JP2001029970A - Household wastewater regenerating and utilizing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for efficiently and simply cleaning wastewater generated from a bath, a washing machine and a lavatory to regenerate and reutilize the cleaned water as washing water of a toilet. SOLUTION: The household wastewater regenerating and utilizing apparatus is equipped with a cleaning treatment means 21 for recovering wastewater from a plurality of places of a house to clean the same, a storage means 11 for temporality storing cleaned water individually along with wastewater before cleaning treatment, a sterilizing treatment means 31 for sterilizing the cleaned water stored in the storage means before using the same at a predetermined use place, a single feed means 41 for feeing wastewater and cleaned water to a predetermined place, a quantitative water supply means 23 for quantitatively supplying wastewater to the cleaning treatment means 21 from the flow channel of the single feed means and a control means 53 for controlling the driving of the above mentioned means and wastewater can be simply cleaned to be utilized as washing water of a toilet 61.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a wastewater recycling apparatus which makes it possible to easily purify and reuse wastewater drained from a bath, a washing machine, and a lavatory in a general household.

[0002]

2. Description of the Related Art Conventionally, so-called domestic wastewater drained from kitchens and toilets of general households is directly discharged into a sewer without being treated if the sewage system is fully equipped. If they were not completely equipped, they had to be subjected to primary treatment in a septic tank before being discharged into a sewer, so there was almost no reuse of household wastewater. On the other hand, as a water-saving measure, for example, the use of remaining hot water from a bath for washing water and watering to a garden has been often performed until now, but this is merely a reuse of remaining hot water, and It wasn't about recycling.

On the other hand, in recent years, in apartment houses, large-scale housing complexes, buildings, and the like, all domestic wastewater such as kitchen wastewater and toilet wastewater is subjected to purification and sterilization treatment, and the treated water is used as intermediate water in the area, for example. Wastewater recycling facilities that can be reused as flushing water for toilets have been gradually adopted.

[0004]

However, in the above-mentioned wastewater recycling facility, since the wastewater from the kitchen and the toilet are included, the wastewater is subjected to an advanced purification treatment technology for the purification treatment and the sterilization treatment. Because it is necessary and because it is reused by treating wastewater from an unspecified number of households, it is designed in consideration of not giving psychological resistance to reusers, The equipment itself becomes large-scale, which not only increases the manufacturing cost, but also requires a great deal of maintenance and management costs, and it has been extremely difficult to adopt the equipment for a general household (detached house). .

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a compact wastewater recycling apparatus that can easily and efficiently treat low-contamination wastewater generated in ordinary households at low cost. is there.

[0006]

According to the present invention, in order to achieve the above object, a household wastewater recycling apparatus according to claim 1 collects wastewater generated at home and collects the collected wastewater. Purification treatment means for purifying the waste water, storage means for temporarily temporarily storing the purified waste water together with the waste water before the purification treatment, and sterilization for sterilizing the stored purified waste water. Treatment means, and a single feeding means for feeding the gray water and the purified treated water to a predetermined place,
A fixed water supply means for quantitatively feeding the wastewater to the purification processing means in the flow path of the single feeding means, and a control device for controlling the driving of each means are provided.

[0010] In a second aspect of the present invention, there is provided a household wastewater recycling apparatus according to the first aspect of the present invention, wherein the wastewater purification treatment means is configured to quantitatively supply the wastewater to an upper part of a filter tube. An air supply means for supplying, from a lower side of the filter cylinder, air necessary for biological treatment and prevention of suspended matter sedimentation from a lower side of the filter cylinder, wherein a constant amount of miscellaneous wastewater is supplied from an upper side of the filter cylinder with a water supply means It comprised comprising.

According to a third aspect of the present invention, there is provided the household wastewater reclamation apparatus according to the second aspect, wherein the air supply means is cooled by treated water flowing out of the filter tube to reduce the temperature. A sensor for detecting the occurrence and detecting a failure of the air supply means is provided.

According to a fourth aspect of the present invention, there is provided a household wastewater recycling apparatus according to the first aspect, wherein the single feed means for the wastewater or the like is constituted by a single electric pump. At the same time, the electric pump is provided with a drive state detecting means so that the supply state of water such as purified water can be controlled.

[0010] According to a fifth aspect of the present invention, there is provided the household wastewater reclamation apparatus according to the first aspect, wherein the control apparatus includes a case where the wastewater reclamation apparatus is not used for a predetermined number of days. When the number of times of use of the purified water is exceeded per day, when the remaining amount of the purified water is equal to or less than a predetermined amount of water, and when the purified water cannot be supplied to the place of use in a fixed amount, A control program for forcibly stopping the driving of the electric pump is provided.

According to a sixth aspect of the present invention, there is provided the household wastewater recycling apparatus according to the first or fifth aspect, wherein the control device displays a failure or abnormal condition of the wastewater recycling apparatus. And a control program for displaying a failure mode and an abnormal mode to be displayed.

According to a seventh aspect of the present invention, there is provided the household wastewater reclamation apparatus according to the first aspect, wherein the sterilization processing means electrolyzes a sterilizing metal ion as a sterilization means to the control device. The pair of electrodes to be formed was provided with a control program for converting the polarity every time the bactericidal metal ions were electrolytically eluted and for energizing.

According to an eighth aspect of the present invention, there is provided the household wastewater recycling apparatus according to the first aspect, wherein the sterilization treatment means comprises an electrode for causing the control device to electrolyticly elute sterilizable metal ions. A control program for detecting the replacement time is provided.

According to a ninth aspect of the present invention, there is provided the household wastewater recycling apparatus according to the first aspect, wherein the wastewater and the purified water are separately stored by dividing one storage tank into a plurality of storage tanks. Then, the storage tank and the air supply means were connected by piping with an air supply pipe, so that the storage tank could be constantly aerated.

According to a tenth aspect of the present invention, there is provided the household wastewater reclamation apparatus according to the first aspect, wherein the treated water supply pipe for supplying the purified treated water to a storage tank comprises:
A part of the treated water feed pipe was pulled up to the highest water position in the filter tube and connected to the pipe.

According to the present invention, a relatively small amount of dirty water discharged from a bath, a wash basin, a washing machine, or the like is temporarily stored, and once the gray water is quantitatively stored, the wastewater is purified by a purifying means. After the treated purified water is stored by the storage means, it is used as wash water for the toilet when necessary, and the treated water that has been fed to the wastewater purification treatment means and purified is discharged from the storage means. All the means for feeding to the toilet should be performed using a single feeding means, that is, one pump, and the amount of miscellaneous wastewater supplied to the purification treatment means should be able to supply only the amount that can be treated. Therefore, the configuration of the wastewater reclamation and recycling apparatus for handling the relatively dirty wastewater can be simplified, and the purification treatment means may always purify a fixed amount of the wastewater. Good purification treatment It can, it is possible to perform the installation in homes of this kind device at low cost.

The purifying means for purifying the waste water is provided with the inflow direction of the waste water and the inflow direction of the outside air, respectively, in opposite directions. The wastewater such as dirt and microorganisms adhering to the sewage can be sieved out to filter the wastewater smoothly, and the purification treatment capacity of the purification treatment means can be improved. The miniaturization can be performed favorably, and the cost of the apparatus can be easily reduced.

