JP2005334720A - Hazardous ion remover and well water pumping-up equipment using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple hazardous ion remover which easily removes hazardous ions, such as arsenic, contained in pumped-up ground water to thereby provide safe drinking water, and well water pumping-up equipment using the remover. <P>SOLUTION: The hazardous ion remover is equipped with a vessel through which the drinking water can pass and a particulate adsorbing substance which is loaded in the vessel so as to come into contact with the drinking water passing the inside of the vessel and is used for removing the hazardous ions in the drinking water. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a removal device for removing harmful ions such as arsenic from ground water pumped for beverages and a well using the device.

  Currently, it is estimated that 2 million people are exposed to high concentrations of arsenic throughout China and 10 million people in India and Bangladesh. In particular, Bangladesh, which is highly polluted, faces serious environmental problems because the water in hand pump wells is contaminated with arsenic in most of the country except for the hills.

  According to a report from the UK Department of International Development (DfID), a sampling survey of 3534 wells in 61 out of 64 provinces in Bangladesh from 1998 to 1999 revealed that the national standard for drinking water from about 25% of wells Arsenic exceeding (0.05 mg / L) has been detected. Based on this, 28 to 35 million out of 125.5 million people in Bangladesh are drinking well water containing arsenic that exceeds the country's standards.

  The World Insurance Organization (WHO) provides guidelines for setting the standard value of arsenic concentration in drinking water to 0.01 mg / L. In the DfID survey, about 45% of wells contained arsenic exceeding this value. In response to this situation, local media have begun to use the expression “the world's largest environmental pollution”.

  In 1983, the first arsenic poisoning patient was discovered in West Bengal, India, in contact with Bangladesh. The cause was found to be the formation of arsenic from the groundwater that was dissolved in the groundwater and then pumped up by a hand pump well for drinking. The Department of Environmental Studies (SOES) of the University of Jadabpur in Calcutta has confirmed arsenic-contaminated wells in 427 villages by 1995 and has estimated 200,000 patients.

  On the other hand, hand pump wells will be used in Bangladesh after 1971, independent of Pakistan. This is because the water in the pond and the water in the shallow well that had been drunk until then caused infectious diseases such as diarrhea and dysentery, 30 meters deep with the assistance of international organizations such as UNICEF and WHO, and foreign NGOs. This was because the water was switched to the water in the front and rear hand pump wells. In the 1980s, privately owned wells spread throughout the country after the cost of excavation became cheap, and there are now about 4 million wells, and 95-97% of the nation is said to be drinking well water. Yes.

  The first arsenic contamination of well water was confirmed in Bangladesh near the border with India by the Public Health Engineering Department (DPHE) of the Ministry of Local Autonomous Rural Development and Co-op (DPHE), which was monitoring well water. It was 1993 when arsenic exceeding the standard was detected from four wells of the prefecture Barobarrier Union. The following year in 1994, the Institute of Preventive Social Medicine (NIPSOM) of the Ministry of Insurance and Family Welfare confirmed eight arsenic poisoning patients in the same province of Chapainababuganj. This was reported at the "International Conference on Arsenic in Groundwater" held in Calcutta, India in 1995, and arsenic contamination in Bangladesh has become internationally known.

  Diseases that occur from long-term arsenic intake are called “chronic arsenic poisoning”. It begins with mucosal symptoms such as conjunctivitis, gastroenteritis, and bronchitis, and causes characteristic symptoms such as pigmentation, depigmentation, and keratinization on the skin, and it is a scary disease that affects peripheral nerves, urinary organs, liver, and circulatory organs Is to cause cancer in the skin, lungs and liver through a long incubation period. According to the three-stage symptom assessment, Bangladesh patients are almost at the mild or moderate stage, and so far there are few severe patients. However, since no national health survey has been conducted, the total number of patients is unknown.

  Currently, safe drinking water measures include the promotion of rainwater use, the installation of a pond sand filter (PSF), the drilling of deep wells 200m above ground, and the development of various arsenic removal devices (see, for example, Patent Document 1). Has been done.

JP 11-47763 A

  However, none of these measures are still sufficient. Firstly, long-term storage technology has not been established for rainwater, pond water is depleted at the end of the dry season and stable water supply cannot be achieved, and if deep wells are created in a rough manner, the contaminated water at the top may be drawn. Many problems have been pointed out. In addition, the use of an arsenic removal apparatus is currently only a small portion of homes installed, and it takes time and cost to disseminate widely, and some apparatuses are not easy to maintain and manage.

  In view of the above problems, an object of the present invention is to use a simple harmful ion removing apparatus capable of easily removing harmful ions such as arsenic contained in the pumped-up ground water and obtaining safe drinking water, and the apparatus. It is to provide well water pumping equipment.

