JP4190986B2 - Method and apparatus for producing drinking water - Google Patents

Description

  The present invention relates to a method and apparatus for producing drinking water that has been purified by leaving mineral components in raw water, and that can be used for domestic water, food industry water, and the like.

  In general, it is known that an inorganic mineral substance can be brought into contact with drinking water to adjust the mineral content, or to supplement a deficient component so as to be healthy, and to produce a drinking water excellent in taste.

  Conventional drinking water production equipment is filled with water-permeable cartridges with the same structure as a water purifier and filled with natural mineral materials such as coral sand and limestone, and simultaneously filters and elutes mineral materials. The thing which aimed at the elution stabilization of the mineral component amount which detected and adjusted the elution amount of the component with electrical conductivity is known (refer patent document 1).

  Further, as a member for activating water by downsizing the water molecule cluster, Na, Al, Si, S, K, Ca, Ti, and Fe are contained as main components in an amount of 95% by weight or more in terms of oxides. A powder containing 1 to 4 parts by weight of titanium phosphide, 3 to 5 parts by weight of manganese oxide, and 1 to 2 parts by weight of magnetite as essential components for 100 parts by weight of fine mineral powder. A ceramic water activation member is known (see Patent Document 2).

  Moreover, a porous hollow fiber membrane is well known as a filter used for deodorization, dust removal and sterilization treatment of tap water and other drinking water (see Patent Document 1).

JP 7-256275 A (Claim 1, paragraphs 0003 and 0004)

Japanese Patent No. 2999769 (Claim 1)

  However, in the method for producing drinking water using the above-described conventional mineral agent, the resistance when passing through the water on the porous surface is large, and therefore water that is considerably pressurized is used, or It was necessary to install a large one so that water gradually oozes out from the filter medium, and the mineral component could not be sufficiently eluted in a short time.

  In addition, since the sterilization filter made of a hollow fiber membrane is a resin filter, salts and ions are easily adsorbed and separated, and even mineral components that feel the taste of potable water may be removed. However, it was not possible to produce mineral water (mineral water) that was purified by leaving the mineral components that were tasted and felt delicious.

  Then, the subject of this invention solves the above-mentioned problem, and makes it the manufacturing method and the manufacturing apparatus of the drinking water which can purify efficiently in a short time leaving the suitable mineral component in mineral containing raw water. is there.

In order to solve the above problems, the present invention contains SiO ₂ : 55 to 75% by weight, Al ₂ O ₃ : 7.5 to 20% by weight and Fe: 3 to 10% by weight, and Ca and Na. A step of bringing raw water into contact with a ceramic material formed with a ceramic composition containing 5 to 15% by weight of Mg and K in a total amount, and a suspension and dissolved gas from mineral water produced through this step A process for separating and removing with a filter is provided, and then a sterilization process for filtering with a filter made of porous ceramics is provided.

  According to the manufacturing method of the present invention configured as described above, raw water containing a predetermined mineral component is activated by, for example, efficiently contacting with a ceramic material, and then dissolved in a micro suspension or free chlorine. Gas is separated and removed by an inorganic filter made of activated carbon or zeolite, and organic substances such as trihalomethane, nitrite ions, dioxins, agricultural chemicals, and fungi are filtered and removed by a filter made of porous ceramics. Or, good quality drinking water can be obtained with the proper amount of sodium, calcium, magnesium and potassium remaining in the raw water remaining.

As the apparatus used in the manufacturing method described _above, SiO 2: 55 to 75 wt%, Al ₂ O _3: 7.5~20 wt% and Fe: Ca, Na and Mg with containing 3 to 10 wt% A ceramic material containing 5 to 15% by weight of K and K is accommodated in a water pipe, and one end of this water pipe is connected to the raw water supply path, and the raw water is in contact with the ceramic material at the other end. It is appropriate to use a drinking water production apparatus in which a gas adsorbing filter made of an inorganic material for filtering the generated mineral water is connected and then a porous ceramic disinfecting filter is connected. .

  When a ceramic material made of a predetermined ceramic composition is housed in a water pipe having one end connected to the supply path of raw water, the water after passing through this is the same as the invention described in Patent Document 1 above. It is considered that activation of surface activity, increase of hydroxide ions, downsizing of water cluster, that is, monomolecularization, etc. is caused by some physicochemical action due to the action of.

