JP2000140829A - Polluted water purifying pit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pit having a high purifying power, capable of treating such solids as sludge in polluted water introduced from an inlet with the purifying material hardly clogged and not needing a large amt. of the purifying material and to reduce the cost by decreasing the frequency of material replacement. SOLUTION: This purifying vessel has a main body 1, a purifying material bed 3 which is charged in the main body 1 and purifies polluted water, an inlet pipe 7 to conduct the polluted water to the upper position of the main body 1 and an outlet pipe 8 for discharging the purified water from the lower position of the main body. In this case, a settling tank 9 is provided to the inlet pipe 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polluted water purifying basin installed for the purpose of purifying groundwater contaminated by pesticides or the like and contaminated surface water (hereinafter referred to as "contaminated water") generated at golf courses, parks and the like. About.

[0002]

2. Description of the Related Art Conventionally, this type of polluted water purifying basin includes:
For example, while providing an inlet of an inflow pipe through which contaminated water flows in near the top of the activated carbon layer of a box body filled with granular activated carbon as a purifying material for absorbing pesticides, purified water is provided near the bottom of the activated carbon layer. Although it is known to provide an outlet of an outflow pipe through which water flows out, according to this contaminated water purification basin,
Since the contaminated water flowing in from the inlet flows down naturally through the gap between the activated carbon particles, the pesticide contained in the contaminated water is adsorbed and removed by the activated carbon particles, so that the contaminated water becomes purified water. It is discharged from the outlet.

[0003] Further, in a box body provided with a purified water storage section for temporarily storing purified water below the activated carbon layer, an inlet of an inflow pipe into which contaminated water flows and an outlet of an outflow pipe through which purified water flows out. In addition, there has been proposed an apparatus in which a part communicating with the purified water storage part is provided at a position higher than the upper surface of the activated carbon layer (Japanese Patent Laid-Open No. 6-63539). This is because the outlet is located at a level higher than the upper surface of the activated carbon layer, so that the contaminated water accumulates up to the height of the outlet, and is discharged through the outlet pipe when the height becomes higher. Here, since the contaminated water is immersed in the activated carbon layer until it reaches the height of the outlet, the entire activated carbon layer can be effectively used and purified water (hereinafter referred to as “purified water”). Is
Since the water is stored in the purified water storage section, contaminated water during purification is not discharged, and only purified water is discharged through the outflow pipe.

[0004]

However, in the prior art as described above, the polluted water flowing from the inflow pipe contains solids such as mud, but the contaminated water flowing from the inflow pipe has Since solid materials such as mud are not treated, the purification material is easily clogged.
There is a problem that a large amount of purification material is required. Also,
Since the purifying material is easily clogged, there is a problem that the purifying material must be replaced many times. Also, since the polluted water purifying basin is buried underground, there is a problem that it takes time and cost to exchange the purifying material. Further, there is a problem that the purification power is insufficient and the purification is not completed.

[0005] In order to solve the above-mentioned problem, solid substances such as mud in contaminated water flowing from the inlet are treated with high purifying power, so that the purifying material is hardly clogged and a large amount of purifying material is obtained. It is an object of the present invention to provide a polluted water purifying basin that can reduce costs by reducing the number of replacements of the purifying material without requiring a water purifier.

[0006]

In order to achieve the above object, the present invention provides a contaminated water purifying basin according to the present invention, comprising: a basin body; a purifying material layer filled in the basin body for purifying contaminated water; A contaminated water purification basin for purifying contaminated water, comprising: an inflow pipe that guides contaminated water to an upper position of the main body; and an outflow pipe to which purified water is guided from a lower position of the box body. A sedimentation tank is provided. That is, the provision of the sedimentation tank in the inflow pipe is characterized in that the outflow of solids such as mud to the purification material layer can be reduced.