  In order to achieve the above object, the harmful ion removing apparatus according to the first aspect of the present invention is loaded in the container so that the drinking water can pass through the container and the drinking water passing through the container. And an adsorbent in the form of particles for removing harmful ions in drinking water.

  A harmful ion removing device according to a second aspect of the present invention is the harmful ion removing device according to the first aspect, wherein the adsorbing material includes first particles made of an arsenic adsorbing material.

  The harmful ion removing apparatus according to a third aspect of the present invention is the harmful ion removing apparatus according to the second aspect, wherein the adsorbing substance is a second particle comprising an iron ion adsorbing substance and / or a manganese ion adsorbing substance. It further comprises 3 particles.

  The harmful ion removal apparatus according to the invention described in claim 4 is the harmful ion removal apparatus according to claim 3, wherein the container includes a plurality of individual containers for each of the first particles and the second particles or the third particles. It is characterized by including.

  The harmful ion removal apparatus according to the invention described in claim 5 is the harmful ion removal apparatus according to any one of claims 1 to 4, wherein the container is exchangeably mounted in a drinking water supply pipe. It consists of a cylindrical container.

  The harmful ion removing apparatus according to claim 6 is the harmful ion removing apparatus according to claim 5, wherein the cylindrical container includes an inlet at one end and an outlet at the other end. At least one of them is provided with a connecting mechanism with another similar cylindrical container.

  The harmful ion removing apparatus according to claim 7 is the harmful ion removing apparatus according to any one of claims 1 to 4, wherein the container includes an inlet and an outlet, and each of the inlet and the outlet is provided. A connecting structure for connecting a mouth of a commercially available plastic molding container for beverages is provided.

  The harmful ion removing apparatus according to claim 8 is the harmful ion removing apparatus according to any one of claims 1 to 4, wherein the container is formed of a flexible hose. Is.

  The harmful ion removing apparatus according to claim 9 is the harmful ion removing apparatus according to any one of claims 1 to 4, wherein the container is attached to an outlet of a drinking water faucet. It consists of a water-permeable bag which has an opening part.

  The harmful ion removing apparatus according to the invention described in claim 10 is the harmful ion removing apparatus according to claim 9, wherein the adsorbing substance is loaded in a stacked form consisting of a plurality of layers inside the bag. It is.

  The harmful ion removing apparatus according to an eleventh aspect of the present invention is the harmful ion removing apparatus according to the tenth aspect, wherein at least one layer of the stack is formed of first particles, and at least another layer is formed of second particles or first particles. It is formed by three particles.

  The harmful ion removal apparatus according to the invention described in claim 12 is the harmful ion removal apparatus according to any one of claims 1 to 4, wherein the drinking water storage tank, the pump apparatus, and the pump apparatus are used in the storage tank. And a circulation piping system for deriving the drinking water and returning it to the storage tank again, and the container is interposed in the middle of the circulation piping system.

  A well water pumping facility according to a thirteenth aspect of the present invention includes a harmful ion removing device according to any one of the first to eleventh aspects, a power-driven or manual pumping pump, and the well water by the pump. A well water pumping facility comprising a pumping pipe for pumping water and a water tap connected to the pumping pipe, wherein the container is mounted in the pumping pipe or on the water tap.

  In the harmful ion removal apparatus according to the present invention, it is possible to easily remove harmful ions from drinking water and obtain safe drinking water with a simple configuration that can be handled in units of containers such as replacement of adsorbed substances. It is easy to maintain at the level and is suitable for spreading to groundwater contaminated areas.

  In addition, the well water pumping equipment using the harmful ion removing apparatus according to the present invention can efficiently remove harmful ions from drinking water automatically when pumping groundwater, and not only newly installed wells. Since existing wells can also be constructed, there is an effect that wells in which groundwater contamination is confirmed can be safely reused.

  In this invention, it is a harmful ion removal apparatus by which the adsorbent of the particle form for removing the harmful ion in drinking water is loaded in the container which can pass drinking water, and allows the drinking water to pass through this container. By this simple method, harmful ions in the drinking water in contact with the adsorbing substance can be adsorbed and removed.

  Therefore, using this harmful ion removal device, if drinking water contaminated with harmful ions such as groundwater pumped from a well is passed through the container, harmful ions can be removed to ensure safe drinking water. it can. Furthermore, in the harmful ion removing apparatus of the present invention, since the harmful ion adsorbing substance is in the form of particles, the container is more than the case where a powdered adsorbing substance in which the substance after adsorbing harmful ions easily flows out into drinking water is used. It is easy to hold the adsorbed material inside, does not need a fine filter to prevent the powder adsorbed material from flowing out, and has a simple configuration that can be handled in units of containers such as exchange of adsorbed material, so it is maintained at the household level. Easy to manage and suitable for spreading to groundwater contaminated areas.

