JP2009136812A - Recovering clarification method of incineration ash, soil or the like containing harmful substance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of efficiently removing a harmful substance from various kinds of incineration ash, coal ash, waste liquid, sludge, contaminated soil or the like by using a chemical separation method and also a physical separation method in combination. <P>SOLUTION: The recovering clarification method of incineration ash, soil or the like containing harmful substance comprises: a process of charging water 4, air 6 and an inorganic electrolytic coagulant 8 as a means for liquefying or sludging an object containing the harmful substance and solidifying the harmful substance; a process of charging the object into a first substance decomposition and recovery apparatus 10; a process of separating a mixture in the first substance decomposition and recovery apparatus 10 into waste liquid and solid by virtue of centrifugal force by high speed rotation of the apparatus 10; a process of introducing the separated waste liquid to a second substance decomposition and recovery apparatus and recovering the separated solid of the other side as the first reproduced material; a process of separating solid material from the waste liquid introduced to the second substance decomposition and recovery apparatus by high speed rotation of the waste liquid and a magnetic field operation of a non-refringerant type conduction magnet; and a process of recovering one side clarified liquid from which the solid material is separated as original liquid of the secondary reproduced material, and separately recovering the other side solid material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes various incineration ash such as municipal waste and coal, river sewage and contaminated bottom mud, dioxins (PCDD and PCDF), PCB, asbestos, etc. contained in factory ruins and contaminated soil of industrial facilities, etc. In addition, the dioxins, PCBs, asbestos, heavy metals, etc. are separated from the object containing harmful substances containing a wide variety of heavy metals, etc. by chemical separation with inorganic electrolytic flocculant and magnetic separation, and at the same time harmless. The present invention relates to a method for regenerating and purifying incinerated ash, soil and the like containing harmful substances that can be used to produce reclaimed soil and artificial zeolite from various objects and regenerate and purify them as various effective materials.

  Artificial zeolite is a porous substance and has been used in many fields such as soil conditioners and sewage treatment because it has a cation exchange function. Moreover, since it is porous, it has a function of adsorbing chemical substances such as formaldehyde that cause sick house and bad odor. Furthermore, artificial zeolite has a catalytic function and is expected as a catalyst for decomposing nitrogen oxides in exhaust gas.

  Conventionally, in order to produce artificial zeolite having such characteristics, incineration ash such as municipal waste is introduced into a tank containing sodium hydroxide at a temperature of 100 ° C. and 2N to 3.5N and stirred. In the boiling pressure-free system for producing zeolite in about 6 hours, the incinerated ash is placed in a high-temperature pressure kettle having a temperature of 174 ° C. to 200 ° C. and a pressure of about 8 kg to 10 kgf / square cm, and 3.5N sodium hydroxide In many cases, an autoclave system in which zeolite is produced in about 2 to 3 hours by adding and stirring is used.

  In addition, some chemical substances and heavy metals such as dioxins and PCBs contained in incineration ash have strong toxicity, causing problems that cause damaging effects and damage to the normal operation of the environment. There is a need for technology to separate, recover and reuse these hazardous substances. However, when a conventional thermal decomposition and recovery apparatus using a thermal solvent type contact circulation system is used, a great amount of energy is consumed for heating the thermal solvent, and the heat exchange efficiency is very poor.

  Substance separation methods include a physical separation method and a chemical separation method, but the physical separation method has an advantage that it can be performed without requiring a secondary treatment. In such a physical separation field, particularly when magnetic separation is used, a desired particulate matter can be separated and recovered in a large amount and at high speed in a suspension system in which fine particles of atomic and molecular size are suspended. It becomes.

  Here, it has been found that even a diamagnetic substance and a paramagnetic substance can be attracted under a strong magnetic field. A diamagnetic material such as water or quartz glass, a paramagnetic material such as aluminum or oxygen, or a non-magnetic material has a specific magnetic susceptibility of 10 minus 3 to 10 minus 4 and the ratio of ferromagnetic materials. The susceptibility is as small as 10th power of 10 to the seventh power of 1/10. For this reason, conventionally, the energy of the non-magnetic substance or the like has been ignored as being too small.

