WO2015083785A1 - 循環水利用システムの安全装置、循環水利用システム - Google Patents
循環水利用システムの安全装置、循環水利用システム Download PDFInfo
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- WO2015083785A1 WO2015083785A1 PCT/JP2014/082097 JP2014082097W WO2015083785A1 WO 2015083785 A1 WO2015083785 A1 WO 2015083785A1 JP 2014082097 W JP2014082097 W JP 2014082097W WO 2015083785 A1 WO2015083785 A1 WO 2015083785A1
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- Prior art keywords
- water
- circulating water
- circulating
- supply
- safety device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 660
- 238000000746 purification Methods 0.000 claims abstract description 85
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- 239000000126 substance Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 12
- 239000002351 wastewater Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 23
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/074—Arrangement of water treatment devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
- E03B1/042—Details thereof, e.g. valves or pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/85954—Closed circulating system
Definitions
- This disclosure relates to a safety device for a circulating water utilization system that is constructed for a specific area separately from a public water supply network.
- Patent Document 1 discloses a wastewater reuse system that can be configured to use drainage of rainwater and rainwater used in general households as washing water for flush toilets and the like to save water.
- Patent Document 2 discloses a facility for planting greenery in a building that uses middle water to process miscellaneous wastewater generated in the building to generate middle water and reuse the generated middle water as irrigation water for plants cultivated in the building. Is disclosed.
- the above-mentioned conventional reuse system basically purifies the drainage of tap water supplied from the water supply network in one building or one household and uses it as middle water for specific purposes.
- the middle water is discharged into the sewer network.
- it is premised on the existence of an existing public water supply network and sewer network, and cannot be a system that replaces this.
- the new circulating water utilization system that the present applicant is examining, as described in detail later, is, for example, up and down with respect to areas and complex facilities where 10,000 people live.
- This system provides integrated water treatment services, and is a system in which water supply and water treatment are performed cyclically in the area / building.
- this circulating water utilization system is basically constructed independently of the existing water supply network and sewerage network, although it is considered that it will be supplied from the water supply only for drinking water for the time being. It is a small-scale distributed water and sewage integrated treatment system.
- At least one embodiment of the present invention has been made in view of the conventional problems as described above.
- the purpose of the present invention is to investigate whether a novel circulating water utilization system has an abnormality or the like in the purification means.
- An object of the present invention is to provide a safety device for stably supplying circulating water even if it occurs.
- At least one embodiment of the present invention provides: A safety device for a circulating water utilization system,
- the circulating water utilization system is: A circulation channel through which the circulating water flows; Circulating the discharged water discharged from a water demand body composed of a plurality of small water demand bodies consisting of at least one of a residence, a tenant, and an office that uses the circulating water flowing through the circulation channel.
- a purification means comprising a plurality of treatment tanks connected to purify the circulating water including the discharged water flowing through the circulation channel;
- a supply flow path for supplying the water that has been purified by the purification means to the water demand body;
- a safety device that controls the supply of the circulating water in the circulating water utilization system, The safety device includes at least one of circulating water monitoring means for monitoring the quality of the circulating water purified by the purification means, and processing tank monitoring means for detecting an abnormality of the processing tank constituting the purification means.
- the circulating water monitoring means for monitoring the quality of the circulating water purified by the purification means, and the processing tank monitoring means for detecting an abnormality in the processing tank constituting the purification means, At least one of the above. For this reason, it is possible to quickly detect abnormality of the purifying means.
- the safety device includes a circulating water cutoff valve that is provided in the supply flow path and can shut off the supply of the circulating water purified by the purification means to the water consumer, and the operation of the circulating water cutoff valve
- a circulating water cutoff valve control unit capable of controlling When the circulating water monitoring means detects that the quality of the circulating water purified by the purifying means is worse than the prescribed water quality, the circulating water shut-off valve control unit operates the circulating water shut-off valve to the water consumer. It is comprised so that supply of circulating water may be interrupted.
- the circulating water monitoring means detects that the quality of the circulating water has deteriorated from the prescribed water quality, the supply of the circulating water to the water consumer is interrupted, so the water quality has deteriorated. Circulating water can be prevented from being supplied to the water consumer.
- the circulating water utilization system further includes an abnormal supply channel that connects the water supply network and the downstream side of the circulating water cutoff valve in the supply channel.
- the safety device further includes a water control valve that is provided in the abnormal-time supply flow path and opens and closes the abnormal-time supply flow path, and a water control valve control unit that can control opening and closing of the water control valve.
- the circulating water monitoring means detects that the quality of the circulating water purified by the purifying means is worse than the prescribed water quality
- the circulating water shutoff valve control unit activates the circulating water shutoff valve to The supply to the body is cut off, and the water control valve control unit is configured to open the water control valve and supply tap water from the water supply network to the supply flow path.
- the circulating water monitoring means detects that the quality of the circulating water is worse than the prescribed water quality
- the supply of the circulating water to the water consumer is interrupted, and the circulating water is replaced with the circulating water.
- the safety device is configured to discharge water discharged from each of a plurality of small water demand bodies constituting the water demand body and a waste water monitoring means for monitoring the quality of the waste water flowing through the drain flow path. And a plurality of waste water storage tanks each capable of storing the amount.
- the discharged water monitoring means detects that a predetermined amount or more of harmful substances are contained in the discharged water flowing through the discharge flow path
- the circulating water cutoff valve control unit operates the circulating water cutoff valve to circulate.
- the supply of water to the water consumer is interrupted, and the water control valve control unit opens the water control valve to supply tap water from the water supply network to the supply flow path.
- the discharge water monitoring means detects that the discharge water flowing through the discharge flow passage contains a predetermined amount or more of a harmful substance
- supply of circulating water to the water demanding body In addition to being cut off, tap water will be supplied to water consumers as domestic water instead of circulating water. For this reason, it can avoid that the circulating water containing a harmful substance is supplied to a water consumer.
- the safety device of the present embodiment further includes a plurality of discharged water storage tanks capable of storing a certain amount of discharged water discharged from each of the plurality of small-bore water consumers. For this reason, when the discharged water monitoring means detects that the discharged water flowing through the discharge flow passage contains more than a specified amount of harmful substances, the quality of the discharged water stored in these multiple discharged water storage tanks is inspected. By doing so, the source of harmful substances can be identified early.
- the purification means divides a series of purification steps for purifying the discharged water into a plurality of treatment steps, and a plurality of treatment tanks each having a treatment device for performing each treatment step stored in the container.
