WO2007097137A1

WO2007097137A1 - Method of removing asbestos contained in water and apparatus for removing the same

Info

Publication number: WO2007097137A1
Application number: PCT/JP2007/050506
Authority: WO
Inventors: Toshiharu Fukai
Original assignee: Toshiharu Fukai
Priority date: 2006-02-23
Filing date: 2007-01-16
Publication date: 2007-08-30
Also published as: TWI403468B; JP4939077B2; JP2007222775A; TW200732256A

Abstract

A method of removing asbestos contained in water. By the method, asbestos contained in water, e.g., tap water, can be easily removed. Water containing asbestos is passed through a vessel (18) in which a mixture of aluminum (14) and tourmaline (16) is contained. The aluminum (14) and the tourmaline (16) are stirred by the resultant water pressure. Due to the grinding caused by the stirring of the aluminum (14) and the tourmaline (16), the asbestos is adsorbed onto the aluminum and can be removed from the water.

Description

Specification

Method and apparatus for removing asbestos contained in water

Technical field

[0001] The present invention relates to a removal method for removing asbestos contained in water such as tap water, and a removal apparatus therefor.

Background art

[0002] In most countries around the world, the main water used in daily life is tap water. In the latter half of the 20th century, so-called “asbestos cement water pipes” were used for water pipes, which coated the inner wall with asbestos that had excellent fire resistance, heat resistance, and wear resistance. Recently, it was found that asbestos is a carcinogenic substance, and many employees engaged in the production of asbestos-cement water pipes suffered cancer damage. Asbestos damage has been found to cause cancer due to atmospheric suction, but it is still unclear whether the tap water passing through the asbestos-cement water pipes is safe.

[0003] From the 1980s to 2000, analysis of asbestos contained in tap water that passed through asbestos-cement water pipes was conducted in many cities around the world, including cities in the United States and cities in Japan. It was broken. The average number of asbestos fibers in one liter of tap water was about 1 million, tens of thousands to hundreds of thousands in small cities, and millions in many cities.

[0004] Tap water is mainly used at home for eating, drinking, washing, bathing and the like. In commercial use, it is used for a wide variety of purposes, including eating and drinking, washing, farm products, fruit and plant breeding, and seafood rearing and aquaculture. Since the effects of asbestos appear in the human body after several decades, it can be seen that the tap water that has passed through the asbestos-cement water pipe has a negative impact on the human body. For this reason, in many cities around the world, asbestos-cement water pipes have been gradually replaced with non-asbestos water pipes. Asbestos-cement water pipes are still in use.

[0005] As measures for removing tap water impurities, magnets, activated carbon, etc. are used to remove impurities to make them good for the body and to make drinking water. What makes water is known (Patent Document 1). However, asbestos contained in tap water The ability to affect the human body has recently become a problem, and research to remove asbestos contained in canal water has hardly been conducted until now.

[0006] Patent Document 1: JP 2004-321904 A

Disclosure of the invention

Problems to be solved by the invention

[0007] It is clear that tap water passing through asbestos-cement water pipes contains asbestos. Although no clear conclusion has yet been reached, in view of the adverse effects of asbestos on air suction, tap water containing asbestos was taken into the body by eating and drinking or was washed with tap water. Wearing clothing is considered to have an adverse effect on the human body. From the above, it is desirable to remove asbestos contained in tap water.

[0008] The present invention has been made in view of the above points, and an object of the present invention is to provide a method for removing asbestos contained in water and an apparatus for removing the same that can easily remove asbestos contained in water such as tap water. To do.

Means for solving the problem

[0009] The method for removing asbestos contained in water according to the present invention allows water containing asbestos to pass through a container in which aluminum and tourmaline are mixed and contained, and the aluminum and tourmaline are jointly used by the water pressure of the water. It is characterized by shifting. The present invention is characterized in that a weight mixing ratio of the aluminum and the tourmaline is 1:10 to: LO: 1. The present invention is characterized in that the aluminum is a plate-like one formed into a spiral shape. The present invention is characterized in that the container is made of aluminum. In the present invention, the water containing the asbestos is first passed through an ion exchange resin that removes calcium ions and magnesium ions, and then the water is passed through the container containing the aluminum and the tourmaline mixed. It is characterized by.

[0010] An apparatus for removing asbestos contained in water according to the present invention is for removing asbestos from water containing asbestos, comprising a container, aluminum contained in the container, and tourmaline. And a bottom surface having a water passage hole and a spiral groove formed on the inner wall of the container for promoting the stirring of water. Is. The present invention is characterized in that the weight mixing ratio of the aluminum and the tourmaline is between 1:10 and LO: 1. The present invention is characterized in that the aluminum is a plate having a spiral shape. The present invention is characterized in that the material of the container is aluminum. In the present invention, a tank that stores therein an ion exchange resin that removes calcium ions and magnesium ions is connected to the bottom side of the container by a connecting pipe, and water containing asbestos passes through the tank and the container in this order. It is characterized by making it happen.