Further, in the polluted water purifying basin according to the present invention, the inflow pipe is inserted in a horizontal direction from a side surface of the basin body, an inflow port is provided at a portion other than a bottom portion of the inflow pipe, and the sedimentation tank is provided. , And is communicated with the bottom surface of the inflow pipe. In other words, by providing the inflow port at a position other than the bottom surface of the inflow pipe, it is possible to prevent the outflow of solids such as mud from the bottom surface, so that only water can flow out to the purification material layer. In addition, by allowing the sedimentation tank to communicate with the bottom of the inflow pipe, solids such as mud can be precipitated in the sedimentation tank. Thereby, since outflow of solids such as mud to the purification material layer is reduced, it is characteristic that clogging of the purification material can be prevented.

[0008] Further, a polluted water purifying basin according to the present invention is characterized in that the settling tank is detachable from the inflow pipe. That is, the inflow pipe has a sedimentation tank, and the sedimentation tank is detachable, so that the sedimentation tank can be easily replaced, so that the cost can be reduced.

[0009] Further, the polluted water purifying basin according to the present invention is characterized in that the inflow pipe is guided above the purifying material layer filled in the basin body. That is, it is characteristic that the settling tank can be easily replaced by providing the inflow pipe above the purification material layer.

[0010] The polluted water purifying basin according to the present invention is characterized in that the outflow pipe is filled with a purifying material. That is, it is characterized in that the purifying power can be further enhanced by filling the outflow pipe with the purifying material.

[0011] Furthermore, the polluted water purifying basin according to the present invention,
The basin main body has another inflow port for introducing contaminated surface water into the basin main body. That is, by providing an inlet other than the inlet pipe, not only the contaminated groundwater but also the contaminated surface water can be purified.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a contaminated water purifying basin according to the present invention will be described with reference to the drawings. Here, FIGS. 1 to 3 are front sectional views of first to third embodiments of the polluted water purifying basin according to the present invention.

As shown in FIG. 1, a first embodiment of a polluted water purifying basin according to the present invention comprises a frame body 1 and a purifying material layer 3.
, A purified water storage section 6, an inflow pipe 7, an outflow pipe 8, and a sedimentation tank 9 as main components. Hereinafter, each of the above components and other components will be described.

The basin body 1 has a bottom lump 1a, a side lump 1b, and a top lump 1
c and a grating lid 1d fitted thereto. A purified water reservoir 6 is provided above the bottom lump 1a, and a port 8a (outlet) of an outflow pipe 8 from which purified water purified in the purified water reservoir 6 is discharged is provided. Have been. Here, the grating lid 1d functions as another inflow port into which the contaminated surface water such as rainwater, among the contaminated water, flows in.

The purifying material layer 3 is to be filled in the frame body 1, and is specifically made of a material having an adsorbing power such as activated carbon. Activated carbon is particularly effective for the present invention. The purifying material layer 3 is filled on the purified water reservoir 6 via the filter plate 5 and the gravel layer 4, and is filled above the inflow pipe 7 and the outflow pipe 8. The filter mat 2 is placed on the purifying material layer 3. Here, the filter plate 5 is a porous plate, and may be any plate that can remove solids and allow only liquid to pass through. The gravel layer 4 plays a role as a filter medium. The filter mat 2 is particularly effective in the form of a mesh plate, and thereby removes solid matter such as mud in contaminated water flowing from above.

The purified water storage section 6 is a layer for temporarily storing purified water, and is provided below the purification material layer 3. Since the outflow pipe 8 described later is provided at the upper position of the purification material layer 3, when the contaminated water reaches the height of the outflow pipe 8 described later, only the purified water from the purified water storage unit 6 is described later. And is discharged to the outside. At this time, since the contaminated water is immersed in the purification material layer 3, the purification material layer 3 can be effectively used. The present invention can be applied even when the purified water storage unit 6 is not provided.

The inflow pipe 7 is a pipe for guiding contaminated water to an upper position of the main body 1. This inflow pipe 7 is inserted horizontally through the side lump 1b of the basin body 1, and
, That is, at an upper position of the box body 1. The inflow pipe 7 is provided at a position higher than the height of an outflow pipe 8 described later. By this, by natural flow,
The contaminated water is purified by the purification material layer 3 and discharged. Also,
A detachable lid is fitted to the inlet of the inflow pipe 7,
By removing this, the inside of the inflow pipe 7 can be easily cleaned. Further, an inlet 7a composed of a plurality of small holes is provided on the upper surface or the side surface of the inflow pipe 7. Thereby, it is possible to reduce the flow of solids such as mud, which is heavier than water contained in the contaminated water, to the purification material layer 3. Further, a sedimentation tank 9 is provided below the inflow pipe 7, so that solid matter such as mud contained in the contaminated water is prevented from settling and leaking to the purification material layer 3. .

