JPH02152914A - Sea weed-proliferation powder and its use - Google Patents

Abstract

PURPOSE:To obtain an easy-to-handle powder for proliferation of sea weeds by drying a mixture of a colloidal solution of a hydration heat-lost inorganic powder in water with a liquid mainly containing ferrous sulfate. CONSTITUTION:An inorganic powder without hydration heat, for example, a powder of concrete or hardened cement is mixed with water to give a colloidal liquid. Then, the liquid is combined with a liquid containing ferrous sulfate as a major component to adsorb and impregnate the powder with ferrous sulfate. The mixture is dried to evaporate off water to give the subject powder of fine particle sizes. The liquid containing ferrous sulfate as a major component contains, in addition, at least one of S, K, Mg, C, N, P, Mn, Cu, Zn, Mo, Cl, The product is mixed with water and a concrete penetrant solution and the mixture is coated on the surfaces of concrete structures.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applied to the surface of structures such as concrete wave-dissipating blocks, breakwaters, and jetties, which are submerged on the coast or in the sea, and from the surface of the structure. The present invention relates to a powder for growing seaweed beds that neutralizes strong alkaline components that are ejected and allows the presence of iron oxide, which is essential for the survival of algae, on the surfaces of these structures.

[Conventional technology]

Now that 200 nautical miles has been realized as maritime rights, the promotion of coastal fisheries has become an urgent task. To promote coastal fisheries, it is necessary to create a good habitat suitable for fish and shellfish. To this end, it is natural that we must increase the number of good seaweed beds that serve as feeding grounds for fish and shellfish. However, in recent years, concrete structures are often being sunk into the sea due to coastal land reclamation, reclamation, construction of breakwaters and jetties, and wave breakage works such as sinking of wave-dissipating blocks. This is becoming a serious problem as seaweed beds are disappearing or decreasing in size. There are various reasons why the seaweed beds are destroyed by sinking such concrete structures into the sea, but strong alkaline components (ph, 13 ) is also the main cause. In other words, when strong alkaline components erupt into seawater, diatoms,
It becomes a hindrance to the settlement and growth of green algae, brown algae, red algae, or microorganisms, and these algae or microorganisms die. When the algae die, algae called so-called knotted lime rings breed, and the surface is covered with these knotted lime rings.
The above-mentioned algae will adhere and become an environment in which they cannot live.

In addition, in recent years, research papers have been published suggesting that iron oxide is essential for the survival of algae and seafood. For example, according to 'Photo' (published on April 15, 1981, published by Jiji Gahosha), there are ultrafine particles of iron oxide in the bodies of certain aquatic bacteria, which act as a compass. It has been announced that the Furthermore, the fact that many algae and fish and shellfish live in areas with high iron oxide content has been proven by the presence of large numbers of fish and shellfish in sunken ships and abandoned ships in the ocean.

Therefore, in order to prevent the various concrete structures sunk into the sea from destroying the seaweed beds and to make the concrete structures themselves good seaweed beds, it is necessary to prevent the alkali erupting from the concrete structures sunk into the sea. In addition to neutralizing the components, it is necessary to have iron oxide, which is essential for the habitat of algae and seafood, present on the surface of the structure.

By the way, the present applicant has previously applied for a technology for neutralizing alkaline components ejected into the sea from the surface of a concrete structure and making the concrete structure itself a good seaweed bed.

It concerns a solvent for growing seaweed beds (patent application filed in 1983).
-086676, Japanese Patent Application No. 58-172231, and Japanese Patent Application No. 58-227066).

Among these solvents for growing seaweed beds, for example, Japanese Patent Application No. 58-0866
The seaweed bed growth solvent of No. 76 is made by dissolving ferrous sulfate or ferric sulfate in an aqueous solution of a concrete penetrating agent whose main components are a water-soluble resin and a surfactant.

When the seaweed bed propagation solvent configured in this way is applied to the surface of a wave-dissipating block or the like submerged in the sea, a permeable layer of a resin agent containing a component of ferrous sulfate or ferric sulfate is formed on the surface, Alkaline components are no longer ejected from the surface of the concrete structure, and an environment in which iron components, which fish and shellfish and algae like, exist semi-permanently can be maintained on the surface of the concrete structure.

[Problem to be solved by the invention]

However, since all of the conventional solvents for seaweed bed propagation mentioned above are liquids, they are heavy and the solvent tends to leak from inside if the container topples, making transportation expensive. Ta. This problem becomes particularly serious when the solvent for propagating seaweed beds is transported to a remote location, for example, overseas.

