JPH1052686A - Apparatus for reusing drainage water for detached house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent treated water in a treated wastewater for reuse storing tank from being polluted just after drainage water is taken in by providing separately a treated wastewater reuse storing tank for storing the treated water out of a circulation passage in a system wherein domestic wastewater is treated for cleaning by circulating it between a small-sized cleaning apparatus and a treating tank and treated water is used for washing water for toilet, etc. SOLUTION: Drainage water from a lavatory, a bathroom and a laundary room in a detached house is collected in a drainage water collecting measure 1 and it is made to flow into a biological clarification tank 7, where org. substances are removed and S, etc., in the drainage water are removed by passing it through a number of ceramic beads 8a... in a ceramic septic tank 8 connected with the biological clarification tank 7. In this case, a treated wastewater reuse storing tank 17 for storing the treated water is installed with a wastewater reuse storing tank 9 for circulation and it is communicated and connected with the wastewater reuse storing tank 9 with an electromagnetic valve 18. Then, by making a constitution for controlling in such a way that, after a specified time passes from time when the drainage water is pumped up into the biological clarification tank 7 from the water collecting measure 1, the electromagnetic valve 18 is opened, and after a specified time, the treated water in the wastewater reuse storing tank for circulation 9 is made to flow into the treated wastewater reuse storing tank 17 to prevent drainage water from flowing into the treated wastewater reuse storing tank 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact wastewater recycling apparatus for a detached house.

[0002]

2. Description of the Related Art Conventionally, domestic wastewater from a single-family house is discharged into a sewer without being treated.
Or, it is generally treated in a septic tank and discharged, and is not reused. As a system for reusing the domestic wastewater without discharging it as it is, there are systems disclosed in JP-A-64-38198, JP-A-6-240711, and the like. Requires a large-scale septic tank, and requires a large-scale septic tank to be buried underground, etc., and is difficult to adopt as a system for a single-family house.

Therefore, the inventors of the present invention have previously proposed a compact wastewater recycling apparatus for detached houses in Japanese Patent Application No. Hei 7-30366.
FIG. 13 shows an outline of the apparatus. In FIG. 13, the drainage catchment basin 1 is buried outside the detached house near the sewage catchment basin 2 directly connected to the sewerage system. Living drainage from a washing machine, a bathroom, and a lavatory is collected through a drain pipe 3, and rainwater is collected into the drainage tank 1 through a rain drain pipe 4. Pump 5
Through the inflow pipe 6 and into a small purification device 7, a further small purification device 8 is connected to the purification device 7 via a flexible pipe 11, and the flexible pipe 11 is provided below the purification device 8. Intermediate water storage tank 9 for circulation
Is connected to another treated water storage tank 10 via a flexible pipe 11, and circulates through the purification devices 7, 8 and the storage tanks 9, 10. The wastewater is purified, and the treated water is supplied to the toilet 13 via the pump 12 as toilet flushing water.

