JP6016046B2 - Method for producing algae growing structure - Google Patents

Description

The present invention, Ri relates to a method of manufacturing a algae growing structure, in particular, relates to the production how suitable algae growing structures growing algae in the sea.

  Generally, algae (hereinafter referred to as “algae”) such as rock laver, young cloth, and kelp are bred in rocky areas in coastal waters. In addition, certain types of algae are also cultivated.

  On the other hand, in recent years, the number of algae inhabitants has drastically decreased due to changes in the habitat environment for organisms, particularly algae, in coastal waters, and so-called firewood burning phenomena often occur in rocky shores and aquaculture facilities.

  Under such circumstances, it has been actively supporting the growth of algae in a population manner to secure various fishery resources and maintain beautiful nature.

  In order to support the growth of the algae, a concrete block is installed in the sea, and algae is inhabited on the surface of the concrete block to form an artificial algae field. For example, Patent Document 1 proposes that a concrete block incorporating a nutrient source such as nitrogen fertilizer is installed on the seabed on the surface of a flat concrete block that is a porous material. Patent Document 2 proposes a hexapod-shaped wave-dissipating concrete block in which the surface of the block is uneven so that spores and rhizomes of underwater plants can be settled.

Japanese Patent Laid-Open No. 05-308771 JP 2000-045449 A

  However, the method for installing the artificial seaweed beds using the concrete blocks disclosed in the patent documents and the like has the following problems.

  The first problem is that the nutrient sources built into the concrete blocks are limited, and when consumed for algae growth, they are depleted and cannot be maintained permanently. . Since the nutrient source is limited in this way, the algae adhere to the concrete block is limited to a period of only 3 to 5 years when the nutrient source can function after the concrete block is installed in the sea. It was a thing. Therefore, after the nutrient source by the concrete block is depleted, the installed concrete block is left in the sea as a mere remnant after that.

  The second problem is that the concrete block is formed in a large and large size in order to maintain an immovable state even when subjected to a tidal current, and therefore, the shape of the seabed that can be installed is limited. For example, it is impossible to install on a steep rocky place. Furthermore, in the flat concrete block of the said patent document 1, the seabed to install must be a planar shape. Moreover, in the hexapod concrete block of the said patent document 2, the concrete block needs to be the seabed which can be localized without rolling during an installation operation. Thus, in order to attach a concrete block, a suitable seafloor situation is required, and it was impossible to install it in all the places where installation is necessary.

  The third problem is that the area of the location that satisfies the seabed condition that enables the concrete block to be installed is smaller than the entire area of the location that needs to be installed. Therefore, it was physically impossible to improve the whole coastline. Therefore, the method using concrete blocks is limited to small-scale improvements that do not satisfy tenths of the reclaimed area of the seaweed basin as the target for improvement of burning by the local fishermen, and satisfies the fishermen's needs. Not only that, but the current situation is that we have not found a solution yet.

  The fourth problem is that the concrete block is not installed following the shape of the seabed, but is a separate structure from the shape of the seabed. is there.

  The fifth problem is that the cost is higher compared to the area where concrete blocks can be installed to contribute to the growth of algae and to contribute to the regeneration of algae beds. Specifically, the cost is high because large concrete blocks are manufactured, and a work ship equipped with large heavy machinery is required to handle heavy concrete blocks, which requires a large work style. There was a problem that the cost was very high.

  The present invention has been made in view of such problems, and can be installed following the surface of a rocky place in the sea, can be installed in the entire required area, and the nutrient source is made permanent. An algae-growing structure that can be provided in a reliable manner, can reliably realize the growth of permanent algae, is easy to manufacture, and is low in cost, and its manufacturing method It is.