- a plurality of processing tank rows connected in series are provided.
- the safety device includes a switching means capable of switching the flow of the circulating water so that the circulating water including the discharged water flows to any treatment tank row of the plurality of treatment tank rows, and a switch capable of controlling the switching means.
- Means control unit When the processing tank monitoring means detects an abnormality in the processing tank, the switching means control unit is configured to control the switching means so that the circulating water does not flow into the processing tank row including the processing tank in which the abnormality is detected. ing.
- the switching means when the processing tank monitoring means detects an abnormality in the processing tank, the switching means is controlled so that the circulating water does not flow into the processing tank row including the processing tank in which the abnormality is detected. It is possible to prevent the quality of the circulating water from deteriorating. In addition, by switching the flow of the circulating water by the switching means, it is possible to quickly repair and maintain the treatment tank in which an abnormality has been detected.
- the circulating water utilization system further includes a circulating water storage tank capable of storing the circulating water purified by the purification means.
- the water is stored in the circulation water storage tank.
- the circulating water utilization system includes potable water generating means for purifying tap water introduced from a water supply network to generate potable water for the water consumer, a circulation channel, and the potable water.
- the apparatus further includes a purified water supply pipe connected to the generating means for supplying the drinking water purified by the purifying means to the drinking water generating means.
- the safety device includes: a second water control valve that opens and closes the purified water supply pipe; a water cutoff detection unit that can detect water cutoff in the water supply network; a second water control valve control unit that controls opening and closing of the second water control valve; Are further provided. And when the water cutoff detection means detects the water cutoff of the water supply network, the second water control valve control unit opens the second water control valve so that the circulating water purified by the purification means is supplied to the drinking water generating means. It is configured.
- the second water control valve control unit opens the second water control valve and is purified by the purification means to the drinking water generating means. Circulating water is supplied. For this reason, drinking water can be stably supplied with respect to a water demand body by supplying water continuously with respect to a drinking water production
- the circulating water utilization system includes potable water generating means for purifying tap water introduced from a water supply network to generate potable water for a water consumer, a circulation channel, and potable water generating means. And a purified water supply pipe for supplying the circulating water purified by the purification means to the drinking water generating means.
- the safety device includes: a second water control valve that opens and closes a purified water supply pipe; a second water control valve control unit that controls opening and closing of the second water control valve; and tap water monitoring means that monitors the quality of tap water And a tap water shut-off valve capable of shutting off the tap water and a tap water shut-off valve control unit for controlling the operation of the tap water shut-off valve.
- the second water control valve control unit opens the second water control valve, and the drinking water generating means uses the purification means.
- the purified circulating water is supplied, and the shutoff valve control unit is configured to actuate the tap water shutoff valve to shut off the tap water.
- the tap water shut-off valve control unit when the tap water monitoring means detects that the quality of the tap water is worse than the prescribed water quality, operates the tap water shut-off valve to guide the tap water.
- the second water control valve control unit opens the second water control valve, and the drinking water generating means is supplied with the circulating water purified by the purification means. For this reason, drinking water can be stably supplied with respect to a water consumer by supplying water continuously with respect to a drinking water production
- a safety device for stably supplying circulating water even when an abnormality or the like occurs in the purification means. can be provided.
- FIG. 2 is a schematic view corresponding to the circulating water utilization system shown in FIG. 1, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means. It is a figure for demonstrating the function of a processing tank monitoring means. It is the whole schematic diagram which showed the circulating water utilization system concerning at least 1 embodiment of this invention. It is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 4, Comprising: The example of arrangement
- FIG. 9 is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 7, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means. It is the whole schematic diagram which showed the circulating water utilization system concerning at least 1 embodiment of this invention. It is the whole schematic diagram which showed the circulating water utilization system concerning at least 1 embodiment of this invention. It is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 10, Comprising: Especially the example of arrangement
- FIG. 1 is an overall schematic diagram showing a circulating water utilization system according to at least one embodiment of the present invention.
- the circulating water utilization system 1 is a system constructed for a specific area separately from the public water supply network.
- the population scale targeted by this system is assumed to be approximately 5,000 to 20,000.
- the target area includes a condominium that is a collection of residences, an office building that is a collection of offices, a commercial facility that is a collection of tenants, and a complex facility in which these are mixed.
- the circulating water utilization system 1 includes a circulating flow path 2, a water demand body 3, a discharge flow path 4, a supply flow path 6, a purification means 8, a safety device 10, potable water generating means 12, drinking water. It consists of water supply means 14 and the like.
- the circulation channel 2 is configured as a pipe network in which water pipes are arranged in a closed loop shape.
- Devices such as a pump (not shown) and a valve (not shown) are appropriately arranged in the circulation channel 2 according to the terrain conditions so that the circulating water circulates in one direction.
- the raw water of the circulating water flowing through the circulation channel 2 is not limited to tap water supplied from a public water supply, and may be well water, water taken from a river, water obtained by desalinating seawater, rainwater, or the like. Further, when the circulating water is insufficient, the raw water may be taken into the circulation channel 2 as makeup water from the outside.
- the water consumer 3 is a main body that uses the circulating water flowing through the circulation channel 2 as domestic water.
- the water demanding body 3 is constituted by a plurality of small water demanding bodies consisting of at least one of the residence 3a, the tenant 3b, and the office 3c.
- the dwelling 3a refers to a room in a condominium where one household lives or a detached house.
- the tenant 3b refers to a store that provides services to general customers in a section of a commercial facility.
- the business types include, for example, retail stores such as clothing stores, general stores, drug stores, liquor stores, and restaurants, restaurants, cafes, sushi restaurants, taverns, and the like.
- the office 3c refers to a place where a worker who works in a part of an office building performs office work for a certain purpose.
- Examples of the use of domestic water in the residence 3a include showers, baths, washing, washing dishes, washing hands, washing faces, toilets, and the like.
- Examples of the use of domestic water in the tenant 3b include washing and toilets.
- the amount of water demand varies greatly depending on the type of industry. For example, restaurants use a much larger amount of domestic water than retailers.
- the use of domestic water in the office 3c is mainly a toilet.
- drinking water is supplied to the water consumer 3 separately from the circulating water described above.
- This drinking water is generated by further purifying tap water introduced from a public water supply network, and has the same quality as commercially available mineral water.
- Such a mechanism can eliminate the anxiety of those who are reluctant to drink circulating water, and is expected to become a selling point when spreading this circulating water utilization system 1. It is.
- the tap water is led from the public water supply network to the drinking water generating means 12 through the tap water conduit 16.
