JP2005313137A - Drinking water supply system for both of regular use and emergency use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drinking water supply system for both of regular use and emergency use. <P>SOLUTION: Drinking raw water supplied through at least one route is sent directly or through a storage tank to this drinking water supply system for both of regular use and emergency use and used independently as drinking water or mixable service water is mixed with drinkable raw water and the mixed water is sent to this drinking water supply system and used as drinking water. When drinking raw water is supplied, a magnet or the like is arranged in the water stored in the storage tank or a treated water tank or the water of a water area derived from the storage tank and the treated water tank to irradiate the water with lines of magnetic force in an influenced range so that the sterilizing efficacy of a chlorine molecular species containing an oxygen atom as a constituent element can be promoted and the adhesion of scale can be prevented. In order to enhance the sterilizing effect, in addition to the treatment using lines of magnetic force, a catalytic member containing titanium dioxide is arranged in the storage tank etc. at the same time so that ultraviolet rays are excited and the sterilizing efficacy of the chlorine molecular species containing the oxygen atom as the constituent element is promoted. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to a drinking water supply system that can be effectively utilized at any time or in an emergency.
For example, assuming the avoidance of troubles such as water outages caused by the breakage of distribution pipes at the time of a disaster, when securing the lifeline of residents' lives in an emergency, the dual water supply system based on the water quality management of its own water source is always maintained effectively. It is something to use.

Conventionally, in facilities that are used only in emergencies, such as fire prevention water, there is no emphasis on maintaining the quality of the drinking water from the beginning, and it usually exists in the state of water in a dead state. Purification of water quality is difficult to supply as raw water.
As such measures, there has been reported an invention that always maintains the water quality of stored drinking water such as large apartment houses that are obliged to store a large amount of fire prevention water as raw water for fresh drinking water. Yes. (For example, see Patent Document 1)
In addition, a report (refer to Patent Document 2) that stores rainwater and the like in a storage tank and removes dirt components and the like and uses it as water for daily life in an emergency (see Patent Document 2), and an example of a combined tank for drinking water and fire prevention water (Patent Document 3) Others are introduced.

In the inventions reported above, there is a possibility that the quality of drinking water cannot be ensured due to an unforeseen event that occurs during an unusual disaster. For example, destruction of a storage tank due to an earthquake, damage to a casing constituting the water tank, or destruction of water quality due to contamination of sewage under these influences.
In addition, in general, the reserve storage water for disasters does not necessarily have a sufficiently large capacity, and it is necessary to give due consideration to the shortage and it is desirable to use alternative supplemental facilities as much as possible. In some cases, it may not be possible to respond to the situation, such as being unable to function due to a situation such as being out of power and a power outage.

        JP 2004-44351 A         Japanese Patent Laid-Open No. 7-132299         JP-A-9-30594

When placed at the administrative authority, as a countermeasure in case of a disaster, consideration is given to securing drinking water and the arrangement of fire prevention water, and measures are being taken one after another.
On the other hand, in the private sector, water supply countermeasures in the event of a disaster by securing its own water source are being developed as an urgent task, while aiming to make drinking water and maintain water quality based on so-called advanced groundwater treatment.
In particular, there is a strong demand for hospitals and the like to ensure water supply as a lifeline that is indispensable for daily life, including relief and protection not only for in-hospital patients but also for disaster victims.

From this point of view, it is considered desirable to strengthen and secure the lifeline as a public and private sector by responding so that disaster water supply measures can be implemented even in the private sector.
In addition, there is a need for the development of familiar water sources in preparation for disasters, the securing of water supply systems, and the appropriate use of groundwater in response to changes in nature and social conditions.
In order to achieve these objectives, the present inventors are able to achieve this by considering the utilization of unused water, which has not been used in the past, with the aim of realizing a water supply system that can be used at all times and diverted immediately in an emergency. It was.
As a result, it has been found that it is useful for water quality conservation measures for groundwater that lead to the maintenance of purification functions in water sources, forests, and farmland waters aimed at reducing water pollution loads.