  In the method for producing an algae-growing structure according to the present invention, a composition prior to hardening having at least a mineral that emits far-infrared rays, a concrete material, and an underwater non-separating agent is loaded into a predetermined region of a rock, and then the composition is added. A method for producing an algae-growing structure for producing an algae-growing structure by fixing it to the rock as a solid having the mineral at a location where it is hardened and touched by seawater, and having a scraper on the surface of a predetermined region of the rock The rough cleaned surface of the rocky area is then performed by performing a rough cleaning (keren) step of scraping off living organisms and dust that reduce the adhesion of the composition such as algae, shellfish, and garbage The surface is further cleaned by underwater sand blasting, and the adhesion between the composition and the surface is further increased, and then compressed air is supplied. A drilling machine is used to perform a step of drilling a hole for installing a fixing tool on the surface of the rocky terrain, and then the fixing to the hole is performed by a driving machine to which compressed air is supplied. Performing a step of placing a tool, and then performing a step of placing a mold for placing the composition on a predetermined region of the surface of the rocky place, and then placing the mold in the mold Performing a step of placing a composition, and then performing a step of removing the formwork from the rock after the composition placed in the form is hardened, to form a predetermined surface of the rock A solid material having a mineral that emits far-infrared rays is installed at a location where seawater touches the region.

Since the manufacturing method of the present invention is configured as described above, the composition before curing can be loaded while being deformed following the surface of the rocky field without being influenced by the surface shape of the rocky field, and the composition is cured. By doing so, a solid material having an appropriate shape can be installed. And the solid substance which has the mineral which radiates | emits far infrared rays can be easily installed in the location which seawater touches, and cost also becomes low.
Thus, since the algae-growing structure of the present invention is manufactured, the solid matter is imitated following the surface of the rocky place, and the seawater touches the mineral of the solid matter, so that infrared rays radiated from the mineral permanently are emitted. As a nutrient source, algae adheres to the solid matter and grows well. Therefore, the algae-growing structure can be installed following the surface of a rocky place in the sea, can be installed over the entire required area, can provide a permanent source of nutrients, and can be permanently installed. Can be realized reliably.

  According to the present invention, the algae-growing structure can be installed following the surface of a rocky place in the sea, can be installed in the entire area where algae is required to be grown, and a nutrient source called far-infrared radiation is a permanent source. It is possible to reliably provide permanent algae growth, and the production is simple and the cost can be reduced.

The perspective view which shows embodiment which installed the algae growth structure of this invention by placing a solid substance directly on the surface of a rocky place. The perspective view which shows embodiment which installed the algae growth structure of this invention directly in the bottom of a rocky place solid substance The perspective view which shows embodiment which installed the solid substance which manufactured the algal growth structure of this invention in advance on the surface of a rocky place The flowchart which shows the process of the manufacturing method which manufactures the algae breeding structure installed in the surface of the rocky place of this invention directly by placing the solid substance. Side view showing the operation of the three types of keren process (ST2) in FIG. The side view which shows the operation | work of 1 type keren process (ST3) of FIG. Side view showing operation of drilling step (ST4) of FIG. Side view showing work of anchor / rebar process (ST5) of FIG. Side view showing the work of the mold installation step (ST6) of FIG. Side view showing the operation of the special mortar placing step (ST7) of FIG. The flowchart which shows the process of the manufacturing method which manufactures the algae breeding structure installed in the bottom of the rocky place of this invention by placing solid directly.

  Embodiments of the present invention will be described below with reference to the drawings.

  The algae-growing structure of the present invention is a solid substance fixed on the surface of a rock, and has a feature of emitting a far-infrared ray at a location where seawater touches.

  1 to 3 show embodiments of the present invention, respectively.

  In the embodiment shown in FIG. 1, a solid material 2 is directly placed and installed on a relatively flat surface 1 a of a rocky place 1 in the sea.

  In the embodiment shown in FIG. 2, the solid material 2 is directly placed and installed on the bottom surface 1 b which is a kind of surface of the rocky place 1 in the sea.

In the embodiment shown in FIG. 3, for example, a disk-shaped solid material 2 manufactured in advance is installed on a relatively flat surface 1 a of a rocky place 1 in the sea.
1-3, the rocky place 1 includes a natural rocky place and an existing concrete block.

  In addition, the solid material 2 can be applied to any configuration as long as it has a mineral that emits far-infrared rays at a location where seawater touches. For example, the mineral may be exposed on the surface of the solid 2 or the mineral may be exposed in a portion of the porous solid 2 where seawater penetrates.

