JP5000594B2 - Merger processing septic tank - Google Patents

Description

  The present invention relates to a merged treatment septic tank.

  The purification process of manure is performed using a single treatment septic tank.

  FIG. 8 is a longitudinal side view showing a conventional single-treatment septic tank of a separated contact aeration system. In the single treatment septic tank 1, manure is allowed to flow from the inlet 2 into the precipitation separation chamber 3 to perform solid-liquid separation and anaerobic treatment, and then transferred to the contact aeration chamber 4. In the contact aeration chamber 4, the agitated sewage is agitated by bubbles of air diffused from the diffuser tube 7 and brought into contact with the contact material 8, and the nutrient substrate is oxidized and gradually removed. If the contact material 8 is continuously stirred, the biofilm accumulates thickly and closes. Therefore, the biofilm is peeled from the contact material 8 by periodically discharging air bubbles from the backwash tube 9. The sewage that has passed through the contact aeration chamber 4 is subjected to solid separation in the sedimentation chamber 5, and the supernatant is transferred to the disinfection tank 6 for sterilization and discharged from the outlet 10.

In this single treatment septic tank, the type of sewage to be treated is limited to manure, and there is a problem that domestic wastewater such as kitchen wastewater, laundry wastewater, bathroom wastewater and bathtub wastewater cannot be treated.
This problem can be solved by removing the existing single processing septic tank and installing a new merged processing septic tank, but not only the construction cost is high, but many single processing septic tanks are made of FRP. Therefore, a new problem also arises regarding the disposal of the single processing septic tank that has become unnecessary.

  Moreover, if the single treatment septic tank is buried without being dug up, there is a problem that the land cannot be effectively used although the problem of waste disposal does not occur.

  An object of the present invention is to propose a merged treatment septic tank that can be realized by effectively utilizing an existing single treatment septic tank and a merged treatment apparatus therefor.

The merged treatment septic tank of the present invention replaces the first anaerobic treatment part and the contact material installed in the contact aeration chamber of the existing single treatment septic tank with an irregularly filled anaerobic filter medium, from the first anaerobic treatment part. A single treatment septic tank obtained by changing the waste water into a second anaerobic treatment unit that performs solid-liquid separation and anaerobic treatment again, a merger treatment apparatus, an outlet of the single treatment septic tank, and an inlet of the merger treatment apparatus Connecting pipes to be connected, connecting pipes for inflowing urine, kitchen wastewater, washing wastewater and washing wastewater to the inlet of the single treatment septic tank, and providing the biological filtration tank and disinfection tank to the combined treatment apparatus The bathtub drain pipe for draining the bathtub drainage is connected to the connection pipe connecting the outlet of the single processing septic tank and the inlet of the merger processing apparatus, or directly connected to the disinfection tank of the merger processing apparatus. , the merger process KaSo Pull the cleaning effluent from the biological filtration tank, characterized in that a washing water discharge transfer tube for returning to the first anaerobic treatment section.

The present invention is characterized in that, in the above configuration, the bathtub drain pipe is provided with a flow rate adjusting valve.
The present invention is characterized in that, in the above configuration, the merger processing apparatus includes a flow rate adjusting tank.

Since the present invention can configure the merged treatment septic tank using the existing single treatment septic tank, it can be realized at a lower cost than disposing the existing single treatment septic tank and installing a new merged treatment septic tank. In addition, it is not necessary to discard the single treatment septic tank.
And by replacing the aerobic treatment tank of the single treatment septic tank with an anaerobic filter medium with irregular filling, the sludge storage capacity is improved, and even if the inflow water other than manure increases, the sludge extraction frequency is increased. The increase can be reduced.
In addition, by using a separate bathtub drainage pipe, the bathtub drainage, which has been unstable due to its large volume compared to other domestic wastewater, can be treated directly or by disinfection sterilization treatment directly or by a combined treatment device. Can be discharged outside the system, and the purification treatment can be performed stably.

Furthermore, if it is configured so that the bathtub drainage does not pass through the existing single-treatment septic tank, but directly flows into or discharges directly into the combined treatment apparatus or is disinfected and sterilized, it is discharged outside the system. The sludge can be prevented from flowing out without increasing the capacity and the biological filtration process can be performed efficiently, so the capacity of the biological filtration tank can be made compact and the entire system can be downsized. Is possible.
Moreover, if the flow regulating valve is provided in the bathtub drainage pipe, it is not necessary to enlarge the biological filtration tank or the disinfection tank of the combined treatment apparatus, and the wastewater can be biologically filtered or sterilized efficiently.

