JPH04166293A - Filtering device - Google Patents

Abstract

PURPOSE:To remarkably reduce the generation of sludge by providing passage space between a bottom plate and the lower part of the filter medium layer and interrupting relevant passage with partitioning plate to the lower part of at least one or more the filter medium layers, thereby prohibiting proliferating configuration of bacteria to be as a filter film type. CONSTITUTION:Flowing-in water(x) from flowing-in pipe 4 is abutted on a bottom plate 9 to be made in stirring condition and direction of stream is chaged and the stream (y) is formed along the bottom plate 9 in lower passage 10. On the other hands, the stream (z) is formed along the filter member layer 7 and the stream (y) goes to the rising flow (z) in space layer 6-6'' and it is in a push-backed condition by the interrupting plate 14 and the rising stream (z) is assisted to a space layer. Since stream is stirred and buffered in the lower passage space 10 to be no up-and-down flow on the filter member surface of space layer, proliferating configuration of bacteria is concentrated to the internal part of the filter member and not form filter film shaped on the surface of the filter member. Based on these phenomenons, increase and accumulation of sludge are very small compared with proliferation in the film shape member after the lapse of time and especially in the bottom passage space the accumulation of sludge hardly occurrs by buffered stream and buffering action is not interrupted by the increase of bacteria.

Description

[Detailed Description of the Invention] Nitrogen layer in the flow direction of gold inside the monastery? Through the filtration device, which uses a layer of metal suitable for the furnace as a partition and allows water to flow in the lateral direction, a purifying function is obtained by the vertical buffering effect of the space layer. However, there is a serious drawback that bacteria propagate in the form of a P film upstream and downstream of the spatial layer. In addition, the flow of incoming raw water flows down along the door fitting surface or wall surface, and a flow is created along the bottom plate. This strong current not only obstructs the above-mentioned buffering effect, but also causes harmful effects as bacteria in the filtration chamber that is in contact with the bottom surface is washed away due to the structure in which water is passed through the filtration material layer one after another. Are there direct harms such as a large amount of bacterial cells leaking out to the outside, and indirect harms such as difficulty in recovering the bacteria? I can't avoid it. In addition, due to the bacterial phase difference in the filter media layer, the treatment of easily decomposed components is concentrated in the filter media layer and the space layer through which water first passes, resulting in the accumulation of a large amount of sludge, and the above-mentioned detachment or death of bacterial cells that occur on the bottom surface. This has the disadvantage that it spreads to the downstream filter media layer one after another and tends to lead to mass dieback. The form of increased bacterial growth, which forms a fill, is due to contact and chemotaxis between the upstream and downstream of the spatial layer, which continues to increase in thickness on the surface of the filter medium, which is richest in nutrients and #1 elements, and then downwards. This layer is constantly dying and growing due to changes in environmental conditions, and the center of the layer has less oxygen and is less active. Therefore, the effective part for purification is limited to the surface of the lump, and most of it becomes inefficient surplus sludge, and furthermore, the inside of the filter material surrounded by the P membrane becomes oxygen-deficient, and the purification function is impaired. It becomes a completely meaningless space. The above is caused by the vertical buffering effect of the spatial layer, so even if you use a filter material with a large water passage space, you can avoid the inconvenience of increasing and accumulating bacteria that cause P-smelt, apart from water passage. The present invention has been made in view of the above, and is a water storage type in which all the space layers in the longitudinal direction are installed in the tank with F appropriate layer metal upright, an inlet is provided in one space layer of the partition, and an outlet is provided in the other gs space layer. When adjusting f'pf for convenience, a flow path space is provided between the bottom plate of the main body and the bottom of the filter layer along the bottom surface, and a partition plate is used at least one place under the filter layer to prevent the flow. l! ! This invention relates to a filtration power production system that eliminates all of the disadvantages of the conventional technology through a configuration in which the air barrier is disconnected.

The above will be explained based on the embodiments. Figure 1 shows Asahikawa's ν filtration device, in which a partition plate 2.2 is installed vertically in the direction of the internal metal part of the main body 1, dividing the inlet chamber A and the discharge chamber Ci, with a filter material layer B between them, and a PA material chamber B. They communicate with each other at the bottom of the partition plate 3.3,
Filtering material layer B is provided with filtering material layer 7 through space layer 6-6't-?
A channel space 10 is provided between the lower parts 8 to 8 of the partition filtration material layers and the bottom plate 9, and the bottom of the filtration material layer 7 is continuous with a blocking plate 14. 11. Cap 1 at the 11fl sludge discharge port
2.12 is covered. When raw water flows in from the inflow vibrator 4, the water level rises at the height of the discharge port 5, flows into the inflow chamber A1, the filter medium chamber B1, the discharge chamber C and Ili, and is discharged and circulated from the discharge port 5 to the outside. As shown in T, the filter material layer is formed by storing F suitable material 11''fc between the perforated plates 13, and a blocking plate 14 is provided below the furnace material support perforated plate 13.