According to the present invention, the control device is provided with the function of stopping the backwashing function when the wastewater recycling apparatus is not used for a preset number of days, and when the number of times of use of the purified water is exceeded, or when the purified water is not used. When the remaining amount is insufficient,
In the case that purified water cannot be supplied to the place of use,
A control program for forcibly stopping the driving of the pump,
Furthermore, since a control program for displaying the failure and abnormal situation of the wastewater recycling device on the display means is provided, it is easy to prevent the overload operation of the electric pump and to grasp the failure content of the device, and the like of the device itself. Maintenance management can be performed smoothly and well.

Further, in the present invention, the wastewater and the purified water are stored by dividing one storage tank into two, and outside air is always supplied to each storage tank to prevent contamination of the wastewater. And the aerobic maintenance is performed satisfactorily, and at the time of using the purified water, since the degree of sterilization of the treated water by the sterilizing means can be always grasped, the treated water is always used in a clean state. It is possible and sanitary.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a schematic configuration of a wastewater recycling apparatus A of the present invention.
The wastewater generated in the washing machine 2 and the washroom 3 is once collected in the storage means 11, and the collected wastewater is purified and treated by the purification means 21.
To produce purified treated water, and the purified treated water (hereinafter referred to as treated water) is temporarily stored in the storage means 11 again. And then reused as washing water.

Next, the structure of the wastewater recycling apparatus A of the present invention will be described. The apparatus A can be roughly classified into the above-mentioned miscellaneous wastewater storage means 11, a purification treatment means 21 for purifying the miscellaneous wastewater to produce treated water, and a sterilizing treatment of the treated water as washing water for the toilet 61. Sterilization processing means 31 to be used, a single feeding means 41 for feeding the wastewater or treated water to a predetermined place, a quantitative water supply means 23 for quantitatively supplying the wastewater to the purification processing means 21, The control device 53 for driving and controlling each means is roughly configured.

Next, the detailed structure of each means of the wastewater recycling apparatus A will be described. First, as shown in FIGS. 1 and 2, storage means 11 for collecting and temporarily storing wastewater discharged from a bath 1, a washing machine 2, and a washroom 3 and treated water obtained by purifying the wastewater. Is 2 by the partition wall 13
Storage tank 1 divided into rooms and installed in the soil or on the floor
The storage tank 12 includes the partition wall 13
Thus, a drainage tank 12a for collecting wastewater is formed on one side, and a processing tank 12b for collecting treated water is formed on the other side. And the drainage tank 12a of the storage tank 12
, Drain water from bath 1 etc., each filter 1
When the waste water flows into the drainage tank 12a or higher through the collection pipe 14 for preventing the outflow of hair, foreign matter, etc., through the wastewater drain pipe 12a, the wastewater drain pipe 15 communicates with a sewer (not shown). An overflow pipe 16 that is connected to allow the overflowed wastewater to flow out to the sewer is connected.

The drain tank 12a includes a tank 1
Float switch 17a for detecting the lowest water level of miscellaneous wastewater in 2a, and float switch 17b, 17c for detecting the lowest and highest water level in tank 12b, respectively, are separately installed in treatment tank 12b. The water level in the tank 12 is detected and displayed on a water level display means described later. In addition, an overflow port 13a that allows the treated water to overflow into the drainage tank 12a in the event that the treated water in the treatment tank 12b excessively flows into the partition wall 13 is opened.

Next, a purification treatment means 21 for purifying the waste water.
Will be described. As shown in FIG. 2, the purification processing means 21 has a bottomed cylindrical filter tube 22 having a lower portion formed in an inverted conical shape, and is attached to the upper portion of the body of the filter tube 22 to be attached to the filter tube 22. A flow rate control valve 23 as a quantitative water supply means for quantifying the flow rate of the inflow of miscellaneous wastewater, and a filter medium 24 stacked and housed in the filter tube 22 so as to be able to be taken out in a plurality of stages in the vertical direction; And a cover body 25 for closing the upper open end of the cover 22 so as to be openable and closable.

For the filter medium 24, for example, a support stone 27 made of large diameter quartz having a diameter of about 10 mm or more is laid on the bottom surface of the cage 26, and the diameter is set on the support stone 27. It is configured by laying anthracite 28 having a small diameter of about several mm.
Microorganisms for ingesting dirt components in miscellaneous wastewater flowing into the filter tube 22 are attached in a film form.

The storage means 11 and the purification treatment means 21 are connected by a piping system for purifying gray water and refluxing reusable treated water. One end of the storage means 11 is suspended between the drainage tank 12a and the filter tube 22 near the bottom surface of the drainage tank 12a. A drainage supply pipe 29 connected to the flow control valve 23 is connected to the pipe. One end of the drainage supply pipe 29 is connected to the bottom of the filtration cylinder 22 between the filtration cylinder 22 and the processing tank 12b of the storage unit 11, and the tip is connected to the bottom. A treated water supply pipe 30 for storing (returning) the treated water suspended and purified into the treatment tank 12b is connected to the treatment tank 12b.

As shown in FIG. 2, the treated water supply pipe 30 transfers treated water purified by the filter tube 22 to the highest water level position (above the filter medium 24 in the filter tube 22). (In the vicinity of the discharge port of the flow rate control valve 23), and then is lowered so as to be discharged to the processing tank 12b. That is, the treated water supply pipe 30
Is held at the same height position as the water level of the filter tube 22, the water level in the filter tube 22 can be changed from the filter tube 22 to the process water feed pipe 30, for example, as described later. Since the treated water is held at the height position of the highest position of the treated water supply pipe 30 except for the case where the treated water flows into the air supply pipe 47 → the air supply pipe 47 due to the failure of the blower 43,
When the purifying process is stopped, it is possible to reliably avoid the problem that the water in the filter tube 22 flows down due to the siphon phenomenon and hinders the maintenance of the activity of the microorganisms attached to the filter medium 24. The highest position of the treated water supply pipe 30 and the sewage drainage pipe 15 are connected by an exhaust pipe 30b.

In the middle of the drainage supply pipe 29, FIG.
As shown in drainage first electromagnetic three-way valve from the tank 12a toward the filtration cylinder 22 (also all below described three-way valve is an electromagnetic type, simplified to as three-way valve) and V _1, gray water, A single feeding means (hereinafter referred to as an electric pump) 41 comprising an electric pump for feeding the treated water to a predetermined place;
The second and third three-way valves V ₂ and V ₃ are connected to the drain supply pipe 2 respectively.
Nine pipes are connected at required positions. Further, a treated water supply pipe 30 connected by piping between the filtration tube 22 and the treatment tank 12b.
Is connected to a _fourth three-way valve V4. Furthermore, with the top of the filtration cylinder 22 (cover member 25), between the fourth three-way valve V ₄ which is mounted on the treated water subjected flue 30 is filtered barrel 2
A cleaning drainage pipe 42 for draining the cleaning drainage generated when cleaning 2 into the sewage drainage pipe 15 is connected via a _fifth three-way valve V5.