Furthermore, when the flow control tank is provided in the merger processing apparatus, stable purification treatment can be performed. In particular, if the merger processing apparatus and the flow control tank are separated and connected by piping, the merger Construction cost can be reduced by installing the processing equipment on the ground.
Moreover, since this invention can also newly establish a merged process septic tank using a new single process septic tank and a merger processing apparatus, the production efficiency of a single process septic tank and a merged process septic tank can be improved.

  The single treatment septic tank in the present invention includes a first anaerobic treatment unit and a second anaerobic treatment unit, and is configured using a precipitation separation chamber and a contact aeration chamber in which air supply is stopped in an existing or existing single treatment septic tank. Specifically, as explained in the prior art, a single treatment septic tank having an inlet and an outlet and having a precipitation separation chamber, a contact aeration chamber, a precipitation chamber, and a disinfection chamber from the upstream side is preferably used. can do.

  The first anaerobic treatment section of the single treatment septic tank is preferably configured by filling an anaerobic filter medium when the filter medium or the like is not filled as in the precipitation separation chamber. Furthermore, preferably, the anaerobic filter medium has good irregular filling. This is because, in the anaerobic treatment in which the air is not forcibly agitated, the filter medium packed irregularly is easier to diffuse the treated water and can be used more effectively in the room.

  In the second anaerobic treatment section of the single treatment septic tank, the diffuser pipe installed in the contact aeration chamber may be removed, and the contact material (aerobic filter material) may be removed, but preferably, the anaerobic is as it is. Use as filter media. More preferably, it is replaced with a new irregularly packed anaerobic filter medium. This is because, in many cases, the aerobic filter medium is regularly packed, and in an anaerobic process in which the air is not forcibly agitated, the irregularly charged water is more easily diffused and the room can be used more effectively. Because.

  The merger processing apparatus in the present invention is not limited to the above as long as it includes at least a biological filtration tank for performing aerobic treatment and a disinfection tank for sterilization. The biological filtration tank is preferably provided with a biological reaction part having a diffuser tube disposed at the bottom and a filtration part having a diffuser tube disposed at the bottom.

  The biological reaction part is a part that discharges air bubbles from an air diffuser arranged at the bottom of the biological reaction part and performs an aerobic treatment, and those using a carrier can be suitably used. Here, the carrier is made of synthetic resin such as a net-like cylindrical shape, a skeleton-like spherical shape, a square shape, a small cylindrical shape, a corrugated plate shape, a tube shape, and a fiber entangled shape because it can hold many microorganisms. An inorganic body such as a molded body made of a synthetic resin having an open body, closed cell body or open cell body, anthracite (anthracite), silica sand, or ceramic can be suitably used. Moreover, this support | carrier can use any of the property of floating property and sedimentation property.

  A filtration part is a part which filters the treated water which passed the biological reaction part, and can use the thing using a support | carrier similarly to a biological reaction part. The carrier to be used may be the same form as that used in the biological reaction part or a different form. The air diffuser arranged at the bottom of the filtration unit does not discharge air bubbles in the normal state, and maintains an environment in which the carrier can be easily filtered while maintaining a stationary state. In order to peel the biofilm deposited thickly, air bubbles are discharged periodically and the carrier is stirred to peel the biofilm from the carrier. The peeled biofilm is preferably transferred to the anaerobic treatment chamber or the precipitation separation chamber of the single treatment septic tank by a washing drainage transfer pipe.

  The connection pipe between the single treatment septic tank and the merger treatment apparatus connects between the outlet of the single treatment septic tank and the inlet of the merger treatment apparatus. If a disinfection tank is installed on the upstream side of the outlet of the single treatment septic tank, remove the chemical used for disinfection.

  Since the bathtub drainage is less contaminated and larger than other household wastewater, it may be discharged directly outside the system without passing through the single treatment septic tank and the combined treatment apparatus. More preferably, a bathtub drainage pipe for bathtub drainage is separately provided, and only the bathtub drainage is treated by flowing into the merger processing apparatus, or sterilized by passing through the disinfection tank of the merger processing apparatus, and then out of the system. It should be released.

  It is preferable that the bathtub drain pipe is provided with a flow rate adjusting valve, and this flow rate adjusting valve reduces the inflow amount variation when the bathtub drainage or the washing wastewater flows into the combined treatment apparatus, and aerobic treatment of the biological reaction section. It is used to efficiently perform the sterilization of the treated water flowing into the disinfection tank of the combined treatment apparatus.