  The first particles of the adsorbing material used in the present invention include those made of an arsenic adsorbing material. A harmful ion removing apparatus comprising a container loaded with such an arsenic adsorbing material is suitable for use in Bangladesh and other regions where arsenic contamination problems of groundwater are serious. The arsenic adsorbing substance can be widely used as long as it can adsorb and remove arsenic in the drinking water by contact with the drinking water, and may be one that is commercially available and used for purification of arsenic-contaminated water. Examples thereof include rare earth compounds such as lanthanum hydroxide, lanthanum carbonate, and yttrium carbonate.

  Although these arsenic adsorbing materials are mainly handled as powders, for example, a granular form of the adsorbing materials can be obtained by using alginate gel spheres in which the arsenic adsorbing materials are dispersed. In this gel sphere, a stock solution obtained by mixing an adsorbed powder with an alginate aqueous solution is dropped by a nozzle device into a solution that is brought into contact with the aqueous solution to cause a gelation and solidification reaction. Can be manufactured.

  The adsorbed particles as gel spheres by such a dripping gelation method can be obtained with a desired particle diameter by adjusting the setting conditions such as nozzle diameter, flow rate, and dropping speed at the time of dropping. A particle size that does not require a filter and is substantially easy to handle, for example, within a range of 0.5 mm to 2.0 mm including the most preferable particle size of about 1.0 mm can be selected.

  Furthermore, safer drinking water can be obtained if a substance that adsorbs toxic ions other than arsenic is used as the second and third particles. As 2nd particle | grains or 3rd particle | grains, what targets the thing which is not preferable to contain in drinking water, for example, an iron ion adsorption substance and a manganese ion adsorption substance, are mentioned. As a specific adsorbing substance, for example, an amorphous viscous mineral such as allophane or imogolite may be used. In the case of an adsorbing substance other than these arsenic adsorbing substances, a gel sphere can be obtained as described above in the form of particles if it is a powder.

  In addition, if the first particles, the second particles, and the third particles made of different adsorbents are loaded in a plurality of individual containers, each particle can be handled for each container. It can be exchanged for each container according to the life of each particle, and each adsorbed substance can be used efficiently, and maintenance and management as a toxic ion removing device is facilitated.

  A plurality of containers loaded with different adsorbent particles as described above may be used separately and the removal process of each harmful ion may be performed in a separate process. If it is possible to dispose a plurality of harmful ions at a time using each container continuously, it is efficient. In this case, if the container loaded with the first particles made of the arsenic adsorbing substance is arranged on the most upstream side, arsenic contamination of other adsorbing substances can be avoided, and handling after use becomes easy.

  The harmful ion removing apparatus as described above can be used by attaching it to existing equipment, in addition to the single use of allowing drinking water to pass through the container. For example, if the container in which the adsorbing substance is loaded is a cylindrical one that can be replaced in the drinking water supply pipe, harmful ions such as arsenic can be adsorbed from the drinking water using the existing piping equipment. Safe drinking water can be supplied with simple management.

  When such a cylindrical container is used, the adsorbing substance is charged by, for example, filling a container with adsorbed particles and having a through hole of a predetermined size through which drinking water can pass and adsorbed particles cannot pass at both ends of the container. This can be done with a simple configuration of attaching a member.

  In addition, when a plurality of individual cylindrical containers loaded with first particles, second particles, and third particles made of different adsorbing substances are mounted in the water supply pipe, each cylindrical container has an inlet at one end, If the outlet is provided at the other end, and at least one is provided with a connecting structure with another cylindrical container, a plurality of cylindrical containers can be sequentially connected along the flow direction of drinking water. Mounting in the piping is easy.

  Moreover, when using as a harmful ion removal apparatus independently, if the commercially available plastic molded container for drinks can be utilized for supply and collection | recovery of drinking water, for example, the harmful ion removal work of drinking water can be easily performed anywhere. In this case, a container in which harmful ion-adsorbing substances are loaded may be provided with an inlet and an outlet, and both ports may be provided with a connecting structure that can be connected to the mouth of the molded container.

  As commercially available plastic containers for beverages, so-called PET bottles are most easily obtained, but since most of them are generally male threaded so that the mouth is closed with a screw cap, such plastics are used. If a molded container is used, it is possible to obtain a good connection state by subjecting the inlet and outlet of the container to female threads so as to be screwed into the male threads of the mouth. In this case as well, a connecting structure for connecting containers loaded with adsorbent particles may be provided separately from the connecting structure for connection with the mouth of the plastic molded container.

  Moreover, you may utilize a flexible hose as a container with which adsorption substance is loaded. This hose may be generally commercially available, and if one end of the hose is attached to the drinking water supply section, the drinking water from which harmful ions have been removed from the other end can be recovered. Moreover, harmful ions in drinking water supplied from the faucet can be removed simply by attaching one end of the hose to a water faucet in the same manner as a normal hose.

