JPH1028990A - Water cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To harmonize the water cleaner with ambient environment and to conveniently set up the by suspending a porous material from a floating body comprising a vegetation layer and a float to constitute the cleaner. SOLUTION: A floating body 1 is composed of a vegetation bed 2 and a float 3, and a porous material 4 is suspended therefrom the form a water cleaner. The floating body 1 is floated on the water, the vegetation bed 2 is positioned on the water surface side, the bed 2 can be formed on the float 3, or the float 3 is arranged in the bed 2. A fibrous material comprising an org. fiber such as a palm fiber, a nonwoven fabric, a reticular structure, an open-cell foamed resin, an inorg. porous body and their combination are utilized as the vegetation bed 2. The seeds of such plants as a ditch reed and a cogon are preferably mixed. The cleaner is anchored, floated at a desired position and set. Further, plants are grown on the bed 2 to harmonize the appearance of the with ambient environment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to rivers, lakes, marshes, ponds,
The present invention relates to a water purification body useful for purifying water quality of dams and preserving the natural environment.

[0002]

2. Description of the Related Art Conventionally, a porous material such as a nonwoven fabric, a string, a woven fabric, a knitted fabric or a net has been wound, joined, or filled with a support such as a lattice-like structure, a cage-like structure, or a box-like structure. A water purification body arranged by rubbing is known. These water purifiers contain bacteria in water,
By attaching and growing organisms such as alga,
Water can be purified using the living activity of the living thing, or water can be purified using the contact filtration action of the porous material.

However, in the above-mentioned water purifier, the work of installing a support in a river, lake, marsh, pond, dam, or the like is complicated, and when the artificial body such as the support or porous material is seen, the view is spoiled. There was a problem that it was difficult to harmonize with the natural environment.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art, and it is an object of the present invention to provide a water purifier which is in harmony with the natural environment and can be easily installed. Make it an issue.

[0005]

According to the present invention, there is provided a water purification body characterized in that a porous material is suspended from a floating body comprising a vegetation layer and a float. Can be.

That is, in the water purification body of the present invention, since the porous material is hung on the floating body, the water purification body is simply floated on a lake, a pond, a dam, or the like, or an anchor is attached to the water purification body to obtain a predetermined water purification body. It can be easily installed simply by being floated at a position, and an excellent water purification function using a porous material can be expected at a desired position such as a lake, a pond or a dam. In addition, the water purification body of the present invention does not impair the landscape by growing plants in the vegetation layer of the floating body, and furthermore, insects,
It can provide a habitat for birds and small animals, and a spawning place for fish and small animals, and is in harmony with the natural environment.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional model diagram showing an example of the water purifier of the present invention, FIG. 2 is a cross-sectional model diagram showing another example of the water purifier of the present invention, and FIG. It is explanatory drawing which shows the method of connecting and using a plurality.

The water purifier of the present invention has a structure in which a porous material 4 is suspended from a floating body 1 comprising a vegetation layer 2 and a float 3.

The floating body 1 is composed of a vegetation layer 2 and a float 3 and floats on water, provided that there is a vegetation layer on the water surface side.
The vegetation layer 2 may be formed on the float 3 as shown in FIG. 1, or the float 3 may be arranged inside the vegetation layer 2 as shown in FIG.

As the vegetation layer 2, a fibrous material made of organic fibers such as palm fibers and wood fibers, a nonwoven fabric, a network structure, an open-cell resin foam, an inorganic porous material, or a combination thereof can be used. It is desirable that seeds of plants such as reeds, reeds, kaya, and mayu are mixed. Further, in order to measure the stability of the shape, a net, a woven fabric, a nonwoven fabric, or the like may be provided around the vegetation layer or the vegetation layer and the float to reinforce the vegetation layer.

