JPH0651190B2 - Water purification method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for purifying water.

[Prior Art] Although water purification methods have been carried out by various methods for quite some time, ultraviolet rays are often used to generate ozone. It is useful for purification, but completely useless for actual home and factory use.

Also, there was no idea of using this type of water for disinfecting articles.

[Problems to be Solved by the Invention] The present invention has been developed in view of the above matters,
In particular, the first purpose is to provide a purification method adapted to buildings, and the ozone generator is not based on the electrolysis method,
Furthermore, natural stones and activated carbon are used, and ultraviolet rays are used as a bactericidal effect, which is suitable for purification of large amounts of water, and
One purpose is to provide a system that can be made into a compact device, and another purpose is to use water containing a large amount of these ozone for sterilizing articles, especially tableware. Is.

[Means for Solving the Problems] Next, the method of the present invention will be described.

The water stored in the water tank is sucked from the bottom of the water tank by a supply pump provided in the device, enters the device, and ozone generated from the ozone generator is mixed together with pressure,
Oxidize dissolved substances to lower the molecular weight, these high ozone content water is transferred to the adsorption tank, the offensive odor is adsorbed by activated carbon, and the minerals are eluted by natural stone, and then the ultraviolet sterilization advanced treatment tank. Enter, sterilize, and finally, depending on the flow rate, chlorine is injected, water is supplied, and if water is not supplied, water can be circulated between the water tank and this device. In the inside, the ozone generated from the ozone generator can be supplied to the step of disinfecting the water mixed with the pressure generated by the ozone generator, or it can be sterilized by entering the ultraviolet sterilization advanced treatment tank. The water can be supplied to the process of sterilizing the article by further injecting ozone into the water.

Further, preferably, the ozone-generated electrolyzed water of the ozone generator and the electrolyzing chamber cooling water are supplied from the advanced treatment tank, and these water are used as excess cooling water without being discharged to the outside after cooling, and are generated in this. Ozone is mixed, and this water can be injected in front of the inlet of the water supply circulation pump, and a check valve is installed to prevent backflow of cooling water to the electrolyzer, which is used when the water supply circulation pump is stopped. In response to the above, the ozone generator is stopped, and the generation of gas is stopped.
Further, in the advanced UV sterilization treatment tank, a quartz tube is provided outside the ultraviolet lamp with a gap of about 2 mm, and an outer jacket of an appropriate size is further provided outside the quartz tube. An upper lid and a lower lid having through holes that can be inserted are covered, O-rings are provided between the both lids and the quartz tube, and a coronal lid that presses both ends of the ultraviolet lamp is passed through each of the electric wires to be capped. The structure is such that this is simply bolted to the upper lid and the lower lid, and both O-rings are held down. Furthermore, the chlorine concentration is made uniform and the chlorine concentration sensor can adjust the concentration. The injection device has a large-diameter expansion chamber at the center, porous plates are installed at both ends of the expansion chamber, and chlorine is injected in front of the expansion chamber.

[Operation] The present invention uses the above-described method. When using the water, while the water is being used, the water first stored in the water tank is transferred from the pipe provided at the bottom of the water tank to the inside of the apparatus. Is sucked in by the supply circulation pump installed in the equipment, enters the equipment, and is mixed with ozone generated from the ozone generator together with the pressure to oxidize and lower the molecular weight of dissolved substances. The water with high ozone content is transferred to the adsorption tank, and the offensive odor is adsorbed by the activated carbon, and the minerals are eluted by natural stone, the residual chlorine of the odor is adsorbed and removed, and the growth of various bacteria is suppressed. Next, enter the advanced UV sterilization treatment tank,
By changing or degrading the molecular structure of the nuclear protein in the bacterial cells by ultraviolet rays, causing damage to the metabolism of the bacteria, losing its proliferative power, and increasing the irradiation energy, it causes cell destruction and kills the bacteria. It is then sterilized, and finally chlorine is injected according to the flow rate and it is used for water supply,
In addition, when water is not supplied, clean water is circulated between the water tank and this device so as to be reduced.

Further, by providing an electromagnetic valve in the pipes in these methods and electrically switching, the water generated by mixing the ozone generated from the ozone generator with the pressure can be supplied to the step of sterilizing the article. When the amount is insufficient, it can be supplied to the step of sterilizing articles by injecting ozone into the sterilized water by entering the advanced treatment tank for ultraviolet sterilization. When used to disinfect articles like this,
For example, when it is used for disinfection of tableware in a food factory, unlike the case of using a detergent, there is no problem of pollution, and an extremely large effect is enhanced.

Therefore, in the system of the present invention, water is always passing through the purifying device both when water is not supplied and when water is not supplied.
The effect of water purification is great.

Further, when it is installed in a food processing factory or the like as described above, it can be used very easily for sterilization of tableware, and a sufficient effect can be expected.