- the drinking water generating means 12 purifies the introduced tap water and generates drinking water for the water consumer 3.
- the potable water generating means 12 uses a container-type treatment tank in which a processing device that performs one processing step among a series of purification steps is stored in the container, similarly to the purification means 8 described later. And it is comprised by connecting this container type processing tank in series along the order of a process process.
- a container refers to the rectangular container by which the dimension was standardized for the transportation use.
- the raw water of the drinking water in the circulating water utilization system 1 is not limited to tap water,
- the water taken from the well water, the river, the water which desalinated seawater, etc. may be sufficient.
- Drinking water generated by the drinking water generating means 12 is supplied to each of the small-bore water consumer by the drinking water supply means 14.
- the potable water supply means 14 includes a potable water feed pipe 14a, a storage tank 14b, a potable water pipe 14c, and the like.
- the potable water generated by the potable water generating means 12 is sent to the storage tank 14b via the potable water supply pipe 14a and temporarily stored in the storage tank 14b.
- the drinking water currently stored by the storage tank 14b is supplied to each of the small-lot water demand body which consists of the residence 3a mentioned above, the tenant 3b, and the office 3c via the drinking water piping 14c.
- the discharge flow path 4 is a flow path for draining the discharged water discharged from the water consumer 3 to the circulation flow path 2.
- the discharged water discharged from the discharge flow path 4 includes potable water and other water derived from outside the system in addition to the circulating water used by the water consumer 3 as domestic water.
- the supply flow path 6 is a flow path for supplying the circulating water purified by the purification means 8 described later to the water consumer 3 as domestic water. Both the discharge flow path 4 and the supply flow path 6 are constituted by pipe lines. Further, the discharge channel 4 and the supply channel 6 are appropriately set according to the terrain conditions so that the discharged water is drained into the circulation channel 2 or the circulating water is supplied to the water demanding body 3. Devices such as a pump (not shown) and a valve (not shown) are arranged.
- the purification means 8 is a means for purifying the circulating water including the discharged water flowing through the circulation flow path 2.
- the purification means 8 uses a container-type treatment tank in which a treatment apparatus that performs one treatment step among a series of purification steps is stored inside the container. And it is comprised by connecting this container type processing tank in series along the order of a process process.
- the circulation channel 2 is not connected to a public sewer network.
- surplus sludge such as sludge cake generated in the purification process of discharged water is carried out of the system, but other discharged water is reused 100%. That is, the present circulating water utilization system 1 is a completely circulating circulating water utilization system in which water supply and water treatment are performed cyclically in the system, and sewage is not discharged outside the system.
- FIG. 2 is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 1, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means.
- the purification means 8 includes a screen / flow rate adjusting container L1, an anaerobic container L2, an aerobic container L3, a rough membrane container L4, a fine membrane container L5, an ozone treatment container L6, and a water sterilization container L7.
- the sterilization container L8 is configured by being connected in series in this order.
- the screen / flow rate adjusting container L1 is a processing tank that removes inspection and oil contained in the discharged water, and includes equipment such as an oil trap and a screen device.
- the anaerobic container L2 and the aerobic container L3 are treatment tanks for performing anaerobic treatment and aerobic treatment to remove organic substances contained in the discharged water.
- As the treatment method various known treatment methods such as A20 activated sludge method, batch activated sludge method, contact oxidation method, oxidation ditch method and the like can be adopted.
- the coarse film container L4 is a treatment tank for separating sludge from the discharged water.
- Various apparatuses and methods such as a precipitation tank, MF membrane, UF membrane, and centrifugal separation can be employed.
- the fine membrane container L5 is a treatment tank for increasing the quality of the circulating water to the level of water supply.
- Various devices and methods such as reverse osmosis membrane, activated carbon, sand filtration, ozone generator, ion exchange, and mineral addition device can be employed.
- the ozone treatment container L6 is a treatment tank for performing ozone treatment on the purified circulating water.
- the water storage sterilization container L7 is a treatment tank for temporarily storing the purified circulating water while storing and sterilizing the water with ultraviolet rays.
- the sterilization container L8 is a treatment tank for sterilizing and purifying the purified circulating water with ultraviolet rays, chlorine, ozone, or the like.
- the sludge return / sludge dewatering container L9 is a treatment tank for dewatering and drying the sludge.
- the sludge storage containers L10 and L11 are treatment tanks for storing wastes generated in the sewage treatment such as sludge cakes and grinds. . Excess sludge such as sludge cake stored in the sludge storage containers L10 and L11 is taken out of the system, for example, by being collected by a fertilizer supplier.
- generation means 12 has the fine membrane container H1, the ion exchange container H2, the water storage sterilization container H3, the mineral adjustment container H4, and the disinfection container H5 connected in series in this order. Is made up of.
- the fine membrane container H1, the ion exchange container H2, the water storage sterilization container H3, the mineral adjustment container H4, and the disinfection container H5 are treatment tanks for further purifying the tap water to the same quality as commercially available mineral water. .
- the fine membrane container H1 is equipped with various devices and methods such as reverse osmosis membrane, activated carbon and sand filtration.
- the ion exchange container H2 includes an ion exchange device and the like.
- the water storage sterilization container H3 is a treatment tank for temporarily storing purified tap water while storing and sterilizing the water with ultraviolet rays.
- the mineral adjustment container L4 includes a mineral addition device and the like.
- the sterilization container H5 is a treatment tank for sterilizing and purifying purified tap water with ultraviolet rays, chlorine, ozone, and the like.
- symbol TW in a figure has shown the flow of the tap water supplied from a public water supply network.
- the tap water TW may be configured not only to be supplied to the drinking water generating means 12 as described above, but also to be supplied to the circulation channel 2 as make-up water as necessary.
- the supply position in this case is preferably on the downstream side of the fine membrane container L5 where the purification process of the discharged water is almost completed.
- symbol WW4 in a figure is a return pipeline for sending concentrated water to the screen / flow control container L1.
- a series of purification steps for example, 3
- a container-type processing tank is used in which a processing apparatus that performs one processing step among the plurality of processing steps described above is stored inside a container. Then, a container-type processing tank that performs the first processing step, a container-type processing tank that performs the next processing step, and a container-type processing tank that performs the subsequent processing steps are brought into the field, and each is connected in series with a connecting pipe.
- the purifying means 8 is constructed by connecting to.
- Such a container-type treatment tank is excellent in portability because it can be loaded and transported on a truck as it is. Moreover, since it is detachably accommodated in the container container, it can be installed and removed freely.
