JP2003013061A - Modifying treatment material for water-bearing mud soil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a modifying treatment material solving the problems that, in making a civil engineering treatment of or reusing mass-generated sludge in dams and at the bottom of the sea, sludge soil or highly water-bearing sludge or the like discharged from construction sites and water-bearing clay and the like in farmland including paddy field, mass energy consumption, environmental pollution due to harmful hexavalent chromium, impossibility of hardening in organic matter-containing soil or the like, high alkalinity given by the resultant modified soil, biological availability cycle destruction due to such high alkalinity have been involved in conventional technologies. SOLUTION: This modifying treatment material is prepared as a powdery one-pack composite composition comprising the main components consisting of a calcia composition, an aluminum sulfate composition and an aluminum phosphate composition, and as necessary a modifying auxiliary composition. This new material thus prepared is put to contact to mix with fluid or plastic water-bearing mud soil at normal temperatures to effect treatment modification of the mud soil into nonfluid modified soil with its pH secured to <11, thus enabling the mud soil to be effectively reused as the modified soil in various useful applications. The modifying treatment technology as described above is also provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material for modifying a water-containing mud; more specifically, a water-containing mud is mainly composed of a calcium composition, an aluminum sulfate composition and an aluminum phosphate composition. In addition, the reforming treatment material prepared in a powdery one-pack composite composition composed of four parts, to which a modification assisting composition is further added if necessary, is contact-mixed at room temperature to obtain fluidity or plasticity. Of water-containing mud has non-fluidity and pH value of 1
The present invention relates to a reforming material and a reforming treatment technique for reforming to a modified soil secured to be less than 1.

[0002]

2. Description of the Related Art Water-containing mud is used for construction sludge at construction sites such as construction and civil engineering, as well as sludge, dredged soil and mud soil generated in the sea, lakes, swamps, rivers, dams, etc. It is a general term for clayey soils containing layered clay minerals, farmland such as rice fields, organic soils, soft soils, and mud soils containing silicate as a main component and water. The hydrous mud (A) in the present specification is a generic term for "hydrous mud" which contains at least 35% by weight of water and is in a fluid or plastic state.

[0003] The water-containing mud is mainly construction sludge or high water-containing sludge generated at various construction sites (shielding / propulsion work, building foundation work, dredging work, soft ground excavation work, etc.), and the amount generated is annual. It has reached 10 million tons. However, the amount of hydrated mud that is reused in these large amounts of construction sludge or high-moisture sludge is only 14
%, And the remaining about 85% is dumped / landfilled in a managed landfill site and not reused. Moreover, construction sludge or highly water-containing sludge accounts for about 12% of all industrial wastes that are finally disposed of, and it is difficult to construct a final disposal site for wastes in today's effective recycling technology for water-containing mud. In addition, the establishment of civil engineering is an urgent and important issue.

In fact, various methods and means have been tried for improving the fluid or plastic hydrated mud to a non-fluid solid state so as to make it possible to reuse the difficult-to-use hydrous mud. Among them, drying and reforming means including natural drying, and reforming means for mixing and mixing quick lime and cement to reduce the water content ratio have generally been widely adopted.

However, when natural drying is adopted as a means for drying and reforming hydrous mud containing water, it requires a huge amount of treatment site and time, and is not suitable as a means for treating hydrous mud with a large amount of generation. If it is desired to actively dry hydrous mud, it is unavoidable to consume a large amount of heat energy required for drying with a large-scale drying device, and energy depletion and global warming countermeasures are required today. It does not become a method or means.

Further, in the means for mixing and mixing quicklime with hydrous mud as a reforming treatment material, rapid heat is generated when quicklime comes into contact with water, and quicklime with high activity is treated at a treatment site without a special management system. Is dangerous and uncommon. Furthermore, in the means for mixing and blending Portland cement with hydrous mud as a reforming treatment material, harmful hexavalent chromium contained in the cement tends to be eluted from the treated soil,
Amplification of environmental pollution of hexavalent chromium, which is a harmful substance, is inevitable.

[0007] Moreover, the pH value of the improved / altered soil treated by mixing and mixing quicklime or cement with hydrous mud as a modifier is very high at 11 to 13, and refusing to reuse the improved / altered soil. In addition, a secondary adverse effect due to the elution of the alkali content into the living environment is unavoidable, and the treatment method leaves problems to be solved. Therefore, in the method of treating hydrous mud by using quicklime or cement as a reforming treatment material, it is necessary to prevent the elution of alkali in order to reuse the treated soil, which is a problem in the hydrous mud treatment of the conventional technology. Is left.

Furthermore, even if Portland cement is adopted as a reforming treatment material for hydrous mud containing a large amount of organic humic acids such as Kanto loam and sludge, fine clay particles in Kanto loam and sludge, and moreover, Kanto Organic matter contained in loam, sludge, etc., and spoilage of its organic components destroy the hydration mechanism of Portland cement.
It is difficult to expect the desired good reforming treatment, and it is difficult to reform the treated hydrated mud to the treated treated reformed soil with the strength secured.

[0009]

[Problems to be solved by the invention] Water-containing mud such as sludge and sludge, which are generated in large quantities at construction sites and dams in various places, and water-containing mud such as construction sludge and high water-containing sludge, which are in need of treatment and disposal. The reuse rate is very low. Moreover, it is difficult to secure a final disposal site where the water-containing mud can be dumped, which poses an environmental issue. further,
Even in the present treatment technology and civil engineering technology that reuses water-containing mud such as construction sludge and high-water-content sludge, the energy problem and the environmental pollution problem of hexavalent chromium remain unsolved.

Therefore, in the conventional means and methods (drying / reforming method and mixing / compounding of quick lime / cement) for making reusable modified soil from hydrated mud, design of a large-scale device,
Consumption of large amounts of energy, danger during processing and handling, environmental pollution of harmful hexavalent chromium, inability to solidify in soil containing organic matter, and high alkalinity of treated soil remain as issues, especially when treated with quick lime and cement. Secondary pollution caused by alkali remains an issue.

Further, in an agricultural civil engineering work in which a hydrated clay such as rice field is used as an agricultural basic equipment, which is an example of a hydrated mud, for example, when quicklime or portland cement is adopted as a solidifying material in the construction of a ridge, the pH of the treated soil is Since the value shows a high alkalinity of 11 or more, the bio-use cycle is destroyed, and the reuse as agricultural land is hindered, leaving a problem for agricultural civil engineering related to agricultural basic equipment. The present invention aims to construct a technique capable of solving the above-mentioned various problems.

[0012]

It is an object of the prior art to treat sludge, construction sludge, high water content sludge, etc., which are generated in large quantities and are in need of treatment and disposal, and water content mud soil in farmland such as rice fields. The consumption of a large amount of energy, the environmental pollution of harmful hexavalent chromium, the inability to solidify in soil containing organic matter, the high alkalinity of modified soil, the destruction of the bio-use cycle due to the high alkalinity, etc. It is an object of the present invention to provide an effective technique relating to a reforming treatment process in which mud is treated as a reformed soil that can be effectively reused for various purposes.

[0013]

According to the present invention, the calcium composition (B) is added to 100 parts by weight of the water-containing mud (A).
C), an aluminum sulphate composition (BA) and an aluminum phosphate composition (BP), and a powdery one-pack consisting of four members with a modifying auxiliary composition (BS) added as necessary. The modified composition (B), which is a composite composition, is added to 2 to 10 parts.
In a reforming treatment step, the hydrous mud soil (A) is mixed with 0 parts by weight at room temperature to make it a modified soil (D) having a pH value of less than 11 in a non-fluid state;

The above-mentioned hydrous mud (A) is a hydrous mud containing as a main component a silicate compound in a plastic or fluid state in which the water content is 35% or more in terms of water content; The calcium composition (BC) is a group of calcium oxides represented by the following composition formula (1): CaO.wH ₂ O (1) (wherein w is a number of 10 or less including zero). A standard calcium composition containing 50% by weight or more of the calcium components selected from the above or a combination of two or more of them in terms of CaO oxide (BC
1) is;

[0015] The above aluminum sulfate composition (BA) is represented by the following formula _{(2) aM 2 O · bAl} 2 O 3 · SO n · wH 2 O ‥‥‥‥‥‥ (2) ( wherein: M is Alkali metal element, a is a number from 1 to 4,
b is a number from 1 to 20, w is a number less than or equal to 25 including zero, n
Is a basic salt represented by the formula 2 or 3) or a normal salt or a normal salt of aluminium, a sulfur oxyacid salt of a double salt selected from the group of double salts, or a combination of two or more alum type compositions (BA1) And

The above aluminum phosphate composition (BP) has the following compositional formula (3) cAl ₂ O ₃ .P ₂ O ₅ .wH ₂ O (3) (wherein, c is 0) .. a number from 2 to 10 and w including zero is 8
Aluminium and phosphorus oxyacid salt represented by the following number), which is a normal or double salt of aluminum phosphate;

The above-mentioned reforming auxiliary composition (BS) is an adsorbent composition (BS1), which is an inorganic compound and has a water absorption capacity for adsorption, silica gel, alumina gel, zeolite clay minerals or a group of carbons, alone or in combination of two or more. ) Is;

The above modified material (B) contains 10 to 200 parts by weight of aluminum sulfate composition (BA) and 100 parts by weight of aluminum phosphate composition (BP) per 100 parts by weight of calcium composition (BC). 0.1 to 50 parts by weight of a three-part mixture, and if necessary, a modifying auxiliary composition (B
There is provided a modifying treatment material prepared by a one-pack composite composition in powder form, which is formed by quadruple mixing by adding 1 to 500 parts by weight of S).

According to the present invention, the above-mentioned calcium composition (BC) contains at least 20% by weight or more of the calcium component on the basis of CaO oxide, waste limestone, waste gypsum, by-product gypsum, ceramic system. Provided is a reforming treatment material which is a waste powder composition (BC2) alone or in combination of two or more kinds of powders consisting of wastes, blast furnace slag or incineration ash wastes.

According to the present invention, the above-mentioned calcium chloride composition (BC) is a single or a combination of two or more cement powders selected from the group consisting of Portland cement, blast furnace cement, silica cement, fly ash cement or alumina cement. Provided is a modified treatment material which is the composition (BC3).

According to the present invention, the above-mentioned calcium composition (BC) is a calcium carbonate modified composition (BC4) containing a calcium carbonate-modified calcium carbonate component as a main component; (BC4) is calcium carbonate (Ba) such as natural aragonite, calcite, marble and shells.
50 parts by weight of powder containing CO ₃ ) as a main component, as necessary, hydrochloric acid, sulfurous acid, sulfuric acid, nitrous acid, nitric acid or silicic acid group alone or in combination of two or more acid radicals 50
Calcium component that has been denatured by decarboxylation by contacting it at a temperature of 1000 ° C. or less is added to CaO.
There is provided a modification treatment material which is a calcium carbide modification composition containing 50% by weight or more based on oxide.

According to the present invention, the calcium composition (BC) is a magnesium compound of magnesium oxide or magnesium hydroxide, either alone or in combination of two or more, wherein the magnesium compound is at least 50 expressed on the basis of MgO oxide. There is provided a modifying treatment material which is a magnesia mixed composition (BC5) containing a calcium compound as a main component, which is contained in an amount of not more than wt%.

According to the present invention, the above-mentioned calcium composition (BC) is the above-mentioned calcium standard composition (BC).
1), a waste powder composition (BC2), a cement powder composition (BC3), a calcium carbide modified composition (BC4), and a magnesia mixed composition (BC5) group, which is a combination of two or more kinds, and a calcium composite composition. A modified treatment material that is (BC6) is provided.

According to the present invention, the above aluminum sulfate composition (BA) has the following compositional formula (4) bAl ₂ O ₃ .SO _n .wH ₂ O (4) (wherein: b is a number from 1 to 20, w is 0 to 24
And n is a number of 2 or 3), which is a basic salt or a normal salt thereof, or a combination band type composition (a combination of two or more kinds selected from the aluminum sulfate group consisting of a sulfur oxyacid salt of aluminum which is a normal salt). A modified material that is BA2) is provided.

According to the present invention, the above-mentioned reforming auxiliary composition (BS) is a water-soluble organic polymer compound having adsorption and water absorption, polyacrylate, vinyl acetate, epoxy resin, melamine resin, urea resin. , A polybutadiene resin, a urethane resin, an alkyd resin, or a combination of two or more natural resins, or a combination water emulsion type water absorbing agent composition (BS2).

According to the present invention, the above-mentioned reforming auxiliary composition (BS) has the following composition formula (5): dQ _{2 / n} O · SO _m · wH ₂ O (5) (formula) Medium: Q is an alkali metal, alkaline earth metal, or an iron group alone or in combination of two or more, and d is 1
To 20, n is the valence of the Q element, m is the number of 2 or 3, and w is a number of 12 or less, including zero). There is provided a modifying treatment material which is an oxyacid salt composition (BS3) of sulfur selected alone or in combination of two or more kinds.

According to the invention, the reforming aid compositions (BS) is represented by the following formula _{(6) eG 2 / n O} · P 2 O 5 · wH 2 O .................. (6) (In the formula: G is lithium, sodium, potassium, magnesium, calcium, zinc, strontium, barium, silicon, titanium, zirconium, molybdenum, iron,
Cobalt and nickel elements alone or in combination of two or more, e is a number from 1.0 to 8.0, n is a valence number of G element, and w is a number including zero of 9.0 or less). There is provided a modification treatment material which is an oxyacid salt composition (BS4) of phosphorus alone or in combination of two or more kinds selected from the compound group of phosphorus oxyacid salt of each metal element.