In the vicinity of the bottom of the filter cylinder 22, FIG.
As shown in (1), a blower 43 is provided as air supply means for feeding air upward from the lower part of the filter tube 22 to maintain the activity of microorganisms attached to the filter medium 24 and to suppress sedimentation of suspended matter. and which, air ejected from the blower 43, the check valve 44, a sensor for detecting a failure of the blower 43 (e.g., self-heating type thermistor) 45, and a first solenoid valve M ₁ and the pipe connection filtered The air is constantly supplied to the filtration tube 22 through an air ejection tube 46 connected to the tube 22.

Furthermore, the middle of the air ejection pipe 46 to one end in (between the sensor 45 and the solenoid valve M ₁₎ and the pipe connection, the tip drainage tank 12a via the solenoid valve M _2, processing tank 1
The air supply pipe 47 is branched to near the bottom surface of the air supply pipe 2b, the air from the blower 43 is diverted from the air ejection pipe 46 to the air supply pipe 47, and the air is supplied to the air supply pipe 47. Air discharge pipes 48a, 48b attached to the tip
By discharging the wastewater, air is supplied to the drainage tank 12a to prevent sedimentation of suspended solids and to prevent a decrease in the dissolved oxygen (DO) of the gray water, and the treatment tank 12b maintains the purification effect of the treated water. Supply air for

As shown in FIG. 6, the sensor 45 for detecting a failure of the blower 43 is, for example, a self-heating type thermistor 45a connected to a DC power supply, and divides the resistance value of the thermistor 45a. Voltage dividing resistors R ₁ , R ₂
And a resistor R ₃ for setting a CR constant and a capacitor C ₁ connected in series between the connection point of the voltage dividing resistors R ₁ and R ₂ and the ground, and as long as air is normally blown from the blower 43, Since the thermistor 45a is less likely to be adversely affected by the heat generation effect due to the energization, the resistance value decreases due to the temperature rise. However, when the blowout of the air is stopped due to the failure of the blower 43, the air flows through the air discharge pipe 46 from the filter tube 22. And cooled by the incoming treated water.

As a result, the heating effect of the thermistor 45a is inhibited by the cooling action of the treated water, and the resistance value increases. The voltage generated at both ends of the thermistor 45a having the increased resistance value is divided by the voltage dividing resistors R ₁ and R ₂ , and the divided voltage is input to a microcomputer 54 of the control device 53 described later. If the reference value exceeds a preset reference value, the control device 53 determines that the blower 43 has failed, cancels the power supply command to the blower 43, and prevents the blower 43 from burning out. In this example, the failure detection of the blower 43 is performed about twice a day. This is only because the thermistor 45a cannot be cooled suddenly, and when the blower 43 fails due to a short circuit, a safety device such as a safety breaker operates to prevent the blower 43 from being burned out. The failure of the blower 43 is displayed on the display means 71 (see FIG. 3).

When the blowout of air is stopped due to the failure of the blower 43, the treated water flowing into the air blowout pipe 46 is prevented from entering the blower 43 by the check valve 44. The gas flows from the ejection pipe 46 to the air supply pipe 47, and is discharged from the air discharge pipes 48a, 48b connected to the end of the air supply pipe 47 to the drainage and treatment tanks 12a, 12b. In FIG. 2, adjustment valves 49a and 49b for manually adjusting the amount of air discharged into the gray water and the treated water are attached to the air supply pipe 47 suspended from the drainage tank 12a and the treatment tank 12b, respectively. .

Next, the treated water is sterilized and the treated water is disinfected.
The sterilization processing means 31 for passing water through 1 will be described. The sterilizing means 31 is configured by disposing a pair of electrodes made of silver or copper in a not-shown electrolytic sterilizing tank. That is, in the electrolytic sterilization tank, for example, as shown in FIG. 5, a spacer 32 having excellent water resistance and insulation properties is disposed at the innermost portion so as to form a flow path 33 of the treated water. A pair of metallic electrodes (plate) 34 made of silver or copper are provided at the bottom.
a and 34b are disposed, a metal plate 35a having excellent corrosion resistance and a seal paper 36a are mounted on one electrode 34a, and a metal plate 35b having high corrosion resistance is mounted on the lower side of the other electrode 34b.
And the sealing rubber 36b, the electrodes 34a, 34
A closing plate (not shown) provided with an inflow and an outflow of treated water separately from above and below in the direction b is arranged, and the closing plates are fixed to each other to form an electrolytic sterilization tank having a watertight structure.

The inflow port and the outflow port provided on the not-shown closing plate are provided with gaps (flow passages 33) between the spacers 32, 32 interposed between the electrodes 34a, 34b, respectively.
It is configured such that the treated water can be circulated in communication with the water.
The electrodes 34a and 34b themselves are connected to a DC power supply 62. The sterilization treatment means 31, as shown in FIG. 2, the treated water used tube 63 hanging down in the processing tank 12b, the first three-way valve V _1, the drainage supply tube 29, the electric pump 41, a second three-way valve V ₂ , treated water flow pipe 65 connected with check valve 64
Are connected so as to be able to communicate with each other.

The treated water in the treatment tank 12b is subjected to a disinfection treatment by the disinfection means 31 if necessary, and then is connected to an electrolytic disinfection tank (not shown) of the disinfection treatment means 31 and the low tank 61a of the toilet 61. Water passage 66
Is supplied to the raw tank 61a. That is, the treated water is used as washing water for the toilet 61.
The low tank 61a of the toilet 61 has a float switch 17d and a ball tap (not shown) mounted inside, and the ball tap is connected to a water supply pipe 67 connected to a water supply source (not shown). For example, an on-off valve S for manual operation is attached.

Next, a control device 53 for controlling the driving of the means 11, 21, 31, 41,... Constituting the wastewater recycling apparatus A of the present invention will be described with reference to FIG. As shown in FIGS. 3 and 4, the control device 53 includes a microcomputer 54 and a detection circuit that is connected to an input side of the microcomputer 54 and outputs a detection signal of each water level of the storage unit 11, for example. And a detection circuit for detecting an output signal corresponding to the number of revolutions from the electric pump 41, and a drive circuit connected to the output side of the microcomputer 54 for driving and controlling the three-way valves V _1. And a drive control and display unit having the same. And the microcomputer 54
, The timer for setting the memory and the drive time for storing a control program for controlling the driving of the electric pump 41, three-way valve V ₁ · · · and the like are provided.

In FIG. 3, the control device 53 includes a float switch 17a for detecting the lowest water level of the drainage tank 12a and a float switch 17b for detecting the lowest and highest water levels of the treatment tank 12b as detecting means connected to the input side thereof. , 17c, and the low tank 61a of the toilet 61
Water level detection circuits 17a ₁ , 17b ₁ , 1 detecting each on / off signal of the float switch 17d for detecting the water level
7c ₁ , 17d ₁ , an air ejection pipe 46 for sending air from the blower 43 and an air supply pipe 47,
Solenoid valves M ₁ , M ₂ , which open and close in response to on / off signals from
And M _2, a predetermined operation mode is output from the microcomputer 54 (high-speed, medium-speed, low speed) and an electric pump 41 which is driven by,
A detection circuit 41a for detecting the operation status (rotational speed, temperature during operation) of the electric pump 41, and a detection circuit 31a for detecting the degree of wear of the electrodes 34a and 34b of the sterilization processing means 31
And a detection circuit 45a for detecting a detection signal of the sensor 45 of the blower 43, respectively.