  Under the circumstances described above, as a result of promoting the action of deepening cooperation in cooperation with the government agencies through the creation of a community to deepen the relationship with water, the revolution of consciousness through participation of residents, or the efforts of the whole community, the results of the present invention Evolved into formation.

  That is, the gist of the present invention is that drinking raw water supplied from at least one route is used as drinking water either directly or via a storage tank, or drinking water that can be mixed with this is provided. In the system, at the time of raw water procurement, magnets are placed on the water stored in the raw water storage tank or the treated water tank, or the water area derived from these within the range that can be affected, and oxygen atoms are formed as constituent elements. In addition to the sterilization effect of the chlorine molecular species, and the ability to prevent the adhesion of scales, it is in a normal and emergency drinking water supply system.

In order to further enhance the bactericidal effect, in addition to the above-mentioned magnetic field line treatment, a catalytic effect material containing titanium dioxide is placed in a water tank etc. and excited with ultraviolet rays to support the bactericidal efficacy of chlorine molecular species containing oxygen atoms as constituent elements. It is a normal and emergency drinking water supply system.
Here, when the raw water is procured, for example, when groundwater is pumped, magnets are installed on the discharge side of the pump and irradiated with magnetic lines of force, so that water quality can be improved and bacteria can be prevented from breeding.
Moreover, when circulating the stored water of a raw | natural water storage tank or a treated water tank, in order to irradiate a magnetic field to moving water, it arrange | positions as much as possible by arranging magnets. Although this means alone cannot provide a complete sterilizing effect, it exhibits a subsidizing effect and further exhibits an ability to prevent scale adhesion to the inner wall of the tube.

In the present invention, as a method for further enhancing the bactericidal effect, the bactericidal effect can be enhanced by using an ultraviolet ray and a titanium dioxide catalyst having a catalytic effect.
Sterilization is an indispensable element for making drinking water, and even when sufficient measures such as addition of a bactericidal agent can be easily performed in normal times, the emergence of a state in which no power is supplied in an emergency is easily conceived. Some drastic response is necessary.
Therefore, in the present invention, hypochlorous acid based on self-generated electricity that can be used even when commercial power is stopped, solar power that is effective even when power is not available, and electrolysis of salt water by stored power Or sterilizing means by ultraviolet irradiation.

In the present invention, a chlorine molecular species having an oxygen atom as a constituent element is a kind that generates a reactive group having a bactericidal effect such as hypochlorous acid, chlorine dioxide, or chloric acid in water, such as chlorine gas, It refers to liquid sodium hypochlorite, solid calcium hypochlorite, and the like.
In the present invention, a known means can be used to arrange a catalytic effect material for imparting a photocatalytic function including titanium dioxide. For example, it is possible to adopt a method in which a coating film containing titanium dioxide powder is formed on the structural member and then baked at a high temperature or the member is subjected to surface treatment and impregnated with a titanium oxide dispersion and then thermally fixed. .

As an excitation energy source for titanium oxides which are photocatalysts, an ultraviolet irradiation source such as sunlight or an ultraviolet lamp may be used. However, as an easy method, it is a useful means in that it can be easily incorporated by, for example, ultraviolet irradiation.
Here, various methods can be adopted as the ultraviolet ray source. In many cases, ultraviolet germicidal lamps are mainly used, and fluorescent lamps can be used as a weak light source.
On the other hand, natural ultraviolet light can be guided by selecting a light guide carrier made of a material having excellent ultraviolet transmittance such as plastic fiber or glass fiber, or by utilizing a light reflection method such as a mirror. These techniques are generally used as a light collecting technique in the construction field.
By using light collection technology, it is possible to always collect light for a certain period of time while automatically tracking the sun's trajectory, and if necessary, cut off infrared rays through the function of a filter in the light collector to eliminate excess heat. It is also possible.