The invention's effect

[0011] According to the present invention, asbestos contained in water can be removed simply by passing water containing asbestos through a container containing aluminum and tourmaline by water pressure or the like. In the present invention, electricity is not used, and only the aluminum and tourmaline contained in the container are replaced, and the asbestos can be efficiently removed with low cost and power. In addition, before introducing water into the container, calcium ion and magnesium ion are removed by passing ion exchange resin. As a result, calcium ions and magnesium ions do not adhere to the tourmaline contained in the container, and the function of the tourmaline continues. Therefore, the tourmaline replacement period can be extended to reduce maintenance costs, which is economical for the user.

[0012] Since a spiral groove was formed on the inner wall of the container, stirring of aluminum and tourmaline was promoted, and a large number of negative electrodes to aluminum due to co-slip of aluminum and tourmaline can be generated. Asbestos adhesion to can be promoted. In addition, since the container is made of aluminum, the area of the aluminum that comes into contact with water is increased, and the replacement period of aluminum, tourmaline, and its container can be made very long, reducing maintenance costs. In addition, since the tank containing the ion exchange resin and the container containing aluminum and tourmaline are connected and the aluminum and tourmaline are stirred by the water pressure passing through them, the apparatus can be made at low cost.

Brief Description of Drawings

FIG. 1 is a block diagram showing an embodiment of an asbestos removal apparatus according to the present invention.

FIG. 2 is a cross-sectional view of a tank used in the water removal apparatus shown in FIG.

FIG. 3 is a photograph showing asbestos per unit volume before and after removal by the removal apparatus of the present invention. It is.

Explanation of symbols

[0014] 10 Ion exchange resin

12 tanks

14 Aluminum

16 Tourmaline

18 containers

36 Spiral groove

BEST MODE FOR CARRYING OUT THE INVENTION

Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of an asbestos removal apparatus according to the present invention. In the present invention, it has a tank 12 for containing an ion exchange resin 10 for removing calcium ions and magnesium ions inside, and a container 18 for containing aluminum 14 and tourmaline 16 inside. They are connected via a communication pipe 20. For example, a water supply pipe 22 is connected to the tank 12 for introducing pressured water such as tap water. In the middle of the water supply pipe 22, an inlet opening / closing valve 24 such as a faucet is provided on the upstream side, and a check valve 26 is provided on the downstream side. A discharge pipe 28 is connected to the downstream side of the container 18, and an outlet opening / closing valve 30 is provided at the tip or middle of the discharge pipe 28.

In the present invention, high-pressure water is discharged from the discharge pipe 28 to the outside from the water supply pipe 22 via the tank 12, the communication pipe 20, and the container 18. The tap water itself is high-pressure water, but water other than tap water may be introduced into the container 18 via the tank 12 via the pump 12 (not shown)! ,.

[0017] The tank 12 has a capacity for accommodating the granular ion exchange resin 10 therein. In order to facilitate the exchange of the ion exchange resin 10, the ion exchange resin 10 is placed on a net (not shown). It is desirable to store it in the container of tank 12 in the state of being put. In FIG. 1, a force indicating that only one tank 12 is provided. A plurality of tanks 12 may be arranged in series via a connecting pipe (not shown). Depending on the water flow rate, the inner diameter of the tank, the storage height of the ion exchange resin 10, and the number of tanks connected in series can be arbitrarily set. [0018] FIG. 2 shows a cross-section of a container 18 that contains aluminum 14 and tourmaline 16. A large number of water passage holes 34 are formed in the bottom surface 32 of the container 18 as a bottom surface, and the bottom surface 32 side of the container 18 and the tank 12 are connected by a connecting pipe 20 (FIG. 1). That is, it sets so that the water of high water pressure, such as a tap water, may be injected toward the top from the bottom with respect to the aluminum 14 and tourmaline 16 which were accommodated in the container 18. FIG. The amount of aluminum 14 and tourmaline 16 and the size and number of holes 34 are set so that aluminum 14 and tourmaline 16 can move freely in container 18 and be agitated by the momentum of the water jetted. In addition, by dispersing the aluminum 14 and tourmaline 16 in a plurality of containers 18 with a reduced storage volume to form a plurality of stages, and connecting these containers 18 together, the tourmaline 16 and the aluminum 14 are agitated by the momentum of water Efficiency can be increased. High-pressure water is sprayed into the anoremi 14 and 卜 norlemarine 16 in the container 18! /, And when injected well, the anoremi 14 and 卜 noremarin 16 collide with each other, and the aluminum 14 and tourmaline 16 rub against each other. The fact that this aluminum 14 and tourmaline 16 rub against each other is called co-grinding. That is, the aluminum 14 and the tourmaline 16 are set so as to be displaced due to the high water pressure sprayed into the container 18.

