A method, apparatus, and computer-readable medium for controlling the treatment of fluoride-containing wastewater.

Abstract

This invention discloses a method, apparatus, and computer-readable medium for controlling the treatment of fluoride-containing wastewater. The method includes: acquiring detection data of a first fluoride-containing wastewater in the input pipeline of a primary defluorination device; adding a defluorination-related agent corresponding to the detection data to the primary defluorination device to generate a first trigger command; generating a second fluoride-containing wastewater based on a first reaction time corresponding to the first trigger command; and conveying the second fluoride-containing wastewater to a secondary defluorination device; adding a preset defluorination-related agent to the secondary defluorination device to generate a second trigger command; and, based on a second reaction time corresponding to the second trigger command, outputting the third fluoride-containing wastewater to a clear water tank when the third fluoride-containing wastewater meets a first preset condition. Therefore, this embodiment, through online detection and real-time feedback data, can not only accurately control the dosage of defluorination-related agents, saving subsequent agent treatment costs, but also reduce the fluoride content in high-fluoride water to below 15 mg / L.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and particularly relates to a method, apparatus and computer-readable medium for controlling the treatment of fluoride-containing wastewater. Background Technology

[0002] Industrial wastewater is characterized by numerous pollutants, large fluctuations in water quality, high toxicity of pollutants, and large discharge volumes. Therefore, it is necessary to determine appropriate process solutions based on specific water quality. Furthermore, the treatment of industrial wastewater generates a large amount of sludge, which has a complex composition and is difficult to treat. If not properly treated, it can cause secondary pollution. Fluoride-containing wastewater is one of the important sources of industrial wastewater, involving industrial production processes such as metal smelting, electrolytic aluminum, fluorochemicals, fertilizers, and pharmaceuticals. Fluoride levels in this wastewater range from tens to tens of thousands of milligrams per liter. Generally, fluoride levels exceeding 1000 mg / L are generally defined as high-fluoride water. The fluorochemical industry is a serious polluter, especially producing large quantities of high-concentration fluoride-containing industrial wastewater. The treatment of this type of fluoride-containing wastewater is a major challenge in fluoride wastewater treatment.

[0003] Currently, the main methods for treating fluoride-containing industrial wastewater both domestically and internationally include precipitation, adsorption, electrochemical methods, reverse osmosis, and ion exchange, with chemical precipitation being the most widely used. In practical operation, calcium salt coagulation and sedimentation processes are commonly used for treating medium- to high-concentration fluoride-containing industrial wastewater. However, this process can only barely achieve discharge standards under conditions requiring increased dosage and stricter manual monitoring. Furthermore, the traditional calcium salt coagulation and sedimentation process for treating high-concentration fluoride-containing industrial wastewater also suffers from drawbacks such as large amounts of calcium fluoride sludge production, high water content, limited comprehensive utilization, and difficulties in treatment and disposal. Traditional calcium-based treatment of high-fluoride water has the following disadvantages:

[0004] (1) Poor defluorination effect. After primary calcium salt precipitation treatment, the fluoride concentration of fluoride-containing industrial wastewater can only be reduced to 20-30 mg / L. Even with excessive addition of lime slurry based on the common ion effect, the primary calcium salt precipitation process alone cannot achieve the wastewater discharge standard (≤10 mg / L). Therefore, secondary coagulation and sedimentation treatment is necessary. Moreover, in order to ensure the treatment effect, excessive coagulant or related defluorination agents need to be added during the secondary coagulation and sedimentation process so as to further reduce the fluoride ion concentration through the adsorption of fluoride ions by the hydrolysis products of the coagulant.

[0005] (2) The utilization rate of lime is relatively low and the sludge production is large. Due to the inherent characteristics of lime, its solubility is relatively low. In the calcium salt coagulation and sedimentation process, calcium salt is mainly added in the form of lime milk. However, the low solubility of lime milk (mainly calcium hydroxide) leads to incomplete reaction between calcium and fluorine, resulting in a large amount of unreacted lime entering the sludge through coagulation and sedimentation, increasing the sludge production and causing the sludge to have a high water content, making it difficult to utilize.

[0006] (3) Excessive coagulant addition results in high suspended solids concentration in effluent. To ensure treatment effectiveness, excessive coagulant is added during the coagulation and sedimentation process. This leads to loose sludge flocs that are difficult to settle, increasing the suspended solids concentration in the effluent.

[0007] Given the drawbacks of lime treatment for high-fluoride wastewater, there is an urgent need to develop a new treatment method and process for high-fluoride industrial wastewater. Summary of the Invention

[0008] To address the aforementioned problems in the existing technology, embodiments of the present invention provide a method, apparatus, and computer-readable medium for controlling the treatment of fluoride-containing wastewater. This not only enables automated treatment of high-fluoride wastewater, reducing the fluoride content in high-fluoride water to below 15 mg / L, but also reduces sludge discharge and improves the treatment efficiency of fluoride-containing wastewater.

