Hydrogen energy electrolysis circulating water purification method and system

Abstract

The invention discloses a hydrogen energy electrolysis circulating water purification method and system, and is used in the field of wastewater treatment.The hydrogen energy electrolysis circulating water purification method comprises the following steps that the water quality of an original water source is analyzed, and the original water source is pretreated; the pretreated original water source is electrolyzed to generate hydrogen and oxygen, and meanwhile waste water generated in the electrolysis process is collected; carrying out water quality treatment on the collected wastewater; monitoring the water quality of the treated wastewater, and recycling and storing if the water quality meets a preset recycling standard; when recycled water is recycled, the recycled water is cooled through a pre-configured cooling system. Operation parameters can be automatically adjusted according to the water quality condition, the efficiency and accuracy of the whole system are improved, and the requirement for manual intervention is reduced.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and in particular to a method and system for purifying circulating water by hydrogen energy electrolysis. Background Art

[0002] Hydrogen energy electrolysis circulating water refers to the water source used and reused in the process of producing hydrogen by electrolysis of water. This water is recycled to reduce production costs and reduce environmental impact. In the hydrogen production process, water is the main raw material for electrolytes, and hydrogen and oxygen are generated through electrolysis reactions. However, in order to ensure the efficiency of the electrolysis process and the life of the equipment, the water used for electrolysis needs to meet certain purity requirements, so the circulating water must be purified during use.

[0003] The hydrogen purification system removes oxygen, water, mechanical impurities, dust particles and other impurities in hydrogen through two steps: deoxygenation and drying, thereby significantly improving the purity of hydrogen. High-purity hydrogen can show better performance and efficiency in applications such as fuel cells.

[0004] Traditional methods of producing hydrogen by water electrolysis usually ignore the collection and deep purification of wastewater, fail to make full use of water resources, and lead to increased water costs and increased environmental burden. Conventional wastewater treatment technologies lack multiple purification steps, such as ion exchange, membrane treatment and reverse osmosis, etc., and the removal effect of harmful substances is poor. The treatment of wastewater concentrate is not perfect, which is easy to cause secondary pollution and does not meet strict environmental protection requirements. Many traditional water treatment systems lack real-time monitoring and automatic control functions, require a lot of manual intervention, and it is difficult to adjust the treatment parameters in time according to changes in water quality, resulting in complex operation, low efficiency and unstable treatment effect.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In order to overcome the above problems, the present invention aims to propose a hydrogen energy electrolysis circulating water purification method and system, with the aim of solving the problems that many traditional water treatment systems lack real-time monitoring and automatic control functions, require a lot of manual intervention, and are difficult to adjust treatment parameters in time according to changes in water quality, resulting in complex operation, low efficiency, and unstable treatment effects.

[0007] To this end, the specific technical solution adopted by the present invention is as follows:

[0008] According to one aspect of the present invention, a method for purifying circulating water by electrolysis of hydrogen energy is provided, and the method for purifying circulating water by electrolysis of hydrogen energy comprises the following steps:

[0009] S1. Analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water, and pre-treat the original water source according to the identification results;

[0010] S2. electrolyze the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collect wastewater generated during the electrolysis process;

[0011] S3. Treat the collected wastewater by removing electrolyte residues, treating organic matter, removing heavy metal ions and deep purification;

[0012] S4. Monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standards, recycle and store it;

[0013] S5. When recycling recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously tested in real time. The operating parameters of the electrolysis equipment and wastewater treatment process are automatically adjusted based on data feedback.

[0014] Optionally, analyzing the original water source and pre-processing the original water source based on the analysis result comprises the following steps:

[0015] S11. Collect water samples at different locations and time points of the original water source;

[0016] S12. Test the water samples for physical, chemical and biological indicators, use a turbidity meter to identify the suspended solids content in the water, and measure the organic matter content by TOC;

[0017] S13, testing the ion concentration of the water sample, analyzing the dissolved salt ions in the water using ion chromatography, and detecting other impurities at the same time;

[0018] S14. Analyze the test data, evaluate the overall water quality, and identify indicators that exceed the standards;

[0019] S15. Select appropriate equipment and process for treatment based on water quality analysis results.

