JP2001232385A - Combined treating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combined treating apparatus which dissolves the disposal problem in a septic tank for single treatment and, at the same time, enables miscellaneous sewage treatment by effectively utilizing the existing septic tank for single treatment at a cost lower than by newly purchasing a septic tank for combined treatment. SOLUTION: This combined treating apparatus allows the combined treatment of waste water by connecting a second septic device 15 for treatment to the septic tank (device) 1 for single treatment by means of a piping 26. The second septic device 15 for treatment has at least a contact aeration tank 16 which performs aerobic treatment and a sedimentation tank 17 and is connected with the septic device 1 for single treatment by the piping (advection pipe) 26. Thus, this combinedly treating apparatus is constituted in such a manner that the waste water from the septic device 1 for single treatment is made to flow into the contact aeration tank 16 of the second septic device 15 for treatment. Further, this apparatus has such a constitution that the waste water c of bathroom is made to flow into the advection pipe 26 which is connected with the second septic device 15 for treatment by a piping 29 for the waste water of bathroom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to human waste, kitchen wastewater,
The present invention relates to a combined treatment device capable of purifying laundry drainage, washing surface and bathroom drainage.

[0002]

2. Description of the Related Art Conventionally, a single treatment septic tank has been used as an apparatus for purifying human waste. FIG. 9 is a schematic cross-sectional view showing a single-contact treatment septic tank of the separation contact aeration type. Human waste flows into the sedimentation separation chamber 3 from the inflow port 2, is subjected to solid-liquid separation and anaerobic treatment, and is transferred to the contact aeration chamber 4.
In the contact aeration chamber 4, the transferred water is agitated by the bubbles of air diffused from the diffuser tube 7 and comes into contact with the contact material 8, whereby the nutrient substrate is gradually oxidized and removed. If the contact material 8 is continuously stirred, the biofilm is thickly deposited and clogged. Therefore, the biofilm is peeled off by periodically discharging air bubbles from the backwash tube 9. After the water that has passed through the contact aeration chamber 4 is subjected to sedimentation and separation of solids in the sedimentation chamber 5, the separated supernatant liquid is transferred to the disinfection chamber 6, sterilized, and subjected to the outlet 1.
It is configured to be discharged from 0.

[0003]

However, the single treatment septic tank is limited in that the type of water to be treated is limited to human waste, and cannot treat household wastewater such as kitchen drainage, laundry drainage, wash sink drainage and bathroom drainage. have. This problem can be solved by removing the existing single treatment septic tank and installing a new merged treatment septic tank. However, not only is the construction cost high, but also many single treatment septic tanks are made of FRP. Therefore, a new problem has arisen regarding the disposal of the single-use septic tank that is no longer required. In addition, when burying a single treatment septic tank without excavating it, there is no problem with disposal, but another problem arises that land cannot be effectively used.

[0004] The present invention has been made in view of the above problems, and solves the disposal problem of the single treatment septic tank by effectively utilizing the existing single treatment septic tank.
It is an object of the present invention to provide a merger treatment apparatus that can perform domestic wastewater treatment at a lower cost than purchasing a merger treatment septic tank.

[0005]

The merge processing apparatus according to the present invention has the following arrangement. (1) By connecting a second treatment / purification device to an existing single treatment / purification tank (apparatus) by piping, it is possible to perform a wastewater merger treatment. The second treatment / purification apparatus has a contact aeration tank and a sedimentation tank for performing at least aerobic treatment, and a pipe connected to the single treatment / purification apparatus purifies wastewater from the single treatment / purification apparatus in the second treatment / purification. It is configured by an advection pipe that flows into the contact aeration tank of the apparatus, and the excrement other than the bathroom drainage, kitchen drainage, washing drainage, and the like are caused to flow into the inflow port of the single treatment and purification apparatus by piping. (2) The bathroom drainage has a configuration in which the bathroom drainage flows into the advection pipe connected to the second treatment / purification device via the bathroom drainage pipe. (3) Bathroom drainage is configured to flow into the aerobic treatment section (disinfection chamber) of the second treatment / purification device via the bathroom drainage pipe. (4) The bathroom drainage pipe has a configuration provided with a flow control valve. (5) A flow control tank is provided between the single treatment / purification device and the second treatment / purification device, and wastewater discharged from the single treatment / purification device is supplied to the second treatment / purification device via the flow control tank. It has a configuration that flows into the contact aeration tank.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A single treatment purification device (hereinafter referred to as a single treatment purification tank) constituting a merged treatment device of the present invention is
There is no particular limitation as long as it has at least an anaerobic treatment section and / or an aerobic treatment section. In particular,
As described in the related art, a device having an inflow port and an outflow port, and provided with a sedimentation separation chamber, a contact aeration chamber, a sedimentation chamber, and a disinfection chamber from the upstream side can be suitably used.