[0009] According to a first aspect of the present invention, a method for controlling the treatment of fluoride-containing wastewater is provided. The method includes: acquiring detection data of a first fluoride-containing wastewater in the input pipeline of a primary defluorination device; wherein the detection data is used to indicate the molar ratio of sodium ions to fluoride ions in the first fluoride-containing wastewater; adding a defluorination-related agent corresponding to the detection data to the primary defluorination device, generating a first trigger command; generating a second fluoride-containing wastewater based on the triggering of a first reaction time corresponding to the first trigger command; and conveying the second fluoride-containing wastewater to a secondary defluorination device; adding a preset weight of defluorination-related agent to the secondary defluorination device, generating a second trigger command; and, based on the triggering of a second reaction time corresponding to the second trigger command, outputting the third fluoride-containing wastewater to a clear water tank when it is determined that the third fluoride-containing wastewater treated by the secondary defluorination device meets a first preset condition; wherein the defluorination-related agent includes at least an aluminum salt.

[0010] Optionally, the method further includes: acquiring detection data of pretreated fluoride-containing wastewater in the input pipeline of the fluoride-containing wastewater regulating tank; determining whether the detection data of the pretreated fluoride-containing wastewater meets a second preset condition; if the determination result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, then adding sodium salt corresponding to the detection data to the fluoride-containing wastewater regulating tank, and acquiring detection data of the pretreated fluoride-containing wastewater in the output pipeline of the fluoride-containing wastewater regulating tank; until the determination result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, then ending the operation of adding sodium salt to the fluoride-containing wastewater regulating tank, generating the first fluoride-containing wastewater; if the determination result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, then identifying the pretreated fluoride-containing wastewater as the first fluoride-containing wastewater; and controlling the fluoride-containing wastewater regulating tank to transport the first fluoride-containing wastewater to the primary defluorination equipment.

[0011] Optionally, the step of adding a defluorination-related agent corresponding to the detection data to the primary defluorination equipment and generating a first trigger command includes: controlling the dosing device to add an aluminum salt corresponding to the detection data to the primary defluorination equipment; generating a fourth fluoride-containing wastewater based on a third reaction time trigger; controlling the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; generating a fifth fluoride-containing wastewater based on a fourth reaction time trigger; and controlling the dosing device to add a preset flocculant to the fifth fluoride-containing wastewater, thereby generating the first trigger command.

[0012] Optionally, the step of adding a preset weight of defluorination-related agents to the secondary defluorination equipment and generating a second trigger command includes: controlling the dosing device to add a preset weight of aluminum salt to the secondary defluorination equipment; and generating a sixth fluoride-containing wastewater based on a third reaction time trigger; controlling the dosing device to add a preset pH adjuster to the sixth fluoride-containing wastewater; and generating a seventh fluoride-containing wastewater based on a fourth reaction time trigger; and controlling the dosing device to add a preset flocculant to the seventh fluoride-containing wastewater, thereby generating a second trigger command.

[0013] Optionally, the step of triggering the third fluoride-containing wastewater to a clear water tank based on the second reaction time corresponding to the second triggering command, when it is determined that the third fluoride-containing wastewater treated by the secondary defluorination equipment meets the first preset condition, includes: generating the third fluoride-containing wastewater based on the second reaction time corresponding to the second triggering command; obtaining the fluoride content in the third fluoride-containing wastewater; adjusting the amount of aluminum salt added in the secondary defluorination equipment when the fluoride content does not meet the first preset condition, until the fluoride content in the third fluoride-containing wastewater meets the first preset condition; maintaining the preset weight of aluminum salt added in the secondary defluorination equipment when the fluoride content meets the first preset condition; and outputting the third fluoride-containing wastewater to a clear water tank.

[0014] According to a second aspect of the present invention, a treatment apparatus for controlling fluoride-containing wastewater is also provided. The apparatus includes: a first acquisition module for acquiring detection data of a first fluoride-containing wastewater in the input pipeline of a primary defluorination device; wherein the detection data is used to indicate the molar ratio of sodium ions to fluoride ions in the first fluoride-containing wastewater; a first generation module for adding a defluorination-related agent corresponding to the detection data to the primary defluorination device and generating a first trigger command; a second generation module for generating a second fluoride-containing wastewater based on a first reaction time corresponding to the first trigger command and conveying the second fluoride-containing wastewater to a secondary defluorination device; a third generation module for adding a preset weight of defluorination-related agent to the secondary defluorination device and generating a second trigger command; and a first determination module for outputting the third fluoride-containing wastewater to a clear water tank when the third fluoride-containing wastewater treated by the secondary defluorination device meets a first preset condition, based on a second reaction time corresponding to the second trigger command; wherein the defluorination-related agent includes at least aluminum salts.

