JPH0985281A - Water purification method by suspended vegetation material and suspended vegetation material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve water purifying efficiency and working efficiency and to minimize the effect on a natural ecosystem and to enable the harmony with natural environment.

SOLUTION: In a method for preventing the diffusion of a floating pollutant to rivers or the sea to purify water, a vegetation member 16 obtained by planting aquatic plants 14 in a vegetation foundation 12 is connected to a float 22 after the root systems 20 of the aquatic plants 14 are sufficiently grown to form a floating vegetation material and this floating vegetation material is arranged on the surface of the water of rivers or the like to mutually demarcate the surface of the water to adsorb the floating pollutant by the vegetation foundation 12. The aquatic plants 14 absorb the pollutant from the root systems 20 thereof and the pollutant is accumulated in plants by action transpiring only purified moisture from stomata and the pollutant on the surface of the water and in water is removed to purify water.

COPYRIGHT: (C)1997,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the prevention of diffusion of floating pollutants such as oil or similar pollutants to the water surface of rivers, lakes, seas, etc., or surface layers of rivers, lakes, seas, etc. for various purposes. The present invention relates to a water purification method and a floating vegetation material using a floating vegetation material that can purify water.

[0002]

2. Description of the Related Art Conventionally, as a means for preventing floating pollutants such as oil from spreading to the surface of a river or the like, an oil fence made of drums, plastic cans, etc. must be firmly attached to the surface of the river or to the land or ship. It is known to be combined and installed.

[0003]

The conventional method for preventing floating pollutants such as oil from diffusing to the surface of water such as rivers uses an oil fence that has no adsorption action, and therefore has no water purification action. It was a problem.

Further, since the oil fence itself does not adsorb the floating pollutants, the floating pollutants are separated from the uncontaminated water surface by the oil fence, and then the floating pollutants are neutralized by the neutralizing agent and the discharge pump is used. It is necessary to remove the water from the water surface through a removing device such as the above, and this work is very complicated, which has been a problem.

Further, since the oil fence is composed of iron, plastic, etc., which are not natural objects such as plants, it is difficult to adapt to the surrounding natural environment, and not only is it unsuitable as a habitat for living things such as birds, but also landscape. The problem was that it became very unnatural.

[0006] Further, since the oil fence is installed firmly connected to the land or a ship, is hard to move, and has no flexibility, it is not polluted by the oil fence when the flow rate of a river increases. It has been a problem that it is difficult to adapt to various situations such as floating pollutants being mixed into the side by overflow.

Further, when removing the floating contaminants adhering to the oil fence, it is forced to wash with a chemical solution, a detergent or the like, which causes a problem that it cannot be surely washed.

In view of such drawbacks, the present invention has a high water purification efficiency and work efficiency, minimizes the effect on the natural ecosystem, and purifies water by using floating vegetation materials that can be harmonized with the natural environment. It is intended to provide methods and floating vegetation materials.

[0009]

The method of the present invention is a method for preventing the diffusion of floating pollutants into rivers, lakes, the sea, etc., and purifying the water quality.
A vegetation member made by planting on a vegetation base made of plant fiber,
After sufficiently developing the root system of the aquatic plant, a floating vegetation material formed by combining with a buoyant body, such as an elastic member or a pipe member, is placed on the water surface of a river or the like to partition the water surface into each other and float. By adsorbing pollutants to vegetation members, aquatic plants absorb the pollutants from their root system and evaporate only purified water from the stomata, thereby accumulating pollutants in the plant body and removing pollutants from the water surface and water. Characterized by removing and purifying water quality, or when a permeable apron is hung on a buoyancy body, or a weight is attached to the lower end of the permeable apron, or when a buoyancy body is constructed by a pipe member. The end of the buoyant body is sealed by a sealing tool.

The floating vegetation material of the present invention is a vegetation in which aquatic plants that grow even in the water-extracted state are plant fibers that are placed on the surface of water such as rivers, lakes and the sea to prevent the diffusion of floating pollutants. A vegetation member that has been planted on the base is characterized by sufficiently growing the root system of an aquatic plant and is connected to a buoyant body such as an elastic member or a pipe member, or a permeable apron droops on the buoyant body. Or a weight is attached to the lower end of the transparent apron, or when the buoyant body is constituted by a pipe member, the end of the buoyant body is sealed by a sealing tool. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A floating vegetation material according to the present invention is shown in FIG.
~ Based on Drawing 3, it explains in full detail below.

A vegetation member 16 is obtained by planting aquatic plants 14 that grow even in a drawn state on a vegetation base 12 made of plant fibers.
Are formed.

In this example, the plant fiber is a palm fiber (a plant fiber obtained from the skin of palm fruit), and by loading the net 18 with the palm fiber, the cylindrical vegetation base 12 is formed. .

