Electrolysis water hydrogen production wastewater treatment flocculation reagent dosing experiment device

Abstract

The utility model relates to wastewater treatment technical field discloses electrolytic water hydrogen production wastewater treatment flocculation reagent dosing experimental device, including raw water storage unit, reagent preparation unit, reaction unit, sampling detection unit and data processing unit, and reaction unit communicates with raw water storage unit and reagent preparation unit, and sampling detection unit is connected with reaction unit, and data processing unit is connected with sampling detection unit signal, the utility model discloses when the flocculating agent of wastewater treatment or operating parameter changes, through sampling detection unit, the instantaneous water quality of reaction unit and mixed water quality and instantaneous effluent water quality and mixed effluent water quality are collected, and then through data collection unit, the experimental raw water consumption in experimental process, reagent dosing amount and water quality of inlet and outlet are exported analysis, through comparing the running mode under different parameters, the reagent dosing combination of economic, reasonable, efficient, stable operation is drawn, and the effluent water quality is more stable, and the operation cost is more economic.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an experimental device for adding flocculant to wastewater from water electrolysis for hydrogen production. Background Technology

[0002] Hydrogen energy plays an indispensable role in achieving "carbon peaking and carbon neutrality." As a green hub connecting renewable energy with end-use energy, hydrogen energy can realize the decarbonization of energy. Hydrogen production through water electrolysis is the best source of green hydrogen for future industrial and transportation decarbonization. The process of producing hydrogen through water electrolysis generates a large amount of clean wastewater, mainly composed of cooling tower wastewater and desalination station wastewater. The water quality is characterized by high salt content and high hardness, with fewer other pollutants. It is mainly treated by softening and precipitation.

[0003] Softening sedimentation refers to the addition of chemical agents, such as polyaluminum chloride (PAC), polyacrylamide (PAM), or other liquid flocculants, to the wastewater to be treated. Currently, there are many types of flocculants on the market, with varying treatment effects and economics. Furthermore, factors such as water temperature, pH value, turbidity, stirring intensity in the coagulation zone, stirring intensity in the flocculation zone, and operating mode in the sedimentation zone all affect the effluent quality, leading to decreased operational efficiency and unstable effluent quality.

[0004] In existing technologies, when changing flocculants or when operating parameters change, the agents are usually added directly to the wastewater treatment system, and the treatment effect of the agents and wastewater is evaluated. However, the water temperature, pH value, turbidity, stirring intensity and other factors during the reaction process can affect the quality of the effluent, leading to a decrease in operating economy and unstable effluent quality, which can easily result in increased operating costs or unstable water quality. Utility Model Content

[0005] In view of this, the present invention provides an experimental device for adding flocculant to wastewater treatment for hydrogen production from water electrolysis, in order to solve the problem that directly adding the agent to the wastewater treatment system in the prior art can easily lead to increased operating costs or unstable water quality.

[0006] This utility model provides an experimental device for adding flocculant to wastewater from water electrolysis for hydrogen production. The device includes a raw water storage unit, a reagent preparation unit, a reaction unit, a sampling and detection unit, and a data processing unit. The raw water storage unit is suitable for storing wastewater, the reagent preparation unit is suitable for preparing flocculant, the reaction unit is connected to the raw water storage unit and the reagent preparation unit, the sampling and detection unit is connected to the reaction unit, and the data processing unit is signal-connected to the sampling and detection unit.

[0007] Beneficial effects: In this utility model, when the flocculant or operating parameters of wastewater treatment change, the sampling and detection unit collects the instantaneous influent water quality, mixed influent water quality, instantaneous effluent water quality, and mixed effluent water quality of the reaction unit. Then, the data collection unit exports and analyzes the experimental raw water dosage, reagent dosage, and influent and effluent water quality during the experiment. Furthermore, by comparing the operating modes under different parameters, an economical, reasonable, efficient, and stable reagent dosage combination is obtained, making the effluent water quality more stable and the operating cost more economical.

[0008] In one optional embodiment, the raw water storage unit includes a storage tank, a heater, and a first stirrer. The storage tank is suitable for storing wastewater and has an outlet pipe that is connected to the reaction unit. The heater is located inside the storage tank, and the first stirrer is located inside the storage tank.

[0009] Beneficial effects: The heater in this invention can heat the wastewater to the optimal temperature range suitable for the flocculant reaction, thereby improving the efficiency and effect of sewage treatment. The first stirrer can make the water in the storage tank evenly mixed, thereby improving the accuracy of the experiment.