- the processing capacity per one processing tank of the container type processing tank is assumed to be a scale capable of processing about 1,000 people of discharged water. For this reason, for example, when this circulating water utilization system is introduced to an area or complex facility where 10,000 people live, a plurality of (for example, 10) treatment tanks that perform the same treatment process are required. Become. Thus, by providing a plurality of processing tanks that perform the same processing step, the processing capacity per processing tank can be reduced. Therefore, it is possible to flexibly cope with population fluctuations and water demand seasonal fluctuations in the target area. Moreover, it is easy to prepare an alternative processing tank, and the maintenance is excellent.
- the safety device 10 is a device for stably supplying circulating water to the water consumer even when an abnormality or the like occurs in the purification means 8 described above.
- the safety device 10 includes a circulating water monitoring unit 32 that monitors the quality of the circulating water purified by the purifying unit 8, and a processing tank monitor that detects an abnormality in the processing tank that constitutes the purifying unit 8. At least one of the means 36 is provided.
- the circulating water monitoring means 32 is provided on the downstream side of the purification means 8, and is provided in the supply flow path 6 in the illustrated embodiment.
- the circulating water monitoring means 32 can be configured as an automatic water quality monitoring device that automatically measures the chromaticity, turbidity, residual chlorine, pH, conductivity, water temperature, etc. of the circulating water, for example, every predetermined time.
- the circulating water monitoring means 32 may be constituted by a portable water quality inspection kit, a microfluidic device, or the like, instead of the stationary water quality monitoring device.
- the processing tank monitoring means 36 is configured as a microcomputer including a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), an I / O interface, and the like.
- each of the processing tanks constituting the purification means 8 is provided with an abnormality detection sensor for detecting an abnormality of the processing tank.
- the abnormality detection sensor detects an abnormality in the processing tank of the purification unit 8, the abnormality information is transmitted to the processing tank monitoring unit 36 by wire or wirelessly.
- the circulating water monitoring unit 32 that monitors the quality of the circulating water purified by the purification unit 8, and the purification unit 8.
- the abnormality detection sensor that detects an abnormality of the treatment tank may be provided in the treatment tank constituting the potable water generating means 12.
- the abnormality information may be transmitted to the processing tank monitoring unit 36 by wire or wirelessly. According to such an embodiment, it is possible to quickly detect an abnormality in the purification means 8 of the potable water generating means 12, and it is possible to quickly repair and maintain a treatment tank in which an abnormality has been detected. ing.
- the operation rate sensor which detects the operation rate of the processing tank may be attached to each of the processing tank which comprises the purification
- FIG. And the information regarding the operating rate of each processing tank detected by the operating rate sensor may be transmitted to the processing tank monitoring unit 36 located away from the purification unit 8 by wire or wireless. .
- the transmitted information regarding the operating rate of each processing tank is displayed on the display unit of the processing tank monitoring means 36.
- An operator who supervises the circulating water utilization system 1 monitors the operation rate of each treatment tank displayed on the treatment tank monitoring means 36. According to such an embodiment, it is possible to quickly and easily determine whether to add or remove a treatment tank by remotely monitoring the operating rate of the treatment tanks constituting the purification means 8 and the drinking water generation means 12. .
- the safety device 10 described above is provided in the supply flow path 6 and can shut off the supply of the circulating water purified by the purification means 8 to the water demanding body 3.
- a circulating water cutoff valve 23 and a circulating water cutoff valve control unit 23a capable of controlling the operation of the circulating water cutoff valve 23 are further provided.
- the circulating water monitoring means 32 detects that the quality of the circulating water purified by the purifying means 8 has deteriorated from the prescribed water quality
- the circulating water cutoff valve control unit 23a operates the circulating water cutoff valve 23 to It is comprised so that supply of the circulating water to the demand body 3 may be interrupted.
- the circulating water monitoring means 32 detects that the quality of the circulating water is worse than the prescribed water quality, the supply of the circulating water to the water demanding body 3 is interrupted, It is possible to prevent the deteriorated circulating water from being supplied to the water consumer 3.
- the circulating water utilization system 1 described above further includes an abnormal-time supply flow path 25 that connects the water supply network and the downstream side of the circulating water cutoff valve 23 in the supply flow path 6.
- the safety device 10 described above is provided in the abnormal-time supply flow path 25, a water-control valve 35 that opens and closes the abnormal-time supply flow path 25, and a water-control valve control unit that can control the opening and closing of the water control valve 35. 35a.
- the circulating water monitoring means 32 detects that the quality of the circulating water purified by the purifying means 8 is worse than the prescribed water quality
- the circulating water cutoff valve control unit 23a operates the circulating water cutoff valve 23 to circulate.
- the supply of water to the water demanding body 3 is interrupted, and the water control valve control unit 35a opens the water control valve 35 to supply tap water from the water supply network to the supply flow path 6.
- the circulating water monitoring means 32 detects that the quality of the circulating water has deteriorated from the prescribed water quality, the supply of the circulating water to the water demanding body 3 is interrupted, and the circulating water Instead, tap water is supplied to the water consumer 3 as domestic water. For this reason, even if the quality of circulating water deteriorates, domestic water can be stably supplied to the water consumer 3.
- the safety device 10 is discharged from each of the discharged water monitoring means 33 that monitors the quality of the discharged water flowing through the discharge flow path 4 and each of the plurality of small water demand bodies constituting the water demand body 3. And a plurality of drain water storage tanks 42 each capable of storing a certain amount of water.
- the discharged water monitoring means 33 detects that the drainage water flowing through the discharge flow path 4 contains a predetermined harmful substance
- the circulating water cutoff valve control unit 23a operates the circulating water cutoff valve 23.
- the supply of the circulating water to the water consumer is interrupted, and the water control valve control unit 35a opens the water control valve 35 to supply the tap water from the water supply network to the supply flow path 6.
- the discharged water monitoring means 33 the presence or absence of harmful substances such as arsenic, heavy metals, mercury, chromium, cadmium, tin, lead, etc. It can be configured as an automatic water quality monitoring device that automatically measures the content every predetermined time. Further, the discharged water monitoring means 33 may be composed of a portable water quality inspection kit, a microfluidic device or the like instead of the stationary water quality monitoring device.
- the discharge water monitoring means 33 detects that the discharge water flowing through the discharge flow path 4 contains a predetermined amount or more of a predetermined harmful substance, circulation to the water consumer 3 While the supply of water is cut off, tap water is supplied to the water consumer 3 as domestic water instead of circulating water. For this reason, it is possible to avoid circulating water containing harmful substances from being supplied to the water consumer 3.