The outflow pipe 8 is a pipe for discharging the purified contaminated water to the outside of the contaminated water purification tank. The outflow pipe 8 has its mouth 8a provided below the purifying material layer 3, that is, at the lower position, or in the purified water storage section 6, and the other mouth 8 b is provided outside the box body 1. It is installed so that purified water purified by the purification material layer 3, the gravel layer 4, and the like can be guided outward from the basin body 1. When the outlet 8 a of the outflow pipe 8 is installed in the purified water storage section 6, the height of the outlet 8 b is installed so as to reach the upper position of the purification material layer 3. As a result, the contaminated water is stored up to the height of the outlet 8b of the outflow pipe 8, is purified by the purification material layer 3, and the purified water is guided from the purified water reservoir 6 by the outflow pipe 8 and discharged. The purifying material layer 3 can be used effectively. Furthermore, if the purifying material 10 similar to the purifying material layer 3 is filled in the outflow pipe 8, the purifying power is improved.

The sedimentation tank 9 is provided below the inflow pipe 7 and sediments solids such as mud in contaminated water guided by the inflow pipe 7, and solids such as mud are used to purify the purification material layer 3. To reduce leakage. Thereby, since solid matter such as mud is already removed, clogging and the like of the purification material layer 3 can be reduced, and the number of replacements of the purification material layer 3 itself can be reduced. The sedimentation tank 9 is detachable from the inflow pipe 7. Thereby, the exchange of the sedimentation tank 9 becomes possible.

Since the contaminated water flows out only above the inflow pipe 7 because of the above-mentioned structure, solid matter such as mud is unlikely to flow out to the purification material layer 3. Further, since solid matter such as mud is precipitated in the sedimentation tank 9, it is difficult for solid matter such as mud to flow into the purification material layer 3. As a result, clogging or the like of the purification material layer 3 can be reduced, and the frequency of replacement of the purification material layer 3 decreases. Further, since the sedimentation tank 9 is detachable, the exchange of the sedimentation tank 9 becomes easy, and the exchange of the purification material layer 3 is much easier.
Further, the detachable lid provided on the inflow pipe 7 makes it possible to reduce clogging of the inflow pipe 7 itself by washing or the like.

As shown in FIG. 2, the second embodiment of the polluted water purifying basin according to the present invention, like the first embodiment, has a frame main body 1, a purifying material layer 3, and a purified water reservoir. The part 6, the inflow pipe 7, the outflow pipe 8, and the sedimentation tank 9 are main components. Hereinafter, each of the above components and other components will be described.

The box body 1 is configured in the same manner as in the first embodiment. Further, the purified water reservoir 6, the filter plate 5, the gravel layer 4, the purification material layer 3, the filter mat 2, and the outflow pipe 8 are also arranged on the frame body 1 in the same manner as in the first embodiment. Have been.

The inflow pipe 7 is connected to the side lump 1b of the frame body 1.
And is installed at a position above the purification material layer 3. A sedimentation tank 9 such as a filter is provided in the middle of the inflow pipe 7, so that solid matter such as mud can be removed before the contaminated water reaches the inflow port 7a. The sedimentation tank 9 such as this filter is also detachable, and replacement is easy. Further, since solid substances such as mud are removed in advance by the sedimentation tank 9 such as a filter, the inflow port 7a of the inflow pipe 7 may be provided also on the bottom surface.

With the above-described structure, the sedimentation tank 9 such as a filter can be used as in the first embodiment.
Since solid matter such as mud in the contaminated water is removed, it is possible to reduce the outflow of solid matter such as mud to the purification material layer 3. Thus, clogging of the purification material layer 3 can be reduced, and thus the frequency of replacement of the purification material layer 3 itself can be reduced. Further, the sedimentation tank 9 can be easily replaced in terms of arrangement.

