “for laundry”, and water whose water quality has been improved by the processing unit 1113 is “drinking”. is there.

As described above, the first processing unit 111 improves the water quality level one step at a time in three steps of the processing unit 1111, the processing unit 1112, and the processing unit 1113. Therefore, the degree to which each of the processing unit 1112 and the processing unit 1113 is contaminated is reduced as compared with a case where a single processing unit is used to improve the water quality level in a plurality of stages. In addition, the processing unit 1111, the processing unit 1112, and the processing unit 1113 only have to adopt a processing technique according to the components at each stage, and it is not necessary to consider the components at other stages. Design for processing is facilitated.

In the configuration example shown in FIG. 2, a first water storage tank 121 for storing “low” level water is provided between the processing unit 1111 and the processing unit 1112, and “middle” is provided between the processing unit 1112 and the processing unit 1113. A second water reservoir 122 is provided to store “level” water. Further, the “high” level water whose water quality has been improved by the processing unit 1113 is stored in the third water tank 123. In the illustrated example, the “low” level water processed by the processing unit 1111 is stored not only in the first water tank 121 but also in the fourth water tank 124.

The water stored in the first water tank 121 is improved to a “medium” level through the processing unit 1112, and further improved to a “high” level through the processing unit 1113. In other words, the “low” level water stored in the first water tank 121 is distributed to produce “washing” and “drinking” water. The “low” level water stored in the fourth water storage tank 124 is used as a “chore” for purposes such as toilet flushing (for flush toilets), vehicle washing, and non-edible plant growth.

The water treatment system 10 shown in FIG. 2 includes a first valve 125 between the first water tank 121 and the treatment unit 1112, and a second valve between the second water tank 122 and the treatment unit 1113. 126. The first valve 125 and the second valve 126 are operated by an electric signal including an instruction content from the control unit 20. The first valve 125 and the second valve 126 are configured to open and close only, but a configuration that can adjust the opening amount is more desirable.

The second water tank 122, the third water tank 123, the fourth water tank 124, the first valve 125, and the second valve 126 receive water whose water quality has been improved by the first processing unit 111. Since it distributes for every use, it functions as the distribution unit 12.

In order to monitor the components contained in the water before use, the outlets of the second water tank 122, the third water tank 123, and the fourth water tank 124 are included in the water of each water quality level.

Sensors

213, 214, 215 are arranged to monitor the components being monitored. A sensor 213 disposed at the outlet of the second water tank 122 monitors components contained in the “washing” water. In addition, a sensor 214 disposed at the outlet of the third water tank 123 monitors components contained in “drinkable” water. In addition, a sensor 215 located at the outlet of the fourth reservoir 124 monitors the components contained in the “chores” water. The

sensors

213, 214, and 215 are provided as the first sensor 21 in order to monitor components contained in the water to be used. The place where the

sensors

213, 214, and 215 are arranged is not limited to the position described above, but the first sensor 21 is desirably arranged so that the water component for each application can be monitored.

The configuration example shown in FIG. 2 does not include the

water supply tanks

51 and 52 shown in FIG. 1, but the functions corresponding to the

water supply tanks

51 and 52 are the first water storage tank 121, the second water storage tank 122, The third water tank 123 and the fourth water tank 124 are in charge. Moreover, it is desirable that the water treatment system 10 includes a pump as appropriate. For example, when gravity is used to supply water in the order of the processing unit 1111, the processing unit 1112, and the processing unit 1113, a configuration in which raw water introduced into the processing unit 1111 is pumped is adopted. Moreover, in order to use the water stored in the 2nd water tank 122, the 3rd water tank 123, and the 4th water tank 124, respectively, the structure which pumps water may be sufficient.

This water treatment system 10 takes out water of a water quality level according to the use from the second water tank 122, the third water tank 123, and the fourth water tank 124. Furthermore, the water treatment system 10 also has a function of treating waste water after use. Wastewater is handled differently depending on whether the water before use is “high”, “medium” or “low”.

廃 Wastewater after using “high” level water is reprocessed or discarded. In the illustrated example, the third valve 131 is provided in the reprocessing path, and the fourth valve 132 is provided in the disposal path. The third valve 131 and the fourth valve 132 can be selected from three states, a state in which only one of them is open and a state in which both are closed. A purification facility 70 constituting the second processing unit 112 is provided in the path for reprocessing wastewater, and when the third valve 131 is opened, the wastewater is introduced into the purification facility 70. In addition, waste water after using “medium” level water is also introduced into the purification facility 70.