On the other hand, the drive control and display means connected to the output side of the control device 53 include three-way valves V _{1 to} V ₅
In the individual, and the lighting and the drive circuit 55 for driving the three directions as needed, the electric pump 41, blower 43, at the time of the three-way valve V ₁ ~V ₅ failure or abnormal, the display unit 71 of these Lighting circuits 72 for displaying (for example, LEDs are lit by a preset control program) are connected to each other.

Subsequently, an outline of a control program for driving and controlling each means set in the memory of the control device 53 in advance will be described. That is, the following control program is set in the memory. [Operating Mode] In the following operating modes, the operations of the float switch, the electric pump, the respective three-way valves, the blower, etc. are as follows: (1) A processing operation mode in which the wastewater is purified by the purification means 21 to produce treated water. (2) Reuse operation mode for passing treated water to the toilet 61 (3) Reuse preliminary operation mode for replacing residual water in the pipe with treated water before the reuse operation (4) The treatment tank 12b is full In this case, the treated water is circulated between the purification treatment means 21 and the treatment tank 12b,
A circulating operation mode of the treated water for maintaining the activity of the microorganisms of the purification treatment means 21 and improving the water quality (5) The inside of the filter tube 22 of the purification treatment means 21 is washed with air and treated water to discharge sludge and the like. Phase flow backwash operation mode (6) Following the two-phase flow backwash operation mode,
Drainage operation mode in which the sludge stored at the bottom of the tank is discharged with treated water

[Failure Mode] When the following phenomena occur, the electric pump 41 is forcibly stopped, and the operation of the wastewater recycling apparatus (hereinafter, referred to as the present apparatus) A of the present invention is temporarily stopped. Let it. (1) When outputting a switching signal of the three-way valve V ₁ ~V _5,
When the switching operation is not completed even after a certain period of time (failure of the three-way valve) (2) The rotational speed of the electric pump 41 (the driving state of the electric pump 41) is changed to a preset rotational speed (for example, 3000 rpm at high speed, 2000 rpm at medium speed, 10 at low speed
(00 rpm) or less is detected for a certain period of time (failure of the electric pump 41); (3) When the temperature of the pump exceeds the set temperature during operation of the electric pump 41 (failure of the electric pump 41) (4) During the reuse preparatory operation, when the rotation speed of the electric pump 41 (the driving state of the electric pump 41) is rotated at a fixed speed of, for example, 5000 rpm or more due to a rapid decrease in the water level of the processing tank 12b (idle operation of the electric pump 41) (5) In the case where the supply of the treated water to the toilet 61 is maintained even if the supply time exceeds the set time (leakage in the pipe) (6) Although the water level of the treatment tank 12b is at the highest level When the float switch 17b indicates the lowest water level (float switch failure) (7) Although the drainage tank 12a maintains a constant water level, the treatment tank 12 When the water level of b is lower than the minimum water level (clogging of the piping system)

[Cancel Mode] (1) If the supply of the treated water to the toilet 61 is 20 times / day or more, the supply of the treated water to the toilet 61 is stopped (cancel the next day). (2) Toilet 6
If 1 is not used, cancel the backwash operation. (3) When the treatment tank 12b is at the lowest water level, the toilet 6
(1) When the electrodes 34a and 34b of the sterilization processing means 31 are replaced due to wear, the display means 71 is turned on (the electrode is turned off). 34
a and 34b are exchanged and the DC power supply 62 is reset). Needless to say, the programs are set so that the contents of each mode are displayed on the display means 71 for each of the above-mentioned modes. Further, it is natural that the microcomputer 54 of the control device 53, the respective detection circuits, the drive circuits, and the sensors are supplied with the DC power supply 62 set to a required voltage.

Next, the operation of the device A of the present invention will be described with reference to FIGS. First, a description will be given of a case of a processing operation for purifying gray water to generate treated water. In this case, the three-way valves V _{1 to} V ₅ are switched by a command signal of the microcomputer 54 so that the gray water and the treated water can be circulated through a predetermined piping system in order to perform the treatment operation. Miscellaneous wastewater is collected from the bath 1, the washing machine 2, and the washroom 3, and is once collected in the drainage tank 12a through the collection pipe 14.

When the water level in the drainage tank 12a becomes higher than the minimum water level, the float switch 17a detects this and sends a detection signal to the microcomputer 54 of the control device 53. The microcomputer 54 outputs an output signal of an operation mode for driving the electric pump 41 at a low speed (for example, the flow rate of the wastewater is 1 liter / min) based on the detection signal, and outputs the signal.
Is started to start the operation of treating the gray water (see FIG. 7).
However, when both the drainage and treatment tanks 12a, 12b are empty (in the present invention, the state where the tanks 12a, 12b are empty means that the water in the tanks 12a, 12b is lower than the minimum water level). , Do not drive (steps S ₁ , S ₃
reference). In addition, the drainage tank 12
When the amount of inflow into a exceeds, the excess wastewater flows out to the sewage drainage pipe 15 through the overflow pipe 16.

The gray water by the activation of the electric pump 41, the drainage feed pipe 29 and the three-way valve V ₁ ~V _3, supplied from the top to the filtration cylinder 22 via a flow control valve 23. The Saizatsu wastewater does not flow into the three-way valve V _2, V ₃ by the processing water distribution pipe 65 and reflux tube 30a. That is, the three-way valves V _{1 to} V ₃ are switched in the direction of supplying the miscellaneous wastewater to the filter cylinder 22 by the command signal from the microcomputer 54 of the control device 53 in the operation of treating the miscellaneous wastewater. The miscellaneous wastewater supplied to the filter tube 22 is sequentially supplied from the upper portion of the filter tube 22 only for a flow amount purified by the flow control valve 23 into the treated water by the filter medium 24.

The gray water flowing into the upper portion of the filter tube 22 flows from the top to the bottom of the filter tube 22. At this time, the filter medium 24
Microorganisms adhere to the surface of the filter in the form of a film, and the microorganisms ingest the dirt component of the gray water drained into the filter cylinder 22. Therefore, the gray water passes through the filter medium 24 and the support stone 27 layer. This advantageously reduces the biochemical oxygen demand (BOD) in the water.

Furthermore, since the waste water passes through the narrow bottleneck between the densely packed filter media 24 and the support stones 27, the refuse in the waste water cannot pass between the filter media 24 and the like. Thereby, filtration of miscellaneous wastewater can be performed favorably and treated water is generated. In addition, even during the generation of the treated water, a constant flow rate of air is blown from the lower part of the filter tube 22 into the filter tube 22 through the air blower tube 46 from the lower part of the filter tube 22 at all times. Supplies the oxygen needed for the activity of some microorganisms. Further, the air ejected from the blower 43 passes through an air supply pipe 47, and air discharge pipes 48a, 4 provided at the bottom of the drainage / treatment tanks 12a, 12b.
8b, which suppresses contamination of gray water and treated water.