[0010] In one optional embodiment, the reagent preparation unit includes a reagent preparation tank, a second stirrer, and a weighing platform. The reagent preparation tank is suitable for preparing flocculant, and the reagent preparation tank is provided with a dispensing pipe that is connected to the reaction unit. The second stirrer is located inside the reagent preparation tank, and the weighing platform is located outside the reagent preparation tank.

[0011] Beneficial effects: This invention includes a second stirrer in the reagent preparation unit to facilitate uniform mixing of the flocculant in the preparation tank, and a weighing platform to facilitate measuring the required weight of the reagent, thereby improving the accuracy of the experiment.

[0012] In one optional embodiment, the reaction unit includes an inlet zone, a coagulation zone, a first flocculation zone, a second flocculation zone, a third flocculation zone, a sedimentation zone, and an outlet zone connected in sequence, with the inlet zone connected to the raw water storage unit and the reagent preparation unit.

[0013] In one optional embodiment, the sampling and detection unit includes a first detection element, a second detection element, a first sampler, and a second sampler. The first detection element is disposed in the water inlet area, the second detection element is disposed in the water outlet area, the first sampler is connected to the water inlet area, the second sampler is connected to the water outlet area, and the first detection element, the second detection element, the first sampler, and the second sampler are signal connected to the raw water storage unit, the reagent preparation unit, the reaction unit, and the data processing unit.

[0014] In one alternative embodiment, a third agitator is provided in the coagulation zone, a fourth agitator is provided in the first flocculation zone, a fifth agitator is provided in the second flocculation zone, and a sixth agitator is provided in the third flocculation zone.

[0015] Beneficial effects: This invention incorporates multiple stirrers within the reaction unit, which can thoroughly mix wastewater and reagents at each stage of the experiment to improve experimental results.

[0016] In one alternative implementation, a sedimentation plate is provided in the sedimentation zone.

[0017] Beneficial effects: The sedimentation plate of this utility model can divide the sedimentation area into multiple shallow layers. By utilizing the principle of "shallow sedimentation", the particle settling distance is reduced, the water flow path and particle settling conditions are optimized, and the sewage treatment efficiency is significantly improved.

[0018] In one alternative embodiment, the raw water storage unit further includes a first pump body and a first switch assembly, wherein the first pump body is disposed on the water outlet pipe and the first switch assembly is disposed on the water outlet pipe.

[0019] In one optional embodiment, the drug preparation unit further includes a drug inlet pipe, a second pump body, a third pump body, a second switch assembly, and a third switch assembly. The drug inlet pipe is connected to the drug preparation tank, the second pump body is disposed on the drug inlet pipe, the third pump body is disposed on the drug outlet pipe, the second switch assembly is disposed on the drug inlet pipe, and the third switch assembly is disposed on the drug outlet pipe.

[0020] Beneficial effects: The first pump body, second pump body and third pump body of this utility model can be used to control the flow and flow rate of raw water and reagents for experiments. The first switch assembly, second switch assembly and third switch assembly can open or close the liquid flow channel according to the water quality and the need to increase or decrease the reagents, so as to ensure the correct configuration and flow of the liquid.

[0021] In one alternative embodiment, the reagent preparation unit further includes a filter element, which is respectively disposed on the water outlet pipe and the reagent outlet pipe.

[0022] Beneficial effects: The present invention is equipped with filter elements on the inlet and outlet pipes, which can be used to filter out impurities and prevent them from entering the reaction unit. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an experimental device for adding flocculant to treat hydrogen production wastewater via water electrolysis, according to an embodiment of this utility model.

[0025] Figure 2 This is a schematic diagram of the removal reaction unit in an experimental device for adding flocculant to treat hydrogen production wastewater via water electrolysis, according to an embodiment of this utility model.