According to the present invention, the above-mentioned reforming auxiliary composition (BS) has the following composition formula (7) fDO.Al ₂ O ₃ .wH ₂ O (7) (wherein: D Is an alkaline earth metal element, f is a number including zero or less than 5.0, and w is a number including zero or less than 10), and is used alone or in the hydrate group of alkaline earth metal aluminate or alumina. A modified treating material is provided that is a combination of two or more alumina replenishing compositions (BS5).

According to the present invention, the above-mentioned modifying auxiliary composition (BS) has a particle diameter of at least 100 μm or less and is a pigment or coloring agent which adds functionality to a solidified product formed of a powder or a granular material. Provided is a modifying treatment material which is a composition (BS6) having a combination of two or more agents, activators and fillers.

According to the present invention, the above-mentioned modified auxiliary composition (BS) is a fibrous material for reinforcing the strength of the solidified body such as metal fiber, glass fiber, carbon fiber, aramid fiber, vegetable fiber or mineral fiber. Provided is a modified treatment material which is a group or a combination of two or more kinds of fibrous reinforcing composition (BS7).

According to the present invention, the above-mentioned reforming auxiliary composition (BS) has a particle size of 100 μm or more and 7 mm or less and a bulk specific gravity of 0.5 to 2.5 g / cc. Provided is a modified treatment material which is a filled aggregate composition (BS8) having a filling property as an aggregate in the form of sand grains.

According to the present invention, the above-mentioned reforming auxiliary composition (BS) comprises a combination of an alkali metal oxide, an alkaline earth metal oxide, silica, alumina and a sulfur oxyacid salt group. As a result, there is provided a modified material which is a solidifying material composition (BS9) that exhibits hydraulic properties at room temperature.

According to the present invention, the above-mentioned reforming auxiliary composition (BS) is the above-mentioned adsorbent composition (BS1),
Water absorbing composition (BS2), sulfur oxyacid salt composition (B
S3), phosphorus oxyacid salt composition (BS4), alumina supplement composition (BS5), functionality imparting composition (BS6),
Fibrous reinforcing composition (BS7), filled aggregate composition (BS
8) and a modified treatment material which is a combination composite auxiliary composition (BS10) of two or more members of the solidifying material composition (BS9) group.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION The present inventors apply a large amount of energy to the treatment of construction sludge and high water content sludge that are in need of treatment and disposal, as well as the civil engineering treatment for modifying water containing mud such as farmland such as rice fields. Eliminate problems such as consumption, danger during handling, harmful hexavalent chromium environmental pollution, inability to solidify in soil containing organic matter, secondary pollution due to high alkalinity of modified soil, and effective use of hydrous mud We have determined that it is important to establish technology for recycling and reuse.

The inventors of the present invention have found that as a prior application technique relating to a solidifying material capable of already solidifying at room temperature, a specific silica-based material is used.
A hydraulic silica-based binder based on an alkaline composition and an aluminate composition (Japanese Patent Laid-Open No. 11-24626).
1) was further developed, and an alkaline solidifying agent containing a calcium composition and an alkaline composition as a basic compound (Japanese Patent Application No. 2000-3
51931) was developed as a chromeless solidifying material. Furthermore, a room temperature hydraulic solidifying material obtained by blending a sulfur oxyacid salt composition with an alkaline composition and a calcium composition (Japanese Patent Application No. 2001-2001).
-083816) was developed to develop a technology relating to a porous water-resistant and heat-resistant pollution-free solidified body.

The inventors of the present invention, based on these invention techniques, (a) solidifying material for low-level radioactive waste, (b)
Granules and solidifying agents for charcoal-zeolite composite adsorbents, ▲ c ▼ Stabilizing and solidifying materials for soft ground, ▲ d ▼ Pollution-free cement materials such as pollution-free waterway materials (U-shaped grooves, etc.) It has been commercialized as an effective product and has already achieved results in various fields.

The inventors of the present invention are based on the technology relating to the hydraulic solidifying material and the porous water-resistant and heat-resistant solidified material which enables the room temperature solidification treatment constructed by the prior application technology developed by the present inventors. Then, the object of the present invention was achieved in a low cost and safe production process. And, it enables a simple modification treatment of the hydrous mud soil (A) with the modified treatment material (B) produced with a safe production process condition with an inexpensive material, and the modified soil (D) is not Liquidity and pH value of 11
We have been studying the technological development that enables the reuse of the modified soil (D), which is secured below the limit, and have conducted repeated experiments for that purpose.

As a result, with respect to 100 parts by volume of the hydrous mud (A), the aluminum sulfate composition (BA), the calcium composition (BC) and the aluminum phosphate composition (BP) were used as the main components, and if necessary, further. And a powdery one-pack composite composition as a modification treatment material (B) by adding a modification auxiliary composition (BS),
2 to 100 parts by weight are mixed by contact at room temperature to immobilize the free water contained in the hydrous mud (A), and the hydrous mud (A) is kept non-fluid and has a pH value of less than 11. The technical conditions of the modified treatment material (B) which changes the quality of the modified soil (D) are found.

What is important in the technique of the present invention is the modifying material (B) containing the calcium composition (BC), the aluminum sulfate composition (BA) and the aluminum phosphate composition (BP) of the present invention as main components. The free water contained in the water-containing mud (A) is mixed by contacting with the water-containing mud (A) at room temperature, and the free water contained in the water-containing mud (A) is incorporated into the produced compound as compounded water or crystal water to be immobilized. By reducing the content ratio of slag, fluid or plastic hydrous mud soil (A) that is difficult to handle is modified to be easily reusable, non-fluid, and modified soil (D) that has a pH value of less than 11. It is a technology that makes it possible.

Specifically, the contact free mixing of the hydrous mud (A) and the modified material (B) fixes the free water contained between the modified material (B) and the hydrous mud (A). An example of a chemical reaction to be converted can be shown as follows. CaO + H ₂ O → Ca (OH) ₂ 2Al ₂ (SO ₄ ) ₃ + 6CaO + 18H ₂ O → 4Al
_{(OH) 3 + 6CaSO 4 ·} 2H 2 O 2AlPO 4 + 3CaO + 3H 2 O → 2Al (OH) 3
+ Ca ₃ (PO ₄ ) ₂

From the above reaction, 1 mol of CaO (56
g) consumes 1 mol of H ₂ O (18 g),
₂ moles of ₂ (SO ₄ ) ₃ (684 g) and 6 moles of CaO (336 g) consume 18 moles of H ₂ O (324 g), 1 mole of AlPO ₄ (122 g) and 3 moles of CaO (168 g). It is calculated that 3 mol (54 g) of H ₂ O is consumed. That is, 1488 g of the modified material (B) (56
+ 684 + 336 + 244 + 168g) and 396g of water
(18 + 324 + 54) was immobilized, and the reaction resulted in a solid content of 1884 g (74 + 312 + 1032 + 156 +).
310) will be newly generated.

Based on the above calculation, the modified material (B)
Is composed of 560 g of quick lime, 342 g of aluminum sulfate, and 244 g of aluminum phosphate, totaling 1488 g,
Temporarily, mud 148 with a water content ratio of 100% (solid content 50 + water 50)
80% of modified material (B) corresponds to 10% 1488
When added, the solid content in the modified soil formed was 9324 g.
The water content was reduced to 7044 g and the water content ratio was 1
It has been confirmed by calculation that the modified soil has been changed from 00% to 75.5%, and it is well understood that the fluid mud is transformed into a non-fluid, easily treated modified soil (D). .

In the prior art, even if the hydrated mud of the hydrated soil (A) is subjected to the modification treatment by applying only quicklime or cement, the p of the modified soil (D) modified here is p.
The H value exhibits a high alkalinity of 11 or more, and the alkaline component is eluted from the modified soil (D), and the secondary adverse effect caused to the environment by the eluted alkali at this time is inevitable.

However, what is important in the present invention is that in the modified soil (D) obtained by modifying the hydrous mud soil (A) with the modified material (B) of the present invention, The phenomenon of alkalinity caused by the constituent calcium salt composition (BC) is the sulfate radical and the aluminum phosphate composition (aluminum phosphate composition of the aluminum sulfate composition (BA) that is also blended in the modified treatment material (B). It is to ensure that the pH value of the modified soil (D) is less than 10 by being neutralized by the phosphate radicals of BP).

Therefore, according to the modified material (B) of the present invention, the inventors have found that the alkaline component elution in the modified soil (D), which has been a problem in the prior art, is
The sulfate group and phosphate group contained together form a sparingly soluble compound.
It has been found that it is possible to keep the value as low as less than.

For example, the pH value of the modified soil obtained by adopting and modifying Portland cement or lime as a solidifying material for roadside construction in a field ridge for agricultural land has a pH value of 11 to 13.
It has a high alkalinity, destroying the bio-use cycle, and it is impossible to reuse the modified soil here. However, even if the modified material (B) of the present invention is adopted as a solidifying material for roadside construction in a field ridge for agricultural land, p
An H value of less than 11 can be secured, and the modified soil (D) can be reused without destroying the bio-use cycle.

Further, when the present inventors adopt the modifying material (B) of the present invention to modify the hydrous mud (A),
A modification auxiliary composition (BS) that exerts a complementary auxiliary effect on the modification material (B) in response to various needs required for workability in the modification treatment step and physical properties of the modified soil (D) to be generated. ) Was added.

As a result, the alum-sulfur composition (BA) of the present invention
With respect to the modifying treatment material (B) having the basic composition of the calcium carbonate composition and the calcium composition (BC), various modifying auxiliary compositions (BS) [adsorbent composition (BS1), water absorbing agent composition (BS2), Sulfur oxyacid salt composition (BS3), phosphorus oxyacid salt composition (BS4), alumina supplement composition (BS5), function imparting composition (BS6), fibrous reinforcing composition (BS7),
Filled aggregate composition (BS8), hydraulic solidifying material composition (BS
9), when using the composite auxiliary composition (BS10)] together,
It was found that auxiliary effects are added to the processing workability and the physical properties of the modified soil (D), depending on the respective purposes, to be exerted.

The hydrous mud (A) which is the target of the modified material (B) of the present invention is a silicate-based material in a plastic or fluid state in which the water content is 35% or more in terms of water content ratio. A general term for hydrous mud containing as a main component. A typical example of the water-containing mud (A) is a layered structure such as construction by-products and dredging by-products generated as waste by-products at construction sites such as construction and civil engineering, and at sea, lakes, swamps, rivers, dams, etc. Clay soil containing clay minerals, organic soil, mud soil, soft soil, sludge,
Examples include dredged soil, volcanic ash cohesive soil, and agricultural land.

Conventionally, when the water-containing mud (A) of the water-containing mud, for example, construction waste soil or sludge, is reformed to form a non-fluidified solid, it is treated by adding cement as a solidifying material. Came. However, when a large amount of powdered cement is added and mixed, the treated soil exhibits a high alkalinity, and the harmful hexavalent chromium contained in the cement tends to be eluted from the treated modified soil (D), which causes environmental pollution. There was, and it was not effective.

However, by adopting the chromium-less reforming treatment material (B) according to the present invention, these hexavalent chromium problems are solved, and fluid mud having a high water content (A) in a petepet state is treated. Even when the target soil is used, the modified soil (D) to be treated here has a certain strength at a low cost, and the pH value of the modified soil (D) can be secured at less than 11.

In addition to the water-containing mud (A) containing organic components such as Kanto loam and sludge, even if conventional Portland cement or the like is adopted as the modifying treatment material, clay such as Kanto loam or sludge Solidification is inhibited by the fineness of the particles and the organic matter contained in the Kanto loam, sludge, etc., and the spoilage of the organic components, and the formation of the modified soil (D) with sufficient strength in the treated soil is achieved. No, it ended in failure.

By adopting the modified material (B) of the present invention, it becomes possible to effectively modify the hydrated mud clay of Kanto loam and sludge as will be shown in Examples to be described later. It also exhibits an effective reforming treatment capacity for hydrous mud (A) such as sludge, and moreover, unlike the case of conventional cement, the pH value of the modified soil (D) can be secured at less than 11.

In a specific embodiment of the present invention, a calcium composition (BC), an aluminum sulfate composition (BA) and an aluminum phosphate composition, which are constituents of the one-pack modified treatment material (B). The (BP) and the modifying auxiliary composition (BS) that is blended as necessary will be described.
Further, the modifying treatment material (B) composed of these constituent components and prepared in the form of a powder in a one-pack composite composition will be described below.

The modified material (B) of the present invention is a composite composition containing three components, a calcium composition (BC), an aluminum sulfate composition (BA) and an aluminum phosphate composition (BP) as basic constituents. And the calcium composition (B
C), the aluminum sulfate composition (BA) and the aluminum phosphate composition (BP), the composite combination and the mixing ratio of the respective components are as follows: the state of the hydrated mud (A), the modification treatment conditions, the treated hydrated mud ( It depends on the purpose of use, etc. of A), but is determined by a preliminary experiment that is tried in advance.

