WO2016035237A1 - Capteur de qualité d'eau et système de traitement d'eau - Google Patents

Capteur de qualité d'eau et système de traitement d'eau Download PDF

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Publication number
WO2016035237A1
WO2016035237A1 PCT/JP2015/003412 JP2015003412W WO2016035237A1 WO 2016035237 A1 WO2016035237 A1 WO 2016035237A1 JP 2015003412 W JP2015003412 W JP 2015003412W WO 2016035237 A1 WO2016035237 A1 WO 2016035237A1
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Prior art keywords
water
water quality
inspection
level
unit
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PCT/JP2015/003412
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English (en)
Japanese (ja)
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ハリーシュ プティーヤ ヴィーティル
伸 真継
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パナソニックＩｐマネジメント株式会社
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Publication of WO2016035237A1 publication Critical patent/WO2016035237A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water

Definitions

  • the present invention generally relates to a water quality sensor, a water treatment system, and more particularly to a water quality sensor for evaluating the quality of water to be inspected, and a water treatment system using the water quality sensor.
  • a water quality sensor is necessary to objectively recognize whether or not the water that can be collected is available.
  • Various configurations for measuring turbidity, pH, components contained in water, and the like are known for water quality sensors.
  • a water quality sensor that includes a light emitting element and a light receiving element and that determines the transmittance of water to be inspected has been proposed (see, for example, Document 1 “Japanese Patent Publication No. 2011-22083”).
  • Document 1 describes that the higher the concentration of nitrate ions, the more the ultraviolet light is absorbed, and the higher the suspended matter and biochemical oxygen demand, the stronger the attenuation of near-infrared light.
  • the quality of water is judged step by step by changing the emission intensity stepwise and making a determination using the same threshold for the received light intensity.
  • Reference 1 The technology described in Reference 1 is based on a step-by-step decision on the quality of water, whether specific control items (nitrate ion concentration, suspended solids, biochemical oxygen demand, etc.) related to water quality. Yes. For this reason, there is a problem that the user does not know how to handle the water even if the result obtained by the water quality sensor is known.
  • the present invention aims to provide a water quality sensor that makes it possible to understand how to handle water from the results, and also to provide a water treatment system that can increase the efficiency of water use.
  • a water quality sensor includes a laboratory that introduces water to be inspected, and a classification that classifies water quality levels according to the use of the water introduced into the laboratory based on water quality management items. And a display unit for displaying the water quality level classified by the classification unit.
  • a water treatment system includes a first water channel for flowing domestic waste water, a separation device that introduces the domestic waste water through the first water channel, and distributes the destination of the domestic waste water among a plurality of destinations.
  • a plurality of second water channels for flowing water taken out from the separation device for each destination a water quality sensor for classifying the water quality level of the domestic wastewater based on water quality management items, and the water quality sensor classified Based on the water quality level of domestic wastewater, the destination of the domestic wastewater is determined from among the plurality of destinations, and water is taken out from the separation device to a second waterway corresponding to the destination among the plurality of second waterways
  • a control unit for controlling the separation device.
  • the water quality level indicating the availability of water is shown to the user, not the measurement value of the management item. Convenience that you can know immediately what to handle.
  • a water quality sensor for evaluating the water to be inspected will be described, and further, a water treatment system for using domestic wastewater without waste will be described.
  • the water quality sensor described below can be used alone, or the water quality sensor can be configured to be used by being incorporated in a water treatment system.
  • the water quality sensor can be used by being incorporated in another system that is not a water treatment system.
  • the water quality sensor is assumed to be used for the purpose of monitoring the quality of domestic water, but it can also be used for the purpose of monitoring the quality of water used for plant growth such as irrigation water.
  • the water used for plant cultivation may be water used in a building like an agricultural factory.
  • the water treatment system described below is assumed to be used in buildings such as houses, apartment houses, office buildings, and commercial buildings.
  • the water treatment system can also be used when well water, river water, or rain water is shared as water for daily use in a village.
  • the water quality sensor 10 includes a container 11 in which main hardware elements are stored, and a probe 12 protruding from a part of the container 11.
  • the probe 12 is formed in a cylindrical shape having a hollow inside, and one or more holes 121 are formed in a part of the outer wall. Therefore, water is introduced into the probe 12 through the one or more holes 121 by immersing the one or more holes 121 of the probe 12 in the water to be inspected.
  • the probe 12 is provided with a plurality of holes 121. With this configuration, when the probe 12 is immersed in water, water can easily enter the inside. The water is drained quickly.
  • at least one of the holes 121 is desirably formed in the distal end surface of the probe 12.
  • the probe 12 includes in the internal space an examination room 120 into which water is introduced and a sensing unit 131 that monitors a plurality of management items related to water quality.
  • the sensing unit 131 performs evaluation for each management item on the water introduced into the examination room 120.