In the present invention, the vegetation member 16 is formed from plant fibers because the plant fibers are plant root system vegetation bases 1.
This is because it is easy to penetrate from 2 and is flexible and lightweight, and the space created by the plant fiber, which is a natural material, effectively functions as an activity site for microorganisms that purify water.

Among the plant fibers, palm fiber is the most suitable because it is available at a low cost.

The planting interval of the aquatic plant 14 is 10
Optimally about 30 cm.

The aquatic plant 14 used in the present invention is a river,
It is desirable to select and use aquatic plants that match the natural conditions of the lake, sea, etc. as appropriate.In this example, the root system of the aquatic plants absorbs water in the water and evaporates the water purified from the stoma of the leaves on the water. It adopts reed, which is a water extraction plant. In recent years, in Lake Biwa, coastal reeds have been cut down by revetment work, so there is no natural purification action and pollution is progressing. Therefore, reeds are adopted in this example.

The vegetation member 16 is placed in a water tank (not shown) that is managed for growing and fertilizing, and the root system 20 of the aquatic plant 14 is sufficiently grown.

This is because the aquatic plant 14 plays the role of a filter, and immediately after the aquatic plant 14 is installed on the surface of the water of a river or the like, the root system 2 of the aquatic plant 14 that has sufficiently developed the contaminated water of the river or the like.
0 absorbs and diffuses only the purified water from the pores of the aquatic plant 14 to accumulate pollutants in the plant body,
This is because the pollutants are removed from the water surface and water, and the action of purifying the water quality is activated.

Further, by sufficiently developing the root system 20 of the aquatic plant 14, the vegetation member 16 can be easily moved to the installation site and handled at the installation site.

A long buoyant body 22 is formed by the pipe member.

The pipe member is adopted as the buoyant body 22.
This is because the pipe member has a large buoyancy, is easy to process, and is easy to handle.

A sealing member 24 is sealed at the end of the pipe member which is the buoyant body 22.

This is because the buoyancy of the buoyancy body 22 is ensured by enclosing the air in the buoyancy body 22 by sealing the end of the pipe member which is the buoyancy body 22.

A transparent apron 26 is suspended from the buoyant body 22.

The permeable apron 26 has a surface layer of a river or the like contaminated, but allows uncontaminated deep water to easily move to the other side, and does not block the flow of the river or the like. Play a role.

A weight 28 is attached to the lower end of the transparent apron 26.

The weight 28 is for preventing the buoyant body 22 and the vegetation member 16 from flowing by the flow of a river or the like.

A hook 30 is attached to the outer peripheral surface of the buoyant body 22.

Two vegetation members 16 are provided on both sides of the buoyancy body 22.
By hooking the hooks 30 to the nets 18 of the vegetation members 16 to combine them to form a floating vegetation material.

Another example is shown in FIGS. 4 and 5. In this example, the buoyant body 22 of the preceding example is constituted by an elastic member,
A large number of buoyant bodies 22 and vegetation members 16 are connected in parallel.

By using the buoyant body 22 as an elastic member,
The shape can be easily deformed, can be easily moved, and a large boundary can be established between the water surface contaminated by the floating pollutants and the uncontaminated water surface, and the contamination of the uncontaminated water surface can be reliably prevented.

A method of purifying water using the present floating vegetation material will be described in detail below with reference to FIGS.

First, on the water surface of a river or the like, the present floating vegetation material is arranged between an area in which floating pollutants are floating and an area not contaminated.

Next, the floating vegetation material is moved so as to reduce the area of the floating pollutants.

In this state, the plant fibers forming the vegetation base 12 of the floating vegetation material adsorb the floating pollutants, and the aquatic plants 14 absorb the pollutants from their root system 20, so that only the purified water evaporates from the pores. By the action, the pollutants are accumulated in the plant body, the pollutants are removed from the water surface and the water, and the water quality is purified.

Next, after the vegetation base 12 and the aquatic plants 14 have adsorbed all the floating pollutants, the vegetation member 16 is removed from the buoyancy body 22, washed, and prepared for the next use.

In addition, the method shown in FIGS.
Since the method is the same as that shown in FIG. 3, description thereof will be omitted.

As described above, according to the present invention, the vegetation member 16 in which the aquatic plant 14 is planted is connected to the buoyant body 22, so that the floating pollutant and the uncontaminated water surface are mixed in the water surface of the river or the like. Immediately after it was installed in the space and moved to reduce the area of suspended pollutants, the vegetation base 12
While the plant fiber forming the adsorbs suspended pollutants,
The root system 20 of the aquatic plant 14 absorbs the floating pollutants, evaporates the purified water from the pores of the aquatic plants 14 and supplies the water to the river, etc., to remove the floating pollutants from the water surface at an early stage, and to purify the water quality, It is possible to achieve harmony with the natural environment.

