JP4384572B2 - Water recycling equipment - Google Patents

Description

  The present invention relates to a water treatment technique, and more particularly to a construction technique of a water reuse device that supplies wastewater reuse water to a water reuse destination.

Conventionally, a water treatment technique for reusing wastewater discharged from a general household or the like is known (for example, see Patent Document 1 below).
In the wastewater treatment apparatus of Patent Document 1, domestic wastewater such as laundry wastewater, washwater wastewater, bathroom wastewater, and kitchen wastewater is received and purified by the septic tank, and the treated water and wastewater with relatively low dirt after washing are washed in the toilet. It is designed to be reused for water. Moreover, in such a septic tank, when the water level of the storage part where the treated water before being supplied to the water reuse destination such as a flush water tank of the toilet is stored is below a predetermined water level, the water is automatically supplied to the storage part. Generally, it is configured to replenish the water and thereby secure the amount of water supplied to the water reuse destination.
JP 2001-29973 A

However, although the septic tank with the above configuration is surely effective in reusing wastewater, the user can confirm that the wastewater is reused because the water supply is automatically replenished to the reservoir. Although it cannot be recognized directly, it has a problem that it can not be satisfied one step further with respect to the reuse of waste water despite the introduction of a water reuse system.
Therefore, the present invention has been made in view of such points, and in a water recycling apparatus that supplies wastewater reused water to a water reuse destination, the user can directly recognize that the wastewater is reused. Therefore, it is an object to provide a technique that can give satisfaction to the user.

  The present invention is configured to solve the above problems. In addition, this invention is used suitably as construction technology of the water treatment apparatus which processes various to-be-treated waters, such as domestic waste water discharged | emitted from a general household etc., and rainwater.

(First invention of the present invention)
A first invention of the present invention that solves the above-described problems is a water recycling apparatus as described in claim 1.
The water reuse device according to claim 1 is a device for supplying wastewater as reused water to a water reuse destination, wherein the storage unit, drainage supply means, stored water supply means, clean water supply means, clean water At least supply state detection means and notification means are provided. The “drainage” mentioned here includes wastewater discharged from various facilities including domestic wastewater discharged from ordinary households. This “drainage” may include treated water that has undergone a predetermined treatment such as a purification treatment, or may be the wastewater itself before the treatment. Typically, among waste water, it is preferable to reuse waste water having a relatively low concentration of pollutants, such as bathroom waste water, bathroom waste water, and laundry waste water.

  The storage part of this invention is comprised as an area | region which stores the water before supplying to a water reuse destination. The waste water supply means of the present invention is a means having a function of supplying waste water to the storage section. The stored water supply means of the present invention is a means having the ability to supply the stored water stored in the storage part to the water reuse destination as reused water. Specifically, the stored water supply means is configured using a connection pipe and a transfer pump that connect the storage unit and the water reuse destination. The water supply means of the present invention is a means having a function of supplying water (water supplied from the water supply) to the stored water in the storage section. The water supply state detection means is a means having a function of detecting that the water supply means is in the water supply state.

The notification means of the present invention notifies whether the water supplied from the storage part to the water reuse destination is either the drainage supply state or the water supply state based on the detection information by the water supply state detection means. It is a means which has the function to do. Specifically, when the water supply state detection means detects that the water supply means is in the water supply state, it can be determined that the water in the reservoir is being supplied, At this time, the notifying means notifies that the water supplied from the storage part to the water reuse destination is in the water supply state. On the other hand, if the clean water supply state detection means does not detect that the clean water supply means is in the clean water supply state, it can be determined that clean water is not being supplied to the water in the reservoir, and at this time The notifying means notifies that the water supplied from the unit to the water reuse destination is in the state of wastewater supply. The “water supply state” here refers to a state in which the water supplied from the storage unit to the water reuse destination is mainly water. The “drainage supply state” refers to a state where the water supplied from the storage unit to the water reuse destination is mainly drainage, that is, a state where the wastewater is reused. The drainage in this wastewater supply state may be in a state where the pollutant concentration is substantially uniform, or in a state where the pollutant concentration changes with time. Thereby, the user can directly recognize whether or not the wastewater is reused by the notification operation of the notification means, and the user who directly recognizes that the wastewater is reused can recycle the wastewater. You will be satisfied with your usage.
Therefore, according to such a configuration of the water reuse device according to claim 1, the user is directly recognized by the notification operation of the notification means that the wastewater is being reused, thereby satisfying the user. A feeling can be given.