[0020] Optionally, testing the water sample for physical, chemical and biological indicators, using a turbidity meter to identify the suspended solids content in the water, and determining the organic matter content by TOC includes the following steps:

[0021] S121. After collecting the water sample, filter the water sample with filter paper or filter membrane to remove suspended particles;

[0022] S122. According to the requirements of the ion chromatograph, the water sample is appropriately diluted to ensure that the ion concentration is within the detection range;

[0023] S123, calibrating the ion chromatograph using the standard solution, and injecting the diluted water sample into the sample injection port of the ion chromatograph;

[0024] S124, the water sample is sent into the chromatographic column by a high pressure pump, and the dissolved salt ions are separated in the chromatographic column according to their different charges and polarities;

[0025] S125, the chromatographic column separates different ions in the water sample, passes through the conductivity detector or the ultraviolet detector in turn, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak;

[0026] S126. Analyze the test results, generate a chromatogram, and use the standard curve to quantitatively calculate the peak area of ​​each ion to obtain the specific concentration of dissolved salt ions in the water.

[0027] Optionally, the chromatographic column separates different ions in the water sample, passes through a conductivity detector or an ultraviolet detector in sequence, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak, including the following steps:

[0028] S1251. The dissolved salt ions in the water sample are separated in the chromatographic column according to their charge, size and polarity characteristics;

[0029] S1252. The separated ions are detected by a conductivity detector, the response peak of each ion is accurately recorded, and an ultraviolet detector is used for auxiliary analysis;

[0030] S1253. Use the standard curve to accurately compare and quantitatively analyze the response peak area of ​​each ion to determine the specific concentration of each ion in the water sample.

[0031] Optionally, electrolyzing the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collecting wastewater generated during the electrolysis process includes the following steps:

[0032] S21, injecting the pre-treated raw water source into the electrolytic cell;

[0033] S22, starting the pre-configured electrolysis equipment, applying current, starting the electrolysis process, and decomposing the molecules in the water into hydrogen and oxygen under the action of the electrodes;

[0034] S23, collecting the generated hydrogen and oxygen respectively through a pre-configured gas collection device;

[0035] S24. During the electrolysis process, collecting wastewater generated during the electrolysis process;

[0036] S25. Monitor the operating parameters of the electrolysis equipment in real time and adjust the equipment operating status as needed.

[0037] Optionally, the collected wastewater is treated to remove electrolyte residues, treat organic matter, remove heavy metal ions and undergo deep purification, including the following steps:

[0038] S31, passing the collected wastewater through ion exchange resin or reverse osmosis equipment to remove residual electrolytes in the water;

[0039] S32, treating organic matter in wastewater by biological filter;

[0040] S33, removing heavy metal ions from wastewater by precipitation method;

[0041] S34, use membrane treatment technology to remove tiny particles, pathogenic microorganisms and other impurities;

[0042] S35. Monitor each step of wastewater treatment in real time and adjust the treatment parameters in a timely manner according to the test results.

[0043] Optionally, the collected wastewater is passed through an ion exchange resin or a reverse osmosis device to remove residual electrolytes in the water, including the following steps:

[0044] S311. Use pre-configured microfiltration equipment to remove large particles of impurities from wastewater;

[0045] S312, removing dissolved electrolyte ions in the wastewater by cation and anion exchange resins;

[0046] S313, using reverse osmosis equipment to remove remaining dissolved ions and impurities in wastewater under high pressure conditions;

[0047] S314. Regularly use the regeneration solution to regenerate the ion exchange resin to restore its deionization capacity.

[0048] Optionally, using membrane treatment technology to remove tiny particles, pathogenic microorganisms and other impurities includes the following steps:

[0049] S341, remove tiny particles, bacteria and viruses in wastewater through ultrafiltration membrane, significantly reduce turbidity and microbial content;

[0050] S342. Use nanofiltration membrane to remove organic matter, small molecule pollutants and some inorganic salts in wastewater;

[0051] S343, during the membrane treatment process, real-time monitoring of membrane performance and effluent quality;

[0052] S344, backwash the membrane regularly, using cleaning agents and pre-set flushing frequency to prevent membrane contamination;

[0053] S345 collects the concentrated liquid produced during the membrane treatment process and performs specialized subsequent treatment based on its composition and properties.