- the safety device 10 of the present embodiment includes a plurality of discharged water storage tanks 42 that can store a certain amount of discharged water discharged from each of the plurality of small water consumers. It has more. For this reason, when the discharge water monitoring means 33 detects that the discharge water flowing through the discharge flow path 4 contains a harmful amount or more, the discharge water stored in the plurality of discharge water storage tanks 42 is detected. By examining the water quality, the source of harmful substances can be identified early.
- FIG. 3 is a diagram for explaining the function of the processing tank monitoring means.
- the above-described purification means 8 includes a processing apparatus that performs one processing step in which a series of purification steps for purifying discharged water is divided into, for example, three or more processing steps, and is stored inside the container.
- the first processing tank 41a, 41b, 41c (for example, the aerobic container L3), a processing apparatus that performs the next processing step of the processing process performed in the first processing tank 41a, 41b, 41c among the plurality of processing steps is a container 2nd processing tank 42a, 42b, 42c (for example, rough film container L4) stored in the inside of this, the next processing process of the processing process performed in 2nd processing tank 42a, 42b, 42c is performed among several processing processes.
- a first processing tank row 41L, a second processing tank, in which three processing tanks of third processing tanks 43a, 43b, 43c (for example, a fine membrane container L5) in which the processing apparatus is stored inside the container are connected in series.
- the switching means 45 which can switch the flow of this circulating water so that the circulating water containing discharged water may be flowed to the arbitrary processing tank row
- a switching means control unit 45a capable of controlling the switching means 45.
- the switching unit control unit 45a controls the switching unit 45 so that the circulating water does not flow into the processing tank row including the processing tank in which the abnormality is detected. It is configured.
- the switching means control unit 45a controls the switching means 45 so that the circulating water does not flow into the second treatment tank row 42L including the second treatment tank 42b.
- the circulating water including the discharged water flows through one or both of the first treatment tank row 41L and the third treatment tank row 43L.
- the case where the number of processing tank rows is three has been described as an example. However, as long as there are a plurality of processing bath rows, the number is not particularly limited to three. For convenience of explanation, a case where three processing tanks are connected in series to one processing tank row has been described as an example, but a plurality of processing tanks may be connected in series.
- the switching means 45 when the processing tank monitoring means 36 detects an abnormality in the processing tank, the switching means 45 is controlled so that the circulating water does not flow into the processing tank row including the processing tank in which the abnormality is detected. Therefore, it is possible to prevent the quality of the circulating water from deteriorating. In addition, by switching the flow of the circulating water by the switching means 45, it is possible to quickly repair / maintain the treatment tank in which an abnormality has been detected.
- FIG. 4 is an overall schematic diagram showing a circulating water utilization system according to at least one embodiment of the present invention.
- FIG. 5 is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 4, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means.
- the circulating water utilization system 1 further includes a circulating water storage tank 38 that stores the circulating water purified by the purification means 8.
- the capacity of the circulating water storage tank 38 is set to, for example, about the amount of water for daily consumption consumed by the water consumer 3 per day.
- This circulating water storage tank 38 may be provided separately from the purification means 8, or the above-described water storage sterilization container L 7 may be used as the circulating water storage tank 38 as shown in FIG.
- the installation position of the circulating water storage tank 38 should just be in the downstream rather than the purification
- the circulating water storage tank 38 is connected to the water consumer 3.
- the stored circulating water can be supplied.
- the water is stored in the circulation water storage tank 38.
- the circulating water By supplying the circulating water being supplied to the water demanding body 3, it is possible to cope with the shortage of circulating water supplied to the water demanding body 3.
- the safety device 10 includes a storage amount measuring unit 38a that measures the amount of circulating water stored in the circulating water storage tank 38, a purification unit control unit 8a that controls the driving of the purification unit 8, Is further provided.
- the purifying means control unit 8a controls the supply of circulating water sent to the purifying means 8 by controlling pumps and valves, for example, and drives the devices of various processing tanks constituting the purifying means 8. By controlling, it is comprised so that the drive of the whole purification
- the purification cost can be reduced by preferentially driving the purification means 8 in a time zone such as at night when the power charge is always low.
- the purification unit 8 is driven regardless of the time zone to supply the water demanding body 3. It is possible to avoid the situation where water for daily life is insufficient.
- the domestic water amount measuring means 18 c that measures the amount of domestic water supplied from the supply flow path 6 to the water consumer 3 and the demand prediction of the domestic water amount are performed.
- a demand prediction unit 39 is configured as a microcomputer including a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and an I / O interface.
- the domestic water volume measuring means 18c includes, for example, a flow meter 18c. Then, the daily water amount measured by the domestic water amount measuring unit 18c is memorized every moment, and the future water demand for domestic water is predicted based on the stored past daily water amount. Has been.
- the amount of domestic water supplied in the same month, day, day of the week, time zone, etc. in the past can be used as a predicted value of water demand.
- the predicted value of water demand can also be corrected based on outside air information such as temperature and humidity. According to such an embodiment, since the purification means 8 can be appropriately driven according to the prediction result of the water demand, the purification means 8 can be operated efficiently.
- FIG. 7 is an overall schematic diagram showing a circulating water utilization system according to at least one embodiment of the present invention.
- FIG. 8 is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 7, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means.
- the circulating water utilization system 1 described above connects the circulation flow path 2 and the drinking water generating means 12 and drinks the circulating water purified by the purifying means 8.
- a purified water supply pipe 22 for supplying the water generating means 12 is further provided.
- the safety device 10 mentioned above controls the opening and closing of the 2nd water control valve 24 which opens and closes the purified water supply pipe 22, the water cutoff detection means 26 which can detect the water cutoff of a water supply network, and the 2nd water control valve 24.
- a second water control valve control unit 24a is a.
- the second water control valve control unit 24a opens the second water control valve 24, and the circulated water purified by the purification means 8 in the drinking water generating means 12 Is configured to supply.
- water outage information transmitted from the Waterworks Bureau or the like can be used.
- the second water control valve control unit 24a opens the second water control valve 24 and purifies the drinking water generating means 12 with the purifying means. Circulated water purified by 8 is supplied. For this reason, the drinking water can be stably supplied to the water consumer 3 by continuously supplying the drinking water generating means 12 even when the water supply network is shut off.
- FIG. 9 is an overall schematic diagram showing a circulating water utilization system according to at least one embodiment of the present invention.
