Device for preparing silver-containing ionized water and hydrogen-rich water through in-situ electrolytic silver water flow

Abstract

The invention provides a device for preparing silver-containing ionized water and hydrogen-rich water through in-situ electrolytic silver water flow, and belongs to the technical field of water treatment equipment. A device for preparing silver-containing ionized water and hydrogen-rich water through in-situ electrolysis of silver water flow comprises an electrolysis device, an anode tank and a cathode tank are arranged in the electrolysis device, the anode tank is provided with an anode plate made of a silver material, the cathode tank is provided with a cathode plate made of a stainless steel material or a silver material, and the cathode plate is provided with a water inlet and a water outlet. A diaphragm is arranged between the anode tank and the cathode tank, the diaphragm is an anionic polymer membrane, and the anode tank and the cathode tank are respectively provided with a water inlet and a water outlet. According to the device, the aim of obtaining the silver-containing ionized water and the hydrogen-rich water at the same time is achieved through the in-situ silver electrolysis technology.

Description

Technical Field

[0001] This invention belongs to the field of water treatment equipment technology, specifically relating to an apparatus for preparing silver ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water flow. Background Technology

[0002] Silver possesses broad-spectrum bactericidal properties. Its antibacterial mechanism stems from the fact that silver ions carry a positive charge, while microorganisms generally carry a negative charge. When a certain number and concentration of silver ions accumulate on the surface of microorganisms, they can effectively penetrate the cell wall and enter the microbial cell to react with the sulfhydryl groups of proteins, causing protein coagulation and protease inactivation, thus preventing the microbial cell from dividing and reproducing. Simultaneously, silver ions have a high redox potential, high reactivity, and extremely high reduction potential, which can generate atomic oxygen in the surrounding space, greatly enhancing the antibacterial effect. This physical antibacterial ability of silver gives it outstanding characteristics such as broad-spectrum bactericidal activity, high efficiency, good durability, and high safety. It can effectively kill algae, bacteria, fungi, viruses, and other microorganisms in human and animal drinking water, swimming pools, aquaculture, domestic hot water, and industrial circulating water. Moreover, silver ions can be released from the killed bacteria to exert a bactericidal effect again, exhibiting a long-lasting effect.

[0003] Commonly used silver antibacterial products include silver ion solutions, nano-silver, and various supported silver products. These are used by adding them to water and various cosmetics, detergents, coatings, and fibers. The raw materials for these silver products are all derived from silver nitrate, with stabilizers or loading agents added to form silver ion solutions and solids. Therefore, these derivatives also contain nitrate substances that are harmful to humans and the environment, and they are also very expensive.

[0004] In recent years, many technologies for preparing sterile water through in-situ electrolysis of silver ions have emerged, such as a copper / silver ion sterilization device for an intelligent water circulation system (CN2725278Y), a silver ion disinfection device for Legionella disinfection in domestic hot water (CN204550127U), an electrolytic silver ion water flow sterilization and disinfection device and method (CN105152279A), and a drinking water electrolysis treatment device (CN209383464U). These technologies all suffer from problems such as inaccurate silver ion concentration control, low efficiency, and the inability to separate silver ions from the byproduct hydrogen, resulting in resource waste.

[0005] Hydrogen-rich water, also known as "hydrogen water," refers to water with a suitable amount of dissolved hydrogen gas. In recent years, it has received widespread attention due to its potential health and medical value. Hydrogen is a colorless, odorless, and non-toxic gas with extremely strong permeability and antioxidant capacity. Studies have shown that active hydrogen-rich water has a powerful selective antioxidant effect. Hydrogen can selectively remove toxic free radicals from the body's blood and cells, preventing free radicals from damaging cells, reducing the chance of cell damage, slowing down the rate of cell aging and death, significantly alleviating sub-health problems, thereby reducing the risk of various chronic diseases, improving disease resistance, and restoring health and vitality. This property makes hydrogen-rich water show potential in the prevention and adjuvant treatment of various diseases, such as cardiovascular disease, metabolic syndrome, neurodegenerative diseases, and inflammation-related diseases. In addition, hydrogen-rich water is also believed to help relieve muscle fatigue after exercise, improve skin condition, and promote overall health. Hydrogen-rich water can also be used for agricultural irrigation, including rice, wheat, corn, strawberries, blueberries, tomatoes, and bok choy, not only increasing yield but also improving the quality of agricultural products, such as enhancing taste and increasing nutritional content. Furthermore, it can enhance crops' disease resistance and stress tolerance, reducing the use of chemical fertilizers and pesticides. Because hydrogen-rich water irrigation can significantly improve the yield and quality of agricultural products, it has higher economic value in the market.