The following six types can be mentioned as the calcium composition (BC) containing calcium as the main component which constitutes the modified material (B) which is the one-pack composite composition of the present invention. Calcia standard composition (BC1), which is an oxide / hydroxide of calcium metal element, waste powder composition (BC2), which is industrial waste such as slag, sludge, and incineration ash. Cement, which is Portland cement or alumina cement. Powder composition (BC3) Charcoal calcium modified composition (BC4) which is a heat-treated decarboxylation modified product of natural marble or shells Magnesium or magnesium mixed composition containing magnesium hydroxide (BC5) Calcium composition (BC) ) Calcia composite composition in which two or more members of the group are combined (BC6)

In general, the main component calcium constituting the calcium composition (BC) is preferably a natural or modified calcium oxide or hydroxide. However, these calcium compounds are sensitive to the reaction with carbonic acid and water existing in the air, and generally form a carbonate, although some of them are often contained in various impurities. Therefore, when adopting the modified material (B), it is desirable to select it appropriately according to the intended purpose and application of the present invention, and if necessary, carry out purification treatment such as decarboxylation in advance and adopt it.

As a matter of course, the calcium composition (BC) adopted in the present invention contains magnesium, zinc, strontium and barium, which are other alkaline earth metal elements in the same family as calcium, as a mixed component. The coexistence does not impair the basic chemical reaction in the present invention of the calcium composition (BC).

As the calcium composition (BC) adopted for the modifying material (B) of the present invention, quick lime or a calcium composition containing lime as a main component is generally preferred from the viewpoint of easy availability and cost. Can be adopted. However, when quick lime is adopted as the calcium composition (BC), the direct reaction between quick lime and water is extremely violent and a large amount of heat (15540 cal. Per reaction of 1 mol) is released, so it is necessary to handle with care. There is.

As a typical calcium composition (BC) adopted in the present invention, the following composition formula (1): CaO.wH ₂ O ... (1) (In the formula, w includes zero is 2 Powder containing 50% by weight or more of the calcium component represented by the following number) selected from the group of calcium oxide or calcium hydroxide and composed of a single or a combination of two or more kinds in terms of CaO oxide. The standard composition of calcia (BC1), which is mainly composed of scaly calcia, can be mentioned.

The calcium oxide and calcium hydroxide constituting the calcium standard composition (BC1) are produced or processed in large quantities as purified products of natural minerals or decarbonated products or digested products of calcium carbonates such as limestone and shells. So-called quick lime, which is an oxide of calcium, is suitable because it is an industrial chemical that is easily available and inexpensive. Of course, calcium hydroxide can be selected, but oxides are preferable to hydroxides because the role required for the calcium composition (BC) is to have a dehydrating effect.

Other embodiments of the calcium composition (BC) adopted as the modifying material (B) of the present invention include slag such as blast furnace slag produced as a by-product in an iron mill and lime produced as a by-product in the paper manufacturing industry. It is powder of various industrial wastes such as Japanese sludge, gypsum such as waste gypsum board, and incineration ash discharged from various incinerators. The waste powder composition (BC2), which is abundantly contained at 20% by weight or more in terms of calcium oxide, can be mentioned.

In particular, blast furnace slag that is a by-product of steelmaking and various metallurgical industries, which are representative of wastes; incinerated ash of lime-neutralized paper sludge discharged from the papermaking industry, organic-containing wastes (thinning materials, Agricultural / livestock / fishery wastes, various fermentation residues, food processing residues, etc.) and their carbonized incineration ash, which is a dry-distilled product thereof; incinerator ash of various garbage including general wastes; lime-neutralized A waste powder composition (BC2) that has undergone a heat history of incinerated ash such as existing sewage sludge and various other sludges can also be suitably adopted.

As another embodiment of the calcium composition (BC) adopted as the modifying material (B) of the present invention, it is industrially produced in a large amount as a powder containing a calcium component as a main component, and is widely used. The cement powder composition (BC3), which is a hydraulic cement in powder form, which is available at a low cost and is easily available.

As the cement powder composition (BC3),
It can be appropriately selected from known and officially used hydraulic cement powders. Specific examples thereof include Portland cement (normal, early strength, super early strength, moderate heat, sulfate resistance) and mixed cement (blast furnace cement, silica cement, fly ash cement) specified in JIS R 5200, and further Various special cements (white Portland cement,
Alumina cement, super rapid hardening cement, colloidal cement, oil well cement, geothermal well cement, swelling cement,
Other preferable examples include powders of hydraulic cement minerals such as special cement).

The cement powder composition (BC3) used in the calcium composition (BC) of the present invention has the same hydraulic property at room temperature with respect to the hydrated mud (A) as well as the modifying auxiliary composition (BS) described later. Since it exhibits the effect of dehydration treatment, which is the object of the present invention, it enables the formation of a solidified body that exhibits strength when cured at room temperature. Therefore, it is very effective as a modification treatment material accompanied by dehydration of hydrous mud (A). is there.

As another embodiment of the calcium composition (BC) adopted as the modifying treatment material (B) of the present invention, natural aragonite,
Calcium carbonate (CaC such as calcite, marble and shells)
O ₃ ) powder is decarboxylated by a decarboxylation treatment in which it is brought into contact with a hot atmosphere at 1000 ° C. or lower to give an oxide (C
aO) -calcium charcoal-modified composition containing at least 50 wt% or more of calcium oxide as a main component (B)
C4) can be mentioned.

Furthermore, 100 parts by weight of calcium carbonate (CaCO ₃ ) powder such as natural aragonite, calcite, marble or shells is used alone or in combination of two or more kinds of hydrochloric acid, sulfurous acid, sulfuric acid, nitrous acid or nitric acid. And 50 parts by weight or less of an acid radical consisting of and a water-containing ferrosilicate clay containing 2: 1 layered dioctahedral or trioctahedral smectite group clay mineral as a main component. , Calcium carbonate containing at least 50% by weight or more of calcium carbonate (CaO) component denatured by decarboxylation by contact at 1000 ° C. or less and calcium carbonate as a main component by denatured treatment, and further acid radical or silicic acid component And a carbon charcoal modified composition (BC4) in which

In particular, the shells of shellfish such as scallops and oysters are a treasure trove containing calcium components, but since the main component of the shells is stable calcium carbonate, they are abandoned in large quantities as they are left unused. It is difficult to dispose of it. It is preferable to adopt the shells of this shellfish as the raw material for the calcium carbide modified composition (BC4) of the present invention, because the shellfish that are wastes of industrial waste that are not suitable for treatment and disposal are effectively reused.

As another embodiment of the calcium composition (BC) adopted as the modifying treatment material (B) of the present invention, a compound of magnesium element belonging to the second group of the same family as calcium element on the periodic table is used. It is possible to select the magnesia mixture composition (BC5) mixed in the above-mentioned calcium composition (BC) in an amount of at least 10% by weight or more.

Magnesium, which is magnesium oxide, is most preferable as the compound of the magnesium element, but magnesium hydroxide and other magnesium oxyacid salts may be used. Compounds of these magnesium elements are suitable because they exhibit substantially the same action as that exhibited by the calcium in the modification treatment of the hydrous mud (A).

As another embodiment of the calcium composition (BC) adopted in the modified material (B) of the present invention, the calcium standard composition (BC1) shown in each of the above-mentioned calcium compositions (BC). , Waste powder composition (BC
2), cement powder composition (BC3), calcium carbonate modified composition (BC4) and magnesia mixed composition (BC5)
There may be mentioned a Calcia composite composition (BC6) consisting of a combination of two or more members in the composition group.

As the aluminum sulfate composition (BA) containing aluminum sulfate as a main component, which constitutes the modified treatment material (B) which is the one-pack composite composition of the present invention, the following composition formula (2): aM ₂ O.bAl ₂ O ₃ · SO _n · wH ₂ O ····· (2) (In the formula: M is an alkali metal element, a is a number from 1 to 4,
b is a number from 1 to 20, w is a number less than or equal to 25 including zero, n
Is a basic salt represented by the formula 2 or 3) or a normal salt or a normal salt of the alkali metal aluminum sulfur oxyacid double salt selected from the double salt group or a combination of two or more alum type compositions (BA1) Can be mentioned suitably.

Generally, as the sulfur oxyacid salt of alkali metal aluminum which is the alum type composition (BA1), a regular octahedron K ₂ SO ₄ .Al ₂ (produced from a mixed solution of aluminum sulfate and potassium sulfate) is used. SO ₄ ) ₃・
A double salt crystal of 24H ₂ O is typical. There are also double salt crystals of sodium sulfate and aluminum sulfate. There are also crushed products of natural alum. In the present invention, any alum type composition can be suitably adopted.

Further, as the aluminum sulfate composition (BA) containing aluminum sulfate as a main component which constitutes the modified material (B) which is the one-pack composite composition of the present invention, the following composition formula (4) bAl ₂ O ₃・ SO _n・ wH ₂ O ‥‥‥‥‥‥‥ (4) (In the formula, b is a number of 1 to 20 and w is 0 to 24.
, And n is a number of 2 or 3) A single or two or more combined band type compositions (BA2) selected from the group of aluminum sulfates, which are basic salts or normal salts of aluminum oxysulfates of sulfur of aluminum. ) Can be preferably mentioned.

Aluminum sulphate is generally industrially solid 18-hydrate and anhydride, and is divided into three kinds of alumina content of 14% or more, 15% or more, 17% or more, Liquid aluminum sulfate having an alumina content of 8 to 8.2% is also commercially available. Furthermore, iron-containing aluminum sulfate, which is a by-product when various types of clay are treated with sulfuric acid, is commercially available as a water treatment agent. ing.

Further, as the aluminum sulfate composition (BA) in the present invention, sulfuric acid was added to easily reactive aluminum oxide and aluminum hydroxide, and further to clay minerals containing easily reactive aluminum silicate as a main component. Aluminum sulfate prepared by a mixture, and impure aluminum sulfate in which sulfates such as iron and alkaline earth metals coexist can also be suitably adopted.

As the aluminum phosphate composition (BP) containing aluminum phosphate as a main component which constitutes the modified material (B) which is the one-pack composite composition of the present invention, the following composition formula (3) cAl ₂ O ₃ · P ₂ O ₅ · wH ₂ O ····· (3) (In the formula, c is a number from 0.2 to 10 and w includes zero 8
A normal salt or double salt aluminum phosphate compound composed of alumina and an oxyacid salt of phosphorus represented by the following number) can be preferably mentioned.

For the aluminum phosphate composition (BP) adopted in the present invention, anhydrous or dihydrated aluminum phosphate which is generally produced as an industrial chemical can be suitably selected. Further, aluminum phosphate can be easily produced by a mixed reaction of easily reactive alumina or aluminum hydroxide and phosphoric acid.

Furthermore, the aluminum phosphate composition (BP) in the present invention is prepared by mixing and reacting easily-reactive alumina or aluminium hydroxide with various types of readily available ammonium phosphate, sodium phosphate, etc. Aluminum can be produced. However, according to this production method, ammonium or sodium may be mixed in the product, and it is necessary to carefully select the material as the modifying treatment material (B) of the present invention.

Furthermore, these aluminum phosphates are aluminum phosphorus oxyacids which are also mixed together with the phosphorus oxyacid salt composition (BS4) shown in the modification auxiliary composition (BS) described later. Even an aluminum phosphate containing a salt as a main component does not hinder the modification treatment effect in the present invention, and the aluminum phosphate composition (B
P) can be suitably adopted.

What is important in the present invention is that the pH value of the modified soil (D) obtained by modifying the hydrated mud soil (A) with the modified material (B) is suppressed to less than 11 and the secondary value due to alkali elution Pollution is stopped. In the modified treatment material (B) of the present invention, the sulfate group contained in the aluminum sulfate composition (BA) and the phosphate group contained in the aluminum phosphate composition (BP), which are also blended with the modified treatment material (B). By the neutralization reaction with the calcium component due to the above, it is transformed into a sparingly soluble or insoluble calcium compound, and the object of the present invention is achieved.

In particular, the immobilization of the calcium component by the phosphate is superior to the immobilization of the calcium component by the sulfate, and the elution of the alkaline component is effectively prevented in parallel with the modification effect required in the present invention. can do. Therefore, in addition to the aluminum sulfate composition (BA) as a constituent of the modified material (B) of the present invention, an aluminum phosphate composition (B
It was found that P) is an essential component.

Basic 3 which constitutes the above modified material (B)
The constituents such as the calcium composition (BC), the aluminum sulfate composition (BA) and the aluminum phosphate composition (BP) are
It is preferable to prepare the one-pack composite composition in the form of powder in advance and to provide it as the modifying treatment material (B) for the hydrous mud (A) in terms of work and handling. Furthermore, the reforming auxiliary composition (BS), which is another component to be blended with the modifying treatment material (B) as required, is prepared in powder form in advance into a one-pack composite composition and adopted. Is preferred.

When the hydrous mud (A) is treated with the modified material (B) of the present invention to ensure a non-fluidity and a pH value of less than 11, the situation of the hydrous mud (A), the hydrous mud (A) Workability when treating soil and modified soil (D)
Various modification treatment conditions are required according to the physical properties and performance required for the above, the purpose and application of the modification treatment, and the like.

Corresponding to the reforming treatment conditions, an adsorbing / water-absorbing agent that exerts an auxiliary effect of reforming and water absorption, supplementation of sulfate radicals,
It is modified by a material that plays an auxiliary role in the modification treatment such as phosphate root replenishment, alumina component replenishment, function-imparting additives, fibrous reinforcing agents, filled aggregates, and hydraulic solidifying materials at room temperature. Further, it is possible to supplementarily improve the physical properties of the water-containing mud (A) and the action and effect during the reforming treatment.

In the present invention, as an additional compounding material capable of coping with this auxiliary improvement, a modifying auxiliary composition (BS) suitable for each is selected as required, and the calcium composition (B) is selected.
In addition to C), aluminum sulfate composition (BA) and aluminum phosphate composition (BP), they can be added to the hydrated mud (A) independently, but a modification auxiliary composition (BS) Modification treatment material (B) by preliminarily blending and preparing each component including
Is preferably provided as.

