JP4346739B2 - Air diffuser / support member, air diffuser, aerobic filter bed tank and septic tank - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air diffuser / support member, an air diffuser, an aerobic filter bed tank, and a septic tank, which are particularly suitably used for treating combined wastewater discharged from households and the like and wastewater from daily life.
[0002]
[Prior art]
FIG. 4 shows a conventional typical septic tank provided with an aerobic filter bed tank. 4A is a schematic plan view of the septic tank as seen through the upper wall, and FIG. 4B is a schematic cross-sectional view taken along the AA plane of FIG. The septic tank 1 is partitioned by the partition plates 2, 3, 4, and 5, and includes a plurality of tanks. The plurality of tanks are provided with an anaerobic filter bed tank 8, an anaerobic filter bed tank 9, an aerobic filter bed tank 11, a treated water tank 6, and a disinfection tank 7. The aerobic filter bed tank 11 is filled with a filter medium (also referred to as a contact material) to form a filter bed 12.
[0003]
FIG. 5 is a cutaway perspective view in the vicinity of the bottom of the aerobic filter bed tank 11 of FIG. The aerobic filter bed tank 11 includes a filter bed 12 formed by filling a filter medium (filter medium is not shown) and a filter bed receiving member 13 that supports the filter bed 12 from below. The aerobic filter bed tank 11 is provided with a diffuser tube 14. The filter bed receiving member 13 is supported from below by the diffuser tube 14, and the diffuser tube 14 is supported from below by the support pipe 15. An air introduction pipe 16 connected to the blower 10 is connected to the air diffusion pipe 14.
[0004]
The diffuser pipe 14 is formed by interposing a plurality of T-shaped joints in the pipe line of the diffuser pipe 14. A support pipe 15 is connected to the connecting portion in the vertical direction of the T-shaped joint. The air diffuser 14 is positioned above the bottom surface of the aerobic filter bed tank 11 and below the filter bed receiving member 13 by the support pipe 15 and supports the filter bed receiving member 13 from below.
[0005]
In the aerobic filter bed tank 11, the wastewater is supplied from the upper side of the filter bed 12 as a downward flow, or is supplied as an upward flow from the lower side of the filter bed 12 and passes through the filter bed 12. Treated by aerobic microorganisms adhering to the floor 12.
[0006]
[Problems to be solved by the invention]
The septic tank is used for a long period of time, and the air diffuser provided therein is easily deformed by the load of the filter bed applied to the air diffuser as it is used. When the air diffuser is deformed so as to have an uneven horizontal height, a water head difference occurs in the air discharge hole provided in the air diffuser, and air is not discharged from the air discharge hole of the entire air diffuser. In this state, since air is not supplied to the entire filter bed, the processing performance is degraded.
[0007]
The present invention is intended to solve such a problem, and the diffuser member can be easily installed horizontally, and the diffuser / support member, diffuser device, It aims at providing an air filter bed tank and a septic tank.
[0008]
[Means for Solving the Problems]
The present invention relates to the following air diffuser / support member, air diffuser, aerobic filter bed tank and septic tank.
(1) An air diffuser / support member in which an air diffuser 18 disposed below a filter bed is supported from below by a cylindrical or rod-shaped support member 19 so that the support member 19 directly supports the filter bed.
(2) The air diffuser / support member according to (1) above, wherein the air diffuser member 18 penetrates the support member 19 in the horizontal direction.
(3) A diffuser having a blower 10, an air introduction pipe 16 connected to the blower 10, a diffuser member 18 connected to the air introduction pipe 16, and a support member 19 that supports the diffuser member 18. The air diffuser, wherein the air diffuser 18 and the support member 19 are the air diffuser / support member according to (1) or (2).
(4) An aerobic filter bed tank equipped with the air diffusing device 17 described in (3) above.
(5) A septic tank comprising the aerobic filter bed tank 11 according to (4) above.
[0009]
[Action]
In the air diffuser / support member and the air diffuser 17 according to the present invention, since the support member 19 directly supports the filter bed 12, the load of the filter bed 12 is not directly applied to the air diffuser member 18. Further, the air diffuser 18 is held horizontally by passing through the body portion of the support member 19 in the horizontal direction and supporting it by the support member 19.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be specifically described below with reference to the drawings.