The purification facility 70 is a facility for improving the water quality of the introduced water to at least the same water quality level as the raw water, and includes a septic tank 71, an aeration tank 72, and a disinfection device 73. The septic tank 71 is configured to treat the wastewater in the tank with anaerobic microorganisms, and the aeration tank 72 filters the wastewater that has passed through the septic tank 71 and then treats the wastewater in the tank with aerobic microorganisms. It is configured. The disinfecting device 73 is configured to disinfect the waste water taken out from the aeration tank 72 with ultraviolet rays. Of the waste water in the septic tank 71, waste water that is not sent to the aeration tank 72 is discarded through the fifth valve 133.

The controller 20 opens and closes the third valve 131, the fourth valve 132, and the fifth valve 133. Also, a second sensor 22 is provided to monitor the quality of the wastewater after using “high” level water. Similarly to the first sensor 21, the second sensor 22 is selected from an electrochemical sensor, a biosensor, an optical sensor, and the like, and used alone or in combination. The control unit 20 has a function of controlling opening and closing of the third valve 131, the fourth valve 132, and the fifth valve 133 according to the water quality measured by the second sensor 22.

That is, the control unit 20 opens the third valve 131 when it is determined that the water quality can be improved in the second processing unit 112 based on the wastewater component monitored by the second sensor 22. As a result, the waste water is introduced into the purification equipment 70. In addition, when the control unit 20 determines that it is difficult to improve the water quality in the second processing unit 112 with respect to the components of the wastewater monitored by the second sensor 22, the control unit 20 opens the fourth valve 132 to open the wastewater. Discard. Note that the control unit 20 desirably closes the third valve 131 and the fourth valve 132 when the wastewater does not pass through the second sensor 22. The fifth valve 133 is opened by an operation based on an electrical signal from the control unit 20 when waste water is discarded from the septic tank 71.

The wastewater after the water quality is improved by the purification facility 70 is relatively clean and the water quality is improved to the same level or higher than the raw water. Therefore, the treatment pond in which the sewage treatment plant (STP) is planted. After being introduced to 74, it is returned to the processing unit 1111. As the sewage treatment plant, for example, a reed is used. In the configuration example illustrated in FIG. 2, the processing pond 74 also functions as the second processing unit 112.

As is clear from the above-described configuration, the third valve 131, the fourth valve 132, and the fifth valve 133 function as the switching unit 13 that selects the wastewater path. Further, the purification facility 70 and the treatment pond 74 function as the second treatment unit 112. In the configuration example of FIG. 2, the third sensor 23 monitors (detects) the component (third component) contained in the raw water. Similar to the configuration example illustrated in FIG. 1, the control unit 20 controls the distribution unit 12 according to the component detected by the first sensor 21 (the component detected by the third sensor 23 is also used). However, in the configuration example shown in FIG. 2, since the first processing unit 111 includes the three-

stage processing units

1111, 1112, and 1113, in most cases, “drinking” Can be produced. Therefore, it is desirable that the distribution unit 12 has a function of adjusting the amount to be distributed when the water whose water quality has been improved by the first processing unit 111 is distributed for each application. The component that is the detection target of the third sensor 23 may be the same as or different from the component that is the detection target of the first sensor 21 or the component that is the detection target of the second sensor 22. Also good.

Incidentally, the processing unit 1111, the processing unit 1112, and the processing unit 1113 are configured as modules corresponding to respective processing targets. Therefore, if the combination of modules is selected according to the water quality of raw water available at the site where the water treatment system 10 is installed and the water quality level to be taken out according to the application, the water treatment system 10 suitable for the site can be assembled. It becomes possible. Moreover, since the module which comprises the water treatment system 10 is independent, it is possible to replace | exchange a required module separately according to the water quality introduced. In addition, since the modules can be individually replaced, an increase in cost during maintenance can be suppressed.

In addition, as for the process part 1111, the process part 1112, and the process part 1113, it is desirable that the module of a different capacity | capacitance is prepared beforehand according to the processing amount of water. Moreover, it is desirable to design in advance about the typical structure of the housing | casing or building for comprising the water treatment system 10 using a module according to the typical combination method of a module and the amount of water treatment. By preparing the casing or building and the module in advance, it is possible to quickly provide the water treatment system 10 according to the required specifications.

By the way, in the configuration example described above, the first sensor 21 monitors the water component before use, the second sensor 22 monitors the waste water component, and the raw water component is third if necessary. The sensor 23 is monitoring. If the information about the components monitored by the first sensor 21 and the second sensor 22 is associated with the date and time when the information was acquired and stored as history information, the operation of the water treatment system 10 can be managed. Is possible. The history information includes information in which information on the component (first component) detected by the first sensor 21 is associated with the date and time when the management unit 24 acquired this information. The history information includes information that associates information about the component (second component) detected by the second sensor 22 with the date and time when the management unit 24 acquired this information. It is desirable that the history information includes not only information on the components monitored by the first sensor 21 and the second sensor 22, but also information on the components monitored by the third sensor 23. The date and time to be included in the history information is counted by a built-in clock provided in the control unit 20.

