JP2011155853A - Greening member and greening method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member for performing greening on the sea which utilizes the sea occupying 70% of the area of the earth; and to provide a greening method. <P>SOLUTION: The greening member can be floated on the water with its bottom surface getting in touch with the water surface, and allows plants to be placed on its top surface. The greening member is provided with a buoyant cover layer, a reverse osmosis membrane layer through which seawater is changed into fresh water, a water-holding layer which holds the fresh water, and a cover layer on which the plants are placed, sequentially from below. The greening method for water surfaces includes: a process for floating the greening member on the water with its bottom surface of the greening member getting in touch with the water surface; and a process for placing plants on the top surface of the greening member. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a greening member and a greening method capable of installing floating plants on the surface of the water, and more particularly to a greening member and a greening method for greening the ocean occupying 70% of the earth. It is.

  Currently, both domestic and overseas interest in global warming issues is increasing. Among them, the deserts on the earth are expanding year by year, and the forests on the earth are decreasing year by year. These are serious problems. Under such circumstances, tree planting and other greening operations are being carried out around the world.

Japanese Patent Laid-Open No. 3-119926 Japanese Patent Application Laid-Open No. 10-13136

  About 70% of the earth's area is the sea, and the remaining 30% is land. However, the greening work so far has been carried out on the soil and has never been carried out on the sea. Therefore. This application makes it a subject to provide the member and greening method for making effective use of the sea which occupies the area of 70% of the earth, and performing greening on the sea.

  In order to solve the above-mentioned problems, the invention described in claim 1 is a greening member that can be floated on the water surface by bringing the lower surface into contact with the water surface and capable of installing a plant on the upper surface.

  The invention according to claim 2 is the greening member according to claim 1, wherein the greening member includes a reverse osmosis membrane layer capable of turning seawater into fresh water.

  The invention according to claim 3 is the greening member according to claim 1 or 2, wherein the greening member includes a water retention layer.

  The invention according to claim 4 comprises, from the lower surface side, a cover layer having buoyancy, a reverse osmosis membrane layer that turns seawater into fresh water, a water retention layer that holds the fresh water, and a cover layer that installs plants. It was set as the greening member.

  The invention according to claim 5 is a reverse osmosis membrane in which the lower surface is brought into contact with the water surface and floated on the water surface, and further, a plant can be installed on the upper surface. A greening member comprising a layer, a water retaining layer for holding fresh water, and a cover layer for installing plants in that order.

  The invention according to claim 6 comprises: a step of bringing a lower surface of the greening member into contact with the water surface, and floating the greening member on the water surface; and a step of installing a plant on the upper surface of the greening member. It was a method.

  The invention according to claim 7 is the greening method according to claim 6, wherein the greening member includes a reverse osmosis membrane layer capable of turning seawater into fresh water.

  The invention according to claim 8 is the greening method according to claim 7, wherein the greening member includes a water retention layer.

  The invention according to claim 9 is the greening method according to any one of claims 6 to 8, wherein the greening member includes a buoyant material.

  By floating the greening member of the present invention on the water surface and installing a plant, the water surface can be easily greened. In particular, it becomes possible to green the sea surface that occupies 70% of the earth's area.

FIG. 1 is an explanatory view of a greening method using a greening member of the present invention. FIG. 2 is an example of a cross-sectional configuration diagram of the greening member of the present invention.

  An explanatory view of the greening method using the greening member of the present invention is shown in FIG.

  The greening member 1 of the present invention is floated on the water surface 3 with the lower surface in contact with the water surface 3. And in the greening member, the plant 2 is installed on the upper surface. The greening member 1 of the present invention can float on the sea surface, lake surface, river (river) surface or the like as the water surface 3. Among them, by providing the greening member of the present invention on the sea surface, plants can be planted on the sea, which occupies 70% of the earth, and the sea surface can be effectively used as a measure against global warming.

  In the greening member of the present invention, the surface on the side in contact with the water surface is the lower surface, while the surface on the side where the plant is placed is the upper surface of the greening member.

  Moreover, a planting plant is installed on the upper surface of the greening member of the present invention. The plant placed on the upper surface may be in the form of seeds or in a seedling state. The plant installed on the surface can absorb moisture from the lower surface of the greening member and grow.

  FIG. 2 shows an example of a cross-sectional configuration diagram of the greening member 1 of the present invention.

  In the greening member 1 of the present invention, the greening member preferably includes a reverse osmosis membrane layer 12 capable of turning seawater into fresh water. By providing the reverse osmosis membrane layer 12, fresh water can be supplied to the plant provided on the upper surface when the greening member of the present invention is provided on the sea surface.

  A reverse osmosis membrane is a membrane having the property of passing water and preventing impurities other than water, such as ions and salts. The pore size of the reverse osmosis membrane is approximately 2 nm. By using this reverse osmosis membrane, seawater entering from the lower surface can be made fresh water.

  As the material of the reverse osmosis membrane, cellulose acetate, crosslinked polyamide, aromatic polyamide, crosslinked wholly aromatic polyamide, polyamic acid, polyimide, polyamide hydrazide, polyimidazolone, polysulfonamide, polybenzimidazole, polyarylene oxide, polyvinyl alcohol, Polysulfone or the like can be used.

  In the greening member 1 of the present invention, an ion exchange resin can be used instead of the reverse osmosis membrane. It is also possible to use a reverse osmosis membrane and an ion exchange resin in combination.

  Moreover, in the greening sheet 1 of this invention, it is preferable to provide the water retention layer 13. By providing the water retention layer 13 on the greening member 1, fresh water generated by the reverse osmosis membrane can be retained, and the growth of the plant installed on the upper surface can be promoted. The water retention layer 13 is preferably provided on the upper surface side of the reverse osmosis membrane layer 12 as shown in FIG.