  Even when a flexible hose is used in this way, a plurality of hoses loaded with particles made of different adsorbents can be provided if at least one of the inlet and outlet of the hose container is connected to another hose container. Containers can be connected in series, and multiple types of harmful ions can be removed at once.

  Moreover, what consists of a water-permeable bag can be utilized as another form of a container. If this bag is equipped with an adsorbent substance inside and has a connection opening fitted to the outlet of the drinking water tap, the drinking water coming out of the tap enters the bag and contacts the adsorbing substance. After the harmful ions are removed, the permeation out of the bag. The bag may be water-permeable, and for example, a cloth bag can be used.

  Furthermore, if it is set as the structure with which the inside of this bag is loaded with an adsorbent substance in the laminated form which consists of a some layer, a some toxic ion can be removed from drinking water at once. For example, at least one of them can be formed with first particles made of an arsenic adsorbing substance, and the other layer can be formed with second particles or third particles. Such a laminated form can be formed by providing a plurality of layer spaces in the bag itself and filling each space with particles. Moreover, the structure which carries out lamination | stacking loading of the water-permeable small bag with which each particle | grain was filled in the bag used as a container main body may be sufficient.

  In addition, even in a configuration in which harmful ions are removed by passing the container loaded with the adsorbing material only once as described above, sufficiently safe drinking water can be obtained by setting the performance of the adsorbing material and the loading amount. A harmful ion removing device is constructed by interposing a container in the middle of a circulation piping system for extracting drinking water in the drinking water storage tank and returning it to the drinking water storage tank again by passing it through the container. If the removal process of harmful ions is repeated, the removal of harmful ions can be carried out more thoroughly with the same amount of adsorbent than the removal process with a single passage through the container, and the same level of removal effect can be achieved with a small amount of adsorbent. can get.

  Even in such harmful ion removal apparatus that can repeatedly process by circulation of drinking water, a plurality of separate containers each loaded with the first to third particles can be arranged in the circulation piping system. If so, multiple types of harmful ions such as arsenic, iron ions, manganese ions and the like can be efficiently removed at the same time.

  If the well water pumping equipment is configured using the harmful ion removing apparatus as described above, it is possible to efficiently remove harmful ions from drinking water automatically when pumping up groundwater. In such well water pumping equipment, a harmful ion removal device container is installed inside a pumping pipe for pumping up well water by a power-driven or manual pumping pump and a water tap connected to the pumping pipe. Can be configured. Such facilities can be constructed not only with newly installed wells but also with existing wells, so that it is possible to obtain safe drinking water while reusing wells where groundwater contamination has been confirmed. Become.

  As a first embodiment of the present invention, FIG. 1 shows a well water pumping facility using a toxic ion removing device comprising a cylindrical container. FIG. 1A is a schematic longitudinal sectional view showing the overall configuration of the well water pumping equipment of the present embodiment, and FIG. 1B is a partially enlarged view showing a mounting portion of a harmful ion removing device used in the well water pumping equipment. FIG.1 (c) is the elements on larger scale which show the connection part of containers.

  The basic structure of the well water pumping equipment is the same as that of a conventional well, and a pump 1 installed on the ground is formed by excavating the ground to the groundwater layer to form a concrete frame well frame 2. The pumping pipe 3 is arranged in the water in the well frame 2. In this embodiment, the toxic ion removing device 8 has a plurality of cylindrical containers (10, 20, 30) loaded therein with various granular adsorbing substances for adsorbing and removing different harmful ions in the pumping pipe 3. It is something that is installed.

  Each of the cylindrical containers (10, 20, 30) has an outer diameter that matches the inner diameter of the pumping pipe 3, and drinking water can pass through both ends in the longitudinal direction while holding the adsorbed particles inside the container. A drinking water inlet (lower ground side) X and an outlet (upper ground side) Y comprising a plug member (12, 13) having a plurality of through holes are formed, and the cylindrical containers are on one inlet side. And a connecting structure Z that can be connected to each other on the other outlet side.

  As the connection structure Z, any mechanism can be adopted as long as it can detachably connect the cylindrical containers without disturbing the passage of drinking water. For example, on the outer peripheral surface of one container end. It is desirable that the attaching / detaching operation is as simple as possible, such as a threaded connection between the provided male threaded portion and the female threaded portion provided on the inner peripheral surface of the other container end.

  The cylindrical containers (10, 20, 30) connected in series by the connecting structure Z in this manner are containers that enter the pumping pipe 3 from the upper end opening of the pumping pipe 3 exposed to the base surface when the pump 1 is removed from the base 5. Although it can be inserted from the lower end, when a series of cylindrical containers are inserted into the upper end of the cylindrical container 10 arranged on the most ground side, which is the most downstream when pumping well water, A flange 9 for latching is provided.