Needless to say, it is not limited to disinfection of tableware.

In addition, by using the ozone generator system as described above, it is possible to reduce waste of treated water, make full use of generated ozone, and use it safely. In the tank, the replacement of the ultraviolet lamp becomes extremely easy, and the sterilizing power is also improved. Furthermore, chlorine is sufficiently mixed in water by the structure of the chlorine injection part.

The above-mentioned water is preferably clean water, but is not limited to clean water as long as it can replace it.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

The water stored in the water tank 1 or the like is sucked from the bottom of the water tank 1 by the supply circulation pump 3 provided in the device 2,
Ozone generated from the ozone generator 4 by the electrolysis method is mixed with the pressure into the device 2 to oxidize the dissolved substances into low molecular weight compounds, and the ozone reduces the odors, trace organic substances, and chlorine compounds into the low molecular weight compounds. Odor or the like is easily adsorbed by the activated carbon, and then transferred to the adsorption tank 5,
The offensive odor and the like are adsorbed on the activated carbon therein, and a small amount of minerals are further eluted by natural stone to adsorb and remove residual chlorine in the odor, suppress the propagation of various fungi, and then enter the advanced ultraviolet sterilization treatment tank 6. At this time, it is preferable that water is allowed to flow in the cutting line direction into the tank 6 so as to flow in a spiral shape around the lamp so as to obtain sufficient irradiation. Further, the ultraviolet lamp of the advanced treatment tank 6 for ultraviolet sterilization uses the ultraviolet energy around the wavelength of 260 nm, which has the strongest sterilizing effect. Finally, the water sterilized in this way is injected with chlorine according to the flow rate by the chlorine injection device 8 having the control mechanism 7. The amount of chlorine in this case is the minimum required amount (0.1 to 0.3 ppm) of the Water Supply Act of the Ministry of Health and Welfare, and it is used for water supply. If water is not supplied, clean water will not flow between the water tank 1 and this device 2. It is designed to be circulated.

The ozone generator 4 is composed of an electrolysis tank 13 and a deionizer 14, and the ozone generation electrolyzed water and the electrolyzing chamber cooling water are supplied from the advanced treatment tank. It is used without being discharged into the water, and the generated ozone is mixed in and injected into the front of the inlet of the water supply circulation pump 3. The aspirated water is agitated and contacted with the ozone by the water supply circulation pump 3 to oxidize dissolved substances, The structure is such that it can be molecularized, and a check valve 15 for water to the electrolyzer 13 is provided, and when the feed water circulation pump 3 is stopped, the ozone generator 4 is stopped correspondingly to stop the gas generation. It is preferable to have a constitution. Further, the advanced UV sterilization treatment tank 6 has an ultraviolet lamp 16
Provide a quartz tube 17 with a gap of about 2 mm on the outside of the
Further, an outer jacket 17 of an appropriate size is installed on the outer side of the outer jacket 17, and an upper lid 18 and a lower lid 19 each having a through hole through which the quartz tube 17 can be inserted are covered at the upper and lower ends thereof to cover the both lids 18, 19 and the quartz. An O-ring 20 is provided between the tube 17 and a crown-shaped lid 21 and 22 for pressing the both ends of the ultraviolet lamp 16 through the electric wires respectively, and the upper lid 18 and the lower lid 19 are bolted. Stop and both O
The ring 20 can be held down.

In order to improve the mixing of chlorine, the chlorine injection device 8 described above
Increase the diameter of the part located after the chlorine injection part of the water pipe,
It is preferable to provide perforated plates 24 and 25 at the front and rear of the expansion chamber 23, and to design a turbulent water flow in the central part so that chlorine can be smoothly mixed. .

With this configuration, the chlorine concentration sensor can be installed immediately after the expansion chamber 23, so that the chlorine concentration can be adjusted automatically and the time delay can be reduced.

Further, a solenoid valve 12 ... Is provided on an appropriate pipe, and the ozone generated from the ozone generator 4 by the electrolysis method is further branched from the pipe mixed with the pressure so that it can be used for disinfection of articles. Further, when the sterilization treatment of this water is insufficient, the ultraviolet sterilization advanced treatment tank 6 is entered and branched pipes are provided from the sterilized pipes so that ozone can be inhaled into this water. It is a thing. In this case, tableware or the like is preferable as the article, and this device is preferably installed in a food processing factory or the like.

In the above configuration, it is preferable that when the pump operation is stopped, the supply is automatically performed by bypass.

In the drawing, 9 is a chlorine injection concentration monitoring mechanism,
Reference numeral 10 is an arrow showing the method of water flow when water is not supplied, and 11 is an arrow showing the direction of water flow at the time of water supply.