[0006] Hydrogen-rich water is typically prepared via electrolysis or physical dissolution, ensuring a stable hydrogen concentration between 0.5 and 1.6 ppm. Currently, the main preparation methods include electrolysis, high-pressure dissolution, and metal reduction. Electrolysis uses a proton exchange membrane electrolyzer to electrolyze pure water, generating high-purity hydrogen at the cathode. Micro-nano bubble technology then stably dissolves the hydrogen in the water, leaving no chemical residue. High-pressure dissolution uses food-grade hydrogen cylinders and a specialized dissolution device to dissolve hydrogen in water at 0.3-0.5 MPa pressure. A vortex mixing process further enhances dissolution efficiency. Metal reduction primarily utilizes the reaction of magnesium rods or particles with water to generate hydrogen. While simple to operate, it carries the risk of metal ion contamination. Currently, electrolysis is perhaps the safest and lowest-cost method, but most methods are single-function and lack integration with silver electrolysis, leading to resource waste and higher costs. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the technical problem to be solved by this invention is to provide an apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water stream, thereby simultaneously obtaining silver-ion-containing water and hydrogen-rich water through in-situ silver electrolysis technology.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water flow includes: an electrolysis device, wherein an anode tank and a cathode tank are provided in the electrolysis device, the anode tank is provided with an anode plate, the anode plate is made of silver material, the cathode tank is provided with a cathode plate, the cathode plate is made of stainless steel material or silver material, a diaphragm is provided between the anode tank and the cathode tank, the diaphragm is an anion exchange polymer membrane, and both the anode tank and the cathode tank are provided with an inlet and an outlet.

[0009] Optionally, a flow meter and a resistivity meter are installed at the inlet of both the anode tank and the cathode tank, a resistivity meter is installed at the outlet of the anode tank, and a hydrogen concentration meter is installed at the outlet of the cathode tank to measure the hydrogen concentration in the water at the outlet.

[0010] Optionally, alkaline purified water, tap water, or deionized water may be introduced into the inlet of the anode tank, and alkaline purified water or tap water may be introduced into the inlet of the cathode tank.

[0011] (1) When tap water is introduced into the anode tank, water with low silver ion content (about 0.05 ppm) can be prepared. This water can be used as sterile water for aquaculture. At this time, the silver ions will not precipitate with the chloride ions, sulfate ions or bicarbonate ions in the tap water; (2) When pure water is introduced into the anode tank, adding an appropriate amount of ammonia water can prepare high concentration silver ion water (100-1000ppm). This water can be used in swimming pools, or to prepare daily chemical antibacterial agents, or food equipment sterilizers. (3) When tap water is introduced into the cathode cell, hydrogen-rich water can be prepared, which can be used for agricultural irrigation. (4) When pure water is introduced into the cathode tank, an appropriate amount of saturated calcium hydroxide solution is added to prepare weakly alkaline calcium-rich hydrogen water, which can be used for beauty and health care. The addition of an appropriate amount of saturated calcium hydroxide solution makes the pH value reach 7.5-8, which increases the conductivity. The weakly alkaline water with a pH value of 7.5-8 is beneficial to health and can also supplement calcium in the human body.

[0012] Optionally, the inlet of the anode tank or cathode tank is connected to tap water or a high-purity water production device.

[0013] Optionally, the cathode plate is connected to an ultrasonic generator to accelerate the removal of hydrogen from the cathode plate and increase the hydrogen dissolved concentration.

[0014] Optionally, the anode tank is equipped with a stirrer to accelerate the diffusion of silver ions.

[0015] Optionally, the electrolysis device is equipped with a control system to control the electrolysis rate and ensure the production of silver ions and hydrogen. The control system includes a PLC chip, a DC power supply, a water quality sensor, and a water flow velocity sensor. The PLC chip contains a mathematical model of the relationship between the concentration of electrolyzed silver ions and the input voltage. The mathematical model is used to adjust the voltage based on the detection results of the water quality sensor and the water flow velocity sensor to obtain the required concentration of silver ions and hydrogen.

