JP2990574B2 - Method for controlling redox potential and dissolved gas of water having sterilization means - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention changes the oxidation-reduction potential of water and removes organic substances, inorganic substances and bacteria contained in water in order to obtain water having properties suitable for use in various industries. It relates to a method of sterilization.

[0002]

2. Description of the Related Art It is known that water is subjected to oxidation and reduction to change its potential, and the water is used in various industries and the like, and apparatuses for this purpose have been put to practical use.

[0003] The water obtained by this apparatus is useful for maintaining freshness of crops, cultivation without pesticides and improving cultivation efficiency in agriculture, and maintaining freshness of fish and shellfish in the fishing industry.
It can be used effectively for non-chemical cultivation fisheries.

[0004] In the livestock industry, it is also effective in raising livestock without chemicals, improving the environment to prevent livestock pollution, and maintaining the freshness of livestock products. In the food industry, it is also useful for maintaining the freshness by using oxygen-free water.

[0005] Further, in the water purification industry, the treatment performance of drinking water and sewage is improved. In the brewing industry, such as alcoholic beverages, improve quality and productivity, and in the fields of medicine and pharmacy, improve drug efficacy and preventive medicine.
In industry, it is effective in preventing oxidation by converting industrial water to oxygen-free water. In addition, it is widely used for various environmental improvements.

[0006] If the treated water whose oxidation-reduction potential has been changed as described above has also been subjected to a disinfection treatment for removing organic substances, inorganic substances and bacteria, the application will be further expanded.

It is also known that the oxidation-reduction potential of water is changed by blowing air into water or irradiating water with sound waves.

It is also known that the above-mentioned change in the oxidation-reduction potential is caused by injecting N ₂ gas by an aeration method. FIG. 4 shows the dissolved oxygen (D
O) shows the change in the amount. The horizontal axis is time (unit is 1 hour), and the vertical axis is dissolved oxygen (DO) amount, and the unit is ppm. FIG. 5 shows the change in the oxidation-reduction potential in that case, where the horizontal axis represents time (unit is 1 hour), and the vertical axis represents the oxidation-reduction potential (unit is × 100 mV). In both figures, N _{2 at} point A
The injection of gas is started, the injection is stopped at point B, and then the container is left in an open state. As seen in both figures, a change in the change and the redox potential in the dissolved oxygen amount when injected with aeration method with N ₂ gas into the water in the open state occurs, but the variation is very insignificant It is.

Next, in addition to injecting N ₂ gas into the water by the aeration method as described above, air injected into the water in the water tank, which was previously filed by the same applicant as the present application, was used. Or an air amount control device capable of controlling the injection amount of oxygen, and a sound wave generation amount control device capable of controlling the amount of sound waves irradiated on the water, the injection of the air or oxygen and the irradiation of the sound waves FIGS. 6 and 7 show the results in the case where the amounts of both are controlled and adjusted by the two control devices, and the oxidation-reduction potential of water is changed by using the oxidation-reduction potential control device for water, which performs both of them. It is shown in

In both figures, the injection of the N ₂ gas is started at the point A, the injection is stopped at the point B, and then the container is left in an open state. In FIG. 6, the horizontal axis represents time (unit is 1 hour), and the vertical axis represents dissolved oxygen (DO) amount, and the unit is ppm. As shown in FIG. 6, the change in the amount of dissolved oxygen (DO) decreases to near zero. FIG. 7 shows the oxidation-reduction potential of water in this case. The horizontal axis represents time (unit is 1 hour), and the vertical axis represents oxidation-reduction potential (unit is 100 mV).
It is. As can be understood from this figure, the oxidation-reduction potential decreases immediately after the treatment, but returns to the original state if left untreated, and further increases, and is in an unstable state.

[0011]

As described above, in the conventional apparatus, there is also provided an apparatus for obtaining water having a desired value with respect to one of a dissolved oxygen (DO) amount and an oxidation-reduction potential. Have not been obtained, both of which are desirable values.