  Therefore, the whole series of cylindrical containers (10, 20, 30) are fixed to the pumping pipe 3 in a suspended state by the hooking of the flange 9 on the upper end opening edge of the pumping pipe 3, and the pedestal is fixed in the suspended state at the upper end. If the pump 1 is placed on the top and returned, the installation of the harmful ion removing device 8 in the pumping pipe 3 is completed.

  Further, after a predetermined period of use corresponding to the life of the adsorbed particles, the harmful ion device 8 can be obtained by lowering the pump 1 from the base 5 again, removing the flange 9 and pulling up the series of cylindrical containers (10, 20, 30). It can be easily removed. The series of removed cylindrical containers (10, 20, 30) is similar to the above after releasing the connection between the containers and exchanging and reconnecting only the containers loaded with the adsorbent particles that need to be replaced. Since the adsorbed material can be exchanged by a simple operation of mounting in the pumping pipe 3, the well water pumping equipment can be maintained and managed safely and easily at a small area or at a household level.

  In the case of removing not only arsenic as harmful ions but also, for example, iron and manganese by such well water pumping equipment, the cylindrical container 30 loaded with arsenic adsorption particles 31 as the first particles, as the second particles A cylindrical container 20 loaded with iron adsorbent particles 21 and a cylindrical container 10 loaded with manganese adsorbent particles 11 as third particles made of manganese ion adsorbing material are prepared separately and connected in series as described above. What is necessary is just to comprise the harmful ion removal apparatus 8 formed. In this case, if the manganese adsorbing particles 11 and the iron adsorbing particles 21 are contaminated with arsenic, the handling after use becomes troublesome, so the cylindrical container 30 loaded with the arsenic adsorbing particles 31 is the most upstream (underground side). ) To be arranged.

  In the well water pumping equipment of the present embodiment having the above-described configuration, the ground water pumped up simply by driving the pump main body 1 manually or by power using the handle is sequentially passing through each cylindrical container. Each harmful ion containing arsenic is adsorbed and removed at a time by contact with each adsorbent particle, and is supplied from the faucet 4 as safe drinking water.

  In the well water pumping equipment in the present embodiment, the case where the harmful ion removing device 8 is mounted in the pumping pipe 3 is shown. However, even if the structure is mounted in the water tap 4, harmful ions are automatically pumped when pumping the well water. It is possible to obtain drinking water from which water has been removed.

  In the first embodiment, the equipment for removing harmful ions in the drinking water at the same time as the well water is pumped is shown. However, the groundwater already pumped up can be obtained by using the one constructed separately from the well equipment. An example of a harmful ion removing device that can be processed to obtain safe drinking water from which harmful ions have been removed is shown in FIG. 2A as a second embodiment of the present invention.

  The harmful ion removal apparatus 40 according to the present embodiment uses a cylindrical container 41 as a container in which the first particles 42 mainly composed of an arsenic adsorbing substance are loaded, and the drinking water W1 to be subjected to arsenic removal treatment. A commercially available plastic molded container (P1, P2) called a so-called plastic bottle is used for the supply part and the recovery part for the treated drinking water W2.

  The cylindrical container 41 in the present embodiment has a drinking water inlet X4 composed of a plug member (43, 45) having a plurality of through holes through which drinking water can pass while holding the first particles 42 in the container at both ends. A female threaded portion that includes an outlet Y4 and that is screwed into the male threaded portion of the plastic container mouth as a connecting structure for connecting the mouths of the plastic containers (P1, P2) to the inner peripheries of the inlet X4 and the outlet Y4. (44, 46) are formed.

  Accordingly, the harmful ion removing apparatus 40 places the plastic container P2 for collecting the drinking water W2 after the removal of arsenic, and the female screw portion 46 on the outlet side of the cylindrical container 41 is screwed into the mouth to be connected. Then, the opening of the plastic container P1 from which the bottom for supplying the drinking water W1 to be subjected to arsenic removal processing is connected to the female screw portion 44 on the inlet side of the cylindrical container 41 is screwed and connected in a funnel shape. Consists of.

  In the harmful ion removing apparatus 40 having the above-described configuration, the groundwater (drinking water W1) falls from the plastic container P1 to the cylindrical container 41 simply by injecting the groundwater pumped up by the well into the plastic container P1. Then, the arsenic passes through the container 41 in contact with the first particles 42 while being adsorbed and removed, falls into the plastic container P2, and is recovered as safe drinking water W2.

  In addition, in the configuration of the harmful ion removing apparatus using a commercially available plastic molded container for supplying and collecting drinking water, a mechanism that can be connected to each other separately from the connecting structure for connecting to the mouth of the plastic container. It is possible to remove not only arsenic but also other harmful ions by using a plurality of cylindrical containers provided with.

  For example, as shown in FIG. 2B, a first cylindrical container 51 loaded with arsenic adsorption particles 52 and a second cylindrical container 55 loaded with iron adsorption particles and manganese adsorption particles 56 are used. The harmful ion removing apparatus 50 is constituted by two cylindrical containers.