  On the other hand, enriched salt such as phosphorus, nitrogen and sludge and its undecomposed products accumulate in the bottom mud of lakes and rivers, etc., resulting in an increase in oxygen consumption and a decrease in dissolved oxygen content DO. . At this time, the bottom mud is changed to sulfide, and using this as an energy source, various planktons and blue sea breams are generated, and the water quality is accelerated. Therefore, the improvement of water quality is based on the modification of bottom sediment mud under reduction, and this modification will restore the ecosystem.

  Therefore, in recent years, in order to proactively recycle contaminated bottom mud as part of environmental conservation and the permanent use of resources, the contaminated bottom mud has been changed to soil with excellent hydrophobicity, water retention, air permeability, etc. There has been provided a technique for modifying mud by using an inorganic electrolytic flocculant that can be used.

In addition, arsenic, PCBs, heavy metals, and other harmful substances are often contained in factory sites and various industrial facilities, and the treatment involves replacing all of the soil or removing these harmful substances. Even if it is replaced, these contaminated soils cannot be discarded as they are, and in any case, it is necessary to remove these harmful substances, which requires enormous funds.
US Patent Registration No. 7,132,095

  In the present invention, as described above, in view of the fact that the chemical separation method and the physical separation method are each performed independently, treatments for various types and amounts of harmful substances are not rationally performed. Eliminates harmful substances efficiently by combining chemical and physical separation methods with various incineration ash, coal ash, sludge, sludge, and contaminated soil containing harmful substances. In addition, it is possible to recycle substances from which harmful substances have been removed, and at the same time, to regenerate the separation liquid obtained in the process of treating them as artificial zeolite.

  If the content of heavy metals contained in incineration ash such as municipal waste and coal, contaminated bottom mud from rivers, contaminated soil in factory sites, etc. is low, use only an inorganic electrolytic flocculant. Although it can be removed, when the content of heavy metals is large, the use of the inorganic electrolytic flocculant alone cannot sufficiently remove them.

  Therefore, heavy metals can be obtained by combining a magnetic separation apparatus, which is a physical separation method that generates a high magnetic force capable of attracting and separating not only ferromagnetic and paramagnetic materials but also non-magnetic materials, with the above chemical separation method. It is possible to remove harmful substances with a large content such as, and thereby to remove them regardless of the amount of harmful substances.

  Furthermore, as described above, the present invention relates to incineration ash such as municipal waste and coal, contaminated bottom mud of rivers, etc., regardless of the content of heavy metals contained in contaminated soil of factory sites, etc. Detoxify heavy metals efficiently by chemical separation and magnetic separation, and at the same time, the production of conventional artificial zeolite takes too much time and cost for the production of either boiling-free pressure method or autoclave method. An object of the present invention is to provide a production method in which an artificial zeolite can be continuously produced easily and in a short time from this detoxified clarified liquid, since continuous operation was impossible due to the batch type. .

  In order to solve the above-described problems, in the present invention, the first re-removal in which the harmful substances are removed from the object containing the harmful substances such as dioxins, PCB, asbestos and various heavy metals. Water, air, and inorganic electrolytic agglomeration as a means of liquefying or muddying objects containing harmful substances and solidifying the harmful substances in a regenerative purification process that regenerates organisms and secondary regenerated products made of artificial zeolite A step of administering an agent, a step of administering the object to the first substance decomposition / recovery device, a step of separating the waste liquid and the solid by centrifugal force by high-speed rotation of the first substance decomposition / recovery device, The step of introducing the sewage into the second material decomposition / recovery device and recovering the other separated solid as the primary regenerated product, and the sewage introduced into the second material decomposition / recovery device is rotated at high speed and is non-refrigerant Magnet of conduction magnet A step of separating solids from the waste liquid by the action, one liquid from which the solids have been separated is recovered as a clarified liquid as the original liquid of the second regenerated product, and the other solid is separately recovered, the above steps Into the clarified liquid, which is the original liquid of the secondary regenerated product obtained in step 1, a heat-treated liquid containing an alkaline aqueous solution as a solvent is continuously introduced to crystallize the artificial zeolite with a tectoaluminosilicate structure. It is characterized by a method for reclaiming and purifying incinerated ash and soil containing harmful substances, and a step of recovering as a regenerated product.