[0026] Figure 3 This is a schematic diagram of the reaction unit in an experimental apparatus for adding flocculant to treat hydrogen production wastewater via water electrolysis, according to an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Raw water storage unit; 101. Storage tank; 102. Outlet pipe; 103. Heater; 104. First stirrer; 105. First pump body; 106. First switch assembly; 1061. First electromagnetic flowmeter; 1062. First solenoid valve; 1063. First ball valve; 107. Filter element;

[0029] 2. Pharmaceutical preparation unit; 201. Dosing tank; 202. Discharge pipe; 203. Second stirrer; 204. Weighing platform; 205. Inlet pipe; 206. Second pump body; 207. Third pump body; 208. Second switch assembly; 2081. Second electromagnetic flowmeter; 2082. Second solenoid valve; 2083. Second ball valve; 209. Third switch assembly; 2091. Third electromagnetic flowmeter; 2092. Third solenoid valve; 2093. Third ball valve;

[0030] 3. Reaction Unit; 301. Inlet Zone; 302. Coagulation Zone; 3021. Third Agitator; 303. First Flocculation Zone; 3031. Fourth Agitator; 304. Second Flocculation Zone; 3041. Fifth Agitator; 305. Third Flocculation Zone; 3051. Sixth Agitator; 306. Sedimentation Zone; 3061. Sedimentation Plate; 307. Outlet Zone; 308. Drainage Pipe; 309. Sludge Discharge Pipe;

[0031] 4. Sampling and Detection Unit; 401. First Detection Component; 4011. First Water Hardness Tester; 4012. First pH Meter; 4013. First Turbidity Meter; 4014. First Thermometer; 402. Second Detection Component; 4021. Second Water Hardness Tester; 4022. Second pH Meter; 4023. Second Turbidity Meter; 4024. Second Thermometer; 403. First Sampler; 404. Second Sampler;

[0032] 5. Data processing unit; 501. Bracket; 6. Base. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In related technologies, hydrogen energy is a renewable energy source, and hydrogen can be produced by water electrolysis. Compared with other highly polluting and difficult-to-degrade wastewater, the wastewater from water electrolysis for hydrogen production is relatively clean, with fewer types of pollutants. It mainly consists of cooling tower wastewater and desalination station wastewater, characterized by high salt content and high hardness, with fewer other pollutants. It is mainly treated by softening and sedimentation.

[0035] Softening sedimentation refers to the addition of chemical agents, such as PAC, PAM, or other liquid mixed flocculants, to the wastewater to be treated. Currently, there are many types of flocculants on the market, with varying treatment effects and economics. Furthermore, factors such as water temperature, pH value, turbidity, stirring intensity in the coagulation zone, stirring intensity in the flocculation zone, and operating mode in the sedimentation zone all affect the effluent quality, leading to decreased operational efficiency and unstable effluent quality.

[0036] The following is combined Figures 1 to 3 The following describes embodiments of the present invention.

[0037] According to embodiments of the present invention, such as Figure 1 As shown, an experimental device for adding flocculant to treat wastewater from water electrolysis for hydrogen production is provided. The device includes a raw water storage unit 1, a reagent preparation unit 2, a reaction unit 3, a sampling and detection unit 4, and a data processing unit 5. The raw water storage unit 1 is suitable for storing wastewater, the reagent preparation unit 2 is suitable for preparing flocculant, the reaction unit 3 is connected to the raw water storage unit 1 and the reagent preparation unit 2, the sampling and detection unit 4 is connected to the reaction unit 3, and the data processing unit 5 is signal-connected to the sampling and detection unit 4.

[0038] Specifically, this embodiment does not specifically limit the application scope of the experimental device for adding flocculant to treat wastewater from water electrolysis for hydrogen production. For example, in this embodiment, the experimental device for adding flocculant to treat wastewater from water electrolysis for hydrogen production is used for experiments on wastewater treatment from water electrolysis for hydrogen production.

[0039] In this embodiment, the raw water storage unit 1 stores the wastewater used in the experiment, the reagent preparation unit 2 prepares the flocculant, the reaction unit 3 is connected to both the raw water storage unit 1 and the reagent preparation unit 2, and the sampling and detection unit 4 is connected to the reaction unit 3 to acquire various experimental data and input the data into the data processing unit 5. During the experiment, the required wastewater and flocculant are respectively delivered to the reaction unit 3. According to different experimental requirements, the data collection unit exports and analyzes the experimental raw water usage, reagent dosage, and influent and effluent water quality data acquired during the experiment. This device facilitates offline experiments by comparing different operating modes under different parameters to determine an economical, reasonable, efficient, and stable reagent dosage combination, resulting in more stable effluent water quality and more economical operating costs, while also avoiding the impact of online experiments on the treatment system.

