JPH07204676A - Purification work for river - Google Patents

Abstract

PURPOSE:To install purification means such as microorganisms and ceramics without deteriorating river environment. CONSTITUTION:On the technical basis of river work in which natural stones 11 with appropriate shapes are installed in combination, a flexible container 12 filled with purification means is arranged between adjacent natural stones 11. As the second means, on the technical basis of river work in which natural stones 11 with appropriate shapes are installed in combination, a sealed container filled with purification means is fixed on the natural stone 11. The flexible container 12 inserted in a gap between the stones is held firmly by the weight of the stones without being released by floods.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a river purification technique based on a river construction method using natural stone.

[0002]

2. Description of the Related Art Conventionally, in the case of purifying a river, it is common to assemble river water with a pump and guide the water to a water purification facility for purification treatment. However, the purification facility requires construction costs and maintenance costs. Because of the large amount of money, there is a limit to the installation of facilities within the limited public budget.

Therefore, it is conceivable to use microorganisms or purified water ceramics as a means for promoting the purification of rivers while keeping the cost down. Domestic wastewater and industrial wastewater contain a large amount of oil and organic matter, but it is known that most of them are decomposed and disappeared by the activity of aerobic bacteria, and the pollutant gas contained in water molecules is water molecules produced by purified water ceramics. It has been reported that it can be opened by shredding.

[0004] Conventionally, the use of such microorganisms and purified water ceramics has been used for a grease trap in a washing place of a restaurant, miscellaneous drainage tank of a building, a wastewater tank, etc. It was a method of spraying clean water ceramic powder to a water tank to purify sewage.

[0005]

When considering purification of river water, there is concern that the method of simply spraying microorganisms or purified water ceramics on the river may contaminate the river during repeated long-term purification treatment. To be done. For example, a well-known water purification material at present is incineration ash of tires, but if such powder is sprayed on a river for a long period of time, it is possible to purify river water in the basin within a short period of time. Since the ceramic powder is caused to flow downstream by the flow force, if the regular spraying work is neglected, not only the purification capacity of the area is deteriorated but also the ceramic powder is deposited on the river mouth and seawater.

[0006] It is also conceivable to arrange a package in which microorganisms capable of purifying contaminated water and ceramic powder are enclosed in a river. However, it is necessary to install the package because the package becomes large because it is necessary to withstand the flow of water when the river is flooded. There is a problem that workability at the time of replacement deteriorates. Therefore, an object of the present invention is to easily dispose water purification means such as microorganisms and ceramics without deteriorating the river environment.

[0007]

[Means for Solving the Problems] In order to achieve the above object and achieve the object, the river purification method according to the present invention is adjoined on the technical premise of a river construction method in which natural stones of appropriate shapes are combined and arranged. A flexible container filled with water purification means is placed between the natural stones. In addition, the second means fixes the enclosed container filled with the water purifying means to the arranged natural stones on the technical premise of the river construction method in which natural stones of appropriate shapes are combined and arranged.

[0008]

The method for purifying a river according to the present invention is premised on that natural stones are arranged in combination in the river. The natural stone in this case is to be arranged as a riverbed structure in the revetment reinforcement and head construction. In the case of the first invention, the flexibility of filling the gap between the adjacent natural stones with microorganisms or purified water ceramics. Dispose of the container. Since the weight of natural stones used for river construction reaches several tons, the flexible container sandwiched between the stones is securely fixed by the weight of stones and is not washed away by the flood flow. Therefore, the river water can be surely purified by the water purifying means of a plurality of containers arranged in the area. When exchanging this flexible container, it is possible to take out the natural stone by simply pulling it out without moving it, and it can be easily installed by pushing it into the gap between the natural stones, and the replacement work is also possible. It will be easy.

On the other hand, in the second aspect of the invention, since the enclosing container in which the water purifying means is filled is fixed to the natural stone to be arranged, the container does not flow out even in the event of a severe flooding, and the water purifying means in the container acts so that The river water in the area can be purified at all times.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show an example of a river purification method according to the present invention. In this figure, reference numeral 11 is a natural stone arranged in combination with the laying surface, and 12 is the natural stone 11
Is a flexible container arranged in the gap, 15 is river bed gravel (back gravel), and 16 is a river surface.

As shown in FIG. 3, for example, the flexible container 12 is formed into a cylindrical shape using a soft resin such as vinyl chloride, has a large number of fine holes 13 formed on the surface thereof, and is filled with microorganisms. There is. The soft resin is used to flexibly correspond to the gap between the natural stones 11, and the micropores 13 are provided to allow river water to pass through. Since microorganisms require oxygen for habitation, it is desirable that the container 12 be filled with a microporous substance, for example, charcoal or porous stone, and the micropores be allowed to inhabit. The flexible container 12 may be provided with a detachable lid 14 for easy replacement at a later date.