The apparatus shown in FIG. 13 does not require a large-sized septic tank as in the prior art, makes the whole compact, and facilitates installation. However, in the apparatus shown in FIG. , 8 and the storage tanks 9, 10 to purify the wastewater, the wastewater collecting basin 1 to the purification device 7
Immediately after taking in domestic wastewater, treated wastewater storage tank 1
In addition, there is a problem that the treated water in the cleaning device 0 is polluted, and HClO (hypochlorous acid) generated in the electrolysis device P provided in the purification device 8 is circulated to, for example, the purification device 7. There is a problem that the amount of HClO (hypochlorous acid) effective for sterilization decreases by reacting with the organic matter in the sewage in the inside, and the electrode life of the electrolyzer P for electrolyzing the polluted water. Has also been problematic.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a first gist of the present invention is to provide a small-sized purifying apparatus for purifying domestic wastewater such as bath, washing, and washing surfaces. In a wastewater reuse device configured to purify by circulating between storage tanks and using the treated water as toilet cleaning water, a treated intermediate water storage tank for storing the treated water is separately provided outside the circulation path. That is. A second gist is that an electrolyzer for sterilizing the treated water is disposed inside or at the outlet side of the treated medium water storage tank. In addition, the third point is to collect domestic wastewater such as bath, laundry, and washbasin in a water collecting basin, circulate between a small purifying device and a storage tank for purifying treatment, and treat the treated water to toilet washing water or the like. In the drainage recycling device configured to be usable as the above, the water collecting basin and the storage tank are integrated. A fourth gist of the present invention is a wastewater recycling apparatus configured to purify domestic wastewater such as a bath, a laundry, and a washbasin with a small-sized purification device and use the treated water as toilet wash water or the like. The purification device includes a ceramic purification tank in which porous ceramic beads are provided, and the ceramic beads having different particle diameters are arranged in layers in the ceramic purification tank.
The activated carbon is mixed in some or all of the layers. A fifth gist of the present invention resides in a wastewater recycling apparatus configured to purify domestic wastewater such as a bath, a washing machine, and a washbasin with a small-sized purification device so that the treated water can be used as toilet washing water or the like. The purifying apparatus is provided with a ceramic septic tank in which ceramic beads having different particle diameters are provided in layers, and a separate activated carbon tank containing activated carbon.
The sixth gist is that drainage water is collected by collecting rainwater, bath tub, washing, and washing surface drainage in a collecting part, purifying through a purification device, and using the treated water as toilet flushing water. In the apparatus, the rainwater and bathtub drainage with good water quality and the highly polluted washing and washing drainage are guided to the water collecting section by separate pipes, and the rainwater and bathtub drainage are preferentially taken into the water collecting section. Thus, the opening and closing of the pipe is controlled.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a wastewater reuse system for a single-family house according to a first embodiment. A drainage catchment tank 1 installed buried outside a single-family house has a washroom, a bathroom,
The drain pipe 3 for draining from the laundry room is connected,
Domestic wastewater is collected through drainage pipe 3 into drainage catchment box 1,
Also, rainwater can be collected in the catchment basin 1 via the rainwater pipe 4, and when overflow occurs, the overflow pipe 1a
It is configured to discharge domestic wastewater to the sewage via a drainage pipe. An inflow pipe 6 is connected to the drainage water collecting section 1, and the pump 5 in the inflow pipe 6 is operated to thereby discharge the drainage water collecting section 1.
It is configured so that domestic wastewater can be pumped up and flowed into the biological septic tank 7, and a large number of nets 7a are arranged in the biological septic tank 7 at intervals. Activated sludge adhering to 7a can remove organic matter from domestic wastewater by activated sludge treatment, and a ceramic purification tank 8 is connected to the right side of this biological purification tank 7, and a biological purification tank is provided. The domestic wastewater from which organic matter has been removed in the inside 7 flows into the ceramic septic tank 8, and SS and the like in the domestic wastewater are removed through a large number of ceramic beads 8a, 8a, 8a put in the ceramic septic tank 8. Further, a circulating medium water storage tank 9 is connected via a pipe 14 provided at a lower portion of the ceramic septic tank 8, and the treated water treated in the ceramic septic tank 8 is used for this purpose. The water is circulated through a pipe 14 into the lower circulation water storage tank 9, and a circulation path 15 is connected to the lower circulation water storage tank 9. Is provided with a pump 16, and the upper end of the circulation path 15 is connected to the biological purification tank 7.
The circulating medium water storage tank 9 is provided with an overflow pipe 9a for discharging overflow water to the sewer.

Therefore, when the pump 16 is operated, the treated water in the circulating intermediate water storage tank 9 is circulated again in the biological purification tank 7 and further circulated in the ceramic purification tank 8.
Further, the purification process is performed by repeating the circulation from the ceramic purification tank 8 to the circulating intermediate water storage tank 9 in order.

In this embodiment, the ceramic septic tank 8
A treated wastewater storage tank 17 is installed on the right side of the circulation wastewater storage tank 9 at the lower part of the tank, and the treated wastewater storage tank 17 communicates with the circulation wastewater storage tank 9 via a solenoid valve 18. The electrolyzer 19 is disposed on the outlet side in the treated medium water storage tank 17. Further, a delivery pipe 21 is connected to the treated intermediate water storage tank 17,
When the pump 22 in the delivery pipe 21 is operated, the treated water stored in the treated medium water storage tank 17 can be delivered as toilet flush water.