[0019] The aluminum 14 is formed in a plate shape in order to increase the contact area with the tourmaline 16, and the plate-like aluminum 14 is formed in a spiral shape (there is an overlapping portion in order to promote stirring of water in the container 18). Is also good). The material of the container 18 (inner wall) is preferably aluminum. Since the amount of aluminum 14 accommodated in the container 18 is limited, the effect of the present invention can be achieved more efficiently by configuring the inner wall of the container 18 with aluminum. Further, a spiral groove 36 is formed on the inner wall of the container 18. The spiral groove 36 is used to generate a large vortex along the groove 36 and a large number of small vortexes extending from the groove 36 in the water passing through the container 18. This is to promote stirring of water. This spiral groove 36 promotes stirring of the water in the container 18, and as a result, the aluminum 14 and the tourmaline 16 collide with each other, and a lot of co-slip (rubbing due to the collision between the aluminum 14 and the tourmaline 16) occurs. To do.

[0020] Tourmaline 16 may be a crushed tourmaline stone, but the weight ratio of tourmaline, ceramic and acid-aluminum (including silver) is about 10:80: A tourmaline mixture called “Tourmaline Pellets” sold as 10 may be used. The weight ratio between tourmaline 16 and aluminum 14 is preferably about 10: 1 to 1:10 (including numerical values at both ends). More than this range If it is outside, the number of electrodes generated by co-slip (described later) will not reach the desired range.

[0021] The ion-exchange resin 10 is used for softening water by removing metal ions such as calcium ions (Ca ²⁺ ) and magnesium ions (Mg ²⁺ ) contained in water. It is. As the ion exchange resin 10, for example, it is desirable to use a strongly acidic cation exchange resin (RzSO Na) in which a spherical copolymer of styrene vinylbenzene is uniformly sulfonated. This ion

Three

Exchange resin 10 is contained in water and causes the following ion exchange reaction with metal ions such as calcium ions and magnesium ions.

2RzSO Na + Ca ²⁺ → (RzSO) Ca + 2Na ⁺

3 3 2

2RzSO Na + Mg ²⁺ → (RzSO) Mg + 2Na ⁺

3 3 2

2RzSO Na + Fe ²⁺ → (RzSO) Fe + 2Na ⁺

3 3 2

That is, by passing the ion exchange resin 10, calcium ions, magnesium ions, etc. contained in the water can be removed. By using strongly acidic cationic exchange resin (RzSO Na) as ion exchange resin 10, sodium ions (Na +) are generated.

Three

The ion exchange resin 10 may be one that generates other than Na +, but one that generates Na + is preferred. However, it is necessary to remove calcium ions and magnesium ions in the water by passing through the ion exchange resin 10. Although tap water contains chlorine, it does not change as it passes through tap water S ion exchange resin 10.

[0022] The following changes occur when water (H 2 O) force ion exchange resin 10 is passed through.

2

H O → H + + OH— (1)

2

H O + H + → H O + …… (2)

twenty three

In addition, a portion of the hydronium ion (H 0+) is combined with water (H 2 O) to form a hydroxy nore

3 2

(H O) and hydrogen ion (H +).

3 2

H O + + H O → H O— + 2H + …… (3)

3 2 3 2

That is, as shown in (1) 2) 3), by passing through the ion-exchange resin 10, the hydroxide ions (OH—), hydronium ions (H 0+) and hydroxyl ions are removed from the water. (HO-) and hydrogen ions

3 3 2

(H +) occurs. [0023] The water that has become soft water after passing through the tank 12 is then introduced into the container 18 containing the aluminum 14 and the tourmaline 16 from below to above. At this time, the aluminum 14 and tourmaline 16 accommodated in the container 18 are agitated by water pressure or the like, and a spiral large and small vortex is generated by the spiral groove 36 of the container 18, and the aluminum accommodated in the container 18. 14 and tourmaline 16 are well agitated. This agitation of water causes aluminum 14 and tourmaline 16 to collide with each other and cause co-slip.

[0024] By co-grinding aluminum 14 and tourmaline 16, a large amount of positive electrode is generated in tourmaline 16 (a large amount of negative electrode is also generated), and aluminum 14 has a negative electrode of 200mmV to -8V. Occur in large quantities.

Since tourmaline 16 has a positive electrode and a negative electrode, when tourmaline is stirred with water, water (H 2 O) is dissociated into hydrogen ions (H +) and hydroxide ions (OH—).

2

H O → H + + OH— …… (4)

2

Furthermore, hydrogen ions (H 0+) are generated by hydrogen ions (H +) and water (H 2 O).

twenty three

H O + H + → H O + …… (5)

twenty three

A part of this hydronium ion (H 0+) is combined with water (H 2 O) to form a hydroxyreion ion

3 2

It becomes (H O-) and hydrogen ion (H +).