  In addition, as a target containing harmful substances such as dioxins, PCBs, asbestos, and various heavy metals, harmful substances such as various incineration ash, coal ash, sewage, sludge or contaminated soil such as factory sites and various industrial facilities are included. It is characterized by a method for regenerating and purifying incinerated ash and soil.

  Furthermore, as a solidifying agent for the step of coagulating harmful substances from a liquefied or muddy object, phosphonic acid and magnesium sulfate are mixed in a solvent that does not contain chlorine and stirred for several minutes. It is characterized by a method for regenerating and purifying incinerated ash, soil, etc. containing harmful substances as inorganic electrolytic flocculants administered with ferric sulfate and stirred for several minutes.

  In addition, the present invention is characterized by a method for regenerating and purifying incinerated ash, soil, and the like containing harmful substances with the high-speed rotation shaft of the first material decomposition and recovery device as the same axis as the high-speed rotation shaft of the second material decomposition and recovery device.

  Furthermore, the primary regenerated material is a hazardous substance that can be reused as soil or fertilizer by administering an aqueous solution and air mixed with sodium silicate and calcium carbonate as a pH adjuster and appropriate administration of nitrogen, phosphorus, potash, etc. It is characterized by a method for regenerating and purifying incineration ash, soil, etc.

  In addition, it features a method for regenerating and purifying incinerated ash, soil, etc. containing harmful substances, where the process prior to crystallization is a process in which liquid artificial zeolite is mixed with a fine powdered negative ion generator to form a solid. And

  Furthermore, the artificial zeolite produced and crystallized in the above process is characterized by a method for regenerating and purifying incinerated ash or soil containing harmful substances obtained by adsorbing, immersing or applying a fine powder negative ion generator. To do.

  In addition, the present invention is characterized by a method for regenerating and purifying incinerated ash, soil, and the like containing harmful substances made of rare earth ore as a negative ion generator or a mixture of these rare earth ores with a low radioactive material or titanium oxide.

  Furthermore, regenerative purification treatment of incinerated ash and soil containing harmful substances obtained by processing the negative ion-containing artificial zeolite obtained as described above into a plate material as a building interior material or a block material as a building masonry material Features method.

  Further, the present invention is characterized by a method for regenerating and purifying incinerated ash, soil, and the like containing harmful substances, which is performed in a treatment facility.

  Further, the present invention is characterized by a method for regenerating and purifying incinerated ash, soil, and the like containing harmful substances to be moved and processed in a place where the object is present, with each apparatus for performing the above-described steps being mounted on a moving means such as a vehicle.

  According to the present invention, for example, incineration ash such as municipal waste and coal, polluted bottom mud such as rivers, regardless of the content of heavy metals contained in contaminated soil of factory sites and various industrial facilities, By combining chemical separation and physical separation, the heavy metals are efficiently separated and detoxified, making it possible to reuse them, and at the same time, making artificial zeolite easier than liquid produced in the process and It became possible to generate in a short time.

  In addition to adsorbing, immersing, or coating negative ion generators that generate negative ions on artificial zeolite, in addition to the main functions of conventional artificial zeolite, cation exchange function, adsorption function, catalytic function, etc. It became possible to provide an ion generation function.

  Furthermore, modified soil and fertilizer can be obtained by administering other effective agents to the regenerated product from which harmful substances have been separated by the use of the inorganic electrolytic flocculant and physical decomposition, It has a ground strength of 1.5 to 3.0 kg by its own weight, and when it is cultivated, it becomes fluffy, and when it is rolled, it becomes possible to make the soil tight. In addition, water retention, breathability, hydrophobicity, etc., which are extremely important for vegetation, can be obtained, and it is possible to obtain good soil for soil microorganisms that are excellent in water draining. Furthermore, since it is in the range of pH 6-7, it has become possible to obtain soil and fertilizer that has a chelating effect and renders pollutants harmless.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  The method for regenerating and purifying incinerated ash and soil containing various harmful substances according to the present invention is a method for liquefying or muddying incinerated ash and soil, and toxic substances such as heavy metals with a low content in the sewage. In the next step, the soil modification agent using inorganic electrolytic flocculant and the substance separation and recovery means are used for the treatment, and in the next step, harmful substances such as heavy metals containing a large amount of This is a regeneration purification process method in which a magnetic separation process is performed by a substance separation and recovery device using a conductive magnet.