[0040] In this invention, when the flocculant or operating parameters of the wastewater treatment change, the sampling and detection unit 4 collects the instantaneous influent water quality, mixed influent water quality, instantaneous effluent water quality, and mixed effluent water quality of the reaction unit 3. Then, the data collection unit exports and analyzes the experimental raw water dosage, reagent dosage, and influent and effluent water quality during the experiment. Furthermore, by comparing the operating modes under different parameters, an economical, reasonable, efficient, and stable reagent dosage combination is obtained, making the effluent water quality more stable and the operating cost more economical.

[0041] In one embodiment, such as Figure 2 As shown, the raw water storage unit 1 includes a storage tank 101, a heater 103 and a first stirrer 104. The storage tank 101 is suitable for storing wastewater. The storage tank 101 is provided with a water outlet pipe 102, which is connected to the reaction unit 3. The heater 103 is installed inside the storage tank 101, and the first stirrer 104 is installed inside the storage tank 101.

[0042] Specifically, in this embodiment, the storage tank 101 is not specifically limited. For example, in this embodiment, the storage tank 101 has a cylindrical structure with a cavity inside for storing wastewater. One end of the water outlet pipe 102 is connected to the bottom of the storage tank 101, and the other end is connected to the reaction unit 3. A heater 103 is provided inside the storage tank 101 for auxiliary heating of the raw water. A first stirrer 104 is provided inside the storage tank 101.

[0043] The heater 103 in this invention can heat the wastewater to the optimal temperature range suitable for the flocculant reaction, thereby improving the efficiency and effect of wastewater treatment. The first stirrer 104 can make the water in the storage tank 101 mix evenly, thereby improving the accuracy of the experiment.

[0044] In one embodiment, such as Figure 2As shown, the reagent preparation unit 2 includes a reagent preparation tank 201, a second stirrer 203 and a weighing platform 204. The reagent preparation tank 201 is suitable for preparing flocculant. The reagent preparation tank 201 is provided with a drug outlet pipe 202, which is connected to the reaction unit 3. The second stirrer 203 is located inside the reagent preparation tank 201, and the weighing platform 204 is located outside the reagent preparation tank 201.

[0045] Specifically, in this embodiment, the dosing tank 201 is not specifically limited. For example, in this embodiment, the dosing tank 201 adopts a cylindrical structure, and its interior is a cavity for storing flocculant. The weighing platform 204 is placed outside the dosing tank 201 for weighing the added drug. The second stirrer 203 is set inside the dosing tank 201 for mixing flocculant. One end of the drug outlet pipe 202 is connected to the bottom of the dosing tank 201, and the other end is connected to the reaction unit 3.

[0046] In this embodiment, the storage tank 101, the dispensing tank 201, and the weighing platform 204 can be integrated and mounted on the fixed base 6; alternatively, they can be mounted separately according to actual site requirements and available space, without limitation. The data processing unit 5 has a support 501 at its bottom, which is mounted on the base 6.

[0047] This invention includes a second stirrer 203 in the reagent preparation unit 2 to facilitate uniform mixing of the flocculant in the reagent preparation tank 201, and a weighing platform 204 to facilitate measuring the required weight of the reagent, thereby improving the accuracy of the experiment.

[0048] In one embodiment, such as Figure 3 As shown, the reaction unit 3 includes an inlet zone 301, a coagulation zone 302, a first flocculation zone 303, a second flocculation zone 304, a third flocculation zone 305, a sedimentation zone 306, and an outlet zone 307 connected in sequence. The inlet zone 301 is connected to the raw water storage unit 1 and the reagent preparation unit 2.

[0049] Specifically, in this embodiment, the reaction unit 3 is not specifically limited. For example, in this embodiment, the reaction unit 3 is a cubic tank. The tank is provided with an inlet zone 301, a coagulation zone 302, a first flocculation zone 303, a second flocculation zone 304, a third flocculation zone 305, a sedimentation zone 306, and an outlet zone 307 that are connected in sequence. The inlet zone 301 is located at one end of the tank. The coagulation zone 302 is adjacent to the first flocculation zone 303 and the inlet zone 301. The second flocculation zone 304 is adjacent to the coagulation zone 302. The third flocculation zone 305 is adjacent to the first flocculation zone 303. The second flocculation zone 304 is adjacent to the coagulation zone 302. The third flocculation zone 305 is adjacent to the first flocculation zone 303. The second flocculation zone 304 is adjacent to the third flocculation zone 305. The sedimentation zone 306 is adjacent to the second flocculation zone 304 and the third flocculation zone 305. The outlet zone 307 is located at the other end of the tank and is adjacent to the sedimentation zone 306.