[0012] Further, a device provided with a device for removing and sterilizing organic substances, inorganic substances and bacteria contained in water to such a device has not yet been developed. The present invention pays attention to such a point, and it is possible to obtain treated water having desirable values for both the dissolved oxygen amount and the oxidation-reduction potential, and to remove and sterilize organic substances, inorganic substances, and bacteria contained in the water. It provides a method.

[0013]

According to the present invention , an automatic water supply system is provided in a water retention chamber 16 of a closed tank 17 according to the present invention.
For obtaining raw water in a predetermined amount by supplying raw water in the apparatus 14
Formed above the level of the stagnant water in the closed tank 17.
The N ₂ gas is supplied to the gas retaining chamber 15 through the pressure adjusting device 2.
Supplying and circulating the retained water in the closed type tank 17
That the water jet from the water gas mixing pump P _3, hermetic tank
17 mixed with air or oxygen outside
To the composite sound wave generating jet-type water-gas mixing device 9
At the same time, N ₂ gas is supplied inside the closed type tank 17.
It is supplied to the device 9 and mixed with the gas-liquid mixed water to irradiate sound waves.
A process of injecting into the stagnant water while shooting, and a closed tank
The detection value of the oxidation-reduction potential detection sensor 13 provided in
Oxidation-reduction potential indication regulator 11 that outputs an indication value
Step of controlling the amount of the jet water and the intensity of the sound wave to be irradiated
And the accumulated water in the closed type tank 17 is filtered by a filter pump P
_{In 1} the sludge is filtered by passing through the filtration device a.
Passing through the ceramic contacting device b
The position is adjusted to a predetermined value, and passed through the next stage UV irradiation device c.
Sterilizing and then returning to the closed tank 17;
The treated water in the closed tank 17 is sealed in a closed tank.
This problem can be solved by using a method of controlling the oxidation-reduction potential and dissolved gas of water having a sterilizing means comprising the step of taking out from the treated water taking-out port F of No. 17 .

[0014]

The jet-type gas-water mixing device that jets the jet water output from the gas-water mixing pump that circulates the accumulated water in the tank mixes water and gas efficiently and simultaneously emits sound waves and water. Changes the oxidation-reduction potential. The closed-type tank efficiently dissolves the gas supplied under pressure to the upper space in water, and changes the dissolved gas amount of water. In addition, the hermetic type makes the changed oxidation-reduction potential value stable without change over time.

An oxidation-reduction potential indicator adjuster that outputs an indication value according to a detection value of an oxidation-reduction potential sensor provided in the tank controls the amount of jet water output from the gas-water mixing pump and the intensity of the sound waves emitted. The redox potential of water is controlled to a desired value.

A device for circulating and sterilizing water in a tank by a filter pump removes impurities such as sludge and the like in the water by a filtering device such as a partition filter cloth , and deodorizes it. Adjust the potential.
Further, bacteria and the like are sterilized by an ultraviolet irradiation device.

[0017]

FIG. 1 is a block diagram showing an embodiment of the present invention. In the figure, reference numeral 17 denotes a closed type tank, which comprises a water retention chamber 16 for retaining treated water (retained water) and a gas retention chamber 15 above which the N ₂ gas is filled.
1 is N for supplying N ₂ gas to the gas retention chamber 15.
₂ gas supply device, from which gas is supplied to the gas retaining chamber 15 via the pressure adjusting device 2. 3 is a gas exhaust device for exhausting the gas in the gas storage chamber 15,
V ₁₃ is an exhaust device adjusting valve that opens when exhausting gas from the gas exhaust device 3, and 4 is a pressure gauge that measures the gas pressure in the gas retaining chamber 15.

Reference numeral 5 denotes a safety device that operates when the gas pressure in the gas storage chamber 15 is in a dangerous state of a predetermined value or more, and reference numeral 6 denotes an inspection port used when the inspection power inside the sealed tank 17 is required.
Reference numeral 7 denotes a pressure adjusting device that adjusts the gas pressure in the gas retaining chamber 15 and discharges excess gas through the excess gas outlet B. V ₁₄ is a pressure regulator check valve. 8 is a gas purification unit, always shall clean the gas in the gas retaining chamber 15 with circulating pump P ₂ that is connected and purified by circulating gas in the gas residence chamber 15 to this. V ₁₁ is a gas purifier regulating valve. 14 is an automatic watering system, symbol A denotes a water inlet, the raw water introduced from the water supply port A regulates the amount of water supplied through the water supply valve V _5, standing water in the water holding chamber 16 To an appropriate amount.

[0019] 9 is sprayed on the water retained in the tank
An oxidation-reduction potential control device for water that controls and adjusts the injection amount of N ₂ gas and the irradiation amount of sound waves by using a control device capable of controlling the amount of irradiation and the amount of sound waves. It will be called a device.

Circulating the retained water in the closed tank 17
The water jet from the water gas circulation pump P _3, sealed tank 1
7. Mixing air or oxygen outside of 7 with gas-liquid mixed water
And supply it to the composite sound wave generating jet water gas mixing device 9
In both cases , the N ₂ gas is charged inside the closed tank 17.
Irradiate sound waves by supplying the mixture to the gas-liquid mixing water
While spraying into the stagnant water. In the figure, E is a closed type tan
Complex tone N ₂ gas disposed in the gas residence chamber 15 in the click 17
N ₂ gas to be introduced into the wave generating jet type water gas mixing device 9
Indicating the inlet, D is the gas mixed water of the above-mentioned device 9, that is, gas-liquid
The mixed water jet is shown. Although not shown, the water-gas mixture
_On the output side of the combined pump P3 , that is, outside the closed tank 17
Is provided with an air or oxygen supply device. V ₉ is water to that adjustment valve adjusts the amount supplied to the water gas mixed-pump P ₃ in the water holding chamber 16, also, V _10, the water gas mixed <br/> if pump P ₃ to composite sound wave generating jet-type gas-water mixer 9
Is an adjustment valve that to adjust the supply amount to.

[0021] 10 is a pump motor speed control system, the rotation speed control of the motor of the water gas mixed-pump P _3.
Reference numeral 13 denotes an oxidation-reduction potential detection sensor arranged near the bottom in the water retention chamber 16, which measures and detects the oxidation-reduction potential of the retained water filled in the water retention chamber 16, and outputs the data. Reference numeral 11 denotes an oxidation-reduction potential data output from the oxidation-reduction potential detection sensor 13, and
And the pump motor speed control device 10, the oxidation-reduction potential indication regulator for outputting an instruction signal required for control against air or oxygen control equipment (not shown), 12 is a redox potential recorder for recording the data .

[0022] F is treated water outlet to take out the finished water treatment, V ₈ is a water valve connected to the treated water outlet, the treated water is taken out by the water pump of the P _4, is water. Also, V ₇ is a drain valve for draining unwanted water on the bottom of the sealed tank 17.

[0023] G is a filter water outlet provided near the bottom of the sealed tank 17, control valve V _2, the filter water pump P ₁ is to be filtered sterilized is connected is taken out, a further adjustment valve V ₁ and sequentially fed to a filtration device a, a ceramic filling contact device b, and an ultraviolet irradiation device c. The filtering device a is equipped with a partition-like filter cloth, a vibrator, an air blowing pipe, a drain, etc., but these are omitted in the figure. The ceramic filling contact device b is filled with a powdered ceramic whose oxidation-reduction potential has been adjusted. V ₃ is adjusted valves, V ₆ provided between the filtration device a ceramic filling contact device b is an adjustment valve provided in the path for returning the finished water filtration sterilized in an enclosed tank 17. Further, c ′ is an ultraviolet ray generator provided in the ultraviolet ray irradiator c.

On the other hand, the filtering device part of the output water of a is another regulating valve V and the regulating valve V ₃ branches
₄ and through a ceramic coating circuit d, and is introduced into a ceramic tank d ′ whose oxidation-reduction potential has been adjusted.

The operation of the device of the present invention will be described below. Raw water supplied through the water supply valve V ₅ from the water supply port A in the sealed tank 17 an appropriate amount is introduced by automatic watering system 14, retained as retained water in the water holding chamber 16. The retained water is water gas mixed-pump P _3, is jet to the composite wave generation nozzle-type gas water mixing device 9, wherein the composite wave generation jets from N ₂ Gasugaga <br/> scan inlet E is introduced into the formula gas water mixing device 9, the water gas mixed-pump is mixed treated with water jets to the output of the P ₃ to become a gas-liquid mixing water and irradiation simultaneously wave is applied, the gas-liquid mixed water The jet is output from the jet port D.

FIG. 2 is a sectional view of a main part of the jet gas water mixing apparatus for mixing the N ₂ gas and water. In the figure, reference numeral 21 denotes a cylindrical fixed pipe into which a water jet nozzle 22 having a small diameter is fitted. A gas introduction pipe 23 is attached to an intermediate side wall of the fixed pipe 21, and an introduction opening is provided near a tip of the water injection nozzle 22. Reference numeral 24 denotes a gas / water mixing nozzle fitted to the tip of the fixed pipe 21, and outputs treated water.

The circulating water A ′ introduced from the fixed pipe 21 and the input side of the water injection nozzle 22 is jetted from the tip of the water injection nozzle 22 and is input to the gas introduction pipe 23 , that is, the gas inlet C of the mixing device. N ₂ gas to be introduced from
Is mixed with, are those outputted from the ejection port D becomes a gas-liquid mixed water.

The retained water in the water holding chamber 16, the dissolved gas amount is changed by said injection quantity and dose. The oxidation-reduction potential of the retained water in the water retention chamber 16 is measured and detected by an oxidation-reduction potential detection sensor 13 arranged near the bottom of the closed type tank 17, and the data is sent to the oxidation-reduction potential instruction controller 11.

The redox potential indication regulator 11 sent the data, monitors the data, previously set, and the redox potential value, the output quantity of water gas mixed-pump P _3, the N ₂ According to the relationship between the injection amount and the sound wave irradiation amount,
An instruction signal necessary for control is output to the pump motor rotation speed control device 10, an air control device (not shown) and a sound wave generation amount control device.

The instruction signal is a pump motor speed control device 10 and an unillustrated enter air control device in accordance with the instruction signal, the output of the water gas mixed-pump P _3, is introduced from the gas introduction pipe 23 The injection amount of the N ₂ gas to be injected is adjusted to a predetermined amount, and the sound wave generation amount control device also adjusts the irradiation amount of the sound wave emitted through the side wall of the closed type tank 17 according to the instruction signal to obtain the predetermined amount. And

[0031] At the same time such an operation with a closed-type tank 1
To the top of the gas residence chamber 15 of 7, the pressure regulator 2 by the gas supply unit 1, via the gas supply check valve V _12, N
_Two gases are sent. The sent gas is a pressure gauge 4,
Safety device 5 is controlled management to a required pressure by the pressure adjusting device 7, etc., excess gas is discharged from the excess gas exhaust outlet B. The gas in the gas storage chamber 15 is supplied to the gas purifier 8 and the gas purifier 8.
It is always kept clean state by finely circulation pump P _2.
Thus, the control of the dissolved gas is performed.

The oxidation-reduction potential of the water retained in the water retaining chamber 16 is recorded by the oxidation-reduction potential recorder 12 over time. Said redox potential value, the output quantity of water gas mixed-pump P _3, setting the relation between the dose of injection amount and wave N ₂ gas, be fine tuned by modifying this record value based on Can be.

On the other hand, in conjunction with the above operation, the filter water supply port G provided near the bottom of the sealed tank 17, the water to be filtered sterilized by filter pump P ₁ through the control valve V ₂ is taken out, through the control valve V _1, it is sent to the filtration device a, is removed such as sludge. A filtering device a from the adjusting valve V ₃ a through lasts ceramic filled contactors b is
Since the powder ceramic whose oxidation-reduction potential is adjusted is filled, the oxidation-reduction potential of water is adjusted to deodorize, and the water after the treatment is sent to the next ultraviolet irradiation device c.

Furthermore, the ultraviolet irradiation apparatus c, the water by ultraviolet generator c 'is sterilized by exposure to ultraviolet radiation, the above processing has finished water sealed motor <br/> through the regulating valve V ₆ links 17 Is returned to.

Meanwhile, the filtering apparatus part of the output water of a is branched and the regulating valves V ₃ through the ceramic coating circuit d via another control valve V _4, it is adjusted redox potential is introduced into a ceramic tank d ', it is the practice to further fine-tune the redox potential after processing is added to the raw water inputted via the regulating valve V ₁₆ to filter pump P _1.

FIG. 3 shows the results of water treatment by the apparatus embodying the present invention. The figure shows changes in oxidation-reduction potential, where the horizontal axis represents time (unit is 1 hour), and the vertical axis represents oxidation-reduction potential (unit: x100 mV). In the figure, at point A, N
Injection of ₂ gas is started, injection of N ₂ gas is stopped at point B,
Remains sealed tank 17 maintained its closed state, N ₂ gas is left predetermined time staying as a gas holding chamber 15 thereon. Thus, it can be said that the oxidation-reduction potential lowered at the point B is almost stable, though there is a slight increase with the passage of time. The amount of dissolved oxygen (DO) does not increase because a stable state is obtained as shown in FIG.

In this embodiment, the type of gas supplied to the gas retaining chamber is N ₂ gas. However, by selecting the type of gas, desired gas from highly oxidizing water to highly reducing water can be obtained. It is possible to obtain

Further, the oxidation-reduction potential indication regulator 11 in the present embodiment, the output of the water gas mixed-pump P _3, the injection amount of N ₂ gas injected to control the irradiation amount of waves to be irradiated Although configured as described above, this combination is arbitrary according to the purpose and the like, and can be changed in any manner.

[0039]

According to the present invention as described above, according to the present invention, the redox potential control device of water using a closed-type motor <br/> tank, a composite wave generation nozzle-type water gas mixing device, N ₂ gas and injection, redox potential obtained in Nozomu or Shi have value by performing at the same time the radiation of sound waves, so further provided water is filtered sterilizer in the tank, organic matter, process to remove even inorganics and bacteria You can get water. Moreover, since the ceramic filling contact device is provided, a predetermined value of the oxidation-reduction potential can be obtained.

Further, since the composite sound wave generating jet-type water-gas mixing device is used in a closed type tank, the safety is high.

Further, since the N ₂ gas is retained in the closed type tank, the gas pressure can be increased, and thus the solubility in water can be increased.

Irradiation of sound waves in the composite sound wave generating jet water gas mixing apparatus is effective in increasing the degree of solubility in water.

The gas in the gas retention chamber is supplied with a gas purification function.
Since high-purity gas is always dissolved in water by removing impurity gases and the like generated from water, high-quality treated water can be obtained.

Since the water jet mixing device of the composite sound wave generating jet type can control the injection amount of water, the solubility of N ₂ gas in water can be controlled. Therefore, it is also possible to easily control the oxidation-reduction potential.

The jet-type mixing device of the composite sound-generating jet-type water-gas mixing device has the effect of activating water because water clusters (molecular groups) can be reduced.

The value of the oxidation-reduction potential can be arbitrarily controlled to a desired value by the oxidation-reduction potential detection sensor and the oxidation-reduction potential indicating regulator.

[0047] Further, since changing the redox potential of the water without the use of chemicals, since solubility in water of the gas is relatively small, smaller than the due also chemicals change in redox potential . Therefore, fine adjustment of the potential is possible.
In addition, it is possible to freely perform sterilization and growth of microorganisms that must be non-chemical, promote oxidative decomposition of organic substances, and use non-chemicals such as livestock raising, hydroponics, sprouts production, and mushroom cultivation. This enables healthy breeding of animals and plants.
Even when used in natto, liquor, beer, etc., it promotes the generation of these bacteria, prevents decay of the product after production, and is effective for long-term storage. In addition, the rate of animal and plant gain, feed efficiency, and fertilizer efficiency are increased, and productivity is improved.

Since the sterilizer used in the present invention is a combination of a filter, a ceramic method, and an ultraviolet method, it is effective not only for removing organic and inorganic substances and sterilizing bacteria but also for deodorizing. There is something.

Moreover, the device is easy to handle, does not require much time for maintenance, and has the effect of maintaining a healthy and safe living environment.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a jet-type gas-water mixing and sound wave generator according to one embodiment of the present invention.

FIG. 3 is a graph of an oxidation-reduction potential value of treated water obtained by the apparatus of the present invention.

FIG. 4 is a graph of a dissolved oxygen amount when N ₂ gas is injected into water by an aeration method.

FIG. 5 is a graph of an oxidation-reduction potential value when N ₂ gas is injected into water by an aeration method.

FIG. 6 is a graph of dissolved oxygen amount of treated water obtained by a conventional apparatus.

FIG. 7 is a graph of an oxidation-reduction potential value of treated water obtained by a conventional apparatus.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 N ₂ gas supply device 2 pressure adjustment device 3 gas exhaust device 4 pressure gauge 5 safety device 6 inspection port 7 pressure adjustment device 8 gas purification device 9 complex sound wave generation jet type gas water mixing device 10 pump motor rotation speed control device 11 oxidation reduction potential indication regulator 12 redox potential recorder 13 oxidation-reduction potential sensor 14 automatic water supply device 15 gas retaining chamber 16 water holding chamber 17 sealed tank A water supply port B over the gas outlet C mixing device gas inlet D liquid mixed water spout E N ₂ gas inlet F treated water outlet G filter water inlet P ₁ filter pump P ₂ circulation pump P ₃ water gas mixed-pump P ₄ water pump V ₁ control valve V ₂ regulating valve V ₃ control valve V _4-regulating valve V ₅ water supply valve V _6-regulating valve V ₇ drain valve V ₈ water valve V ₉ adjustment valve V ₁₀ adjustment valve ₁₁ Gas purifier regulating valve V ₁₂ Gas supply check valve V ₁₃ exhauster regulating valve V ₁₄ pressure regulator check valve V ₁₆ adjusting valve a filtering device b ceramic filled contactor c ultraviolet irradiation apparatus c 'ultraviolet generator d ceramic Coating circuit d 'ceramic tank

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-231987 (JP, A) JP-A-1-315385 (JP, A) JP-A-4-313384 (JP, A) JP-A-5-305 15897 (JP, A) JP-A-6-79264 (JP, A) JP-A-49-18769 (JP, A) JP-A-58-3993 (JP, U)

Claims (1)

(57) [Claims] A water retention chamber (1) of a closed type tank (17).
6) Raw water is supplied by the automatic water supply device (14)
A step of obtaining an amount of accumulated water, and forming the accumulated water above the level of the accumulated water in the closed type tank (17).
N ₂ gas is supplied to the gas retention chamber (15) with a pressure regulator (2).
And a water-gas mixture for circulating the stagnant water in the closed tank (17).
The water jet from the multiplexer pump _{P 3,} sealed tank (17)
Mixing air or oxygen outside to form gas-liquid mixed water
When supplied to the water jet mixing device (9),
In both cases, N ₂ gas is supplied inside the closed tank (17).
It is supplied to the device (9) and mixed with the gas-liquid mixed water to produce a sound.
A step of irradiating waves into the stagnant water while irradiating waves, and a step of detecting an oxidation-reduction potential detection sensor provided in a closed tank (17).
An oxidation-reduction potential finger that outputs an indicated value based on the detected value of the sensor (13).
The amount and the irradiation of the jet water are indicated by the indicating controller (11).
The step of controlling the intensity of the sound wave and the water remaining in the closed tank (17) are filtered by the filter pump P
_{In 1} the sludge is filtered by passing through the filtration device a.
Redox collector is passed through a ceramic filled contactor b stages
The position is adjusted to a predetermined value, and passed through the next stage UV irradiation device c.
After disinfecting by hermetic motor and step of returning to the sealed tank (17), the treated process water of the sealed tank (17) in
Step of extracting through the treated water outlet F of the ink (17)
And a method for controlling the oxidation-reduction potential and the dissolved gas of the combined acoustic wave generating jet water.