  Digested ash, coal ash, sludge, sludge, or contaminated soil such as factory sites and various industrial facilities, which are objects containing harmful substances such as dioxins, PCBs, asbestos and various heavy metals, are transported by the transport means. Introduced to the treatment facility 1 at a location close to mud or soil contaminated by the treatment facility installed at the place, the facility connected to the incineration means adjacent to the facility, or the equipment equipped with the moving means such as a vehicle. Is done. As for the object containing harmful substances introduced into the treatment facility 1 as described above, the liquid state is adjusted for liquid or mud, and water 4 is administered for ash or solid. To liquefy or muddy.

Simultaneously with the liquefaction or muddy state, the inorganic electrolytic flocculant 8 is administered from the air 6 and the tank 7 to the object containing the harmful substance by the compressor 5 or the like. The inorganic electrolytic flocculant 8 is prepared by mixing 5 to 10 g of phosphonic acid and 15 to 30 g of magnesium sulfate into 50 to 100 g of the solvent and mixing the mixture with 50 to 100 g of fresh water that is not mixed with chlorine. Next, 350 to 700 g of aluminum sulfate and polyferric sulfate are added, and lightly stirred for about 5 to 10 minutes.
The components of the inorganic electrolytic flocculant are as shown in Table 1 below.

  The above-mentioned object is supplied with water 4, supplied with air 6 and inorganic electrolytic flocculant 8, and sent to the tank 9 in a liquefied or muddy state while being stirred by the screw conveyor 2. Will be introduced.

  As shown in FIG. 1, the substance separation and recovery apparatus 10 using a non-refrigerant superconducting magnet includes a cylindrical drum-shaped rotating body 12 that rotates at a high speed around a rotating shaft 13, and a center of the rotating body 12 at the center. It is a non-refrigerant superconducting magnet arranged on the outer periphery of the sewage / sludge tube 14 and the sewage / sludge tube 14 that becomes the passage of the sewage and sludge as the object from the tank 9 to the inside of the substance separation and recovery device A dry magnet 11 is provided. Reference numeral 17 denotes a magnetic adhesion separation / recovery target substance contained in the sludge or sludge, and reference numeral 18 denotes a centrifugal force separation / recovery target substance contained in the sludge or sludge. The clarified liquid after recovery of the magnetic separation / recovery substance 17 is a liquid containing sodium hydroxide or water / air / electrolyzed water as a solvent and continuously introduced into the substance separation / recovery device 10. It is.

  As an example of the detailed configuration of the substance separation / recovery device 10, as shown in FIG. 2, it is formed so that the whole is vertically long, and the staying time of the sewage or sludge inside the device is increased, so that the magnetic separation is performed. The time and the magnetic adhesion separation area are increased so that the separation and recovery can be performed efficiently. The rotating body 12 is rotated by a motor 20 via a rotating shaft 13, and a scraper plate 21 in the shape of two blades is attached to the inner periphery of the rotating body 12. Is provided with a block 23. The blade shaft 22 of the scraping plate 21 has the same central axis as the rotation shaft 13 of the rotating body 12. The rotating shaft 13 is braked by a stopper 24, and a discharge pipe 26 is disposed below the rotating body 12 via a slide plate 25. Further, a drainage port 27 through which the clarified liquid is discharged is provided on the side of the rotating body 12 and is connected to the tanks 28 and 28 '. The two scraping plates 21 are attached to each other in a direction of 180 °, for example, with the rotating body 12 interposed therebetween. The clarified liquid separated and recovered in the substance separation / recovery device 10 and returned to the tank 28 is introduced into the tank 28 ′, converted into a heat-treated liquid containing an alkaline aqueous solution as a solvent, and returned to the substance separation / recovery device 10 ′ again. It is pumped continuously and refluxed to crystallize into a zeolite with a tectoaluminosilicate structure.