  • the management items are mainly the types of components contained in water and the concentrations for each type of components, but various indicators representing water quality may be included in the management items.
  • the components in the management items include compounds in addition to elemental elements, and may include organisms such as bacteria.
  • a reference value for the concentration or content rate is determined for each component, and the use of the corresponding water is determined according to the type of component and the concentration or content rate of the component (hereinafter referred to as “concentration”).
  • the component included in the management item is selected from, for example, nitrogen compounds, ammonia, heavy metals, organic compounds, and the like.
  • management items include turbidity, chromaticity, odor, hydrogen ion concentration index (pH), electrical conductivity, dissolved oxygen amount (DO: Dissolved Oxygen), chemical oxygen demand (COD). : Chemical (Oxygen) Demand).
  • the content of the management item described above is an example, and the content of the management item is appropriately selected according to the sampling location of the water to be inspected. For example, in areas where groundwater or surface water is expected to contain substances that can cause serious health damage if ingested by humans, such as arsenic, mercury, and cadmium, this type of ingredient needs to be closely monitored. There is.
  • the sensing unit 131 extracts quantified information for each management item selected according to the water collection location. That is, the sensing unit 131 is configured to obtain at least two levels of measurement values for each management item.
  • the concentration can be measured with relatively high accuracy. It is sufficient if the result is obtained.
  • these components cannot be used for any purpose as long as they are contained at a concentration higher than a specified value, and these components cannot be removed by simple water treatment. Therefore, for this type of component, it is only necessary to obtain an output that distinguishes whether the concentration is greater than or less than the reference value from the sensing unit 131.
  • turbidity, ammonia, surfactant, bacteria, pH, etc. can be handled by simple water treatment selected from filtration, adsorption, ion exchange, pH adjustment, fermentation (septic tank) and the like.
  • water treatment selected from filtration, adsorption, ion exchange, pH adjustment, fermentation (septic tank) and the like.
  • the sensing unit 131 can be configured using a test paper, and an electrochemical pH sensor can be used. Further, for the turbidity, the dissolved oxygen amount, and the like, an optical sensor can be employed in the sensing unit 131.
  • the relationship between the management items described above and the configuration example of the sensing unit 131 is an example, and the configuration of the sensing unit 131 is appropriately selected according to the purpose.
  • the sensing unit 131 constitutes a part of the classification unit 13.
  • the classification unit 13 includes a processing unit 130 that classifies the water quality level using the measurement result for each management item output from the sensing unit 131 (see FIG. 1).
  • the water quality level is classified into two or more stages, preferably three or more stages.
  • the classification unit 13 classifies the drinking water level into a drinking level that can be used for drinking and a non-drinking level that cannot be used for drinking.
  • the classification unit 13 makes a non-drinking level a regeneration level that can be used for some purposes by a regeneration process in the water purifier and a drainage level that is not suitable for the regeneration process in the water purifier. And classify.
  • the drainage level is a level that requires advanced purification treatment as in a sewage treatment plant, and means a water quality level that is difficult to regenerate with a simple water purification device used in a house or the like.
  • Wastewater level water may contain solids and may contain components that cannot be removed by the water purifier. Specific examples of the water quality level will be described later.
  • the classification unit 13 classifies the water quality level by combining the conditions determined for each management item in order to classify the water quality level using the measurement results regarding the plurality of management items given from the sensing unit 131.
  • a case where the water quality level is classified into three stages of a good level, an intermediate level, and a defective level will be described as an example.
  • the good level, the intermediate level, and the bad level are associated with, for example, a drinking level, a regeneration level, and a drainage level.
  • the classifying unit 13 classifies the management level into a defect level without evaluating other management items. Moreover, the classification
  • the water quality level classified by the classification unit 13 is displayed on the display unit 14.
  • the display unit 14 includes three display areas 141, 142, and 143 corresponding to “good”, “intermediate”, and “bad”. That is, the display unit 14 represents the water quality level classified by the classification unit 13 by one of the three display areas 141, 142, and 143. Now, it is assumed that the display unit 14 is configured so that lighting and extinguishing can be selected for each of the display areas 141, 142, and 143.
  • the display unit 14 turns on one display region (for example, the display table region 141) corresponding to the water quality level classified by the classification unit 13 among the display regions 141, 142, and 143, and other display regions (for example, The display areas 142 and 143) are turned off.
  • one display region for example, the display table region 141
  • other display regions for example, The display areas 142 and 143
  • lighting means that one display area (for example, the display area 141) corresponding to the water quality level classified by the classification unit 13 among the display areas 141, 142, and 143 is easily visible. Accordingly, lighting is appropriately selected from display states such as a display for enhancing brightness, a highlighted display, a display with a mark, and a display for changing a color.
  • the display unit 14 may include a display unit 144 that performs color display and a display control unit 145 that controls the operation of the display unit 144.