In the modifying treatment material (B) of the present invention, the following 10 kinds of modifying auxiliary compositions (BS) can be suitably selected. Adsorbent composition consisting of silica gel, alumina gel, zeolite, charcoal (BS1) Water absorbing agent composition consisting of water-soluble organic acrylic or vinyl chloride resin (BS2) Modification treatment material (B) Sulfuric acid, an essential component Sulfur oxyacid salt composition for replenishing roots (BS3) Modified treatment material (B) Phosphoric acid as an essential component Phosphorus oxyacid salt composition for replenishment of roots (BS4) Modified treatment material (B) Alumina content for essential component Replenishing Alumina Replenishing Composition (BS5) Pigment, Colorant, Activator, Filler, etc. Functionality-imparting Composition (BS6) Fiber Reinforcement Consisting of Metal, Glass, Carbon, Aramid, etc. Composition (BS7) Sand, lightweight aggregate, pearlite, iron ore, etc. Filled aggregate composition to be a filled aggregate (BS8) Solidifying agent composition (BS9) consisting of alkali, alkaline earth, silica, alumina, etc. ▲ 10 The above modified auxiliary composition (BS) composite aid composition which is previously complex mixture (BS 10)

Modification auxiliary composition (BS) selected here
Is a calcium composition (BC) and an aluminum sulfate composition (BA), which are the three main components that make up the modified material (B).
When each component of the aluminum phosphate composition (BP) is mixed and mixed to prepare a one-pack product, it is possible to mix and prepare at the same time. However, when directly mixing the one-pack product prepared in advance with the three main components into the hydrous mud (A),
It is also possible to additionally mix the modifying auxiliary composition (BS) and the auxiliary auxiliary composition (BS), which are separately prepared in the required amount ratio.

The adsorbent composition (BS1) of the reforming auxiliary composition (BS), which is optionally added to the modifying treatment material (B) in the present invention, is an inorganic compound and has an adsorption reforming power. A modifying agent consisting of silica gel, alumina gel, zeolite, charcoal such as clay minerals or activated carbon, which is used alone or in combination, is preferable, and the water contained in the hydrated mud (A) is adsorbed in advance to carry out a modification treatment step. To progress smoothly and exert an auxiliary effect.

The silica gel and alumina gel of the adsorbent composition (BS1) of the present invention are commercially available as an adsorbent or a dehydrating agent and can be selected from powdery, granular or granular industrial chemicals. However, since the modifying treatment material (B) in the present invention is in a powder form, it is preferable that the silica gel and the alumina gel of the modification assisting composition (BS) are also in a powder form.

As the zeolite of the adsorbent composition (BS1) of the present invention, the chemical composition formula (8) of the following unit cell is M _{x / n.} [(AlO ₂ ) _x. (SiO ₂ ) _y ] .wH ₂ O ……………… (8) (In the formula: M is a metal cation with a valence of n, and x + y is the number of tetrahedra per unit lattice.) An aluminosilicate having a zeolite structure or a structure equivalent thereto. Zeolites or zeolite precursors can be mentioned.

In particular, as the zeolite as the adsorbent composition (BS1) of the present invention, a natural product can be selected, but as the dehydrating agent, a synthetic zeolite of 4A type whose crystal form to be industrially synthesized is fixed. Is easily available and is preferable. Further, in order to use it as a dehydrating agent, the synthetic zeolite as the dehydrating agent has a particle size of 10 μm or less, preferably 5 μm.
The following fine particles are preferable.

As the clay minerals of the adsorbent composition (BS1) of the present invention, silanol groups are abundantly secured in the polysiloxane bond centered on aluminum silicate,
Preferable examples thereof include a hydrous ferrosilicate mineral having adsorptivity and a 2: 1 layer type, dioctahedral type or trioctahedral type layered clay mineral of the smectite group.

Generally, the hydrous phyllosilicate mineral is Si-
It is a generic term for clays composed of a water-containing layered silicate compound having a layered silicate structure as a basic body, which is bonded to each other around an O tetrahedron, and is a natural layered clay mineral. These phyllosilicate minerals are roughly classified into a hexagonal network layered body and a square network shaped layered body, and most of the ferrosilicate compounds are formed from the hexagonal network layered body.

According to the classification of layered clay minerals which are hydrous ferrosilicate minerals, 1: 1 layer type kaolinite is classified into dioctahedral type and trioctahedral type. On the other hand, there are 2: 1 layer types such as pyrophyllite, talc, smectite, vermiculite, mica, and chlorite.
It is classified into an octahedral type and a three octahedral type.

Among them, the 2: 1 layer type smectite family dioctahedral type layered clay minerals such as montmorillonite and beidellite have a bond between aluminum and silicon contained therein as compared with the 1: 1 layered layered clay minerals such as kaolinite. It is unstable and rich in reactivity, has a large specific surface area, has high adsorption performance, and is excellent in exerting the binder effect in the present invention. Further, saponite, hectorite, and sauconite are classified into the trioctahedral type, and these layered clay minerals are also suitable as the clay minerals of the present invention.

Particularly, montmorillonite is preferable because it is easily reactive to alkali and easily available. Montmorillonite is (Na, Ca _1/2 ) _0.33 (Al
The compositional structural formula of _1.67 Mg _0.33 ) Si ₄ O ₁₀ (OH) ₂ (however, interlayer water is omitted) is shown. In this montmorillonite, the distance between positive and negative charges is large, the interaction force is weak, and cation exchange easily takes place to form an alkaline silanol group that exerts a binder effect, which is preferable.

The layered clay mineral (ABS2) composed of these ferrosilicate minerals contains the content and amount of the metal element partially substituted depending on the place of production and the environment at the time of clay formation.
In addition, the amount of water coordinated between the layers may change, and there is a tendency for the bottom surface spacing to change due to the metal element that is substituted and the water and organic substances that enter the layers, which also affects the swelling manifestation. There is a tendency. Bentonite and subbentonite (acid clay) that does not have a large swelling property are classified as montmorillonite.

However, since hydrous ferrosilicate minerals are naturally occurring minerals, they generally coexist with various impurities. Therefore, in the present invention, in the case of a water-containing layered clay mineral coexisting with impurities, an object of the present invention is to use a clay mineral containing at least 50% by weight of an active ingredient as a clay mineral, for example, montmorillonite. Can be adopted as the adsorbent composition (BS1) of the reforming auxiliary composition (BS) without impairing the above.

In general, the phyllosilicate clay contains water in an amount range of 20% by weight or less even when it is a dried product. But,
The hydrous phyllosilicate employed in the present invention is preferably a dry powder. It is a dry powder having a water content of 20% by weight or less, preferably 18% by weight or less, and the fineness of the powder is such that it is pulverized and classified into a powder that substantially passes through at least 80% by 65 mesh screen. Are preferable in handling such as reactivity and workability.

Examples of the charcoal of the adsorbent composition (BS1) of the present invention include charcoal known as Bincho charcoal, wood chips, sawdust, carbon fiber-containing substances such as vegetable fiber (coconut husk, etc.), zinc chloride, Activated carbon having a complicated porous structure prepared by impregnating with phosphoric acid or the like and performing a dry distillation treatment, having an enormous pore volume, and excellent in adsorption power and water absorption power can be preferably mentioned.

Further, as other charcoal of the adsorbent composition (BS1), various organic compounds and organic waste such as thinned wood which is an organic material, paper sludge and the like are subjected to dry distillation treatment at 400 to 1000 ° C. to obtain silica or silica. A preferable example is a composite-type adsorptive material made of charcoal-silicate containing alumina. In particular, when organic compounds and organic materials are wastes, it is also effective as a method of treating and disposing of wastes, and is an effective means of reusing wastes of organic-containing materials, thus eliminating waste problems. Preferred as a means.

Examples of these organic-containing materials include fruit waste, vegetable waste, rice husk, etc., threshed grain waste, waste discharged from food processing plants, waste clay, liquor, soy sauce, etc. Fermentation residue discharged from the fermentor, manure of livestock such as chicken, pig, cow, waste products discharged from the meat processing plant, fish processing
Waste products discharged from the laboratory, waste products discharged from manufacturers of paper / pulp / fiber cloth and processing manufacturers, organic-containing materials containing high-molecular organic compounds that are various plastics and their processed products, In addition, red tides, plankton, algae and seaweeds, thinned timber, driftwood, tree-pruning wastes, etc. are also included.

General main chemical composition of the organic-containing material adopted in the present invention (normal weight% of dry matter) SiO ₂ : 5.
0 to 30.0, Al ₂ O ₃ : 1.0 to 30.
0, Fe ₂ O ₃ : 0.1 to 10.0, MgO: 0.
A material having 1 to 8.0, CaO: 0.1 to 8.0, and loss on ignition: 10.0 to 85.0 is preferable.
However, the composition is not limited to the contents shown above.

The general main chemical composition (% by weight) of the charcoal or charcoal-silicate material obtained by dry-distilling the organic-containing material of the present invention has a C of 3.0 to 50.0 and a SiO ₂ of 10.0. To 40.0, Al ₂ O ₃ is 5.0 to 3
5.0, Fe ₂ O ₃ is 0.5 to 10.0, MgO is 0.1 to 8.0, and CaO is 0.1 to 8.0.
The specific surface area (cm ² / g) is 2400 or more, and the powder carbon-containing or carbon-silica-containing composition having a 45 μm sieve residue of 40% or less is suitable.

The water-absorbing agent composition (BS2) of the modifying auxiliary composition (BS) optionally added to the modifying material (B) in the present invention includes polyacrylate, vinyl acetate, epoxy. Resin, melamine resin, urea resin, polybutadiene resin, urethane resin, alkyd resin, or a natural resin group alone or in combination of two or more kinds is generally used as a water-soluble organic polymer compound having adsorptive water absorption in a water emulsion system. It can be appropriately selected and adopted from the organic polymer compounds.

The combined use of these water-absorbing agent compositions (BS2) with the modifying treatment material of the present invention is
Similar to the case of 1), it is effective in adsorbing and absorbing the water contained in the hydrous mud (A) in advance and immobilizing it so that the reforming treatment step proceeds smoothly. However, the water absorbent composition (BS
Since 2) is an organic compound, it is poor in durability and requires careful attention when used in departments related to light and heat.

The sulfur oxyacid salt composition (BS3) of the modification auxiliary composition (BS), which is optionally added to the modification treatment material (B) in the present invention, has the following composition formula (5). dQ _{2 / n} O · SO _m · wH ₂ O (5) (In the formula: Q is an alkali metal, alkaline earth metal, or iron group alone or in combination of two or more elements, and d is 1
To 20, n is the valence of the Q element, m is a number of 2 or 3, and w is a number of 12 or less, including zero). Suitable examples thereof include oxyacid salt compounds of sulfur alone or in combination of two or more kinds.

In the modified material (B) of the present invention, the sulfate group of the aluminum sulfate composition (BA) is the calcium composition (B).
It is important because it reacts with the calcium salt of C) to form calcium sulfate dihydrate and lowers the water content ratio in the hydrous mud (A). Therefore, it is also important to further supplement the sulfate radicals necessary for the purpose and use with a sulfur oxyacid salt composition (BS3) other than aluminum salt. In particular, it is important that the sulfur oxyacid salt composition (BS3) is an anhydrous salt, which is important from the viewpoint of the modification treatment effect, and is preferable.

Specific examples of the sulfur oxyacid salt composition (BS3) in the present invention include sodium sulfate, sodium sulfite, potassium sulfate, lithium sulfate, magnesium sulfate, calcium sulfite, among reagents and industrial chemicals. It can be appropriately selected from calcium sulfate, zinc sulfate, barium sulfate, ferrous sulfate, ferric sulfate and the like.

The phosphorus oxyacid salt composition (BS4) of the modification auxiliary composition (BS), which is optionally added to the modification treatment material (B) in the present invention, has the following composition formula (6). _{eG 2 / n O · P 2} O 5 · wH 2 O .................. (6) ( wherein: G is lithium, sodium, potassium, magnesium, calcium, zinc, strontium, barium, silicon, titanium, zirconium , Molybdenum, iron,
Cobalt and nickel elements alone or in combination of two or more, e is a number from 1.0 to 8.0, n is a valence number of G element, and w is a number including zero of 9.0 or less). Suitable examples thereof include phosphorus oxyacid salt compositions composed of a single or a combination of two or more compounds selected from the group of compounds of phosphorus oxyacid salts of basic or normal salt metal elements.

In the modified treatment material (B) of the present invention, the phosphate group of the aluminum phosphate composition (BP) reacts with the calcium salt of the calcium composition (BS) to form calcium phosphate, thereby forming hydrous mud (A). Since it lowers the water content, it is as important as the aluminum sulfate composition (BA). Therefore, it is necessary and important to replenish the phosphoric acid radical necessary for the purpose and use with the phosphorus oxyacid salt composition (BS4).

Specific examples of the phosphorus oxyacid salt composition (BS4) in the present invention include sodium phosphate, potassium phosphate, magnesium phosphate, calcium phosphate, zinc phosphate from among reagents and industrial chemicals. From normal or basic salts of strontium phosphate, barium phosphate, aluminum phosphate, titanium phosphate, zirconium phosphate, molybdenum phosphate, cobalt phosphate, iron phosphate, nickel phosphate, etc. It can be selected appropriately.