The combined processing apparatus used in the present invention is not particularly limited as long as it has at least a contact aeration tank, a settling tank and a disinfection tank for performing aerobic treatment. Preferably, the contact aeration tank is used. Uses a material having an aerobic filter medium (contact material) and a diffuser tube and a backwash tube arranged at the bottom.

[0008] The contact aeration tank is a part for performing aerobic treatment by agitating the treated water advancing from the single treatment septic tank by air bubbles discharged from a diffuser pipe arranged at the bottom. By the stirring, the treated water comes into contact with the biofilm formed on the contact material provided in the contact aeration tank, and the decomposition of organic substances and the nitrification of ammonia are performed by aerobic microorganisms. However, if the stirring is continued, the biofilm generated on the surface of the contact material is thickly deposited and clogged, so that the biofilm is periodically peeled off by air bubbles discharged from the backwash tube provided below the contact material. Is going. In addition, the peeled biofilm is returned to the anaerobic treatment section of the single treatment septic tank, or is discharged outside the system.

The advection tube used in the present invention is for advancing wastewater from a single treatment septic tank to a contact aeration tank. Preferably, the wastewater from the single treatment septic tank is sterilized by removing a disinfecting agent from a disinfecting room. Advection without This is because, when wastewater sterilized by chlorine disinfection or the like flows into the contact aeration tank of the second treatment / purification device, phenomena such as killing microorganisms adhering to the contact material occur and inhibit biological reactions. This is because there is an inconvenience.

[0010] The washing and drainage transfer pipe used in the present invention transfers the drainage obtained by washing the contact material provided in the contact aeration tank of the second processing and purification apparatus of the combined processing apparatus to immediately after the inlet of the single processing and purification tank. It is to let. Mainly, wastewater containing a large amount of biofilm separated from the contact material of the contact aeration tank of the second treatment / purification apparatus is transferred to the single treatment / purification tank. Further, when draining the waste water from the contact aeration tank of the second treatment / purification device directly to the outside of the system, it is not necessary to provide a washing drain transfer pipe.

In the present invention, a pipe is provided at the inlet of the single treatment septic tank for allowing human waste other than bathroom drainage, kitchen wastewater, washing wastewater and the like to flow into the single treatment septic tank. This is because the bathroom drainage is less contaminated and has a larger amount than other household wastewater, and may be discharged directly to the outside of the system without passing through the single treatment purification tank and the second treatment purification device. Because.

In the present invention, a bathroom drainage pipe for bathroom drainage may be provided separately from other domestic drainage pipes, and only bathroom drainage may flow directly into the second treatment and purification device for treatment. Also, the bathroom wastewater is allowed to flow directly into the disinfection tank of the second treatment and purification device,
It may be released after sterilization. Furthermore, washing drainage may be provided with a dedicated pipe and connected in the middle of the bathroom drainage pipe to perform the same treatment as bathroom drainage and discharged to the outside of the system. This is because laundry wastewater is less contaminated and larger in quantity than kitchen wastewater and human waste.

In the present invention, it is preferable to provide a flow rate control valve in the bathroom drainage pipe. When the bathroom drainage is caused to flow into the second treatment and purification device by the flow rate control valve, the fluctuation of the inflow amount of the water is reduced to reduce the flow rate. Efficiently perform aerobic treatment of the aeration tank, or reduce fluctuations in the inflow of water when passing through the disinfection tank of the second treatment and purification device, and efficiently sterilize the water that has flowed into the disinfection tank. I have. However, when the washing drainage pipe is connected to the washing drainage pipe, it is preferable to provide the flow control valve upstream of the connection part of the washing drainage pipe. This is because the washing drainage is performed for each washing, rinsing, and dehydrating process of the washing machine, so that the washing drainage is quickly performed without the intervention of the flow control valve.