  • the display control unit 145 displays a color according to the water quality level.
  • the display areas 141, 142, and 143 may be distinguished by three colors such as green, yellow, and red, for example. Since red is easily recognized as a dangerous color, the water quality level is intuitively recognized when green is associated with a good level, yellow with an intermediate level, and red with a defective level.
  • the display device 144 it is not essential for the display device 144 to include the three display areas 141, 142, and 143, and the number of display areas can be appropriately changed according to the type of water quality level classified by the classification unit 13. For example, if the water quality level classified by the classification unit 13 is two stages, it may be divided into two display areas. In this case, the two display areas may be distinguished by, for example, two colors of red and green.
  • the sensing unit 131 is configured to output multi-stage measurement results for water quality management items, as shown in FIG. 3, the water quality transition with time for this management item is displayed in a graph. You may make it do.
  • the illustrated example represents the annual water quality transition (characteristic A1) for this management item relating to groundwater or river water.
  • the graph is provided with zones Z1, Z2, and Z3 for classifying the water quality level, and the water quality level is classified according to which zone Z1, Z2, and Z3 the measurement result of the sensing unit 131 belongs to. .
  • the zone Z1 corresponds to the display area 141 and represents a good level
  • the zone Z2 corresponds to the display area 142 and represents an intermediate level
  • the zone Z3 corresponds to the display area 143 and has a defect level. It represents that.
  • the storage unit provided in the water quality sensor 10 requires a relatively large storage capacity, and the display unit 14 However, a display 144 having a relatively high resolution is required. That is, the cost of the water quality sensor 10 increases.
  • the water quality sensor 10 includes a communication unit 15 (see FIG. 1) that performs wireless communication using radio waves as a medium.
  • the communication unit 15 can employ a configuration in which the communication unit 15 is directly connected to an electric communication line such as the Internet.
  • an electric communication line such as the Internet.
  • a relatively large amount of power is required, and it is difficult to monitor the water quality over a long period of time.
  • the communication unit 15 is configured to be able to communicate with a terminal device selected from a smartphone, a tablet terminal, a personal computer, and the like.
  • This type of terminal device may have a function of performing short-range wireless communication using radio waves as a transmission medium.
  • a terminal device selected from a smartphone, a tablet terminal, a personal computer, and the like.
  • This type of terminal device may have a function of performing short-range wireless communication using radio waves as a transmission medium.
  • necessary data is taken into the terminal device from the water quality sensor 10, and transmitted from the terminal device to an appropriate web server or cloud computing system to accumulate water quality data. That's fine. If the data stored in the web server or the cloud computing system is downloaded by the terminal device, a graph as shown in FIG. 3 can be displayed on the screen of the terminal device.
  • the water quality sensor 10 since the amount of information stored in the water quality sensor 10 is reduced, the water quality sensor 10 does not need a large-capacity storage unit, and the water quality sensor 10 does not need to display a graph. Does not require the high-resolution display 144.
  • the above-described configuration example is an example.
  • whether or not it is necessary to boil as drinking may be classified depending on the water to be inspected.
  • bacteria will temporarily increase and drinking raw water May not be suitable.
  • This type of water is usually available for drinking if boiled and sterilized. Therefore, if the water quality sensor 10 that classifies whether or not it is necessary to boil water can be used, safe water can be used for drinking.
  • the water quality level may be indicated for each water quality management item. That is, even if the water quality level is displayed for a plurality of management items on the display device 144, or the water quality levels of different management items are displayed on the plurality of display devices 144 as shown in FIG. Good.
  • the illustrated example illustrates a configuration in which two management items are displayed on one display unit 144, and the dissolved oxygen amount (DO) and nitrate ion (NO3) are shown as the management items. In this configuration, the water quality level related to the dissolved oxygen amount and the water quality level related to nitrate ions are displayed.
  • DO dissolved oxygen amount
  • NO3 nitrate ion
  • the water quality sensor 10 is configured in one of a batch type that obtains the water quality level of the water to be inspected once and a continuous type that continuously obtains the water quality level of the water to be inspected.
  • the batch type after water to be inspected is introduced into the inspection room 120 and the water quality level is obtained, the water is discharged from the inspection room 120. That is, it is configured such that water is introduced into the examination room 120 every time water quality examination is required.
  • the continuous type introduction and discharge of water into the examination room 120 are continuously performed.
  • the continuous water quality sensor 10 maintains a state in which the probe 12 is immersed in water to be inspected.
  • the time interval for obtaining the water quality level is appropriately set by the user. This time interval is measured by a built-in clock, which will be described later, and the time interval is set by communication through the communication unit 15 with a terminal device such as a smartphone, a tablet terminal, or a personal computer.