Further, in the present invention, the metal products are treated with a phosphoric acid type chemical which is generally used as a surface treatment agent (parkerizing agent) for metal products such as iron (automobiles, vehicles, building materials, home appliances, etc.). The phosphorus oxyacid salt composition (BS4) of the present invention also includes waste sludge containing iron phosphate as a main component, which is the industrial waste (sludges) produced as a by-product. It is also effective from the standpoint of recycling waste.

Furthermore, the phosphorus oxyacid salt composition (BS4) of the modifying auxiliary composition (BS), which is optionally added to the modifying material (B) in the present invention, has the following composition formula: (6-b) sSiO ₂ · P ₂ O ₅ ............ (6-b) (In the formula: s is a number of 1.0 to 8.0) The sustained release of the phosphoric acid component. A powdery silicon phosphate group, which has the property of being highly reactive to alkali, can be preferably used.

The "sustained release property of phosphoric acid content" in powdery silicon phosphate is represented by the following formula (6-c) Y = aX + b (6-c) (wherein X is powdery phosphoric acid). The elapsed time (minutes) up to 120 minutes of a sample solution obtained by stirring and dispersing 1 gram of silicon in 100 cc of 4N sodium hydroxide solution at 25 ° C., and Y represents the phosphoric acid content (P ₂ O ₅ ) eluted in the sample solution. Of the initial phosphoric acid content of the sample solution, which is represented by the cumulative amount of elution (mg / 100 cc), is 200 or less, and the average hydrolysis rate constant a is in the range of 0.2 or more. .

The silicon phosphate in the present invention is preferably a stable compound which releases the phosphoric acid content in the deformable admixture (D) and does not easily hydrolyze in the alkaline composition. Therefore, silicon phosphate has the composition formula (6-
The number of s in b) is in the range of 1.0 to 8.0, 50
Baking in a temperature range of 0 to 1200 ° C. is suitable for controlling the sustained release of the phosphoric acid component.

The number of s in the composition formula (6-b) is smaller than 1.0, and when it is fired at 700 ° C. or lower, it shows deliquescent and tends to lack stability as silicon phosphate. Also,
When the number of s is larger than 8.0 and is fired at 1200 ° C. or higher, the phosphoric acid content is reduced and the function of phosphorus as the oxyacid salt composition (BS4) becomes poor.

The powdery silicon phosphate in the present invention can be surface-treated in advance with a publicly known coating agent known in the art in order to secure stability during storage and sustained release of phosphoric acid content. . In this case, the coating agent may be an organic fatty acid (stearic acid, etc.) or fatty acid salt (calcium stearate, barium stearate, etc.) soluble in an alkaline aqueous solution, and a coupling agent (organosiloxane monomer or polymer silane, titanium). Coupling agent) is 0.0 by the standard method
The coating treatment is preferably performed in the range of 1 to 6%.

The alumina replenishing composition (BS5) of the modifying auxiliary composition (BS) optionally added to the modifying material (B) in the present invention includes the following compositional formula (7) fDO.Al. ₂ O ₃ · wH ₂ O (7) (wherein: D is an alkaline earth metal element, f is a number including zeros of 5.0 or less, and w is a number including zeros of 10 or less). Preference is given to the alkaline earth metal aluminate represented or the hydrate of alumina.

As a specific example of the alumina replenishing composition (BS5) selected in the present invention, an alumina-containing compound soluble in an ionic alkali and having high reaction activity is suitable. Suitable examples of the alumina-containing compound having high reaction activity include aluminum hydroxide or water-containing alumina which is generally produced as an industrial chemical, and aluminum hydroxide which is a by-product in the chemical industry.

Furthermore, the alumina supplement composition (B
As S5), feldspar, mica, various clays, etc., which are a variety of aluminum-containing compounds that are soluble in ionic alkali and have high reaction activity and whose main component is aluminum silicate, can be appropriately added and blended. . Furthermore,
When the hydrous mud (A) to be modified contains a sufficient amount of alumina component soluble in ionic alkali, the hydrous mud (A) is adopted as the alumina supplement composition (BS5). It is also possible.

The functionalizing composition (BS6) of the modifying auxiliary composition (BS) optionally added to the modifying material (B) of the present invention is a powder having a particle size of 100 μm or less. To a pigment, a colorant, an activator, a filler, and a function-imparting agent group, which are composed of powder or granules and add functionality to the modified soil (D), or a combination of two or more kinds of additives. You can

The specific shape of the functionality-imparting composition (BS6) of the present invention is powdery, sandy, lumpy, acicular, columnar,
Examples thereof include spherical or granular, hollow, fibrous, plate-like, flake-like, petal-like, crushed stone-like, deformed or variously shaped powders or powders. However, the functionality imparting composition (BS6) of the present invention is preferably a powder.

The above-mentioned functionality-imparting composition (BS6) is generally selected from materials known and publicly used in the manufacturing fields such as plastics, paints, adhesives, various treating agents, concrete, etc. Then, it can be appropriately selected from pigments, colorants, activators or fillers adopted in these fields in manufacturing, processing and construction.

Examples of the function-imparting composition (BS6) suitably adopted for the modifying treatment material (B) of the present invention are shown below.
The function-imparting composition (BS6) adopted in the present invention is not limited to the examples shown here, and the purpose of the present invention
Addition additive materials that are known or publicly used in the art can be adopted according to the application within a range that does not impair the object of the present invention.

As the pigment, various extenders generally known and used in the art can be used. Inorganic pigments include carbon black, titanium oxide, zirconium oxide, various iron oxides, iron hydroxide, red iron oxide (iron oxide),
Magnetic materials, chrome oxide, lead chromate, yellow lead, ultramarine, baked pigments such as metal oxides, inorganic colored pigments, and powders such as metals, alloys, non-oxides (nitrides, carbides), etc. be able to.

Further, fine silica powder, white carbon, fused silica, silicate, clay powder, alumina, fused alumina, calcium, calcium carbonate, magnesia, oxides such as zinc oxide and magnetic iron oxide, and the like. It can be selected according to the purpose from carbonate compounds such as shell powder and pigments such as non-oxides such as boron nitride and silicon carbide.

Examples of organic pigments include insoluble azo pigments, soluble azo pigments, condensed polycyclic pigments, quinacridone pigments, isoindolinone pigments, and blue and green pigments which are generally used in red and yellow. Examples of cyanine blue, cyanine green and the like used in. Among them, pigments having strong alkalinity are preferable.

As the colorant, the above-mentioned inorganic pigments and organic pigments can be used, but known organic coloring compounds generally used in the art, inks of each color, natural or synthetic dyes, etc., alone or in combination of two or more. A desired hue can be imparted to the solidified product by selecting from the combination of

As the activator, boric acid-containing compounds (zinc borate, calcium borate, etc.), lead-containing compounds, chromic acid-containing compounds or phosphoric acid-containing compounds (iron phosphate, zinc phosphate, silicon phosphate, etc.) You can choose powder products such as. When choosing these acidic salts, the calcium composition (B
It is suitable as a neutralizing agent for neutralizing the alkali component of C) and because it can be expected to form boron silicate by reacting with a silicate.

Examples of the filler include flakes, pastes and powders of metals and alloys such as stainless steel, silicon, zinc, aluminum, nickel and iron, and further glass powder, glass cullet, ceramics powder, ceramics cullet, diamond powder, oxidation. Silicon (silica powder, silica powder, silica powder, silica fume, fused silica powder, etc.), magnesia powder, shell powder, zircon sand, rock powder (serpentine, andesite, vermiculite, etc.), various clays (bentonite, smectite, gyrrome) , Refined products such as kibushi clay), calcined clay (calcined products such as bauxite, montmorillonite, kaolin), gypsum, calcium phosphate, magnesium phosphate, barium sulfate, aluminum fluoride, calcium silicate, magnesium silicate, barium silicate , Barium carbonate, barium hydroxide, ke Aluminum, iron ore,
It can be appropriately selected from powders of various compositions such as glaze, talc, mica, and fly ash having a particle size of 200 μm or less.

As the functionalizing agent adopted in the present invention,
As a material that imparts various functionalities to the solidified body of the present invention,
Generally, a functionalizing agent can be mentioned from various fields such as processing of plastics, coatings, adhesives, various processing agents, cement processing, etc., and organic compounds or inorganic compounds publicly / publicly adopted in the art. .

The function-imparting agent can be selected from publicly known and officially used inorganic materials and organic materials which are used as function-imparting agents in the art. When these functionality-imparting agents are liquids, these liquids are supported on the specific powder and the porous carrier or the like prepared and formed by the technique of the present invention to form a composite powder prepared in advance. It is also preferable to adopt it.

Specific examples of the function imparting agent include rust preventive agents,
Antioxidant, anti-slip agent, blocking material, non-combustible / flame retardant, ultraviolet / infrared absorber, far infrared ray generation / prevention agent, anti-fog agent, repellent, insecticide, luminescent pigment, luminescent material, photocatalyst, heat conduction Body, conductor, dielectric, electromagnetic wave absorbing / shielding agent, insulating pigment, heating element, expanding body, elastic body, foaming agent, foaming agent, antistatic agent, activator, adsorbent, deodorant / deodorant, Antimicrobial agents,
Among industrial chemicals such as fragrances, anti-condensation agents, snow melting agents, freeze-thaw agents, water reducing agents, water repellents, fertilizers, plant / microorganism seeds, various chemicals / chemicals, arsenic immobilization compositions composed of iron salts, etc. You can choose from.

As the fibrous reinforcing composition (BS7) of the modifying auxiliary composition (BS), which is optionally added to the modifying material (B) in the present invention, the strength of the modified soil (D) is Examples of the fibrous reinforcing agent include metal fibers, glass fibers, carbon fibers, aramid fibers, vegetable fibers, animal fibers or mineral fibers, which are fibrous materials that reinforce the fibers, or a combination of two or more kinds. .

In particular, when the modified mud is to be applied to a secondary processed product (structure), glass fibers whose use is restricted by deterioration due to alkali as in the case of cement are also included in the present invention. Since the alkaline component is suppressed to a low level in the secondary processed product using the modified material of (1), the glass fiber does not deteriorate and can be suitably adopted. This phenomenon is caused by the filled aggregate composition (BS8) described later.
This is a phenomenon that similarly occurs when waste glass and cullets in the above are processed into secondary products by the modified material of the present invention. Fibers and aggregates of glasses are used in combination with the modified material of the present invention. Time is also very effective.

The filler-containing aggregate composition (BS8) of the modifying auxiliary composition (BS) optionally added to the modifying material (B) in the present invention has a particle size of 100 μm or more and 7
It has a bulk specific gravity of 0.5 to 2.
A preferred example is a filled aggregate 2 having a filling property as an aggregate with a sand particle in the range of 5 g / cc.

As typical examples of the filled aggregate composition (BS8), there are generally used natural aggregates such as sand and stone having various particle sizes, processed aggregates such as crushed stone, and the like. Examples thereof include improved aggregates, lightweight fine aggregates that are processed aggregates of lightweight aggregates such as pearlite and vermiculite obtained by heat-processing vermiculite, and coarse-grained volcanic ash. Furthermore, when the modified soil of the formed mud is required to have weight as heavy stones or fishing reefs, sand grains or granular bodies such as iron ore and manganese ore having a large specific gravity can be selected and adopted.

Also, wastes containing silicate as a main component can be preferably adopted as the aggregate. For example, slag cullet in which incineration ash of waste is slag by melting method,
Recycled products such as waste glass (automobiles, home appliances, bottles, glass plates for building materials, etc.) and culletized glass scraps, and scrap products such as cement products and ceramic products such as pottery products, and granules of waste products Recycled material that has been processed into a shape,
Examples include particle size control products such as construction waste soil and aggregates synthesized from various waste materials.

Filled aggregate composition (BS8) in the present invention
As for, it is also possible to select "aggregate" to be mixed with concrete products. At this time, the "aggregate" is classified into "fine aggregate" composed of sand / crushed stone having a particle size of 5 mmφ or less and "coarse aggregate" composed of gravel / crushed stone having a particle size of 5 mmφ or more. In the present specification, "coarse aggregate" is regarded as pure bulking aggregate,
Since the effect of adopting coarse aggregate is common knowledge in the art and does not impair the essential characteristics of the modified treated soil, the adoption of “coarse aggregate” is the filler aggregate composition of the present invention ( It is not incorporated in BS8).

The solidifying material composition (BS9) of the modifying auxiliary composition (BS), which is optionally added to the modifying material (B) in the present invention, includes alkali metal oxides and alkaline earth metals. A cementing material such as a commercially available portland cement, which is composed of a combination of metal oxides, silica, alumina and a group of sulfur oxyacid salts and exhibits hydraulic properties at room temperature, can be suitably adopted.

For the purpose of the present invention, it is important that the solidifying material composition (BS9) of the present invention is a chromeless room temperature hydraulic solidifying material. As a room temperature hydraulic chromeless solidifying material,
Inventive technology of the present inventors (JP-A-11-246261, JP-A-11-263661, Japanese Patent Application No. 2000-35193)
1, a room temperature hydraulic solidifying material according to February 16, 2001, etc.) can be suitably selected.

A typical example of the solidifying material composition (BS9) is in the technology invented as "hydraulic silica-based binder" (Japanese Patent Laid-Open No. 11-263661), which includes a silica-alkali composition and an aluminate composition. A mixed composition consisting of
Further, a liquid or powdery solidifying material composition (BS9-a), which is composed of a mixture in which water or an additive material is added if necessary and is homogeneously dispersed, can be preferably mentioned.