  Further, the merger processing apparatus is preferably provided with a flow rate adjusting tank integrated with the merged process apparatus or a separate flow rate adjusting tank connected to the merged processing apparatus. This flow rate adjustment tank is used to reduce the variation in the amount of treated water flowing into the tank that performs biological treatment and to efficiently perform the aerobic treatment.

  By the way, although the amount of dirt is larger than that of bathtub drainage, the amount of washing wastewater is less than that of kitchen drainage. Therefore, wash effluent is made to flow into the tub drain piping for tub drain, and, like the tub drain, not to go through the existing single-treatment septic tank, but to flow into the combined treatment equipment for treatment, or to be disinfected and sterilized. To be released. However, when the laundry drainage flows into the bathtub drainage pipe, the flow rate adjusting valve is installed upstream of the position where the laundry drainage flows into the bathtub drainage pipe so that the laundry drainage does not pass through the flow rate regulating valve. It is preferable to do. This is because the washing drainage does not change the amount of water so that the flow rate needs to be adjusted, the drainage is performed quickly, and the washing time having a plurality of steps such as washing, rinsing and dehydration is shortened as much as possible.

1st form FIG. 1 is the merged process septic tank which shows a 1st form , (a) is a figure which shows a plane and piping, (b) is a figure which shows a vertical side surface and piping.
The single treatment septic tank 1 includes a first inlet 2, a first anaerobic treatment chamber 11, a second anaerobic treatment chamber 12, a sedimentation chamber 5, a disinfection tank 6, and a first outlet 10 from the upstream side.

  The single treatment septic tank 1 utilizes an existing septic tank, the first anaerobic treatment chamber 11 corresponds to a sedimentation separation chamber, and the second anaerobic treatment chamber 12 supplies air from a diffuser in the contact aeration chamber. It is configured to be changed to stop, and the disinfectant is removed from the disinfecting tank 6 for use.

  The merger processing apparatus 20 includes a second inlet 21, a biological filtration tank 22, a treated water storage tank 23, a disinfection tank 24, and a second outlet 25 from the upstream side.

  The biological filtration tank 22 includes a biological reaction unit 26 and a filtration unit 27 therein, and aeration members 28 and 29 are installed at the lower portions of the biological reaction unit 26 and the filtration unit 27, respectively. The air diffuser 28 disposed at the lower part of the biological reaction unit 26 is used for performing the aerobic treatment and always discharges air bubbles. However, the air diffuser provided at the lower part of the filter unit 27 is used. Since 29 is used to peel the biofilm, the air is discharged once a day for about 1 to 30 minutes. The bottom of the biological filtration tank 22 and / or the treated water storage tank 23 is installed so that the lower end of the washing drainage extraction pipe 30 is opened, and the biological film that is separated and settled is pulled out by the transfer pump 31 and the washing drainage transfer pipe 32 is removed. To be returned to the first anaerobic treatment chamber 11.

  A disinfectant container 33 is installed in the disinfection tank 24.

  The first outlet 10 of the single processing septic tank 1 and the second inlet 21 of the merger processing apparatus 20 are connected by an advection pipe 34 that is a connecting pipe.

  Here, the flow of sewage (treated water) will be described. Human waste, kitchen wastewater, bathroom wastewater (hereinafter collectively referred to as wastewater a), and laundry wastewater discharged from the home flow into the first anaerobic treatment chamber 11 from the first inlet 2 for solid-liquid separation and anaerobic treatment. In the second anaerobic process 12 configured by stopping the air supply, the solid-liquid separation and the anaerobic process are performed again. Then, the waste water a and the treated waste water that has passed through the second anaerobic treatment 12 are subjected to solid separation in the sedimentation chamber 5, sterilized and sterilized in the disinfection tank 6, and then passed through the first outlet 10. It flows out to the advection pipe 34.

  The treated water of the waste water a and the washing waste water is transferred from the second inlet 21 to the combined treatment apparatus 20 through the transfer pipe 34. The waste water a and the waste water discharged into the combined treatment apparatus 20 are aerobically treated with the air bubbles discharged from the diffuser 28 in the biological reaction section 26, and then the solid material is removed in the filtration section 27. And advancing to the treated water storage tank 23. Then, after flowing into the disinfection tank 24 from the treated water storage tank 23 and disinfecting and sterilizing, it is discharged from the second outlet 25.

  If the filtration unit 27 continuously performs filtration, the biofilm accumulates thickly on the carrier and closes. Therefore, air bubbles are periodically discharged from the air diffuser 29 to stir the carrier, and the biofilm is removed from the carrier. To peel off. The peeled biofilm is extracted by the cleaning drainage pipe 30 by operating the transfer pump 31 and returned to the first anaerobic treatment chamber 11 via the cleaning drainage transfer pipe 32.