FIG. 1 is a perspective view showing an air diffuser / support member and an air diffuser according to an embodiment of the present invention.
[0011]
The air diffuser 18 and the support member 19 disposed below the filter bed are connected so that the support member 19 directly supports the filter bed. The upper end of the support member 19 is positioned above the diffuser member 18 so that the support member 19 comes into contact with the bottom of the filter bed and directly supports the filter bed.
[0012]
The air diffuser 17 supports a blower (also called a blower) 10, an air introduction pipe 16 connected to the blower 10, an air diffusion member 18 connected to the air introduction pipe 16, and the air diffusion member 18. The support member 19 is constituted.
[0013]
The air diffuser 18 is a tubular member that is arranged in a loop shape in the horizontal direction and that allows air to pass therethrough. A plurality of air discharge holes 20 are provided at equal intervals in the air diffuser 18 arranged in a loop. The air diffuser 18 is formed in a loop shape with a T-shaped joint interposed between the air diffuser 18 and the air introduction pipe 16 is connected to the T-shaped joint. Six support members 19 are arranged upright at substantially equal intervals, and a cylindrical member is used. The cylindrical body portion of the support member 19 is provided with a hole penetrating in the horizontal direction slightly above the center portion in the vertical direction. The air diffusing member 18 is formed in a loop shape by penetrating through a hole provided in the support member 19, and is arranged horizontally.
[0014]
The air diffuser 17 will be further described in detail.
The blower 10 supplies air to the filter bed of the aerobic filter bed tank, and by supplying this air, the activity of aerobic microorganisms attached to the filter bed can be enhanced.
[0015]
The blower 10 and the air introduction pipe 16 are connected by inserting the end of the air introduction pipe 16 into the air discharge port provided in the blower 10 and fastening with a fixing member, or by inserting or adhering with a screw. Can do. The material of the air introduction pipe 16 may be made of resin or metal, but is preferably resinous from the viewpoint of workability for connection and corrosiveness.
[0016]
The air diffuser 18 is connected to the air introduction pipe 16 and supported by the support member 19. The diffuser member 18 and the air introduction pipe 16 can be connected using a screwed T-shaped joint made of male or female or a T-shaped joint by bonding. The material of the air diffusing member 18 may be made of resin or metal, but is preferably resinous from the viewpoint of workability for connection and corrosiveness.
[0017]
Moreover, it is preferable that the air diffusion member 18 is tubular. The air diffuser 18 may be arranged in a straight line or a curved line by sealing both ends of the air diffuser 18, but in order to distribute the air discharged from the air discharge holes 20 over the entire filter bed, a loop is formed. It is preferable to arrange in a shape.
[0018]
A plurality of air discharge holes 20 are provided in the air diffuser 18 with an appropriate hole diameter and pitch. And the dimension in the cross section of the air diffusion member 18, the hole diameter of the air discharge hole 20, and a pitch are determined by the air quantity to discharge. The plurality of air discharge holes 20 can be provided in the upper, lower, or side in the cross section of the air diffuser 18, but preferably in a predetermined position such as only the upper position, only the lower position, or only the lateral position. It is. Thus, by providing the air discharge holes 20 at predetermined positions, the water heads applied to the air discharge holes 20 are the same, so that air can be discharged from the air discharge holes 20.
[0019]
The support member 19 supports the air diffuser 18 horizontally and keeps the horizontal for a long time. By supporting the air diffuser 18 horizontally by the support member 19, air can be discharged from any of the air discharge holes 20 provided in the air diffuser 18.
[0020]
As the support member 19, a cylindrical or rod-like member such as a circle, an ellipse, a quadrangle, or a triangle in plan view can be preferably used. Moreover, it is preferable that the upper end and lower end of the support member 19 are planar. The material of the support member 19 may be made of resin or metal, but is preferably resinous from the viewpoints of handleability and corrosivity.
[0021]
In order to allow the air diffuser 18 to penetrate the body portion of the support member 19 in the horizontal direction and support the support member 19, a hole is provided in the body portion of the support member 19 in the horizontal direction. The size of the hole and the position in the height direction where the hole is provided are usually the same for all the support members 19. If this hole is too large, rattling of the diffuser member 18 may occur, so that the hole is preferably large enough to allow the diffuser member 18 to pass through. By disposing the air diffuser 18 through the holes provided in the horizontal direction, the air diffuser 18 can be supported horizontally by the support member 19. Moreover, it can prevent that the diffuser 18 remove | deviates from the supporting member 19 by making it penetrate.