In the present invention, at the time of raw water procurement, in order to irradiate the magnetic field lines within the range that can be affected by arranging magnets on the water stored in the raw water storage tank or the treated water tank, or in the water area derived from these, known means are used. use.
For example, by passing these irrigation water through a water channel formed by arranging a large number of permanent magnets and moving them in a multipolar magnetic field, the water is orthogonally crossed between the magnetic fields generated between the N and S poles. When it moves, vibrational energy is generated by the dipole moment of each water molecule, and it further changes to electrical energy. Such energy generates physical vibrations in the water molecules, which can aid in the decomposition of the scale and the bactericidal action of the chlorine molecular species in the water.
If a strong magnetic field is constructed when pumping up groundwater using a submersible pump, such as when procuring raw water, it is possible to prevent the scale from adhering to the piping, and as a further effect, it affects the moving water flow and water molecules. Can reduce the cluster of water molecules.
When the stored water is circulated by the pump, by irradiating the water flow with a strong magnetic field, the water molecules can be vibrated in the same manner as described above to change the structure of the water molecules.

The magnets used in the present invention can be any of known permanent magnets or electromagnets. In general, a permanent magnet is easily adopted, and for example, a ferrite magnet is used.
At this time, although it can be used as it is, it is preferably used in a form integrated with another non-magnetic material.
Since it is used in an underwater or high-humidity environment, ceramic or ferrite magnets, various types of magnets that are hermetically packaged with a thin stainless steel plate or alloy-based magnets are used for rust prevention. The magnetic field strength of the magnet needs to be at least about 1500 gauss, but preferably 5000 gauss or more if possible.

A feature of the present invention is that a drinking water supply facility that is always in operation can be used as a water supply system that can be diverted immediately even in an emergency, and water storage during running is intended to maintain the quality of the drinking water level assuming an emergency. It is possible to correspond.
Furthermore, as another feature, in the present invention, by applying a strong magnetic field or ultraviolet ray with an oxidation catalyst to running water, the water quality is fundamentally changed to cause a function change, thereby preventing the scale. Can subsidize bactericidal effect.
Conventionally, although emergency facilities for public facilities corresponding to emergency water storage have been prepared, there are limits to the amount of water and maintenance of water quality, and in order to supplement this, both regular and emergency beverages according to the present invention are used. The water supply system fulfills a useful mission as a private facility.

As described in detail above, the present invention is a facility that can also be used as water storage in an emergency, and is a facility that continues normal operation at all times. It is a water supply system that can be used immediately.
In addition to running water, running water is irradiated with a strong magnetic field or ultraviolet rays with an oxidation catalyst to cause basic fluctuations in water quality and functional changes, thereby preventing scale inside the pipe. The water quality is maintained at the drinking water level so that sufficient water quality can be maintained even in an emergency while supporting the effects and sterilizing effects.
As a result, it is convinced that disaster water supply measures can be implemented even at the private level, and can make a great contribution to strengthening the securing of lifelines as a public-private unity.
As described above, the industrial effect of the present invention is remarkable.

  Hereinafter, an embodiment of the present invention will be specifically described with reference to FIG.

FIG. 1 shows the Example of this invention and represents the whole schematic diagram of the drinking water supply system which concerns on this invention.
In Fig. 1, when pumping groundwater from a well (A) through a well pump (P1), a magnetic field irradiator capable of forming a magnetic water current region equivalent to about 8000 Gauss by wrapping ferrite magnets in a thin stainless steel plate and arranging them in layers. Water can be introduced to the raw water tank (B) (with precipitation function: the same meaning hereinafter) through the well water pipe (1) passing through (a).
In the raw water tank (B), the titanium dioxide coating impeller (b) located on the surface of the water and arranged to rotate by the inflowing water falling from the well pipe ((1)) and the sun rays are introduced from the outside. Sun rays are guided into the raw water tank (B) through the light collector (5) through the condenser (d). This light ray is irradiated as ultraviolet rays to the titanium dioxide coating impeller (b) via the ultraviolet ray emitting end (c).