Further, another typical example of the solidifying material composition (BS9) is in the technology (Japanese Patent Application No. 2000-351931) invented as an "alkaline curing agent", which is used for the silicate material to be solidified. Calcium composition and liquid or powder solidifying material composition (BS9-b) mixed in a three-part composition of an alkaline composition and an aqueous composition, and a four-part composition in which a curing auxiliary composition is further added if necessary (BS9-b ) Can be preferably mentioned.

Further, another typical example of the solidifying material composition (BS9) is in the technology (Japanese Patent Application No. 2001-83816) invented as "normal temperature hydraulic solidifying material", which is a sulfur oxyacid salt composition, A solidifying material composition (BS9) prepared in one pack by an alkali composition, a calcium composition and a water-based composition (AD) which has a four-part composition and a five-part composition obtained by adding a solidification auxiliary composition to the above four-part composition. -C) can be mentioned suitably.

The composite auxiliary composition (BS10) of the auxiliary modification composition (BS), which is optionally added to the modification treatment material (B) in the present invention, is the above-mentioned adsorbent composition. (BS1), water absorbing agent composition (BS2), sulfur oxyacid salt composition (BS3), phosphorus oxyacid salt composition (BS4), alumina replenishing composition (BS5), function imparting composition (BS6) , Fibrous reinforcing composition (BS7), filled aggregate composition (BS8) and solidifying composition (BS
Suitable examples thereof include auxiliary compositions that are complexed by a combination of two or more members of the group 9).

The composite auxiliary composition (BS1 according to the present invention
0) is various modifying auxiliary compositions (B) depending on the purpose and application required for the solidified product of the present invention and auxiliary improvement.
By using S) in combination, it is possible to promote the combined use of auxiliary improvement and to expect a synergistic effect on the conditions for forming a solidified product and the physical properties. The content of the combination of the composite auxiliary composition (BS10) adopted in the present invention, the quantitative blending ratio, and the like can be determined by preliminary experiments conducted in advance.

Modification treatment material (B) adopted in the present invention
Is 10 to 200 parts by weight of the aluminum sulfate composition (BA) and 0.1 to 50 parts by weight of the aluminum phosphate composition (BP), and if necessary, to 100 parts by weight of the calcium composition (BC). And a modification auxiliary composition (BS) 1
Or 500 parts by weight is preferably mixed and mixed to prepare a powdery one-pack composite composition in advance.
It is effective as a reforming treatment material for hydrous mud (A).

Regarding the compounding ratio of the modified composition (B) which is a composite composition, when the compounding ratio of the aluminum sulfate composition (BA) is less than 10 parts by weight with respect to 100 parts by weight of the calcium composition (BC). , The pH value of the treated modified soil (D) is 1
It cannot be modified to a low value of less than 1. Furthermore, when the modified phosphate (B) is not blended with the aluminum phosphate composition (BP), the pH value of the modified soil (D) cannot be lowered to a low value of less than 11. However, the apparent strength of the modified soil (D) cannot be improved.

With respect to the compounding ratio of the modified treatment material (B) which is a composite composition, 200 parts by weight or more of the aluminum sulfate composition (BA) and phosphoric acid are added to 100 parts by weight of the calcium composition (BC). Even if the aluminum composition (BP) is mixed in a large amount of 50 parts by weight or more, no particular effect can be expected for the reforming of the modified soil (D), and rather the product of the reforming material (B). It is not preferable because it tends to induce higher prices.

When the modifying treatment material (B) of the present invention is adopted to modify the hydrated mud (A) which is a hydrated soil, 100 parts by weight of the hydrated mud (A) is used to treat the calcium composition (B).
C), an aluminum sulfate composition (BA) and an aluminum phosphate composition (BP), which is a three-component composite composition, and if necessary, a modification auxiliary composition (BS) is added to the three-component composite composition. The powdery one-pack modifying agent (B) prepared in the four-component composite composition in an amount ratio of 2 to 60 parts by weight, preferably 5 to 40 parts by weight at room temperature. By contact mixing, the free water contained in the hydrous mud (A) is reformed to transform the hydrous mud (A) into a non-fluidic modified soil (D) whose pH value is secured to be less than 11. It is possible to change the quality.

[0154] When the reforming treatment material (B) of the one-packed composite composition of the present invention is contact-mixed with the water-containing mud (A) at room temperature to carry out the reforming treatment, the mixing ratio is 100 g of the water-containing mud (A).
Even if the modified treatment material (B) is mixed in an amount of less than 2 parts by weight, the effect of the modification treatment is not expected, and more than 60 parts by weight is added in an added amount. However, no particular effect can be expected, and rather there is a tendency for cost disadvantages to occur.

The method, means, and method for contact-mixing the modified treatment material (B) of the present invention with the hydrated mud (A) at room temperature include the generation location and hydrated state of the hydrated mud (A) to be treated. Depending on the purpose of treatment, purpose of use of treated soil, required performance, required functions, etc., generally, a well-known or publicly used mixer, stirrer, kneader, disperser, etc. It can be easily achieved by appropriately selecting and adopting from among the methods, means, construction methods, etc. that can uniformly mix or knead each component of the raw material using a kneader / mixer or a mixing device by a deep mixing method. It

Generally, the treatment device for directly subjecting the modifying treatment material (B) of the present invention to the hydrous mud (A) for the reforming treatment does not need to be a special device, and conventional cement and lime are not used. A kneading machine, a mixing machine, a stirrer or a dispersing machine which is generally used when the water-containing mud (A) is subjected to the reforming treatment can be easily achieved by suitably adopting it.

Although it depends on the place of generation of the water-containing mud (A), the water-containing state, the purpose of treatment, the purpose and use of the modified soil (D), the required performance and function, etc., the water-containing mud (A) When the place of occurrence is underground, by suitably adopting an injection device and a filling device for solidifying materials such as deep mixing method and high pressure injection stirring method that have been widely used in the civil engineering industry such as ground improvement,
The reforming treatment of the hydrous mud (A) in the ground can be suitably performed.

The modified treatment material (B) of the present invention is a sludge, a construction sludge, a high water content sludge or the like, which is generated in a large amount and is in need of treatment and disposal, and a water content mud or the like in a farmland such as a rice field. When mixed with water, it consumes a large amount of energy, which is a problem in the prior art, environmental pollution of harmful hexavalent chromium, non-solidifying in soil containing organic matter, high alkalinity of modified soil, and organisms with high alkalinity. The purpose is to eliminate the destruction of the usage cycle, etc., and perform a reforming treatment on the reformed soil (D).

Therefore, in the present invention, it is the main purpose to modify the modified soil (D) with sludge containing a large amount of water and construction sludge, high sludge containing water, etc. Is the purpose. However, at the same time, by modifying various hydrated mud into modified soil (D) suitable for each purpose of use, not only the hydrated mud can be treated but also a product that can effectively reuse the hydrated mud. It is in the place of providing as.

An example of a specific application of the modified soil (D) of the present invention, which is non-fluid and has a pH value of less than 11, obtained by modifying the fluid or plastic hydrated mud (A) is as follows. The modified soil (D) modified by the technique of the present invention is shown in FIG.
The use of is not limited to the use shown here.

Hydrous mud (A) such as sludge, construction sludge and high water content sludge, which are generated in large quantities and are in need of treatment and disposal, are non-fluid and have a pH value of less than 11 at the generation site. Corresponding to reclaimed soil at the site of occurrence, roadbed soil such as roads and sites, embankment such as revetments and levees, granulated products such as lightweight aggregates, concrete products, etc. by modifying the modified soil (D) It can be applied to applications such as secondary processed products, various building materials, tiles, interlocking, bricks, etc., such as the construction of ridges in farmland such as rice fields.

Further, since the modified material (B) of the present invention is hardened and solidified by contacting with water, the modified material (B) containing various aggregates and the like is mixed as necessary. It is also effective to pack it in a linen bag, etc. and use it as a sandbag to prevent leaks, including disaster prevention.

[0163]

[Physical property evaluation test method of the present invention] Hereinafter, the "water content ratio" and the "pH" of the hydrous mud (A) or the admixture which has been subjected to the modification treatment for a predetermined time and used as the sample, which were adopted in this Example, are used.
The test method for "value" was according to the method shown below.

"Water content ratio": The water content ratio is 1 after taking a fixed amount of about 20 to 30 g of a sample that has been mixed and contacted for a predetermined time.
Moisture was volatilized by drying in a dryer at 10 ± 5 ° C. for at least 12 hours, and the volatilized water content of the test sample was determined on the weight basis from the weight loss at this time, and the water content ratio was calculated by the following formula. Water content ratio = [volatilized water content (g)] / [sample (g) -volatilized water content (g)] x 100

"PH value": The pH value of the hydrated mud (A) or each modified modified soil (D) is the plastic or fluid hydrated mud (A) or each modified modified soil. Take a predetermined amount of soil (D), add 5 times the amount of distilled water to the collected soil, disperse the collected soil sufficiently in distilled water and let it stand for 10 minutes, then measure the pH value of the supernatant with a pH meter. Then, the value is shown.

[0166]

[Examples] In the following, specific examples of the technology for treating the modified treatment material (B) and the hydrated mud (A) will be shown in the present embodiment. The specific examples shown in the reference examples and examples adopted in the present invention are not limited to the examples shown here.

In addition, the reforming auxiliary composition (BS) [adsorbent composition (BS1), water absorbing agent composition (B) adopted in the present invention is used.
S2), sulfur oxyacid salt composition (BS3), phosphorus oxyacid salt composition (BS4), alumina supplement composition (BS
5), 10 of the functional imparting composition (BS6) fibrous reinforcing composition (BS7), the filler aggregate composition (BS8), the solidifying composition (BS9) and the composite auxiliary composition (BS10).
The contents of “Type” are shown in advance in the following reference examples. Specific examples of the composite auxiliary composition (BS10) are shown directly in Examples.

Reference Example 1 In this Reference Example, the one-pack reforming treatment material (B) of the present invention is added and blended as necessary to exert an auxiliary effect on the reforming of the hydrous soil (A). The adsorbent composition (BS1) and the water-absorbent agent composition (BS2) that are the quality auxiliary composition (BS) will be described.

As a silica gel or alumina gel which is an adsorbent composition (BS1), a powder which is a synthetic inorganic compound having a large non-surface area which exhibits a dehydrating / adsorbing action among industrial chemicals commercially available as an adsorbing / dehydrating agent. Silica gel (BS1-1) and alumina gel (BS1-
I chose 2).

As the zeolite which is the adsorbent composition (BS1), aluminosilicate is used as a zeolite among commercially available industrial chemicals.
Synthetic zeolite (BS1-3a), which is a fine powder with a secondary particle size of 20 μm or less, and is produced in Fukushima Prefecture Natural zeolite (BS1-3b) was chosen.

As the clay minerals which are the adsorbent composition (BS1), (Na, Ca _1/2 ) _0.33 (Al _1.67 ) with a polysiloxane bond centered on aluminum silicate.
Mg _0.33 ) Si ₄ O ₁₀ (OH) _{2 has} a compositional structural formula (interlayer water is omitted), and has a 2: 1 layer type of 2 octahedron type or 3 octahedron type of pyrophyllite, talc, The structure is mainly composed of ferrosilicate minerals such as smectite dioctahedral type montmorillonite and beidellite, which are classified into groups such as smectite, vermiculite, mica, and chlorite, and the distance between positive and negative charges is large. Thus, the dry powdery layered clay minerals (BS1-4), which has a weak interaction force and easily causes cation exchange, is widely used and easily available as a refining agent for oil components, was selected.

As the charcoal which is the adsorbent composition (BS1), activated carbon (BS1-5a), which is a powder of a commercial industrial chemical and has water purifying / adsorbing power, and paper sludge of industrial waste are dry distilled at about 1000 ° C. A complex type carbon mono-silicate (BS1-5b) which was powdered in a treated and carbonized state and had an adsorption force for water and oil was selected. The main components and specific surface areas of the adsorbent compositions (BS1) selected above are shown in Table R1 below for reference.

[0173]

As the organic polymer compound which is the water-absorbing agent composition (BS2), a water-soluble polyacrylic acid salt (BS2-1) and natural cellulose which are commercially available industrial chemicals and which absorb water by enabling water emulsion. Of water-soluble cellulose derivative (BS2-
I chose 2).

Reference Example 2 In this Reference Example, the one-pack reforming treatment material (B) of the present invention was additionally compounded, if necessary, to have an auxiliary effect in reforming the hydrated soil (A), particularly reforming. Against the phenomenon that the modified soil (D) is alkaline due to the calcium composition (BC) in the treated material (B), it exerts a neutralizing effect to shift the pH value to less than 11, and also a dehydrating effect. A sulfur oxyacid salt composition (BS3) containing a sulfur oxyacid salt compound and a phosphorus oxyacid salt composition (BS4) containing a phosphorus oxyacid salt compound will be described.

[0176] oxyacid salt composition of sulfur (BS3) in which as a representative of iron salt of sulfuric acid as sulfate, iron sulfate from the commercially available industrial chemicals and reagents (II) [FeSO 4 _· 7
H ₂ O] (BS3-1), iron sulfate (III) [Fe
_{2 (SO 4) 3 · 9H} 2 O] (BS3-2), iron sulfate by-produced in the manufacturing industry of titanium oxide (II) [FeS
_{O 4 · 7H 2 O] (} BS3-3) , as well as iron sulfite (I
_I) [FeSO 3] chose (BS3-4).