[0050] In this embodiment, the inlet zone 301 is connected to the storage tank 101 and the reaction tank. The wastewater used in the experiment is transported to the coagulation zone 302 for mixing. The mixed water then passes through the first flocculation zone 303, the second flocculation zone 304, and the third flocculation zone 305 in sequence, causing the fine suspended solids and colloidal particles that are difficult to settle in the water to aggregate into larger flocs (lumps), enhancing their settling performance. The formed flocs settle rapidly under gravity, thereby reducing the turbidity of the water and removing suspended solids and some dissolved pollutants. The settled water is then transported to the sedimentation zone 306 for sedimentation, where suspended solids in the wastewater settle to the bottom by gravity, reducing the concentration of pollutants in subsequent treatment processes. The settled water is finally transported to the effluent zone 307, which is equipped with a drain pipe 308 at the bottom to discharge the treated water. The sedimentation zone 306 is equipped with a sludge discharge pipe 309 at the bottom.

[0051] In one embodiment, such as Figure 3 As shown, the sampling and detection unit 4 includes a first detection element 401, a second detection element 402, a first sampler 403, and a second sampler 404. The first detection element 401 is disposed in the water inlet zone 301, and the second detection element 402 is disposed in the water outlet zone 307. The first sampler 403 is connected to the water inlet zone 301, and the second sampler 404 is connected to the water outlet zone 307. The first detection element 401, the second detection element 402, the first sampler 403, and the second sampler 404 are connected to the raw water storage unit 1, the reagent preparation unit 2, the reaction unit 3, and the data processing unit 5 via signal connections.

[0052] Specifically, in this embodiment, the first detection element 401 is installed at the stable water flow point on the side wall of the wastewater inlet end of the inlet zone 301 to feed back the detection results of the wastewater quality to be treated to the data collection unit. The data collection unit can control the dosage or concentration of the reagent preparation unit 2 and the raw water storage unit 1, as well as the inlet water volume. The second detection element 402 is installed at the stable water flow point on the side wall of the outlet zone 307 to detect the changes in the effluent quality of the outlet zone 307 in real time and feed back the detection results to the data collection unit. The first sampler 403 is installed at the stable water flow point on the side wall of the wastewater inlet end of the inlet zone 301 to collect wastewater samples to be treated, facilitating manual detection of instantaneous and mixed water samples. The second sampler 404 is installed at the stable water flow point on the side wall of the outlet zone 307 to collect treated water samples, facilitating manual detection of instantaneous and mixed water samples. All detection results are used for experimental comparison and analysis.

[0053] In this embodiment, to facilitate control of the dosing concentration based on the wastewater quality, the reagent preparation unit 2 can be configured with either a high-concentration reagent or a low-concentration reagent. By varying the concentration of the reagent, the concentration of the reagent during the experiment can be increased or decreased. For example, when the wastewater quality is poor, the reagent concentration in the reaction unit 3 can be increased by increasing the input of the high-concentration reagent.

[0054] In this embodiment, the first detection element 401 and the second detection element 402 are not specifically limited. For example, in this embodiment, the first detection element 401 includes a first water hardness meter 4011, a first pH meter 4012, a first turbidity meter 4013 and a first thermometer 4014, and the second detection element 402 includes a second water hardness meter 4021, a second pH meter 4022, a second turbidity meter 4023 and a second thermometer 4024, so as to detect water quality in real time and feed it back to the data collection unit for real-time recording of instantaneous water quality data for experimental analysis.

[0055] The water hardness meter is used to measure the total hardness of water, which is the total amount of alkaline salts in the water. For example, a water hardness between 100 mg / L and 200 mg / L is considered suitable. If the water hardness is too high, the concentration of the flocculant needs to be increased or softening treatment should be performed. Excessively high or low water hardness can affect the solubility of elements in the water, thus affecting the purification effect of the chemical flocculant and consequently the quality of the effluent.

[0056] A pH meter is used to measure the pH value of water, that is, the acidity or alkalinity of the water. For example, a pH value between 6.5 and 8.5 is considered suitable. A turbidity meter is mainly used to measure the turbidity of water, that is, the concentration of impurities in the water. The lower the turbidity, the better the water quality.