[0014] In the combined treatment apparatus used in the present invention, a flow rate regulating tank is provided between the single treatment purification tank and the second treatment purification apparatus and upstream of the contact aeration tank of the second treatment purification apparatus. It is preferable that the wastewater flowing into the treatment and purification device 2 is temporarily stored in the flow control tank, and then is allowed to flow into the contact aeration tank so that stable wastewater treatment can be performed.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Embodiment 1 FIG. 1 is a merge processing apparatus 100 showing an embodiment of the present invention.
(A) shows a schematic plan view,
(B) shows a schematic side sectional view. The single treatment septic tank 1 is an existing one, and its internal structure includes a first inlet 11, a sedimentation separation chamber 22, a contact aeration chamber 23, and a sedimentation chamber 2 from the upstream side.
4. Disinfection chamber 25 and first outlet 12 are provided. Then, the second treatment / purification device 15 is connected to and installed in the single treatment / purification tank 1.

The second treatment / purification device 15 includes a second contact aeration tank 16, a second settling tank 17, and a second disinfection tank 18 connected to the second inlet 13. The second contact aeration tank 16 has a contact member 19 which is an aerobic filter medium, and a lower part is provided with a diffuser member 20 for releasing air bubbles.
The air diffusing member 20 provided at the lower portion constantly discharges air bubbles in order to perform aerobic treatment. Also, the contact material 19
A backwash tube 21 is provided at the lower part of. The backwash tube 21 discharges air bubbles from the discharge port to peel off the biofilm deposited on the surface of the contact material 19.

Single treatment purification tank 1 and second treatment purification apparatus 1
5 is connected to the first outlet 12 of the single treatment septic tank 1.
This is performed by connecting the second inlet 13 of the second treatment / purification device 15 with the advection pipe 26. The advection tube 26
The wastewater is transferred from the single treatment / purification tank 1 to the second treatment / purification device 15. Further, the second treatment / purification device 15 has a cleaning / drainage transfer pipe 28 provided in the second contact aeration tank 16 via a pump 27. The washing drainage transfer pipe 28 is connected to the sedimentation separation chamber 22 of the single treatment septic tank 1.

Next, the flow of water will be described. Human waste, kitchen wastewater (including disposer wastewater), wash sink wastewater (hereinafter collectively referred to as wastewater a), and washing wastewater b are discharged from the home from the first inlet 11 of the single treatment septic tank 1 to the sedimentation separation chamber 22. It flows in and undergoes solid-liquid separation and anaerobic treatment. Then, the nutrient substrate is oxidized and removed in the contact aeration chamber 23. The drainage a and the washing drainage b that have passed through the contact aeration chamber 23 perform sedimentation separation of solids in the sedimentation chamber 24,
The water flows from the disinfection chamber 25 into the advection tube 26 via the first outlet 12.

The waste water a and the laundry waste water b flow through the advection pipe 26 from the second inlet 13 to the second treatment and purification device 15. The drainage a and the washing drainage b are subjected to aerobic treatment by discharging air bubbles from the air diffuser 20 in the second contact aeration tank 16 to remove solid substances, and are transferred to the second settling tank 17. I do. The drainage a and the washing drainage b flow into the disinfection tank 18 from the sedimentation tank 17 and are discharged from the second outlet 14 after being subjected to a sterilization treatment.

The second contact aeration tank 16 periodically closes the backwash tube 2 because a thick biofilm is deposited on the contact material 19 and closed.
Air bubbles are discharged from 1 to detach the biofilm from the contact material 19. The detached biofilm is pulled out from the washing drainage transfer pipe 28 by operating the transfer pump 27,
It is transported to the precipitation separation chamber 22. Then, the wastewater containing the separated biofilm flows into the sedimentation separation chamber 22, and promotes aeration with fine aerobic substances. In addition, contact aeration tank 1
In the case where the wastewater after washing 6 is directly discharged to the outside of the system, the washing wastewater transfer pipe 28 may not be provided.