After being filtered from the raw water tank (B) through the raw water pump (P2) through the raw water pipe ((2)) to the sand filter (C), the membrane filtration device (D) is used to perform the microfiltration process, and the treated water pipe It is transferred to the treated water tank (E) via (3).
In the treated water tank (E), a titanium dioxide coating impeller (b) located on the surface of the water as in the raw water tank (B) and arranged to rotate by the inflowing water falling from the pipe (3). The sunlight is guided into the treated water tank (E) through the light beam carrier (5) through the condenser (d) for introducing the sunlight from the outside. This light ray is irradiated as ultraviolet rays to the titanium dioxide coating impeller (b) via the ultraviolet ray emitting end (c).

Water is distributed as drinking water from the treated water tank (E) through the treated water pump (P3) through the feed water supply pipe (4). In addition, the treated water circulation pump (P4) is operated, and ferrite magnets are wrapped in a stainless steel sheet on the way and laminated, and a magnetic field irradiator (a) capable of forming a magnetic water flow area equivalent to about 8000 Gauss is arranged in the circulation pipe. It can circulate to the treated water tank (E).
A sodium hypochlorite aqueous solution (12%) supplied from the chemical tank (F) can be supplied to the raw water tank (B) and the treated water tank (E) through the chemical injection pipe (6), respectively.
Hereinafter, the effect of the present invention will be described by way of examples with the above configuration.

Excavation of 120m as well (A), which is the water source, and confirming the amount of water through staged pumping test, continuous pumping test, and recovery test, and then substituting by disinfection as a test item of the water quality standard of the Waterworks Act as the specified water quality analysis Based on the test results of 40 items excluding the product, the type and processing capacity (8 tons / H) of the processing plant were determined.
As an item of water quality, the hardness was 148 mg / l, which was considerably higher than the hardness of 50 mg / l compared to that of ordinary clean water, and there was concern about scale adhesion to pipes and the like.

Using groundwater as a well pump (P1), 120 liters / minute X 2.2 kW × 68 m, a predetermined amount of water 110 liters / minute is pumped, and stored in a raw water tank (B) 1 m 3 through a well pipe (▲ 1 ▼) 25 mm. .
At that time, considering the prevention of scale formation due to the hardness of raw water on the well water pipe (1) 25 mm, a magnetic field irradiator (a) that has a spiral effect in the middle of the well water pipe and can carry out a magnetic field strength of about 12,000 gauss The raw water was allowed to pass through the irradiator to exert rust removal and rust prevention by the magnetic field effect. In addition, the germs in the groundwater were first sterilized with a strong magnetic field while passing through the well pipe ((1)) and then introduced into the raw water tank.

In the raw water tank (B), 12% sodium hypochlorite aqueous solution is stored in 300 liters as a chemical tank (F), and is normally injected through a chemical injection pipe (6) 12 mm. Advance and work functionally.
As a means for preventing the sterilization effect from decaying in case of sodium hypochlorite depletion, such as at the time of a disaster, in the present invention, an impeller (b) provided with a catalytic effect by coating a titanium dioxide film is provided. It is placed at the contact surface position between the water surface and air, rotated by the water flow from the well pipe (▲ 1 ▼), and irradiated with ultraviolet rays guided separately from outside to add bactericidal and deodorizing effects. Succeeded to play a part of the alternative function.
In particular, groundwater taken from deep wells has a low oxygen content and contains hydrogen sulfide and emits a bad odor. Therefore, it can be decomposed and deodorized with the catalytic effect material coated on the impeller (b) and ultraviolet rays.

  In addition, in order to stably operate the membrane filtration device as the role of the raw water tank, the purpose is to reduce hardness (calcium, magnesium, etc.) including general bacteria mixed in raw water (groundwater). Although the hardness of the raw water was 148 mg / liter at the beginning, the hardness in the raw water tank could be reduced to 88.4 mg / liter, confirming the effect of magnetic field irradiation. However, in order to achieve the same level of hardness as tap water, the system of the present application was required to be achieved in the treated water tank.