  According to such a merged treatment septic tank, since the capacity of the anaerobic treatment tank is increased, it is possible to purify by combining urine, kitchen drainage, surface drainage, and laundry drainage.

  2nd Embodiment FIG. 2: is a figure which shows the plane and piping of a merger processing septic tank in the 2nd Embodiment of this invention. In this embodiment, a bathtub drain pipe 41 is connected in the middle of the advection pipe 34 that connects the first outlet 10 and the second inlet 21 of the combined treatment septic tank in the first embodiment shown in FIG. It is. Since other configurations are the same as those of the first embodiment, the same reference numerals are given and redundant description is omitted.

  The advection pipe 34 is connected to the bathtub drainage pipe 41 in the middle thereof to transfer the treated water from the single treatment septic tank 1 to the merger processing apparatus 20 and to merge the bathtub drainage flowing in from the bathtub drainage pipe 41. Function to flow into.

  And the merger processing apparatus 20 purifies and discharges the treated water and bathtub drainage which flow out from the independent processing septic tank 1. In addition, since the bathtub drainage with little dirt does not pass through the anaerobic treatment chambers 11 and 12, the anaerobic treatment function of polluted urine, kitchen drainage, wash drainage and laundry drainage with much dirt does not deteriorate.

According to such a combined treatment septic tank, the bathtub drainage can also be combined and purified.

  3rd Embodiment FIG. 3: is a figure which shows the plane and piping of a merged process septic tank in the 3rd Embodiment of this invention. This embodiment has a configuration in which a washing drainage pipe 42 is connected in the middle of a bathtub drainage pipe 41 in the merged processing septic tank of the second embodiment shown in FIG. Since other configurations are the same as those of the second embodiment, the same reference numerals are given and redundant description is omitted.

  The laundry drainage pipe 42 is configured such that the laundry wastewater that has flowed in as the drainage a can be processed by being poured separately from the drainage a, and the laundry drainage flows into the bathtub drainage pipe 41. It is the structure to make.

  According to such a combined treatment septic tank, washing wastewater with less dirt does not pass through the anaerobic treatment chambers 11 and 12, so that the anaerobic treatment function of wasteful urine, kitchen wastewater, and wash drainage can be further enhanced. .

  4th Embodiment FIG. 4: is a figure which shows the plane and piping of a merger processing septic tank in the 4th Embodiment of this invention. In this embodiment, a flow rate adjusting valve 43 is connected to the middle of the bathtub drain pipe 41 of the merged processing septic tank in the first embodiment shown in FIG. Since other configurations are the same as those of the first embodiment, the same reference numerals are given and redundant description is omitted.

  The bathtub drainage becomes a large amount of drainage of about 200 to 300 liters in several minutes. For this reason, if the capacity of the biological filtration tank 22 of the combined treatment apparatus 20 cannot be secured sufficiently large, treated water that is insufficiently processed may be discharged. Therefore, the flow rate adjustment valve 43 installed in the middle of the bathtub drainage pipe 41 limits the amount of bathtub drainage flowing through the bathtub drainage pipe 41 and the amount of water flowing into the biological filtration tank 22 is stable in the processing of the biological filtration tank 22. Can be adjusted to be within a range that can be maintained.

  5th Embodiment FIG. 5: is a figure which shows the plane and piping of a merged process septic tank in the 5th Embodiment of this invention. This embodiment has a configuration in which a flow rate adjustment valve 44 is connected in the middle of a bathtub drainage pipe 41 in the merged processing septic tank of the third embodiment shown in FIG. Since other configurations are the same as those of the third embodiment, the same reference numerals are given and redundant descriptions are omitted.

  The flow rate adjustment valve 44 is preferably provided upstream of the connection position of the laundry drainage pipe 42 in the bathtub drainage pipe 41 so that the laundry drainage does not pass through the flow rate adjustment valve 44.

  According to such a combined treatment septic tank, the flow rate adjusting valve 44 installed in the middle of the bathtub drainage pipe 41 limits the amount of bathtub drainage flowing through the bathtub drainage pipe 41 without restricting the washing drainage with a small drainage amount. The amount of water flowing into the biological filtration tank 22 can be adjusted to be within a range in which the stability of the treatment of the biological filtration tank 22 can be maintained.

  6th Embodiment FIG. 6: is a figure which shows the vertical side surface and piping of the merger processing septic tank in the 6th Embodiment of this invention. In this embodiment, a flow rate adjusting tank 45 is integrally provided in the merger processing apparatus 20 in the merged processing septic tank of the first embodiment shown in FIG. 1, and the treated water in the flow rate adjusting tank 45 is pumped 46. Therefore, the advection to the biological filtration tank 22 is performed. Since other configurations are the same as those of the first embodiment, the same reference numerals are given and redundant description is omitted.