  As this mineral, it is preferable to use resources that can radiate far infrared rays such as black silica and tourmaline collected in Ueno-cho, Hokkaido.

  Furthermore, as a component of the solid material 2, for example, a composition having at least a mineral and a concrete material is preferable. The mineral is preferably, for example, in a granular or powdery size that can be dispersed. By making the component of the solid 2 into a composition, the components of the composition are mixed to easily disperse the mineral uniformly throughout the composition, and when the composition is cured, The structure which has a mineral in the surface part of the composition by which a mineral is uniformly disperse | distributed to a surface part and seawater touches is implement | achieved easily. Further, when the composition is solidified, it is often formed as a porous solid 2, and more minerals come into contact with seawater. As a result, even if the blending ratio of the mineral in the composition is as small as about 1% by weight, the mineral can be sufficiently disposed at the place where the seawater of the solid matter 2 touches, and far infrared rays are directly emitted into the seawater. be able to. Of course, you may form so that the compounding ratio of the mineral in a composition may be more than 1 weight% (for example, 20 weight%), and the amount of far infrared rays radiated | emitted in seawater may become large.

  Furthermore, it is preferable to use concrete mortar as the concrete material of this composition. By using concrete mortar, as shown in FIG. 1 and FIG. 2, the concrete mortar before hardening can be placed in the rocky place 1 in the sea, and it easily follows the shape of the surface 1a and the bottom face 1b of the rocky place 1. The solid material 2 can be deformed and installed, and the location and area of the location where the solid material 2 is installed can be freely selected and determined. Moreover, as shown in FIG. 3, the shape and magnitude | size of the solid substance 2 can be selected freely with concrete mortar, and it can manufacture in advance, and has an appropriate shape according to the shape of the surface 1a of the rocky place 1 The solid material 2 can be selected and installed. As a component of this concrete mortar, it is good to have a cement material other than the mineral which radiates | emits far infrared rays. As this cement material, it is good to form concrete mortar in an inseparable state in water, for example, cement, sand, water, air, fluidizing agent (for example, trade name: Leobuild UC-150 (manufactured by BASF Pozzolith Co., Ltd.)), An underwater non-separating agent (for example, trade name: Asuka Clean (manufactured by Shin-Etsu Chemical Co., Ltd.)), an AE water reducing agent, and the like may be set to a predetermined mixing ratio. Standard blending ratios include, for example, mineral (2.01% by weight), cement (20.89% by weight), sand (34.51% by weight), water (36.00% by weight), air (5. 50 wt%), flow agent (UC-150) (1.09 wt%), non-separating agent in water (Asuka Clean) (0.40 wt%). Hereinafter, a composition composed of a mixture of concrete mortar configured as described above and a mineral that emits far-infrared rays is referred to as “special concrete mortar”.

  In FIG. 1, in order to maintain the fixing force of the solid matter 2 on the surface 1 a of the rocky place 1, a special tool 3 before hardening is provided with a fixing tool 3 such as a reinforcing bar or an anchor bolt previously implanted on the surface 1 a. It is recommended to place concrete mortar.

  In FIG. 3, the solid material 2 may be fixed by using a fixing tool 3 such as a reinforcing bar or an anchor bolt that has been previously planted on the surface 1 a of the rocky place 1.

  In FIG. 2, the solid material 2 before being hardened is placed in the concave portion of the rocky place 1, so that the fixing tool 3 can be omitted, but the solid material 2 can be appropriately illustrated as needed to prevent cracking of the solid material 2. 1 and the fixing tool 3 similar to FIG.

  Next, the manufacturing method of the algal growth structure of this embodiment shown in FIGS. 1-3 is demonstrated.

  In the method for producing the algae-growing structure shown in FIGS. 1 and 2, the composition before hardening having at least a mineral that emits far-infrared rays and a concrete material is applied to a predetermined region (for example, the surface 1a or the bottom surface 1b) of the rocky place 1. Then, the composition is hardened and fixed to the rocky place 1 as a solid 2 having a mineral at a location where the seawater comes into contact.

