JP2001179272A - Combined treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combined treatment septic tank, which can solve a disposal problem of an existing individual treatment septic tank and treat domestic miscellaneous wastewater at a cost lower than a cost required for newly purchasing a combined treatment septic tank by effectively utilizing the individual treatment septic tank. SOLUTION: A combined treatment device has a biological reaction part for carrying out aerobic treatment and a filtration part for filtering the drain on the downstream side of the biological reaction part. Piping connection to the individual treatment septic tank comprises a transfer pipe that makes the drain just before flowing into a sterilizing chamber of the individual treatment septic tank flow into the biological reaction part, a waste washing water transfer pipe that transfers washing water after washing the filtration part to an anaerobic treatment part or a sedimentation separation chamber of the individual treatment septic tank, and a return pipe that returns the waste water of the downstream side of the filtration part to the sterilizing chamber of the individual treatment septic tank. Bath drain piping for making a drain of a bath tub flow into the biological reaction part is mounted to the biological reaction part or the transfer pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a merge processing apparatus.

[0002]

2. Description of the Related Art Conventionally, a single treatment septic tank has been used as an apparatus for purifying human waste. FIG. 5 is a schematic cross-sectional view showing a separate contact aeration type single treatment septic tank. 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.
Released from 0.

[0003]

However, the single treatment septic tank has a problem that the type of water to be treated is limited to human waste, and it is not possible to treat household wastewater such as kitchen wastewater, laundry wastewater, washbasin wastewater and bathtub wastewater. 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 arises with respect to disposal of the single treatment 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 used effectively.

[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 system capable of treating household wastewater at a lower cost than purchasing a merger treatment septic tank.

[0005]

The present invention relates to the following. (1) In a merged treatment device that enables a merged treatment of wastewater by connecting a pipe to a single treatment septic tank, the merged treatment device includes a biological reaction section for performing aerobic treatment, and a biological reaction section thereof. A filtration unit for filtering wastewater on the downstream side of the process, and a pipe connection to the single treatment septic tank, the advection to flow the wastewater immediately before flowing into the disinfection chamber of the single treatment septic tank into the biological reaction unit A pipe, a washing drainage transfer pipe for transferring the wastewater from which the filtration section has been washed to the anaerobic treatment section or the sedimentation separation chamber of the single treatment septic tank, and returning the wastewater downstream of the filtration section to the disinfection chamber of the single treatment septic tank. A merging treatment device, wherein a bathtub drainage pipe is provided in the biological reaction section or the advection pipe, which is formed by a return pipe and allows drainage from the bathtub to flow into the biological reaction section. (2) The merging treatment device according to (2), wherein the bathtub drainage pipe is provided with a flow control valve. (3) The biological reaction section has a flow control tank on its upstream side,
The combined treatment apparatus according to (1) or (2), wherein the wastewater from the single treatment septic tank and the bathtub flows into the biological reaction section via the flow rate adjusting tank.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The single treatment septic tank to which the combined treatment apparatus of the present invention is connected by piping is not particularly limited as long as it has at least an anaerobic treatment section or a sedimentation separation chamber and a disinfection chamber. Specifically, 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 is preferably used. be able to.

[0007] The combined treatment apparatus used in the present invention is not particularly limited as long as it has at least a biological reaction section for performing aerobic treatment and a filtration section for filtering wastewater. To describe the biological reaction section and the filtration section more specifically, as an example, a carrier is filled in a tank to form a carrier layer, and a diffuser is provided below and inside the carrier layer. Aerobic treatment can be performed mainly in the carrier layer above the installed diffuser, and filtration can be mainly performed in the carrier layer below the diffuser installed inside the carrier layer. Further, as another example, an upper and lower carrier layer separated by a water flow plate is formed, and an air diffuser is provided below each carrier layer, so that the carrier layer which is on the upstream side when water flows is provided. As a biological reaction section, and the carrier layer on the downstream side can be used as a filtration section.