Utilizing the high probability of oxidative decomposition to active oxygen due to the effect of ultraviolet irradiation from sunlight on titanium oxide coated on impeller as subsidy for photocatalyst and sodium hypochlorite. In addition, the water surface was stirred with an impeller to promote contact with air and to increase the deodorizing / sterilizing effect. Since general bacteria are also contained in the atmosphere, even if sodium hypochlorite is depleted, the effect of the photocatalyst is taken as a safety measure, and it is as effective as sodium hypochlorite of 0.1 mg / liter or more. Demonstrated.
In addition, the catalytic effect material is an impeller type with a disk-shaped water blade, and since it can be rotated by running water, it can exert an efficient effect, and the stirring effect on the water surface evaporates general organic chemicals such as trichlorethylene into the air. Indicates function.

The ultraviolet irradiation acts on the impeller (b) having a coated catalytic effect material installed on the surface of the water, and sunlight was used without an ultraviolet lamp.
For this purpose, a commercially available concentrator system is adopted, and sunlight is efficiently collected by a concentrator having a light receiving area of 425 square centimeters, and then the ultraviolet ray exit end (c) through a light carrier (5). The raw water tank was irradiated with a force corresponding to about 1/2 of about 8200 LX.
The catalytic effect material was able to exert a sterilizing effect by inducing strong oxidizing power by ultraviolet excitation. On the other hand, the concentrator for outdoor installation always focused sunlight with the maximum efficiency, modified some functions using stable daylighting technology, cut infrared rays, and irradiated only with ultraviolet rays.
As a light carrier, high-purity quartz glass fiber was used to transmit only ultraviolet rays, and ultraviolet rays were emitted from the emission end.

ン効果を発揮させ、膜濾過装置（Ｄ）８トン／Ｈにて菌類を除去し、処理水管（▲３▼）３２ｍｍを経て、処理水槽（Ｅ）３ｍ３へ移送した。
処理水槽が建築基準法上受水槽扱いになるため、最終的な飲料水としての完璧なる水質管理を要求され、災害時に滞りなく飲料水として活用出来ることを確認した。As the purpose of the filter (C), it has a function of reducing the load of the membrane filtration device by removing so-called gold gas such as iron and manganese contained in the groundwater. Regarding the capacity, the space velocity (SV) was 10 and the linear velocity (LV) was 12 m / hour.
As raw water pump (P2), it is pumped by 8.0 tons / min x 25m x 1.5kw

The fungus was removed with a membrane filtration device (D) 8 ton / H, and transferred to a treated water tank (E) 3 m3 through a treated water pipe (3) 32 mm.
Since the treated water tank is treated as a water receiving tank in accordance with the Building Standards Act, it was requested that perfect water quality management as final drinking water was required, and it was confirmed that it could be used as drinking water without a delay in the event of a disaster.

The treated water tank is a water storage tank that has been subjected to advanced groundwater treatment and finally secured the quality of drinking water, and the maintenance of water quality will continue to be pursued. Therefore, it is necessary to adjust the hardness to the level of general tap water, and as a result of performing the water flow treatment by the functional treatment according to the present invention, the hardness can finally be set to 4.2 mg / liter.
In addition, depending on the quality of groundwater, it is possible to prevent adverse effects caused by water quality hardness that normally occurs, such as adhesion of scales inside pipes, red rust in cans such as components, and reduced heat efficiency of heat exchangers. Was made.
As a water quality securing system in the treated water tank (E), it is possible to secure the same water quality in both normal times and disasters by using the magnetic field irradiator (a), the impeller (b), and the ultraviolet ray emitting end (c). I was able to achieve it.

The treated water tank (E) originally ensures the stability of the residual salt concentration through the injection of sodium hypochlorite. The treated water in the treated water tank is treated with a treated water circulation pump (P4) 50 liters / minute × 5 m × 0. 17 kW is always in a stirring state.
When the magnetic field irradiator (a) was installed in the piping system of the treated water circulation pump (P4) to enhance the sterilization effect of sodium hypochlorite, the secondary sterilization phenomenon could be confirmed.
The treated water circulation pump (P4) was operated continuously for 24 hours, and the water quality was stabilized through monitoring the residual salt concentration. Next, in order to obtain the photocatalytic effect of titanium dioxide, a structure supplemented with sodium hypochlorite at the time of disaster was made in the same manner as adopted in the raw water tank.
In addition, the ultraviolet irradiation capability was set to a dose of 1/2 of 8200LX as in the raw water tank.
The water quality was purified and stored in a treated water tank in accordance with the Water Supply Law, and supplied to the main water receiving tank with a treated water pump (P3) of 8.0 m3 × 22 m × 1.5 kW.