In the modified material (B) of the present invention, the purpose is to render the hydrous mud (A) non-fluidized by the dehydrating effect, and to remove the sulfuric acid in the oxyacid salt composition (BS3) of the present sulfur. It is preferable that the iron salt is an anhydrous salt, and basically, the iron salt of sulfuric acid is modified to an anhydride by dehydration treatment at a low temperature, and then the one-pack composite composition to be the modified treatment material (B) is prepared. did.

As the phosphoric acid compound which is the phosphorus oxyacid salt composition (BS4), from among commercially available reagents and commercially available industrial chemicals, phosphorus oxyacid salts of various metal elements shown in Table R2 below and bodies in the automobile industry are listed. We selected phosphate sludge, which is an industrial waste that is discharged as a by-product from the groundwork pretreatment (parker rising). Since the phosphate sludge is recovered as a water-containing substance, it was dried at a low temperature to give an anhydrous product, which was then combined with the modified material (B).

[0179]

As another embodiment of the phosphorus oxyacid salt composition (BS4), silica powder, which is an acid-treated acid clay of ferrosilicate, and an industrial phosphoric acid solution are used as raw materials, and the following preparation conditions are used. Five types of silicon phosphates (BS4-18 to 22) having "sustained release of phosphoric acid content" prepared in (4) were selected.

As the silica raw material for silicon phosphate, sillphonite recovered by acid treatment of acid clay [Mizusawa Chemical Co., Ltd.]
Manufacturing: Typical composition (%) SiO ₂ 93.0, Al ₂ O ₃
1.5, Fe ₂ O ₃ 0.3, MgO 0.3, Ca
O 0.2, Ig. Loss 3.7], and a commercial phosphoric acid solution for industrial use [H ₃ PO ₄ concentration 85.0%] as the phosphoric acid raw material.
Was selected and both were homogeneously mixed so that the molar ratio of SiO ₂ / P ₂ O ₅ was 2.0 or 3.0.

Then, after drying at 170 to 200 ° C. for 60 minutes, a rotary kiln is performed at 800 to 1100 ° C. for 30 minutes.
It was calcined for 1 minute to synthesize silicon phosphate. Next, each of the synthesized silicon phosphates was roughly crushed and then crushed using a hammer impact crusher so as to pass through a 200 mesh sieve, and 5 kinds of powdery silicon phosphates were collected to obtain a sample.

Each of the silicon phosphates prepared here was identified by X-ray diffraction to have SiP ₂ O ₇ as the main component. In addition, "sustained release of phosphoric acid content" of each silicon phosphate depending on the preparation conditions (molar ratio and firing temperature)
(Constants a and b) are measured and the results are also displayed in Table R2.

[0184]

[Reference Example 3] In this Reference Example, an auxiliary effect was added to the one-pack reforming treatment material (B) of the present invention (B), if necessary, to modify the hydrous mud (A), especially Alumina, which is a component required for quality, is supplemented by reforming hydrated mud (A) into non-fluidized modified soil (D), ensuring a pH value of less than 11 and exhibiting a dehydrating effect. The alumina replenishing composition (BS5) which is the composition (BS) will be described.

The alumina replenishing composition (BS5), an alkaline earth metal aluminate or alumina hydrate, can be prepared from industrial chemicals such as aluminum hydroxide [Al (O
H) ₃ ] (BS5-1), hydrated aluminum oxide [A
_{l 2 O 3 · nH 2 O} ] (BS5-2), calcium aluminate [Ca ₃ [Al _{(OH) 6] 2]} (BS5-3)
Alternatively, magnesium aluminate [Mg [AlO ₂ ]
2] (BS5-4) was selected.

Reference Example 4 In this Reference Example, various physical properties were additionally added when reforming the hydrated mud (A) by adding it to the one-pack reforming treatment material (B) of the present invention as needed. Is a modified auxiliary composition (BS) that exhibits the dehydration effect by modifying the hydrated mud (A) into the non-fluidic modified soil (D) and ensuring a pH value of less than 11. The functionality-imparting composition (BS6) will be described.

As the function-imparting composition (BS6), it is well known that it can exhibit various addition properties and various functional properties suitable for the purpose of modifying the hydrous mud (A) of the present invention and its application.
We selected the commonly used pigments, colorants, activators, fillers and function-imparting agents. Selected pigments, colorants, activators, fillers and function-imparting agents are shown in Table R3.

In the present invention, the composition for imparting functionality (BS
When adopting 6), the composition for imparting functionality (BS6)
The content and type, the mixing ratio, and the procedure can be determined by preliminary experiments. further,
The functionalization composition (BS that can be adopted in the present invention
6) is wide-ranging and is not limited to the specific example shown in this reference example.

[0190]

[Reference Example 5] In this Reference Example, when the water-containing mud (A) was modified by being optionally added to the one-pack reforming material (B) of the present invention, the modified soil (D) (2) is a reforming auxiliary composition (BS) for improving the physical properties such as the strength of (1), etc., and reforming the hydrous mud (A) into a non-fluidized modified soil (D) to secure a pH value of less than 11. The fibrous reinforcing composition (BS7) will be described.

As the fibrous reinforcing composition (BS7), about 0.1 × 1 to 3 mm of stainless fiber (BS7-1) is selected from fibrous products generally marketed in the art as a fibrous reinforcing agent. ), Glass fiber (BS7-2), carbon fiber (BS7-3), vegetable fiber such as cotton (BS7-4), animal fiber such as wool (BS7-5) and pulp fiber such as vegetable wood (BS7-). 6 types of 6) were selected.

Reference Example 6 In this Reference Example, when the one-pack reforming treatment material (B) of the present invention was added and blended as needed to reform the hydrous mud (A), the modified soil (D (2) is a reforming auxiliary composition (BS) for improving the physical properties such as the strength of (1), etc., and reforming the hydrous mud (A) into a non-fluidized modified soil (D) to secure a pH value of less than 11. Filled aggregate composition (B
S8) will be described.

As the filler aggregate composition (BS8), it is a filler which is generally commercially available in the civil engineering and construction industries and is adopted, and it is an aggregate including lightweight aggregate and has a particle size of 100 μ to 7 mm. And the bulk specific gravity is 0.3 to 5.
It was selected from fillers and aggregates in the range of 0 g / cc. In this example, large coarse aggregates having a particle size of 7 mm or more were excluded from the aggregates because they are not particularly targeted in the present technology.

Specific examples of the filled aggregate composition (BS8) include sand (BS8-1) and gravel (BS8) shown in Table R4.
-2), perlite (BS8-3), vermiculite (BS8-4), glass wastes such as glass bottles of industrial waste, crushed and refined glass waste (BS8-5), waste incineration ash prepared by melting slag Granules (BS8-
6) Granules (BS8-7) obtained by granulating fly ash discharged from a thermal power plant with an inorganic binder such as an alkaline solidifying agent, and coarse granules of natural iron ore (BS7-9) having a large specific gravity. There are eight types

[0196]

Reference Example 7 In this Reference Example, when the one-pack reforming treatment material (B) of the present invention was additionally compounded as needed to reform the hydrous mud (A), the modified soil (D (2) is a reforming auxiliary composition (BS) for improving the physical properties such as the strength of (1), etc., and reforming the hydrous mud (A) into a non-fluidized modified soil (D) to secure a pH value of less than 11. Solidifying material composition (BS
9) will be described.

As the solidifying material composition (BS9), Portland cement (B) which is widely used as a hydraulic solidifying material is used.
S9-1) and also commercially available as a hydraulic solidifying material (manufactured by Natto Laboratories: trade name "Ecolton DS")
Pollution-free chromeless solidification material (BS9-2)
I chose two types.

In particular, in the chromeless solidifying material (BS9-2), the harmful heavy metals due to the zeolite produced at the time of forming the solidified material by the solidifying material are contaminated by the heavy metals due to the property of being immobilized in water. It is effective for the reforming treatment of water-containing mud (A).

[Example 1] [0200] In this example, a powdery one-pack composite containing, as a main component, a calcium composition (BC), an aluminum sulfate composition (BA) and an aluminum phosphate composition (BP). The modifying material (B) prepared in the composition will be described. Next, the modified treatment material (B) prepared by the three parties is contact-mixed with the hydrous mud (A) at room temperature to form an admixture, and the hydrous mud (A) is reformed to convert the hydrous mud (A). The treatment process for transforming the modified soil (D) which is non-fluid and has a pH value of less than 11 will be described.

The calcium composition (B
C) is quicklime (BC) obtained by firing limestone at about 1200 ° C.
-1) and two types of modified lime (BC-2) obtained by decarboxylating scallop shells at about 1000 ° C were selected. As the aluminum sulfate composition (BA) adopted in this example, potassium alum (K) which is a double salt of commercially available industrial chemical powder potassium sulfate and aluminum sulfate is used.
Two kinds of Al (SO ₄ ) ₂ ; BA-1) and powdery aluminum sulfate (Al ₂ O ₃ 17% or more; BA-2) were selected.

As the aluminum phosphate composition (BP) adopted in this example, powdery anhydrous aluminum phosphate (AlPO ₄ ; BP-1) commercially available as an industrial chemical and basic aluminum phosphate (Al ( OH) ₃・ A
Two types were selected: 1PO ₄ ; BP-2). As the modifying treatment material (B) in the present invention, a composite composition was prepared in the form of powder, which was compounded in the proportions shown in Table 1 below and was made into a powder to prepare a sample.

As the hydrous mud (A) to be modified, the water content ratio of 100% (water content 5
0% by weight) marine sludge (AH) [specific gravity = 1.35] was selected. Modification of hydrous mud (A) is performed by sludge (AH)
To 100 parts by weight of the water-containing mud (A) of Example 1, the modification treatment material (B) of the sample was uniformly mixed and contacted with the kneading machine for 10 minutes at the ratio shown in Table 2, and each modification treatment was carried out. Each blend was prepared. The water content ratio and pH value of each admixture, which had been subjected to the modification treatment for 24 hours, were measured, and the results are also shown in Table 2.

In order to compare the modification treatment of the present invention with the modification treatment material (B) of the present invention, commercially available Portland cement (BH-1), powder of only quicklime (BH).
-2), and a modified material (B) containing no aluminum phosphate composition mainly composed of quicklime and aluminum sulfate (B).
Three types of H-3) were selected as comparative examples.

In the comparative example as well, the amount ratio shown in Table 2 was applied to 100 parts by weight of the sludge (TH) hydrous mud (A) in the same manner as in the case of the modified material (B) of the present invention. The mixture of each comparative example was prepared by uniformly mixing and contacting each for 10 minutes with a kneader. The water content ratio and pH value of each blend of the comparative example prepared here were measured and also shown in Table 2.

[0206]

[0207]

As a result of the above, when the hydrous mud (A) is modified with the modified material (Portland cement, quick lime, quick lime containing aluminum sulfate) according to the prior art (comparative example), the modified soil (D) is obtained. Has a high pH value of 11 or more, reuse as modified soil (D) is limited as waste, and secondary pollution due to high alkali may occur.

However, the modified soil (D) modified by the modifying material (B) of the present invention has a low water content and a pH value as low as less than 11. Therefore, it is well understood that the object of the present invention is effectively achieved when the mud-like material (A) is modified with the modifying material (B) of the present invention.

[Example 2] In this example, the modification composition was further composed mainly of the calcium composition (BC), aluminum sulfate composition (BA) and aluminum phosphate composition (BP). (B), which is prepared as a powdery one-pack composite composition composed of four components including the compound (BS)
Will be described. Next, the prepared modified treatment material (B) is contact-mixed with the water-containing mud (A) at room temperature to form a mixture,
The treatment process of modifying the hydrous mud (A) to transform the hydrous mud (A) into the non-fluidic modified soil (D) having a pH value of less than 11 will be described.

Calcia composition (B
C), the aluminum sulfate composition (BA), and the aluminum phosphate composition (BP) are the compositions adopted in Example 1 [quicklime (BC
-1), modified lime (BC-2), potassium alum (KAl (S
O ₄ ) ₂ ; BA-1), aluminum sulfate (Al ₂ O ₃
17% or more; BA-2), aluminum phosphate (Al
PO ₄ ; BP-1), basic aluminum phosphate (Al
(OH) ₃ .AlPO ₄ ; BP-2] was similarly selected.

[0212] The modification auxiliary composition (B
As S), the following compositions were selected from the specific examples shown in Reference Examples. Adsorbent composition (BS
As 1), synthetic zeolite (BS1-3a) and carbon-silicate ash (BS1-5b) were selected.

As the sulfur oxyacid salt composition (BS3), anhydrous iron (II) sulfate (BS3-1) was selected. Examples of the phosphorus oxyacid salt composition (BS4) include disodium hydrogen phosphate (BS4-4), dried phosphoric acid sludge (BS4-17) and silicon phosphate (BS4-21).
I chose. Aluminum hydroxide (BS5-1) and calcium aluminate (BS5-3) were chosen as the alumina supplement composition (BS5).

As the function-imparting composition (BS6), red iron oxide (BS6-3) which is a pigment, calcium silicate (BS6-11) which is a filler, boron phosphate (BS6-14) which is an activator, and Paraffin-based emulsion (BS6-18) and iron hydroxide (II
I) (BS6-22) was selected.

Glass fiber (BS7-2) was selected as the fibrous reinforcing composition (BS7). Filled aggregate composition (B
As S8), river sand (BS8-1) and molten slug (BS8-7) were selected. As the solidifying agent composition (BS9), Portland cement (BS9-1) and Ecolton DS (BS9-2) were selected. The composite auxiliary composition (BS10) is shown in the formulation example of Table 3.