The electromagnetic valve 18 can be configured so as to open in accordance with the processing time during which purification is performed by circulating in the purification tanks 7 and 8 and the circulating intermediate water storage tank 9. The solenoid valve 18 can be controlled to open and close using a sensor or the like. For example, after a predetermined time from the time when the pump 5 is operated from the drainage collecting tank 1 to pump the domestic wastewater into the biological purification tank 7, Can be opened. When the electromagnetic valve 18 opens, the treated water in the circulating sewage storage tank 9 flows into the treated sewage storage tank 17, and the treated water is stored in the treated sewage storage tank 17. Since the treated wastewater storage tank 17 is provided separately outside the circulation path, domestic wastewater does not flow into the treated wastewater storage tank 17, and the treated water after the purification treatment is used. It can be stored well.

An electrolyzer 19 provided in the treated intermediate water storage tank 17 generates free chlorine by electrolysis and treats the generated available chlorine (HClO) by the sterilizing power of the strong acidity. The treated water stored in the treated wastewater storage tank 17 can be sterilized. Since the treated water in the treated treated water storage tank 17 does not circulate, available chlorine (HClO) is used. Can effectively act on the treated water to perform good sterilization, and the electrolyzer 19
Function effectively, and electrolyze treated water instead of sewage, so that the electrode life of the electrolyzer 19 is prolonged. In the drawing, reference numeral 20 denotes a supply pipe, which is configured to supply water from the supply pipe 20 when the amount of treated water in the treated intermediate water storage tank 17 becomes small. .

As described above, in this embodiment, since the treated intermediate water storage tank 17 is provided separately from the circulation path, the treated water in the treated intermediate water storage tank 17 does not become polluted even immediately after taking in the wastewater. Available chlorine (H
ClO) acts effectively, clean treated water can be used as toilet flushing water without reduction, and the electrode life of the electrolyzer 19 can be maintained long.

FIG. 2 shows a second embodiment. In FIG. 2, the circulating intermediate water storage tank 9 and the treated intermediate water storage tank 17 in FIG. 1 are vertically stacked in the vertical direction. The other components are almost the same as those in FIG. In FIG. 2, domestic wastewater can be smoothly circulated and treated in the biological purification tank 7, the ceramic purification tank 8, and the circulating wastewater storage tank 9, which are located above the treated wastewater storage tank 17, The treated water can be introduced into the treated underwater storage tank 17 below by opening the electromagnetic valve 18, so that the arrangement of each tank can be stabilized and the pipe configuration can be shortened.

Next, FIG. 3 shows a third embodiment. In FIG. 3, the drainage reservoir 1 shown in FIG. 1 is omitted, and the drainage reservoir and circulating intermediate water storage are shown. The tank 9 is integrated, and the drainage pipe 3 is directly connected to the circulating water storage tank 9, and the domestic wastewater flows directly into the circulating water storage tank 9 through the drainage pipe 3. It is configured to circulate through the biological purification tank 7 and the ceramic purification tank 8 disposed above the circulating intermediate water storage tank 9 to purify domestic wastewater.

A treated intermediate water storage tank 17 is disposed below the circulation intermediate water storage tank 9 in a vertically stacked state, connected by an electromagnetic valve 18, and connected to the electromagnetic valve 1 in accordance with the treated time.
8 is opened to allow the treated water to flow into the treated sewage storage tank 17, and the electrolyzer 19 is disposed in the treated sewage storage tank 17. The circulating sewage storage tank 9 and the treated sewage storage tank 17 are installed buried in the ground, and only the biological purification tank 7 and the ceramic purification tank 8 are installed on the ground.

According to the configuration as shown in FIG. 3, the drainage water collecting reservoir 1 can be omitted, and the circulating medium water storage tank 9, which also serves as the drainage water collecting reservoir, is made large to increase the purification processing capacity. In addition, the number of pipes, pumps and valves can be reduced as compared with that of FIG. 1, so that the pipe configuration can be simplified and the cost can be reduced. Further, the volume exposed on the ground is reduced, so that the site can be effectively used, and furthermore, the generation of odor and insects from the drainage catchment tank 1 as in the related art can be prevented.