As one feature of the present invention, it has been achieved that it can be effectively used as irrigation water for building equipment by eliminating the adverse effects due to hardness such as red rust of scales in pipes, reduction of thermal efficiency, and the like.
In other words, groundwater is sustainable as a water resource because it does not require large-scale storage, intake and water supply facilities, and has excellent characteristics in terms of both cost and environment. In the event of a disaster, it can handle emergency water supply as a lifeline.
A further feature of the present invention is that it is based on the use of groundwater as a self-water source, and it is less likely to be damaged during a disaster, particularly an earthquake disaster, and an extremely stable amount of water can be secured.
Also, groundwater has little change in water volume due to climate change, has high stability during droughts, and is different from a linear pumping system that is a surface-existing and linear pumping system. Therefore, it was confirmed that it is effective as an emergency water source including at the time of disaster.

If there is an emergency power supply at the time of a disaster, the lifeline can be secured by operating the plant body. Even when there is no emergency power supply, the commercial power supply is usually restored in 3 to 4 days. Therefore, as long as the plant can be operated, the function as a lifeline can be maintained.
Considering an extraordinary phenomenon as a disaster, the sterilizer using magnetic force and sunlight is a stable measure that utilizes natural energy, and it can be confident that it is an epoch-making measure for ensuring water quality, even in situations different from normal operation. In such a system, it is easy to use a water supply system using a self-water source, and it will lead to the effective securing of the lifeline from the prospect that restoration by water cut of public water supply will take about 3 months.

FIG. 1 shows the Example of this invention and represents the whole schematic diagram of the drinking water supply system which concerns on this invention.

Explanation of symbols

A Well B Raw water tank C Sand filter D Membrane filtration apparatus E Treated water tank F Chemical tank P1 Well pump P2 Raw water pump P3 Treated water pump P4 Treated water circulation pump a Magnetic field irradiator b Impeller c Ultraviolet exit end d Condenser (1) Well water pipe (2) Raw water water supply pipe (3) Treated water pipe (4) Supply water supply pipe (5) Beam carrier (6) Chemical injection pipe

Claims (5)

In the system where raw drinking water supplied from at least one route is used as drinking water either directly or via a storage tank, or drinking water that can be mixed with this is distributed, raw water is stored at the time of raw water procurement. A magnetic field is applied to the water stored in the tank or the treated water tank or the water area derived from these within the range that can be affected by magnets, and the sterilization effect of chlorine molecular species having oxygen atoms as constituent elements is subsidized. And a drinking water supply system for both normal and emergency use, characterized by having a scale adhesion prevention capability. In the system where raw drinking water supplied from at least one kind of route is used as drinking water either directly or via a storage tank, or drinking water that can be combined with this is distributed, raw water is stored at the time of raw water procurement. Irradiate the magnetic field lines within the range that can be affected by arranging magnets to the water stored in the tank or the treated water tank, or the water area derived from these, and at the same time arrange a catalytic effect material containing titanium dioxide to excite ultraviolet rays, 2. The normal and emergency drinking water supply system according to claim 1, wherein the system supports a sterilizing effect of chlorine molecular species having oxygen atoms as constituent elements and exhibits an ability to prevent scale adhesion. 3. A normal and emergency drinking water supply system according to claim 1, wherein magnets are installed on the discharge side of the pump when the raw water is procured when pumping groundwater. 4. The normal and emergency use according to claim 1, wherein when circulating the stored water in the raw water storage tank or the treated water tank, magnetic lines are irradiated within a range in which moving water can be affected by arranging magnets. Drinking water supply system. 5. The normal and emergency drinking water supply system according to claim 1, wherein chlorine gas or sodium hypochlorite is used as the chlorine molecular species having the oxygen atom as a constituent element.

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