The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a powder for propagating seaweed beds that is easy to transport and handle, and a method for using the same.

[Means to solve the problem]

In order to solve the above problems, the present invention uses powder for growing seaweed beds,
A colloidal liquid made by mixing inorganic powder that has lost its heat utilization with water was mixed with a liquid containing ferrous sulfate as a main component, and the mixed liquid was dried.

The present invention also provides a method for using the powder for growing a seaweed bed, which includes mixing the powder for growing a seaweed bed with water and an aqueous solution of a concrete penetrating agent whose main components are a water-soluble resin and a surfactant. The mixed solution was configured to be applied to the surface of a concrete structure to be placed on the coast or in the sea.

[Effect]

By configuring the powder for seaweed bed propagation and its method of use as described above, the weight is considerably lighter than in the case of liquid, making it easy to carry and handle, making it extremely easy to transport. In particular, when transporting this powder for seaweed bed propagation to a remote location, such as overseas, transportation costs can be significantly reduced.

In addition, when using this powder for growing a seaweed bed, simply mix the powder for growing a seaweed bed with water and an aqueous solution of a concrete penetrant, and then apply the mixed solution to the surface of the concrete structure. Well, the task is easy.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is a diagram showing an outline of the manufacturing process of a powder for growing a seaweed bed according to the present invention.

As shown in the figure, first, fine grain size (e.g. 0.2 μm
) Prepare the powder. The material used for this powder is an inorganic powder such as concrete or hardened cement that has once hardened and lost its heat of hydration. By crushing and pulverizing this inorganic powder, the above-mentioned powder is completed.

The reason why we use an inorganic powder that has lost its heat of hydration as a powder is that if we use an inorganic powder that has not lost its heat of hydration, the inorganic powder that has lost its heat of hydration will be This is because the powder will solidify.

Water is then poured into this powder and mixed to form a colloidal liquid.

Next, a liquid containing ferrous sulfate as a main component is poured into this colloidal liquid and mixed.

As a result, ferrous sulfate adheres to and penetrates into the surface of the powder and even into the interior of the powder.

In addition, when pouring this ferrous sulfate,
Trace components such as sulfur, potassium, magnesium, carbon, nitrogen, and phosphorus are poured in, as well as trace components of manganese, copper, zinc, molybdenum, and chlorine.

The reason why these trace components are mixed here is that these trace components are nutrients necessary for growing seaweed.

That is, sulfur is essential for protein binding and is also necessary for the production of sulfate polysaccharides found in seaweed.

Potassium has a universal role as an oxygen activator.

Magnesium is an element required to make chlorophyll molecules.

Carbon is required for carbohydrate assembly.

Nitrogen is an important component of intracellular proteins and is indispensable for plant growth.

Phosphorus is an element necessary for energy production and energy transport within cells.

Furthermore, manganese plays an important role in the oxygen generating system of photosynthesis.

Copper is also an element necessary for photosynthetic activity, although in trace amounts.

Zinc helps maintain the structure of liposomes and aids in the formation of ribonucleic acid.

Molybdenum is an element necessary for nitrogen absorption.

Chlorine, as a chloride, is an element necessary for the first reaction of photosynthesis and the production of adenosine triphosphate.

Which of these trace ingredients to use and what weight ratio to use depends on the type of algae to be grown and the type of seawater in which the powder for seaweed bed growth is to be used. Changes are possible.

Further, in some cases, these trace components are not necessarily necessary. In short, any solution containing ferrous sulfate as a main component mixed with any or all of the various trace components mentioned above, or a solution consisting only of ferrous sulfate is sufficient.

Next, as shown in FIG. 1, the solution into which the liquid containing ferrous sulfate as a main component is poured is mixed and stirred.

Dry this liquid and evaporate the water.

As a result, the powder for growing a seaweed bed having a fine particle size according to the present invention is completed.

If it is made into powder in this way, its weight will be much lighter than in the case of conventional liquids. That is, for example, when the conventional solvent for growing a seaweed bed is a liquid, its weight is 20 kg, but the weight of the powder for growing a seaweed bed according to the present invention is 400 g.

Next, we will explain how to use this powder for seaweed beds and proliferation.

FIG. 2 is a diagram showing an outline of a method of using the powder for growing a seaweed bed according to the present invention on-site.