Next, FIG. 4 shows a fourth embodiment. In FIG. 4, the biological septic tank 7 and the ceramic septic tank 8 are vertically arranged vertically, and the drainage collecting tank is buried underground. Is installed, and a treated intermediate water storage tank 17 is connected to the right side of the tank by a solenoid valve 18, and the other configuration is the same as that of FIG. It is almost equivalent to the one. In the configuration of FIG.
Can be flowed into the lower ceramic septic tank 8 using gravity, so that gravity can be used and circulation downward can be performed without turbulent flow. The circulation of the wastewater is improved, and the purification efficiency is improved.

Further, as in the case of FIG. 3, there is no need to separately provide a drainage catchment tank.
The number of valves can be reduced. Further, since the treated wastewater storage tank 17 is provided separately outside the circulation path, the treated water in the treated wastewater storage tank 17 is not polluted immediately after taking in domestic wastewater. Since the chlorine generated in the electrolyzer 19 provided in the treated intermediate water storage tank 17 effectively exerts a sterilizing effect and is not circulated, the generated available chlorine (HCl
The sterilization efficiency is improved without the effect of O) being reduced, and the electrode life of the electrolyzer 19 is prolonged.

FIG. 5 shows a fifth embodiment. In FIG. 5, compared with the configuration of FIG.
The treated intermediate water storage tank 17 is arranged in a vertically stacked state below the bottom, and the other configuration is almost the same as that of FIG. In the configuration of FIG. 5 as well, only the biological septic tank 7 and the ceramic septic tank 8 are exposed on the ground.
It can be installed compactly by effectively using the site,
Moreover, since the biological septic tank 7 and the ceramic septic tank 8 are vertically stacked, the gravity of the biological septic tank 7 is effectively utilized.
The wastewater can be circulated to the ceramic septic tank 8 from below, and can be favorably circulated to the circulating intermediate water storage tank 9 below using the gravity, and the flow is smooth because the gravity is used. The purification efficiency is improved, and the piping configuration can be simplified.

Further, since the treated wastewater storage tank 17 is separately provided outside the circulation path, the treated water in the treated wastewater storage tank 17 becomes polluted immediately after the wastewater is taken in, as in each embodiment. In addition, the treated water can be effectively sterilized by available chlorine (HClO) generated by the electrolyzer 19 in the treated medium water storage tank 17. Although the electrolyzer 19 is illustrated in each embodiment as being installed in the treated sewage storage tank 17, the electrolyzer 19 is connected to the delivery pipe 21.
Even if it is provided inside, the treated water can be effectively sterilized.

FIGS. 6 to 10 show modifications of the ceramic septic tank 8 in each of the above-described embodiments. In FIG. 6, the porous ceramic beads 8a provided inside the ceramic septic tank 8 are shown. , 8a, 8a are packed in a layered manner with different particle diameters. Ceramic beads 8a, 8a, 8a having a large particle diameter are put in a lower layer P1 in the ceramic purification tank 8, and an intermediate layer P2 above the ceramic beads 8a, 8a, 8a. Contains ceramic beads 8a having a medium diameter, and the upper layer P3 above the ceramic beads 8a has small ceramic beads 8a.

If the ceramic beads 8a having different particle diameters are filled in layers as described above, when drainage flows from the upper layer P3 side to the lower layer P1, the resistance of flowing water decreases, and the drainage becomes easier to flow. Thus, the purification efficiency can be improved. Conversely, when a water flow is caused to flow from the lower layer P1 side to the upper layer P3 side for backwashing, the flowing water resistance is reduced.

Next, in FIG. 7, granular activated carbons 8b, 8b are mixed with the ceramic beads 8a in the middle layer P2. In FIG. 8, activated carbon 8b is mixed with ceramic beads 8a in the upper layer P3. Activated carbon 8b has upper layer P3 and middle layer P
2, may be mixed in all the layers of the lower layer P1, or may be mixed in some of the layers as described above. Further, the middle layer P2 may be entirely made of activated carbon 8b, and the middle layer P2 of the activated carbon 8b may be sandwiched by the ceramic beads 8a in the upper layer P3 and the lower layer P1.