  Centrifugal force is applied to the sludge and sludge by the action of the rotating body 12 rotating at high speed, and the centrifugal force separation / recovery target substance 18 is separated from the sludge and sludge, and is precipitated near the inner periphery of the rotating body 12. Further, by rotating the blade shaft 22, the scraping plate 12 is rotated in the direction opposite to the rotating direction of the rotating body 12, and the centrifugal force separation / recovery target substance 18 precipitated near the inner periphery of the rotating body 12 is scraped off. Can do. The centrifugal separation / recovery target substance 18 that has been scraped off falls onto the slide plate 25 and is discharged out of the substance separation / recovery device 10 through a discharge pipe 26 from a hole opened in the slide plate 25.

  The separated and recovered material scraped off as the centrifugal separation and recovery target substance 18 by the scraping plate 21 is recovered from the discharge pipe 26 by the screw conveyor 29. In the recovery process, the soil particle reinforcing agent 31 is administered from the tank 30. Will do.

The mud can be modified by administering an aqueous solution in which sodium silicate is mixed as the soil particle reinforcing agent 31 and calcium carbonate is mixed as the pH adjuster. In addition, materials such as nitrogen, phosphorus, potash and the like are appropriately administered as necessary.
Table 2 shows the addition amount of the soil particle reinforcing agent and the pH adjusting agent per 1 m of the bottom mud.

  The addition amount of the above-mentioned agent and material varies depending on the properties of the object and the use of the treated soil. The above-mentioned soil particle reinforcing agent and pH adjusting agent synthesize inorganic metal loaded materials having different ionic valences in a single solution using a special device, and a reaction that cannot be achieved by a single positive charge from its synergistic effect. It is a strong ionic bond improver modified to a high positive charge.

  At this time, the soil conditioner has an ion increase phenomenon peculiar to inorganic systems during the hydration reaction, and several systems of positively charged substances react simultaneously in the mud, taking on their roles with their respective characteristics. Causes strong collisional coupling with the soil and destroys the shell of the electric double layer in the dirt particles and mud. That is, this is to neutralize the contaminating particles and mud, and electrolytic coupling based on Van der Waals's law occurs and grows into aggregate particles. Since the aggregate particles have lost the hydrophilic group, the constrained water molecules are changed to free water, and a so-called hydrophobization phenomenon occurs that is pushed out from the intergranular state by the electrolytic compression force of the particle bond, and is firmly bonded with time, and is irreversible It becomes hydrophobic aggregate particles. The soil thus treated does not cause mudification again, and includes various nutrient salts and the like in the active group particles, and is retained without being eluted by the silica coating and hydroxyapatite.

  In the soil particles improved as described above, the alumina octahedron and the silicate tetrahedron are bonded, and the silicon oxide charge is attracted and balanced with the negative charge of the oxygen molecule, while the negative charge of the other oxygen molecule is It will attract the next silicon oxide. On the other hand, the octahedron of dialuminum trioxide adsorbs and holds manganese, magnesium and the like. That is, various minerals such as minerals and nutrient salts are adhered to hydroxyapatite, silicate colloid, and the like in aggregate particles having a large amount of oxygen. At the same time, the mud has many hydroxyl groups, phenol groups, and carboxyl groups such as CEC and AEC (ion exchange amount) that are superior to the organic substances contained in the mud. In addition, the silicon oxide used in combination can enhance the immunity of microorganisms in plants and soil and promote healthy growth.

  In this way, the soil that has been mud modified by the inorganic electrolytic flocculant and the soil conditioner used in the treatment in the previous step has a soil strength of 1.5 to 3.0 kg by its own weight, and is cultivated Becomes fluffy, and when rolled, it becomes a firm soil. Moreover, water retention, air permeability, hydrophobicity, etc., which are extremely important for vegetation, can be obtained, and good soil can be obtained for soil microorganisms excellent in water draining. Furthermore, various disadvantages of mud soil can be improved, soil having properties equivalent to those of general healthy soils, retaining essential nutrients for plants, and effective for plant growth can be obtained. In addition, since the pH is in the range of 6 to 7, a soil having a chelating effect and detoxifying pollutants is obtained. Moreover, it can be used as fertilizer as well as excellent soil by appropriately administering materials such as nitrogen, phosphorus and potash.