  In this case, the first cylindrical container 51 is formed with an internal thread portion 53 as a coupling mechanism connected to the opening of the plastic container P1 for supplying the drinking water W1 to be processed on the inlet X5 side. As for the 2nd cylindrical container 55, the internal thread part 57 as a connection mechanism screwed and connected to the opening | mouth of the plastic container P2 for collect | recovering the drinking water W2 after a process is formed in the exit Y5 side. And a plastic for supplying drinking water W1 if the outlet 54 of the first cylindrical container 51 and the inlet 58 of the second cylindrical container 55 are connected to each other. By connecting the container P1 to the first cylindrical container 51, the second cylindrical container 55 and the plastic container P2 for recovering drinking water W2, arsenic, iron and manganese can be removed at a time.

  If a harmful ion removing apparatus using a commercially available plastic container such as a so-called plastic bottle is used, for example, ground water pumped in advance before going to bed at night is simply injected into the plastic container P1 for supply. Thus, the removal process of arsenic and other harmful ions proceeds at night, and the drinking water W2 for the day is collected in the plastic container P2 the next morning, which can be safely consumed.

  Next, as a third embodiment of the present invention, FIG. 3A shows a case where a container made of a flexible hose is used as a container of a harmful ion removing apparatus. The flexible hose may be a widely used one such as a so-called water supply hose.

  First, the harmful ion removing apparatus 60 has arsenic adsorbing particles 62 loaded in a hose container 61 having a predetermined length, and both ends thereof have through holes through which drinking water can pass while holding the arsenic adsorbing particles 62 inside. A plurality of plug members (63, 64) are provided to form drinking water inlet X6 and outlet Y6.

  In the case of the container 61 made of such a flexible hose, for example, the end portion on the inlet side is fitted and fixed to the bottom water supply port of the bucket container B1 for supplying the drinking water W1 to be treated. A simple harmful ion removing device 60 is configured simply by installing the recovery bucket container B2 below the outlet side in a state where B1 is installed at a high place and the hose container 61 is in a suspended state.

  In such a configuration, the ground water (drinking water W1) that has already been pumped from a well or the like is simply poured into the bucket container B1, and the drinking water W1 naturally falls within the hose container 61 and takes a predetermined time. As the arsenic passes through while being adsorbed and removed while contacting the first particles 62 in the container 61, the arsenic-removed drinking water W2 is discharged from the outlet Y6 and accumulates in the recovery bucket container B2. Can be safely consumed.

  Further, as shown in FIG. 3 (b), the harmful ion removing apparatus 60 comprising such a hose container 61 is fitted to the faucet 25 of the water supply as in the case of using a normal hose, as shown in FIG. It is possible to obtain safe drinking water while removing arsenic from tap water contaminated with arsenic supplied from the tap 25 simply by inserting and fixing.

  When using a container made of a flexible hose as the harmful ion removing apparatus as described above, a plurality of different hose containers loaded with various adsorbent particles are prepared, and the above-described bucket container B1 or It is possible to remove harmful ions other than arsenic by simply replacing the tap 65, but a plurality of hose containers filled with different harmful ion adsorbent particles are connected to each other to form one long hose container. If used, multiple types of harmful ions including arsenic can be removed at once.

  For example, as shown in FIG. 3C, a first hose container 71 in which arsenic adsorption particles 72 are loaded, a second hose container 73 in which iron adsorption particles 74 are loaded, and manganese adsorption A single hose-like harmful ion removing device 70 can be configured by connecting the third hose container 75 in which the particles 76 are loaded in series.

  In this case, on the inlet side of the first hose container 71, there is provided a plug member 77 having a large number of through-holes through which drinking water is passed while holding the arsenic adsorbent particles 72 therein, and the end of the stopper member 77 is provided at the end. It becomes the inlet X7 of the whole hose fitted in the bottom water supply port of the bucket container B1 for supply of food, while the outlet side of the third hose container 75 penetrates the drinking water while holding the manganese adsorption particles 76 inside. A plug member 78 having a large number of holes is provided to serve as the outlet Y7 for the entire hose, the outlet side end of the first hose container 71, the inlet side end of the second hose container 73, and the second hose. The outlet side end portion of the container 74 and the inlet side end portion of the third hole container 75 are connected to each other.

  For example, as a mechanism for connecting the hose containers to each other, a stopper member for holding the adsorbed particles in the hose container may be used while drinking water is circulated. That is, in the harmful ion removing device 70, the outlet side end of the first hose container 71 and the inlet side end of the second hose container 73 and the outlet side end of the second hose container 74 3, a connecting member Z7 that can connect the hose ends to each other is disposed between the inlet side ends of the hole container 75, and the connecting member Z7 allows the drinking water to pass therethrough on both sides of the hose container. What is necessary is just to function as a plug member which can hold | maintain each adsorption particle.