As shown in the figure, water and a concrete penetrant are first poured into the powder for seaweed bed growth, and mixed and stirred.

The concrete penetrating agent used is one that has recently been used as a water leakage prevention agent for concrete walls of tunnels such as subways and various concrete buildings. These concrete penetrants are special penetrants that use surfactants to penetrate from the surface of the concrete structure into the interior, filling the voids and capillaries inside the concrete body, and exerting a semi-permanent water supply effect. Most of these concrete penetrants are emulsions containing water-soluble acrylic resin and surfactant as main components. When this emulsion is dissolved in an appropriate amount of water and applied to the surface of a concrete structure, this water-soluble acrylic resin penetrates into the concrete structure, fills the voids and capillaries inside the structure, forms crystals, and hardens. It has properties.

Next, as shown in the figure, a liquid mixture of this seaweed bed propagation powder, water, and concrete penetrant is sprayed onto the surface of concrete structures such as wave-dissipating blocks, breakwaters, and jetties that will be submerged in the sea. Apply with a brush, etc.

As a result, the water-soluble acrylic resin and trace components such as ferrous sulfate and sulfur permeate into the interior of the concrete structure due to the action of the surfactant. As the water-soluble acrylic resin solidifies, a water-soluble acrylic penetrating crystal layer containing trace components such as ferrous sulfate and sulfur is formed on the surface of the concrete structure.

As a result, almost no alkaline components present inside the concrete are blown out from the surface of the concrete structure. Furthermore, even if a small amount of alkaline component spews out, it will be neutralized by the acidity of ferrous sulfate present in the crystals of the water-soluble acrylic resin.

In the above example, an emulsion of a water-soluble acrylic resin and a surfactant was used as a concrete penetrating agent, but this concrete penetrating agent is not limited to acrylic resin, and can be applied to concrete structures. Any material may be used as long as it is composed of a water-soluble resin agent and a surfactant that have the property of filling internal voids and capillaries and solidifying by forming crystals.

Figure 3 shows the solution prepared as described above.
- It is a partial cross-sectional view showing a state where a permeation layer of a resin agent in which ferrous sulfate and trace components are present is formed by applying it to the surface of a structure.

As shown in the figure, a permeation layer 12 of a resin agent containing ferrous sulfate and trace components is formed on the surface of the concrete structure 11 together with a penetrant.

This permeable layer 12 allows the concrete structure 1 to
Alkaline components no longer erupt from the surface of 1, and
It is possible to maintain an environment semi-permanently on the surface of the concrete structure 11 in which iron components preferred by fish and shellfish and algae as well as other trace components necessary for algae are present.

〔Effect of the invention〕

As explained in detail above, the powder for growing seaweed beds according to the present invention is considerably lighter in weight than a liquid powder, making it easier to carry and handle, making it extremely easy to transport. In particular, when transporting this powder for seaweed bed propagation to a remote location, such as overseas, transportation costs can be significantly reduced.

In addition, when using this powder for growing a seaweed bed, simply mix the powder for growing a seaweed bed with water and an aqueous solution of a concrete penetrant, and then apply the mixed solution to the surface of the concrete structure. Often, that work is a hour wheel.

[Brief explanation of the drawing]

Figure 1 is a diagram showing an overview of the manufacturing process of the powder for growing seaweed beds according to the present invention, and Figure 2 is a diagram showing the steps of the method for using the powder for growing seaweed beds according to the present invention on site. 3 are partial cross-sectional views showing a state in which a solution prepared by the method for using the powder for growing a seaweed bed according to the present invention is applied to the surface of a concrete structure 110 to form a permeable layer 12.

Claims (3)

[Claims] (1) A colloidal liquid made by mixing inorganic powder that has lost its heat of hydration with water, mixed with a liquid mainly composed of ferrous sulfate, and then dried. Powder for growing seaweed beds. (2) The liquid containing ferrous sulfate as the main component contains ferrous sulfate as the main component and trace components of sulfur, potassium, magnesium, carbon, nitrogen, phosphorus, manganese, copper, zinc, molybdenum, and chlorine. The powder for growing a seaweed bed according to claim 1, wherein at least one of the following ingredients is mixed. (3) Mix the powder for seaweed bed propagation according to claim (1) with water and an aqueous solution of a concrete penetrant containing a water-soluble resin and a surfactant as main components, and apply the mixed solution to the beach or the like. A method of using a powder for growing seaweed beds, which is characterized by applying it to the surface of a concrete structure submerged in the sea.