[0057] In this embodiment, the first sampler 403 and the second sampler 404 are water quality samplers. The water quality samplers are used to collect instantaneous water samples and mixed water samples from the water body. For example, if hourly water samples need to be collected during the experiment, the sampler can be set to collect samples hourly and save them separately. The samples are then retrieved after the entire sampling cycle is completed. Similarly, if a 24-hour mixed sample needs to be collected during the experiment, the sampler can be set to collect samples in 24-hour mixed sample format. The samples are then retrieved for analysis after the entire sampling cycle is completed.

[0058] In one embodiment, such as Figure 3 As shown, a third agitator 3021 is provided in the coagulation zone 302, a fourth agitator 3031 is provided in the first flocculation zone 303, a fifth agitator 3041 is provided in the second flocculation zone 304, and a sixth agitator 3051 is provided in the third flocculation zone 305.

[0059] Specifically, in this embodiment, the third stirrer 3021 is positioned directly above the coagulation zone 302 to accelerate the mixing speed of the reagent and the experimental raw water. The fourth stirrer 3031, the fifth stirrer 3041, and the sixth stirrer 3051 are respectively positioned directly above the first flocculation zone 303, the second flocculation zone 304, and the third flocculation zone 305. The fourth stirrer 3031, the fifth stirrer 3041, and the sixth stirrer 3051 are used to control the stirring intensity of the flocculation zone, and the formation effect of floc in the wastewater is controlled by operating at different low speeds. The third stirrer 3021, the fourth stirrer 3031, the fifth stirrer 3041, and the sixth stirrer 3051 are respectively connected to the data collection unit. The data collection unit can control the rotation speed of the third stirrer 3021, the fourth stirrer 3031, the fifth stirrer 3041, and the sixth stirrer 3051, and collect their rotation speeds for experimental comparison and analysis.

[0060] In this embodiment, the stirrer is not specifically limited. The stirrer can be a liquid stirring structure that moves the liquid from top to bottom, thereby achieving liquid flow and enhancing the thorough mixing and reaction of the chemical reagents and wastewater. The stirrer can be positioned directly above the reaction zone.

[0061] For example, the agitator includes a driver and rotating blades. The driver drives the rotating blades to rotate, and the rotating blades create a rotating vortex during rotation, pushing the liquid from the top to the bottom of the reaction zone. The driver can be a motor. It should be noted that adjusting the rotational speed and the number of blades can control the degree of mixing of the liquid in the reaction zone. The number of agitators can be one or more, and this application does not limit this. For example, there can be two agitators, respectively positioned directly above the coagulation zone 302, the first flocculation zone 303, the second flocculation zone 304, and the third flocculation zone 305.

[0062] In some embodiments, the agitator may be a flow mixer, and this application does not limit this.

[0063] This invention incorporates multiple stirrers within the reaction unit 3 to ensure thorough mixing of wastewater and reagents at each stage of the experiment, thereby improving experimental results.

[0064] In one embodiment, such as Figure 3 As shown, a sedimentation plate 3061 is provided in the sedimentation zone 306.

[0065] Specifically, the sedimentation plate 3061 is not specifically limited in this embodiment. For example, in this embodiment, the sedimentation plate 3061 is an inclined tube sedimentation plate. By setting the inclined tube sedimentation plate to provide a larger settling area, the suspended particles in the wastewater slide down the sedimentation plate 3061 under the action of gravity, thereby achieving efficient sedimentation.

[0066] The present invention sets up a sedimentation plate 3061 to divide the sedimentation zone 306 into multiple shallow layers. By utilizing the principle of "shallow sedimentation", the particle settling distance is reduced, the water flow path and particle settling conditions are optimized, and the sewage treatment efficiency is significantly improved.

[0067] In one embodiment, such as Figure 2 As shown, the raw water storage unit 1 also includes a first pump body 105 and a first switch assembly 106. The first pump body 105 is disposed on the water outlet pipe 102, and the first switch assembly 106 is disposed on the water outlet pipe 102.

[0068] Specifically, in this embodiment, the first pump body 105 is disposed on the side of the water outlet pipe 102 near the storage tank 101, and the first switch assembly 106 is disposed on the side of the water outlet pipe 102 near the reaction unit 3.

[0069] In one embodiment, such as Figure 2 As shown, the drug preparation unit 2 also includes a drug inlet pipe 205, a second pump body 206, a third pump body 207, a second switch assembly 208, and a third switch assembly 209. The drug inlet pipe 205 is connected to the drug preparation tank 201. The second pump body 206 is installed on the drug inlet pipe 205, the third pump body 207 is installed on the drug outlet pipe 202, the second switch assembly 208 is installed on the drug inlet pipe 205, and the third switch assembly 209 is installed on the drug outlet pipe 202.