  As for the configuration of the notification means in the present invention, a configuration using a display device such as a lamp, an LED, a liquid crystal, a configuration using a sound output device such as a speaker that outputs sound, voice, etc. The structure which combined these can be taken.

(Second invention of the present invention)
A second invention of the present invention that solves the above problem is a water recycling apparatus as set forth in claim 2.
The water recycling apparatus according to claim 2 is configured such that at least one of bathroom drainage and laundry drainage flows as drainage. In this configuration, either one of bathroom drainage or laundry drainage flows, or both bathroom drainage and laundry drainage flows, and in addition to bathroom drainage and laundry drainage, other than these bathroom drainage and laundry drainage A mode in which wastewater flows is also included. These bathroom wastewater and laundry wastewater are relatively abundant amounts of wastewater that allow the user to arbitrarily set the discharge (release) timing.
Therefore, according to such a configuration of the water reuse device according to the second aspect, the user can arbitrarily determine the discharge timing of the bathroom drainage or the laundry drainage based on the notification operation of the notification means. Specifically, when the notification means performs a notification operation at the timing when the water supply state is set, or when the timing when the water supply state is predicted in advance, the user drains the bathroom according to the timing. In addition, by discharging (releasing) laundry wastewater, it is possible to efficiently secure reuse water for bathroom wastewater and laundry wastewater.

(Third invention of the present invention)
A third invention of the present invention that solves the above problem is a water recycling apparatus as set forth in claim 3.
In this water recycling apparatus according to claim 3, the storage section of claim 2 is configured such that the storage capacity is less than the daily average reused water amount. The “daily average reused water amount” here is an average value of the reused water amount supplied to the water reuse destination per day, and this value is a standard value assumed in advance in each household and each facility. It is preferable to use a different value. The configuration in which the storage capacity of the storage unit is lower than the daily average reused water amount as in the present invention is effective in reducing the storage capacity of the storage unit and making the water recycling device compact, while the bathroom drainage and washing drainage are not used. If the timing of discharging (releasing) and the timing of supplying reused water to the water reuse destination are shifted, it becomes easier to form a water supply state (a wastewater reuse state is less likely to be formed). Therefore, if the notification means of the present invention is used in such a case, the drainage of the bathroom drainage or the washing wastewater is discharged by the operator discharging (releasing) the bathroom drainage or the washing drainage in response to the notification operation of the notification means. (Discharge) timing can be matched with the timing of supplying reused water to the water reuse destination, and even when the storage capacity of the storage unit is suppressed thereby, it is difficult to form a water supply state ( It is possible to easily form a reuse state of waste water).
Therefore, according to such a configuration of the water reuse device according to claim 3, the water reuse device can be made compact, and the notification means used when the water reuse device is made compact is bathroom drainage. It is particularly effective in efficiently securing reuse water for washing wastewater.

(Fourth invention of the present invention)
A fourth invention of the present invention that solves the above problem is a water recycling apparatus as described in claim 4.
In this water recycling apparatus according to claim 4, the water replenishment information detecting means according to any one of claims 1 to 3 is configured using an open / close control valve or a flow sensor. The opening / closing control valve has a function of controlling opening / closing of the water supply path with respect to the reservoir. The term “open / close control valve” as used herein is intended to include a wide range of control valves for opening and closing the water supply path, and control valves configured to only switch between the open state and the closed state, or the open state and the closed state. In addition to switching, a control valve having a variable opening / closing degree is included. When it is detected that the open / close control valve is in the open state, it is determined that the water supply means is in the water supply state, and when it is detected that the open / close control valve is in the closed state, It is determined that the water supply means is in the water supply stop state. The flow sensor has a function of detecting the flow of clean water flowing through the clean water supply path. The term “flow sensor” as used herein includes a wide range of sensors that detect the flow of clean water. Sensors that detect qualitatively only whether clean water is flowing in the clean water supply path, A sensor for quantitatively detecting the flow rate of clean water in the replenishment path is included. When it is detected by this flow sensor that there is a flow of clean water in the clean water supply path, it is determined that the clean water supply means is in a clean water supply state. When it is detected that there is no flow, it is determined that the water supply means is in the water supply stop state.
According to such a configuration of the water reuse device according to claim 4, the water supply information detecting means for detecting whether or not the water supply means is in the water supply state is provided with the open / close control valve and the flow sensor. It is possible to configure using