[0016] Optionally, multiple sets of anode plates can be provided, and anode plates of different areas can be selected when the silver ion concentration is different, so as to meet the needs of high and low silver ion concentrations.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides an apparatus for preparing silver-ion-containing water and hydrogen-rich water through in-situ electrolysis of silver water streams. It simultaneously achieves the goal of obtaining silver-ion-containing water and hydrogen-rich water using in-situ silver electrolysis technology, offering safety, low cost, and versatility. Specifically, the silver concentration in the silver-ion-containing water can be controlled between 0.05-1000 ppm, and the hydrogen concentration in the hydrogen-rich water can be controlled between 0.5-1.6 ppm. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 : A schematic diagram of the structure of an apparatus for preparing silver ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water flow according to the present invention; The components include: 1. Electrolysis device; 2. Anode tank; 3. Cathode tank; 4. Anode plate; 5. Cathode plate; 6. Diaphragm; 7. Inlet of cathode tank; 8. Outlet of cathode tank; 9. Outlet of anode tank; 10. Ultrasonic generator; 11. Control system. Detailed Implementation

[0020] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] like Figure 1 As shown, an apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water flow includes: an electrolysis device 1, an anode tank 2 and a cathode tank 3 are provided in the electrolysis device 1, an anode plate 4 is provided in the anode tank 2, the anode plate 4 is made of silver, and a cathode plate 5 is provided in the cathode tank 3, the cathode plate 5 is made of stainless steel or silver. The anode plate and the cathode plate are respectively connected to a power source. A diaphragm 6 is provided between the anode tank 2 and the cathode tank 3. The diaphragm 6 is an anion exchange polymer membrane. Both the anode tank 2 and the cathode tank 3 are provided with an inlet and an outlet.

[0023] In some embodiments of the present invention, a flow meter and a resistivity meter are installed at the inlet of both the anode tank 2 and the cathode tank 3, a resistivity meter is installed at the outlet of the anode tank 2, and a hydrogen concentration meter is installed at the outlet of the cathode tank 3.

[0024] In some embodiments of the present invention, alkaline purified water, tap water or deionized water is introduced into the inlet of the anode tank 2, and silver ion-containing water is output from the outlet 9 of the anode tank 2. Alkaline purified water or tap water is introduced into the inlet 7 of the cathode tank 3, and hydrogen-rich water is output from the outlet 8 of the cathode tank 3.

[0025] (1) When tap water is introduced into the inlet of anode tank 2, water with low silver ion content (about 0.05 ppm) can be prepared. This water can be used as sterile water for aquaculture. At this time, the silver ions will not precipitate with the chloride ions, sulfate ions or bicarbonate ions in the tap water; (2) When pure water is introduced into the inlet of anode tank 2, adding an appropriate amount of ammonia water can prepare high concentration silver ion water (100-1000ppm). This water can be used in swimming pools, or to prepare daily chemical antibacterial agents, or food equipment sterilizers. (3) When tap water is introduced into the inlet of cathode tank 3, hydrogen-rich water can be prepared, which can be used for agricultural irrigation. (4) When pure water is introduced into the inlet of cathode tank 3, an appropriate amount of saturated calcium hydroxide solution is added to prepare weakly alkaline calcium-rich hydrogen water, which can be used for beauty and health care. The addition of an appropriate amount of saturated calcium hydroxide solution makes the pH value reach 7.5-8, increases the conductivity, and the weakly alkaline water with a pH value of 7.5-8 is beneficial to health and can also supplement calcium for the human body.

[0026] Hydrogen has very low solubility in water. Under standard conditions, i.e., one atmosphere of pressure and 20 degrees Celsius, 1.83 ml of hydrogen gas (1.65 ppm) can dissolve in 100 ml of water. Water with a concentration of 0.5-1.6 ppm is considered hydrogen-rich.

[0027] In some embodiments of the present invention, the inlet of the anode tank 2 or the cathode tank 3 may be connected to tap water or a high-purity water production device.