By mixing the activated carbon 8b in this way, in addition to the biological filtration by the ceramic beads 8a, the filtration efficiency can be improved by the adsorbing ability of the activated carbon 8b, and a well-balanced filtration performance can be exhibited as a whole. In particular, the activated carbon 8b can favorably assist purification during the period until microorganisms settle on the ceramic beads 8a, and exhibit good adsorption purification ability from the initial stage of installation of the apparatus.

In FIG. 9, an activated carbon tank 30 is arranged upstream of the ceramic purification tank 8, and the activated carbon tank 30 is filled with activated carbon 8b. The activated carbon tank 30 filled with the activated carbon 8b is replaced with the ceramic purification tank 8
If the waste water passed through the activated carbon tank 30 flows into the ceramic purification tank 8, the load on the ceramic purification tank 8 is reduced, and the activated carbon tank 30 reduces the purification capacity of the ceramic purification tank 8. It complements well and improves the purification capacity as a whole. In addition, activated carbon tank 30
When the adsorption capacity of the activated carbon tank 30 is reduced, the activated carbon 8b in the activated carbon tank 30 alone can be easily replaced alone to regenerate the adsorption capacity. The one shown in FIG.
The activated carbon tank 30 is arranged downstream of the ceramic purification tank 8, and in this case, the load on the activated carbon tank 30 is reduced.

Next, in the configuration shown in FIG. 11, a supply pipe 20 for supplying clean water to the treated medium water storage tank 17 is connected to a valve 2.
4 is connected to the water pipe 23 through which tap water is supplied.
Is in a closed state, water for shower of the local cleaning device is supplied from the water pipe 23 to the toilet 25, and
The water for hand washing is also supplied from the water pipe 23. When the water level in the treated medium water storage tank 17 has dropped, the valve 24 is opened, and high quality water is being treated from the supply pipe 20. It can flow into the water storage tank 17. With such a piping configuration, high quality clean water is replenished in the treated medium water storage tank 17, and the piping configuration is simplified, and the replenishing pipe 20 and the clean water pipe 23 are connected. There is no need to provide separate pipes, and costs can be reduced.

Next, FIG. 12 shows an improvement in which the inflow of wastewater into the above-mentioned wastewater collecting basin 1 or the circulating medium water storage tank 9 can be controlled. A water level sensor 28 is provided in the catchment basin 1 or the circulating sewage storage tank 9, and the drainage pipe 3 and the rainwater pipe 4 are separately connected to the drainage basin 1 or the circulating sewage storage tank 9. The drain pipe 3 is provided with an electromagnetic valve 26, and an outlet pipe 3 a is formed from the drain pipe 3 in a detour shape on the upstream side of the electromagnetic valve 26. Similarly, an electromagnetic valve 27 is provided on the rainwater pipe 4, and an outflow pipe 4 a is formed upstream of the electromagnetic valve 27 and connected to the rainwater pipe 4 in a bypass shape.

In this embodiment, the drainage pipe 3 is configured so that the drainage of the washing and the washing surface flows thereinto.
The rainwater pipe 4 is configured such that rainwater and drainage of a bathtub flow into the rainwater pipe 4. That is, rainwater and bathtub drainage having relatively good water quality flow into the rainwater pipe 4, and highly polluted washing and washwater drainage flow into the drain pipe 3.

In such a configuration, for example, when the water level sensor 28 detects that the water level in the circulating intermediate water storage tank 9 is at the position a, the solenoid valves 26 and 27 are both closed to drain water. The inflow is stopped, and when the water level is b, the electromagnetic valve 27 is opened and the electromagnetic valve 26 is closed to allow rainwater and bathtub drainage to flow from the rainwater pipe 4, and the water level is at the position c. In this case, the solenoid valves 26 and 27 are opened together, and the drain valves 3 and the rainwater pipe 4 are used to drain water into the circulating intermediate water storage tank 9 from both the drain valves 3 and the rainwater pipe 4.
If it is controlled, rainwater and bathtub drainage with good water quality are preferentially flowed into the circulating medium water storage tank 9 to reduce the load required for subsequent purification, and to improve the quality of recycled water. Can be covered by a small purification device, and the water quality level can be reduced from the beginning compared to the type in which all of the domestic wastewater is taken into the drainage catchment tank 1 or the circulating sewage storage tank 9 and the excess amount overflows. It can be good. In particular, the sewage tank for circulation 9 that integrates
In this case, the water quality level at the time when the wastewater is introduced into the circulating intermediate water storage tank 9 is improved, and the size of the entire apparatus can be favorably reduced. When the solenoid valve 26 is closed, the washing and washing water are discharged to the sewage through the outflow pipe 3a. When the electromagnetic valve 27 is closed, rainwater and bathtub drainage are drained to sewage through the outflow pipe 4a.