The treated water that has been subjected to the purification treatment is supplied to the filter cylinder 22.
The outflow from the bottom to the process water feed tube 30 through the three-way valve V _4, is sequentially stored to flow into the processing tank 12b of the storage unit 11. The purification treatment of wastewater is, if the recovery of gray water is smoothly carried out, the water level of the processing tank 12b is made to reach the highest position (Tekisui) (see step S ₄ in FIG. 7). When the process tank 12b by inflow of process water is filled with water at a float switch 17c is displayed by the display means 71, purification treatment of wastewater is interrupted temporarily shifts to backwash the step S ₅ shown in FIG. 7 Move to operation mode.

The backwashing operation is performed when the apparatus A of the present invention is first activated, and the subsequent backwashing operation is performed once / two days. At the time of backwashing, the treated water is treated with treated water 63 → three-way valve V ₁ → drain supply pipe 29 → three-way valve V ₂ , V
₃ → The three-way valves V _{1 to} V ₃ are switched by a command signal from the microcomputer 54 so that the three-way valves V _{1 to} V ₃ can be supplied from the lower part of the filter tube 22 into the filter tube 22 through the backflow pipe 30a.
Further, the washing water discharge pipe 42 is further switched three-way valve V ₅ to pass communication with sewage drainage pipe 15 at a command signal from the microcomputer 54, the three-way valve V ₄ is switched to a direction of closing the treated water subjected flue 30. In addition, a constant flow of air is constantly blown from the blower 43 into the filter tube 22 through the air blow tube 46. Incidentally, the backwash when the solenoid valve M ₂ of the filter tube 22 is closed by a command signal from the controller 53. This is to prevent the amount of air ejected from the blower 43 to the filter cylinder 22 from decreasing.

When the backwashing state is set as described above, the electric pump 41 is first operated at a low speed by a command signal from the microcomputer 54, and the treated water is discharged at a rate of, for example, 5 liters / minute.
For a minute, the dust is spouted vigorously from the lower part to the upper part of the filter tube 22 to remove dirt, dust and the like adhering to the filter medium 24. The treated water spouted while washing the filter medium 24 on the upper part of the filter tube 22 flows out from the upper part of the filter tube 22 to the sewage drain pipe 15 through the washing drain pipe 42. When the one-minute low-speed operation is completed, the electric pump 41 is switched to the high-speed operation in response to a command signal from the microcomputer 54, and the treated water is supplied into the filter cylinder 22 at a rate of, for example, 20 liters / minute for one minute as in the low-speed operation. Squirt upward from below.

As a result, the treated water and the air can be circulated vigorously in the filter tube 22, so that the filter medium 24
Is vigorously swung up and down to forcibly remove dirt, extraneous microbial membranes and the like, including dirt on the filter medium 24, and to flow together with the treated water from the upper part of the filter tube 22 through the washing drainage pipe 42 to the sewage drainage pipe 15. As described above, the filter tube 22 forcibly removes the treated water obtained by purifying the gray water with air for a certain period of time.
By spouting toward 4, the separation of the filter medium 24 such as dirt is promoted, the activity of microorganisms is sufficiently maintained, and
The purifying effect of the filter medium 24 can be maintained and improved.

After the washing of the filter tube 22 has been completed by the two-phase flow backwashing with the treated water and the air,
2. Filtration and discharging is performed to discharge the sludge accumulated at the bottom of 2. In this case, in order to cause the treated water to flow downward from the upper part of the filter cylinder 22 to the lower part, the three-way valve V ₃ is connected to the backflow pipe 30 a
The three-way valves V ₄ and V ₅ are switched by the command signal from the microcomputer 54 in the direction to close the sides, respectively, in the direction to communicate with the wastewater drainage pipe 15. When the switching of the _three- way valves V _{3 to} V ₅ is completed, the electric pump 41
The operation is switched to the medium speed operation, for example, the treated water is supplied to the upper part of the filtration tube 22 from the flow control valve 23 at a rate of 5 liter / min for 1 minute, and the inside of the filtration tube 22 is caused to flow downward from above,
Washing of the filter medium 24 and waste such as sludge at the bottom of the filter tube 22 are discharged from the lower portion of the filter tube 22 together with the treated water to the sewage drainage pipe 15 to maintain and improve the filtration performance of the filter tube 22 (FIG. 7 see step S ₅ of).

When the backwashing and the filtration and discharge during the initial operation of the filter cylinder 22 are completed, the wastewater recycling apparatus A is set in FIG.
As shown by, a program is set to shift to a predetermined operation mode. As a result of executing the processing operation of the step S _2, gray water is empty (below the minimum water level) in the waste water tank 12a, and the yet, the processing tank 12b
If the treated water is stored (or low water) within, the process proceeds to step S _6, the process operation is once interrupted, executes circulation operation described in detail later. And miscellaneous wastewater newly flows into the drainage tank during the circulation operation,
If drainage tank 12a is no longer empty (step S _7), the process proceeds to step S _2, stopping the circulation operation, performs the processing operation again. That is, the present invention apparatus A is to perform alternately repeated until the processing operation at the time of initial operation (step S ₂₎ and circulation operation (Step S ₆₎ the processing tank 12b is filled with water (Step S _4).

The circulating operation of the treated water is performed by the drainage tank 12
a is empty (below the minimum water level) and the processing tank 12
When b is equal to or higher than the minimum water level, the treated water is constantly subjected to microorganism treatment in the filter tube 22 to maintain and improve water quality and maintain the activity of microorganisms. Therefore,
If the amount of miscellaneous wastewater in the drainage tank 12a exceeds the minimum water level and the treatment tank 12b is not full, FIG.
The process operation mode shown in the S _2, the processing tank 1
Continue to generate treated water until 2b is full. In this case, when the treated water in the treatment tank 12b becomes full and flows into the treatment tank 12b before the treatment operation is stopped and exceeds the highest water level, the treated water is opened to the partition wall 13 of the storage tank 12. Drain tank 12a from overflow 13a
Some will overflow.

At the time of the circulation operation, the microcomputer 54 detects that the drain tank 12a is empty and the processing tank 12b is full or the processing water of the minimum water level or more is stored (performed by the float switches 17a to 17c). switches in a direction which communicates with the treated water using tube 63 of the three-way valve V _1. Three-way valve V ₂ ~V ₄ is maintained in the same switching direction as when processing operation. When the switching adjustment of the three-way valves V _{1 to} V ₄ is completed, a start command to the electric pump 41 is transmitted to the microcomputer 54.
And the electric pump 41 is operated in the same manner as in the processing operation.
The processing water is operated at a low speed, and the treated water is circulated through the treated water use pipe 63 → the drainage supply pipe 29 → the filter cylinder 22 → the treated water supply pipe 30 to be returned to the treatment tank 12 b. (See S ₆ in FIG. 7).

The initial operation of the device A of the present invention has been described with reference to FIG.
The operation mode actually used will be described. In the operation mode shown in FIG.
The right side shows the mode of producing treated water and the mode of backwashing, respectively.

[0057] In FIG. 8, when the selection of the operation mode is not performed supply of water to the toilet 61, the process proceeds from step S ₈ to S _10, as in the initial stage of use, above,
As in step S _11, S _12, first perform backwashing of filtration cylinder 22 if the processing tank 12b is a full level. On the other hand, the if I backwash is already completed, the transition to drain tank 12a is empty to step S ₁₃ in FIG. 8, and, if I leave the treated water or low water to the processing tank 12b, step S _14, S ₁₅
Performs the above-described circulation operation.