[0015] Optionally, the device further includes: a second acquisition module, used to acquire detection data of pretreated fluoride-containing wastewater in the input pipeline of the fluoride-containing wastewater regulating tank; a judgment module, used to judge whether the detection data of the pretreated fluoride-containing wastewater meets a second preset condition; an addition module, used to add sodium salt corresponding to the detection data to the fluoride-containing wastewater regulating tank if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, and acquire detection data of the pretreated fluoride-containing wastewater in the output pipeline of the fluoride-containing wastewater regulating tank; until the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, the operation of adding sodium salt to the fluoride-containing wastewater regulating tank ends, generating the first fluoride-containing wastewater; a second determination module, used to determine the pretreated fluoride-containing wastewater as the first fluoride-containing wastewater if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition; and a conveying module, used to control the fluoride-containing wastewater regulating tank to convey the first fluoride-containing wastewater to the primary defluorination equipment.

[0016] Optionally, the first generation module includes: a first generation unit, used to control the dosing device to add aluminum salt corresponding to the detection data to the primary defluorination device; and to generate a fourth fluoride-containing wastewater based on a third reaction time trigger; a second generation unit, used to control the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; and to generate a fifth fluoride-containing wastewater based on a fourth reaction time trigger; and a third generation unit, used to control the dosing device to add a preset flocculant to the fifth fluoride-containing wastewater and generate a first trigger command.

[0017] According to a third aspect of the present invention, an electronic device is also provided, the electronic device comprising: one or more processors; and a memory for storing one or more programs, which, when executed by the one or more processors, cause the one or more processors to perform the method as described in the first aspect.

[0018] According to a fourth aspect of the present invention, a computer-readable medium is also provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the method described in the first aspect.

[0019] This invention provides a method, apparatus, and computer-readable medium for controlling the treatment of fluoride-containing wastewater. The method includes: first, acquiring detection data of a first fluoride-containing wastewater in the input pipeline of a primary defluorination device; wherein the detection data indicates the molar ratio of sodium ions to fluoride ions in the first fluoride-containing wastewater; second, adding a defluorination-related agent corresponding to the detection data to the primary defluorination device, generating a first trigger command; then, generating a second fluoride-containing wastewater based on a first reaction time corresponding to the first trigger command; and conveying the second fluoride-containing wastewater to a secondary defluorination device; finally, adding a preset weight of defluorination-related agent to the secondary defluorination device, generating a second trigger command; and, based on a second reaction time corresponding to the second trigger command, when it is determined that a third fluoride-containing wastewater treated by the secondary defluorination device meets a first preset condition, outputting the third fluoride-containing wastewater to a clear water tank; wherein the defluorination-related agent includes at least aluminum salts. Therefore, this embodiment not only reduces the fluoride content in high-fluoride water to below 15 mg / L through a two-stage defluorination process, but also effectively and accurately controls the dosage of defluorination-related agents by monitoring and providing real-time feedback data online, saving on agent treatment costs and improving the treatment efficiency of fluoride-containing wastewater. Attached Figure Description

[0020] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 This is a schematic flowchart of a method for controlling the treatment of fluoride-containing wastewater according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of a treatment system for controlling fluoride-containing wastewater according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a treatment device for controlling fluoride-containing wastewater according to an embodiment of the present invention. Detailed Implementation

[0024] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0025] like Figure 1 The diagram shown is a flowchart illustrating a method for controlling the treatment of fluoride-containing wastewater according to an embodiment of the present invention.

[0026] A method for controlling the treatment of fluoride-containing wastewater includes at least the following steps:

[0027] S101, Obtain the detection data of the first fluoride-containing wastewater in the input pipeline of the primary defluorination equipment; wherein, the detection data is used to indicate the molar ratio between sodium ions and fluoride ions in the first fluoride-containing wastewater;

[0028] S102, add defluorination-related reagents corresponding to the detection data to the primary defluorination equipment and generate the first trigger command;

[0029] S103, based on the triggering of the first reaction time corresponding to the first triggering command, a second fluoride-containing wastewater is generated; and the second fluoride-containing wastewater is transported to the secondary defluorination equipment;

[0030] S104, Add a preset weight of defluorination-related reagent to the secondary defluorination equipment and generate a second trigger command;

[0031] S105, based on the triggering of the second reaction time corresponding to the second triggering command, when it is determined that the third fluoride-containing wastewater after treatment by the secondary defluorination equipment meets the first preset condition, the third fluoride-containing wastewater is output to the clear water tank; wherein, the defluorination-related agents include at least aluminum salts.

[0032] In S101, the detection data of the first fluoride-containing wastewater is used to indicate the Na+ content in the first fluoride-containing wastewater. + / F - The ratio of the amounts of sodium ions to fluoride ions in the first fluoride-containing wastewater is not less than 3 / 5. The detection equipment installed in the input pipeline of the primary defluorination unit measures the ratio of the amounts of sodium ions to fluoride ions in the first fluoride-containing wastewater, i.e., Na+. + / F - Ratio; the control center obtains the detected Na + / F - ratio.

[0033] In S102, the control center is based on the chemical formula Na. ++Al 3+ +6F-→Na3AlF6, confirming its interaction with Na + / F - The ratio corresponds to the weight of the defluorination-related agents. The weight of the defluorination-related agents indicates the weight of defluorination-related agents required to adequately remove fluoride from the first fluoride-containing wastewater; wherein, the defluorination-related agents include at least aluminum salts; for example: the defluorination-related agents include at least aluminum salts, pH adjusters, and flocculants.