[0028] In some embodiments of the present invention, the cathode plate 5 is connected to an ultrasonic generator 10 to accelerate the removal of hydrogen from the cathode plate 5 and increase the hydrogen dissolved concentration.

[0029] In some embodiments of the present invention, the anode tank 2 is equipped with a stirrer to accelerate the diffusion of silver ions.

[0030] In some embodiments of the present invention, the electrolysis device 1 is equipped with a control system 11 for precisely controlling the electrolysis rate to ensure the production of silver ions and hydrogen. The control system 11 includes a PLC chip, a DC power supply, a water quality sensor, and a water flow velocity sensor. The PLC chip, water quality sensor, and water flow velocity sensor are all connected to the DC power supply. The PLC chip contains a mathematical model relating the concentration of electrolyzed silver ions to the input voltage. This mathematical model is used to adjust the applied voltage based on the detection results from the water quality sensor and the water flow velocity sensor to obtain the desired silver ion and hydrogen concentrations. The water quality sensor is used to measure and acquire the resistivity of the object under test, and the water flow velocity sensor is used to measure and acquire the flow rate of the object under test.

[0031] In some embodiments of the present invention, multiple sets of anode plates 4 are provided, and anode plates of different areas can be selected when the silver ion concentration is different, so as to meet the needs of high and low silver ion concentrations.

[0032] The theoretical derivation of the mathematical model relating the concentration of electrolyzed silver ions to the input voltage is as follows: The standard electrode potential of silver is 0.7996V. When silver is used as the positive electrode and an external voltage greater than 0.7996V is applied, the silver electrode undergoes electrolytic oxidation, losing electrons to produce silver ions. The following reaction occurs when silver is used as the positive electrode for the electrolysis of water.

[0033] Anode reaction: Ag-e - =Ag + Cathode reaction: 2H + +2e - =H2↑ The number of silver ions can be calculated based on Faraday's law of electrolysis and the current law.

[0034] Faraday's law of electrolysis: Q=F·(△W·n) / M w In the formula Q is the total charge (C), F is the Faraday constant (96487C / mol), ΔW is the weight of silver electrolyzed (g), n is the valence of silver ions (n=1), and M w The atomic weight of silver, the electrode material, is 107.87 g / mol.

[0035] Current Law: Q = (V / R)·t, where Q is the total charge (C), V is the electrode voltage (V), R is the resistance (Ω), and t is the current application time (s).

[0036] R is the resistance of water, R = (ρ × L) / A, where ρ is the resistivity of water (Ω·cm), L is the effective distance between the two electrodes (in cm), and A is the effective area between the electrodes (in cm²). 2 ).

[0037] F·(△W·n) / M w =(V / R)·t, and substituting into ρ=RA / L, we get: △W Ag = V·A·M w ·t / ρ·L·F = [(A·M w / LF)V·t / ρ] When the electrode area and spacing are fixed, the mass of silver ions produced by electrolysis can be calculated based on the electrolysis voltage and the resistivity of water. If the water flow rate υ (g / s) is known, the concentration of silver ions in the outflowing water (ppm) can be obtained.

[0038] C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·Mw / LF)V·t / ρ] / υ 水 t As can be seen from the above formula, when other factors are determined, the concentration of silver ions is directly proportional to the electrolysis voltage, that is, the desired concentration of silver ions can be obtained by adjusting the voltage.

[0039] Correspondingly, two silver atoms at the anode lose two electrons to gain one molecule of hydrogen gas. The molar amount of hydrogen gas is half the molar amount of silver ions. From this, the mass of hydrogen gas can be obtained. Then, the hydrogen concentration can be obtained from the flow rate υ (g / s) of the water in the cathode tank. △W H2 (ppm) = 2(△W Ag / Mw) 银 / υ 阴 .

[0040] In the following embodiments, the electrode plates in the electrolysis device consist of three sets of plates, each with an area of ​​200 cm². 2 300 cm 2 500 cm 2 The anode is made of silver, and the cathode is made of stainless steel or silver. The area of ​​the connecting plates is determined according to the required silver ion concentration. The distance between the plates is 50 cm.

[0041] Example 1 When the inlet water of the anode tank is tap water, its resistivity ρ is 1500Ω.cm and the flow rate υ is 277.8g / s (1000kg / h).