Customs regarding the effect.

The inflow water (a) from the inflow vibrator 4 collides with the bottom plate 9, becomes agitated, changes the flow direction, and forms the flow (b) along the bottom flow path 10 along the bottom plate 9. On the other hand, along the filter material layer T (
Flow force of c): done, the flow of (b) generates an upward flow H → in the space layers 6 and 6, and is further pushed back by the blocking plate 14, and the upward flow (c) is assisted in the space layer. . Since the flow is agitated and buffered in the flow path space 10 and does not flow upstream or downstream on the surface of the filter material in the space layer, the form of bacterial propagation is concentrated inside the furnace material and does not become FvX-like on the surface of the filter material.

From the above, even after usage time has passed, the increase and accumulation of sludge is extremely small compared to the proliferation of F-shaped sludge, and especially in the bottom flow passage space, it accumulates due to the buffer flow. It is not inhibited by an increase in bacteria.

Furthermore, the harmful effects of flow along the bottom surface are eliminated, and efficient contact oxidation between water and bacteria is performed throughout the tank, and easily decomposable components can be excavated in multiple FA material layers T to T1.
In addition, in this embodiment, artificial or natural Qi filters with large water passage spaces, which are advantageous for water accumulation, are used.
! As soon as I changed to the ckJ flow path by changing the sound quality to the ckJ flow path with completely irregular wood fibers 17 (product name, Vinylock), problems caused by partial water flow occurred because upstream and downstream flow cannot be done in the spatial layer. You can get Nariko@5@. For cleaning and regeneration, water is injected onto the filter medium using the space layer in the state 1\, and the sludge dropped into the bottom channel can be easily removed by the sludge discharge vibrator 11.

Regarding the height of the blocking plate 14, if it is low, the flow will concentrate at the edge of the blocking plate due to the flow on the bottom surface, and bacteria will be washed away and there will be ink to be peeled off, so it will be more difficult to control than the flow path space.

Furthermore, if a perforated plate or a 1G flat plate 15 is provided on the bottom plate of the P2m material layer, it can be used to prevent dynamic pressure and at the same time to store granular materials such as aggregate.

Figure 2 shows that the mode of bacterial propagation is that due to their chemotaxis, they tend to form a film on the surface of the filter medium, forming a filter medium layer in the filter medium 18 with a small water passage space, and forming a layer under the third layer 7. A blocking plate 14 is provided. Regarding the action and effect, the circulating water is sufficiently buffered in the bottom flow path 10 and then rises through the space layers 6 to 6, and the form of bacterial growth does not become a tear film, but concentrates inside the filter medium, causing penetration or water passage. It is purified by the process. In this embodiment, the partition plate 2 is omitted. In addition, a step is provided in the bottom channel 10 of the filter material layer 7 to create a sufficient buffer space and at the same time create an upward flow in the space layer (c).
I am trying to strengthen it.

The effect shown in Figure 3 is that the inflowing water flows along the bottom surface (b), but is agitated and buffered in the bottom channel 10 by the blocking plate 14 and becomes an upward flow (c). The rising water is dispersed and averaged inside the furnace suitable material and moves toward the discharge port.The circulating water that flows through the filtration material layer 7 and exits to the LA space layer 6 is subjected to the water flow resistance of the filtration material layer γ, and is transferred to the filtration material layer T. Water will be allowed to pass through the filter material layer through the space layer 6, and the bottom flow path 10 will serve as a buffer space since bacteria will not propagate in a tear film-like manner in the space layer 6. It is considered to be moving. In this embodiment, a bacterial phase difference occurs in each filter layer and is suitable for processing difficult-to-decompose components, so that a curtain can be used more effectively for the purpose of processing. In this embodiment, the partition plate 2
A perforated plate 16 is used at the bottom of the perforated plate to communicate with the filtration material layer B through the water passage holes of the perforated plate, thereby creating water flow resistance at the discharge port 5 and the filtration material chamber B, dispersing and averaging the flow, and preventing partial water flow. ing.