Although palm fibers are used as the plant fibers forming the vegetation base 12 in this example, other plant fibers may be used as long as they are equivalent to the plant fibers.

Although reeds are used as the aquatic plants 14 in this example, it is also possible to use water-based plants such as garlic and macomo.

The buoyant body 22 is a pipe material or an elastic material, but any material having a large buoyancy and easy to handle may be used.

[0043]

EFFECTS OF THE INVENTION According to the water purification method and the floating vegetation material by the floating vegetation material according to the present invention, the buoyant body is combined with the vegetation member formed by planting the aquatic plants on the vegetation base made of plant fibers. Immediately after being installed on the surface of a river in which floating pollutants are suspended, the well-developed root system of the aquatic plant absorbs the contaminated water in the river, and only the purified water evaporates from the pores of the aquatic plant. By the action, the pollutant can be accumulated in the plant body, the pollutant can be removed from the water surface and the water, and the water quality can be promptly purified.

Further, in the work, it is sufficient to install the floating vegetation material on the surface of the water such as a river and then move it so as to reduce the range of the floating pollutants. There is no removal work at all, and the work is extremely simple.

Further, even if the floating vegetation material is left as it is after adsorbing the floating pollutants, the water quality is purified along with the growth of the aquatic plants, and not only the influence on the natural ecosystem is minimized, It is possible to actively provide habitat for living things such as birds and achieve harmony with the natural environment.

By suspending the permeable apron on the buoyant body, uncontaminated deep water such as a river can be easily moved to the other side, and the flow of the river is not blocked. There is no adverse effect on.

Further, by attaching a weight to the lower end of the permeable apron, there is no fear that the floating vegetation material will be washed away by the flow of a river or the like.

Further, by using a pipe material or an elastic member for the buoyancy body, it is possible to improve the mobility, moldability and handleability of the buoyancy body.

[Brief description of drawings]

FIG. 1 is a front view showing a floating vegetation material according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a side view of a connecting portion of a buoyancy body.

FIG. 4 is a front view showing another example of the floating vegetation material.

FIG. 5 is a plan view of the same.

[Explanation of symbols]

 12 Vegetation base 14 Aquatic plant 16 Vegetation member 20 Root system 22 Buoyant body 24 Sealing tool 26 Permeable apron 28 Weight

Claims (12)

[Claims] 1. A method for preventing the diffusion of suspended pollutants into rivers, lakes, seas, etc., and purifying the water quality. In the vegetation base (12) made of plant fiber, an aquatic plant (14) that grows even in a drawn state. After fully growing the root system (20) of the aquatic plant (14), the vegetation member (16) obtained by planting the vegetation member is combined with the buoyant body (22) to form a floating vegetation material, To separate the water surface from each other, and to suspend suspended pollutants from the vegetation base (1
While adsorbing to 2), the aquatic plant (14) absorbs pollutants from its root system (20) and evaporates only purified water from the pores, thereby accumulating pollutants in the plant body and from the water surface and water. A water purification method using floating vegetation, which is characterized by removing pollutants and purifying water quality. 2. The method for purifying water using a floating vegetation material according to claim 1, wherein a permeable apron (26) is suspended from the buoyant body (22). 3. The water purification method using floating vegetation according to claim 2, wherein a weight (28) is attached to the lower end of the permeable apron (26). 4. The water purification method using a floating vegetation material according to claim 1, 2 or 3, wherein the buoyant body (22) is an elastic member. 5. The water purification method using a floating vegetation material according to claim 1, 2 or 3, wherein the buoyant body (22) is a pipe member. 6. The method for purifying water with a floating vegetation material according to claim 5, wherein an end of the buoyant body (22) is sealed by a sealing member (24). 7. A floating material which is disposed on the surface of a river, lake, sea or the like to prevent the diffusion of suspended pollutants, and an aquatic plant (14) which grows even in a drawn state is attached to a vegetation base (12) made of plant fiber. ) Is a vegetation member in which a root system (20) of an aquatic plant (14) is sufficiently developed and combined with a buoyancy body (22), a floating vegetation material. 8. The floating vegetation material according to claim 7, wherein a permeable apron (26) is hung on the buoyant body (22). 9. The floating vegetation material according to claim 8, wherein a weight (28) is attached to a lower end of the permeable apron (26). 10. The floating vegetation material according to claim 7, 8 or 9, wherein the buoyant body (22) is an elastic member. 11. The floating vegetation material according to claim 7, 8 or 9, wherein the buoyant body (22) is a pipe member. 12. The floating vegetation material according to claim 11, wherein an end of the buoyant body (22) is sealed by a sealing tool (24).