[0029]

According to the present invention, domestic wastewater such as bath, washing, and washing surfaces is purified by circulating between a small-sized purifying device and a storage tank, and the treated water can be used as toilet washing water. In the wastewater recycling apparatus, the treated wastewater storage tank for storing the treated water is separately provided outside the circulation path, so that the wastewater is stored in the treated wastewater storage tank even immediately after the wastewater is taken into the purification device. The treated water is not polluted, and clean treated water can be used as toilet flush water.

Further, by disposing an electrolyzer for sterilizing the treated water inside or at the outlet side of the treated medium water storage tank, available chlorine (HClO) generated by the electrolyzer is treated. Effective germicidal power can be exerted on the treated water in the Jinzhong water storage tank.
Since the electrolyzer effectively functions and electrolyzes the treated water after treatment without reducing ClO) in the purifier, etc., the life of the electrode of the electrolyzer can be extended. Becomes

Further, domestic wastewater such as bath, washing, and washing surfaces can be collected in a water collecting basin, and circulated between a small purifying device and a storage tank to purify the wastewater, and the treated water can be used as toilet flushing water. In the wastewater recycling apparatus configured as described above, by integrating the water collecting basin and the storage tank, there is no need to provide a separate drainage water collecting basin, the entire apparatus is simplified, and the pipeline configuration and It can be configured with a reduced number of pumps, etc.
This has the effect of making the device more compact.

In addition, domestic wastewater such as baths, laundry,
In a wastewater reusing device configured to purify by a small purifying device and use the treated water as toilet cleaning water or the like, the purifying device includes a ceramic septic tank containing porous ceramic beads therein, Inside, the ceramic beads having different particle sizes are arranged in layers, and the activated carbon is mixed in some or all of the layers, so that the ceramic beads having different particle sizes are arranged in layers. Therefore, the resistance of water flow in the ceramic septic tank is reduced, and the resistance of flowing water during backwashing can also be reduced.In addition, since activated carbon is mixed, the purification performance is enhanced by the adsorption capacity of activated carbon. Activated carbon can help clean up well, especially during the period before microorganisms settle on the ceramic beads, It has the effect that it is possible to improve the cleaning capacity that.

In addition, domestic wastewater such as baths, laundry,
Purification treatment with a small purification device, in a wastewater reuse device configured to be able to use the treated water as toilet cleaning water, etc., the purification device, a ceramic septic tank in which ceramic beads having different particle sizes are layered, By having a separate activated carbon tank with activated carbon inside, it is possible to improve the purification capacity of wastewater through the activated carbon tank, and it is easy to replace if the activated carbon adsorption capacity in the activated carbon tank is reduced. It has an effect.

Further, in a wastewater recycling apparatus configured to collect rainwater, bathtub, washing, and washwater drainage in a water collecting section, perform purification treatment through a purification device, and use the treated water as toilet cleaning water, The rainwater and bathtub drainage with good water quality and the highly polluted laundry and washbasin drainage are led to the water collecting section with separate pipes, and the rainwater and bathtub drainage are preferentially taken into the water collecting section. By adopting a configuration that controls the opening and closing of piping, it is possible to reduce the load on purification by preferentially taking in rainwater and bathtub drainage with good water quality, and to reduce the size of the purification device and use good reused water. Has the effect that can.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a first embodiment of a detached house wastewater recycling apparatus.

FIG. 2 is a schematic configuration diagram of a second embodiment.

FIG. 3 is a schematic configuration diagram of a third embodiment.

FIG. 4 is a schematic configuration diagram of a fourth embodiment.

FIG. 5 is a schematic configuration diagram of a fifth embodiment.

FIG. 6 is a cross-sectional configuration diagram in which ceramic beads having different particle sizes are filled in layers in a ceramic septic tank.