[0034] In S103, the first reaction time indicates the time required for the defluorination-related agents to fully remove fluoride from the first fluoride-containing wastewater in the primary defluorination equipment. Based on the first trigger command, the residence time of the defluorination-related agents in the primary defluorination equipment is calculated; when the residence time reaches the first reaction time, the second fluoride-containing wastewater is generated; then, the primary defluorination equipment is controlled to transport the second fluoride-containing wastewater to the secondary defluorination equipment.

[0035] In S104, the preset weight indicates the weight of defluorination-related agents required to achieve an Al / F mass ratio of i3≥3 in the second fluoride-containing wastewater in the secondary defluorination equipment. Preferably, the preset weight indicates the weight of defluorination-related agents required to achieve an Al / F mass ratio of 5≥i3≥3 in the second fluoride-containing wastewater in the secondary defluorination equipment.

[0036] In step S105, based on the second trigger command, the residence time of the defluorinating agent in the secondary defluorination equipment is counted. When this residence time reaches the second reaction time, third fluoride-containing wastewater is generated. The fluoride content in the third fluoride-containing wastewater on the outlet pipe of the secondary defluorination equipment is detected. It is determined whether the fluoride content in the third fluoride-containing wastewater is <15mg / L. If so, it is determined that the third fluoride-containing wastewater meets the first preset condition. The third fluoride-containing wastewater is then discharged to the clear water tank.

[0037] This embodiment, through a two-stage defluorination process, not only reduces the fluoride content in high-fluoride water to below 15 mg / L, but also effectively and accurately controls the addition of defluorination-related agents by using online monitoring and real-time data feedback, saving agent treatment costs and improving the treatment efficiency of fluoride-containing wastewater.

[0038] like Figure 2 The diagram shown is a schematic diagram of a treatment system for controlling fluoride-containing wastewater according to an embodiment of the present invention.

[0039] A treatment system for controlling fluoride-containing wastewater includes: a control center, a primary fluoride removal device, a secondary fluoride removal device, a clear water tank, detection equipment, a dosing device, and a fluoride-containing wastewater equalization tank. The primary and secondary fluoride removal devices have identical structures. The primary fluoride removal device includes: a first reagent dosing tank, a first pH equalization tank, a first flocculation tank, and a first sedimentation tank, connected sequentially by pipelines. The secondary fluoride removal device includes: a second reagent dosing tank, a second pH equalization tank, a second flocculation tank, and a second sedimentation tank, connected sequentially by pipelines. The fluoride-containing wastewater equalization tank is connected to the primary fluoride removal device via pipelines, the primary fluoride removal device is connected to the secondary fluoride removal device via pipelines, and the secondary fluoride removal device is connected to the clear water tank via pipelines. The control center is communicatively connected to the dosing device, the fluoride-containing wastewater equalization tank, the primary fluoride removal device, and the secondary fluoride removal device. The detection equipment includes fluoride detection equipment and sodium detection equipment.

[0040] The treatment method provided in this embodiment will be described in detail below with reference to the treatment system for controlling fluoride-containing wastewater.

[0041] A method for controlling the treatment of fluoride-containing wastewater includes at least the following steps:

[0042] S1, acquire detection data of pretreated fluoride-containing wastewater in the inlet pipeline of the fluoride-containing wastewater regulating tank; wherein, the detection data is used to indicate the molar ratio between sodium ions and fluoride ions in the pretreated fluoride-containing wastewater;

[0043] S2, determine whether the detection data of the pretreated fluoride-containing wastewater meets the second preset condition; if the determination result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, then proceed to step S3; if the determination result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, then proceed to step S4.

[0044] S3, add sodium salt corresponding to the detection data to the fluoride-containing wastewater regulating tank, and obtain the detection data of the fluoride-containing wastewater with added sodium salt until the detection data of the fluoride-containing wastewater with added sodium salt meets the second preset condition, then end the operation of adding sodium salt to the fluoride-containing wastewater to generate the first fluoride-containing wastewater; and control the fluoride-containing wastewater regulating tank to transport the first fluoride-containing wastewater to the primary defluorination equipment.

[0045] S4, the pretreated fluoride-containing wastewater is identified as the first fluoride-containing wastewater; and the fluoride-containing wastewater regulating tank is controlled to transport the first fluoride-containing wastewater to the primary defluorination equipment;

[0046] S5, obtain the detection data of the first fluoride-containing wastewater on the input pipeline of the primary defluorination equipment;

[0047] S6, control the dosing device to add aluminum salt corresponding to the detection data to the primary defluorination device; and generate fourth fluoride-containing wastewater based on the triggering of the third reaction time; wherein, the defluorination-related agents include at least aluminum salt;

[0048] S7, control the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; and generate the fifth fluoride-containing wastewater based on the triggering of the fourth reaction time;

[0049] S8, control the dosing device to add a preset flocculant to the fifth fluoride-containing wastewater, and generate a first trigger command;