  Specifically, hydrophilic fibers can be used as the water retention layer 13. Specifically, as a cloth containing fibers having hydrophilicity, hydrophilic fibers such as natural fibers such as cotton and linen, cellulosic fibers such as rayon and staple fibers, vinylon fibers, acrylic fibers, and polyester fibers are used. The fiber it has can be used. In forming a water retention layer with fibers, a solution containing fibers can be applied and formed. Moreover, a well-known porous material can also be used. Moreover, hydrophilic gels, such as a polyvinyl alcohol gel and a polyacrylamide gel, can also be used as a water retention layer.

Moreover, in the greening sheet 1 of this invention, it is preferable to provide the buoyancy thing 11. FIG.
By floating a buoyant material on the greening sheet, the greening sheet can be prevented from sinking in water (underwater). Here, as the buoyancy material, a foamed member such as foamed polystyrene, a member containing air inside a floating ring, or a known plastic material having a low specific gravity can be used. For example, the buoyancy material can be provided on the lower surface of the reverse osmosis membrane layer as shown in FIG. Moreover, you may provide a buoyancy thing in the side part of the greening member 1. FIG.

  In the greening member of the present invention, if the greening member can obtain sufficient buoyancy on the water surface (sea surface) without providing a buoyancy material, the buoyancy material may not be provided.

  Moreover, you may provide the cover layer 14 on the upper surface of the greening member 1 of this invention. You may provide a cover layer in parts other than installing a plant with the cover layer 14. FIG.

  As the plant 2 planted in the greening member of the present invention, a known plant can be used. In particular, as a plant planted in the greening member of the present invention, mangrove and moss resistant to seawater can be suitably used. Moreover, you may install the agricultural crop used as food as a plant.

  As shown in FIG. 2, the greening member 1 of the present invention includes a buoyant material 11, a reverse osmosis membrane layer 12 that turns seawater into fresh water, a water retention layer 13 that holds the fresh water, and a cover layer on which plants are installed. 14 is preferable.

  The greening member of the present invention may be in the form of a sheet or plate. For example, in this invention, it can be set as the greening member which consists of a lamination sheet which laminated | stacked the reverse osmosis membrane layer and the water retention sheet | seat. Moreover, it can be set as the plate-shaped greening member which bonded the reverse osmosis membrane layer on the one surface of the water retention block. Moreover, a frame can also be provided on the side surface of the greening sheet.

  Further, the greening member of the present invention may include other configurations. For example, it is possible to install a drain outlet that prevents the greening member from sinking into the water due to water intrusion from the side of the greening member or rainwater intrusion. Further, instead of planting the plant directly on the water retention layer, a new plant installation layer may be provided separately and the plant may be installed on the plant installation layer. Moreover, you may provide the cover which covers the whole plant.

  Next, the greening method of the present invention will be described.

  The greening method of the present invention comprises a step of bringing the lower surface of the greening member into contact with the water surface and floating the greening member on the water surface, and a step of installing a plant on the upper surface of the greening member. At this time, the plant may be installed on the upper surface of the greening member after the greening member is floated on the water surface, or the greening member may be floated on the water surface after the plant is previously installed on the upper surface of the greening member. In the greening method of the present invention, water for growing plants is replenished from seawater, so that it is possible to install plants on the water surface without trouble.

A polyvinyl alcohol solution was applied to one surface of a reverse osmosis membrane made of cellulose acetate cut into 20 cm square, and a water retention layer made of polyvinyl alcohol gel was formed on the reverse osmosis membrane. Furthermore, a buoyancy material made of foamed polystyrene was attached to the peripheral portion of the reverse osmosis membrane, and a greening member comprising a reverse osmosis membrane, a water retention layer, and a buoyancy material was created.
Next, seeds of radish radish were planted on the surface of the water retention layer of the obtained greening member. The seeded greening member was floated in a water tank containing 3.5% salinity water.
Three days later, it was confirmed that the seeds of radish radish were germinated on the water retention layer of the greening member.
From the above, it was confirmed that the greening member of the present invention is effective for greening the sea surface.

  In the greening member / greening method of the present invention, the sea that occupies 70% of the earth is effectively utilized, and the sea is greened to create a “green road”. The greening member / greening method of the present invention helps to prevent global warming. In addition, it is considered that planting agricultural crops as food on the greening member of the present invention helps to solve the food shortage.

1 Greening member 2 Plant 3 Water surface (sea surface)
3 'Underwater (underwater)
11 Buoyant object 12 Reverse osmosis membrane 13 Water retention layer 14 Cover

Claims (9)

  A greening member that can be floated on the water surface by bringing the lower surface into contact with the water surface and capable of installing a plant on the upper surface.   The greening member according to claim 1, further comprising a reverse osmosis membrane layer capable of turning seawater into fresh water.   The greening member according to claim 1, wherein the greening member includes a water retention layer.   The said greening member is provided with a buoyancy thing, The greening member in any one of Claim 1 thru | or 3 characterized by the above-mentioned. It is possible to place the plant on the upper surface by bringing the lower surface into contact with the water surface and floating on the water surface.
From the lower surface side,
Buoyancy,
Reverse osmosis membrane layer that turns seawater into fresh water,
A water retention layer for retaining the fresh water,
A greening member comprising a cover layer on which plants are placed in order. Contacting the bottom surface of the greening member with the water surface and floating the greening member on the water surface;
And a step of installing a plant on the upper surface of the greening member.   The greening method according to claim 6, wherein the greening member includes a reverse osmosis membrane layer capable of turning seawater into fresh water.   The greening method according to claim 6, wherein the greening member includes a water retention layer. The greening method according to claim 6, wherein the greening member includes a buoyant material.

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