  • the configuration of the sensing unit 131 differs depending on whether the water quality sensor 10 is a batch type or a continuous type, and the configuration of the sensing unit 131 also varies depending on the water quality management items.
  • the principle that the sensing unit 131 measures water quality can be roughly classified into one of a physical method, a chemical method, and a biological method.
  • sensing unit 131 As a physical method, a technique for measuring the type and concentration of a component contained in a test object by spectroscopic analysis is known. That is, if the absorptance for each wavelength is measured for light including a plurality of wavelengths, the types and concentrations of the components included in the test object are measured.
  • the sensing unit 131 is optical, even if a camera attached to a terminal device such as a smartphone or a tablet terminal is used, a light emitting unit and an application program (so-called application) are separately prepared and water quality is inspected. Good.
  • This type of sensing unit 131 includes an interface unit for connecting to a terminal device. The interface unit may be wired or wireless. Also, it is desirable to provide a separate power source so as not to consume battery power that is the power source of the terminal device.
  • the physical method it is also possible to monitor the type and concentration of a component contained in an inspection object using an ion-sensitive field effect transistor. As described above, when the spectroscopic analysis or the ion-sensitive field effect transistor is used, the type and concentration of the component included in the inspection target are converted into an electrical physical quantity. In addition, it is possible to electrochemically convert the types and concentrations of the components included in the test object into electrical physical quantities.
  • an inspection region 132 is provided that holds a substance that changes color according to the type and concentration of the component by reacting with the component contained in water.
  • the sensing unit 131 is configured using the inspection base material 133. That is, the substance held by the inspection base material 133 is selected so as to exhibit a color having a different hue depending on whether or not the corresponding component is included, and to change the lightness or saturation depending on the concentration of the component. .
  • the management item is an index of only the component concentration, such as pH, a substance whose hue changes according to the concentration may be used.
  • This type of inspection base material 133 has a card shape and is formed with an inspection region 132.
  • the inspection region 132 is preferably divided into a plurality of sections holding substances that react with different components. That is, when the water corresponding to each section is included in the water to be inspected, the color of the corresponding section changes.
  • the inspection base material 133 can be taken out from the inspection room 120 after being introduced into the inspection room 120.
  • the inspection base material 133 may be formed in a tape shape or a ribbon shape.
  • a plurality of inspection regions 132 are formed side by side along the longitudinal direction.
  • Each inspection region 132 is preferably divided into a plurality of sections holding substances that react with different components, like the card-type inspection substrate 133.
  • the inspection base material 133 is, for example, wound on a bobbin (core) and accommodated in a cartridge capable of pulling out only the end portion (configuration similar to a 135 film film cartridge).
  • the inspection substrate 133 is pulled out from the cartridge for each inspection region 132, and is taken out from the inspection chamber 120 after the inspection region 132 is introduced into the inspection chamber 120.
  • the inspection base material 133 is provided with perforations and the like at appropriate locations, and the inspection region 132 drawn out from the cartridge can be easily separated from the remaining inspection regions 132.
  • the timing for separating the inspection area 132 introduced into the inspection room 120 from the remaining inspection area 132 may be before or after the inspection area 132 is introduced into the inspection room 120.
  • the inspection base material 133 may have a tape shape or a ribbon shape, and may be formed in an endless shape (annular shape). Also in this configuration, a plurality of inspection regions 132 are formed side by side. However, the individual inspection areas 132 are not separated from the other inspection areas 132, and when one inspection area 132 is drawn into the inspection room 132 after being introduced into the inspection room 120, the other inspection area is transferred to the inspection room 120. 132 is configured to be able to be introduced.
  • the dimension between a pair of adjacent inspection regions 132 is the feed width of the inspection base material 133 or is set to be twice or more the feed width.
  • one inspection region 132 is taken out from the inspection room 120 and at the same time, the next inspection region 132 is introduced into the inspection room 120.
  • the next inspection region 132 is sent by further feeding the inspection base material 133. Is introduced into the examination room 120.
  • the inspection base material 133 shown in FIG. 6 is endless, and the inspection region 132 cannot be physically separated. Therefore, a reproduction unit that regenerates the substance in the examination region 132 so that it can be reused in preparation for the next introduction into the examination chamber 120 while the examination region 132 is pulled out of the examination room 120. 134 is provided.
  • the regeneration method in the regeneration unit 134 is appropriately selected from a configuration using a chemical reaction, a configuration using light or heat having an appropriate wavelength, and the like according to the substance in the examination region 132.
  • a microorganism sensitive to a component contained in water to be examined may be used, and at least one of the type and concentration of the component may be measured.
  • a microorganism that changes its color by taking in a specific component contained in the water to be inspected is confined in a microcapsule having micropores that allow the corresponding component to pass through and cannot pass through the microbe, and this microcapsule is inspected.
  • a configuration held on a material can be employed.