  A gas-adsorbing filter made of an inorganic material is connected to the end of the water pipe at the outlet side, so that dissolved gases such as dust and free chlorine are removed. Trihalomethane, nitrite ions, dioxins, pesticides, fungi, and the like are removed, but the mineral components still remain here.

  In order to ensure such an effect in the state of continuous supply of raw water, it is preferable to use the above-described drinking water production apparatus in which the length of the water pipe is 50 to 300 times the inner diameter.

  In addition, in order to reduce the size of the drinking water production apparatus, a partition wall having the same length as the water pipe is inserted into the water pipe and divided into three or more passages, and water passes through all the passages. Thus, it is preferable to provide a mineral water manufacturing apparatus in which the passages are connected to each other at both ends of the water pipe.

  More preferably, a small-diameter pipe is provided in the axial direction in the water pipe, and a spiral ridge (or fin) is formed around the small-diameter pipe so as to be in close contact with the inner peripheral surface of the water pipe, and between the water pipe and the small-diameter pipe. The spiral water passage formed in the container is filled with ceramic grains coated and fired with a glaze containing titanium phosphide, manganese oxide and magnetite as essential components, and one end of the spiral water passage is supplied with raw water The mineral water production apparatus according to claim 2 or 3, wherein the mineral water is collected from the small diameter pipe by connecting the other end and the small diameter pipe, and adopting a smaller water pipe. Can do.

Moreover, as a sterilization filter made of porous ceramics having an excellent sterilization effect as described above, SiO ₂ : 55 to 75% by weight, Al ₂ O ₃ : 7.5 to 20% by weight and Fe: 3 to 10% by weight A porous ceramic disinfecting filter formed of a ceramic composition containing 5 to 15% by weight of Ca, Na, Mg and K in a total amount and having a surface layer of SiO ₂ or Al ₂ O _{3 on} the surface. The adopted drinking water production apparatus is preferred.

  In the present invention, as described above, raw water is brought into contact with a ceramic material formed of a predetermined ceramic composition, and suspended and dissolved gases are separated and removed from the generated active water using an inorganic filter, Since a sterilization process for filtering with a filter made of porous ceramics is provided, the resistance of water when passing through the ceramic material is reduced, and the appropriate mineral components are left and impurities are removed for purification. There is an advantage that it becomes a manufacturing method of drinking water.

  In addition, a ceramic material formed of a predetermined ceramic composition is accommodated in a water pipe, and a dust removing filter and a gas adsorbing filter made of an inorganic material are connected to the water pipe, and then a porous ceramic-made disinfectant is used. Because it is a drinking water production device connected to a filter, suitable mineral components remain in the raw water, and organic substances such as trihalomethane, nitrite ions, dioxins, agricultural chemicals, and fungi are separated and removed. There is an advantage that it is an apparatus which can manufacture drinking water.

  In the drinking water manufacturing apparatus, a water pipe having a predetermined inner diameter and a predetermined pipe length can efficiently produce drinking water in addition to the above advantages.

  In addition, in addition to the above-mentioned advantages, water pipes and other equipment are extremely miniaturized in parts that divide the interior of the water pipe and provide a plurality of passages, and in drinking water production devices that have a spiral water passage in the water pipe. Therefore, there is an advantage that the entire manufacturing apparatus can be sufficiently downsized.

  In addition, when the porous ceramic sterilization filter is formed of a predetermined ceramic composition, the sterilization ability is stable and high, and therefore extremely safe drinking water can be produced.

A drinking water production apparatus and production method according to embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in FIGS. 1-4, the manufacturing apparatus of the drinking water of 1st Embodiment accommodates the ceramic material 1 in the inside of the water pipe 2, and the one end of the water pipe 2 is the supply path of the tap water which is raw water (arrow) ) 3 and a gas adsorbing filter 4 made of an inorganic material for filtering the water activated by passing through the ceramic material in contact with the other end of the ceramic material. The filter 5 for bacteria is connected and the filter 6 for dust removal is arrange | positioned in the important point. In addition, the code | symbol 7 in FIG. 1 has shown the adjustment valve which can be opened and closed suitably.