Each modification auxiliary composition (BS) selected above
In the mixing ratios shown in Table 3, a calcium composition (BC), an aluminum sulfate composition (BA), and an aluminum phosphate composition (BP).
The above three materials were homogeneously mixed to prepare a one-pack modified material (B), which was used as a sample. As the hydrous mud (A) to be modified, the marine sludge (AH) adopted in Example 1 was selected.

In the same manner as in Cold Example 1, 100 parts by weight of sludge (AH) containing water-containing mud (A) was treated with the modification treatment material (B) as a sample. Mix and contact in a kneading machine for 10 minutes at the proportions shown in Table 3 to homogenize and contact,
Each modified mixture was prepared. The water content ratio and the pH value of each admixture, which had been subjected to the modification treatment for 24 hours, were measured, and the results are also shown in Table 4.

[0218]

[0219]

As a result of the above, as the modifying treatment material (B) of the present invention, the calcium composition (BC) and the aluminum sulfate composition (B) were used.
A powdery one-pack composite composition composed of four members obtained by adding the modifying auxiliary composition (BS) to the three members of (A) and the aluminum phosphate composition (BP) was prepared. Next, the modified soil (D) prepared by mixing the modified treatment material (B) prepared here with the hydrous mud (A) by contact mixing at room temperature has a low water content ratio, is non-fluid, and has a pH value. It is secured at a low value of less than 11,
It is well understood that situations in which the objects of the invention have been effectively achieved.

[Embodiment 3] In this embodiment, the type of hydrous mud (A) to be modified is changed, and the calcium composition (BC), aluminum sulfate composition (BA) and aluminum phosphate composition are changed. (3) Modification treatment material (B) with a substance (BP) or a modification treatment material (B) with a ternary constitution containing a modification auxiliary composition (BS) is contacted with hydrous mud (A) at room temperature. Regarding the treatment process in which the mixture is mixed to form a mixture, and the hydrated mud (A) is subjected to a reforming treatment to transform the hydrated mud (A) into a non-fluidic modified soil (D) having a pH value of less than 11 explain.

The hydrated mud (A) to be modified in this example is mainly composed of a silicate-based material in a plastic or fluid state having a water content of 35% or more in terms of water content. It is a water-containing mud that has a water content of 100% (AS) collected at the construction site of the Tokyo subway, a water content of 200% sludge (AK) collected in Kasumigaura, Tsuchiura City, Ibaraki Prefecture, and a rice field in Mito City, Ibaraki Prefecture. Aqueous clay with a water content of 80% (A
C) Water content of 13 dredged at Okochi Dam in Tokyo
Four types of 0% sludge (AD) were selected.

The modified material (B) adopted in this example is
The modified treatment material (B) of the three-part constitution selected in Example 1 and the modified treatment material (B) of the four-part constitution to which the various auxiliary reforming compositions (BS) selected in Example 2 are added, If necessary, the various modification auxiliary compositions (BS) selected in Example 2 were added in the three contents shown in Table 5 and selected as test samples.

The modification treatment of the hydrous mud (A) was carried out in the same manner as in Example 1 with respect to 100 parts by weight of the hydrous mud (A) of sludge (AH), and the modification treatment material (B) of the sample and the necessary amount. In accordance with the above, the auxiliary modification composition (BS) was homogeneously mixed and contacted with the kneading machine in an amount ratio shown in Table 5 for 10 minutes to prepare modified mixtures. Modifying here 2
The water content ratio and pH value of each mixture after 4 hours were measured, and the results are also shown in Table 5.

[0225]

[0226]

EFFECTS OF THE INVENTION The effect of the present invention is that when sludge, construction sludge, high water content sludge, etc., which are generated in large quantities and are in need of treatment and disposal, and civil treatment or reuse of water content clay, etc., in agricultural lands such as rice fields are conventionally used. Various problems such as consumption of large amount of energy, environmental pollution of harmful hexavalent chromium, inability to solidify in soil containing organic matter, high alkalinity of modified soil, destruction of bio-use cycle due to high alkalinity, which are technical issues It is possible to provide a reforming treatment material and a reforming treatment technique that solve the problems and enable effective reuse of hydrous mud.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C09K 17/12 C09K 17/12 P 17/48 17/48 P E02D 3/12 102 E02D 3/12 102 / / C09K 103: 00 C09K 103: 00 F term (reference) 2D040 AB07 AB16 AC00 CA03 CA04 CA10 CB01 CC05 4D059 AA09 AA30 BF13 BF16 DA04 DA06 DA08 DA12 DA17 DA19 DA31 DA32 DA33 DA35 DA38 DA39 DA42 DA51 DA54 DA55 DA56 DA64 DA66 DA67 DA67 DA67 DA67 DB14 DB28 EB01 4H026 CA01 CA02 CA06 CB03 CB05 CB08 CC01

Claims (16)

[Claims] 1. To 100 parts by weight of the water-containing mud (A),
Powder composed of three members, a calcium composition (BC), an aluminum sulfate composition (BA), and an aluminum phosphate composition (BP), and four members to which a modifying auxiliary composition (BS) is added if necessary. The modified treatment material (B), which is a one-pack composite composition, is contact-mixed at a ratio of 2 to 100 parts by weight at room temperature, and the water-containing mud (A) has a pH value of less than 11 in a non-fluid state. In the reforming treatment step to obtain the modified soil (D), the water content of the water-containing mud (A) is 35% or more in terms of water content in the plastic or fluid state. It is a hydrous mud containing an acid salt compound as a main component; the above-mentioned calcium composition (BC) has the following composition formula (1): CaO.wH ₂ O ... (1) (where: w is Selected from the group of calcium oxides represented by numbers less than 10 including zero) I was alone or Karushiya standard composition containing more than 50 wt% expressed more the Karushiya components of the combination in CaO oxide basis (BC
1); the above aluminum sulfate composition (BA) has the following composition formula (2): aM ₂ O · bAl ₂ O ₃ · SO _n · wH ₂ O (2) (wherein: M is an alkali metal element, a is a number from 1 to 4,
b is a number from 1 to 20, w is a number less than or equal to 25 including zero, n
Is a basic salt represented by the formula 2 or 3) or a normal salt or a normal salt of aluminium, a sulfur oxyacid salt of aluminum, and a single salt or a combination of two or more salts selected from the double salt group (BA1). The above-mentioned aluminum phosphate composition (BP) has the following composition formula (3) cAl ₂ O ₃ .P ₂ O ₅ .wH ₂ O ... (3) (wherein, c is 0). .. a number from 2 to 10 and w including zero is 8
Alumina and a phosphoric acid oxyacid salt represented by the following number), which is a normal or double salt of aluminum phosphate; the above-mentioned reforming auxiliary composition (BS) is an inorganic compound and silica gel having an adsorptive water absorption capacity. , An alumina gel, a zeolite, a clay mineral or a group of carbons, or a combination of two or more adsorbent compositions (BS1); the above-mentioned modified treatment material (B) is 100 parts by weight of a calcium composition (BC). To 10 to 2 aluminum sulfate composition (BA)
00 parts by weight and an aluminum phosphate composition (BP) of 0.
A powdery one-pack composite composition composed of 1 to 50 parts by weight of a three-way mixture, and further added to a modification auxiliary composition (BS) of 1 to 500 parts by weight as a four-way mixture. A modified material characterized by being prepared with a material. 2. A waste limestone, waste gypsum, by-product gypsum, ceramic wastes, wherein the above-mentioned calcium composition (BC) contains at least 20% by weight or more of the calcium component on the CaO oxide basis. The reforming treatment material according to claim 1, which is a single or a combination waste powder composition (BC2) of a powder group consisting of wastes of blast furnace slag or incinerated ash. 3. The above calcium composition (BC) is a single or two or more combination cement powder composition (BC3) selected from the group consisting of Portland cement, blast furnace cement, silica cement, fly ash cement or alumina cement. ) Is a modified treatment material according to claim 1. 4. A calcium carbonate modified composition (BC4) comprising a calcium carbonate modified calcium carbonate component as a main component, wherein said calcium carbonate modified composition (BC4) is a calcium carbonate modified composition (BC4). , 100 parts by weight of powder containing calcium carbonate (BaCO ₃ ) as a main component such as natural aragonite, calcite, marble and shells, hydrochloric acid, if necessary,
Sulfuric acid, sulfuric acid, nitrous acid, nitric acid or silicic acid group alone or in combination of two or more kinds of acid radicals is added in an amount of 50 parts by weight or less, and decalcified by contacting at a temperature of 1000 ° C. or less to denature the calcium component. 50 based on CaO oxide
The modified treatment material according to claim 1, which is a calcium carbide modified composition containing at least wt%. 5. The calcium composition (BC) is a magnesium compound of magnesium oxide or magnesium hydroxide, either alone or in combination of two or more, and the magnesium compound is at least 5 in terms of MgO oxide.
The modifying treatment material according to claim 1, which is a magnesia mixed composition (BC5) containing a calcium compound as a main component, which is contained in an amount of 0% by weight or less. 6. The calcium composition (BC) is the above-mentioned calcium standard composition (BC1), waste powder composition (BC2), cement powder composition (BC3), calcium carbide modified composition. The modified treatment material according to claim 1, which is a calcium compound composition (BC6) which is a combination of two or more of the compound (BC4) and the magnesia mixture composition (BC5) group. 7. The aluminum sulfate composition (BA) has the following composition formula (4) bAl ₂ O ₃ .SO _n .wH ₂ O (4) (wherein, b is 1 or Number of 20, w is 0 to 24
And n is a number of 2 or 3), which is a basic salt or a normal salt thereof, or a combination band type composition (a combination of two or more kinds selected from the aluminum sulfate group consisting of a sulfur oxyacid salt of aluminum which is a normal salt). BA2) The modified material according to any one of claims 1 to 7. 8. The modified auxiliary composition (BS), which is a water-soluble organic polymer compound and has adsorptive and water-absorbing properties, polyacrylic acid salt, vinyl acetate, epoxy resin, melamine resin,
Urea resin, polybutadiene resin, urethane resin, alkyd resin, or natural resin group alone or in combination of two or more kinds of water emulsion type water-absorbing agent composition (BS
The modified treatment material according to any one of claims 1 to 7, which is 2). 9. The above-mentioned reforming auxiliary composition (BS) has the following composition formula (5): dQ _{2 / n} O · SO _m · wH ₂ O (5) (wherein: Q is Alkali metal, alkaline earth metal or iron group alone or in combination of two or more, d is 1
To 20, n is the valence of the Q element, m is the number of 2 or 3, and w is a number of 12 or less, including zero). The modifying treatment material according to any one of claims 1 to 7, which is an oxyacid salt composition (BS3) of one or a combination of two or more selected from the above. Wherein said reforming auxiliary composition (BS) is represented by the following formula _{(6) eG 2 / n O} · P 2 O 5 · wH 2 O ............... (6) ( wherein: G Is lithium, sodium, potassium, magnesium, calcium, zinc, strontium, barium, silicon, titanium, zirconium, molybdenum, iron,
Cobalt and nickel elements alone or in combination of two or more, e is a number from 1.0 to 8.0, n is a valence number of G element, and w is a number including zero of 9.0 or less). The modified oxyacid salt composition (BS4) of one or a combination of two or more phosphorus oxyacid salts selected from the group of compounds of phosphorus oxyacid salt of each metal element, wherein the modification is carried out. Processing material. 11. The reforming auxiliary composition (BS) has the following composition formula (7) fDO.Al ₂ O ₃ .wH ₂ O (7) (wherein D is an alkaline earth metal). A metal element, f is a number including zeros of 5.0 or less, and w is a number including zeros of 10 or less), and a single or two or more members of the alkaline earth metal aluminate or alumina hydrate group. The modified treatment material according to any one of claims 1 to 7, which is a combination alumina supplement composition (BS5). 12. A pigment, a colorant, and an activator, wherein the modifying auxiliary composition (BS) has a particle size of at least 100 μm and adds functionality to a solidified product formed of a powder or a granular material. The modifying treatment material according to any one of claims 1 to 7, which is a filler functional group composition or a combination functionalization composition (BS6) of two or more kinds. 13. The modified auxiliary composition (BS), which is a fibrous material such as a metal fiber, a glass fiber, a carbon fiber, an aramid fiber, a plant fiber or a mineral fiber group which reinforces the strength of a solidified body, or a group thereof. The modified treatment material according to any one of claims 1 to 7, which is a combination fiber-reinforced composition (BS7) of two or more kinds. 14. The above-mentioned modifying auxiliary composition (BS) is a sand granule having a particle size of 100 μ or more and 7 mm or less and a bulk specific gravity of 0.5 to 2.5 g / cc. Filling Aggregate Composition (BS8) Having Fillability as a Material
The modified material according to any one of claims 1 to 7. 15. The reforming auxiliary composition (BS) is composed of a combination of an oxide of an alkali metal, an oxide of an alkaline earth metal, silica, alumina and a oxyacid salt of sulfur at room temperature. The modified material according to any one of claims 1 to 7, which is a solidifying material composition (BS9) exhibiting hydraulic properties. 16. The adsorbent composition (BS1), the water absorbent composition (BS2), the sulfur oxyacid salt composition (BS3), and the phosphorous auxiliary composition (BS) as described above. Oxyacid salt composition (BS4), alumina supplement composition (BS5), function imparting composition (BS6), fibrous reinforcing composition (BS7), filled aggregate composition (BS8) and solidifying material composition (BS9) The modified treatment material according to any one of claims 1 to 7, which is a combined composite auxiliary composition (BS10) of two or more members of the group (4).