  Further, the container loaded with the adsorbing substance of the harmful ion removing apparatus of the present invention is not limited to a tubular shape such as the above-described embodiment, and a tubular shape such as a hose shape. Any adsorbent particles can be used as long as they can hold the adsorbed particles and the drinking water can be discharged out of the bag after contacting the adsorbed particles.

  Then, next, as a fourth embodiment of the present invention, FIG. 4 shows a case where a container made of a water-permeable cloth bag is used for loading adsorption particles. The harmful ion removing apparatus 80 shown in FIG. 4A is configured by attaching a cloth bag container 81 filled with arsenic adsorption particles 82 to the outlet of the faucet 4 of the well water pumping pump 1 at the opening 83 of the bag. It is configured simply by connecting.

  According to this harmful ion removing device 80, when the pump 1 is driven as usual to pump up the well water, the groundwater pumped up and discharged from the water tap 4 is arsenic by the first particles 82 via the cloth bag container 81. Is recovered as safe drinking water that has been adsorbed and removed.

  In addition, as a structure using such a water-permeable cloth bag container, as shown to Fig.4 (a), it is not restricted to what fills adsorption particle | grains inside a simple bag-shaped thing, FIG.4 (b) As shown, the inside of the cloth bag container 84 may have a double structure, and a space 85 for filling the arsenic adsorption particles 82 on the surface side may be formed.

  Furthermore, it is good also as a container structure which can load the particle | grains which adsorb | suck other harmful ions other than the arsenic adsorption particle | grains 82, and can remove multiple types of harmful ions at once. In this case, for example, as shown in FIG. 4 (c), if a plurality of laminated spaces (87, 88) are formed with a multi-layered structure inside the cloth bag container 86, arsenic adsorbing particles 82 and iron adsorbing particles are respectively formed in each layer. Other adsorbent particles 89 such as manganese adsorbent particles can be loaded in a stacked form.

  In the harmful ion removing apparatus using a container made of a water-permeable bag as described above, if the opening 83 can be connected to the well 1 as well as the faucet 4 of the well, for example, a faucet of a water supply It can be easily used for removing harmful ions in drinking water.

  Moreover, in the above embodiment, the configuration in which the harmful ions are removed by passing the inside of the container loaded with the adsorbent particles once has been shown, but the drinking water is circulated and passed through the container many times. FIG. 5 (a) shows a harmful ion removing apparatus that repeats the removal process of harmful ions as a fifth embodiment of the present invention. The harmful ion removing apparatus 90 according to the present embodiment is loaded with the first particles 95 made of an arsenic adsorbing substance in the middle of a circulation piping system 93 for extracting the drinking water W3 in the storage tank 91 by the pump apparatus 92 and circulating it to the storage tank 91 again. The container 94 is inserted and configured.

  In this harmful ion removing device 90, every time the drinking water W3 circulates in the circulation piping system 93 and repeatedly passes through the container 94, the arsenic is adsorbed and removed by contacting the arsenic adsorption particles 95, and the drinking water W3 is stored in the storage tank 91. Every time the process returns to, the arsenic concentration is further reduced.

  In a configuration in which harmful ions are removed by passing through a container loaded with adsorbent particles only once, adequately safe drinking water can be obtained by appropriately setting the adsorbent particle performance and loading amount. If it is configured to repeat the removal process of harmful ions by passing through the container many times, the removal of harmful ions can be performed more thoroughly with the same amount of adsorbed particles than the removal process by passing the container once. Alternatively, a similar removal effect can be obtained with a small amount of adsorbed particles.

  In this way, since a relatively small amount of adsorbent particles can be used, if the container 94 is a cartridge type that can be easily attached to and detached from the circulation piping system 93, for example, the adsorbed particles after use can be easily replaced. Yes. Further, if a configuration in which a plurality of such cartridges can be connected to the circulation piping system 93 is provided, as shown in FIG. 5B, even in the circulation type harmful ion removing apparatus, only the arsenic adsorption particles 95 are used. Instead, for example, iron adsorbent particles 97 and manganese adsorbent particles 98 are loaded in each cartridge and used in a mutually connected state, whereby a plurality of types of harmful ions can be adsorbed and removed at a time.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the well water pumping equipment using the harmful ion removal apparatus by 1st Example of this invention, (a) is sectional drawing which shows the whole structure of this well water pumping equipment, (b) is a dotted line of this equipment. The enlarged view of the mounting part of the harmful ion removal apparatus enclosed with A, (c) is a schematic enlarged view of the connection structure part of cylindrical containers. It is a schematic block diagram of the harmful ion removal apparatus by 2nd Example of this invention, (a) is a block diagram at the time of using one cylindrical container with which arsenic adsorption particle was loaded, (b) is mutually connected. It is a block diagram at the time of using the two cylindrical containers made. It is a schematic block diagram of the harmful ion removal apparatus by 3rd Example of this invention, (a) is a block diagram at the time of using one hose container with which arsenic adsorption particle was loaded, (b) is mutually connected. FIG. 4 is a configuration diagram when three hose containers are used, and FIG. 3C is a configuration diagram when the hose container of FIG. It is a schematic block diagram of the harmful ion removal apparatus by 4th Example of this invention, (a) is a block diagram at the time of using the cloth bag container with which the whole inside was filled with the arsenic adsorption particle, (b) is a double structure (C) is a block diagram in the case of using a multiple bag increase cloth bag container in which each adsorbed particle is loaded in a laminated form. It is a schematic block diagram of the circulation type harmful ion removal apparatus by 5th Example of this invention, (a) is a block diagram at the time of using the container which consists of one cartridge with which arsenic adsorption particle was loaded, (b) ) Is a configuration diagram in the case of using a container formed by connecting three cartridges.