  As described above, according to the present invention, in particular, by using a configuration for notifying whether the water supplied from the storage unit to the water reuse destination is either the wastewater supply state or the clean water supply state, It is possible to make the user directly recognize that the wastewater is being reused, so that the user can be satisfied.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a water recycling apparatus 100 that performs treatment of waste water (treated water) discharged from a general household or the like will be described.

  FIG. 1 shows a schematic configuration of a water reuse device 100 which is an embodiment of a “water reuse device” in the present invention. Here, the case where this invention is applied to the waste water treatment for general households is demonstrated, referring FIG.

  A water reuse device 100 shown in FIG. 1 is a device that supplies domestic household wastewater to a water reuse destination (wash water tank of a toilet). As shown in FIG. 1, in the home, clean water (water from the water supply) is supplied to a clean water supply destination such as for washing, for toilets, for toilets, and for kitchens. This clean water can be supplied (supplemented) to a reused water tank body 101 to be described later through the clean water supply pipe 10. The water supply pipe 10 (corresponding to the “water supply path” in the present invention) is provided with an electromagnetic opening / closing control valve 146, and the opening / closing operation of the opening / closing control valve 146 leads to the reused water tank body 101. The state where water is replenished and the state where it is not replenished are switched. The opening / closing control valve 146 is configured to be controlled by the control unit 150 based on water level detection information from a water level sensor 144 provided in a water storage chamber 140 of the reuse water tank main body 101 described later. That is, the control unit 150 is configured to output a control signal to the opening / closing control valve 146, and opens the opening / closing control valve 146 when the water level of the water storage chamber 140 detected by the water level sensor 144 is lower than the reference water level. On the other hand, when the water level of the water storage chamber 140 detected by the water level sensor 144 reaches the reference water level, the open / close control valve 146 is controlled to be closed. Thereby, the water level in the water storage chamber 140 can be maintained.

The water recycling apparatus 100 according to the present embodiment accommodates various purification treatment mechanisms, which will be described later, inside a reused water tank main body 101 formed in a tank shape. The washing waste water and the wash surface waste water are collected in the confluence 20 and joined to the inflow pipe 102 of the reuse water tank main body 101 through the trap valve 22 together with the bathroom waste water. In particular, bathroom wastewater and laundry wastewater are relatively abundant amounts of wastewater that allow the user to arbitrarily set the discharge (release) timing. Drainage (hereinafter referred to as “drainage A”) flowing into the reused water tank body 101 through the inflow pipe 102 is drainage having a relatively low pollutant concentration. This drainage A usually contains a foam component derived from various cleaning wastewaters. The treated water purified by the purification mechanism in the reused water tank body 101 is taken as reused water (middle water) from a water storage chamber 140, which will be described later, and is recycled through the water intake pipe 104, the water supply pump 105, and the water supply pipe 106. It is supplied to the wash water tank of the toilet where it is used. Thus, the intake pipe 104, the water supply pump 105, and the water supply pipe 106 constitute a means for supplying the stored water stored in the water storage chamber 140 to the water reuse destination as reused water. It corresponds to “water supply means”.
Further, in the present embodiment, a connecting pipe 107 that connects the water supply pipe 10 and the water intake pipe 104 is provided, and the water flowing through the water supply pipe 10 is supplied to the water intake pipe 104, the water supply pump 105, and the water supply water. It is possible to supply to the wash water tank of the toilet through the pipe 106.