[0050] S9, based on the triggering of the first reaction time corresponding to the first triggering command, a second fluoride-containing wastewater is generated; and the second fluoride-containing wastewater is transported to a secondary defluorination device;

[0051] S10, the dosing device is controlled to add a preset weight of aluminum salt to the secondary defluorination device; and based on the triggering of the third reaction time, the sixth fluoride-containing wastewater is generated;

[0052] S11, control the dosing device to add a preset pH adjuster to the sixth fluoride-containing wastewater; and generate the seventh fluoride-containing wastewater based on the triggering of the fourth reaction time;

[0053] S12, control the dosing device to add a preset flocculant to the seventh fluoride-containing wastewater, and generate a second trigger command;

[0054] S13, based on the second reaction time corresponding to the second triggering command, a third fluoride-containing wastewater is generated;

[0055] S14, Obtain the fluoride content in the third fluoride-containing wastewater;

[0056] S15, if the fluoride content does not meet the first preset condition, the amount of aluminum salt added in the secondary defluorination equipment is adjusted until the fluoride content in the third fluoride-containing wastewater meets the first preset condition.

[0057] S16, when the fluoride content meets the first preset condition, the preset weight of aluminum salt added to the secondary defluorination equipment is maintained.

[0058] S17, the third fluoride-containing wastewater with the fluoride content meeting the first preset condition is discharged to the clear water tank.

[0059] Specifically, fluoride and sodium detection devices are installed on the inlet pipeline of the fluoride-containing regulating tank. These devices detect the pretreated fluoride-containing wastewater entering the regulating tank and obtain data. The control center determines the molar ratio of sodium to fluoride ions in the pretreated fluoride-containing wastewater based on the data. Then, the control center determines the Na+ content in the pretreated fluoride-containing wastewater.+ / F - Is the molar ratio i1 greater than or equal to 3 / 5? If yes, the control center will treat the pretreated fluoride-containing wastewater as the first fluoride-containing wastewater and transport it to the first reagent dosing tank. If not, the control center will control the dosing equipment to add sodium salt corresponding to the detection data to the fluoride-containing conditioning tank, so that the Na+ in the fluoride-containing wastewater... + / F - When the molar ratio of substances is greater than or equal to 3 / 5, the first fluoride-containing wastewater is generated; finally, the control center controls the fluoride-containing regulating tank to transport the first fluoride-containing wastewater to the first reagent dosing tank.

[0060] The first fluoride-containing wastewater is detected by fluoride and sodium detection devices on the inlet pipeline of the first reagent dosing tank, and the detection data is obtained. The control center acquires the detection data and determines the amount of aluminum salt to be added to the first reagent dosing tank based on the data (e.g., the amount of aluminum salt added should ensure that the molar ratio of Al / F in the wastewater, i2, is 1 / 5 ≥ i2 ≥ 1 / 6). The control center adds the corresponding amount of aluminum salt to the first reagent dosing tank according to the dosage. Based on the triggering of the third reaction time set by the control center for the first reagent dosing tank, the fourth fluoride-containing wastewater and the third triggering command are generated. Here, the first fluoride-containing wastewater and aluminum salt undergo a chemical reaction in the first reagent dosing tank to generate cryolite. Chemical formula, for example: Na. + +Al 3+ +6F-→Na3AlF6. Based on the third trigger command, the control center controls the first reagent dosing tank to transport the fourth fluoride-containing wastewater to the first pH adjustment tank, and controls the dosing equipment to add the preset pH adjuster to the first pH adjustment tank; based on the trigger set by the control center for the fourth reaction time of the first pH adjustment tank, the fifth fluoride-containing wastewater and the fourth trigger command are generated in the pH adjustment tank; wherein, the pH value of the fifth fluoride-containing wastewater is 5-7, which is further conducive to the formation of cryolite in the fifth fluoride-containing wastewater. Based on the fourth trigger command, the control center controls the first pH adjustment tank to transport the fifth fluoride-containing wastewater to the first flocculation tank, and controls the dosing equipment to add the preset flocculant to the first flocculation tank; based on the trigger set by the control center for the first reaction time of the first flocculation tank, the fifth fluoride-containing wastewater and the first trigger command are generated in the first flocculation tank; wherein, the preset flocculant dosage is 5-10 mg / L, and the preset flocculant dosage can cause the suspended solids in the fifth fluoride-containing wastewater to settle quickly.