Embodiment 2 In this embodiment, a bathroom drainage pipe 29 is connected to the advection pipe 26 shown in Embodiment 1. ... See FIG. 2 In the combined treatment and purification apparatus 100 of this embodiment, the bathroom drainage c is transferred to the second treatment and purification apparatus 15 through the bathroom drainage pipe 29. Bathroom drainage is contact tank 16 and sedimentation tank 17
And sterilized in the disinfection tank 18 and discharged out of the system.

Embodiment 3 In the combined treatment and purification apparatus 100 of this embodiment, a bathroom drainage pipe 29 is connected to the disinfection tank 18 of the second treatment and purification apparatus 15. As a result, the bathroom drainage c is only sterilized in the disinfection tank 18 and discharged out of the system. ... See Fig. 3

Embodiment 4 In the combined treatment and purification apparatus 100 of this embodiment, a washing drainage pipe 30 is connected in the middle of a bathroom drainage pipe 29. The washing drainage pipe 30 is for flowing the washing drainage b flowing together with the drainage a separately from the drainage a. The washing drainage pipe 30 is caused to flow in the middle of the bathroom drainage pipe 29 to perform the same processing as the bathroom drainage c. To do. The present invention is also applicable to a case where the bathroom drain pipe 29 is connected to the disinfection tank 18. ... See Fig. 4

Embodiment 5 In the combined treatment and purification apparatus 100 of this embodiment, a flow control valve 31 is provided in a bathroom drain pipe 29. The bathroom drainage c generates a large amount of drainage of about 200 to 300 L in a few minutes. For this reason, if the capacity of the contact aeration tank 16 is not ensured to be sufficiently large, the wastewater that is not treated may be discharged as it is. Therefore, when the capacity of the second contact aeration tank 16 cannot be sufficiently secured,
By providing the flow rate regulating valve 31 in the bathroom drain pipe 29, the bathroom drain c flows into the second contact aeration tank 16 little by little, so that stable processing is performed. ... See Fig.5

Embodiment 6 In this embodiment, a washing drainage pipe 30 is connected in the middle of a bathroom drainage pipe 29 provided with a flow control valve 31. At this time, it is preferable that the flow control valve 31 is provided upstream of a portion of the bathroom drain pipe 29 into which the laundry drain pipe 30 flows, and that the washing drain does not pass through the flow control valve 31.
... see Fig. 6

Embodiment 7 In this embodiment, a flow regulating tank 32 is provided between the single treatment / purification tank 1 and the second treatment / purification unit 15. In the present embodiment, the drainage a, the washing drainage b, and the bathroom drainage c are once flowed into the flow control tank 32, and the second drainage is performed using the pump 33.
Is transferred to the contact aeration tank 16. This allows
Even if a large amount of drainage of about 200 to 300 L is generated in a few minutes such as bathroom drainage c, the wastewater is temporarily stored in the flow control tank 32,
The pump 33 allows the waste water to flow into the contact aeration tank 16 little by little, thereby performing a stable treatment. ... See Fig. 7

Embodiment 8 In this embodiment, the second processing and purifying apparatus 15 and the flow control tank 3
2 is connected to the pipe without being integrated. With such a configuration, the second treatment / purification device in which the flow control tank 32 is buried underground, and the drains a, b, and c of the flow control tank 32 are connected to the pipe 40 by the pump 33 and installed on the ground. Fifteen
It can be configured to flow into the inside. In this configuration, only the flow control tank 32 is buried, and the second treatment / purification device 15 can be installed on the ground. ... Figure 8
reference

[0028]