In addition, the water supply circulation pump 3 and the chlorine injection concentration monitoring mechanism 9
Has a monitoring mechanism using a telephone line, and this device can always be monitored 24 hours a day.

In this case, the water tank 1 refers to a water tank that is already installed and a water tank that is integrally combined with the device, and the combination of the water tank that is already installed and this device. Alternatively, when a new building is constructed, various methods such as a method of integrally combining the present apparatus and a water tank are conceivable.

[Advantages of the Invention] Since the present invention has the above-described system, it is possible to easily supply a large amount of ozone to purify a large amount of water, and the water is always supplied to the inside of the purifier even when water is not supplied. Since it passes through, the effect of water purification is great,
Furthermore, it can be used for disinfecting articles, especially when installed in food processing factories, it can be used very easily and safely for sterilizing tableware, and unlike using detergent, there is no problem of pollution, extremely A great effect can be expected, and by using the ozone generator system as described above, it is possible to reduce waste of treated water and to completely use the generated ozone, and to use it safely. In addition to being able to do it, the advanced UV sterilization treatment tank makes it extremely easy to replace the ultraviolet lamp and maintain and manage it, and also improves the sterilization power.In addition, chlorine is sufficiently mixed in water by the configuration of the chlorine injection part. is there.

[Brief description of drawings]

FIG. 1 is a flow chart showing the principle of the present invention, FIG. 2 is a piping diagram of a main part relating to an ozone generator which is one of the main parts of the present invention, and FIG. Part 4 is cut off in the front view of the UV sterilization advanced treatment tank, which is one of the parts
The figure shows an enlarged cross-sectional view of the main part of the advanced UV sterilization advanced treatment tank, No. 5
The figure is an enlarged view of the chlorine mixing section, which is one of the main components of the present invention. 1 ... Water tank 2 ... Device 3 ... Supply circulation pump 4 ... Ozone generator 5 ... Adsorption tank 6 ... UV sterilization advanced treatment tank 8 ... Chlorine injection device 13 ... Electrolysis tank 16 ... UV lamp 17 ...... Quartz tube 18 ...... Top lid 19 ...... Bottom lid 20 ...... O-ring 21,22 ...... Coronal lid 23 ...... Expansion chamber 24,25 ...... Perforated plate.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C02F 1/76 A 9045-4D

Claims (4)

[Claims] 1. The water stored in a water tank or the like is sucked from the bottom of the water tank by a supply pump provided in the apparatus,
Enter the equipment, inject ozone generated from the ozone generator into the water supply circulation pump, mix with stirring contact, pressure,
Oxidize dissolved substances, lower the molecular weight, this high ozone content water is transferred to the adsorption tank, the offensive odor is adsorbed by activated carbon, minerals are further eluted by natural stone, then enter the UV sterilization advanced treatment tank, It is sterilized, and finally chlorine is injected according to the flow rate of the aquarium, it is used for water supply, or if water is not supplied, water can be circulated between the aquarium and this device. In these methods, by electrically switching, water containing ozone generated from the ozone generator together with pressure can be supplied to the step of sterilizing the article, or the ultraviolet sterilization advanced treatment tank can be used. enter,
A method for purifying water, characterized in that ozone can be further injected into sterilized water to supply water to the step of disinfecting articles. 2. The ozone-generated electrolyzed water and the electrolyzing chamber cooling water of the ozone generator according to claim 1 are supplied from highly treated water, and these water are used as excess cooling water after cooling without being discharged to the outside. , The generated ozone is mixed in and injected before the inlet of the water supply circulation pump, and the suctioned water is agitated and brought into contact with the ozone by the pump to oxidize dissolved substances and lower the molecular weight of dissolved substances. A non-return valve for preventing backflow of the cooling water is provided, and when the water supply circulation pump is stopped, the ozone generator is stopped correspondingly to stop the gas generation and the required ozone amount can be electrically adjusted. The water purification method characterized by 3. The advanced ultraviolet sterilization treatment tank according to claim 1, wherein a quartz tube is provided on the outside of the ultraviolet lamp with a gap of about 2 mm, and a cloak of an appropriate size is provided on the outside thereof. An upper lid and a lower lid having through holes through which the quartz tube can be inserted are covered at upper and lower ends, O-rings are provided between the both lids and the quartz tube, and a coronal lid for pressing both ends of the ultraviolet lamp is provided. A method for purifying water, characterized in that an electric wire is pierced and capped, the upper lid and the lower lid are bolted together, and both O-rings are held down. 4. The chlorine injecting device for injecting chlorine according to claim 1, wherein the central part has a large-diameter expansion chamber part, and porous plates are installed at both ends of the expansion chamber part, and chlorine injection is performed in this expansion chamber. A method for purifying water, characterized in that the chlorine concentration can be made uniform by performing it in front of the section and the concentration can be adjusted by a chlorine concentration sensor.