JPH11209189A - Production of water clarifying material by recycling incineration ash as valuable resource - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a water clarifying material by which large amount of the incineration ashes can be utilized as valuable resources. SOLUTION: Incineration ash of municipal refuse is mixed with mineral clay for ceramic raw material at a proper ratio, the mixture is molded to a proper shape, the molding is fused and calcined at a proper temp. to form a pottery base material 2. Then a glaze is applied to the pottery base material 2 and is calcined again at a proper temp. The glaze contains mineral powder having stretching vibrations or deformation vibrations exhibiting maximum molecular vibration spectrum in an infrared wavelength region among molecular vibration spectra of water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technology for recycling incinerated ash, particularly municipal refuse incinerated ash, and to a method for producing a water purification material using incinerated ash as a valuable resource.

[0002]

2. Description of the Related Art Incineration ash discharged from municipal solid waste incineration facilities contains heavy metals and many harmful substances. For this reason, it is difficult to reuse incinerated ash as it is,
At present, landfills are mainly conducted.

[0003]

However, in recent years, it has become difficult to secure a new landfill site from the standpoint of environmental protection. For this reason, it is necessary to reuse incinerated ash as a valuable resource. And are used only for limited applications such as being used as a raw material for interblocks and the like for paving sidewalks.

[0004] It is an object of the present invention to provide a method for producing a water purification material in which incinerated ash can be used as a valuable resource in which the incinerated ash can be used as a valuable resource.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, a method for producing a water purifying material using incinerated ash as a valuable resource according to the present invention comprises an appropriate ratio of municipal waste incinerated ash to mineral clay for ceramic raw materials. And then molded into an appropriate shape, melt molded and fired at an appropriate temperature to form a ceramic substrate, apply a glaze to the ceramic substrate, and fire again at an appropriate temperature. The glaze is configured to include a mineral powder having a stretching vibration or a bending vibration that emits the maximum molecular vibration spectrum in the infrared wavelength region in the molecular vibration spectrum of water.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. In FIG. 1 and FIG. 2, the water purification material 1 includes a ceramic base material 2 and a glaze portion 3. The pottery base material 2 is a core part of the water purification material 1. The mixed raw material obtained by mixing the municipal waste incineration ash and the mineral clay for the ceramic raw material at a ratio of 1: 5 is granulated into granules. Mold into an appropriate shape,
It is obtained by melting and firing at an appropriate temperature of 200 ° C to 1300 ° C. Urban incineration ash is used to reuse the bottom ash excluding fly ash as a valuable resource.
Quartz powder and alumina powder for ceramics.

[0007] The glaze section 3 is for applying a glaze to the ceramic substrate 2 and firing it again at an appropriate temperature of about 1300 ° C to form a glaze. In the vibration spectrum, it includes a mineral powder having a stretching vibration or a bending vibration that emits the maximum molecular vibration spectrum in the infrared wavelength region.

[0008] This mineral will be described. It is well known that various ores have a unique molecular vibration spectrum due to their components. If the molecular vibration spectrum of the ore is equal to the molecular vibration spectrum of water, the vibration resonates. For this reason, the collected ore is stored at 400 ° C. to 850
What was recrystallized after dehydration after firing at about
Use a material crushed to about 450 mesh. Usually, it is pulverized after firing, but may be used after firing.

As a glaze for the ceramic industry, for example, Sr
O, TiO ₂ , CoO, FeO, Fe ₂ O _{3 and the} like. The composition is 90 to 95% by weight of the mineral component and 5 to 10% by weight of the glaze component, or 80 to 95% by weight of the mineral component and 5 to 20% by weight of the glaze component depending on the case.

The operation of the above configuration will be described below. Incinerated ash contains heavy metals and harmful substances,
By performing the firing twice at a temperature of 1200 to 1300 ° C., the incinerated ash is melted and vitrified, and harmful substances and heavy metals are incorporated into the glassy molecular structure. It is a valuable resource as a raw material for the material 2.

When the water purifying material 1 is used, for example, a plurality of spherical water purifying materials 1 are contained in a mesh casing 4 and immersed in a water channel or the like. In this state, the water purifying material 1 emits the maximum molecular vibration spectrum in the infrared wavelength region from the glaze portion 3 and reduces the oxidation-reduction potential of the surrounding water. In other words, the vibrational energy of internal vibrations excited in the crystal of the hydrophilic rock is transferred to water molecules and oxonium by excitation transfer, especially resonance transfer, to excite electrons, and the subsequent transition from the excited state to the ground state, And hydration electrons derived from the decomposition make it possible to produce water having a high reducing power. An example of the effect of the reduction of the oxidation-reduction potential will be described below.