As the float 3, a resin foam, an inorganic foam, FRP, light wood, or the like, or a resin molded article having a space therein, a wood material, an inorganic molded article, or the like is suitable. The size and shape of the float are not particularly limited,
It is necessary to provide sufficient buoyancy to float the water purification body on the water, and in particular, it is desirable to provide buoyancy such that the surface of the vegetation layer comes out above the water surface.

A porous material 4 is suspended from the floating body 1 directly or via a connecting member such as a thread, a string, or a clip. The porous material is desirably long, and the length is determined in consideration of the depth of the water area to be used, and is usually 0.3 to 5 m, more preferably 0.5 to 3 m. Things are suitable.

The number of the porous materials 4 suspended on the floating body 1 is appropriately determined according to the size of the floating body, but is preferably 15 to 100, more preferably 20 per m ^{2 of} the floating body.
It is desirable that ~ 60 are attached. If the number of the porous materials is less than the above range, a sufficient water purification effect cannot be obtained, while if the number is larger than the above range, the water purification effect is not improved, but rather impedes water flow. There is a risk.

The porous material 4 is not particularly limited as long as it has an internal space through which water can pass, and examples thereof include non-woven fabric, knitted fabric, woven fabric, braid, net, continuous foam, and inorganic porous material. is there. Among them, a nonwoven fabric having a structure in which fibers are three-dimensionally arranged is preferable because the opportunity for contact with water can be increased. In particular, non-woven fabrics containing heat-adhesive fibers can be formed into a three-dimensional shape by forming a seal portion between the non-woven fabrics and heat-bonding them, thereby increasing the water permeability and increasing the contact area with water. It is good because it can be increased. For example, as disclosed in JP-A-6-212544, a plurality of long nonwoven fabrics are stacked,
A three-dimensional nonwoven fabric obtained by forming a linear seal portion such as a continuous line, a dashed line, and a dotted line along a longitudinal center line has a cross-sectional shape in which the nonwoven fabric extends radially around the seal portion. This is particularly advantageous because a space is formed between the contact with water and the growth of attached organisms.

[0015] The heat-adhesive fibers contained in the nonwoven fabric include:
Polyethylene fiber such as polyethylene fiber and polypropylene fiber, polyester fiber, polyamide fiber, polyvinylidene chloride fiber, acrylic fiber, ethylene-vinyl alcohol copolymer fiber, etc., or polyethylene / polypropylene, low melting point polyester / polyester, Composite fibers made of two or more resins having different melting points such as low melting point polyamide / polyamide are used.

It is desirable that these heat-adhesive fibers are contained at least 10% by weight or more, more preferably 20% by weight or more, in the constituent fibers of the nonwoven fabric. When the amount of the heat-adhesive fiber is less than 10% by weight, the bonding strength between the nonwoven fabrics by the seal portion is insufficient. As the fibers other than the heat-adhesive fibers contained in the nonwoven fabric, fibers having a melting point higher than the adhesive component of the heat-adhesive fibers by at least 20 ° C. or fibers such as rayon and cotton having substantially no melting point can be used.

The nonwoven fabric used in the present invention is not particularly limited, and conventionally used nonwoven fabrics such as a dry nonwoven fabric, a wet nonwoven fabric and a spunbonded nonwoven fabric can be used. A nonwoven fabric in which fibers are mechanically entangled, a nonwoven fabric in which fiber intersections are bonded by heat bonding, and the like are suitable, and the opening diameter thereof is desirably 10 μm to 2000 μm.

The water purifier according to the present invention comprises a lake and a marsh,
It may be installed in the water area to be treated, such as a pond or a dam.
A plurality of water purifiers may be connected to each other by the connecting means 5 as shown in FIG. In this way, a water purification body having a desired size can be formed in accordance with the shape and landscape of the water area to be treated.

The water purifier of the present invention may be connected to an anchor or a mooring tool, and by using these, the water purifier can be floated at a desired position in the water area to be treated.

Further, an aeration device may be provided below the water purification body of the present invention. By feeding air by the aeration device, the water purification effect of the porous material can be improved and the activity of the vegetation layer can be improved. It becomes possible.