  In addition, the method for producing the algae-growing structure shown in FIG. 3 includes the step of curing the composition having at least a far-infrared emitting mineral and a concrete material to form a solid material 2 having a mineral at a location where seawater formed is touched. And fixed to a predetermined area (for example, the surface 1a) of the rocky place 1.

  Furthermore, the manufacturing method of the algal growth structure of this embodiment shown in FIG. 1 will be described in detail with reference to FIGS.

  The manufacturing method of this embodiment is a method of placing the solid material 2 on the surface 1a of the existing rocky place 1, and is executed according to the manufacturing process shown in FIG.

  In the first preparation step (ST1), the work boat 4 (see FIG. 5) is loaded with base materials, materials, and the like, and heads for the rocky place 1 to be installed.

  Subsequently, in the three-type keren process (ST2), as shown in FIG. 5, the diver 7 receiving the air supply from the compressor 5 installed on the work ship 4 through the air hose 6 and the rocker with the scraper 8 1. Rough cleaning (Kellen) is performed to scrape off living organisms and garbage that reduce the adhesion of special concrete mortar such as algae, shellfish, and garbage attached to the surface 1a.

  Subsequently, in the one-type keren process (ST3), as shown in FIG. 6, the sand supplied through the sand supply hose 10 from the sand blaster 9 installed on the work boat 4 was roughly cleaned in the rocky place 1. The surface 1a is further cleaned by spraying on the surface 1a and underwater sandblasting to further increase the adhesion between the special concrete mortar and the surface 1a.

  Subsequently, in the drilling step (ST4), as shown in FIG. 7, the fixing tool 3 is attached to the surface 1a of the rocky place 1 by the rock drill 12 to which the compressed air is supplied from the compressor 5 through the compressed air supply hose 11. A hole (not shown) is provided for installing the.

  Subsequently, in the anchor / reinforcing bar process (ST5), as shown in FIG. 8, a rebar and a reinforcing bar are applied to the surface 1a of the rocky place 1 by the driving machine 13 to which compressed air is supplied from the compressor 5 through the compressed air supply hose 11. A fixing tool 3 such as an anchor bolt is placed. This fixing tool 3 improves the fixing force to the surface 1a of the special concrete mortar.

  Subsequently, in the formwork installation step (ST6), as shown in FIG. 9, a formwork 14 for placing special concrete mortar on a predetermined region of the surface 1a of the rocky place 1 is installed. The form 14 is preferably made of steel in order to keep the shape of the special concrete mortar well.

  Subsequently, in the special mortar placing step (ST7), as shown in FIG. 10, the special concrete mortar supplied from the mortar pump 15 installed on the work ship 4 through the mortar supply hose 16 is put into the mold 14. To be placed. This special concrete mortar is preferably kneaded in the material container 17 on the work boat 4 and kept in a state before curing. The compressor 5, the mortar pump 15, and the like are operated by power supply from a generator 18 installed on the work boat 4. The casting thickness of the special concrete mortar may be a thickness that can cover the surface 1a of the rocky place 1, and may be, for example, 2 to 3 cm. Since the placed special concrete mortar contains an underwater non-separation agent, the entire concrete is cured without being separated, and is gradually cured while being cured.

  Subsequently, in the mold removal step (ST7), after the special concrete mortar placed in the mold 14 is hardened, the mold 14 is removed from the rocky place 1. Thereby, the solid substance 2 which has the mineral which radiates | emits far-infrared rays in the location which seawater touches the predetermined area | region of the surface 1a of the rocky place 1 of the state shown in FIG. 1 can be installed.

  Next, the manufacturing method of the algal growth structure of this embodiment shown in FIG. 2 will be described in detail with reference to FIG.

  The manufacturing method of this embodiment is a method of placing the solid material 2 on the bottom surface 1b of the existing rocky place 1, and is executed according to the manufacturing process shown in FIG.

  In the first preparation step (ST11), the work boat 4 (see FIG. 5) is loaded with base materials, materials, and the like, and heads for the rocky place 1 to be installed.