  On the other hand, the contaminated liquid separated by application of centrifugal force by the rotating body 12 rotating at high speed changes in a mist state and overflows the upper surface of the rotating body 12 from the inside of the rotating body 12 as shown by the arrow in FIG. To do. Dioxins, PCBs, asbestos, etc. that could not be treated with the inorganic electrolytic flocculant have a small particle size of 10 μm or less, and these harmful substances are easily attached to the atomized liquid and are captured in the liquid. It will float and move in the form of a mist. The mist-like sewage is separated from the sewage by the superconducting magnetic field action of the dry magnet 11 set in accordance with the magnetic susceptibility of the magnetic separation / recovery target material 17, and the dry magnet 11 is installed. The material separation and recovery device 10 is magnetically attached to the inner wall.

  Then, by demagnetizing the dry magnet 11 at an appropriate timing, the magnetic separation / recovery target material 17 magnetically attached to the inner wall falls and is discharged out of the material separation / recovery device 10 from the discharge pipe 32. At the same time, the clarified liquid is discharged from the liquid discharge port 27 on the side of the rotating body 12 and sent to the storage and stirring tank 28. At this time, by opening the ball valve and driving the circulation pump at the same time, the clarified liquid is refluxed to the substance separation and recovery device 10, and the same substance separation as described above is repeated.

  That is, the clarified liquid is returned to the storage and agitation tank 28, and then converted into a heat-treated liquid containing an alkaline aqueous solution as a solvent and again introduced into the substance separation and recovery device 10 by continuous reflux, It is crystallized into zeolite with a tectoaluminosilicate structure.

  The power consumption of the substance separation and recovery apparatus 10 using the non-refrigerant superconducting magnet is, for example, about 3.7 kW, and the power consumption is extremely small. Further, the rotating body 12 is rotated at a high speed of, for example, 4000 revolutions per minute, and the centrifugal force separation and recovery target substance is first separated from the sewage and sludge, and then the magnetic magnet is separated and recovered by the action of the dry magnet 11 surrounding the rotating body 12 The substance 18 can be separated and recovered efficiently. In addition, dioxins, PCBs, asbestos, and the like can be separated and recovered by applying a high magnetic field of about 0.1 Tesla using the substance separation and recovery apparatus 10. Furthermore, the substance separation / recovery device 10 can separate heavy metals. For example, iron particles and manganese, which are ferromagnetic particles, can be magnetized by applying a superconducting magnetic field of about 0.1 Tesla, and calcium and magnesium, which are weak magnetic particles, are superconducting magnetic fields of about 1 Tesla. In addition, gold and nitrogen, which are diamagnetic particles, can be magnetized by applying a superconducting magnetic field of about 5 Tesla. Separation is possible. In addition, in the case of non-magnetic particles such as silicon and arsenic, a magnetic material such as iron powder, magnetite, and iron hydroxide is added, and the particles are easily magnetized and separated by imparting magnetism to the particles. be able to.

  The artificial zeolite produced by the above process is mixed with a negative ion generator that efficiently generates negative ions by the action of weak radiation and infrared rays. The above weak radiation is known to activate living cells and improve their immunity, which is now called the hormesis effect. According to the negative ion generator of the present invention, it is possible to efficiently generate negative ions by the weak radiation emitted by the low radioactive material and to bring a good action based on the hormesis effect to the living body.

  Furthermore, infrared rays having a wavelength of 4 to 14 μm are referred to as growth rays, and resonate with living cells to activate them. The negative ion generator employs natural ore having an infrared emissivity of 95% or more as a constituent material, and has an extremely excellent effect on the activation of living cells. Infrared emissivity and radiation amount depend on carbon contained in natural ore. The emissivity is a ratio between the radiation from the surface of a certain object and the radiation from an ideal black body at the same temperature, and is a value indicating the radiation ability of the object.

  That is, the present invention is a negative ion generator formed by carefully selecting the constituent materials so as to comprehensively enjoy the effects related to the negative ions, hormesis effect and growing light.