[0061] Based on the first trigger command, the control center controls the first flocculation tank to transport the fifth fluoride-containing wastewater to the second reagent dosing tank. The control center also controls the dosing equipment to add a preset weight of aluminum salt (e.g., the aluminum salt ensures that the Al / F mass ratio in the second reagent dosing tank is i3≥3) to the second reagent dosing tank. Based on the third reaction time set by the control center for the second reagent dosing tank, a sixth fluoride-containing wastewater and the fifth trigger command are generated in the second reagent dosing tank. Based on the fifth trigger command, the control center controls the second reagent dosing tank to transport the sixth fluoride-containing wastewater to the second pH adjustment tank and controls the dosing equipment to add a preset pH adjuster to the second pH adjustment tank. Based on the fourth reaction time set by the control center for the second pH adjustment tank, a seventh fluoride-containing wastewater and the sixth trigger command are generated in the pH adjustment tank. The seventh fluoride-containing wastewater has a pH value of 5.8-7.2, which is favorable for the adsorption of fluorides by the generated aluminum hydroxide. Based on the sixth trigger command, the control center controls the second pH adjustment tank to transport the seventh fluoride-containing wastewater to the second flocculation tank, and controls the dosing equipment to add the preset flocculant to the second flocculation tank; based on the trigger set by the control center for the first reaction time of the second flocculation tank, the third fluoride-containing wastewater and the second trigger command are generated in the second flocculation tank; wherein, the dosage of the preset flocculant is 5-10 mg / L, and the preset flocculant dosage can make the flocs in the third fluoride-containing wastewater settle quickly. The fluoride-containing wastewater from the third fluoride-containing wastewater is tested using a fluoride detection device installed on the output pipeline of the second flocculation tank. The control center analyzes the fluoride data in the third fluoride-containing wastewater as follows: a. When the detected fluoride content is >15mg / L, the control center will issue an instruction to increase the amount of aluminum salt added to the second reagent addition tank until the fluoride content in the third fluoride-containing wastewater is <15mg / L; b. When the detected fluoride content is <15mg / L, the third fluoride-containing wastewater is transferred to the clear water tank. At this time, the amount of aluminum salt added to the second reagent addition tank remains basically unchanged, or is slightly adjusted to reduce the amount of aluminum salt added.

[0062] Here, aluminum salts include, but are not limited to, aluminum sulfate, sodium aluminate, polyaluminum chloride (PAC), etc.; flocculants include, but are not limited to, PAM, etc.

[0063] It should be noted that, unlike existing technologies, neither the primary nor secondary defluorination in this embodiment requires the addition of coagulants.

[0064] In this embodiment, the primary defluorination unit generates cryolite by adding excess aluminum salt, which effectively removes fluoride from high-fluoride wastewater. However, due to the solubility of cryolite, a certain amount of fluoride remains in the wastewater output from the primary defluorination unit. Therefore, by adding aluminum salt to the secondary defluorination unit to generate aluminum hydroxide, the fluoride in the wastewater can be effectively adsorbed, thereby reducing the fluoride content in the final output wastewater and ensuring it meets environmental protection requirements. Thus, compared to traditional calcium-based defluorination, this embodiment, through a two-stage defluorination system, can not only reduce fluoride levels in high-fluoride wastewater to below 15 mg / L, but also produces only 1 / 4 to 1 / 6 of the sludge required for lime-based defluorination, significantly reducing the amount of sludge treated.

[0065] The method for controlling fluoride-containing wastewater in this embodiment does not require human intervention and can achieve automated treatment. Moreover, by monitoring and providing real-time feedback data online, it can accurately control the amount of defluoridating agent added, thereby saving on the treatment cost of defluoridating agents.

[0066] The high-fluoride wastewater treatment methods provided in this embodiment and the comparative example will be described in detail below with reference to specific application scenarios.

[0067] High-fluoride wastewater is collected in a high-fluoride water equalization tank and then enters the primary defluorination equipment through pipelines. Instruments for testing fluoride and sodium ions are installed on the pipelines, and the data is fed back to the control center. The control center analyzes the fluoride and sodium ion data and then issues instructions to the dosing equipment to add chemicals to the primary defluorination equipment. The chemicals used are aluminum salts and sodium salts. After dosing, the pH value of the primary defluorination equipment is immediately adjusted to between 5 and 7 to allow for complete reaction. The primary defluorination equipment can be a high-efficiency sedimentation tank, a sand-added sedimentation tank, or a circulating clarification tank. This type of tank can include a chemical dosing tank, a pH adjustment tank, a flocculation tank, and a sedimentation tank. The residence time in the chemical dosing tank is 3-5 minutes, the residence time in the pH adjustment tank is 6-10 minutes, and the residence time in the flocculation tank is 6-10 minutes.

[0068] The effluent from the primary defluorination unit flows through pipelines to the secondary defluorination unit. Fluoride detection equipment is installed on the effluent pipeline, and the data is collected and sent to the control center. The control center analyzes the fluoride data and then issues instructions to the dosing equipment to add chemicals to the secondary defluorination unit. The chemical used here is aluminum salt. After dosing, the pH value of the secondary defluorination unit is immediately adjusted to between 5.8 and 7.2 to allow for complete reaction. The secondary defluorination unit can be a high-efficiency sedimentation tank, a sand-added sedimentation tank, or a circulating clarification tank. This type of tank can include a chemical dosing tank, a pH adjustment tank, a flocculation tank, and a sedimentation tank. The residence time in the chemical dosing tank is 3-5 minutes, the residence time in the pH adjustment tank is 6-10 minutes, and the residence time in the flocculation tank is 6-10 minutes.