[0054] Optionally, when recycling the recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously detected in real time. The operating parameters of the electrolysis equipment and the wastewater treatment process are automatically adjusted according to the data feedback, including the following steps:

[0055] S51, start the cooling system to cool the recycled water through a heat exchanger or a cooling tower;

[0056] S52, real-time monitoring of water quality parameters including temperature, pH value, conductivity, and dissolved oxygen in the recovered water;

[0057] S53, analyzing and recording the monitoring data to determine the trend of water quality changes;

[0058] S54 automatically adjusts the operating parameters of the electrolysis equipment including current, voltage or electrolysis time according to the water quality monitoring data;

[0059] S55. Automatically adjust the operating parameters of the wastewater treatment process including the amount of treatment agent added, treatment time, and flow rate according to the change in the water quality of the recycled water.

[0060] According to another aspect of the present invention, a hydrogen energy electrolysis circulating water purification system is also provided, the hydrogen energy electrolysis circulating water purification system comprising: a water quality analysis and pretreatment module, an electrolysis water generation and wastewater collection module, a wastewater treatment and purification module, a water quality monitoring module and a parameter adjustment module;

[0061] The water quality analysis and pretreatment module is used to analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water, and pre-treat the original water source according to the identification results;

[0062] An electrolytic water generation and wastewater collection module, which is used to electrolyze the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collect the wastewater generated during the electrolysis process;

[0063] Wastewater treatment and purification module, used to treat the collected wastewater including removing electrolyte residues, treating organic matter, removing heavy metal ions and deep purification;

[0064] The water quality monitoring module is used to monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standards, it will be recycled and stored;

[0065] The parameter adjustment module is used to cool the recycled water through a pre-configured cooling system when recycling the recycled water, and continuously detect water quality parameters in real time, and automatically adjust the operating parameters of the electrolysis equipment and wastewater treatment process according to data feedback.

[0066] Compared with the prior art, this application has the following beneficial effects:

[0067] 1. The present invention can effectively identify and remove impurities such as suspended matter, organic matter and dissolved salt ions through multiple analyses and pretreatments of the original water source, thereby ensuring the purification of water quality, improving the efficiency of the subsequent electrolysis process, and avoiding damage to the electrolysis equipment by pollutants; during the electrolysis process, hydrogen and oxygen are effectively separated and collected, hydrogen can be used as clean energy, and oxygen can be used for industrial production or other purposes. At the same time, wastewater is deeply purified after being collected, realizing the recycling of water resources and reducing water use costs and environmental impacts.

[0068] 2. The multiple wastewater treatment schemes of the present invention, including ion exchange, membrane treatment technology and reverse osmosis, ensure the effective removal of harmful substances, and avoid secondary pollution through special treatment of concentrated liquid, which meets environmental protection requirements; real-time monitoring and automatic control systems are introduced at various stages to make the treatment process more intelligent, and can automatically adjust operating parameters according to water quality conditions, thereby improving the efficiency and accuracy of the entire system and reducing the need for human intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The above characteristics, features and advantages of the present invention and their implementation methods and methods will become more clearly understood in conjunction with the following description of the embodiments, which are described in detail in conjunction with the accompanying drawings. Herein, a schematic diagram is shown:

[0070] Figure 1 This is a flow chart of a method for purifying circulating water by electrolysis of hydrogen energy according to an embodiment of the present invention;

[0071] Figure 2 It is a principle block diagram of a hydrogen energy electrolysis circulating water purification system according to an embodiment of the present invention.

[0072] In the figure:

[0073] 1. Water quality analysis and pretreatment module; 2. Electrolyzed water generation and wastewater collection module; 3. Wastewater treatment and purification module; 4. Water quality monitoring module; 5. Parameter adjustment module. DETAILED DESCRIPTION

[0074] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0075] According to an embodiment of the present invention, a method and system for purifying circulating water by electrolysis of hydrogen energy are provided.