[0058] In step _13, if the drain tank 12a is not empty, i.e., if I remain gray water (if processing tank 12b is not filled with water), and executes the processing operation (see step S ₁₆ of FIG. 8 ). Further, step S
_{14 when} the treatment tank 12b is empty (the drainage tank 1
2a also empty), there is no gray water, the present invention apparatus A to stop the operation (see step S ₁₇ of FIG. 8). Note that, in step S ₁₁ in FIG. 8, the processing treatment water tank 12b (if exists or lowest level) when not in full water even after the input of the backwash signal (inventive device A is activated For example, after elapse of 12 hours, the apparatus A of the present invention is switched to the two-phase flow backwash operation mode and the filtration drainage operation mode, and shifts to the backwash operation of the filter tube 22.

Next, a case where the treated water is passed through the toilet 61 will be described. In this case, that is, when the toilet 61 is used and the toilet bowl is cleaned, the water level of the low tank 61a decreases. When the water level of the low tank 61a falls below the minimum water level, a float switch 17 provided on the low tank 61a is provided.
Based on d, it is detected that the water level of the low tank 61a has fallen below the minimum water level. This detection signal is output to the control device 53. The control device 53 causes the device A of the present invention to shift to the reuse preliminary operation mode and the reuse operation mode based on the output signal from the float switch 17d.

That is, in step S ₉ of FIG. 8, when the treated water is passed through the low tank 61 a of the toilet 61,
If I exist more treated water minimum water level processing tank 12b in step S _20, the process proceeds to step S _21.
However, in step S _20, S _200, the processing tank 12
a, If the drain tank 12b is empty (below the minimum water level),
To stop all operations in step S _26. In this case, if the gray water is being passed through the waste water tank 12a, step S ₂₅
Restarts the wastewater treatment operation. On the other hand, if I circulates treated treated water in step S _21, moves to the re-use drive mode (step S ₂₂₎ as it is. On the other hand if you are performing the processing operation of the gray water not subjected to the circulation process, the process moves to reuse the preliminary operation shown in Step S ₂₃ to stop the processing operation.

[0061] Then, usually as if I was conducted circulation operation of the treated water, the process moves to reuse operation in step S ₂₂ that passed through the treated water to the toilet 61. This is because, when the treated water is circulated, the treated water is circulated through the drainage supply pipe 29 to the three-way valves V _{1 to} V _2, and the treated water is reused when the three-way valve V ₂ is reused. Distribution pipe 65
This is because it is sufficient to switch to the side. Further, the treated water switching to reuse operation may be performed to switch the three-way valve V ₂ by a command signal from the controller 53 receives an output signal from the float switch 17d, this time, sterilization means The electrodes 34a and 34b of the electrolytic sterilization layer (not shown) are also energized at the same time.

As a result, the treated water in the treatment tank 12 b flows into the treated water use pipe 63 → the drainage supply pipe 29 → the treated water circulation pipe 65 by the activation of the electric pump 41, and is passed through the check valve 64 through the sterilization treatment means. It reaches 31. In the sterilizing means 31, water (hereinafter, referred to as sterilizing water) containing sterilizing metal ions is generated by flowing through an electrolytic sterilizing tank (not shown). When the water level in the low tank 61a reaches a predetermined level, the float switch 17d detects the storage of the washing water and outputs a detection signal to the control device 53, whereby the control device 53 Outputs the stop signal of the electric pump 41 to stop the driving of the pump 41, that is, terminates the flow of the washing water to the toilet 61.

When the treated water for cleaning is passed through the low tank 61a of the toilet 61, the sterilized water is sterilized by the sterilizing means 31 for the following reason. That is, the treated water stored in the treatment tank 12b contains a large amount of bacteria and microorganisms that are sources of odors and stains in the water. For this reason, the air of the blower 43 is supplied to the processing tank 12b and the drainage tank 12a by the air ejection pipe 48.
a and 48b are spouted into treated water and gray water for purification, but it is difficult to prevent the activity of bacteria and the like.

The presence of the bacteria and the like decomposes organic components contained in the water to generate a bad smell, or forms a sticky substance and adheres to the wall surface of the raw tank 61a to form slime and dirt. May be. Therefore, if the water is sterilized by the sterilization processing means 31 before the treated water is passed through, the generation of bad smell and dirt can be satisfactorily suppressed in the raw tank 61a. is there.

For this reason, in the device A of the present invention, generation of offensive odor and the like is suppressed by mixing sterilizing ions into the treated water. As the germicidal ions, known germicidal metal ions (eg, silver / copper ions)
Is mixed in the treated water. For example, a case in which silver ions are used as the germicidal ions will be described. A pair of electrodes 34a and 34b are formed of silver, which are arranged to face each other as shown in FIG. 5, and are provided between the electrodes 34a and 34b. When a predetermined voltage is applied to the electrodes 34a, 34b while passing the treated water through the flow passage 33 formed through the spacer 32, one of the electrodes (anode) electrolytically elutes silver ions to generate germicidal metal ions. Then, by mixing the ions into the treated water, bacteria and the like in the treated water are sterilized.

The sterilization treatment of the treated water will be described in more detail.
When a voltage is applied to both electrodes 34a and 34b while water is flowing between the pair of electrodes 34a and 34b, the metal is ionized from the surface of one electrode (anode) 34a and elutes into water, and the other is dissolved. At the surface of the electrode (cathode), hydrogen ions receive electrons from the cathode and become hydrogen gas, and the hydrogen gas and the ions eluted into the water synergistically produce metal ions having a strong bactericidal property. Is eluted into treated water to produce sterilized water.

When the metal is ionized from one of the electrodes and elutes into the treated water, if the ion is always eluted only from one electrode, only one of the electrodes is reduced. Therefore, in the device A of the present invention, the toilet 6
Each time water flows through the raw tank 61a, the electrodes 34a, 3
By changing the direction of current flow to 4b (polarity conversion),
The electrode is prevented from being worn away. As a result, the loss of the electrodes 34a, 34b is suppressed, and the electrodes 34a, 34b
The service life is extended. The procedure for converting the polarities of the electrodes 34a and 34b is programmed in advance in the memory of the microcomputer 54.

The electrode 3 for producing the germicidal metal ions
4a and 34b are configured to generate a treated water into a sterilized water by receiving a predetermined current through a constant current circuit (not shown) during operation. However, since the metal ions are eluted from the electrodes 34a and 34b by energization, the thickness of the electrodes 34a and 34b gradually decreases as the use time elapses, and the energization voltage increases accordingly. The microcomputer 54 constantly monitors the voltage applied to the electrodes 34a and 34b, and when the voltage applied to the electrodes 34a and 34b exceeds the voltage set in advance, the microcomputer 54 displays the replacement of the electrodes 34a and 34b. The program is set to be displayed at 71.

As a result, when the plate thickness of the electrodes 34a and 34b decreases, the voltage applied to the electrodes 34a and 34b increases with the increase in the resistance value of the electrodes 34a and 34b. For display, if the electrodes 34a and 34b are replaced at the time when the replacement time is determined, a decrease in the sterilizing ability of the treated water can be prevented, and the treated water can always be sterilized under the same conditions.
Problems such as generation of offensive odor and contamination of the inside of the low tank 61a can be surely solved from the washing water passed through 1a.

