JP2607118Y2 - Porous contact filter media - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous contact filter medium which can constitute the inner surface of the side wall of a sedimentation basin or the side wall of an overflow weir in a sewage treatment plant.

[0002]

2. Description of the Related Art In recent years, the quality of water in rivers, lakes and marshes has been extremely deteriorated, and has become a serious problem. At the same time, sewage treatment facilities that purify this are being devised to deal with this.

[0003]

As a solution to this problem, in the case of a sedimentation basin in a sewage treatment plant, it is conceivable to form a porous contact filter on the inner surface of the wall to form a nest of microorganisms. In this case, if the porous contact filter material is attached to the entire inner surface of the wall, it becomes very large and cannot be easily realized.

[0004]

In order to solve such a problem, a device according to the present invention is characterized in that a plurality of the plurality of holes are arranged so as to be planar to form a flow path facing the flow of sewage. Material having a through-hole that becomes a series of holes when two or more are combined, wherein the through-hole is
In addition to being a through hole for a fastener for fastening and fixing the porous materials to each other, the hole can also be used as a through hole for passing air and bacteria. The invention according to claim 2 is characterized in that one of the two corresponding faces of the hexahedron is that face.
With a projection to cover the entire surface and the other to cover the entire surface
A hexahedral block with a recess that fits into the protrusion
The plurality of protrusions and the recesses fit in
Smears can be created by combining
A porous contact filter that can form a flow path facing the flow of water.
Therefore , the protrusion and the recess are formed in a quadrangular pyramid shape .

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail. FIG. 1 shows an embodiment of the present invention. In this embodiment, the inner layer 21a is formed on the side wall 21 of the integrally formed sedimentation basin.
Is formed by stacking a large number (plural) of hexahedral porous contact filter media (blocks) 28 vertically and horizontally to form a planar lining type. The porous contact filter material 28 is a ceramic material (chemical component (% by weight): S
iO ₃ <70 Al ₂ O ₃ > 20 Fe ₂ O ₃ <4 C
aO <2MgO <0.5) to form a square plate or block.

A plurality of through holes 29 are formed in the porous contact filter media 28. The through holes 29 are formed in a series as shown in the drawing, and a pair of the porous contact filter media 28 are provided at the same position. The through-hole 29 is open, and can be used as a through-hole of a bolt for connecting the porous contact filter media 28 to each other, and also as a supply path for air and bacteria.

FIG. 2 shows another embodiment, in which one of the porous contact filter media 36, which is a hexahedral block, is shown. This porous contact filter material 36 is used for the main body of an overflow weir having a U-shaped cross section and a V notch plate as shown in FIG. One (upper) of a pair of corresponding surfaces among the surfaces
A projection 34 having a quadrangular pyramid shape and a concave portion 35 having a quadrangular pyramid shape are formed on the other surface so as to cover the entire surface.
It is formed. The protrusion 34 is fitted into the recess of the porous contact filter material 36 above it, and the recess 35 shown is fitted into the protrusion 34 of the porous contact filter material 36 therebelow, so as to be mutually fitted up and down. It can be stacked so that it does not deviate in the closed state.

FIG. 3 et seq. Show an additional example.
Is a sand basin 1 constructed as the first stage of the sewage treatment facility.
Is an example of This equipment is designed so that trash in the sewage flowing from the sewage pipe 2 is removed by the screen 3, sediment is submerged and removed by the sand pump 4, and then sent to the next distribution tank (not shown) by the main pump 5. Has become. 6 is a gate,
7 is a hopper.

In this sand basin 1, a plurality of water channels 8.
Are provided in parallel. Many rod-shaped ones are inserted into the water passages 8. This is the water purification device 1
0. This device 10 has a tubular shape and a through hole 11 on its outer periphery.
Are formed, and a number of contact filter media 12 such as ceramics are accommodated therein, and two pipes 13 and 14 are inserted into the filter media 12 to supply air and bacteria. ing. The contact filter medium 12 is 1
It can be a single block or granular.

In the contact filter media 12, a breeding bed for the supplied bacteria is formed. The breeding has become more active with the supply of air. When the sewage flows there, organic substances and the like in the sewage are decomposed. As bacteria,
For example, Hypolka (trade name: Shikoku Chemical Industry Co., Ltd.)
Manufactured).

Although the water purification device 10 is a round pipe, it may be formed as a square tube as shown in FIG. Further, the water purification device 10 may be supported so as to be able to escape by swinging without being fixed and hanging down. Further, as shown in FIG.
An aeration tank 70 provided with an aeration pipe 71 may be provided with the same 72 as the water purification device.

FIG. 6 shows an embodiment for the first or final settling basin 20. The sedimentation basin 20 includes a main body 21 made of concrete and a rectifying plate 22 installed at a place where the wastewater flows. A driving source 23 drives a chain 24 in the pond to guide scum on the water surface to the schema 25.

As shown in FIGS. 7 and 8, the current plate 22 is made of a ceramic material (chemical component (% by weight): Si
O ₃ <70 Al ₂ O ₃ > 20 Fe ₂ O ₃ <4 Ca
O <2 MgO <0.5) in the shape of a square plate. This is a contact filter material, which is configured such that a pipe 26 for supplying air and bacteria is connected to the filter material 22 and that a supply path 27 is formed in a meandering shape.

From the supply passage 27, air and bacteria can be supplied into the contact filter medium 22 through the through holes 28. The straightening plate may be configured by sandwiching the contact filter material between the front and rear plates.

On the other hand, as shown in FIG. 9 (enlarged portion A in FIG. 6), only the inner layer 21a of the main body 21 of the settling basin may be made of a ceramic material. In this case, a lining type or an integral crimping type can be used. Also, body 2
1 can be formed entirely of a ceramic material.
In this case, reinforcement may be added.