[0008] Since the carrier used in the bioreaction section can hold a large amount of microorganisms, it can be synthesized in the form of a net-like cylinder, a skeleton-like sphere, a streak, a small cylinder, a corrugated plate, a tube, a fiber entanglement, or the like. Molded articles made of resin, molded articles made of synthetic resin having closed cells or communicating cells, anthracite (anthracite),
An inorganic substance such as silica sand or ceramic can be suitably used.

As the carrier (filter medium) used in the filtration section, the same carrier as the carrier used in the biological reaction section can be suitably used, but may be different. The air diffuser arranged at the bottom of the part to be filtered does not continuously discharge air bubbles in the normal state, and the carrier keeps the stationary state and maintains an environment that facilitates filtration. Since the biofilm is deposited thickly on the carrier when it is performed, the carrier is agitated by periodically discharging air bubbles, and the biofilm is separated from the carrier. The biofilm separated by washing the carrier is preferably transferred to an anaerobic treatment section or a sedimentation separation chamber of a single treatment septic tank by a washing drainage transfer pipe.

[0010] The advection tube used in the present invention transfers wastewater from the single treatment septic tank to the biological reaction section, and the wastewater from the single treatment septic tank is the wastewater immediately before flowing into the disinfection room. Specifically, it is preferable to drain the wastewater from the contacting chamber or sedimentation chamber of the single treatment septic tank, and to transfer the wastewater to the biological reaction section. When a flow control tank is provided on the upstream side of the biological reaction section, the wastewater from the single treatment / purification tank is once transferred to the flow control tank and then to the biological reaction section.

The washing and drainage transfer pipe used in the present invention transfers wastewater from the filtration section of the combined treatment apparatus to the anaerobic treatment section or the sedimentation separation chamber of the single treatment / purification tank. The wastewater containing a large amount of biofilm separated from the carrier is transferred.

The return pipe used in the present invention returns wastewater downstream of the filtration section to the disinfection chamber of the single treatment septic tank, and the returned wastewater is subjected to a sterilization treatment and discharged to the outside of the system. Is done.

The bathtub drainage pipe used in the present invention is for draining the wastewater from the bathtub and the bathroom into the biological reaction section. Even if the wastewater from the bathtub and the bathroom flows directly into the biological reaction section, the flow rate is once adjusted. You may make it flow into a biological reaction part after flowing into a tank. Further, the wastewater passing through the bathtub drainage pipe includes at least the wastewater from the bathtub and the bathroom, and in addition to the bathtub drainage, washing wastewater with a low degree of dirt may flow.

[0014] It is preferable to provide a flow control valve in the bathtub drainage pipe. In this way, a large amount of wastewater from the bathtub and the bathroom generated at a time is gradually flown into the biological reaction section, and stable treatment is performed. Can be performed. Also, instead of providing a flow control valve, a flow control tank is provided upstream of the biological reaction section, and the wastewater flowing into the combined treatment device is temporarily stored in the flow control tank, and then flows into the biological reaction section. It is also preferable to perform stable wastewater treatment.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention, in which a combined treatment apparatus is connected to a single treatment septic tank by piping. (A) shows a schematic plan view, and (b) shows a schematic sectional side view. The single treatment septic tank 1 is an existing one, and its internal structure includes a first inflow port 11, an anaerobic treatment chamber 22, a contact aeration chamber 4, a sedimentation chamber 29, a disinfection chamber 16, a first outflow port 12 from the upstream side. Is provided. Then, in order to be able to carry out the merger treatment using the single treatment septic tank 1, the merger treatment apparatus 15 of the present invention is newly added.
Is installed.