  • the sensing unit 131 when the measurement result of the management item is obtained as a change in color as in the chemical method or the biological method, as shown in FIG. A recording medium 135 on which the standard state of the corresponding color is recorded is provided.
  • the recording medium 135 can use a printed matter in which the standard state of the color corresponding to the type and density of the reacted component is printed for the inspection region 132.
  • the printed matter also shows the water quality level according to the type and concentration of the components. Therefore, the user can know the water quality level of the water to be inspected by finding a color substantially matching the color of the inspection area 132 from the recording medium 135 and confirming the water quality level to which the corresponding color belongs. That is, in this configuration, it can be said that the recording medium 135 also serves as the display unit 14.
  • the classification unit 13 includes a color sensor 136 that extracts color information from the inspection area 132 and the recording medium 135, and a processing unit 130 that classifies the water quality level by comparing the color information extracted by the color sensor 136.
  • the inspection base material 133 and the color sensor 136 correspond to the sensing unit 131.
  • the color sensor 136 is configured using two or more photodiodes that receive light through filters having different wavelength selectivity.
  • the color sensor 136 may be configured by a linear type or area type image sensor.
  • a storage unit 137 may be used instead of the recording medium 135 as shown in FIG.
  • the storage unit 137 stores in advance a standard state of data obtained from the color sensor 136 when a color corresponding to a component included in water to be examined is detected. That is, the storage unit 137 stores color standard states corresponding to components contained in water, and the standard states stored in the storage unit 137 are classified according to the water quality level.
  • the processing unit 130 compares the data including color information obtained by the color sensor 136 with the standard state stored in the storage unit 137, and extracts the water quality level corresponding to the corresponding standard state. Classify the water quality level of the target water.
  • a measurement unit 138 that measures the type and concentration of components contained in water and converts them into electrical physical quantities may be used as shown in FIG.
  • this type of measuring unit 138 has a configuration using an ion-sensitive field effect transistor and a configuration using an electrochemical technique. The latter is well known in pH sensors and the like.
  • the configuration example illustrated in FIG. 9 includes a light source 151 that outputs light irradiated to the examination room 120 and a light receiving unit 152 that receives light from the examination room 120.
  • This configuration is configured to convert the type and concentration of the component into an electrical physical quantity (light reception output) by using the light absorption rate.
  • the light absorptance is obtained for each wavelength of light. That is, it is configured to measure the type and concentration of components contained in water by spectroscopic analysis.
  • the configuration of the sensing unit 131 described above is an example, and the sensing unit 131 having an appropriate principle is configured according to the water quality management item and the type of water to be inspected.
  • the inspection chamber 120 is provided in the probe 12.
  • the inspection chamber 120 supplies a small amount of water (for example, 0.1 to 1 mL: L is liter). It may be a container.
  • the shape of the container is selected from a box shape, a dish shape, and the like.
  • the processing unit 130 described above uses a device including a processor that operates according to a program as a main hardware element.
  • This processor is used together with a memory, an interface device and the like to constitute a computer.
  • the processor may be a microcomputer integrated with a memory, an interface, and the like.
  • 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.
  • the program is provided using a computer-readable recording medium.
  • Water treatment system The water treatment system described below is configured so that a part of domestic wastewater can be reused by a simple purification treatment. In this water treatment system, it is determined whether or not domestic wastewater is suitable for purification treatment, and water suitable for purification treatment is purified so that it can be reused.
  • Water purification equipment that purifies domestic wastewater is a simple and inexpensive configuration that filters fine impurities with sand, adsorbs odorous components with activated carbon, and removes bacteria with an ultrafiltration membrane. It is selected from the structure etc. which perform.
  • the domestic wastewater is, for example, wastewater used for cleaning cooking materials, washing dishes, washing surfaces, washing, baths, and the like, and does not include toilet flushing water for stool.
  • the water from which cooking ingredients such as vegetables have been washed may contain agrochemical ingredients, and the water from which dishes have been washed may contain oils, acetic acid, citric acid, and the like. Therefore, this type of domestic wastewater may not be suitable for reprocessing with a water purifier. That is, domestic wastewater used for individual purposes must be introduced into a water purifier when the water quality level is evaluated and the wastewater level is not reached. Moreover, a surfactant is contained in a part of domestic wastewater used for the purpose of washing dishes, washing, washing, bathing and the like. Since the surfactant is difficult to remove with the water purifier as described above, this type of domestic wastewater may not be suitable for the water purifier.
  • the use of water after purification by the water purifier is assumed to be flushing toilets, washing automobiles, washing floors or outer walls of houses, watering plants, etc. Since the water used for flushing the toilet bowl is allowed to be turbid or the like unless solids are contained, it is possible to cope with the minimum water quality level even in the water purified by the water purifier. Further, water used for washing automobiles has a higher water quality level than water used for washing toilet bowls, and a small amount of surfactant may remain if there is no odor. The same is true for the cleaning of residential floors or exterior walls, but surfactant residues are undesirable in these applications. It is desirable that the water used for watering the plants has a higher water quality level, but organic matter remains.