- the circulating water utilization system 1 described above connects the circulation flow path 2 and the drinking water generating means 12 as in the above-described embodiment, and uses the circulating water purified by the purifying means 8 as drinking water.
- a purified water supply pipe 22 for supplying the generation means 12 is further provided.
- the safety device 10 described above includes a second water control valve 24 that opens and closes the purified water supply pipe 22, a second water control valve control unit 24a that controls opening and closing of the second water control valve 24, and the quality of tap water.
- the tap water monitoring means 28 for monitoring the tap water, the tap water shut-off valve 30 capable of shutting off the tap water, and the tap water shut-off valve control unit 30a for controlling the operation of the tap water shut-off valve 30 are further provided. Then, when the tap water monitoring means 28 detects that the quality of the tap water is worse than the prescribed water quality, the second water control valve control unit 24a opens the second water control valve 24 and the drinking water generating means 12 is opened. In addition to supplying the circulating water purified by the purification means 8, the shutoff valve control unit 30a operates the tap water shutoff valve 30 to shut off the tap water.
- the tap water monitoring means 28 As an example of the tap water monitoring means 28, as with the circulating water monitoring means 32 described above, the chromaticity, turbidity, residual chlorine, pH, conductivity, water temperature, etc. of tap water are automatically measured at predetermined intervals, for example. It can be configured as an automatic water quality monitoring device.
- the tap water monitoring means 28 may be constituted by a portable water quality inspection kit, a microfluidic device or the like instead of the stationary water quality monitoring device.
- the tap water cutoff valve control unit 30a operates the tap water cutoff valve 30 to supply the tap water.
- the second water control valve control unit 24a opens the second water control valve 24 and the drinking water generating means 12 is supplied with the circulating water purified by the purification means 8. For this reason, the drinking water can be stably supplied to the water consumer 3 by continuously supplying the drinking water generating means 12 even when the quality of the tap water is deteriorated.
- FIG. 10 is an overall schematic diagram showing a circulating water utilization system according to at least one embodiment of the present invention.
- FIG. 11 is a schematic diagram corresponding to the circulating water utilization system shown in FIG. 10, and particularly shows an arrangement example of treatment tanks in the purifying means and the drinking water generating means.
- two of the treatment tanks L1 to L8 constituting the purification means 8 are microfiltration membranes for filtering sludge contained in the discharged water.
- Water treatment water discharged from the sludge separation treatment tank comprising a sludge separation treatment tank and an advanced treatment tank for performing a subsequent treatment process of the treatment process performed in the sludge separation treatment tank, and filtering the discharged water.
- a middle water supply path 34 for supplying the demand body 3 as middle water is further provided.
- the sludge separation treatment tank having a microfiltration membrane for filtering sludge contained in the discharged water corresponds to the coarse film container L4 in the plurality of treatment tanks constituting the purification means 8 described above.
- the advanced treatment tank for filtering the discharged water corresponds to the fine membrane container L5 in the plurality of treatment tanks constituting the purification means 8 described above.