Next, the waste water is purified in the processing operation mode.
When processing, the low tank 61a of the toilet 61 is processed
The case of passing water will be described. Again, low
Float switch that the water level of the tank 61a has dropped
When the control device 53 detects through the 17d, the control device 5
3 stops the electric pump 41 and performs the wastewater treatment operation.
Command signal to suspend the process water and pass the treated water to the low tank 61a
Output a signal. A water flow command to the low tank 61a is output.
When the processing operation is started, the process proceeds to step S in FIG. _{twenty three}Shown in
The mode is changed to the reuse preliminary operation mode. This operation mode
Removes the waste water remaining in the waste water supply pipe 29
To replace wastewater in the wastewater supply pipe 29 with treated water.
You.

[0071] That is, after switching to a direction capable of supplying treated water to the three-way valve V ₁ from wastewater, and restart the electric pump 41, processes the treated water from the treatment tank 12b water used pipe 63 →
By feeding the three-way valve V ₁ → the drain pipe 29 → the filter pipe 22, the waste water remaining in the drain pipe 29 is fed to the filter pipe 22. The reuse preliminary operation is performed, for example, by operating the electric pump 41 at a medium speed for about 5 seconds.

[0072] When the reuse preliminary operation is completed, the process proceeds to step S ₂₄ shown in FIG. 8, reuse operation described above, i.e., switched to the operation to passed through the treated water to the low tank 61a. In this case, after stopping the electric pump 41, the three-way valve V
₂ is switched to a direction communicating with the treated water circulation pipe 65 side, and the electric pump 41 is started again, whereby the treated water is sterilized by the sterilizing means 31 and passed through the low tank 61a of the toilet 61. Since the passage of the treated water and the sterilization treatment are the same as described above, the description is omitted.

As described above, the apparatus A of the present invention purifies the gray water discharged from the bath 1, the washing machine 2, and the lavatory 3 to generate the treated water, and the treated water is supplied to a required amount at the place of use. Since the wastewater is purified automatically, the wastewater can be purified by supplying the wastewater to the filter tube 22 in an amount that the filter tube 22 can purify.
The purification treatment of the wastewater can be performed reliably and smoothly.

When the processing operation and the circulation operation are stopped,
The highest position of the feed path of the treated water feed pipe 30 is set so as to be the same as the highest water level of the filter tube 22, and the highest position of the feed path is set to the atmosphere through the exhaust pipe 30b. The passage from the highest position of the treated water supply pipe 30 to the treatment tank 12b is connected to the treatment tank 12b. As a result, the atmosphere is introduced through the exhaust pipe 30b, the siphon phenomenon is suppressed, and the treated water is supplied to the treatment tank 12b. To be discharged. However, since the treated water still remains in the portion from the highest position of the treated water supply pipe 30 to the filter tube 22, the water level in the filter tube 22 does not decrease and the position at the time of stop can be maintained. Therefore,
The problem that the water level in the filter cylinder 22 is drained due to the siphon phenomenon caused by the stoppage of the electric pump 41, thereby inhibiting the activity of the microorganisms attached to the filter medium 24 can be surely solved.

Next, a description will be given of troubles and the like that occur during use of the device A of the present invention. The troubles in the device A of the present invention have already been described in paragraph numbers [0041] and [0042].
Since the failure mode and the cancel mode described in (1) and (2) are programmed in the memory of the microcomputer 54 in advance, it is possible to perform the corresponding processing. That is, the three-way valve V
₁ In ~V _5, gray water, since pre-switching direction for each processing operation mode of the treated water is set, if the predetermined operation mode is required three-way valve V ₁ ~V ₅ does not operate normally the display unit 71 the three-way valve V ₁ ~V ₅ by lighting display by the three-way valve does not work with stating that no work, and so as not to start the electric pump 41.

Regarding the electric pump 41 as a single feeding means, "low speed", "low speed",
It is set to be able to rotate at "medium speed" and "high speed". Therefore, during predetermined processing operation, if the operation is not performed in the required speed operation mode, or the pump 41 itself is overheated for some reason and the set temperature is reached. Is exceeded,
Immediately, it is determined that the electric pump 41 is out of order, and the operation thereof is stopped.

The blower 43 as the air supply means always supplies air to the filter tube 22 and the tanks 12a and 12b for drainage and treatment. If a failure occurs, the sensor 45 detects this and the display means 71. And the operation of the electric pump 41 is stopped. In the present embodiment, the failure detection of the blower 43 has been described as being performed at regular time intervals. However, the present invention is not limited to this and may be performed at all times.

Subsequently, in the abnormal stop mode, there is a part that partially overlaps with the failure mode. However, even in this mode, the failure state is always the same as the failure of the device A of the present invention. Then, the electric pump 41 is stopped. That is, the abnormal temperature of the electric pump 41, the detection of the rotation speed that does not match the operation speed set for each processing operation mode, the abnormal detection of the water level by the float switches 17a to 17d (for example, when the water level of the drainage tank 12a is the lowest water level) In spite of the above, when the water level of the treatment tank 12b is detected to be equal to or lower than the minimum water level for a predetermined time, or when the height of the water level is detected as the lowest or middle level despite the highest water level), In this case, the flow of the treated water to the toilet 61 continues even after a predetermined time (for example, 10 minutes).

Further, in the abnormal operation mode (cancel mode) of the apparatus A of the present invention, when the water flow to the toilet 61 exceeds, for example, 20 times / day, the treated water to the low tank 61a of the toilet 61 is returned. Cancellation of water flow (cancel next day),
Canceling the backwash operation when the treated water does not flow to the toilet 61 even after two days (48 hours), the treatment tank 12b
When the water level is lower than the minimum water level, the electrodes 34a and 34b of the sterilization processing means 31 are replaced when the electrodes 34a and 34b are worn out. These abnormal operation modes are displayed by the display means 71 each time. At this point, the corresponding processing can be performed. In this case, there is no particular problem in continuation of the operation state except for replacement of the electrodes 34a and 34b. When water cannot be passed through the low tank 61a of the toilet 61, the water level shortage is detected by the float switch 17a and the water level shortage is displayed on the display means 71. The tap water is supplied by operating the on-off valve S for manual operation.

[0080]

Since the present invention is configured as described above, it has the following effects.

(1) The present invention provides a method of temporarily storing relatively small dirt drainage discharged from a bath, a lavatory, a washing machine, and the like, and purifying it by a purification treatment means when a certain amount of dirt drainage is stored. Purified water that has been treated and treated is once stored by storage means, and then used as toilet flush water when necessary. All means for supplying water from the storage means to the toilet are performed using a single supply means, that is, one pump, and the supply of the wastewater to the purification treatment means can purify the wastewater. Since only the quantity can be fed quantitatively, the configuration of the wastewater reclamation and recycling apparatus that handles the relatively dirty wastewater can be simplified, and the purification processing means always purifies a fixed amount of the wastewater. , Purification of gray water Can be performed smoothly and satisfactorily, and this type of device can be installed in a general household at a small space and at low cost.