  • the water treatment system illustrated in FIG. 10 includes a first flow channel 21 (first water channel) through which domestic wastewater flows for each discharge source.
  • the 1st flow path 21 has the drainage channel 211 which flows the domestic wastewater used for the bath, the drainage channel 212 which flows the domestic wastewater used for the wash surface, and the drainage channel 213 which flows the domestic wastewater used for washing, Is provided.
  • the drainage channels 211, 212, and 213 are all formed in a tubular shape.
  • the water quality sensor 101 is disposed in the drainage channel 211
  • the water quality sensor 102 is disposed in the drainage channel 212
  • the water quality sensor 103 is disposed in the drainage channel 213.
  • the management items of the water quality sensors 101, 102, and 103 may be different, it is assumed here that the same management item is measured.
  • the water quality sensors 101, 102, 103 are, for example, pH, iron, manganese, nitrate ion (NO3), electric conductivity (EC: Electrical Conductivity), dissolved oxygen amount (DO: Dissolved Oxygen), redox potential (ORP: Oxidation).
  • -reduction is a management item. From the water quality sensors 101, 102, 103, information on the water quality level of domestic wastewater passing through the drainage channels 211, 212, 213 is output. The outputs of the water quality sensors 101, 102, 103 are input to the control unit 20.
  • valves 221, 222, and 223 as the separation device 22 are disposed in the drainage channels 211, 212, and 213.
  • the valve 221 selects whether domestic wastewater passing through the drainage channel 211 is sent to the water purification device 23 or discarded.
  • the valve 222 selects whether the domestic wastewater that passes through the drainage channel 212 is sent to the water purifier 23 or is discarded, and the valve 223 sends the domestic wastewater that passes through the drainage channel 213 to the water purifier 23 or is discarded.
  • the domestic wastewater to be discarded is sent as sewage to the sewage treatment plant 25 through the sewage channel 24 (second water channel).
  • the domestic wastewater sent to the water purifier 23 is purified through the water purifier 23 and reused through the second flow path 26 (second water channel).
  • the second flow path 26 includes a water supply path 261 that supplies water for cleaning toilets, a water supply path 262 that supplies water for cleaning automobiles, and a water supply path 263 that supplies water for cleaning houses. And a water supply channel 264 for flowing water for watering the plant.
  • the water supply channels 261, 262, 263, and 264 are all formed in a tubular shape.
  • a water quality sensor 104 is disposed at the outlet of the water purifier 23, and the output of the water quality sensor 104 is input to the control unit 20.
  • bulb 271 as the separation apparatus 27 for distributing the destination of the water from the water purifier 23 to one of the water supply paths 261, 262, 263, 264 is disposed at the outlet of the water purifier 23.
  • the control unit 20 controls the separation devices 22 and 27 based on the outputs of the water quality sensors 101, 102, 103, and 104, and determines the destination of water according to the water quality.
  • the separation device 22 sorts whether domestic wastewater before being introduced into the water purification device 23 is discarded or regenerated so that it can be reused by the water purification device 23. Further, the water purified by the water purifier 23 is sorted according to use by the separator 27 according to the water quality level detected by the water quality sensor 104. Water used for cleaning the toilet bowl is discarded in the sewer 24. In the illustrated example, water used for other purposes penetrates the ground or evaporates and disappears.
  • the water purifier 23 is used.
  • the water purifier 23 may be distributed for each use without using the water purifier 23 for each type of domestic wastewater.
  • it can be used for washing foods or for spraying drainage from a bathtub to plants, and water used for rinsing laundry can be used as toilet flushing water.
  • the control unit 20 described above uses a device including a processor that operates according to a program as a main hardware element.
  • This processor is used together with a memory, an interface device and the like to constitute a computer.
  • the processor may be a microcomputer integrated with a memory, an interface, and the like.
  • 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.
  • the program is provided using a computer-readable recording medium.
  • the water treatment system of this embodiment includes a plurality of first water channels (first flow channels 21), a separation device 27, a plurality of second water channels (second flow channels 261, 262, 263, 264), and water quality.
  • a sensor 104 and a control unit 20 are provided.
  • Each of the plurality of first water channels flows domestic waste water.
  • the separator 27 receives domestic wastewater through the plurality of first water channels, and distributes the destination of the domestic wastewater among the plurality of destinations.
  • the plurality of second water channels flow the water extracted from the separation device 27 for each destination.
  • the water quality sensor 104 classifies the water quality level of domestic wastewater based on water quality management items.
  • the control unit 20 determines the destination of domestic wastewater among a plurality of destinations based on the water quality level of domestic wastewater classified by the water quality sensor.