The ceramic material contains SiO ₂ : 55 to 75% by weight, Al ₂ O ₃ : 7.5 to 20% by weight and Fe: 3 to 10% by weight, and 5 to 5 in total of Ca, Na, Mg and K. It is formed of a ceramic composition containing 15% by weight. The ceramic material may be integrally formed integrally, but at least the surface only needs to be formed of such ceramics, so that glaze (supplement) is applied to the surface of various substrates that can withstand high temperatures. By firing, at least the surface can be formed of a predetermined ceramic.

As an example of such a ceramic composition, specifically, a composition mainly composed of granite can be adopted. The composition of granite is, for example, Na ₂ O: 1.0 to 2.5 wt%, MgO: 1.0 to 2.5 wt%, Al ₂ O ₃ : 13 to 20 wt%, SiO ₂ : 55 to 70 wt%. %, SO _3: 1.0 to 2.0 wt%, K ₂ O: 3~4 wt%, CaO: 2 to 4 wt%, TiO _2: 0.5 to 1.2 wt% and Fe ₂ O ₃ : 7 to 15% by weight.

  As shown in FIG. 2, in order to form in the granular ceramic material 1a, what was formed in the spherical particle about 3-12 mm in diameter, for example can be employ | adopted. Moreover, when using an inorganic foam and a sintered compact as a base material, it is preferable that it is a porous material which has a continuous air hole of about 20 micrometers-1 mm of air holes.

  Also, as shown in FIG. 3, a ceramic material for mineral extraction is coated as a glaze on the surface of a lattice provided inside the tube and fired to form a lattice-like ceramic material 1b or other honeycomb-like ceramic material. You can also. For example, the lattice spacing and the hole diameter are preferably 0.5 to 2 mm because of good contact efficiency with water.

  Further, as glaze, 100 parts by weight of fine mineral powder containing Na, Mg, Al, Si, S, K, Ca, Ti and Fe as main components and containing 95% by weight or more in terms of oxide, titanium phosphide (TiP) 1 to A ceramic composition containing 4 parts by weight, 3-5 parts by weight of manganese oxide and 1-2 parts by weight of magnetite can be employed.

  As shown in FIG. 1, the water pipe 2 containing the ceramic material is provided with a water-permeable partition component (not shown) such as a perforated plate at the end of the straight pipe to hold the ceramic material. If a plurality of such water pipes 2 are arranged and the pipe ends are connected by a U-shaped pipe joint 8 or the like, even a relatively small device can be formed to a required length and filtered over a required time. become.

  For example, the water pipe 2 can produce mineral water efficiently activated with a small amount of ceramics by adjusting the water passage speed to 10 cm / second or more, the contact time to 10 seconds or more, and the pressure to 0.2 MPa or more. it can. Moreover, it is preferable to form the pipe length of the whole water flow pipe 50 to 300 times the inner diameter of the pipe. If the tube length is less than 50 times the inner diameter, it is difficult to keep the water contact time at the above-mentioned pressure for 10 seconds or more. If the tube length is extended beyond 300 times, the water flow resistance increases and the production speed increases. Decreases, impairing practicality.

  The dust removal filter 6 is preferably provided at an intermediate portion or a downstream side of the contact passage process with the raw water ceramic material to which a plurality of water pipes 2 are connected. Such a dust removal filter 6 can employ, for example, a wire mesh or a fiber mesh filter having a mesh of about 20 to 50 μm, and other known filtration devices can be employed as long as other mineral fine particles and ceramic fine powder can be removed.

  As a specific example of the gas adsorbing filter 4, an inorganic porous material having fine pores such as activated carbon or zeolite that can adsorb and remove fine particles of 5 μm or less can be used as the filter material.

The sterilizing filter 5 is formed by forming a separation layer having a pore diameter that determines the filtration performance of the filter on the surface or intermediate layer of a base material made of a ceramic porous body, SiO ₂ : 55 to 75% by weight, The base material is made of a ceramic composition containing Al ₂ O ₃ : 7.5 to 20% by weight and Fe: 3 to 10% by weight and containing 5 to 15% by weight of Ca, Na, Mg and K in total. Preferably, the surface layer is formed of SiO ₂ or Al ₂ O ₃ and a polymer, microorganisms, and metal fine particles having a particle size of less than 0.1 μm can be separated.