[0042] The cathode cell has a volume of 10 liters, is filled with 10 kg of high-purity water, and remains stationary. Its resistivity ρ is 18 × 10⁻⁶. 6 Ω·cm, add an appropriate amount of saturated calcium hydroxide solution to make its pH value equal to 8, and its resistivity 2×10 Ω·cm. 4 Ω·cm. At this point, the resistivity between the two electrode slots is approximately 5000 Ω·cm.

[0043] Based on the aforementioned derivation, when the required silver concentration C is 0.05 ppm, the applied voltage is calculated as follows: C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·M w / LF)V·t / ρ] / υ 水 t C 银 =VM w A / FLρυ 水 V = C 银 FLρυ 水 / M w A. At this point, the silver ion concentration is very low, so one electrode plate can be used: C = 0.05ppm = 5 × 10 -8 g, F=96487C / mol, M=107.87g / mol, A=200cm 2 L=50cm, ρ=5000Ωcm, υ 水 =278g / s, Applied voltage: V = 5 × 10 -8 ×96487×5000×50×278 / 107.87×200=15.5 volts.

[0044] At this point, the mass of silver electrolyzed per second, ΔW 银 For: △W 银 = 5×10-8 ×278 = 1.39×10 -5 g, the number of moles of silver is 1.39 × 10 -5 / 107.87 = 1.29×10 -7 mol, which is equivalent to the mass of hydrogen gas produced per second being 1.29 × 10⁻⁶. -7 g.

[0045] If the hydrogen concentration can be reached 1.2 ppm, the time required would be: 1.29 × 10⁻⁶. -7 t / 10000 = 1.2 × 10 -6 , t = 25.8h.

[0046] If a hydrogen concentration of 0.5 ppm is required, it will take 10.77 hours.

[0047] In this embodiment, the effluent from the cathode tank is hydrogen-rich water, which can be used as health-promoting water. The effluent from the anode tank is silver ion-containing water with a silver ion concentration of 0.05 ppm, which can be used as drinking water for livestock.

[0048] Example 2 When both the cathode and anode tanks are filled with pure water, their resistivity ρ = 8 × 10⁻⁶ 6 Ω·cm.

[0049] The anode tank water flow rate υ is 10 g / s (36 kg / h), of which 25% ammonia water is added at a flow rate of 0.25 g / s to make its pH value equal to 10.

[0050] The cathode tank has a volume of 10 liters, into which a saturated calcium hydroxide solution is added at a flow rate of 0.03 g / s to make its pH value equal to 8.

[0051] At this point, the resistivity between the two electrode slots is approximately 1000 Ω·cm.

[0052] Based on the aforementioned derivation, when a silver concentration C of 50 ppm is required, the applied voltage is calculated as follows: C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·M w / LF)V·t / ρ] / υ 水 t C 银 =VM w A / FLρυ 水 V = C 银 FLρυ 水 / M w A. At this point, the silver ion concentration is high, so three electrode plates can be used: C 银 =50ppm=5×10 -5 g, F=96487C / mol, M=107.87g / mol, A=500cm 2 L=50cm ρ=1000Ωcm, υ 水 =10g / s, The applied voltage is: V = 5 × 10 -5 ×96487×1000×50×10 / 107.87×500=44.7 volts.

[0053] At this point, the mass of silver electrolyzed per second is: ΔW 银 = C 银 ×υ 水= 5×10 -5 ×10=50×10 -5 g, which is 4.64 × 10⁻⁶ moles of silver. -7 mol, which is equivalent to the mass of hydrogen gas produced per second being 4.64 × 10⁻⁶. -6 g.

[0054] If the hydrogen concentration can be made to reach 1.2 ppm, then the flow rate of water in the cathode tank will be: 4.64×10 -6 / υ 水 = 1.2×10 -6 υ 水 = 0.931kg / h.

[0055] If the hydrogen concentration can be made to reach 0.5 ppm, then the water flow rate in the cathode tank is 2.23 kg / h.

[0056] If the cathode tank has a volume of 10 liters and the water mass is 10 kg, and it is not flowing, the time required to achieve a hydrogen concentration of 1.2 ppm is: 4.64×10 -6 g×t / 10000=1.2×10 -6 , t=0.72 hours.

[0057] If a hydrogen concentration of 0.5 ppm is required, it will take 0.3 hours.