As shown in FIG. 3, a third embodiment of the contaminated water purifying basin according to the present invention is the first embodiment,
As in the first embodiment, the frame body 1, the purification material layer 3, the purified water reservoir 6, the inflow pipe 7, the outflow pipe 8, the sedimentation tank 9,
Is a main component. Hereinafter, each of the above components and other components will be described.

The basin body 1 is provided in the first embodiment or the second embodiment.
The configuration is the same as that of the embodiment. Further, the purified water storage unit 6, the filter plate 5, the gravel layer 4, the purification material layer 3, the filter mat 2, and the outflow pipe 8 are also similar to those of the first embodiment or the second embodiment. It is arranged and configured on the frame body 1.

The inflow pipe 7 is inserted horizontally through the side lump 1b of the frame body 1 above the purifying material layer 3.
In addition, as in the first embodiment, an inlet 7a for discharging contaminated water into the contaminated water purifying basin is provided on the upper and side surfaces of the inflow pipe 7. A detachable sedimentation tank 9 is provided below the inflow pipe 7. Further, although not shown in FIG. 3, similarly to the second embodiment, a filter provided with a detachable sedimentation tank 9 such as a filter in the middle of the inflow pipe 7 may be used.

With the above construction, the inflow pipe 7 itself is not buried in the purifying material layer 3, so that the sedimentation tank 9 can be easily replaced. The same effect as in the second embodiment can be obtained.

[0029]

Since the polluted water purifying basin according to the present invention is constructed as described above, since the settling tank is provided in the inflow pipe, it is possible to remove solid matter such as mud contained in the contaminated water. Since the outflow of solids such as mud to the purifying material layer is reduced, clogging of the purifying material layer can be reduced.

Further, since the sedimentation tank provided on the inflow pipe is detachable, it is easy to replace the sedimentation tank. By providing the sedimentation tank, replacement of the purification material itself is reduced, so that the cost for replacement can be reduced. Becomes possible.

Further, since the outflow pipe has a purifying material in addition to the purifying material layer, the purifying power is improved.

Further, not only contaminated groundwater but also contaminated surface water such as rainwater can be purified.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a first embodiment of a contaminated water purifying basin according to the present invention.

FIG. 2 is a front sectional view of a polluted water purifying basin according to a second embodiment of the present invention.

FIG. 3 is a front sectional view of a polluted water purifying basin according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Masu main body 1a Bottom lump 1b Side lump 1c Top lump 1d Grating lid 2 Filter mat 3 Purifying material layer 4 Gravel layer 5 Filter plate 6 Purified water storage part 7 Inflow pipe 7a Inflow port 8 Outflow pipe 8a Port 8b Port 9 Precipitation Vessel 10 Purifying material

Continued on the front page (72) Inventor Hiroshi Tagaya 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Tsuyoshi Miura 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. Company F term (reference) 4D024 AA05 AA10 AB02 BA02 DB03 4D041 AA01 AA03 AB03 BA01 BB03 BB04 BB12

Claims (6)

[Claims] 1. A basin body, a purifying material layer filled in the basin body and purifying contaminated water, an inflow pipe for introducing contaminated water to an upper position of the basin body, and purified water from a lower position of the basin body. A contaminated water purification tub for purifying contaminated water, comprising: an outflow pipe through which is guided, and a settling tank provided in the inflow pipe. 2. The inflow pipe is inserted in a horizontal direction from a side surface of the box body, an inflow port is provided at a portion other than a bottom portion of the inflow tube, and the settling tank communicates with a bottom portion of the inflow tube. The contaminated water purification basin according to claim 1, characterized in that: 3. The basin for purifying contaminated water according to claim 1, wherein the settling tank is detachable from the inflow pipe. 4. The purification of contaminated water according to claim 1, wherein the inflow pipe is guided above the purification material layer filled in the tub body. Masu. 5. The contaminated water purifying basin according to claim 1, wherein the outflow pipe is filled with a purifying material. 6. The contaminated water purification apparatus according to claim 1, wherein the basin body has another inlet for introducing contaminated surface water into the inside of the basin body. Masu.