  On the other hand, toilet drainage is collected in the confluence 24 and further discharged into the sewer via the confluence 26 and 28 and the discharge basin 30 together with the kitchen wastewater. This wastewater (hereinafter referred to as “drainage B”) is wastewater having a relatively high pollutant concentration, and is generally difficult to use treated water as reused water (medium water). In general, the drainage B has a higher concentration load and a lower water load than the drainage A. This drainage B usually contains manure derived from toilet drainage.

  Moreover, in this Embodiment, the operation panel 160 is provided, for example in the toilet room. The operation panel 160 includes a display lamp 162 and other buttons and switches (not shown). The display lamp 162 is configured using a known lamp, LED, liquid crystal, or the like. The control unit 150 is electrically connected to the operation panel 160 and controls the lighting state of the display lamp 162 based on the opening / closing information of the opening / closing control valve 146. Specifically, the display lamp 162 is turned on when the open / close control valve 146 is in the closed state, and the display lamp 162 is turned off when the open / close control valve 146 is in the open state. The closed state of the open / close control valve 146 is a state where clean water is not replenished to the water storage chamber 140 of the reused water tank body 101, that is, a state where domestic wastewater is reused as reused water (medium water) (in the present invention). Corresponding to “Wastewater supply status”). On the other hand, the open / close control valve 146 is in an open state in which clean water is supplied to the water storage chamber 140 of the reused water tank body 101, that is, in a state where domestic wastewater is not reused as reused water (medium water). This corresponds to the “water supply state” in the invention). As described above, the open / close control valve 146 can detect the state of water supply to the water storage chamber 140 based on the open / close state, and corresponds to the “water supply state detection means” in the present invention. Yes.

  Therefore, in the present embodiment, the user can live by turning on the display lamp 162 in the closed state of the open / close control valve 146 indicating that the water is not being supplied to the water storage chamber 140 of the reused water tank main body 101. This made it possible to directly recognize that wastewater is being reused. In the present embodiment, “ECO” is written on the display lamp 162, and the characters “ECO” are highlighted when the lamp is turned on. Thereby, a user will recognize water reuse more strongly. As described above, the display lamp 162 according to the present embodiment is configured so that the water supplied from the water storage chamber 140 to the water reuse destination (toilet flush water tank) is based on the information indicating the open / closed state of the open / close control valve 146. It is configured as means for notifying whether the state is a wastewater supply state (a state mainly composed of middle water) or a clean water supply state (a state mainly composed of clean water). Is supported.

  Here, the structure of the purification treatment mechanism in the reuse water tank main body 101 is shown in FIG. As shown in FIG. 2, the reuse water tank main body 101 includes a contact aeration chamber 110, a sedimentation chamber 120, in order from the upstream side (left side in FIG. 2) corresponding to the order of the processing steps as a purification processing mechanism. A disinfection chamber 130 and a water storage chamber 140 are provided.

  The contact aeration chamber 110 has a contact material filling section 112, and the contact material filling section 112 is filled with a predetermined amount of contact material C1 to which aerobic microorganisms that aerobically treat (oxidize) organic pollutants adhere. ing. When the water to be treated repeatedly passes through the contact material filling section 112, the organic pollutant in the water to be treated is decomposed and BOD is removed. The contact aeration chamber 110 is provided with a foam separation device 114. In the foam separation device 114, the aeration / foam separation air supplied from the blower 118 is diffused into the room through the air diffusion tube 116, whereby the foam component in the water to be treated becomes foam. This foam flows into the discharge basin (discharge basin 30 in FIG. 1) through the overflow pipe 103 together with the overflow water, and then is discharged to the sewer. At this time, a part of SS (floating matter) is also removed.

  The sedimentation chamber 120 includes an inclined portion 122 whose bottom portion is inclined, and the inclined portion 122 has a low height on the side of the contact aeration chamber 110 (the water depth is deep). The inclined portion 122 has a function of precipitating and separating SS (floating matter) generated in the contact aeration chamber 110 and transferred to the sedimentation chamber 120 through the advection opening to the bottom of the contact aeration chamber 110. . The water in the sedimentation chamber 120 is transferred to the disinfection chamber 130 after the flow rate is adjusted via, for example, a float type flow rate adjustment device 124.