  • the control unit 20 controls the separation device 27 so that the water taken out from the separation device 27 flows in the second water channel corresponding to the destination among the plurality of second water channels.
  • the water quality sensor 10 includes an examination room 120, a classification unit 13, and a display unit 14. Water to be inspected is introduced into the inspection room 120.
  • the classification unit 13 classifies the water quality level according to the use of the water introduced into the examination room 120 based on the water quality management items.
  • the display unit 14 displays the water quality level classified by the classification unit 13.
  • the classification unit 13 classifies the water quality level based on the water quality management item, for example, it is distinguished whether it is suitable for drinking or can be used by regeneration processing even if it is not drinking. It becomes possible. And the user can know directly the classified water quality level by the display content of the display part 14. In other words, the user is presented with a water quality level that represents the availability of water, not the measured value of the control item, and the user can easily find out how to handle the water to be tested. It is done.
  • the display unit 14 includes a display unit 144 that performs color display, and a display control unit 145 that displays the water quality level on the display unit 144 in different colors. It is desirable to provide.
  • the water quality level is indicated by a color, the water quality level can be known even when characters cannot be recognized.
  • the communication unit 15 that wirelessly transmits the information on the water quality level classified by the classification unit 13 in the first aspect or the second aspect.
  • the communication unit 15 can notify the other device of the water quality level obtained by the water quality sensor 10. Therefore, by using a terminal device that can communicate with the water quality sensor 10, the water quality level measured by the water quality sensor 10 can be analyzed by another device.
  • the communication unit 15 is configured to communicate with a terminal device such as a smartphone or a tablet terminal, it is possible to collect water level data using the terminal device. In addition, it is possible to collect water quality data without installing the water quality sensor 10 in many places and moving the water quality sensor 10.
  • the classification unit 13 sets the water quality level to a drinking level that can be used for drinking, and to drinking. It is desirable to classify it as a non-drinkable level that is not available.
  • the classification unit 13 sets the water quality level to the drinking level, the regeneration level, and the drainage. It may be classified into levels.
  • the quote level is a level that can be used for drinking
  • the regeneration level is a level that cannot be used for drinking and can be used by the regeneration process in the water purifier 23.
  • the drainage level is a level that cannot be used for drinking and is not suitable for the regeneration treatment in the water purifier 23.
  • the classification unit 13 May include an inspection substrate 133 and a recording medium 135.
  • the inspection base material 133 holds a substance whose color changes according to at least one of the type and concentration of components contained in water.
  • the recording medium 135 records a standard state of a color corresponding to a component contained in water, and the standard state is classified according to a water quality level.
  • the display unit 14 is also used as the recording medium 135.
  • the water quality level can be classified simply by bringing the inspection base material 133 into contact with the water to be inspected and comparing it with the standard state of the color indicated on the recording medium 135.
  • the water quality sensor 10 of the seventh aspect according to the present invention is the classification unit 13 when the management item is the kind and concentration of the component contained in water in any of the first to fifth aspects.
  • the inspection base material 133 holds a substance whose color changes according to at least one of the type and concentration of components contained in water.
  • storage part 137 memorize
  • the color sensor 136 reads the color of the inspection base material 133 after the inspection base material 133 is introduced into the inspection room 120.
  • the processing unit 130 classifies the water quality level of the water by comparing the color read by the color sensor 136 with the storage unit 137. In this configuration, the display unit 14 displays the results classified by the processing unit 130.
  • the water quality level is objectively determined by simply bringing the inspection base material 133 into contact with the water to be inspected and detecting the color of the inspection base material 133 with the color sensor 136.
  • the inspection base material 133 is configured to include an inspection region 132 holding a substance.
  • the inspection base material 133 is taken out from the inspection chamber 120 after the inspection region 132 is introduced into the inspection chamber 120.
  • the inspection base material 133 is formed by arranging a plurality of inspection regions 132, and a substance is provided for each inspection region 132. It may be configured to hold.
  • the inspection base material 133 may be configured such that the inspection region 132 is separated from the remaining inspection regions 132.
  • the inspection base material 133 is taken out from the inspection chamber 120 after being introduced into the inspection chamber 120 for each inspection region 132.
  • the inspection base material 133 can be provided at a low price without requiring a complicated configuration because the water quality level can be known simply by introducing the inspection base material into the inspection room 120 and taking it out and checking the color. is there.
  • the water quality sensor 10 according to the tenth aspect of the present invention is the inspection substrate 133 according to the sixth aspect or the seventh aspect, in which a plurality of inspection regions 132 are formed side by side, and each of the inspection regions 132 has a substance. Holding.
  • the inspection base material 133 may be configured such that the inspection region 132 taken out from the inspection room 120 is reintroduced into the inspection room 120.