The natural stone 11 in this case is of a type in which a large natural stone 11 is connected by a wire rope to form a block frame and a small natural stone 17 is embedded in the block space P, as shown in FIG. 4, for example. Used in revetment blocks (No. 5-58850, Kaikaidaira). In this case, the flexible container 12 may be arranged in an appropriate gap between the natural stones 11 and 17. In addition, as shown in FIG. 5, the natural stones 11 are combined in an arched shape, and a belt work block (actual Kaihei 4-86262).
No.) etc.

In the river construction method in which the natural stones 11 are combined in this way, the flexible container 1 is placed in the gap between the natural stones 11 (17).
By arranging 2 and enclosing the microorganisms therein, the river water is constantly purified by the activity of the microorganisms. The micropores 13 of the flexible container 12 allow river water to permeate and allow the microorganisms to decompose pollutant components. Although the number of microorganisms inhabiting one flexible container 12 is limited, and therefore the ability to be purified by one flexible container 12 is also limited, a large number of these flexible containers 12 are arranged in the spaces between the natural stones 11. Since it can be installed, the water quality can be purified in a stepwise and reliable manner from upstream to downstream.

There are various kinds of microorganisms such as those having a property of decomposing oil components and those having a property of decomposing organic components, but the arrangement configuration according to the kind is not particularly limited. For example, a microorganism that decomposes organic components is arranged on the upstream side, and a microorganism that decomposes oil is arranged on the downstream side. Of course, microorganisms having various properties may coexist in one flexible container 12.

These microorganisms inhabit the flexible container 12 at the initial stage of installation, but the residence may be changed from the micropores 13 to the outside depending on the flow force. However, since many microorganisms originally inhabit the river and maintain the natural cycle, even if there is a runoff, the river environment does not deteriorate. The flexible container 12 is effective in that it can supply oxygen necessary for the inhabitation of microorganisms by using a porous material.

In the present invention, the substance to be filled in the flexible container 12 is not limited to microorganisms. Even if a certain kind of ceramic having a water purifying effect is enclosed in the flexible container 12, the same effect as in the above embodiment can be obtained. Examples of the ceramics in this case include zeolite (zeolite), silica-containing substances,
Natural rocks or solid materials such as divalent and trivalent iron salt-containing substances and amphibolites (eg, rocks containing amphibolite, feldspar, quartz, chamosite) are used. The specific ceramics may be unified and used, or different ceramics may be used in combination. For example, in the case of zeolite, these ceramic pieces react with water molecules to create new molecular structures,
In the case of divalent and trivalent iron salts, the point is to promote purification of water by cutting water molecules and releasing contained polluted gas. Regarding the relationship between ceramic (water purification substance) and water purification action, it is said that, for example, in charcoal and amphibolite, electromagnetic waves in a specific wavelength range act on water molecules to align the magnetic rotation directions of the water molecules.

In this embodiment, the flexible container 12 is made of a soft resin. However, the same effect as that of the above embodiment can be obtained as long as the space between the natural stones 11 can be flexibly adjusted and the water permeability is maintained. It is a matter of course that a bag body or a fiber bag using a resin-made microporous film may be used because it can be obtained. Even when vinyl chloride is used, its shape is not limited to a cylindrical shape.

FIG. 6 shows another embodiment of the present invention. In this purification method, natural stones 21 arranged in combination are used.
A recess 25 is provided in the recess 25, and the enclosing container 22 is placed in the recess 25.
To bury. The property of the enclosing container 22 is similar to that described above, and microbes or purified water ceramics are enclosed, but a slight gap 23 is provided between the recess 25 and the enclosing container 22 in order to expand the contact area with water. Is desirable. In this case, in order to fix the sealed container 22, a nut hole 26 (or bolt) may be provided on the bottom surface of the recess 25, and the other sealed container 22 may be provided with a bolt 27 (or nut hole).

According to this structure, all natural stones 21
On the other hand, since the enclosed container 22 can be arranged, not only can the water purification efficiency be improved, but also because the enclosed container 22 can be replaced more easily, maintenance after installation can be simplified. When microorganisms are used, maintenance after installation is not necessary frequently, but when ceramics are used, some require replacement in a relatively short period of time, which makes the replacement work extremely simple. Since the enclosure 22 is the same in that it is washed by the flow, there is no difference in the water purification effect.