[0076] The present invention is further described with reference to the accompanying drawings and specific embodiments. Figure 1 As shown, according to one embodiment of the present invention, a method for purifying circulating water by electrolysis of hydrogen energy is provided, and the method for purifying circulating water by electrolysis of hydrogen energy comprises the following steps:

[0077] S1. Analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water, and pre-treat the original water source based on the identification results.

[0078] Preferably, analyzing the original water source and pre-processing the original water source based on the analysis results comprises the following steps:

[0079] S11. Collect water samples at different locations and time points of the original water source;

[0080] S12. Test the water samples for physical, chemical and biological indicators, use a turbidity meter to identify the suspended solids content in the water, and measure the organic matter content by TOC;

[0081] S13, testing the ion concentration of the water sample, analyzing the dissolved salt ions in the water using ion chromatography, and detecting other impurities at the same time;

[0082] S14. Analyze the test data, evaluate the overall water quality, and identify indicators that exceed the standards;

[0083] S15. Select appropriate equipment and process for treatment based on water quality analysis results.

[0084] Preferably, the water sample is tested for physical, chemical and biological indicators, the suspended solids content in the water is identified by a turbidity meter, and the organic matter content is determined by TOC, which includes the following steps:

[0085] S121. After collecting the water sample, filter the water sample with filter paper or filter membrane to remove suspended particles;

[0086] S122. According to the requirements of the ion chromatograph, the water sample is appropriately diluted to ensure that the ion concentration is within the detection range;

[0087] S123, calibrating the ion chromatograph using the standard solution, and injecting the diluted water sample into the sample injection port of the ion chromatograph;

[0088] S124, the water sample is sent into the chromatographic column by a high pressure pump, and the dissolved salt ions are separated in the chromatographic column according to their different charges and polarities;

[0089] S125, the chromatographic column separates different ions in the water sample, passes through the conductivity detector or the ultraviolet detector in turn, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak;

[0090] S126. Analyze the test results, generate a chromatogram, and use the standard curve to quantitatively calculate the peak area of ​​each ion to obtain the specific concentration of dissolved salt ions in the water.

[0091] Preferably, the chromatographic column separates different ions in the water sample, passes through a conductivity detector or an ultraviolet detector in sequence, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak, including the following steps:

[0092] S1251. The dissolved salt ions in the water sample are separated in the chromatographic column according to their charge, size and polarity characteristics;

[0093] S1252. The separated ions are detected by a conductivity detector, the response peak of each ion is accurately recorded, and an ultraviolet detector is used for auxiliary analysis;

[0094] S1253. Use the standard curve to accurately compare and quantitatively analyze the response peak area of ​​each ion to determine the specific concentration of each ion in the water sample.

[0095] When explanation is needed, a factory plans to treat river water to meet industrial water standards. The water source may contain suspended matter, organic matter, ions and other impurities, so water quality analysis and corresponding pretreatment are required.

[0096] The factory's technical team collected water samples from the upper, middle and lower reaches of the river to ensure that the water samples can reflect the differences in the overall water quality of the water source. At the same time, water samples were collected in the morning, afternoon and evening to examine the changes in water quality at different time periods.

[0097] Technicians used a turbidity meter to measure the suspended solids content in the water samples, and a total organic carbon (TOC) analyzer to measure the concentration of organic matter in the water. The turbidity meter showed that the suspended solids content of the midstream water samples was higher than that of the upstream and downstream, while the TOC analysis found that the concentration of organic matter was higher in the downstream of the river, indicating that there was a pollution source downstream.

[0098] The plant laboratory uses ion chromatography to analyze dissolved salt ions in water samples. The upstream water samples showed low sodium ion concentrations, while the downstream water samples had high concentrations of calcium, magnesium and other ions, indicating that the downstream of the river may be affected by dissolved minerals or industrial discharges.

[0099] Through the test data, the factory technical team found that the concentration of suspended solids and organic matter in the downstream of the river exceeded the standard, and the dissolved salt ions also exceeded the standard for factory water. Based on this data, the technical team identified the pollution sources that needed to be dealt with.

