JPH0630673A - Proliferation reef in seaweed bed - Google Patents

Abstract

PURPOSE:To obtain a proliferation reef in a seaweed bed in which magnesium components are abundantly present. CONSTITUTION:The proliferation reef in a seaweed bed is obtained by sprinkling or embedding powder or a mass of magnesium sulfate on the surface of a reef base 1 made of concrete which is still in an unhardened state, dissolving the powder or mass of the magnesium sulfate in water in the concrete simultaneously with the hardening of the concrete, forming a surface and further forming a permeating layer 3 of the magnesium sulfate on the resultant formed surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seaweed-growing reef, and particularly to spawning and hatching of fish, shellfish, shellfish and other seafood (hereinafter simply referred to as "seafood"), and protection of its young and larvae.
The present invention relates to a seaweed-growing reef that grows a seaweed bed necessary for growing and growing and provides an environment suitable for growing seafood.

[0002]

2. Description of the Related Art In recent years, various artificial fish reefs have been developed and implemented for the protection, breeding, breeding, etc. of fishery products. It is for collecting these grown seafood to artificially construct a fishing ground, and such a fish reef is generally called a collecting fish reef.

In recent years, however, depletion of marine resources has become a problem, and 200 nautical miles has become a maritime authority, and the promotion of coastal fisheries has become an urgent task. Fish reefs for the purpose have been developed. That is, a fish reef for breeding is required and developed for the purpose of protecting and cultivating eggs of seafood, young children in a floating life and the like.

However, it is necessary to form an environment suitable for the settlement and habitation of diatoms and other feed organisms for the breeding of fish and shellfish larvae. In contrast, it must be submerged in a sea area at a depth of 5 to 15 m where natural light can be easily taken. Waves and ocean currents are rough and intense in such shallow waters, and reef fish reefs must withstand these ocean waves and ocean currents.

It is preferable in terms of economical efficiency that the fish reef body is made of concrete as a structure capable of withstanding the harsh conditions of the shallow sea. However, when the concrete structure is submerged in the sea, strong alkali (PH · 13
Degree) erupts. If this strong alkali is ejected into seawater, it will impede the settlement and growth of algae such as diatoms and green algae, or microorganisms. Therefore, there is proposed a seaweed bed breeding reef in which strong alkalis ejected from the surface of the concrete structure are neutralized and an iron content preferred by algae and seafood is present on the concrete surface (Japanese Patent Publication No. 59-3165).

[0006]

It is known that the presence of ferrous sulfate and ferric sulfate is necessary for the growth of algae,
It has already been proved that the seaweed bed reef proposed in Japanese Patent Publication No. 59-3165 has an excellent effect on the growth of algae. However, magnesium has a role as a constituent element of chlorophyll, and the plant physiological significance of magnesium is drawing attention, and it is necessary for this magnesium to be abundant even in the seaweed reefs.
Conventionally, there has been no seaweed bed reef for the purpose of artificially making such magnesium components abundantly present.

The present invention has been made in view of the above points, and an object of the present invention is to provide a seaweed-growing reef rich in magnesium components.

[0008]

Means for Solving the Problems In order to solve the above problems, according to the present invention, a surface of a concrete base is sprayed with magnesium sulfate powder or a lump is embedded while the concrete is in an uncured state, and the concrete is cured. At the same time, an infiltration layer of magnesium sulfate was formed on the surface formed by dissolving the magnesium sulfate powder or lump in water in concrete to form a seaweed bed reef.

Further, while the concrete uncured state is uncured, the magnesium sulphate powder is sprinkled or embedded on the surface of the concrete base, and the ferrous sulfate or ferric sulfate powder is sprinkled or lumped. When embedding and hardening of concrete, the magnesium sulfate powder or lump and the ferrous sulfate or ferric sulfate powder or lump are dissolved in water in the concrete to form magnesium sulfate and ferrous sulfate on the surface. Alternatively, a permeation layer of ferric iron was formed to form a seaweed bed reef.

[0010]

As described above, the seaweed bed reef of the present invention forms a seaweed bed reef rich in magnesium components by forming a magnesium sulfate permeation layer on the surface of the concrete base. Moreover, when the magnesium sulfate powder or lump dissolves in the water in the concrete, the alkali on the concrete surface in this part will be neutralized by the sulfuric acid component, and the concrete surface in this part will be a layer that does not eject strong alkali components. Become.

Further, by forming an infiltration layer of magnesium sulfate and ferrous sulfate or ferric sulfate on the surface of the concrete base, magnesium sulfate and ferrous sulfate or ferric sulfate can be formed.
It becomes a seaweed bed breeding reef that is rich in iron components. Moreover, when the powder or lump of magnesium sulfate and the powder or lump of ferrous sulfate or ferric sulfate are dissolved in the water in the concrete, the alkali on the concrete surface in this portion is neutralized by the sulfuric acid component. Part of the concrete surface is a layer that does not eject strong alkaline components.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state where a part of a concrete seaweed bed breeding reef according to an embodiment of the present invention is cut into a substantially square shape. In the figure, reference numeral 1 is a reef base made of concrete, and on the surface of the reef base, a lump of magnesium sulfate is embedded in an unhardened state of the concrete so that the concrete is hardened and A large number of recesses 2 are formed in which a lump dissolves in water in concrete to form. On the surface of this recess 2, a magnesium sulfate permeation layer 3 is formed.
Is made.