- the living water that is supplied to the water demanding body 3 does not come into contact with human skin, for example, is used for toilet flushing water, etc. It is conceivable that the ratio of water used is high. Therefore, according to such an embodiment, by supplying circulating water purified to a level usable as washing water by the sludge separation treatment tank to the water demanding body 3 as intermediate water, the energy required for the subsequent purification process Cost can be reduced.
- the middle water supply path 34 which supplies the purified water as such to the water demand body 3 is provided, the quality of the circulating water purified by the purification means 8 as in the above-described embodiment. Is worse than the prescribed water quality, or when it is detected that the discharge water contains more than the prescribed amount of harmful substances, and the circulating water shut-off valve 23 is activated to circulate water to the water consumer 3 Even when the supply of water is stopped, the circulating water purified by the purification means 8 can be used as intermediate water.
- At least one embodiment of the present invention can be suitably used in a circulating water utilization system constructed for a specific area separately from a public water supply network.
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Abstract
Description
上述した従来の再利用システムは、基本的に一建物内や一家庭等内において、上水道網から供給される上水の排水を浄化して特定用途の中水として利用するものであり、利用後の中水は下水道網に排出される。すなわち、既存の公共の上水道網、下水道網の存在が前提であり、これに代替するシステムとはなり得ない。
循環水利用システムの安全装置であって、
前記循環水利用システムは、
循環水が流れる循環流路と、
前記循環流路を流れる循環水を使用する、住居、テナント、及び事務所の内の少なくとも一種からなる小口水需要体が複数集まって構成される水需要体、から排出される排出水を前記循環流路へ排出する排出流路と、
前記循環流路を流れる前記排出水を含む循環水を浄化する、複数の処理槽が接続されてなる浄化手段と、
前記浄化手段で浄化された循環水を前記水需要体に供給する供給流路と、
前記循環水利用システムにおける前記循環水の供給を制御する安全装置と、を少なくとも含み、
前記安全装置は、前記浄化手段によって浄化された循環水の水質を監視する循環水監視手段、及び前記浄化手段を構成する前記処理槽の異常を検知する処理槽監視手段、の少なくとも何れか一方を備える。
ただし、本発明の範囲は以下の実施形態に限定されるものではない。以下の実施形態に記載されている構成部品の寸法、材質、形状、その相対配置などは、本発明の範囲をそれにのみ限定する趣旨ではなく、単なる説明例に過ぎない。
循環水利用システム1は、公共の上水道網とは別に、特定の地域を対象として構築されるシステムである。本システムの対象となる人口規模としては、おおよそ5,000~20,000人を想定している。対象地域としては、住居の集合体であるマンション、事務所の集合体であるオフィスビル、テナントの集合体である商業施設、及びこれらが混在する複合施設などである。
循環流路2を流れる循環水の原水は、公共の上水道から供給される水道水に限定されず、井戸水、河川から取水した水、海水を淡水化した水、雨水等であってもよい。また、循環水が不足する場合には、これらの原水を外部から補給水として循環流路2に取り入れるように構成してもよい。なお、これらの原水を補給水として循環流路2に取り入れる場合、その水質レベルに応じて後述する浄化手段8の処理槽に取り込むとよい。例えば、比較的水質の良い井戸水、河川から取水した水、海水を淡水化した水については、後述する浄化手段8の粗膜コンテナL4又は微細膜コンテナL5に取り込み、比較的水質の悪い雨水については通気性コンテナL2、好気性コンテナL3に取り込むように構成するとよい。
住居3aにおける生活用水の用途としては、例えばシャワーや風呂、洗濯、食器の洗浄、手洗いや洗顔、トイレ、等々が挙げられる。テナント3bにおける生活用水の用途としては、洗浄やトイレ等が挙げられる。また業種によって水需要量が大きく異なっており、例えば飲食店は小売業と比べてはるかに大量の生活用水を利用する。事務所3cにおける生活用水の用途は主にトイレである。
なお、本明細書においてコンテナとは、輸送用途のため寸法が規格化された矩形状の容器のことを指す。
安全装置10は、図1に示したように、浄化手段8によって浄化された循環水の水質を監視する循環水監視手段32、及び浄化手段8を構成する処理槽の異常を検知する処理槽監視手段36、の少なくとも何れか一方を備えている。
このような実施形態によれば、飲用水生成手段12の浄化手段8の異常をいち早く検知することが出来るとともに、異常の検知された処理槽の修理・メンテナンスを迅速に行うことが出来るようになっている。
このような実施形態によれば、浄化手段8および飲用水生成手段12を構成する処理槽の稼働率を遠隔監視することで、処理槽の増設及び撤去の判断を迅速かつ容易に行うことが出来る。
幾つかの実施形態では、上述した浄化手段8は、排出水を浄化する一連の浄化工程を例えば3以上の複数の処理工程に分割した内の一処理工程を行う処理装置が容器の内部に格納された第1処理槽41a、41b、41c(例えば好気性コンテナL3)、複数の処理工程の内、第1処理槽41a、41b、41cで行われる処理工程の次処理工程を行う処理装置が容器の内部に格納された第2処理槽42a、42b、42c(例えば粗膜コンテナL4)、複数の処理工程の内、第2処理槽42a、42b、42cで行われる処理工程の次処理工程を行う処理装置が容器の内部に格納された第3処理槽43a、43b、43c(例えば微細膜コンテナL5)、の3つの処理槽が直列に接続されてなる、第1処理槽列41L、第2処理槽列42L、第3処理槽列43Lの3つの処理槽列を備える。そして、上述した安全装置10は、排出水を含む循環水を3つの処理槽列41L、42L、43Lの内の任意の処理槽列に流すように該循環水の流れを切り替え可能な切替手段45と、切替手段45を制御可能な切替手段制御ユニット45aと、を備える。そして、処理槽監視手段36が処理槽の異常を検知すると、切替手段制御ユニット45aが、異常が検知された処理槽を含む処理槽列に循環水が流れないように切替手段45を制御するように構成されている。
なお、図示した実施形態では、処理槽列が3列の場合を例に説明したが、処理槽列は複数であれば、その数は特に3列に限定されない。また説明の便宜上、1つの処理槽列には3つの処理槽が直列に接続されている場合を例に説明したが、複数の処理槽が直列に接続されていればよいものである。
幾つかの実施形態では、図4に示したように、循環水利用システム1は、浄化手段8で浄化された循環水を貯留する循環水貯留タンク38をさらに備えている。
需要予測部39は、中央処理装置(CPU)、ランダムアクセスメモリ(RAM)、リードオンリメモリ(ROM)、およびI/Oインターフェイスなどからなるマイクロコンピュータとして構成されている。生活用水量計測手段18cは、例えば流量計18cなどからなる。そして、生活用水量計測手段18cで計測された生活用水量を時々刻々と記憶するとともに、該記憶している過去の生活用水量に基づいて、将来の生活用水の水需要を予測するように構成されている。
このような実施形態によれば、水需要の予測結果に応じて適宜浄化手段8を駆動させることが出来るため、浄化手段8を効率的に運用することが出来る。