  The disinfection chamber 130 includes a disinfectant injection device 132, and the disinfectant injection device 132 performs disinfection processing of water flowing from the sedimentation chamber 120, and the water after disinfection is transferred to the water storage chamber 140. The “drainage supply means” in the present invention is constituted by a mechanism for purifying the drainage A received into the reused water tank main body 101 through the inflow pipe 102 and supplying it to the water storage chamber 140.

  The water storage chamber 140 is an area for temporarily storing water before being supplied to a water reuse destination, and corresponds to a “reservoir” in the present invention. The water storage chamber 140 is provided with a water supply device 142. The water supply device 142 has a function of supplying “water” from the water supply according to the water level of the water storage chamber 140. This water supply device 142 corresponds to the “water supply means” in the present invention. The water supply device 142 includes a water level sensor 144 having a known configuration (not shown). The water level sensor 144 has a function of detecting information related to the water level of the water storage chamber 140 and is electrically connected to the control unit (the control unit 150 in FIG. 1) so as to transmit the detection information to the control unit. It is configured.

  In the present embodiment, the storage capacity of the water storage chamber 140 is configured such that the storage capacity is less than the daily average reused water amount (average value of the reused water amount per day). Is planned. For example, when the daily average reused water amount assumed in advance in a family of five is 300 liters, the storage capacity of the water storage chamber 140 is set to a value lower than 300 liters.

As described above, according to the water reuse apparatus 100 of the present embodiment, the domestic wastewater is generated by the configuration in which the display lamp 162 is turned on particularly when the domestic wastewater is reused as reused water (medium water). The user can directly recognize that it is being reused, thereby enhancing the user's satisfaction.
In particular, in the present embodiment, the discharge timing of bathroom drainage and laundry wastewater can be arbitrarily determined based on the lighting mode of the display lamp 162. For example, when the display lamp 162 is turned off at the timing when the water supply state is set, or when the timing when the water supply state is predicted in advance, the user can set the bathroom drainage or laundry drainage according to the timing. By discharging the water, it becomes possible to efficiently secure reuse water for bathroom drainage and laundry drainage.

  Moreover, according to this Embodiment, it can be recognized indirectly by the lighting mode of the display lamp 162 whether the water of the water storage chamber 140 is insufficient. Specifically, when the display lamp 162 is lit, water in the water storage chamber 140 is secured, while when the display lamp 162 is off, it is recognized that the water in the water storage chamber 140 is insufficient. The Therefore, when the indicator lamp 162 is turned off, the user tries to discharge (discharge) drainage (washing drainage, bathroom drainage, etc.) in accordance with the timing of water use in the toilet. Can be secured efficiently.

  Further, according to the present embodiment, the storage capacity of the water storage chamber 140 is configured to be smaller than the daily average reused water amount, thereby suppressing the storage capacity of the water storage chamber 140 and making the water reuse device 100 compact. Is possible. On the other hand, if the timing of discharging (releasing) bathroom drainage and washing wastewater is different from the timing of supplying reused water to the water reuse destination, the water supply state will be easily formed (the wastewater reuse state will be formed) However, in response to the notification operation of the display lamp 162 of the present embodiment, the operator discharges (discharges) the bathroom drainage and laundry wastewater, thereby discharging (discharging) the bathroom drainage and laundry drainage. And the timing for supplying the reused water to the water reuse destination can be matched, so that even when the storage capacity of the water storage chamber 140 is suppressed, it is difficult to form a water supply state (water reuse state). Can be easily formed).

  Further, according to the present embodiment, since the lighting of the display lamp 162 is interlocked with the operation of the water supply device 142, the operating state of the water supply device 142, for example, the occurrence of an abnormality, depending on the lighting mode of the display lamp 162. Can be grasped. Specifically, it is effective for grasping the situation where the supply of clean water does not stop due to the failure of the clean water supply device 142 and the situation where the advection from the settling chamber 120 to the water storage chamber 140 is not performed. is there.