[0021]

EXAMPLE 50% by weight of a polyester fiber having a fineness of 30 denier and a core-sheath type composite fiber having a fineness of 15 denier (sheath: melting point: 1)
A fibrous web composed of 50% by weight of a low-melting polyester of 40 ° C., core: polyethylene terephthalate) was heated at 140 ° C. by a drier to have a thickness of 7 mm and a basis weight of 2
40 g / m ² fiber-bonded nonwoven fabric (average opening diameter of about 200 μm)
m). This non-woven fabric is 8cm wide x 100c long
After laminating five pieces cut to the size of m, a 5 mm wide dashed seal part parallel to the length direction and passing through the center in the width direction is formed by ultrasonic sealing, and the five nonwoven fabrics are joined. A columnar porous material was obtained.

On the other hand, a float made of foamed resin having a length of 2 m, a width of 3 m and a thickness of 0.25 m is provided inside, a vegetation layer made of palm fibers is formed so as to be increased around, especially at the top, and the outer periphery is made of nonwoven fabric. A floating body having a length of 2.1 m, a width of 3.1 m and a height of 0.35 m was formed by covering. In addition, the seed of the mayo was mixed in the water surface side part of the vegetation layer. In this floating body,
The above-mentioned cylindrical porous material is placed at intervals of 20 cm in length and width at a distance of 15 cm.
No water purification body was prepared by hanging zero.

The obtained water purification body is vertically connected by connecting means.
3 pieces × 3 pieces were connected, and 3 sets of the connected pieces were connected, floated on a pond of about 2000 m ³ , and fixed by anchors. Further, an aeration device was provided below the connected water purification body to perform aeration. About two months after installation, a microbial membrane was formed on the entire surface of each porous material, and COD in water was measured.
While it was 16.2 mg / l before installation of the water purification body, it was greatly reduced to 6.5 mg / l (removal rate about 60%) after installation, and a favorable water purification effect was recognized. Also,
Approximately five months after the installation, the mayum grew on the vegetation layer, and the appearance became harmonious with the natural environment.

[0024]

According to the water purifier of the present invention, since the porous material is suspended from the floating body, the water purifier can be floated only on a lake, a pond, a dam, or the like, or an anchor can be attached to the water purifier for a predetermined time. It can be easily installed simply by being floated at a position, and an excellent water purification function using a porous material can be expected at a desired position such as a lake, a pond or a dam. In addition, the water purification body of the present invention can provide a habitat for insects, birds, small animals and fish and a spawning place for small animals without damaging the landscape by growing plants on the vegetation layer of the floating body. Harmony with the environment.

In particular, when a non-woven fabric containing two or more thermo-adhesive fibers is used as a porous material and formed into a three-dimensional shape by bonding with a linear seal portion, microorganisms and fine dust adhere. Easy to be clogged even if microorganisms grow or dust is collected, and the contact area with the treated water is large, and the water permeability between the non-woven fabrics is high, so that the water purification effect is excellent. .

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an example of a water purification body of the present invention.

FIG. 2 is a schematic sectional view showing another example of the water purification body of the present invention.

FIG. 3 is an explanatory view showing a method of connecting and using a water purification body of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Floating body 2 ... Vegetation 3 ... Float 4 ... Porous material

Claims (6)

[Claims] 1. A floating body comprising a vegetation layer and a float,
A water purification body, wherein a porous material is suspended. 2. The water purification body according to claim 1, wherein the floating body has a vegetation layer disposed on a float. 3. The water purifier according to claim 1, wherein the floating body has a float disposed inside the vegetation layer. 4. The water purification body according to claim 1, wherein the porous material is made of a long fibrous material. 5. The water purification body according to claim 1, wherein the porous material is formed of a three-dimensional nonwoven fabric in which two or more nonwoven fabrics are joined by a linear sealing portion in a longitudinal direction. 6. The water purification body according to claim 1, wherein the floating body is connected to an anchor.