  Subsequently, in the cleaning process (ST12), as shown in FIG. 5, the diving person 7 receiving the air supply from the compressor 5 installed on the work ship 4 through the air hose 6 has the scraper 8 to Cleaning is performed by scraping off organisms and dust that reduce the adhesion of special concrete mortars such as algae, shellfish, and garbage attached to the bottom surface 1b.

  Subsequently, in the anchor / rebar process (ST13), the same operations as those in the drilling process (ST4) and the anchor / rebar process (ST5) of FIG. The fixing tool 3 is placed. This fixing tool 3 can prevent cracking of the special concrete mortar.

  Subsequently, in the mold installation step (ST14), the mold 14 for placing the special concrete mortar is installed in a predetermined area of the bottom surface 1b of the rocky place 1, as in FIG.

  Subsequently, in the special mortar placing step (ST15), the special concrete mortar supplied from the mortar pump 15 installed on the work boat 4 through the mortar supply hose 16 is put into the mold 14 in the same manner as in FIG. To be placed. The casting thickness of the special concrete mortar may be a thickness that can cover the bottom surface 1b of the rocky place 1, and may be, for example, 2 to 3 cm. In addition, when the depth of the concave portion of the bottom surface 1b is deep, a special concrete mortar that does not contain a mineral that emits far infrared rays is placed first, and a special concrete that contains minerals that emit far infrared rays on its surface. It is recommended that mortar be placed to eliminate waste of minerals that emit far infrared rays. Since the placed special concrete mortar contains an underwater non-separation agent, the entire concrete is cured without being separated, and is gradually cured while being cured.

  Subsequently, in the mold removal step (ST16), after the special concrete mortar placed in the mold 14 is hardened, the mold 14 is removed from the rocky place 1. Thereby, the solid substance 2 which has the mineral which radiates | emits a far-infrared ray in the location which seawater touches the predetermined area | region of the bottom face 1b of the rocky place 1 of the state shown in FIG. 2 can be installed.

  Next, the manufacturing method of the algal growth structure of this embodiment shown in FIG. 3 will be described in detail.

  The manufacturing method of this embodiment is a method of installing the solid material 2 manufactured in advance on the surface 1a of the existing rocky place 1, and will be described using a manufacturing process related to FIG. 1 shown in FIG.

  In the first preparation step (ST1), the work boat 4 (see FIG. 5) is loaded with base materials, materials, and the like, and heads for the rocky place 1 to be installed. In this case, a solid material 2 having a mineral that emits far-infrared rays is mounted at a location where seawater previously produced in a disk shape, for example, contacts with a special concrete mortar. When the solid 2 is produced in advance, the underwater non-separating agent can be omitted. As a disk-shaped magnitude | size, it is good to set it as diameter 20-30cm and thickness 2-3cm, for example. Moreover, it is good also as other shapes, such as a square.

  Subsequently, in the three-type keren process (ST2), as shown in FIG. 5, the diver 7 receiving the air supply from the compressor 5 installed on the work ship 4 through the air hose 6 and the rocker with the scraper 8 1. Rough cleaning (Kellen) is performed to scrape off living organisms and garbage that reduce the adhesion of special concrete mortar such as algae, shellfish, and garbage attached to the surface 1a.

  Subsequently, in the one-type keren process (ST3), as shown in FIG. 6, the sand supplied through the sand supply hose 10 from the sand blaster 9 installed on the work boat 4 was roughly cleaned in the rocky place 1. The surface 1a is further cleaned by spraying on the surface 1a and underwater sandblasting to further increase the adhesion between the special concrete mortar and the surface 1a.

  Subsequently, in the drilling step (ST4), as shown in FIG. 7, the fixing tool 3 is attached to the surface 1a of the rocky place 1 by the rock drill 12 to which the compressed air is supplied from the compressor 5 through the compressed air supply hose 11. A hole (not shown) is provided for installing the.

  Subsequently, in the anchor / reinforcing bar process (ST5), as shown in FIG. 8, a rebar and a reinforcing bar are applied to the surface 1a of the rocky place 1 by the driving machine 13 to which compressed air is supplied from the compressor 5 through the compressed air supply hose 11. A fixing tool 3 such as an anchor bolt is placed.