  Negative ion generators include natural ores that contain carbon and a rare earth ore with an infrared emissivity of 95% or more at a wavelength of 4 to 14 μm, or a low radioactive material containing a very small amount of radionuclide in these natural ores, and titanium It is formed by blending ceramics containing oxides.

上記シリカブラックは、海底に堆積した珪藻類が隆起して生成された世界的にも希有な黒色の天然鉱石であり、現在のところ、北海道松前半島のみで産出されている。その特徴は、ＳｉＯ_２を主成分とするとともに炭素及び天然ミネラルを豊富に含むことであり、特に波長４〜１４μｍの赤外線の放射率は９８％前後と非常に高い。シリカブラックは、採掘したままの状態でもマイナスイオンを発生することが知られており、本実施例では、これを更に有効に利用するべく他の材料と配合することにより、顕著な効果を達成している。 As the rare earth or radioactive ore, there are various natural ores such as germanium ore, radium ore, titanium ore, and barleystone. As an example of natural ore, graphite silica (commonly known as silica black) produced in Matsumae Peninsula in Hokkaido was adopted, and the low radioactive material used was dust collected during purification of zirconium silicate. In addition, as a ceramic containing a titanium oxide, a titanium ceramic processed into a powder form was used, and as a rare earth element, a rare earth-containing powder containing a rare earth element oxide was used. Table 3 shows a favorable composition obtained by the above materials.

The above-mentioned silica black is a rare black natural ore produced in the world by raising diatoms deposited on the seabed, and is currently produced only in Matsumae Peninsula, Hokkaido. Its feature is that it contains SiO ₂ as a main component and contains abundant carbon and natural minerals. In particular, the emissivity of infrared rays having a wavelength of 4 to 14 μm is as high as about 98%. Silica black is known to generate negative ions even when it is mined, and in this example, a remarkable effect is achieved by blending it with other materials in order to use it more effectively. ing.

  Experiments with the above configuration have revealed that the negative ion generator efficiently generates negative ions and emits a very small amount of radiation and growth light. In other words, the negative ion generator can enjoy all the effects related to the negative ions, the hormesis effect, and the growing light.

  0.5 to 10 parts of a negative ion generator is mixed with 100 parts of the artificial zeolite. As a mixing method, a mixed solution containing a negative ion generator is administered. It will be integrated with the drying of the artificial zeolite. Since artificial zeolite is excellent in adsorptivity, the negative ion generator can remain in the material for a long period of time.

  On the other hand, the artificial zeolite produced by the above process is adsorbed or coated with a solution in which the same fine powdered negative ion generator powder as that described above is mixed with the adhering means, or is immersed in the aqueous solution. As a result, the negative ion generator can enter the surface of the artificial zeolite with good adsorptivity and the voids on the inner side, and an artificial zeolite that generates negative ions over a long period of time can be obtained.

  The artificial zeolite can be widely used as a building material by producing it into a predetermined shape. For example, it is formed into a predetermined size as an interior board so that it can be used in the same way as ALC boards and gypsum boards, or a brick material or a block material as a building masonry material. Thus, it is possible to always generate negative ions from the material. This makes it possible to add a negative ion generation function in addition to the cation exchange function, adsorption function, catalyst function, etc., which are the main functions of conventional artificial zeolite.

  In addition, each device that performs the above steps can be constructed as a plant in a waste disposal facility or in the vicinity thereof, and by installing each main device in a moving means such as a vehicle, rivers and factory ruins and various industries It makes it possible to treat sludge and soil containing a large amount of harmful substances such as facilities at the site.

BRIEF DESCRIPTION OF THE DRAWINGS The block diagram which shows the outline for performing reproduction | regeneration purification | cleaning processes, such as incineration ash and soil containing a harmful substance for implementing this invention. Sectional drawing which similarly shows an example of the detailed structure of a substance separation-and-recovery apparatus. The schematic sectional drawing explaining the principle of a substance separation recovery apparatus similarly.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing facility 2, 29 Screw conveyor 3, 7, 9, 30, 28, 28 'Tank 4 Water 5 Compressor 6 Air 8 Inorganic electrolytic flocculant 10, 10' Material separation collection | recovery apparatus 11 Dry magnet 12 Rotating body 13 Rotating shaft 14 Waste liquid / sludge tube 17 Target material for magnetic separation / recovery 18 Target material for centrifugal separation / recovery 20 Motor 21 Scraping plate 22 Blade shaft 23 Block 24 Stopper 25 Slide plate 26, 32 Drain pipe 27 Drain port 31 Soil particle reinforcing agent