[Filtering material 1T equipped with a blocking plate 14 and having a large water passage space suitable for large-scale treatment of easily decomposed components with the first, near, and seventh F passage layers.
The third layer T is made of dense crushed stone, small gravel, or a wooden wool material 18 with plastic fibers irregularly intertwined with it, which has a filtering effect, L2, and the final layer has water resistance. first. Partial water passage through the second layer is prevented, and at the same time, the agitation buffer state is fully strengthened. In this embodiment, the upper water passage port 3 of the partition plate 2 with respect to the discharge chamber C is made into a perforated plate 16. The effect of the perforated plate 16 is that as the period of use progresses, bacteria accumulate, the filter layer γ becomes unable to pass water, and the water level rises. It supports the flow-down action (e), and furthermore, it flows down into the space 716 without passing through the upper part of the space layer 6, and the water exchange continues and the filter material layer T
The bacterial cells on the back side can maintain an aerobic state.

In Figure 5, the width of the filter material in the passage is widened, and is it a natural or artificial fiber that has a narrow-mesh straining effect? This is an embodiment in which the discharge port 5 is lowered near the bottom surface using irregularly entwined wood fibers or small gravel 18, and its effect is that when the bottom surface 10 is not provided, the space layer 6 to 6 to buffer vertically, P# is formed on the filtration active inflow surface! Becomes 11. According to this embodiment, since the buffering effect is performed in the bottom channel 10.10, the form of bacterial growth does not become P-sliding. Purification is carried out by catalytic oxidation due to water flow, and the water level rises with water flow resistance, and efficient purification power such as water flow due to the head and contact with sufficient air toward the discharge port 5 is obtained. Since only a small amount of sludge is generated, the above effect can be advantageously maintained for an extremely long period of time.

As is clear from the above explanation, the present invention is constructed by partitioning the furnace suitable material chamber B by arranging the entire filtration material layer 1 upright in the direction of flow n, and by arranging the filtration material layer 1 entirely upright in the direction of flow n of the furnace suitable material chamber B, and In the filtration device 1 that measures oxidation by moving the filter material, a flow path space 1° is provided along the bottom surface 9 between the lower part 8 of the filter material T and the bottom surface 9. By blocking it, the harmful effects caused by the flow that occurs along the bottom surface are removed, and the breeding form of bacteria is prevented.
By not forming the sludge in a K-shape, the amount of sludge generated is greatly reduced, and all the disadvantages of the conventional method have been solved, such as preventing the purification function from being inhibited by the increase in bacteria over a very long period of time.

In addition, different effects can be obtained depending on the position of the blocking plate, the method of use, the properties of the filter medium, the combination thereof, etc., so the present invention can be applied to a wide range of purposes, such as Asahikawa, domestic wastewater, and original vibration treatment. .

[Brief explanation of drawings]

FIGS. 1 to 5 are cross-sectional views showing embodiments of the present invention. In the container, 1 is the main body, 2 is the partition plate, 3 is the partition plate water inlet, 4 is the inlet, 5 is the discharge port, 6 is the space layer, T is the filter material layer, 8 is the bottom of the furnace material layer, 9 is the main body bottom plate, 10 is the bottom flow path,
11 is sludge discharge pipe, 12 is cap, 13 is FJI
material supporting porous plate, 14 is a blocking plate, 15 is a filtering material layer bottom plate, 1
6 is a perforated plate of a partition plate, 17.18 is a filtering material, 19 is the top of the filtering material layer, A1 inflow chamber, B, filtering material chamber, C1 discharge chamber, D
, water surface, (a), (b), (c), ni), (ho), (he) are symbols of flow. Figure 1

Claims (4)

[Claims] (1) The inside of the tank is partitioned by erecting at least one filter layer with a space layer in the flow direction, an inlet is provided in the space layer at one end, and an outlet is provided at the other end, resulting in water storage type filtration. In the device, a flow path space is provided along the bottom plate between the bottom plate and the lower part of the filtration layer, the flow path is blocked at least one place under the filtration layer with a partition plate, and the filtration layer is placed horizontally. A filtration device that achieves purification function through directional water flow or catalytic oxidation. (2) The filtration device according to claim 1, characterized in that a step is provided in the bottom channel of the filter material layer to strengthen the upward flow of the space layer and to provide a sufficient buffer space. (3) A partition plate is installed upright in the discharge side space layer to divide the discharge chamber, and a part of the partition plate is made into a perforated plate to communicate with the filter media chamber, so that partial water flow prevention effect can be obtained due to water flow resistance. A filtration device according to claim 1, characterized in that the filtration device has the following features: (4) The final filter layer is made of artificial or natural fibers that have the effect of straining the filter material, such as wood wool or small gravel, which are irregularly entangled, and the discharge port is provided near the bottom. A filtration device according to claim 1.