[0100] Based on the results of the water quality analysis, the plant decided to add sand filtration equipment to the pretreatment process to remove suspended solids, use activated carbon adsorption to reduce the organic content, and add reverse osmosis equipment to reduce the concentration of dissolved salt ions.

[0101] S2. Use pre-configured electrolysis equipment to electrolyze the pre-treated raw water source to generate hydrogen and oxygen, and collect the wastewater generated during the electrolysis process.

[0102] Preferably, electrolyzing the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collecting wastewater generated during the electrolysis process comprises the following steps:

[0103] S21, injecting the pre-treated raw water source into the electrolytic cell;

[0104] S22, starting the pre-configured electrolysis equipment, applying current, starting the electrolysis process, and decomposing the molecules in the water into hydrogen and oxygen under the action of the electrodes;

[0105] S23, collecting the generated hydrogen and oxygen respectively through a pre-configured gas collection device;

[0106] S24. During the electrolysis process, collecting wastewater generated during the electrolysis process;

[0107] S25. Monitor the operating parameters of the electrolysis equipment in real time and adjust the equipment operating status as needed.

[0108] It should be explained that the factory injects river water that has been pre-treated by sand filtration and activated carbon adsorption into the electrolytic cell, starts the pre-configured electrolysis equipment, and decomposes water molecules into hydrogen and oxygen through the action of electric current. Hydrogen and oxygen are collected and stored by gas collection devices respectively. During the electrolysis process, the factory also collects the electrolysis wastewater generated and sends it to the wastewater treatment system. During the entire electrolysis process, the equipment operating parameters such as current and voltage are adjusted in real time by the monitoring system to ensure electrolysis efficiency and safety.

[0109] S3. The collected wastewater is treated to remove electrolyte residues, treat organic matter, remove heavy metal ions and undergo deep purification.

[0110] Preferably, the collected wastewater is treated to remove electrolyte residues, treat organic matter, remove heavy metal ions and undergo deep purification, including the following steps:

[0111] S31, passing the collected wastewater through ion exchange resin or reverse osmosis equipment to remove residual electrolytes in the water;

[0112] S32, treating organic matter in wastewater by biological filter;

[0113] S33, removing heavy metal ions from wastewater by precipitation method;

[0114] S34, use membrane treatment technology to remove tiny particles, pathogenic microorganisms and other impurities;

[0115] S35. Monitor each step of wastewater treatment in real time and adjust the treatment parameters in a timely manner according to the test results.

[0116] Preferably, the collected wastewater is passed through an ion exchange resin or a reverse osmosis device to remove residual electrolytes in the water, comprising the following steps:

[0117] S311. Use pre-configured microfiltration equipment to remove large particles of impurities from wastewater;

[0118] S312, removing dissolved electrolyte ions in the wastewater by cation and anion exchange resins;

[0119] S313, using reverse osmosis equipment to remove remaining dissolved ions and impurities in wastewater under high pressure conditions;

[0120] S314. Regularly use the regeneration solution to regenerate the ion exchange resin to restore its deionization capacity.

[0121] Preferably, the membrane treatment technology is used to remove tiny particles, pathogenic microorganisms and other impurities, including the following steps:

[0122] S341, remove tiny particles, bacteria and viruses in wastewater through ultrafiltration membrane, significantly reduce turbidity and microbial content;

[0123] S342. Use nanofiltration membrane to remove organic matter, small molecule pollutants and some inorganic salts in wastewater;

[0124] S343, during the membrane treatment process, real-time monitoring of membrane performance and effluent quality;

[0125] S344, backwash the membrane regularly, using cleaning agents and pre-set flushing frequency to prevent membrane contamination;

[0126] S345 collects the concentrated liquid produced during the membrane treatment process and performs specialized subsequent treatment based on its composition and properties.