[0058] In this embodiment, the effluent from the cathode tank is hydrogen-rich water, which can be used as health-promoting water. The silver ion concentration in the effluent from the anode tank is 50 ppm, which can be used as an antibacterial additive in cosmetics and detergents.

[0059] Example 3 When both the cathode and anode tanks are filled with pure water, their resistivity ρ = 8 × 10⁻⁶ 6 Ω·cm.

[0060] The anode tank water flow rate υ is 10 g / s (36 kg / h), of which 25% ammonia water is added at a flow rate of 0.25 g / s to make its pH value approximately 10.

[0061] The cathode tank has a volume of 10 liters, into which a saturated calcium hydroxide solution is added at a flow rate of 0.03 g / s to make its pH value approximately 8.

[0062] At this point, the resistivity between the two electrode slots is approximately 1000 Ω·cm.

[0063] Based on the aforementioned derivation, when a silver concentration C of 100 ppm is required, the applied voltage is: C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·M w / LF)V·t / ρ] / υ 水 t C 银 =VM w A / FLρυ 水 V = C 银 FLρυ 水 / M w A, at this point the silver ion concentration is high, and a 1000cm² solution can be used. 2 Electrode plates: C 银 =100ppm=1×10 -4 g, F=96487C / mol, M=107.87g / mol, A=1000cm 2 L=50cm ρ=1000Ωcm, υ 水 =10g / s V=1×10 -4 ×96487×1000×50×10 / 107.87×1000=44.7 volts.

[0064] At this point, the mass of silver electrolyzed per second is: △W 银 = C 银 ×υ 水= 1×10 -4 ×10=10×10 -4 g, which is 9.27 × 10⁻⁶ moles of silver. -6 mol, which is equivalent to 9.27 × 10⁻⁶ mol of hydrogen gas produced per second. -6 g.

[0065] If the hydrogen concentration can be made to reach 1.2 ppm, then the flow rate of water in the cathode tank will be: 9.27×10 -6 / υ 水 = 1.2×10 -6 υ 水 = 27.81kg / h If the hydrogen concentration can be made to reach 0.5 ppm, then the water flow rate in the cathode tank is 66.74 kg / h.

[0066] In this embodiment, the effluent from the cathode tank is hydrogen-rich water, which can be used as health care water. The silver ion concentration in the effluent from the anode tank is 100 ppm, which can be used as an antibacterial additive in cosmetics and detergents.

[0067] Example 4 When the water entering the anal drain is tap water, the resistivity is 1500Ω·cm.

[0068] The anode tank is fed with pure water at a flow rate of 10 g / s (36 kg / h). 25% ammonia is added at a flow rate of 0.25 g / s to make the pH value approximately 10.

[0069] At this point, the resistivity between the two electrode slots is approximately 800 Ω·cm.

[0070] Based on the aforementioned derivation, when a silver concentration C of 100 ppm is required, the applied voltage is: C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·M w / LF)V·t / ρ] / υ 水 t C 银 =VM w A / FLρυ 水 V = C 银 FLρυ 水 / M w A, at this point the silver ion concentration is high, and a 1000cm² solution can be used. 2 Electrode plates: C 银 =100ppm=1×10 -4 g, F=96487C / mol, M=107.87g / mol, A=1000cm 2 L=50cm, ρ=800Ωcm, υ 水 =10g / s V=1×10 -4×96487×800×50×10 / 107.87×1000=35.8 volts.

[0071] At this point, the mass of silver electrolyzed per second is: △W 银 = C 银 ×υ 水= 1×10 -4 ×10=10×10 -4 g, which is 9.27 × 10⁻⁶ moles of silver. -6 mol, which is equivalent to 9.27 × 10⁻⁶ mol of hydrogen gas produced per second. -6 g.

[0072] If the hydrogen concentration can be made to reach 0.8 ppm, then the flow rate of water in the cathode tank will be: 9.27×10 -6 / υ 水 = 0.8×10 -6 υ 水 = 41.72kg / h In this embodiment, the effluent from the cathode tank is hydrogen-rich water, which can be used for irrigation. The silver ion concentration in the effluent from the anode tank is 100 ppm, which can be used as an antibacterial additive in cosmetics and detergents.