FIG. 7 shows another means for fixing the enclosing container 32 to the natural stone 31, in which the arm 33 is attached to the enclosing container 32.
Is provided, and the arm 33 is fitted in a fitting hole 34 formed in the natural stone 31. The fitting method is, for example, cutting the thread of the arm 33 and screwing the thread into the female screw of the fitting hole 34. It may be glued.

In this case, even if the enclosure 32 is of a type that can be attached to and detached from the arm 33, the arm 33 has a fitting hole 3
Even if it is of a type that can be detached from the container 4, the enclosure 32 can be easily replaced, and the water purification effect is not inferior to that of the above-mentioned embodiment. Although the enclosure 32 does not have to be flexible, it needs to have fine holes for water permeation.

8 to 10 show another embodiment of the enclosure according to the present invention. The enclosing container 40 includes a bolt 42 fixed to a natural stone 41 and a resin-molded hemispherical net 43. The hemispherical net 43 includes an enclosing bag 45.
Be paid. The hemispherical net 43 has a lid 46 at the bottom. Reference numeral 47 is a bolt insertion hole.

The enclosing bag 45 is a bag filled with micro-organisms and a micro-porous substance serving as a residence. For example, linen cloth is used to make it water permeable, and this is wrapped around the bolt 42, and the hemispherical net 43 is placed over it. Cover and tighten with nuts 48. 44 is a washer.

When the enclosing container 40 is arranged, the direction with respect to the flow force is not particularly limited, but when it is arranged so as to face the flow force indicated by the arrow A, the hemispherical net 43 is pressed against the natural stone 41 by the flow force A. And a good fixed state is achieved. This is because the bottom surface shape of the hemispherical net 43 is deformed by the flow force, and the hemispherical net 43 is easily attached even to the natural stone 41 having an irregular shape. The hole 49 for fixing the bolt has, for example, a depth of 5 cm and an inner diameter of about 19 mm. Also in FIG.
By disposing the tubular washer 50 around the bolt, as shown in FIG.
This washer 50 is made of resin (or rubber), for example.
As shown in FIG. 12, when the washer 50 is bonded and fixed to the hemispherical net 43 in advance, workability is improved.

When such an enclosure 40 is used,
Initial installation is easy, and regular replacement of water purification substances (microorganisms, ceramics, etc.) is also easy. In addition to natural stones, it can be easily installed on existing equipment such as concrete revetments, concrete drop stones, and tetra pots, enabling water purification equipment to be installed without major construction work.

The shape of the hemispherical net is not particularly limited. Any shape such as a cone shape, a pyramid shape, or a prism shape can be applied. Further, the molding material is not limited to resin, and rust-resistant metal such as stainless steel may be used. Further, the enclosing bag 45 does not necessarily have to be wound around the bolt 42 and may be divided into a plurality of parts and housed in the hemispherical net 43.

[0027]

As described above, according to the river water purification method of the present invention, water purification means such as microorganisms and ceramics can be easily arranged without deteriorating the river environment.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a water purification method according to the present invention.

FIG. 2 is a plan view showing an example of a water purification method according to the present invention.

FIG. 3 is a perspective view showing an example of a flexible container according to the present invention.

FIG. 4 is a plan view showing an example of stonework to which the water purification method according to the present invention is applied.

FIG. 5 is a plan view showing another embodiment of a stonework to which the water purification method according to the present invention is applied.

FIG. 6 is a side view showing another embodiment of the water purification method according to the present invention.

FIG. 7 is a diagram showing an example of fixing the enclosure according to the present invention.

FIG. 8 is a side view showing another example of fixing the enclosure according to the present invention.

FIG. 9 is a diagram showing an example of fixing the enclosure shown in FIG.

FIG. 10 is a perspective view showing a configuration example of the sealed container shown in FIG.

FIG. 11 is a diagram showing a configuration example of the sealed container shown in FIG.

12 is a diagram showing another configuration example of the sealed container shown in FIG.

[Explanation of symbols]

 11,17,21,31,41 Natural stone 12 Flexible container 13 Micropore 14 Lid body 15 Riverbed gravel 16 River surface 22,32,40 Encapsulation container 23 Gap 25 Depression 33 Arm 34 Fitting hole 42 Bolt 43 Hemisphere net 45 Enclosed bag A

Claims (2)

[Claims] 1. A river purification method for arranging natural stones of appropriate shapes in combination, wherein a flexible container filled with water purification means is arranged between adjacent natural stones. 2. A river purification method in which natural stones of appropriate shape are arranged in combination, wherein a sealed container filled with water purification means is fixed to the arranged natural stones.