[0069] The effluent from the secondary defluoridation equipment enters the clear water tank through pipelines. Fluoride detection equipment is installed on the effluent pipelines, and the data is collected by online monitoring equipment. The online monitoring equipment feeds the data back to the control center, which analyzes the fluoride data and adjusts the amount of aluminum salt added in the secondary defluoridation process according to the fluoride level to achieve the optimal dosage and optimize the dosage.

[0070] The embodiments employ the treatment method for controlling fluoride-containing wastewater provided in this application, while the comparative examples utilize a traditional calcium salt coagulation and sedimentation process. The high-fluoride wastewater originates from AHF wastewater and PVDF high-fluoride wastewater from a project in Sichuan. Specific data and parameters are shown in Tables 1, 2, 3, and 4.

[0071] Table 1: Specific Project Information on AHF Wastewater and PVDF High-Fluoride Wastewater from a Project in Sichuan

[0072]

[0073] Table 2: Specific parameters of each embodiment of this application

[0074]

[0075]

[0076] Table 3: Specific parameters of each comparative example formed using the traditional calcium salt coagulation and sedimentation process

[0077]

[0078]

[0079] Table 4: Final influent and effluent water quality of each embodiment and comparative example

[0080]

[0081]

[0082] The following conclusions can be drawn from the examples and comparative examples:

[0083] 1) As can be seen from Examples 1-3, adding aluminum salt in two stages can effectively reduce the fluoride content in wastewater from 4000 mg / L to below 15 mg / L.

[0084] 2) Through Examples 1-3, it can be concluded that the treatment effects of aluminum salts such as aluminum sulfate, PAC, and sodium aluminate are comparable.

[0085] 3) Using primary lime in Comparative Examples 1-3 at 2, 3, and 6 times the theoretical dosage, the fluoride concentration could not be reduced from 4000 mg / L to below 100 mg / L. Furthermore, adding the same aluminum salt as in the examples at a secondary dosage also failed to reduce the fluoride content in the wastewater to below 15 mg / L.

[0086] 4) Through the examples and comparative examples, it can be concluded that the sludge production of the primary method using aluminum salts to generate cryolite is much smaller than that of the lime defluorination method. When comparing the optimal treatment effect of lime, the sludge production using aluminum salts is about 1 / 6 of that using lime; thus greatly reducing the amount of sludge generated.

[0087] 5) It also reduced sludge treatment costs.

[0088] This embodiment can replenish missing defluorination agents in a timely manner through online analysis; both stages of defluorination use aluminum salts for defluorination, but the defluorination principles are different. The first stage of defluorination uses the method of generating cryolite; the second stage of defluorination uses the adsorption and defluorination effect of aluminum hydroxide precipitation; the two-stage defluorination can effectively reduce fluoride to below 15 mg / L.

[0089] like Figure 3 The diagram shown is a structural schematic of a treatment device for controlling fluoride-containing wastewater according to an embodiment of the present invention.

[0090] A treatment device for controlling fluoride-containing wastewater, the device 300 comprising: a first acquisition module 301, configured to acquire detection data of a first fluoride-containing wastewater in the input pipeline of a primary defluorination device; wherein the detection data indicates the molar ratio of sodium ions to fluoride ions in the first fluoride-containing wastewater; a first generation module 302, configured to add a defluorination-related agent corresponding to the detection data to the primary defluorination device and generate a first trigger command; a second generation module 303, configured to generate a second fluoride-containing wastewater based on a first reaction time corresponding to the first trigger command and to transport the second fluoride-containing wastewater to a secondary defluorination device; a third generation module 304, configured to add a preset weight of defluorination-related agent to the secondary defluorination device and generate a second trigger command; and a first determination module 305, configured to output the third fluoride-containing wastewater to a clear water tank based on a second reaction time corresponding to the second trigger command and when it is determined that the third fluoride-containing wastewater treated by the secondary defluorination device meets a first preset condition; wherein the defluorination-related agent includes at least aluminum salts.

[0091] In a preferred embodiment, the device further includes: a second acquisition module, used to acquire detection data of pretreated fluoride-containing wastewater in the input pipeline of the fluoride-containing wastewater regulating tank; a judgment module, used to judge whether the detection data of the pretreated fluoride-containing wastewater meets a second preset condition; an addition module, used to add sodium salt corresponding to the detection data to the fluoride-containing wastewater regulating tank if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, and acquire detection data of the pretreated fluoride-containing wastewater in the output pipeline of the fluoride-containing wastewater regulating tank; until the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, the operation of adding sodium salt to the fluoride-containing wastewater regulating tank ends, generating the first fluoride-containing wastewater; a second determination module, used to determine the pretreated fluoride-containing wastewater as the first fluoride-containing wastewater if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition; and a conveying module, used to control the fluoride-containing wastewater regulating tank to convey the first fluoride-containing wastewater to the primary defluorination equipment.

[0092] In a preferred embodiment, the first generation module includes: a first generation unit, used to control the dosing device to add aluminum salt corresponding to the detection data to the primary defluorination device; and to generate a fourth fluoride-containing wastewater based on a third reaction time trigger; a second generation unit, used to control the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; and to generate a fifth fluoride-containing wastewater based on a fourth reaction time trigger; and a third generation unit, used to control the dosing device to add a preset flocculant to the fifth fluoride-containing wastewater and generate a first trigger command.