[Other Embodiments]
In addition, this invention is not limited only to said embodiment, A various application and deformation | transformation can be considered. For example, each of the following embodiments to which the above embodiment is applied can be implemented.

  In the above embodiment, the case where the user is visually informed that the domestic wastewater is reused by turning on the display lamp 162 has been described. However, in the present invention, the domestic wastewater is blinked or turned off. It may be possible to visually notify the user that is being reused. Moreover, in this invention, you may make it alert | report by the indicator which displays a character, a number, a design, etc. using LED and a liquid crystal. Furthermore, a mode in which an auditory notification is made by sound or sound output from a speaker or the like, a mode in which a visual notification mode (including lamps, characters, numbers, designs, etc.) and a mode in which an alarm notification is made are combined. Can be taken.

  Moreover, in the said embodiment, although the case where it detected that the water supply to the reuse water tank main body 101 was supplied based on the opening / closing state of the opening / closing control valve 146 was described, in this invention, the reuse water tank main body Another configuration may be used as means for detecting that the water is replenished in 101. For example, a flow sensor (corresponding to the “flow sensor” in the present invention) having a known configuration that qualitatively or quantitatively detects that water is flowing in the water supply pipe 10 is used. It can be configured to determine that the reused water tank body 101 is supplied with clean water when clean water is flowing. Such a flow sensor can also detect the state of water supply to the water storage chamber 140 in the same manner as the open / close control valve 146, and corresponds to the “water supply state detection means” in the present invention. Yes. When this configuration is adopted, instead of the combination of the water level sensor 144 and the open / close control valve 146, so-called “ball tap” that mechanically switches the supply of the water supply by the float moving up and down according to the water level of the water storage chamber 140. Can also be used.

  Moreover, although the said embodiment demonstrated the water treatment technique which reuses the domestic wastewater discharged | emitted from a general household etc. as an example, this invention reuses various waters, such as a domestic wastewater, and rainwater. It can be applied to water treatment technology. Further, the domestic waste water may be reused as water for washing a car or water for watering a garden or the like other than the washing water of the flush toilet.

It is a figure which shows schematic structure of the water reuse apparatus 100 which is one Embodiment of the water reuse apparatus in this invention. It is a figure which shows the structure of the purification process mechanism in the reuse water tank main body 101 in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Water reuse apparatus 101 ... Reuse water tank main body 102 ... Inflow pipe 103 ... Overflow pipe 104 ... Intake pipe 105 ... Water intake pump 106 ... Water supply pipe 110 ... Contact aeration chamber 116 ... Aeration pipe 118 ... Blower 120 ... Settling chamber 130 ... Disinfection room 140 ... Water storage room 142 ... Water supply device 144 ... Water level sensor 146 ... Open / close control valve 150 ... Control unit 160 ... Operation panel 162 ... Display lamp

Claims (4)

A water reuse device for supplying wastewater reuse water to a water reuse destination,
A reservoir for storing water before being supplied to a water reuse destination;
Waste water supply means for supplying waste water to the storage unit;
Reserved water supply means for supplying the water stored in the storage part to the water reuse destination as reused water;
Water supply means for supplying water to the stored water in the storage part;
Water supply state detection means for detecting that the water supply means is in a water supply state;
Informing means for informing whether the water supplied from the storage unit to the water reuse destination is either a drainage supply state or a water supply state based on detection information by the water supply state detection means ,
A water recycling apparatus comprising: The water recycling apparatus according to claim 1,
A water recycling apparatus configured to allow at least one of bathroom wastewater and laundry wastewater to flow as wastewater. The water recycling apparatus according to claim 2,
The said storage part is comprised so that the storage capacity may be less than the daily average reuse water amount, The water reuse apparatus characterized by the above-mentioned. The water recycling apparatus according to any one of claims 1 to 3,
The water supply replenishment state detecting means is configured by using an open / close control valve that opens and closes a water supply replenishment path with respect to the reservoir, or a flow sensor that detects a flow of water flowing through the water supply replenishment path. Water reuse device characterized by.

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