[0022]
The height of the support member 19 in the standing direction is preferably 100 to 500 mm, and the pitch for holding the air diffuser 18 is preferably 400 to 1,000 mm.
[0023]
The air diffuser 18 provided through the support member 19 preferably moves in the horizontal (lateral) direction so as not to be displaced. For example, the support member 19 and the air diffuser 18 are fixed by bonding or welding. Alternatively, the air diffuser 18 may be provided with a stopper or the like so as not to move.
[0024]
FIG. 2 is a broken perspective view of the vicinity of the bottom of the aerobic filter bed tank 11 according to an example of the present invention. The aerobic filter bed tank 11 includes a filter bed 12 formed by filling a filter medium. The filter bed 12 is provided with a filter bed receiving member 13 that supports the filter bed 12 itself from below and is disposed horizontally. A diffuser member 18 and a support member 19 are disposed below the filter bed 12. The air diffuser 17 includes the blower 10, the air introduction pipe 16, the air diffuser 18, and the support member 19 as described above.
[0025]
The filter bed receiving member 13 is supported in contact with the support member 19, and supports the filter bed 12 by the filter bed receiving member 13. The filter bed receiving member 13 receives the filter medium forming the filter bed 12 and allows water to pass therethrough. The filter bed receiving member 13 may be a plate or net having a hole or hole that allows water to pass through without passing through the filter medium. The material of the filter bed receiving member 13 can be made of resin or metal.
[0026]
The filter medium forming the filter bed 12 includes a wide variety of plate-like, corrugated plate-like, mesh-like plate-like, loofah-like plate-like, mesh-like cylindrical, skeleton-spherical, small-cylindrical, foam-like, granular, etc. The shape can be used. As the material of the filter medium, plastics such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, and polyurethane, and inorganic materials such as ceramics can be used. Furthermore, as an organic filter medium, granular materials such as anthracite (a kind of coal) and activated carbon, small lumps, and the like can be used.
[0027]
FIG. 3 is a schematic cross-sectional view of the septic tank 1 according to an example of the present invention. The septic tank 1 is arranged in the order of an anaerobic filter bed tank 8, an anaerobic filter bed tank 9, an aerobic filter bed tank 11, a treated water tank 6, and a disinfection tank 7 from the upstream side. In addition, the aerobic filter bed tank 11 has shown the case where a part of outer wall of the septic tank 1 and the partition members 23 and 24 are formed.
[0028]
The aerobic filter bed tank 11 includes an air diffuser 17 including a blower 10, an air introduction pipe 16, an air diffuser 18, and a support member 19. The aerobic filter bed tank 11 is provided with a filter bed receiving member 13 below the filter bed 12. Although a filter bed presser member 21 is provided on the filter bed 12, the filter bed presser member 21 can be removed when the specific gravity of the filter medium is larger than 1.
[0029]
In order to wash the filter bed 12, the aerobic filter bed tank 11 can be provided with another cleaning air diffuser, a cleaning drainage discharge member, a cleaning drainage transfer member connected to the cleaning drainage discharge member, and the like ( (All are not shown).
[0030]
Further, the aerobic filter bed tank 11 can be produced separately from the septic tank 1 and incorporated into the septic tank 1. Further, the aerobic filter bed tank 11 can be provided in a polygonal shape, a circular shape, an elliptical shape, or the like in addition to a square shape in a plan view.
[0031]
In FIG. 3, although the anaerobic filter bed tank 8 and the anaerobic filter bed tank 9 are provided in the septic tank 1, only the precipitation separation tank may be provided, and both the precipitation separation tank and the anaerobic filter bed tank are provided. Also good. Moreover, although the treated water tank 6 is provided in the back | latter stage of the aerobic filter bed tank 11, it may replace with this and may be provided with the sedimentation tank. The septic tank 1 is usually provided with a manhole and a manhole cover 22 that closes the manhole so that the inside of each tank can be inspected from above.