[0127] It should be explained that the wastewater produced by electrolysis is finely treated. First, large particles of impurities are removed by microfiltration equipment. Subsequently, cation and anion exchange resins are used to remove dissolved electrolytes in the wastewater. To ensure the removal effect, the wastewater is also passed through reverse osmosis equipment under high pressure to further remove residual ions and impurities. The ion exchange resin is regularly treated with regeneration solution to restore its deionization capacity. Next, the wastewater enters the biofilter to treat organic matter, and after the precipitation method removes heavy metals, it is deeply purified by membrane treatment technology. In the membrane treatment stage, ultrafiltration membranes are used to remove tiny particles, bacteria and viruses, while nanofiltration membranes effectively remove organic matter and small molecular pollutants. Throughout the process, the performance of the membrane and the quality of the effluent are monitored in real time by online monitoring equipment, and backwashing is performed regularly to prevent membrane contamination. After the concentrate produced by the membrane treatment is collected, it is subjected to special subsequent treatment according to its composition to ensure that no secondary pollution occurs. The entire wastewater treatment process is monitored in real time by an automated system, and the parameters of each treatment link are adjusted in a timely manner to ensure that the treatment efficiency and water quality meet the standards.

[0128] S4. Monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standards, it will be recycled and stored.

[0129] S5. When recycling recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously tested in real time. The operating parameters of the electrolysis equipment and wastewater treatment process are automatically adjusted based on data feedback.

[0130] Preferably, when recycling the recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously detected in real time. The operating parameters of the electrolysis equipment and the wastewater treatment process are automatically adjusted according to the data feedback, including the following steps:

[0131] S51, start the cooling system to cool the recycled water through a heat exchanger or a cooling tower;

[0132] S52, real-time monitoring of water quality parameters including temperature, pH value, conductivity, and dissolved oxygen in the recovered water;

[0133] S53, analyzing and recording the monitoring data to determine the trend of water quality changes;

[0134] S54 automatically adjusts the operating parameters of the electrolysis equipment including current, voltage or electrolysis time according to the water quality monitoring data;

[0135] S55. Automatically adjust the operating parameters of the wastewater treatment process including the amount of treatment agent added, treatment time, and flow rate according to the change in the water quality of the recycled water.

[0136] According to another embodiment of the present invention, Figure 2As shown, a hydrogen energy electrolysis circulating water purification system is also provided, and the hydrogen energy electrolysis circulating water purification system includes: a water quality analysis and pretreatment module 1, an electrolysis water generation and wastewater collection module 2, a wastewater treatment and purification module 3, a water quality monitoring module 4 and a parameter adjustment module 5;

[0137] The water quality analysis and pretreatment module 1 is used to analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water quality, and pre-treat the original water source according to the identification results;

[0138] The electrolytic water generation and wastewater collection module 2 is used to electrolyze the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collect the wastewater generated during the electrolysis process;

[0139] Wastewater treatment and purification module 3, used for water quality treatment including removal of electrolyte residues, treatment of organic matter, removal of heavy metal ions and deep purification of the collected wastewater;

[0140] The water quality monitoring module 4 is used to monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standard, it will be recycled and stored;

[0141] The parameter adjustment module 5 is used to cool the recycled water through a pre-configured cooling system when recycling the recycled water, and continuously detect the water quality parameters in real time, and automatically adjust the operating parameters of the electrolysis equipment and the wastewater treatment process according to the data feedback.

[0142] In summary, with the help of the above technical scheme of the present invention, the present invention can effectively identify and remove impurities such as suspended matter, organic matter and dissolved salt ions through multiple analyses and pretreatments of the original water source, thereby ensuring the purification of water quality, and also improving the efficiency of the subsequent electrolysis process, avoiding damage to the electrolysis equipment by pollutants; in the electrolysis process, hydrogen and oxygen are effectively separated and collected, hydrogen can be used as a clean energy source, and oxygen can be used for industrial production or other purposes. At the same time, the wastewater is deeply purified after being collected, realizing the recycling of water resources and reducing water use costs and environmental impacts; the multiple wastewater treatment schemes of the present invention, including ion exchange, membrane treatment technology and reverse osmosis, ensure the effective removal of harmful substances, and avoid secondary pollution through special treatment of the concentrate, meeting environmental protection requirements; real-time monitoring and automatic control systems are introduced at various stages, making the treatment process more intelligent, and being able to automatically adjust operating parameters according to water quality conditions, thereby improving the efficiency and accuracy of the entire system and reducing the need for manual intervention.