FIG. 10 shows an embodiment of the overflow weir 30. The overflow weir 30 includes a main body 31 and a V notch plate 3.
2, the entire body 31 is formed of a ceramic material to form a contact filter. Same body 3
1 is composed of a bottom block 31a and a standing block 31b and is assembled. And blocks 31a and 31
A supply path 33 for air and bacteria is formed in b.

In FIG. 11, a contact filter 38 made of a ceramic material is provided on the inner surface of a main body 37 in a lined manner. 39 is a supply path. FIG. 12 shows a configuration in which the contact filter medium 40 is formed by a pressure bonding method. 41 is a supply path. Of course, the contact filter material may be configured in a sandwich manner. Note that the V notch plate 32 itself may be used as the contact filter material. In this case, a ceramic material may be sprayed only on the surface.

FIG. 13 shows an additional embodiment. 5
Reference numeral 0 denotes a sedimentation basin, and a scraper 51 is reciprocally driven at the bottom thereof. For this purpose, a monorail type gantry 52 is protruded from the bottom, and a guide 53 is fixed thereon. An operating body 55 is provided along the guide 53 so as to be rolled by rollers 54. The operating body 55 is provided with a hollow, quadrangular cylindrical housing 56 thereon, and the housing 56 protrudes above the water surface. In the housing 56, a transmission mechanism is configured in addition to the drive source, and drives a pinion 58 that meshes with a rack 57 provided on the side of the guide 53. Reference numeral 59 denotes a distribution line.

In such a case, on both sides of the housing 56, contact filter media 61 which reciprocate slightly below the water surface 60 are attached. Since the contact filter medium 61 allows the wastewater in the sedimentation basin to flow along with the movement of the scraping plate 51, the wastewater is purified.

[0020]

According to the first aspect of the present invention, there is provided a porous contact filter medium which is arranged in a planar shape by combining a plurality of them and which can form a flow path facing the flow of sewage. It has a through-hole that becomes a series of holes when combined, the through-hole is a through-hole for a fastener for fastening and fixing the porous materials, and for passing air and bacteria. Since the through hole can also be used, it is possible to provide not only a porous contact filter medium having a through hole but also capable of being reliably constructed with a fastener, but also providing the air and bacteria supply path as it is through the through hole. Thus, it is possible to provide a porous contact filter having an extremely simple structure without providing a separate hole. The invention according to claim 2 is characterized in that one of the two corresponding faces of the hexahedron is that face.
With a projection to cover the entire surface and the other to cover the entire surface
A hexahedral block with a recess that fits into the protrusion
The plurality of protrusions and the recesses fit in
Smears can be created by combining
A porous contact filter that can form a flow path facing the flow of water.
Thus, the protrusion and the recess are formed in a quadrangular pyramid shape.
So porous contact that is hard to be shifted from each other
Filter media can be provided. In particular, porous contact media
Fields used to form channels in an array of elevations
Construction is very easy and efficient because the surface condition is easy to form
In addition to being able to form a planar shape as well as
In a mere protrusion and dent, they may fall off each other due to an earthquake, etc.
The whole surface is easily collapsed, but the protrusions and dents are square pyramid shaped
And there is an advantage that such a gap does not occur at all
The projections and dents are provided over the entire surface,
Makes it harder to break. Also, when transporting
Hard to cause load collapse in both vertical and horizontal directions
It is.

[Brief description of the drawings]

FIG. 1 is a sectional perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a porous contact filter medium showing another embodiment.

FIG. 3 is a longitudinal sectional view of a sand basin showing an additional example.

FIG. 4 is an enlarged perspective view of the contact filter medium of FIG. 3;

FIG. 5 is a cross-sectional view showing a water purification device having a rectangular cylindrical shape.

FIG. 6 is a side sectional view showing an outline of a sedimentation pond.

FIG. 7 is a front view showing an example in which the current plate is a water purification device.

FIG. 8 is an enlarged sectional view of a main part thereof.

9 is an enlarged view of a portion A in FIG. 6;

FIG. 10 is a perspective view showing an example in which the overflow weir is a water purification device.

FIG. 11 is a sectional view showing another example of an overflow weir.

FIG. 12 is a sectional view showing another example of the overflow weir.

FIG. 13 is a perspective view showing an additional example in which a scraping device is provided with a contact filter material.

[Explanation of symbols]

 21a Inner layer 28 36 Porous contact filter medium 29 Through hole (bolt through hole) 34 Projection 35 Depression

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-64-15198 (JP, A) JP-A-58-51987 (JP, A) JP-A-3-258397 (JP, A) JP-A 61-1986 230787 (JP, A) JP-A-1-249190 (JP, A) JP-A-62-272801 (JP, A) JP-A-4-33999 (JP, U) JP-A-3-109690 (JP, U) Japanese Utility Model No. 2-136103 (JP, U) Japanese Utility Model Showa 61-84702 (JP, U)

Claims (2)

(57) [Scope of request for utility model registration] 1. A porous contact filter medium which is arranged so as to be planar by combining a plurality thereof and is capable of forming a flow path facing a flow of sewage. It has a through hole that becomes a hole, and the through hole is a through hole for a fastener for fastening and fixing the porous materials to each other, and can also be used as a through hole for passing air and bacteria. Porous contact media. 2. One of two corresponding surfaces of a hexahedron.
One has a projection to cover the entire surface and the other is the entire surface
Hexagonal blower with a recess that fits into the projection to extend over
The protrusion and the dent fit in each other in the
They are arranged in a plane by combining a plurality of them.
To form a flow path facing the flow of wastewater
A filter material, wherein the protrusions and recesses are formed in a quadrangular pyramid shape;
A porous contact filter material characterized by being made.