[0070] Specifically, in this embodiment, one end of the inlet pipe 205 is connected to the dispensing tank 201, and the other end is connected to the weighing platform 204. The second pump body 206 is located on the side of the inlet pipe 205 near the dispensing tank 201, and the second switch assembly 208 is located on the side of the inlet pipe 205 near the weighing platform 204. The third pump body 207 is located on the side of the outlet pipe 202 near the dispensing tank 201, and the third switch assembly 209 is located on the side of the outlet pipe 202 near the reaction unit 3.

[0071] In this embodiment, the weighing platform 204 inputs the medicine into the preparation tank 201 through the medicine inlet pipe 205. A second pump 206 is installed on the medicine inlet pipe 205. The weighing platform 204 is signal-connected to the data collection unit. When the data collection unit detects that the weighing platform 204 has reached a preset weight value, it controls the second pump 206 to turn on, dispensing the medicine into the preparation tank 201. In some other embodiments, the weighed medicine can also be manually added to the preparation tank 201.

[0072] In this embodiment, the first switch assembly 106, the second switch assembly 208, and the third switch assembly 209 are respectively installed on the water outlet pipe 102 of the storage tank 101 and the inlet pipe 205 and outlet pipe 202 of the reagent preparation tank 201, for controlling the flow and flow rate of the experimental raw water and reagents. The first switch assembly 106, the second switch assembly 208, and the third switch assembly 209 can open or close the liquid flow channels according to water quality conditions and reagent addition / reduction requirements to ensure proper liquid preparation and flow. The first switch assembly 106, the second switch assembly 208, and the third switch assembly 209 can achieve liquid control and regulation through devices such as solenoid valves, pneumatic valves, and pneumatic pumps; this application does not impose any limitations on this.

[0073] In this embodiment, the first switch assembly 106 includes a first ball valve 1063 and a first solenoid valve 1062, the second switch assembly 208 includes a second ball valve 2083 and a second solenoid valve 2082, and the third switch assembly 209 includes a third ball valve 2093 and a third solenoid valve 2092. In this embodiment, the first ball valve 1063, the second ball valve 2083, and the third ball valve 2093 are all manual ball valve switches.

[0074] In practice, the manual ball valve switch is a normally open switch, meaning that the valve passage is always open when no force is applied. When experimental requirements necessitate rotation of the manual ball valve switch to a specific angle, the valve passage will close, thus preventing liquid flow. The solenoid valve switch can be opened or closed via control signals from the data acquisition unit, facilitating the opening or closing of the liquid flow channel based on water quality conditions and reagent adjustments, thereby achieving automatic control during the experiment.

[0075] In this embodiment, the first switch assembly 106 further includes a first electromagnetic flowmeter 1061, the second switch assembly 208 further includes a second electromagnetic flowmeter 2081, and the third switch assembly 209 further includes a third electromagnetic flowmeter 2091. The first electromagnetic flowmeter 1061 is installed on the water outlet pipe 102, the second electromagnetic flowmeter 2081 is installed on the medicine inlet pipe 205, and the third electromagnetic flowmeter 2091 is installed on the medicine outlet pipe 202. They are used to measure the outflow rate of medicine or the inflow rate of water at the outlet and inlet of the storage tank 101 and the dispensing tank 201. The first electromagnetic flowmeter 1061 is connected to the first solenoid valve 1062, the first pump body 105, and the data collection unit. The second electromagnetic flowmeter 2081 is connected to the second solenoid valve 2082, the second pump body 206, and the data collection unit. The third electromagnetic flowmeter 2091 is connected to the third solenoid valve 2092, the third pump body 207, and the data collection unit.

[0076] In practice, the electromagnetic flowmeter is used to detect the outflow of medicine or the inflow of water at the outlet and inlet of the dosing tank 201 and the storage tank 101, so that the flow channels of the liquid can be opened or closed by the data collection unit according to the water quality and the need to increase or decrease the amount of medicine.

[0077] This utility model is equipped with a first pump body 105, a second pump body 206, and a third pump body 207, which can be used to control the flow and flow rate of raw water and reagents for experiments. The first switch assembly 106, the second switch assembly 208, and the third switch assembly 209 can open or close the liquid flow channel according to the water quality and the need to increase or decrease the reagents, so as to ensure the correct configuration and flow of the liquid.