  Porous ceramics are a mixture of inorganic oxide and resin powder that burns down at 300 ° C. or lower, and is baked at about 700 ° C. to evaporate and remove the resin. A porous material can be used.

In addition, it is more preferable that the porous ceramic sterilization filter employs a porous ceramic sterilization filter having a filtration surface fired with Al ₂ O ₃ fine powder having a particle size of 0.1 μm or less. preferable.

  The inside of the base material of such a porous ceramic sterilization filter is preferably a structure in which water does not stay easily because water through which microorganisms from which chlorine has been removed in the previous step easily propagates passes. In order to prevent stagnation, it is preferable to provide, for example, a water outlet that is opened and closed by a solenoid valve so that the stagnation water is appropriately discharged from the intermediate portion.

  The apparatus for producing drinking water containing minerals as shown in FIG. 1 configured by connecting such filters can be used by being incorporated into a drinking water vending machine.

  That is, as shown in FIG.1 and FIG.4, after the raw | natural water supplied from the waterworks passed through the 2nd water flow pipe 2 of the series 3 water flow pipe 2 connected by the U-shaped pipe joint 8. It is preferable that a part of the water is used as washing water for the container 9 such as a plastic bottle by bypass, and the produced drinking water is injected into the washed container 10.

  In the vending machine shown in FIG. 4, first, the container 9 is placed in the right washing port 11, a coin is inserted and the timer is operated, and the container 9 is placed in the left water receiving port 12 by washing with water for a specified time. However, only the required amount of drinking water containing minerals can be injected into the container 10 to be brought in and purchased.

  As a manufacturing apparatus of 2nd Embodiment, the structure same as the apparatus of 1st Embodiment can be employ | adopted except having used the water pipe 13 shown to FIGS.

  The water flow pipe 13 used in the second embodiment has nine partition walls 14, 15, 15, 16 that are approximately the same length as the pipe and are assembled and inserted into a lattice to form nine passages. , The ends of the two adjacent passages along the inner circumference of the pipe are connected to each other, and in this way, all the passages are connected in series, that is, the whole passage is made a round and then water passes from the passage in the center of the pipe. Is.

That is, as shown in FIGS. 6 and 7, the partition walls 14, 15, 15, and 16 are made of a plate-like component formed of a substantially rectangular synthetic resin plate, a ceramic plate, a metal plate, or the like. The lower end or the corners at both ends are cut into a square shape to form water outlets 17, 18, 19, and 20, and a narrow groove-shaped slit 21 is formed at the intersection of the combined plate-like parts, After assembling into the lattice shape shown in FIG. 6, the whole is inserted into the water pipe 2 and set.
Note that the number of partition walls can be changed as appropriate, and a plurality of passages can be used as necessary. The order of passing water can be changed as appropriate depending on the position of the water outlet.

  As shown in FIG. 8 (a), the water flow pipe 13 having both ends of the pipe closed by the lid-like part 13a is shown by arrows by partition walls 14, 15, 15, 16 (see FIG. 5) inserted therein. The water introduced from a is reversed in the order of arrows b, c, d, e, f, g, h, i, passes through all the passages, and is discharged from the passages of arrow j.

  As described above, since the inside of the water pipe 13 is filled with the granular ceramic material, the ceramic containing the predetermined component efficiently contacts the raw water and is sent to the next process.

  As shown in FIG. 8, the manufacturing apparatus of the mineral water of 3rd Embodiment provides the water flow pipe 13 which makes raw water contact the granular ceramic material 1a, and provides partition walls 14, 15, 15, and 16 (refer FIG. 5). Assembling and inserting, an inorganic center filter filled with a gas adsorbing filter 23 such as activated carbon that separates and removes suspended solids and dissolved gas in a passage in the center of the inside thereof, and a sterilization filter 24 that filters with porous ceramics. The central passage in the water conduit 13 is filled with a gas adsorbing filter 23 such as activated carbon, and the water conduit 13 is a tube having the same diameter via a joint 22. The manufacturing apparatus is downsized by connecting to a porous ceramic sterilization filter 24 housed in the container.