According to the present invention, by utilizing an existing single treatment / purification apparatus (tank), it is possible to perform a combined treatment of human waste and household wastewater, and a single treatment / purification tank is disposed of and a new combined treatment / purification tank is installed. It is possible to perform the merger process at a lower cost than in the case of (1), and it is possible to solve the disposal problem of the single treatment septic tank. In addition, by making the bathroom drainage pipe a separate pipe, the bathroom wastewater, which had a large amount compared to other household wastewater and made the wastewater treatment unstable, was treated directly or by the second treatment purification device, or sterilized. Only to perform the discharge to the outside of the system, and the wastewater treatment can be performed stably. further,
By discharging the bathroom wastewater directly into the second treatment / purification device without passing through the single treatment / purification tank, or directly discharging or sterilizing it and discharging it to the outside of the system, it is possible to prevent sludge from flowing out of the single treatment / purification tank and to perform aerobic treatment. Can be performed efficiently, so that the capacity of the contact aeration tank can be made compact, and the entire system can be downsized.
In addition, by providing a flow control valve in the bathroom drainage pipe,
There is no need to increase the size of the contact aeration tank or the disinfection tank of the second treatment and purification device, and the wastewater can be efficiently aerobicly treated or sterilized. Further, by providing a flow control tank in the second treatment / purification apparatus, it is possible to perform stable wastewater treatment. In particular, a configuration in which the second treatment / purification apparatus and the flow control tank are connected to a pipe without being integrated is provided. By installing the second treatment and purification device on the ground, the construction cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic plan view and a schematic side sectional view of a merged processing apparatus, showing a first embodiment of the present invention.

FIG. 2 is a schematic plan view of a merged processing apparatus according to a second embodiment of the present invention.

FIG. 3 is a schematic plan view of a merged processing apparatus according to a third embodiment of the present invention.

FIG. 4 is a schematic plan view of a merged processing apparatus according to a fourth embodiment of the present invention.

FIG. 5 is a schematic plan view of a merged processing apparatus according to a fifth embodiment of the present invention.

FIG. 6 is a schematic plan view of a merged processing apparatus according to a sixth embodiment of the present invention.

FIG. 7 is a schematic plan view of a merged processing apparatus according to a seventh embodiment of the present invention.

FIG. 8 is a schematic plan view of a merged processing apparatus according to an eighth embodiment of the present invention.

FIG. 9 is an explanatory side view showing a conventional example of a separate contact aeration type single treatment septic tank.

[Description of Signs] 1 Separate treatment septic tank 2 Inlet 3 Sedimentation separation chamber 4 Contact aeration chamber 5 Sedimentation chamber 6 Disinfection chamber 7 Aeration tube 8 Contact material 9 Backwash tube 10 Outlet 11 First inlet 12 First outlet 13 second inlet 14 second outlet 15 second treatment and purification device 16 second contact aeration tank 17 second settling tank 18 second disinfection tank 19 second contact material 20 air diffuser 21 backwash Pipe 22 sedimentation separation chamber 23 contact aeration chamber 24 sedimentation chamber 25 disinfection chamber 26 advection pipe 27 transfer pump 28 washing drainage transfer pipe 29 bathroom drainage pipe 30 washing drainage pipe 31 flow control valve 32 flow control tank 33 pump

Claims (5)

[Claims] 1. A combined treatment apparatus which enables purification treatment of human waste, kitchen wastewater, washing wastewater, and washroom / bathroom wastewater by connecting a second treatment purification equipment to a single treatment purification equipment. The single treatment / purification device includes at least an anaerobic treatment section and / or
Or has an aerobic processing unit, the second processing purification device has at least an aerobic processing unit, the single processing purification device,
The second treatment and purification device is provided with an inflow port for human waste, kitchen wastewater, and laundry wastewater on the upstream side of the anaerobic treatment unit, and is provided with a wastewater outlet on the downstream side of the aerobic treatment unit of the second treatment and purification device. Is connected to the downstream side of the aerobic treatment section of the single treatment / purification apparatus by piping, and the wastewater from the single treatment / purification apparatus is configured to flow into the aerobic treatment section of the second treatment / purification apparatus by piping. Merger processing equipment. 2. The combined treatment apparatus according to claim 1, wherein a bathroom drainage pipe for transporting the bathroom wastewater is connected to a pipe connecting the single treatment purification device and the second treatment purification device. 3. The combined treatment system according to claim 1, wherein a bathroom drainage pipe for conveying the bathroom wastewater is connected to a downstream side of the aerobic treatment section of the second treatment and purification device. 4. The combined treatment apparatus according to claim 2, wherein the bathroom drainage pipe is provided with a flow rate control valve. 5. A flow control tank is provided between the single treatment / purification device and the second treatment / purification device, and waste water from the single treatment / purification device is supplied to the second treatment / purification device via the flow control tank. 5. The merge processing device according to claim 1, wherein the merge processing device is configured to flow into the gas processing unit.