Claims (11)

  Removes harmful substances from objects containing harmful substances such as dioxins, PCBs, asbestos and various heavy metals, and regenerates them into primary regenerated products from which harmful substances have been removed, and secondary regenerated products made from artificial zeolite. In the method for regenerating and purifying, a step of liquefying or muddying an object containing a hazardous substance and administering water, air or an inorganic electrolytic flocculant as means for solidifying the harmful substance; A step of administering to the recovery device, a step of separating the waste liquid and the solid by centrifugal force by high-speed rotation of the first material decomposition recovery device, introducing the separated waste liquid into the second material decomposition recovery device, A step of recovering the separated solid as a first regenerated product, and the waste liquid introduced into the second material decomposition and recovery device separates the solid matter from the waste liquid by high-speed rotation and the magnetic field action of a non-refrigerant conduction magnet Process, solid One liquid from which the product has been separated is recovered as a clarified liquid as the original liquid of the second regenerated product, and the other solid is recovered separately. Incineration containing harmful substances comprising the step of continuously introducing a heat-treated liquid containing an alkaline aqueous solution as a solvent into the liquid to crystallize the artificial zeolite with a tectoaluminosilicate structure and recover it as a secondary regenerated product Regeneration and purification method for ash and soil.   Claims characterized as incinerated ash, coal ash, sewage, sludge, or contaminated soil in factory ruins and various industrial facilities as objects containing hazardous substances such as dioxins, PCBs, asbestos and various heavy metals A method for regenerating and purifying incinerated ash or soil containing the hazardous substance according to Item 1.   As a solidifying agent for the process of coagulating harmful substances from a liquefied or muddy object, phosphonic acid and magnesium sulfate are mixed in a chlorine-free solvent, stirred for several minutes, and then aluminum sulfate and polysulfuric acid are mixed. The method for regenerating and purifying incinerated ash or soil containing harmful substances according to claim 1 or 2, wherein the ferritic agent is an inorganic electrolytic flocculant administered with ferric iron and stirred for several minutes.   4. Incinerated ash or soil containing harmful substances according to claim 1, wherein the high-speed rotation shaft of the first material decomposition and recovery device and the high-speed rotation shaft of the second material decomposition and recovery device are the same axis. Regeneration and purification treatment method.   The primary regenerated product is reused as soil or fertilizer by administering an aqueous solution and air mixed with sodium silicate and calcium carbonate as a pH adjuster, and nitrogen, phosphorus, potash, etc. as appropriate. A method for regenerating and purifying incinerated ash and soil containing the harmful substances according to claim 1.   6. The incinerated ash containing harmful substances according to claim 1, wherein the step before crystallization is a step of mixing a liquid artificial zeolite with a fine powdered negative ion generator to form a solid. Regeneration and purification method for soil and soil.   The incinerated ash containing harmful substances according to claim 1, wherein the fine zeolite negative ion generator is adsorbed, immersed or coated on the artificial zeolite produced and crystallized in the above-mentioned step. A method for regenerating and purifying soil and the like.   Regeneration and purification treatment of incinerated ash and soil containing harmful substances according to claim 6 or 7, wherein the negative ion generator is a rare earth ore or a mixture of these rare earth ores with a low radioactive material or titanium oxide. Method.   Incinerated ash containing harmful substances, characterized by processing the negative ion-containing artificial zeolite obtained according to claims 6 to 8 into a plate material as a building interior material or a block material as a building masonry material. Regeneration and purification method for soil and soil.   The method for regenerating and purifying incinerated ash or soil containing harmful substances according to claim 1, wherein the steps are performed in a treatment facility.   Removing and purifying incinerated ash and soil containing harmful substances according to claim 1, wherein each device for performing the above steps is mounted on a moving means such as a vehicle, and the moving process is performed at a place where an object exists. Processing method.

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