(2) In the purifying means for purifying the gray water, since the inflow direction of the gray water and the inflow direction of the outside air are set to diametrically opposite directions, the filter medium always swings due to the inflow of the outside air. It is constructed so that wastes such as dirt and microorganisms adhering to the filter medium can be sieved well and the filtration work of the gray water can be smoothly performed, so that the purification treatment capacity of the purification treatment means can be improved. Naturally, the purification processing means can be satisfactorily miniaturized with a simple structure, and the cost of this type of apparatus can be easily reduced.

(3) In the present invention, the control device is provided with the function of stopping the backwashing function when the wastewater recycling apparatus is not used for a predetermined number of days, and the number of times of supplying purified water to the toilet per day exceeds the predetermined number. When, or when the remaining amount of the purified water is insufficient, furthermore, when the purified water cannot be supplied to the toilet quantitatively, a control program for forcibly stopping the drive of the pump, With the control program for displaying the failure and abnormal situation using the display means, it is easy to prevent the overload operation of the pump and to understand the details of the failure of the device itself, and the maintenance management of this type of device can be performed smoothly and well. it can.

(4) Further, in the present invention, the waste water and the purified water are stored in at least two storage tanks, and outside air is always supplied to each storage tank to collect the waste water and the purified water. In addition to satisfactorily preventing contamination of the treated water and maintaining the aerobic property, and at the time of using the purified treated water, the sterilization degree of the treated water by the sterilization treatment means is configured to be always accurately grasped. It can be used in a clean state at all times and is hygienic.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a use state of a wastewater recycling apparatus of the present invention.

FIG. 2 is a schematic configuration diagram of a wastewater recycling apparatus of the present invention.

FIG. 3 is a block diagram schematically showing a control device used in the wastewater recycling apparatus of the present invention.

FIG. 4 is a block diagram schematically showing the configuration of the device of the present invention.

FIG. 5 is a longitudinal sectional view of a main part of a sterilization processing means of the apparatus of the present invention.

FIG. 6 is a circuit diagram schematically showing a means for detecting a blower failure.

FIG. 7 is a flowchart for explaining an initial operation of the device of the present invention.

FIG. 8 is a flowchart illustrating a use state of the apparatus of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Storage means 12 Storage tank 12a Drain tank 12b Treatment tank 15 Sewage drainage pipe 16 Overflow pipe 17a-17d Float switch 21 Purification processing means 22 Filtration tube 23 Quantitative water supply means (flow control valve) 24 Filter material 29 Drainage supply pipe 30 Treated water Feeding pipe 30a Backflow pipe 30b Exhaust pipe 31 Sterilization processing means 31a Detection circuit 33 Flow path 34a, 34b Electrode 41 Single feeding means (electric pump) 42 Cleaning drainage pipe 43 Air supply means (blower) 45 Sensor 46 Air ejection pipe 47 flue 48a, 48b air discharge pipe 53 controller 54 microcomputer 55 driving circuit 61 Toilet 61a low tank 63 treatment 67 water supply water used pipe 65 treated water distribution pipe 66 treated water passing water pipe A gray water reclamation device V ₁ ~V ₅ Three-way valve

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tatsuo Sugimoto 1 Aichi-cho, Kasugai-shi, Aichi Prefecture Inside Aichi Electric Co., Ltd. (72) Inventor Keisei Koichi 1 Aichi-cho, Kasugai-shi, Aichi Aichi Electric Co., Ltd. (72) Inventor Masuo Osumi 1 Aichi-cho, Kasugai-shi, Aichi Prefecture Inside Aichi Electric Co., Ltd. (72) Inventor Noriyuki Yoshida 1-Aichi-cho, Kasugai-shi, Aichi Prefecture Aichi Electric Co., Ltd. (72) Inventor Yamagata Hidehiro 1 Aichi-cho, Kasugai-shi, Aichi F-term (reference) in Aichi Electric Co., Ltd. 4D003 AA01 AB02 BA02 CA02 DA22 EA01 EA14 EA23 EA25 4D027 AB01 AB14 4D061 DA08 DB01 EA03 EB04 EB17 EB30 EB31 FA13 FA15

Claims (10)

[Claims] 1. Collecting miscellaneous wastewater generated at home, and
Purification treatment means for purifying the collected gray water,
Storage means for temporarily temporarily storing the purified purified water together with the gray water before the purification processing, sterilization processing means for sterilizing the stored purified water, and the gray water and the purified water. A single feeding means for feeding to a predetermined place, a quantitative water feeding means for quantitatively feeding the wastewater to the purification processing means in a flow path of the single feeding means, and a drive control of each means. A household gray water recycling apparatus characterized by comprising a control device. 2. The method of purifying gray water according to claim 1, further comprising a quantitative water supply means for quantitatively supplying the gray water to an upper part of the filter cylinder. 2. The household wastewater recycling apparatus according to claim 1, further comprising an air supply unit configured to supply air required for biological treatment and for preventing sedimentation of suspended matter from a lower side of the filter tube. 3. The air supply means is provided with a sensor for detecting that the temperature of the air supply means has been lowered by being cooled by treated water flowing out of the filter tube and detecting a failure of the air supply means. The household wastewater recycling apparatus according to claim 2, characterized in that: 4. The single feed means for the gray water and the like is constituted by a single electric pump, and the electric pump is provided with a drive state detecting means to feed the purified water and the like. The household wastewater recycling apparatus according to claim 1, wherein the state is configured to be controllable. 5. The control device according to claim 1, wherein the wastewater recycling apparatus is not used for a predetermined number of days, when the number of times of use of the purified water is exceeded, and when the remaining amount of the purified water is not exceeded. In the case where the amount of water is equal to or less than the set amount, and when the purified water cannot be supplied quantitatively to the place of use, a control program for forcibly stopping the driving of the single feeding means is provided. The household wastewater recycling apparatus according to claim 1. 6. The control device according to claim 1, further comprising a control program for displaying a failure mode and an abnormal mode for displaying a failure of the wastewater recycling device or an abnormal condition on a display means. The household wastewater recycling apparatus according to claim 1 or 5, wherein 7. The sterilization processing means controls the control device so that a pair of electrodes, as a sterilization means, which electrolyzes germicidal metal ions, is switched in polarity each time the germicidal metal ions are electrolytically eluted, and the controller is energized. The household wastewater recycling apparatus according to claim 1, characterized by comprising a program. 8. The home according to claim 1, wherein said sterilization processing means is provided with a control program for detecting a replacement time of an electrode for electrolytically eluting germicidal metal ions in said control device. Wastewater recycling equipment. 9. The gray water and the purified water are separately stored in a plurality of storage tanks by dividing the storage tank into a plurality of storage tanks, and the storage tanks and the air supply means are connected to each other by an air supply pipe to connect the storage tanks to each other. The household wastewater recycling apparatus according to claim 1, wherein the apparatus is configured to be capable of aeration. 10. The treated water supply pipe for supplying the purified treated water to a storage tank is configured so that a part of the treated water supply pipe is pulled up to the highest water level in the filter cylinder and connected to the pipe. The household wastewater recycling apparatus according to claim 1, characterized in that: