JP2615308B2 - Water reforming method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reforming so-called bad water such as industrial wastewater or river water.

[0002]

2. Description of the Related Art Conventionally, reforming of industrial wastewater and the like has been performed by adding chemicals and the like.

[0003]

However, the use of chemicals or the like has a problem that the cost is high.

An object of the present invention is to provide a method for reforming water that can reform poor water at low cost.

[0005]

Means of the present invention for achieving the above object will be described as follows.

According to a first aspect of the present invention, in the water reforming method, first, second, and third electrodes are disposed in water, and an alternating current is applied between the first and second electrodes to form the third water. Electrodes are grounded, a DC voltage is generated in the water between the first and second electrodes and the third electrode, and a DC current is generated in the water between the first and second electrodes and the third electrode. To reduce the oxidation-reduction potential of the water by electrolyzing the water.

According to a second aspect of the present invention, in the water reforming method, first, second, third, and fourth electrodes are arranged in water, and alternating current is applied between the first and second electrodes. The third and fourth electrodes are alternately grounded at a low cycle, the non-grounded electrode is set to a positive potential, and the third and fourth electrodes are grounded from the first and second electrodes.
Alternatively, a DC voltage is generated in water between the fourth electrode and the first electrode.
And applying a direct current to water between the second electrode and the third or fourth electrode to electrolyze the water to lower the oxidation-reduction potential of the water.

[0008]

When an alternating current is applied between the first and second electrodes in water and the third electrode in water is grounded, a direct current is applied from the first and second electrodes to the third electrode. Electric current flows and the water is electrolyzed. As a result, bubbles are generated in the water, and the oxidation-reduction potential of the water is reduced to a reduction potential.

[0009] In addition, by this treatment, organic compounds in water
Some are gasified and escaped, others are precipitated.
The supernatant water is clean water. This water is also sterilized
Water. When this process is further performed, the container
It can prevent the adhesion of Lucium and the algae.
You. For example, magnesium (Mg) was used for each electrode
In this case, the following reaction occurs around each of the first to third electrodes.
You. When the first electrode is an anode, first: Mg → Mg²⁺+ 2e Third (first side): 2H₂O + 2e → H₂+ 2OH⁻  Second: H₂O → 1 / 2O₂+ 2H⁺+ 2e Third (second side): 2H₂O + 2e → H₂+ 2OH⁻  When the second electrode is an anode, the second is: Mg → Mg²⁺+ 2e Third (first side): 2H₂O + 2e → H₂+ 2OH⁻  Third (second side): H₂O → 1 / 2O₂+ 2H⁺+ 2e 1st: 2H₂O + 2e → H₂+ 2OH⁻ In other words, the elution of metal ions between the first electrode and the second electrode
And hydrogen gas generation, and hydrogen gas and oxygen gas at the third electrode
Is considered to be occurring. Also, with the third electrode
Oxygen is generated when the water to be treated is in a saturated or near normal state.
Hardly dissolves in water,
It is released, and if less, it dissolves in water and dissolves.
It is thought that the amount of stored oxygen increases. Meanwhile, the above reaction
The hydrogen generated by the supersaturation is dissolved in the liquid
it is considered as. As a result, compared to oxidant oxygen
ReturnFormerThe body hydrogen increases and the redox potential decreases
it is considered as. The electrode material used is metal ion
Either eluted or not eluted can be used.

When the third and fourth electrodes are used alternately at a low frequency and the non-grounded electrode is set to a positive potential, the third and fourth electrodes are used during the electrolysis of water.
It is possible to prevent the attachment from being attached to the fourth electrode.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a first embodiment of a water reforming apparatus used in the present invention. In the figure, 1 is a container,
Reference numeral 2 denotes water in the container 1, and reference numerals 3A, 3B, and 3C denote first, second, and third electrodes disposed in the water 2. The third electrode 3C is grounded via the switch 4. 5 is 10V to 50V
Are connected to a DC power supply 5 via a variable resistor 7, and convert a DC voltage from the DC power supply 5 into a high-frequency AC to convert the first and second electrodes 3A, 3A.
These are first and second high-frequency switches alternately applied to 3B. These first and second high-frequency switches 6A and 6B
It is composed of transistors 8A and 9A and 8B and 9B. Reference numeral 10 denotes a capacitor connected between the first and second electrodes 3A and 3B.

Reference numeral 11 denotes first and second high-frequency switches 6A,
A high-frequency switching command circuit comprising a flip-flop circuit for giving a high-frequency switching command to the high-frequency switching command circuit via resistors 12A and 12B.
It is a high-frequency oscillator that provides a high-frequency signal of KHz.

Next, a method for reforming water using such an apparatus will be described. Container 1 containing water 2 such as industrial waste water
A high-frequency alternating current of 30 KHz to 50 KHz at a voltage of 10 V to 50 V is alternately applied to the first and second electrodes 3A and 3B by the action of the first and second high-frequency switches 6A and 6B. Such high-frequency alternating current supplies a high-frequency signal of the high-frequency oscillator 13 to the high-frequency switching command circuit 11, and supplies a high-frequency switching command from the high-frequency switching command circuit 11 to the first and second high-frequency switches 6A and 6B. The first and second high-frequency switches 6A and 6B are turned on and off at a high cycle, and the output from the DC power supply 5 is alternately applied to the first and second electrodes 3A and 3B.

At this time, the AC voltage appearing between the first and second electrodes 3A and 3B is as shown in FIG. The peak values of these AC voltages are determined by the variable resistor 7 .

When a high-frequency alternating current is applied to the first and second electrodes 3A and 3B, the first and second electrodes 3A and 3B
B and a third electrode 3C, a DC voltage is generated, and a DC current is applied to water between the first and second electrodes 3A and 3B and the third electrode 3C, and the first electrode 3A From the third electrode 3C,
It flows alternately from the second electrode 3B to the third electrode 3C.

As a result, the water 2 is electrolyzed.
Bubbles are generated therein, electrons flow through the third electrode 3C to the ground side, and the oxidation-reduction potential of the water 2 drops from, for example, +300 mV to −200 mV to −300 mV in several hours, and becomes the reduction potential.

In the water 2 thus treated, the amount of dissolved oxygen increases by about 10%, and the electric conductivity decreases to about several percent.

Further, when the industrial wastewater is treated, some of the organic compounds are gasified and others are precipitated on the bottom side of the container 1. Therefore, the supernatant may be used, the separation is easy, and the device can be reduced in size and weight and cost can be reduced. The precipitated organic compound may be occasionally cleaned and removed, and maintenance is easy. It was also found that the COD value was reduced to several tenths.

The electrolysis of water by a normal DC voltage is as follows.
The electrolysis of water of the present invention is carried out by applying an electric current of about 5 A to 10 A at a voltage of 4.7 V, and an effective value of 15 V (peak value 30 V to 40 V) of 500 mA to 600 mA.
Since the operation is performed with a current of mA, the power consumption can be reduced to one tenth and energy saving can be achieved.

The treated water obtained by the method of the present invention, oxide instead
Since the original potential is low, the electronic bond of water itself is strengthened, and it is difficult for other substances to be oxidized. That is, substances having a strong unpaired electron in chemical reactivity in water (hereinafter
The presence of a large amount of unpaired electronic substances) results in high oxidation potential and highly irritating water, but in the present invention, hydrogen, which is an unpaired electronic substance generated by the electrolysis of water, is replaced by other <br / > together it is changed to a highly stable unpaired electron coupling state with unpaired electron by binding to unpaired electron material (i.e. strong electron coupling state), to maintain the supersaturated state of the hydrogen.

In the method of the present invention, it has been found that calcium is dissolved in the water when the water is treated, so that the adhesion of calcium can be prevented.

When the water treatment of the present invention is performed in a water receiving tank, rust of the water receiving tank and the water distribution pipe can be prevented, and adhesion of algae can be prevented. In addition, bathing with the obtained water makes the skin smooth.
In addition, you will be able to enter a hot bath without feeling too much heat, and your body will warm.

When the water in the pool was treated by the method of the present invention, the residual chlorine amount hardly changed, but the chlorine odor disappeared in 3 to 4 days, and the COD value in the water decreased after 4 to 5 days. So it became good water for the body.

In the case of making a lotion, if the oxidation-reduction potential is made negative and then the oil is added and dissolved in water, the oil-containing lotion can be made without using a chemical agent such as an emulsifier.
Makes skin lotion smooth without any additives. Since this lotion is made of water which does not rot, it is not inferior and has a low surface tension.

This water has an anesthetic effect, itching,
Pain can be taken. It is also effective against atopic dermatitis and athlete's foot.

In this embodiment, only the oxidation-reduction potential can be adjusted without changing the pH value. That is, when the processing is performed with the switch 4 turned off, the oxidation-reduction potential can be increased, and when the processing is performed with the switch 4 turned on, the oxidation potential can be reduced.

For this reason, pools, baths, industrial circulating water,
It can be used for various purposes because it can be used for different purposes such as COD reduction, sterilization, rust prevention, etc. of a water receiving tank, or by switching over time. For example, in the case of sterilization of a pool, if the oxidation-reduction potential is made positive and then made negative, precipitation of calcium and prevention of rust can also be achieved. Bacteria can be anaerobic or aerobic, and can be dealt with by reforming them into water with both properties.

In the first embodiment, the container 1 can also be used as a third electrode by forming the container 1 from metal and grounding it.

FIG. 3 shows a second embodiment of the water reforming apparatus used in the present invention.

The parts corresponding to those in the first embodiment are denoted by the same reference numerals. In the figure, reference numeral 3D denotes a fourth electrode, which is disposed in the water 2 in opposition to the first to third electrodes 3A to 3C as shown in the drawing. 14
A, 14B are third, fourth electrode 3C, low-frequency switches for grounding at low cycle 3D alternately 15 a high frequency signal 30KHz~50KHz the high-frequency oscillator 13, for example, ^{1/2 14-divided} And the low frequency switching command is given by the resistor 16A,
This is a low frequency switching command circuit provided to the low frequency switches 14A and 14B via 16B. Reference numerals 17A and 17B denote low-frequency switching command circuits to be applied to the low-frequency switches 14A and 14B each including a transistor. Reference numerals 17A and 17B denote resistors for connecting the collectors of the low-frequency switches 14A and 14B made of transistors to the positive side of the DC power supply and holding the third or fourth electrodes 3C and 3D at a positive potential when the switches are turned off.

In this embodiment, the first and second electrodes 3A, 3A
B, a voltage of 10 V to 50 V and 30
A high-frequency alternating current of KHz to 50 KHz is alternately applied by the action of the first and second high-frequency switches 6A and 6B.

On the other hand, a low-frequency switch command circuit 15 supplies a low-frequency signal to the low-frequency switches 14A and 14B, and the low-frequency switches 14A and 14B are turned on alternately at a low cycle. Electrodes 3C and 3D are alternately grounded. The electrode 3C or 3D that is turned off has a resistance 1
It is maintained at a positive potential via 7A or 17B.

In this manner, direct current is alternately applied to the third or fourth electrode 3C, 3D by the rectifying action of water from the first and second electrodes 3A, 3B to which high-frequency alternating current is alternately applied. Will flow.

When the third or fourth electrode 3C, 3D, which is not grounded, is set to a positive potential, adhesion of dust such as calcium to the electrode surface can be prevented, and maintenance is facilitated.

The container 1 may be a water channel such as a pipe. In this case, the electrodes 3A to 3D may be lengthened in the flow direction of water.

Further, in the above embodiment, the case where a high-frequency alternating current is applied to the first and second electrodes has been described. However, the same applies when a low-frequency alternating current is applied to these first and second electrodes. The effect of can be obtained. However, when used in a bath, a higher frequency is preferable because electricity is not felt by the human body.

[0038]

As described above, according to the water reforming method of the present invention, the following effects can be obtained.

According to the first aspect of the present invention, an alternating current is applied between the first and second electrodes in water and the third electrode in water is grounded. A DC voltage flows through the water, and the water is electrolyzed, thereby reducing the oxidation-reduction potential of the water. When the water is treated in this manner, the C
The OD value decreases, some of the organic compounds in the water gasify and escape, and others of the organic compounds can be removed by precipitation. In addition, the occurrence of rust of metal in water can be prevented,
The adhesion of calcium can be prevented, the adhesion of algae can be prevented, the decay of water can be prevented, and the chlorine odor can be removed while leaving the effect of chlorine. In particular, there is an advantage that low-cost equipment can be easily reformed even with industrial wastewater.

According to the second aspect of the present invention, it is possible to prevent an object from adhering not only to the first and second electrodes but also to the third and fourth electrodes, and there is an advantage that maintenance becomes easy.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram of a water reforming apparatus according to a first embodiment of the present invention.

FIG. 2 is a waveform diagram of a high-frequency AC applied to first and second electrodes in the first embodiment.

FIG. 3 is an electric circuit of a water reforming apparatus according to a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Water 3A-3D 1st-4th electrode 4 Switch 5 DC power supply 6A, 6B 1st, 2nd high frequency switch 10 Capacitor 11 High frequency switching command circuit 13 High frequency oscillator 14A, 14B Low frequency switch 15 Low frequency switching Command circuit 17A, 17B Resistance

Claims (2)

(57) [Claims] A first electrode disposed in water; an alternating current applied between the first electrode and the second electrode;
Electrodes are grounded, a DC voltage is generated in the water between the first and second electrodes and the third electrode, and a DC current is generated in the water between the first and second electrodes and the third electrode. And electrolyzing the water to lower the oxidation-reduction potential of the water. 2. The first, second, third, and fourth electrodes are arranged in water, and an alternating current is applied between the first and second electrodes to cause the third and fourth electrodes to have a low period. While alternately grounding, the non-grounded electrode is set to a positive potential, and a DC voltage is generated in the water between the first and second electrodes and the grounded third or fourth electrode. A method for reforming water, characterized in that a direct current is passed through water between the first and second electrodes and the third or fourth electrode, and the water is electrolyzed to lower the oxidation-reduction potential of the water. .