幾つかの実施形態では、上述した循環水利用システム1は、上述した実施形態と同様、循環流路2と飲用水生成手段12とを接続し、浄化手段8によって浄化された循環水を飲用水生成手段12に供給するための浄化水供給管22をさらに備えている。また、上述した安全装置10は、浄化水供給管22を開閉する第2制水弁24と、第2制水弁24の開閉を制御する第2制水弁制御ユニット24aと、水道水の水質を監視する水道水監視手段28と、水道水の導水を遮断可能な水道水遮断弁30と、水道水遮断弁30の作動を制御する水道水遮断弁制御ユニット30aと、をさらに備える。そして、水道水監視手段28が水道水の水質が規定の水質よりも悪化したことを検知すると、第2制水弁制御ユニット24aが第2制水弁24を開弁して飲用水生成手段12に浄化手段8によって浄化された循環水を供給するとともに、遮断弁制御ユニット30aが水道水遮断弁30を作動させて水道水の導水を遮断するように構成されている。
幾つかの実施形態では、図10および図11に示したように、浄化手段8を構成する処理槽L1~L8の内の2つは、排出水に含まれる汚泥をろ過処理する精密ろ過膜を有する汚泥分離処理槽、及び該汚泥分離処理槽で行われる処理工程の次処理工程を行う、排出水をろ過処理する高度処理槽、からなり、汚泥分離処理槽から排出される被処理水を水需要体3に中水として供給する中水供給路34をさらに備える。
2 循環流路
3 水需要体
3a 住居
3b テナント
3c 事務所
4 排出流路
6 供給流路
8 浄化手段
8a 浄化手段制御ユニット
10 安全装置
12 飲用水生成手段
14 飲用水供給手段
14a 飲用水送水管
14b 貯留タンク、飲用水タンク
14c 飲用水配管
16 水道水導水管
18c 生活用水量計測手段(流量計)
22 浄化水供給管
23 循環水遮断弁
23a 循環水遮断弁制御ユニット
24 第2制水弁
24a 第2制水弁制御ユニット
25 異常時供給流路
26 断水検知手段
28 水道水監視手段
30 水道水遮断弁
30a 水道水遮断弁制御ユニット
32 循環水監視手段
32a 報知手段
33 排出水監視手段
34 中水供給路
35 制水弁
35a 制水弁制御ユニット
36 処理槽監視手段
38 循環水貯留タンク
38a 貯留量計測手段
39 需要予測部
42 排出水貯留タンク
45 切替手段
45a 切替手段制御ユニット
Claims (9)
- 循環水利用システムの安全装置であって、
前記循環水利用システムは、
循環水が流れる循環流路と、
前記循環流路を流れる循環水を使用する、住居、テナント、及び事務所の内の少なくとも一種からなる小口水需要体が複数集まって構成される水需要体、から排出される排出水を前記循環流路へ排出する排出流路と、
前記循環流路を流れる前記排出水を含む循環水を浄化する、複数の処理槽が接続されてなる浄化手段と、
前記浄化手段で浄化された循環水を前記水需要体に供給する供給流路と、
前記循環水利用システムにおける前記循環水の供給を制御する安全装置と、を少なくとも含み、
前記安全装置は、前記浄化手段によって浄化された循環水の水質を監視する循環水監視手段、及び前記浄化手段を構成する前記処理槽の異常を検知する処理槽監視手段、の少なくとも何れか一方を備える
循環水利用システムの安全装置。 - 前記安全装置は、
前記供給流路に設けられ、前記浄化手段で浄化された循環水の前記水需要体への供給を遮断可能な循環水遮断弁と、
前記循環水遮断弁の作動を制御可能な循環水遮断弁制御ユニットと、をさらに備え、
前記循環水監視手段が前記浄化手段で浄化された循環水の水質が規定の水質よりも悪化したことを検知すると、前記循環水遮断弁制御ユニットが前記循環水遮断弁を作動させて前記水需要体への前記循環水の供給を遮断するように構成されている
請求項1に記載の循環水利用システムの安全装置。 - 前記循環水利用システムは、
上水道網と前記供給流路における前記循環水遮断弁の下流側とを接続する異常時供給流路をさらに備え、
前記安全装置は、
前記異常時供給流路に設けられ、該異常時供給流路を開閉する制水弁と、
前記制水弁の開閉を制御可能な制水弁制御ユニットと、をさらに備えるとともに、
前記循環水監視手段が前記浄化手段で浄化された循環水の水質が規定の水質よりも悪化したことを検知すると、前記循環水遮断弁制御ユニットが前記循環水遮断弁を作動させて前記循環水の前記水需要体への供給を遮断するとともに、前記制水弁制御ユニットが前記制水弁を開弁して前記上水道網から前記供給流路に水道水を供給するように構成されている
請求項2に記載の循環水利用システムの安全装置。 - 前記安全装置は、
前記排出流路を流れる前記排出水の水質を監視する排出水監視手段と、
前記水需要体を構成する複数の小口水需要体の各々から排出される前記排出水を一定量分だけ夫々貯留可能な複数の排出水貯留タンクと、をさらに備え、
前記排出水監視手段が、前記排出流路を流れる前記排出水に予め規定した有害物質が規定量以上含まれていることを検知すると、前記循環水遮断弁制御ユニットが前記循環水遮断弁を作動させて前記循環水の前記水需要体への供給を遮断するとともに、前記制水弁制御ユニットが前記制水弁を開弁して前記上水道網から前記供給流路に水道水を供給するように構成されている
請求項3に記載の循環水利用システムの安全装置。 - 前記浄化手段は、
前記排出水を浄化する一連の浄化工程を複数の処理工程に分割し、各処理工程を行う処理装置が夫々容器の内部に格納された複数の処理槽が直列に接続されてなる処理槽列を複数備え、
前記安全装置は、
前記排出水を含む循環水を前記複数の処理槽列の内の任意の処理槽列に流すように該循環水の流れを切り替え可能な切替手段と、
前記切替手段を制御可能な切替手段制御ユニットと、を備えるとともに、
前記処理槽監視手段が前記処理槽の異常を検知すると、前記切替手段制御ユニットが、異常が検知された処理槽を含む処理槽列に前記循環水が流れないように前記切替手段を制御するように構成されている
請求項1に記載の循環水利用システムの安全装置。 - 前記循環水利用システムは、前記浄化手段で浄化された循環水を貯留可能な循環水貯留タンクをさらに備える
請求項2~5の何れか一項に記載の循環水利用システムの安全装置。 - 前記循環水利用システムは、
上水道網から導水した水道水を浄化して前記水需要体のための飲用水を生成する飲用水生成手段と、
前記循環流路と前記飲用水生成手段とを接続し、前記浄化手段によって浄化された循環水を前記飲用水生成手段に供給するための浄化水供給管と、をさらに備え、
前記安全装置は、
前記浄化水供給管を開閉する第2制水弁と、
前記上水道網の断水を検知可能な断水検知手段と、
前記第2制水弁の開閉を制御する第2制水弁制御ユニットと、をさらに備えるとともに、
前記断水検知手段が前記上水道網の断水を検知すると、前記第2制水弁制御ユニットが前記第2制水弁を開弁して前記飲用水生成手段に前記浄化手段によって浄化された循環水を供給するように構成されている
請求項1に記載の循環水利用システムの安全装置。 - 前記循環水利用システムは、
上水道網から導水した水道水を浄化して前記水需要体のための飲用水を生成する飲用水生成手段と、
前記循環流路と前記飲用水生成手段とを接続し、前記浄化手段によって浄化された循環水を前記飲用水生成手段に供給するための浄化水供給管と、をさらに備え、
前記安全装置は、
前記浄化水供給管を開閉する第2制水弁と、
前記第2制水弁の開閉を制御する第2制水弁制御ユニットと、
前記水道水の水質を監視する水道水監視手段と、
前記水道水の導水を遮断可能な水道水遮断弁と、
前記水道水遮断弁の作動を制御する水道水遮断弁制御ユニットと、をさらに備えるとともに、
前記水道水監視手段が前記水道水の水質が規定の水質よりも悪化したことを検知すると、前記第2制水弁制御ユニットが前記第2制水弁を開弁して前記飲用水生成手段に前記浄化手段によって浄化された循環水を供給するとともに、前記遮断弁制御ユニットが前記水道水遮断弁を作動させて前記水道水の導水を遮断するように構成されている
請求項1に記載の循環水利用システムの安全装置。 - 循環水が流れる循環流路と、
前記循環流路を流れる循環水を使用する、住居、テナント、及び事務所の内の少なくとも一種からなる小口水需要体が複数集まって構成される水需要体、から排出される排出水を前記循環流路へ排出する排出流路と、
前記循環流路を流れる前記排出水を含む循環水を浄化する、複数の処理槽が接続されてなる浄化手段と、
前記浄化手段で浄化された循環水を前記水需要体に供給する供給流路と、
請求項1~8何れか一項に記載の循環水利用システムの安全装置と、を含む
循環水利用システム。
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- 2014-12-04 US US15/100,884 patent/US9783963B2/en active Active
- 2014-12-04 MX MX2016007233A patent/MX2016007233A/es unknown
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MX2016007233A (es) | 2016-09-07 |
US20160281338A1 (en) | 2016-09-29 |
JP5563142B1 (ja) | 2014-07-30 |
JP2015108252A (ja) | 2015-06-11 |
US9783963B2 (en) | 2017-10-10 |
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