[0073] Example 5 When the water entering the anal drain is tap water, the resistivity is 1500Ω·cm.

[0074] The anode tank is fed with pure water, and 25% ammonia is added to the water at a flow rate of 0.3 g / s to make its pH value approximately 10.5.

[0075] At this point, the resistivity between the two electrode slots is approximately 800 Ω·cm.

[0076] Based on the aforementioned derivation, when the required silver concentration C is 1000 ppm and the applied voltage is 35.8 volts, calculate the water flow rate.

[0077] C 银 =△W 银 / W 水 = △W 银 / υ 水 t = [(A·M w / LF)V·t / ρ] / υ 水 t C 银 =VM w A / FLρυ 水 V = C 银 FLρυ 水 / M wA, at this point the silver ion concentration is high, and a 1000cm² solution can be used. 2 Electrode plates: C 银 =1000ppm=10 -3 g, F=96487C / mol, M=107.87g / mol, A=1000cm 2 L=50cm, ρ=800Ωcm The water flow velocity is: υ 水 = VM w A / C 银 FLρ = 1.0 g / s = 3.6 kg / hour At this point, the mass of silver electrolyzed per second is the same as in Example 4, that is, the number of moles of silver produced is 9.27 × 10⁻⁶. -6 mol, which is equivalent to 9.27 × 10⁻⁶ mol of hydrogen gas produced per second. -6 g.

[0078] If the hydrogen concentration can be made to reach 0.8 ppm, then the flow rate of water in the cathode tank will be: 9.27×10 -6 / υ 水 = 0.8×10 -6 υ 水 = 41.72kg / h In this embodiment, the effluent from the cathode tank is hydrogen-rich water, which can be used for irrigation. The silver ion concentration in the effluent from the anode tank is 100 ppm, which can be used as an antibacterial additive in cosmetics and detergents.

[0079] The above embodiments show that the present invention can simultaneously obtain silver-ion-containing water and hydrogen-rich water through in-situ silver electrolysis technology. The silver concentration in the silver-ion-containing water can be controlled between 0.05-1000 ppm, and the hydrogen concentration in the hydrogen-rich water can be controlled between 0.5-1.6 ppm.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. An apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water stream, characterized in that: include: An electrolysis device (1) is provided with an anode tank (2) and a cathode tank (3). An anode plate (4) is provided in the anode tank (2). The anode plate (4) is made of silver. A cathode plate (5) is provided in the cathode tank (3). The cathode plate (5) is made of stainless steel or silver. A diaphragm (6) is provided between the anode tank (2) and the cathode tank (3). The diaphragm (6) is an anion polymer membrane. Both the anode tank (2) and the cathode tank (3) are provided with an inlet and an outlet.

2. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The inlets of the anode tank (2) and the cathode tank (3) are equipped with flow meters and resistivity meters, the outlet of the anode tank (2) is equipped with a resistivity meter, and the outlet of the cathode tank (3) is equipped with a hydrogen concentration meter.

3. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The inlet of the anode tank (2) is supplied with alkaline purified water, tap water or deionized water, and the inlet of the cathode tank (3) is supplied with alkaline purified water or tap water.

4. The apparatus for preparing silver ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The inlet of the anode tank (2) or cathode tank (3) can be connected to tap water or a high-purity water production device.

5. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The cathode plate (5) is connected to an ultrasonic generator (10) to accelerate the removal of hydrogen from the cathode plate (5) and its dissolution in water.

6. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The anode tank (2) is equipped with a stirrer to accelerate the diffusion of silver ions.

7. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The electrolysis device (1) is equipped with a control system (11), which includes a PLC chip, a DC power supply, a water quality sensor and a water flow velocity sensor. The PLC chip contains a mathematical model of the relationship between the concentration of electrolyzed silver ions and the input voltage. The mathematical model is used to adjust the voltage based on the detection results of the water quality sensor and the water flow velocity sensor to obtain the required silver ion concentration and hydrogen concentration.

8. The apparatus for preparing silver-ion-containing water and hydrogen-rich water by in-situ electrolysis of silver water as described in claim 1, characterized in that: The anode plate (4) is set in multiple groups. When the silver ion concentration is different, anode plates of different areas are selected to meet the needs of high and low silver ion concentration.

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