The combined treatment apparatus 15 has a biological filtration tank 17 inside thereof, and the biological filtration tank 17 has water passing members 30, 31, which prevent the carrier from passing above and below the tank and allow the waste water to pass through.
The carrier is filled between the water-permeable members 30 and 31 and between the water-permeable members 31 and 32, the upper carrier layer is formed as the biological reaction section 18, and the lower carrier layer is formed as the filtration section 19. I have. Air diffusion members 20 and 21 are provided below the biological reaction unit 18 and the filtration unit 19. The air diffusing member 20 provided at the lower part of the biological reaction part 18 is used for performing aerobic treatment and constantly discharges air bubbles, but is provided at the lower part of the filtering part 19. The air diffusing member 21 is used at the time of cleaning for removing the biofilm, and is used once a day.
The air bubbles are discharged for about 1 to 30 minutes. Further, a treated water storage unit 34 is provided downstream of the filtration unit 19.

The pipe connection between the single treatment septic tank 1 and the combined treatment apparatus 15 is performed by connecting the sedimentation chamber 29 and the second inflow port 13 with an advection pipe 37.
In addition to diverting the wastewater from the single treatment septic tank 1 to the merger treatment device 15, the drainage of the bathtub and the bathroom is diverted to the merger treatment device 15 by using the bathtub drainage pipe 26. In addition, the second outlet and the disinfection chamber 16 are connected by a return pipe 38 so as to return wastewater from the treated water storage section 34 to the disinfection chamber 16.

The flow of water will be described. Human waste discharged from home, kitchen wastewater (including disposer wastewater),
Wash drainage and laundry drainage (hereinafter collectively referred to as drainage a)
Flows into the anaerobic treatment chamber 22 from the first inlet 11 to be subjected to solid-liquid separation and anaerobic treatment, and the oxidative removal of nutrient substrates is performed in the contact aeration chamber 4. The waste water a that has passed through the contact aeration chamber 4 is subjected to sedimentation separation of solids in the sedimentation chamber 29,
It flows into the advection tube 37 via the first outlet 12.

In the advection pipe 37, the drainage from the bathtub and the bathroom (hereinafter referred to as drainage b) flowing from the bathtub drainage pipe 26 and the drainage a merge, and the merged treatment apparatus 1 is supplied through the second inlet 13.
Advancing to 5 The wastewaters a and b are subjected to aerobic treatment by discharging air bubbles from the diffusing member 20 in the biological reaction unit 18, and then performing aerobic treatment with oxygen brought in from the biological reaction unit 18 in the filtration unit 19. , Remove solid matter,
It flows to the treated water storage unit 34. The wastewaters a and b flow into the disinfection chamber 16 from the treated water storage section 34 via the return pipe 38, and are discharged from the first outlet 12 after being subjected to the sterilization processing.

If filtration is continued, the filtration section 19 will thicken the biofilm on the carrier and close it, so that air bubbles are periodically discharged from the air diffusing member 21 to stir the carrier, The biofilm is stripped from the By operating the transfer pump 23, the separated biofilm is pulled out from the washing drainage transfer pipe 24 and returned to the anaerobic treatment chamber 22.

FIG. 2 is a schematic plan view of a combined treatment apparatus in which a flow control valve is provided in the bathtub drainage pipe shown in FIG. The drainage b is about 2 minutes in a few minutes because it is bathtub and bathroom drainage.
Generates a large amount of wastewater of 00 to 300 l. Therefore, if the capacity of the biological filtration tank 17 is not sufficiently large, the wastewater that is not treated may be discharged as it is. Therefore, when the capacity of the biological filtration tank 17 cannot be sufficiently ensured, the drainage b is flowed into the biological filtration tank 17 little by little by providing a flow control valve 27 in the bathtub drain pipe 26 to perform a stable treatment. To do.

FIG. 3 is a schematic sectional side view showing a case where a flow rate adjusting tank is provided in the combined processing apparatus of the present invention. In the present embodiment, the drainage waters a and b are once flowed into the flow control tank 28, and are then transferred to the biological filtration tank 17 using the pump 35. When the flow rate adjusting tank 28 is used, stable processing can be performed without using the flow rate adjusting valve 27 as shown in FIG.

FIG. 4 is a schematic cross-sectional side view of the merged processing apparatus in which the merged processing apparatus and the flow rate control tank are connected to each other without being integrated. With such a configuration, only the flow rate adjusting tank 36 needs to be buried in the ground, and the merger processing apparatus 15 can be installed on the ground.