  In this embodiment, the treated water of the waste water a and the washing waste water or the bathtub waste water is once stored in the flow rate adjusting tank 45, and biological filtration is performed with an appropriate amount of water using the pump 46 from the flow rate adjusting tank 45. Advection to the tank 22.

  According to such a combined treatment septic tank, stable purification treatment can be performed without restricting drainage by the flow rate adjustment valve.

  7th Embodiment FIG. 7: is a figure which shows the vertical side surface and piping of the merger processing septic tank in the 7th Embodiment of this invention. In this embodiment, the flow rate adjustment tank provided in the merger processing apparatus in the merger processing septic tank of the sixth embodiment shown in FIG. 6 is configured separately. Other configurations are the same as those of the sixth embodiment, and thus the same reference numerals are given and redundant description is omitted.

  In this embodiment, the flow rate adjusting tank 47 is formed separately from the merger processing apparatus 20 and is embedded in the ground, and the advection pipe 34 is connected to the third inlet 48 to treat the treated water. Inflow. Then, a pipe connection is made so that the treated water stored in the flow rate adjusting tank 47 is transferred by the pump 46 to the second inlet 21 of the merger processing apparatus 20 via the transfer pipe 49.

  According to such a merger treatment septic tank, the merger treatment apparatus 20 can be installed on the ground, and construction costs can be reduced.

    Other Embodiments When a septic tank is newly established, such a merged septic tank can be merged by installing a new single septic tank alone or by combining this new existing septic tank with a combined processing unit. Since a processing septic tank can be constructed and newly installed, the production efficiency of the single processing septic tank and the merged processing septic tank can be increased.

A combined treatment septic tank showing a first form state of the present invention, showing the figure, the (b) is a vertical sectional side and pipe showing the (a) is a plan and piping. It is a figure which shows the plane and piping of the merger processing septic tank in the 2nd Embodiment of this invention. It is a figure which shows the plane and piping of the merger processing septic tank in the 3rd Embodiment of this invention. It is a figure which shows the plane and piping of the merger processing septic tank in the 4th Embodiment of this invention. It is a figure which shows the plane and piping of the merger processing septic tank in the 5th Embodiment of this invention. It is a figure which shows the vertical side surface and piping of the merger processing septic tank in the 6th Embodiment of this invention. It is a figure which shows the vertical side surface and piping of the merger processing septic tank in the 7th Embodiment of this invention. It is a vertical side view of the single processing septic tank of a separation contact aeration system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Single processing septic tank, 5 ... Sedimentation chamber, 6 ... Disinfection tank, 11 ... 1st anaerobic processing chamber, 12 ... 2nd anaerobic processing chamber, 20 ... Merger processing apparatus, 22 ... Biofiltration tank, 23 ... Treated water storage Tank, 24 ... Disinfection tank, 26 ... Biological reaction part, 27 ... Filtration part, 41 ... Bath drain pipe, 42 ... Washing drain pipe, 43, 44 ... Flow control valve, 45, 47 ... Flow control tank.

Claims (3)

The first anaerobic treatment section and the contact material installed in the contact aeration chamber of the existing single treatment septic tank are replaced with an irregularly filled anaerobic filter medium, and the waste water from the first anaerobic treatment section is separated into solid and liquid again. A single treatment septic tank that is changed to a second anaerobic treatment part that performs anaerobic treatment, a merger treatment apparatus, and a connection pipe that connects the outlet of the single treatment septic tank and the inlet of the merger treatment apparatus; Connecting a pipe for inflowing urine, kitchen drainage, wash drainage and laundry drainage to the inlet of the single treatment septic tank,
The combined treatment apparatus comprises a biological filtration tank and a disinfection tank,
A bathtub drain pipe for draining the bathtub drainage is connected to the connection pipe connecting the outlet of the single processing septic tank and the inlet of the merger processing apparatus, or directly connected to the disinfection tank of the merger processing apparatus ,
A merged treatment septic tank, comprising a wash drainage transfer pipe for extracting washing wastewater from the biological filtration tank of the merged treatment apparatus and returning it to the first anaerobic treatment section.   The combined treatment septic tank according to claim 1, wherein the bathtub drain pipe is provided with a flow rate adjusting valve.   3. The merger processing septic tank according to claim 1, wherein the merger processing apparatus includes a flow rate adjusting tank.

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