[0032]
In the septic tank 1, the waste water is treated as follows. First, the wastewater enters the upper part of the anaerobic filter bed tank 8 from the inflow port and flows downward to the lower part of the tank. At this time, the anaerobic filter bed tank 8 captures solid matter while passing through the anaerobic filter bed 25 and anaerobic. Organic matter is decomposed by anaerobic microorganisms adhering to the filter bed 25, and solid matter is precipitated near the bottom of the tank. The water treated in the anaerobic filter bed 8 passes through the advection section from below the anaerobic filter bed 25, enters the upper part of the anaerobic filter bed tank 9, and flows downward to the lower part of the tank. At this time, the anaerobic filter bed tank In 9, while passing through the anaerobic filter bed 26, the solid matter is captured, the organic matter is decomposed by the anaerobic microorganisms attached to the anaerobic filter bed 26, and the solid matter is precipitated near the lower part of the tank.
[0033]
The water treated in the anaerobic filter bed tank 9 passes through the advection section from below the anaerobic filter bed 26 and enters the upper part of the aerobic filter bed tank 11. In the aerobic filter bed tank 11, air supplied from the blower 10 passes through the air introduction pipe 16 and is discharged from the air discharge holes 20 of the diffuser member 18 so as to maintain an aerobic state. The water flows downward toward the bottom of the tank, but at this time, the organic matter is decomposed by trapping solids and aerobic microorganisms adhering to the filter bed 12 while passing through the filter bed 12. At this time, in the aerobic filter bed 11, since the air diffuser 18 is held horizontally by the support member 19, air can be discharged from each air discharge hole 20. Thereby, since air is supplied to the filter bed 12 evenly, aerobic biological treatment can be performed satisfactorily.
[0034]
The water treated in the aerobic filter bed tank 11 enters the treated water tank 6 as treated water, and reaches a disinfection tank 7 provided above the treated water tank 6. The treated water sterilized in the sterilization tank 7 is discharged out of the septic tank 1.
[0035]
【The invention's effect】
According to the air diffuser / support member of claim 1 or claim 2 or the air diffuser of claim 3, since the air diffuser member can be held horizontally, air can be uniformly discharged from the air diffuser member. it can. In addition, since the support member bears the load of the filter bed, the diffuser member is not easily deformed over a long period of time.
According to the aerobic filter bed tank of claim 4 or the septic tank of claim 5, the diffuser member of the diffuser can be supported horizontally over a long period of time, and the combined drainage discharged from homes and the like can be stabilized. Can be processed.
[Brief description of the drawings]
FIG. 1 is a perspective view of an air diffuser / support member and an air diffuser according to an embodiment of the present invention.
FIG. 2 is a cutaway perspective view near the bottom of an aerobic filter bed according to an embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of a septic tank according to one embodiment of the present invention.
4A and 4B show a conventional septic tank, in which FIG. 4A is a schematic plan view seen through an upper wall, and FIG.
FIG. 5 is a cutaway perspective view of the vicinity of the bottom of the aerobic filter bed tank in FIG.
1. Septic tank 2. Partition plate Partition plate 4. Partition plate 5. Partition plate6. Treated water tank 7. Disinfection tank 8. Anaerobic filter bed tank 9. Anaerobic filter bed 10. Blower (blower) 11. Aerobic filter bed 12. Filter bed 13. Filter bed receiving member 14. Air diffuser 15. Support pipe 16. Air introduction pipe 17. Air diffuser 18. Air diffuser 19. Support member 20. Air discharge hole 21. Filter bed presser member 22. Manhole cover 23. Partition member 24. Partition member 25. Anaerobic filter bed 26. Anaerobic filter bed

Claims (4)

An air diffuser / support member in which a loop-like air diffuser disposed below the filter bed is supported by a cylindrical or rod-like support member, and the support member directly supports the filter bed from below,
The cylindrical or bar-like support members are erected so that the center line thereof is vertical, and a plurality of the support members are arranged below the filter bed, and the air diffuser members are diffused and supported by penetrating the support members in the horizontal direction. Element.   An air diffuser having a blower, an air introduction pipe connected to the blower, an air diffusion member connected to the air introduction pipe, and a support member that supports the air diffusion member, the air diffusion member The aeration apparatus according to claim 1, wherein the aeration member is the aeration / support member according to claim 1.   An aerobic filter bed equipped with the air diffusing device according to claim 2.   A septic tank provided with the aerobic filter bed tank of Claim 3.

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