[0024]

According to the present invention, the merger treatment can be performed by using the existing single treatment septic tank, so that the merger treatment can be performed at a lower cost than disposing the single treatment septic tank and newly installing the merger treatment septic tank. It is possible to do so, and there is no need to dispose of a single treatment septic tank. In addition, when the flow rate control valve is provided in the bathtub drainage pipe, it is not necessary to increase the capacities of the biological reaction section and the filtration section, and it is possible to reduce the size of the combined processing apparatus. Furthermore, in the case where the flow control tank is provided in the merged processing device, stable drainage treatment can be performed, especially if the piping is connected without integrating the merged processing device and the flow control tank. The installation cost can be kept low by installing the merged processing equipment on the ground.

According to the present invention, the wastewater that has passed through the single treatment septic tank is simply flowed into the merger and the wastewater immediately before flowing into the disinfection chamber of the single treatment septic tank is not merged. Since it flows into the treatment device and then returns to the disinfection chamber, it is possible to utilize the disinfection room attached to the existing single treatment septic tank without providing a disinfection room in the combined treatment device. The number of members can be reduced and resources can be effectively used.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a merge processing apparatus showing an embodiment of the present invention, wherein (a) shows a schematic plan view and (b) shows a schematic side sectional view.

FIG. 2 is a schematic plan view of a combined treatment apparatus in which a flow control valve is provided in a bathtub drainage pipe shown in FIG.

FIG. 3 is a schematic side cross-sectional view in which a flow control tank is provided in the combined processing apparatus.

FIG. 4 is a schematic cross-sectional side view in which the merging treatment apparatus and the flow rate adjusting tank are connected to each other without being integrated.

FIG. 5 is a schematic cross-sectional view of a separate contact aeration type single treatment septic tank showing a conventional example.

[Explanation of symbols]

1. Separate treatment septic tank 2. Inlet 3. Sedimentation separation chamber 4. 4. Contact aeration chamber Settling chamber 6. Disinfection room 7. 7. diffuser tube Contact material 9. Backwash tube 10. Outlet 11. First inlet 12. First outlet 13. Second inlet 14. Second outlet 15. Merger processing device 16. Disinfection room 17. Biological filtration tank 18. Biological reaction section 19. Filtration unit 20. Diffuser member 21. Diffuser member 22. Anaerobic treatment chamber 23. Transfer pump 24. Cleaning drainage transfer pipe 26. Bathtub drainage piping 27. Flow control valve 28. Flow control tank 29. Sedimentation chamber 30. Water passing member 31. Water passing member 32. Water passing member 34. Treated water storage unit 35. Pump 36. Flow control tank 37. Advection tube 38. Return pipe

Claims (3)

[Claims] Claims: 1. A merger treatment device which enables a merger treatment of wastewater by connecting a pipe to a single treatment septic tank, wherein the merger treatment device comprises a biological reaction section for performing aerobic treatment, and a biological reaction part thereof. A filtration section for filtering the wastewater downstream of the reaction section, and a pipe connection to the single treatment septic tank, and the wastewater immediately before flowing into the disinfection chamber of the single treatment septic tank flows into the biological reaction section. An advection pipe to be washed, a washing wastewater transfer pipe for transferring the wastewater washed from the filtration section to the anaerobic treatment section or the sedimentation separation chamber of the single treatment septic tank, and a wastewater downstream of the filtration section to the disinfection chamber of the single treatment septic tank. A return pipe for returning the bath, and a bathtub drainage pipe for allowing drainage from the bathtub to flow into the biological reaction section is provided in the biological reaction section or the advection pipe. 2. The combined treatment apparatus according to claim 1, wherein the bathtub drainage pipe is provided with a flow control valve. 3. The biological reaction section has a flow control tank on the upstream side thereof, and the wastewater from the single treatment septic tank and the bath tub flows into the biological reaction section through the flow control tank.
Merger processing device described in.