Explanation of symbols

1: pump 2: concrete well frame 3: pumping pipe 4: water tap 5: pedestal 8, 40, 50, 60, 70, 80, 90: harmful ion removal device 9: flange 10, 20, 30, 41, 51, 55: Cylindrical containers 11, 76, 98: Manganese adsorbing particles 12, 13, 43, 45, 63, 64, 77, 78: Plug members X, X4, X5, X6, X7: Inlet Y, Y4, Y5, Y6 Y7: outlet 54: cylindrical container outlet 58: cylindrical container inlet Z: coupling structure Z7: coupling members 21, 74, 97: iron adsorbing particles 31, 42, 52, 62, 72, 82, 95: Arsenic adsorption particles 56: Manganese adsorption particles and iron adsorption particles

44, 46, 53, 57: female threaded portions 61, 71, 73, 75: hose container 65: tap water taps 81, 84, 86: cloth bag container 85: adsorbed particle filling space 87, 88: laminated space 83: connection opening Portion 89: Iron adsorption particle or manganese adsorption particle 91: Drinking water storage tank 92: Pump device 93: Circulation piping system 94, 96: Cartridge type container P1: Plastic molded container (for drinking water supply)
P2: Plastic molded container (for drinking water recovery)
B1: Bucket container (for drinking water supply)
B2: Bucket container (for drinking water recovery)
W1: Drinking water (before treatment)
W2: Drinking water (after treatment)
W3: Drinking water

Claims (13)

A container through which drinking water can pass, and an adsorbent in the form of particles, which is loaded into the container so as to come into contact with drinking water passing through the container and removes harmful ions in the drinking water,
A harmful ion removal apparatus comprising:   The harmful ion removing apparatus according to claim 1, wherein the adsorbing substance includes first particles made of an arsenic adsorbing substance.   The harmful ion removing apparatus according to claim 2, wherein the adsorbing substance further includes second particles made of an iron ion adsorbing substance and / or third particles made of a manganese ion adsorbing substance.   The harmful ion removing apparatus according to claim 3, wherein the container includes a plurality of individual containers for each of the first particles and the second particles or the third particles.   The harmful ion removing apparatus according to any one of claims 1 to 4, wherein the container is a cylindrical container that is replaceably mounted in a drinking water supply pipe.   6. The cylindrical container is provided with an inlet at one end and an outlet at the other end, and at least one of the inlet and outlet is provided with a connecting mechanism for another similar cylindrical container. The harmful ion removing device described in 1.   The said container is provided with the inlet and outlet, and the connection structure for connecting the opening | mouth of the commercially available plastic molding container for drinks to each of these inlets and outlets is provided. The harmful ion removing apparatus according to claim 1.   The harmful ion removing apparatus according to claim 1, wherein the container is made of a flexible hose.   The harmful ion removing apparatus according to any one of claims 1 to 4, wherein the container is formed of a water-permeable bag having a connection opening that is attached to an outlet of a drinking water faucet.   The harmful ion removing apparatus according to claim 9, wherein the adsorbing substance is loaded in a stacked form including a plurality of layers inside the bag.   The harmful ion removing apparatus according to claim 10, wherein at least one layer of the stacked layer is formed of first particles, and at least another layer is formed of second particles or third particles.   The apparatus further comprises a drinking water storage tank, a pump device, and a circulation piping system for extracting drinking water in the storage tank by the pump device and returning the drinking water to the storage tank again. The container is interposed in the middle of the circulation piping system. The harmful ion removing apparatus according to any one of claims 1 to 4, wherein the harmful ion removing apparatus is provided. A harmful ion removing apparatus according to any one of claims 1 to 11, a power-driven or manual pump, a pump pipe for pumping up water from a well, and the pump. A well water pumping facility comprising a water tap, wherein the container is attached to the pumping pipe or the water tap.

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