[0143] Although the present invention has been disclosed as above with preferred embodiments, the embodiments are merely examples for the convenience of description and are not intended to limit the present invention. Those skilled in the art may make several changes and modifications without departing from the spirit and scope of the present invention. The scope of protection claimed by the present invention shall be based on the claims.

Claims

1. A method for purifying circulating water by electrolysis of hydrogen energy, characterized in that: The hydrogen energy electrolysis circulating water purification method comprises the following steps: S1. Analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water, and pre-treat the original water source according to the identification results; S2. electrolyze the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collect wastewater generated during the electrolysis process; S3. Treat the collected wastewater by removing electrolyte residues, treating organic matter, removing heavy metal ions and deep purification; S4. Monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standards, recycle and store it; S5. When recycling recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously tested in real time. The operating parameters of the electrolysis equipment and wastewater treatment process are automatically adjusted based on data feedback.

2. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 1, characterized in that: The method of analyzing the original water source and pre-processing the original water source based on the analysis result comprises the following steps: S11. Collect water samples at different locations and time points of the original water source; S12. Test the water samples for physical, chemical and biological indicators, use a turbidity meter to identify the suspended solids content in the water, and measure the organic matter content by TOC; S13, testing the ion concentration of the water sample, analyzing the dissolved salt ions in the water using ion chromatography, and detecting other impurities at the same time; S14. Analyze the test data, evaluate the overall water quality, and identify indicators that exceed the standards; S15. Select appropriate equipment and process for treatment based on water quality analysis results.

3. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 2, characterized in that: The physical, chemical and biological index detection of the water sample, identification of the suspended solids content in the water by a turbidity meter, and determination of the organic matter content by TOC include the following steps: S121. After collecting the water sample, filter the water sample with filter paper or filter membrane to remove suspended particles; S122. According to the requirements of the ion chromatograph, the water sample is appropriately diluted to ensure that the ion concentration is within the detection range; S123, calibrating the ion chromatograph using the standard solution, and injecting the diluted water sample into the sample injection port of the ion chromatograph; S124, the water sample is sent into the chromatographic column by a high pressure pump, and the dissolved salt ions are separated in the chromatographic column according to their different charges and polarities; S125, the chromatographic column separates different ions in the water sample, passes through the conductivity detector or the ultraviolet detector in turn, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak; S126. Analyze the test results, generate a chromatogram, and use the standard curve to quantitatively calculate the peak area of ​​each ion to obtain the specific concentration of dissolved salt ions in the water.

4. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 3, characterized in that: The chromatographic column separates different ions in the water sample, passes through a conductivity detector or an ultraviolet detector in sequence, records the response peak of each ion, and determines the type and concentration of each ion according to the retention time and intensity of the response peak, including the following steps: S1251. The dissolved salt ions in the water sample are separated in the chromatographic column according to their charge, size and polarity characteristics; S1252. The separated ions are detected by a conductivity detector, the response peak of each ion is accurately recorded, and an ultraviolet detector is used for auxiliary analysis; S1253. Use the standard curve to accurately compare and quantitatively analyze the response peak area of ​​each ion to determine the specific concentration of each ion in the water sample.

5. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 4, characterized in that: The method of electrolyzing the pre-treated raw water source by using the pre-configured electrolysis equipment to generate hydrogen and oxygen, and collecting the wastewater generated during the electrolysis process comprises the following steps: S21, injecting the pre-treated raw water source into the electrolytic cell; S22, starting the pre-configured electrolysis equipment, applying current, starting the electrolysis process, and decomposing the molecules in the water into hydrogen and oxygen under the action of the electrodes; S23, collecting the generated hydrogen and oxygen respectively through a pre-configured gas collection device; S24. During the electrolysis process, collecting wastewater generated during the electrolysis process; S25. Monitor the operating parameters of the electrolysis equipment in real time and adjust the equipment operating status as needed.

6. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 1, characterized in that: The water quality treatment of the collected wastewater including removing electrolyte residues, treating organic matter, removing heavy metal ions and deep purification includes the following steps: S31, passing the collected wastewater through ion exchange resin or reverse osmosis equipment to remove residual electrolytes in the water; S32, treating organic matter in wastewater by biological filter; S33, removing heavy metal ions from wastewater by precipitation method; S34, use membrane treatment technology to remove tiny particles, pathogenic microorganisms and other impurities; S35. Monitor each step of wastewater treatment in real time and adjust the treatment parameters in a timely manner according to the test results.

7. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 6, characterized in that: The method of removing residual electrolytes in the collected wastewater by passing it through an ion exchange resin or a reverse osmosis device comprises the following steps: S311. Use pre-configured microfiltration equipment to remove large particles of impurities from wastewater; S312, removing dissolved electrolyte ions in the wastewater by cation and anion exchange resins; S313, using reverse osmosis equipment to remove remaining dissolved ions and impurities in wastewater under high pressure conditions; S314. Regularly use the regeneration solution to regenerate the ion exchange resin to restore its deionization capacity.

8. A method for purifying circulating water by electrolysis of hydrogen energy according to claim 7, characterized in that: The membrane treatment technology used to remove tiny particles, pathogenic microorganisms and other impurities includes the following steps: S341, remove tiny particles, bacteria and viruses in wastewater through ultrafiltration membrane, significantly reduce turbidity and microbial content; S342. Use nanofiltration membrane to remove organic matter, small molecule pollutants and some inorganic salts in wastewater; S343, during the membrane treatment process, real-time monitoring of membrane performance and effluent quality; S344, backwash the membrane regularly, using cleaning agents and pre-set flushing frequency to prevent membrane contamination; S345 collects the concentrated liquid produced during the membrane treatment process and performs specialized subsequent treatment based on its composition and properties.

9. The method for purifying circulating water by electrolysis of hydrogen energy according to claim 1, characterized in that: When recycling the recycled water, the recycled water is cooled by a pre-configured cooling system, and the water quality parameters are continuously detected in real time. The operating parameters of the electrolysis equipment and the wastewater treatment process are automatically adjusted according to the data feedback, including the following steps: S51, start the cooling system to cool the recycled water through a heat exchanger or a cooling tower; S52, real-time monitoring of water quality parameters including temperature, pH value, conductivity, and dissolved oxygen in the recovered water; S53, analyzing and recording the monitoring data to determine the trend of water quality changes; S54 automatically adjusts the operating parameters of the electrolysis equipment including current, voltage or electrolysis time according to the water quality monitoring data; S55. Automatically adjust the operating parameters of the wastewater treatment process including the amount of treatment agent added, treatment time, and flow rate according to the change in the water quality of the recycled water.

10. A hydrogen energy electrolysis circulating water purification system, used to implement the hydrogen energy electrolysis circulating water purification method according to any one of claims 1 to 9, characterized in that: The hydrogen energy electrolysis circulating water purification system includes: a water quality analysis and pretreatment module, an electrolysis water generation and wastewater collection module, a wastewater treatment and purification module, a water quality monitoring module and a parameter adjustment module; The water quality analysis and pretreatment module is used to analyze the water quality of the original water source, identify the suspended matter, organic matter, ion concentration and other impurities in the water, and pre-treat the original water source according to the identification results; An electrolytic water generation and wastewater collection module, which is used to electrolyze the pre-treated raw water source using a pre-configured electrolysis device to generate hydrogen and oxygen, and collect the wastewater generated during the electrolysis process; Wastewater treatment and purification module, used to treat the collected wastewater including removing electrolyte residues, treating organic matter, removing heavy metal ions and deep purification; The water quality monitoring module is used to monitor the water quality of the treated wastewater. If the water quality meets the preset reuse standards, it will be recycled and stored; The parameter adjustment module is used to cool the recycled water through a pre-configured cooling system when recycling the recycled water, and continuously detect water quality parameters in real time, and automatically adjust the operating parameters of the electrolysis equipment and wastewater treatment process according to data feedback.

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