If the history information is collected, it becomes possible to know the degree of deterioration of performance due to changes with time of the first processing unit 111 and the second processing unit 112. In addition, since the configuration shown in FIG. 2 includes three

sensors

213, 214, and 215 that function as the first sensor 21, it is possible to know the degree of performance degradation for each of the

processing units

1111, 1112, and 1113. It is. Therefore, it is possible to detect the replacement time of the module or the failure of the module based on the history information. Here, for such a purpose, for example, history information may be collected at time intervals selected from one day, one week, one month, and the like.

As shown in FIG. 3, the history information is collected by the management unit 24. Although the management unit 24 can be provided in the control unit 20, since the control unit 20 is basically provided for each water treatment system 10, when the management unit 24 is provided in the control unit 20, Only history information relating to a single water treatment system 10 can be collected. Therefore, in the configuration example shown in FIG. 3, the management unit 24 is provided in the server 30 that communicates with the control unit 20 through an electric communication line 33 such as an Internet line or a mobile communication network. The server 30 includes a storage unit 31 that collects and stores history information. Furthermore, the first processing unit 111 and the second processing unit 112 are deteriorated using the history information stored in the storage unit 31. A monitoring unit 32 for determining the degree is provided. That is, the storage unit 31 and the monitoring unit 32 constitute the management unit 24. From the above, the storage unit 31 stores history information. Specifically, the storage unit 31 stores history information collected through the telecommunication line 33.

When the configuration shown in FIG. 3 is adopted, it is desirable that the history information includes information on the geographical position of the place where the water treatment system 10 (that is, the treatment unit 11) is installed. Articles such as consumables are prepared in advance and delivered to the water treatment system 10 in which the performance of the processing unit 11 has deteriorated due to the history information including geographical location information. It becomes possible.

For example, in areas where it is not easy to secure the water source 42, it is often difficult to obtain articles such as consumables. On the other hand, in the configuration shown in FIG. 3, the server 30 disposed far from the water treatment system 10 includes the management unit 24 to monitor the necessity of articles such as consumables. It becomes possible to cooperate with the business that delivers the goods. That is, it can be expected that the water treatment system 10 is not only used at the time of introduction but also used for a long time by exchanging consumables and the like.

As in the configuration examples shown in FIGS. 1 and 2, by performing reprocessing for improving the quality of wastewater, the amount of wastewater to be discarded can be greatly reduced. As a result, even in an area where labor is required to secure the water source 42, the amount of new water introduced from the water source 42 can be reduced, and the availability of available water is facilitated.

As described above, since the use of water is distributed according to the components contained in the water before use, water that is not suitable for drinking can be used for other purposes. In addition, depending on the components of the waste water, the second processing unit 112 performs reprocessing to improve the water quality, so that the waste water can be reused. That is, it becomes possible to reduce the amount of water discarded in the unit period among the water introduced from the water source 42, and as a result, the water use efficiency increases. In addition, since the water quality other than drinking is suppressed to a low level, the configuration of the processing unit 11 is simplified, and the life of the processing unit 11 may be increased.

The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made according to design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it can be changed.

Claims

A first sensor for monitoring a component contained in water before use;
A second sensor for monitoring components contained in the wastewater after use;
A treatment unit that removes at least a part of the components contained in the wastewater to improve water quality;
A distribution unit that distributes the use of water to one of a plurality of uses based on the component detected by the first sensor;
A switching unit that switches a path of whether the wastewater is delivered to the processing unit and reprocessed or the wastewater is discarded;
Control for controlling the switching unit based on the component information of the wastewater detected by the second sensor and providing the processing unit with information on the water quality improvement when the reprocessing of the wastewater is performed. And a water treatment system.
The processor is
It is configured to remove specific components from the raw water collected from the water source for use and the waste water,
The water treatment system according to claim 1, wherein the first sensor monitors a component contained in water before being used after the water quality is improved by the treatment unit.
A third sensor for monitoring the quality of the raw water;
The processor is
A first processing unit configured to remove a specific component contained in the raw water;
A second treatment unit configured to remove a specific component contained in the wastewater,
The water treatment system according to claim 2, wherein the first treatment unit performs the water quality improvement by combining the water after the retreatment of the wastewater by the second treatment unit and the raw water.
4. The information processing apparatus according to claim 1, further comprising: a management unit that collects history information in which information about the component detected by the first sensor and the second sensor is associated with a date and time when the information is acquired. The water treatment system according to item.
The history information includes a geographical position of a place where the processing unit is provided,
The management unit
Provided in a server for collecting the history information through a telecommunication line,
The server
A storage unit for collecting and recording the history information through the telecommunication line;
The water treatment system according to claim 4, further comprising: a monitoring unit that monitors the performance of the processing unit using the history information recorded in the storage unit.
A program for causing a computer to function as the control unit used in the water treatment system according to any one of claims 1 to 5.