2 and 3 are partial cross-sectional views of the reef showing the manufacturing process of the seaweed-growing reef. The reef base 1 is prepared by pouring mortar into a base form (not shown) having a desired shape or structure.
To form. While the concrete of the reef base 1 is uncured, a magnesium sulfate lump 4 is embedded in at least a part or the whole of the surface as shown in FIG. 2 and cured as it is. At this stage of curing, the concrete of the reef base 1 loses water and hardens. On the other hand, the magnesium sulfate lump 4 is dissolved by the moisture from the concrete to form the recess 2 as shown in FIG. A magnesium sulfate permeation layer 3 is formed on the surface of the recess 2. The surface of the magnesium sulfate permeation layer 3 has innumerable uneven surfaces as shown in FIG.
Further, since the back surface penetrates like a root of a tree, the penetration layer 3 is not easily peeled off.

When the seaweed bed reef having the above structure is used alone or in combination with various structures and submerged in shallow sea, the concrete portion is not exposed from the inner surface of the recess 2 and the alkali ejected from the concrete is magnesium sulfate. It will be neutralized by the sulfuric acid component. Further, since magnesium has a role as a constituent element of chlorophyll and has great physiological significance in plant physiology, this recess 2 becomes a place where magnesium components having great physiological significance in plant physiology are abundant. It has a great effect on the growth of algae.

The magnesium sulfate ingot 4 is produced by pressing magnesium sulfate powder into a ginkgo nut as shown in FIG. 5 and solidifying it, and the ingot 2 is uncured by various means. By embedding it in the surface of the reef base 1 made of magnesium, the magnesium sulfate lump 4 is dissolved by the moisture from the concrete, and the recess 2 as shown in FIG. 3 is formed.
In addition, although the example in which the magnesium sulfate lump 4 is embedded is shown in the above embodiment, it is not limited to the lump, and magnesium sulfate powder may be sprinkled and pressed with a slight pressure.

Further, in the above-mentioned embodiment, an example of embedding magnesium sulfate lumps 4 on the surface of the uncured concrete reef base 1 is shown, but a powder of ferrous sulfate or ferric sulfate is shown in FIG. As shown in Fig. 3, the gingival seeds are formed, and the lumps 4 of ferrous sulfate or ferric sulfate and magnesium sulfate are embedded at an appropriate ratio to give a permeation layer of ferrous sulfate or ferric sulfate and magnesium sulfate. A large number of recesses having the are formed on the surface of the reef base 1. As a result, this reef becomes a seaweed-growing reef that is rich in iron sulfate components required for algae growth in addition to magnesium components required for algae growth.
The ferrous sulfate, ferric sulfate, and magnesium sulfate are not limited to lumps, and powders of these may be sprayed onto the surface of the uncured concrete reef base 1 and pressed.

[0017]

As described above, according to the present invention,
The following excellent effects can be obtained. (1) By forming an infiltration layer of magnesium sulfate on the surface of a concrete base, it becomes a seaweed bed reef with abundant magnesium components that play a role as a constituent element of chlorophyll. Moreover, when the magnesium sulfate powder or lump dissolves in the water in the concrete, the alkali on the concrete surface in this part will be neutralized by the sulfuric acid component, and the concrete surface in this part will be a layer that does not eject strong alkali components. Become.

(2) Further, by forming an infiltration layer of magnesium sulfate and ferrous sulfate or ferric sulfate on the surface of the concrete base, magnesium sulfate and ferrous sulfate or ferric sulfate components are abundantly present. It becomes a seaweed bed breeding reef. Moreover, when the powder or lump of magnesium sulfate and the powder or lump of ferrous sulfate or ferric sulfate are dissolved in the water in the concrete, the alkali on the concrete surface in this portion is neutralized by the sulfuric acid component. Part of the concrete surface is a layer that does not eject strong alkaline components.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state where a part of a concrete seaweed bed breeding reef according to an embodiment of the present invention is cut into a square shape.

FIG. 2 is a cross-sectional view of a reef base for explaining a process for producing a seaweed-growing reef of the present invention.

FIG. 3 is a cross-sectional view of a reef base for explaining a process of manufacturing a seaweed bed reef of the present invention.

FIG. 4 is an enlarged cross-sectional view of a recess of a seaweed bed reef of the present invention.

FIG. 5 is a diagram showing an example of a mass of magnesium sulfate.

[Explanation of symbols]

 1 Reef base 2 Recess 3 Permeation layer of magnesium sulfate 4 Mass of magnesium sulfate

Claims (2)

[Claims] 1. The surface of a concrete base is sprinkled with magnesium sulfate powder or embedded in a lump while the concrete is uncured, and the concrete is hardened,
A seaweed bed breeding reef characterized in that a magnesium sulfate permeation layer is formed on the surface formed by dissolving the magnesium sulfate powder or lump in water in concrete. 2. The surface of a concrete base is sprinkled with magnesium sulfate powder or a lump while the concrete is in an uncured state, and ferrous sulfate powder or ferric sulfate powder is sprinkled or lump. When embedding and hardening of concrete, the magnesium sulfate powder or lump and the ferrous sulfate or ferric sulfate powder or lump are dissolved in water in the concrete to form magnesium sulfate and ferrous sulfate on the surface. Or, a seaweed bed breeding reef characterized by forming an infiltrated layer of ferric iron.