  • the water quality sensor 10 includes a regeneration unit 134 that returns the substance held in the examination region 132 taken out from the examination room 120 to a reusable state so that the examination region 132 can be introduced into the examination room 120 again.
  • the inspection base material 133 can be reused, the inspection base material 133 can be used over a long period of time.
  • the inspection region 132 is divided into a plurality of sections, and the substance whose color changes according to the component that is a management item for each section Is desirable to be retained.
  • the inspection area 132 according to the eleventh aspect preferably includes a section corresponding to two or more types of components.
  • the classification unit 13 May include a processing unit 130, a storage unit 137, and a measurement unit 138.
  • the measurement part 138 measures the kind and density
  • storage part 137 memorize
  • the processing unit 130 classifies the water quality level of the water by comparing the type and concentration of the component measured by the measuring unit 138 with the storage unit 137. In this configuration, the display unit 14 displays the results classified by the processing unit 130.
  • the measurement unit 138 measures the type and concentration of the components contained in water by spectroscopic analysis.
  • the water quality level can be classified without contact with the water to be inspected.
  • a water treatment system includes a first water channel (first flow channel 21), a separation device (separation device 22 or separation device 27), and a plurality of second water channels (sewer channel 24, A second flow path 26), water quality sensors 101, 102, 103, 104 and a control unit 20 are provided.
  • the first water channel flows domestic waste water.
  • the separation device introduces domestic wastewater through the first water channel, and distributes the destination of domestic wastewater among a plurality of destinations.
  • the plurality of second water channels flow the water extracted from the separation device for each destination.
  • the water quality sensors 101, 102, 103, and 104 classify the water quality level of domestic wastewater based on water quality management items.
  • the control unit 20 determines the destination of domestic wastewater among a plurality of destinations based on the water quality level of domestic wastewater classified by the water quality sensor.
  • the control unit 20 controls the separation device so that the water taken out from the separation device flows in the second water channel corresponding to the destination among the plurality of second water channels.
  • This configuration makes it possible to reuse domestic wastewater according to the water quality level classified by the water quality sensors 101, 102, 103, and 104, thereby increasing the water use efficiency.
  • the separation apparatus may be capable of selecting a usage destination for reusing water and a disposal destination for discarding water as destinations. desirable.
  • the separation device uses the quality of the domestic wastewater introduced from the first water channel (the first channel 21). It is desirable to provide a water purifier 23 that is improved and removed.

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  • Food Science & Technology (AREA)
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  • Hydrology & Water Resources (AREA)
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  • Water Supply & Treatment (AREA)
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Abstract

La présente invention permet à un utilisateur de comprendre directement comment utiliser de l'eau. Un capteur (10) de qualité d'eau est pourvu d'une chambre d'inspection (120), d'une unité de classification (13), et d'une unité d'affichage (14). De l'eau devant être inspectée est introduite dans la chambre d'inspection (120). L'unité de classification (13) classe le niveau de qualité d'eau de l'eau introduite dans la chambre d'inspection (120) par utilisation sur la base d'éléments de gestion de qualité d'eau. L'unité d'affichage (14) affiche le niveau de qualité d'eau classé par l'unité de classification (13). Le capteur de qualité d'eau est pratique du fait qu'un niveau de qualité d'eau indiquant comment l'eau peut être utilisée est présenté à l'utilisateur, et non pas les valeurs mesurées pour chaque élément de gestion, l'utilisateur pouvant comprendre immédiatement comment de l'eau ayant fait l'objet d'une inspection devrait être gérée.
PCT/JP2015/003412 2014-09-04 2015-07-07 Capteur de qualité d'eau et système de traitement d'eau WO2016035237A1 (fr)

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CN108303507A (zh) * 2018-01-31 2018-07-20 芜湖美的厨卫电器制造有限公司 水质检测结果的显示方法、显示终端及显示装置
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CN111538229A (zh) * 2020-04-28 2020-08-14 重庆工商大学 基于氨氮和溶解氧精准控制的水产养殖循环水处理系统
CN113354122A (zh) * 2021-06-07 2021-09-07 厦门嘉戎技术股份有限公司 一种智能污水处理装置
DE202022101095U1 (de) 2022-02-25 2022-03-16 Shazia ALI Intelligentes integriertes Überwachungssystem zur Messung der Wasserqualität auf der Basis von IoT-Sensoren

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CN111538229A (zh) * 2020-04-28 2020-08-14 重庆工商大学 基于氨氮和溶解氧精准控制的水产养殖循环水处理系统
CN113354122A (zh) * 2021-06-07 2021-09-07 厦门嘉戎技术股份有限公司 一种智能污水处理装置
DE202022101095U1 (de) 2022-02-25 2022-03-16 Shazia ALI Intelligentes integriertes Überwachungssystem zur Messung der Wasserqualität auf der Basis von IoT-Sensoren

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