Moreover, as shown in FIG. 9, the manufacturing apparatus of the mineral containing drinking water of 4th Embodiment forms the partition in the water flow pipe part 25 in the continuous spiral shape. That is, this is provided with a small-diameter pipe 26 with a spiral hook in the water flow pipe portion 25, and a gas-adsorbing filter 23 such as activated carbon is loaded inside the small-diameter pipe 26, and the helical hook 27 is a small-diameter pipe 26. Is provided at a height close to the inner peripheral surface of the water pipe 25, and the spiral water passage formed between the water pipe 25 and the small diameter pipe 26 is filled with a large number of granular ceramic materials 1 a.
Then, a tap water supply path 28 is connected to the most upstream part of the spiral water passage, and the water outlet 29 is formed by cutting out the most downstream part of the spiral water passage and the small-diameter pipe 26. The water that has passed through the gas adsorbing filter 23 in the small-diameter pipe 26 passes through the porous ceramic sterilization filter 24 to obtain the drinking water 30.
According to these mineral-containing drinking water manufacturing equipment, the mineral components contained in the raw water remain, and the highly safe drinking water from which organic substances such as trihalomethane, nitrite ions, dioxins, agricultural chemicals and fungi are separated and removed. In addition, since the apparatus in which the water pipe and the like are miniaturized can be easily carried, it can be used not only for vending machines containing mineral water but also for home use and emergency.

Explanatory drawing which shows the manufacturing apparatus of the drinking water of 1st Embodiment. The perspective view of the ceramic material used for 1st Embodiment The perspective view of the ceramic material used for 1st Embodiment The perspective view of the vending machine which accommodated the drinking water manufacturing apparatus of 1st Embodiment. The perspective view which shows the form of the water flow pipe used for 2nd Embodiment. The perspective view which shows the partition wall used for 2nd Embodiment The front view which decomposes | disassembles and shows the partition wall used for 2nd Embodiment (A) Sectional drawing which shows the connection state of the water flow pipe used for 3rd Embodiment, and the filter for disinfection (b) Cross section of the water flow pipe used for 3rd Embodiment Sectional drawing which partially cuts and shows the connection state of the water flow pipe and sanitization filter which are used for 4th Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ceramic material 1a Granular ceramic material 1b Grid-shaped ceramic material 2, 13 Water flow pipe 3, 28 Tap water supply path 4, 23 Gas-adsorbing filter 5, 24 Disinfection filter 6, Dust removal filter 7, Adjustment valve 8 Pipe joint 9 DESCRIPTION OF SYMBOLS 10 Container 11 Washing port 12 Water receiving port 14,15,16 Partition wall 17, 18, 19, 20 Water outlet 21 Slit 22 Joint 25 Water pipe part 26 Small diameter pipe 27 Spiral trough 29 Water outlet 30 Drinking water

Claims (4)

SiO ₂ : 55 to 75 wt%, Al ₂ O ₃ : 7.5 to 20 wt% and Fe: 3 to 10 wt%, and 5 to 15 wt% of Ca, Na, Mg and K in total A ceramic material made of a ceramic composition is accommodated in a water pipe, and one end of the water pipe is connected to a supply path of raw water, and the other end is made of an inorganic material for filtering water that has passed through the ceramic material. Disinfection made of porous ceramics having a SiO ₂ or Al ₂ O ₃ separation layer connected to a gas adsorbing filter and formed with the ceramic composition and having pores with a pore size of 0.1 μm or less on the surface or intermediate layer A device for producing drinking water, which is provided by connecting an industrial filter.   The drinking water producing apparatus according to claim 1, wherein the water pipe is a water pipe formed with a pipe length 50 to 300 times the inner diameter.   Claims: A partition wall having the same length as the water pipe is inserted into the water pipe to divide the passage into a plurality of parts, and the passages are connected in series so that water passes through all the passages. The drinking water production apparatus according to 1 or 2.   A small-diameter pipe is provided in the axial direction in the water pipe, and a spiral ridge having a height close to the inner peripheral surface of the water pipe is formed around the small-diameter pipe, and a spiral formed between the water pipe and the small-diameter pipe. A ceramic channel made of the ceramic material for mineral extraction is filled in the water channel, and a raw water supply channel is connected to one end of the spiral water channel, and a small diameter pipe is connected to the other end of the spiral water channel. The apparatus for producing drinking water according to claim 1 or 2, wherein mineral water is collected from the small-diameter pipe.

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