[0078] In one embodiment, such as Figure 2 As shown, the reagent preparation unit 2 also includes a filter element 107, which is respectively installed on the water outlet pipe 102 and the medicine outlet pipe 202.

[0079] Specifically, in this embodiment, the water outlet pipe 102, the medicine inlet pipe 205, and the medicine outlet pipe 202 are all equipped with filter elements 107, which are used to filter impurities. In this embodiment, the filter element 107 is not specifically limited. For example, in this embodiment, the filter element 107 is a Y-type filter.

[0080] The present invention provides filters 107 on the inlet pipe 205 and the outlet pipe 202, which can be used to filter out impurities and prevent them from entering the reaction unit 3.

[0081] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An electrolysis water hydrogen production wastewater treatment flocculation reagent dosing experiment device, characterized in that, include: Raw water storage unit (1), wherein the raw water storage unit (1) is adapted to store wastewater; A reagent preparation unit (2) is adapted to prepare flocculant agents; The reaction unit (3) is connected to the raw water storage unit (1) and the reagent preparation unit (2); A sampling and detection unit (4) is connected to the reaction unit (3); The data processing unit (5) is signal-connected to the sampling and detection unit (4).

2. The water electrolysis hydrogen production wastewater treatment flocculating agent dosing experiment device according to claim 1, characterized in that, The raw water storage unit (1) includes: Storage tank (101), the storage tank (101) is suitable for storing wastewater, the storage tank (101) is provided with a water outlet pipe (102), the water outlet pipe (102) is connected to the reaction unit (3); A heater (103) is disposed inside the storage tank (101); A first agitator (104) is disposed inside the storage tank (101).

3. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 2, characterized in that, The pharmaceutical preparation unit (2) includes: A dosing tank (201) is provided, which is suitable for preparing flocculant. The dosing tank (201) is provided with a dispensing pipe (202), which is connected to the reaction unit (3). A second stirrer (203) is disposed inside the medicine preparation tank (201); Weighing platform (204) is located outside the dispensing tank (201).

4. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 1, characterized in that, The reaction unit (3) includes an inlet zone (301), a coagulation zone (302), a first flocculation zone (303), a second flocculation zone (304), a third flocculation zone (305), a sedimentation zone (306), and an outlet zone (307) connected in sequence. The inlet zone (301) is connected to the raw water storage unit (1) and the reagent preparation unit (2).

5. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 4, characterized in that, The sampling and detection unit (4) includes: The first detection element (401) is disposed in the water inlet area (301); The second detection element (402) is disposed in the water outlet area (307); A first sampler (403) is connected to the water inlet area (301); The second sampler (404) is connected to the water outlet area (307). The first detection element (401), the second detection element (402), the first sampler (403) and the second sampler (404) are signal connected to the raw water storage unit (1), the reagent preparation unit (2), the reaction unit (3) and the data processing unit (5).

6. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 4 or 5, characterized in that, The coagulation zone (302) is equipped with a third agitator (3021), the first flocculation zone (303) is equipped with a fourth agitator (3031), the second flocculation zone (304) is equipped with a fifth agitator (3041), and the third flocculation zone (305) is equipped with a sixth agitator (3051).

7. The experimental apparatus for adding flocculant to hydrogen production wastewater from water electrolysis according to claim 4 or 5, characterized in that, The sedimentation zone (306) is provided with a sedimentation plate (3061).

8. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 2, characterized in that, The raw water storage unit (1) also includes: The first pump body (105) is disposed on the water outlet pipe (102); A first switch assembly (106) is disposed on the water outlet pipe (102).

9. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 3, characterized in that, The drug preparation unit (2) further includes: A drug inlet pipe (205) is connected to the drug dispensing tank (201); The second pump body (206) is disposed on the drug inlet pipe (205); The third pump body (207) is disposed on the drug outlet pipe (202); A second switch assembly (208) is disposed on the drug inlet tube (205); A third switch assembly (209) is disposed on the drug outlet tube (202).

10. The experimental apparatus for adding flocculant to wastewater from water electrolysis for hydrogen production according to claim 3, characterized in that, The drug preparation unit (2) further includes: The filter element (107) is respectively installed on the water outlet pipe (102) and the medicine outlet pipe (202).

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