  Subsequently, the solid material 2 manufactured in advance mounted on the work boat 4 is fitted into the fixture 3 and fastened to be fixed to a predetermined region of the surface 1 a of the rocky place 1. As a result, a solid material 2 that is manufactured in a disk shape in advance in a predetermined region of the surface 1a of the rocky place 1 in the state shown in FIG. 3 and has a mineral that emits far-infrared rays at locations where seawater touches. Can be installed.

  Next, the operation of each embodiment will be described.

  In the algae-growing structure of each embodiment, the solid matter 2 is fixed to the surface 1a (1b) of the rocky place 1 and has a mineral that emits far-infrared rays, for example, black silica, where seawater comes into contact with the rocky place. The solid material 2 is fixed following the surface 1a (1b) of 1 and seawater touches the mineral of the solid material 2, so that infrared rays radiated from the mineral permanently become a nutrient source to the solid material 2. Algae will adhere and grow well. Therefore, the algae-growing structure of each embodiment can be installed following the surface 1a (1b) of the rocky place 1 in the sea, can be installed over the entire required area, and the nutrient source is made permanent. It is possible to provide a permanent growth of algae. In addition, it does not change the landscape of the seabed where the rocky place 1 is located.

More specifically, black silica contains about 3 to 5% carbon and about 1% iron component in addition to ordinary rock components. In particular, a highly reactive iron ion (Fe ²⁺ ) changes to release electrons and promote various actions of the electrons. Moreover, the stable iron ion (Fe ³⁺ ) once generated by the reaction reacts with the sulfur component (S) in the black silica, receives electrons when the sulfate ion is generated, and again has a highly reactive iron ion (Fe ²⁺ ). As a result of the quantification of iron ions before and after the confirmation experiment, there was no significant change in the ratio of Fe ²⁺ and Fe ³⁺ . As a result, the reaction proceeds repeatedly, and the effect of black silica is exhibited anti-permanently.

  Further, if the solid 2 is a composition having at least a mineral (black silica) and a concrete material, the solid 2 can be easily formed by a composition having at least a mineral (black silica) and a concrete material. A solid material having a mineral (black silica) that emits far-infrared rays at a location where seawater touches can be obtained.

  Moreover, as shown in FIG. 1 and FIG. 2, the special concrete mortar before hardening is loaded into the predetermined area (1a, 1b) of the rocky place 1, and then the special concrete mortar is hardened and fixed to the rocky place 1 as the solid matter 2. Therefore, the special concrete mortar before hardening can be loaded while being deformed following the surface 1a (1b) of the rocky place 1 without being influenced by the shape of the surface 1a (1b) of the rocky place 1. The solid material 2 having an appropriate shape can be installed by curing. And the solid substance 2 which has the mineral (black silica) which radiates | emits far infrared rays can be easily installed in the location which seawater touches. And the solid substance 2 which has the mineral (black silica) which radiates | emits far infrared rays can be easily installed in the location which seawater touches, and cost also becomes low.

  Also, as shown in FIG. 3, the solid material 2 formed by curing the special concrete mortar is fixed to the predetermined areas (1a, 1b) of the rocky place 1, so that it is easily formed with the special concrete mortar in advance. The solid material 2 having a mineral (black silica) that radiates far infrared rays can be installed at the location where the seawater touches the surface of the rock 1 in accordance with the shape of the surface 1a (1b) of the rocky place 1, and the cost is also low.

  Furthermore, according to the manufacturing method of each embodiment, the steps of the manufacturing method can be variously changed as necessary, which can contribute to the creation of a new business model.

  Further, the cost aspect will be further explained. The rocky place 1 as a reclaimed place as a seaweed place where firewood is burnt is a place close to 5 to 30 meters from the land, not the work from the work boat 4, Sand can be supplied from a sand blaster 9 installed on land to carry out the underwater sand blasting method. Therefore, compared to the conventional seabed installation of concrete blocks, the seaweed bed regeneration area enabled by the same cost is several times or more. Moreover, from the viewpoint of construction style, the unit cost per tsubo is cheaper as the seaweed reclaimed area becomes larger.