FIG. 7 is a cross-sectional configuration diagram in which activated carbon is mixed in the middle layer in the ceramic septic tank.

FIG. 8 is a cross-sectional configuration diagram in which activated carbon is mixed in the upper layer in the ceramic septic tank.

FIG. 9 is a schematic configuration diagram in which an activated carbon tank is disposed upstream of a ceramic purification tank.

FIG. 10 is a schematic configuration diagram in which an activated carbon tank is arranged downstream of a ceramic purification tank.

FIG. 11 is a schematic configuration diagram of a wastewater treatment apparatus in which a supply pipe is connected to a water pipe to simplify a pipe configuration.

FIG. 12 is a schematic piping configuration diagram configured to preferentially allow rainwater and bathtub drainage to flow into a drainage catchment tank or a circulating medium water storage tank.

FIG. 13 is a schematic configuration diagram of a prior-art detached house drainage recycling apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drainage collecting tank 3 Drainage pipe 3a, 4a Outflow pipe 5 Pump 6 Inflow pipe 7 Biological purification tank 8 Ceramic purification tank 8b Activated carbon 9 Circulating intermediate water storage tank 14 Pipe line 15 Circulation path 16 Pump 17 Treated intermediate water storage tank 18 Electromagnetic Valve 19 Electrolyzer 21 Delivery pipe 22 Pump 23 Water pipe 24 Valve 25 Toilet bowl 26,27 Solenoid valve 30 Activated carbon tank P1 Lower layer P2 Middle layer P3 Upper layer

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical indication location C02F 1/50 510 C02F 1/50 510A 520 520P 531 531M 540 540B 550 550H 560 560B 560F 560H 560Z 1 / 76 1/76 A 3/00 3/00 A 3/06 ZAB 3/06 ZAB 3/10 3/10 Z (72) Inventor Tatsuro Yamamoto 5-1-1 Koie Honcho, Tokoname-shi, Aichi Pref. 72) Inventor Takaaki Ito 5-1-1 Koiehonmachi, Tokoname-shi, Aichi Prefecture Inax Corporation (72) Inventor Tokimasa Kamiya 5-1-1 Koiehonmachi, Tokoname-city, Aichi Prefecture Inax Corporation

Claims (6)

[Claims] 1. Waste water reused by purifying domestic waste water such as baths, washing, and washing surfaces by circulating the waste water between a small-sized purification device and a storage tank, and using the treated water as toilet wash water or the like. In the apparatus, a treated wastewater storage tank for storing the treated water is separately provided outside the circulation path, and the wastewater reuse apparatus for a detached house is characterized by being provided. 2. The wastewater recycling apparatus according to claim 1, wherein an electrolyzer for sterilizing the treated water is disposed inside or at the outlet of the treated intermediate water storage tank. . 3. Waste water such as bath, laundry, washing surface, etc. is collected in a water collecting basin, and purified by circulating between a small purification device and a storage tank, and the treated water can be used as toilet cleaning water. The drainage reuse device for a detached house, wherein the water collecting basin and the storage tank are integrated. 4. A wastewater reusing device configured to purify domestic wastewater such as a bath, a laundry, and a washing surface with a small-sized purifying device so that the treated water can be used as toilet washing water or the like. A ceramic septic tank containing porous ceramic beads therein, in which the ceramic beads having different particle diameters are arranged in layers, and activated carbon is mixed in some or all of the layers. A drainage reuse device for a house. 5. A wastewater recycling apparatus comprising: purifying domestic wastewater such as a bath, a washing machine, and a washbasin by a small-sized purifying apparatus, and using the treated water as toilet flushing water. A wastewater reuse system for a detached house, comprising: a ceramic septic tank in which ceramic beads having different particle diameters are arranged in layers; and a separate activated carbon tank in which activated carbon is installed. 6. A wastewater recycling apparatus configured to collect rainwater, bathtub, laundry, and washwater drainage in a water collection unit, perform purification treatment through a purification device, and use the treated water as toilet wash water. The rainwater and bathtub drainage with good water quality and the highly polluted laundry and washbasin drainage are led to the water collecting section with separate pipes, and the rainwater and bathtub drainage are preferentially taken into the water collecting section. A drainage reuse device for a detached house, characterized in that the piping is controlled to open and close.