3 2

[0025] A large amount of negative electrodes are generated in the aluminum 14 due to the co-alignment between the aluminum 14 and the tourmaline 16. Asbestos adheres to a large number of negative electrodes generated in the aluminum 14. Adhesion of asbestos to aluminum 14 is mainly due to the large amount of negative electrodes generated in aluminum 14, but at least of hydroxide ions (OH—) and hydroxyl ions (H 2 O—).

3 2

One existence is imagined to be one of the factors. This can be imagined because the amount of hydrogen ions (H +) increases after the removal of asbestos when the asbestos removal is compared.

[0026] The present invention mainly introduces water containing asbestos into a container 18 containing aluminum 14 and tourmaline 16 under a high water pressure or the like so that the aluminum 14 and tourmaline 16 are co-removed in the container 18. It is what you want. However, tourmaline 16 stored in container 18 is liable to adhere to calcium ions and magnesium ions. It is desirable to remove the magnesium ions and soft water. If water (hard water) containing calcium ions or magnesium ions is introduced into the container 18, calcium ions or magnesium ions adhere to the tourmaline 16, and the effect of the tourmaline 16 is lost within a few days. In other words, the cogeneration of aluminum 14 and tourmaline 16 extremely reduces the generation of electrodes, and the asbestos removal effect disappears in a few days. For this reason, first, ion exchange resin 10 is passed to remove calcium ions and magnesium ions, and then water is passed through container 18 containing aluminum 14 and tourmaline 16. As a result, the tourmaline 16 can be used for a long time and the maintenance cost of the user can be reduced. It should be noted that the force of generating sodium ions through ion exchange resin 10 does not interfere with tourmaline 16 because sodium ions do not adhere to tourmaline 16.

Here, a comparison of the effects before and after using the method and apparatus of the present invention will be described based on photographs. Figure 3 (a) is a photograph of asbestos contained in tap water at Ueda Pass in Nagano Prefecture. In this Fig. 3 (a), the rod-shaped object indicates asbestos. FIG. 3 (b) is a photograph after the tap water of FIG. 3 (a) is passed through the apparatus of the present invention. The ability to find asbestos in the photograph shown in Fig. 3 (a) Asbestos cannot be found in the photograph shown in Fig. 3 (b). As a numerical value of the coefficient analysis result, there were 3400 asbestos per liter in the state of Fig. 3 (a). At Ueda Pass, water pipes were replaced with new ones, so the number of asbestos per liter is very small. In contrast, the number of bests in the state of Fig. 3 (b) was less than 50 per liter. From these photographs and numerical values, it can be seen that the method and apparatus of the present invention have various effects in removing asbestos. The test results (Figure 3 and figures based on these photographs) were dated December 27, 2005. Daido Analytical Research Co., Ltd. (2-30, Daidocho, Shonan-ku, Nagoya, Aichi Prefecture, Daido Steel) This was provided by the Technical Development Laboratory.

Claims

The scope of the claims

[1] A method for removing asbestos contained in water, wherein water containing asbestos is passed through a container containing a mixture of aluminum and tourmaline, and the aluminum and tourmaline are co-restrained by the water pressure of the water. .

[2] The method for removing asbestos contained in water according to claim 1, wherein a weight mixing ratio of the aluminum and the tourmaline is set to 1:10 to LO: 1.

[3] The aluminum according to claim 1 or 2, wherein the aluminum is a spiral plate-like one.

2. A method for removing asbestos contained in water.

4. The method for removing asbestos contained in water according to claim 1, wherein the material of the container is aluminum.

[5] The asbestos-containing water is first passed through an ion-exchange resin that removes calcium ions and magnesium ions, and then the water is passed through the container containing a mixture of the aluminum and the tourmaline. The method for removing asbestos contained in water according to any one of claims 1 to 4.

[6] For removing asbestos from water containing asbestos, formed on a container, aluminum and tourmaline mixedly accommodated in the container, a bottom surface having a water passage hole, and an inner wall of the container An apparatus for removing asbestos contained in water, comprising: a spiral groove for promoting stirring of water in the container.

7. The apparatus for removing asbestos contained in water according to claim 6, wherein a weight mixing ratio of the aluminum and the tourmaline is between 1:10 and LO: 1.

8. The apparatus for removing asbestos contained in water according to claim 6 or 7, wherein the aluminum is a plate-like one formed into a spiral shape.

9. The apparatus for removing asbestos contained in water according to claim 6, wherein the container is made of aluminum. 10. The asbestos contained in water according to claim 6, wherein the tank and the bottom side of the container are connected by a connecting pipe, and water containing asbestos is passed in the order of the tank and the container. Removal device.