  In addition, regarding the installation location and scale, the algae-growing structure of each embodiment can be installed in the entire required area as described above. It can be easily installed at any place and any scale that is required. Thus, although it has been installed with a large budget so far, it can be regenerated as a seaweed basin by applying the present invention to a concrete block that has been debris in just a few years.

  Next, the effect about each embodiment shown in FIGS. 1-3 was experimented.

1 About special concrete mortar As special concrete mortar, the same mineral (black silica) (2.01% by weight), cement (20.89% by weight), sand (34.51% by weight), Water (36.00% by weight), air (5.50% by weight), flow agent (UC-150) (1.09% by weight), underwater non-separating agent (Asuka Clean) (0.40% by weight) are used. It was. The particle size of the mineral (black silica) was the same as that of cement and sand.

2 Installation location Seabed in the sea area of Hamamushi-ku, Ishikari-shi, Hokkaido

3 Installation time Late August 2010

4. Installation Configuration (1) In the configuration of FIG. 1, three solids 2 having a diameter of about 50 cm and a thickness of 3 cm were installed on the surface 1a of the rocky place 1.
(2) With respect to the configuration of FIG. 2, three solid bodies 2 having a size of 150 × 100 cm and a thickness of 3 cm were installed on the bottom surface 1 b of the rocky place 1.
(3) About the structure of FIG. 3, the solid substance 2 about 30 cm in diameter and 3 cm in thickness was installed in the surface 1a of the rocky place 1 in one place.

5 Follow-up observation (observation of algae reproduction)
In late April 2011, 8 months after the installation time, the algae breeding status was observed for each of the three types of installation configurations.
As a result of the observation, a total of 9 types of solid matter 2 related to 3 types of installation configurations, each having a plurality of types of algae (rock laver, young shoots, blue seaweed, kelp, etc.) attached to a number of locations, each having a size of 2 to 20 cm It was growing up.

  From this result, it was found that algae can be reliably grown on the rocky place 1 according to the present invention.

  As a result, according to the present invention, the algae-growing structure can be installed following the surface of the rocky place 1 in the sea, can be installed in the entire region where algae is required to grow, and far from the black silica. It was found that the nutrient source of infrared rays can be provided permanently, so that permanent algae growth can be reliably realized, the manufacture is simple, and the cost can be reduced.

  The present invention is not limited to the above-described embodiments and examples, and can be modified as necessary.

DESCRIPTION OF SYMBOLS 1 Rocky place 1a Surface 1b Bottom surface 2 Solid matter 3 Fixing tool 4 Work ship 7 Diver 8 Scraper 9 Sandblaster 12 Rock drill 13 Placing machine 14 Formwork 15 Mortar pump 17 Material container

Claims (1)

A solid composition having at least a mineral that emits far-infrared rays, a concrete material, and an underwater non-separating agent is loaded into a predetermined region of a rocky place, and then the composition is cured and the solid having the mineral at a place where seawater touches. A method for producing an algae-growing structure that produces an algae-growing structure by fixing it to the rock as an object,
Performing a rough cleaning (keren) to scrape off living organisms and garbage that reduce the adhesion of the composition such as algae, shellfish, and garbage attached to the surface of the predetermined area of the rocky place with a scraper,
Next, spraying sand on the rough cleaned surface of the rocky place, further cleaning the surface by underwater sand blasting, and further increasing the adhesion between the composition and the surface,
Next, a step of drilling a hole for installing a fixing tool on the surface of the rocky place by a rock drill supplied with compressed air,
Next, a step of driving the fixing tool into the hole by a driving machine to which compressed air is supplied is performed,
Next, performing a step of installing a form for placing the composition on a predetermined region of the surface of the rocky place,
Next, performing the step of placing the composition in the mold,
Next, after the composition placed in the mold is cured, a step of removing the mold from the rocky place is performed, and far-infrared rays are applied to a place where seawater touches a predetermined region of the surface of the rocky place. A method for producing an algae-growing structure comprising installing a solid material having a radiating mineral.

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