[0012] Tap water contains trace amounts of natural organic substances that are precursors of trihalomethane, and this precursor reacts with chlorine to produce trihalomethane. Typical of these precursors are natural corrosive substances such as humic acid and fulvic acid, which are called chromatic components in water. Humic acid particles are three layers of water surrounding the protein, but the water on the protein surface becomes a thin layer by increasing the reducibility sequentially from the outermost layer of water,
Contact with microorganisms is promoted and decomposed by microorganisms.

Therefore, when the tap water containing humic acid is brought into contact with the water purifying material 1 in a flowing state, the reducing power of the water itself increases the thickness of the water molecules surrounding the humic acid. As a result, the removal of the precursor material of trihalomethane can be promoted.

With respect to general bacteria, minerals and nutrients such as organic substances necessary for their survival are reduced by reducing power, and the solubility of oxygen in gas is increased by reducing the oxidation-reduction potential of water. The toxic effects of the intermediates generated before the molecule is reduced to form a water molecule can exert a bactericidal action.

That is, the intermediates superoxide (O ₂ ⁻ ), peroxide (O ₂ ²⁻ ), and hydroxyl radical (OH ⁻ ) are toxic, and the oxidizing ability of OH and O ₂ ⁻ is particularly strong. O ₂ ^- is reduced to hydrogen peroxide by SOD, and hydrogen peroxide is further decomposed into water and oxygen by catalase (a heme protein enzyme that acts as a catalyst for decomposing hydrogen peroxide into water and oxygen). . However, most of the facultative anaerobic bacteria and obligate anaerobic bacteria do not have catalase, so that the toxicity of the intermediate cannot be detoxified. Therefore, against general bacteria, the solubility of oxygen in the gas is increased by reducing the oxidation-reduction potential of water, and the toxic effect of intermediates generated before oxygen molecules are reduced to produce water molecules has a bactericidal effect. Can exert.

Next, an example in which the present invention is applied to the removal of malodorous substances will be described. Odor generation may cause discomfort when the following malodorous substances are generated in particular. In the basic system, ammonia and trimethylamine are used. In the acidic system, hydrogen sulfide and methyl mercaptan are used. In the neutral system, dimethyl disulfide, dimethyl sulfide, and acetaldehyde are used.

Ammonia NH ₃ is easily dissociated by free electrons due to the reduction of the oxidation-reduction potential due to free electrons, and is dissolved in the water to be deodorized. Hydrogen sulfide H ₂ S
Is dissolved by reduced water, and free sulfur is precipitated.

[0018]

As described above, according to the present invention, by burning the incinerated ash twice at a temperature of 1200 to 1300 ° C., the incinerated ash is melted and vitrified to have a glassy molecular structure. Hazardous substances and heavy metals can be taken in, and the incinerated ash is a valuable resource that is used as a raw material of the pottery base material for water purification materials.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a water purification material according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a use state of the water purification material in an experiment.

[Explanation of symbols]

 Reference Signs List 1 water purifying material 2 pottery base material 3 glaze part 4 casing

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[Procedure amendment]

[Submission date] February 5, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 1

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, a method for producing a water purifying material using incinerated ash as a valuable resource according to the present invention comprises an appropriate ratio of municipal waste incinerated ash to mineral clay for ceramic raw materials. And then molded into an appropriate shape, melt molded and fired at an appropriate temperature to form a ceramic substrate, apply a glaze to the ceramic substrate, and fire again at an appropriate temperature. , glaze, among the molecular vibrational spectra of water, Chi lifting a stretching vibration or deformation vibration emits the greatest molecular vibrational spectra in a wavelength region of infrared, to excite the crystal
Transfer the vibration energy of internal vibration to water molecules to generate electrons
It is configured to include a mineral powder that excites and generates hydrated electrons .

──────────────────────────────────────────────────の Continued on front page (51) Int.Cl. ⁶ Identification code FI C04B 35/00 V

Claims (1)

[Claims] Claims 1. An incinerated ash from municipal solid waste and a mineral clay for a ceramic raw material are mixed at an appropriate ratio and then molded into an appropriate shape, and the molded product is melted and fired at an appropriate temperature to form a ceramic base material. A glaze is applied to a ceramic substrate and fired again at an appropriate temperature. The glaze is a stretching vibration or a bending vibration that emits the largest molecular vibration spectrum in the infrared wavelength region of the molecular vibration spectrum of water. A method for producing a water purification material using incinerated ash as a valuable resource, characterized by containing a mineral powder having the following.