[0093] In a preferred embodiment, the third generation module includes: a first control unit, used to control the dosing device to add a preset weight of aluminum salt to the secondary defluorination device; and to generate a sixth fluoride-containing wastewater based on a third reaction time trigger; a second control unit, used to control the dosing device to add a preset pH adjuster to the sixth fluoride-containing wastewater; and to generate a seventh fluoride-containing wastewater based on a fourth reaction time trigger; and a third control unit, used to control the dosing device to add a preset flocculant to the seventh fluoride-containing wastewater and generate a second trigger command.

[0094] In a preferred embodiment, the first determining module includes: a generating unit, used to generate a third fluoride-containing wastewater based on a second reaction time corresponding to the second triggering instruction; an acquiring unit, used to acquire the fluoride content in the third fluoride-containing wastewater; an adjusting unit, used to adjust the amount of aluminum salt added in the secondary defluorination device when the fluoride content does not meet a first preset condition, until the fluoride content in the third fluoride-containing wastewater meets the first preset condition; a holding unit, used to hold a preset weight of aluminum salt added in the secondary defluorination device when the fluoride content meets the first preset condition; and an output unit, used to output the third fluoride-containing wastewater to a clear water tank.

[0095] The above-described apparatus can perform a method for controlling the treatment of fluoride-containing wastewater provided in an embodiment of the present invention, and has the corresponding functional modules and beneficial effects for performing such a method. Technical details not described in detail in this embodiment can be found in the method for controlling the treatment of fluoride-containing wastewater provided in an embodiment of the present invention.

[0096] The present invention also provides an electronic device, comprising: a processor; a memory for storing executable instructions of the processor; the processor being configured to read the executable instructions from the memory and execute the instructions to implement the method for controlling the treatment of fluoride-containing wastewater as described in the present invention.

[0097] In addition to the methods and apparatus described above, embodiments of this application may also be computer program products, which include computer program instructions that, when executed by a processor, cause the processor to perform the steps in the methods according to various embodiments of this application described in the "Exemplary Methods" section above.

[0098] The computer program product can be written in any combination of one or more programming languages ​​to perform the operations of the embodiments of this application. The programming languages ​​include object-oriented programming languages ​​such as Java and C++, as well as conventional procedural programming languages ​​such as C or similar languages. The program code can be executed entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0099] Furthermore, embodiments of this application may also be computer-readable storage media storing computer program instructions thereon, which, when executed by a processor, cause the processor to perform the steps in the methods according to the following embodiments of this application described in the "Exemplary Methods" section above.

[0100] The computer-readable storage medium may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may, for example, include, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0101] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0102] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0103] It should also be noted that in the apparatus, equipment, and methods of this application, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this application.

[0104] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use this application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of this application. Therefore, this application is not intended to be limited to the aspects shown herein, but rather to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0105] The above description has been given for purposes of illustration and description. Furthermore, this description is not intended to limit the embodiments of this application to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

[0106] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0107] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0108] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for controlling the treatment of fluoride-containing wastewater, characterized in that, include: The detection data of pretreated fluoride-containing wastewater in the inlet pipeline of the fluoride-containing wastewater regulating tank are obtained, wherein the detection data is used to indicate the molar ratio of sodium ions to fluoride ions in the pretreated fluoride-containing wastewater. Determine whether the detection data of the pretreated fluoride-containing wastewater meets the second preset condition. If the detection data is greater than or equal to 3 / 5, it indicates that the detection data meets the second preset condition. If the detection data is less than 3 / 5, it indicates that the detection data does not meet the second preset condition. If the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, then sodium salt corresponding to the detection data is added to the fluoride-containing wastewater regulating tank, and the detection data of the pretreated fluoride-containing wastewater on the output pipeline of the fluoride-containing wastewater regulating tank is obtained; until the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, then the operation of adding sodium salt to the fluoride-containing wastewater regulating tank is ended, and the first fluoride-containing wastewater is generated; If the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, then the pretreated fluoride-containing wastewater is identified as the first fluoride-containing wastewater. Control the fluoride-containing wastewater regulating tank to transport the first fluoride-containing wastewater to the primary defluorination equipment; Acquire detection data of the first fluoride-containing wastewater in the input pipeline of the primary fluoride removal equipment; wherein, the detection data is used to indicate the molar ratio between sodium ions and fluoride ions in the first fluoride-containing wastewater; The weight of the defluorination-related agent corresponding to the detection data of the first fluoride-containing wastewater is determined based on the detection data, and the defluorination-related agent corresponding to the detection data is added to the primary defluorination equipment to generate a first trigger command. The weight of the defluorination-related agent is used to indicate the weight of the defluorination-related agent required to fully remove fluoride from the first fluoride-containing wastewater. The step of adding a defluorination-related agent corresponding to the detection data to the primary defluorination equipment and generating a first trigger command includes: controlling the dosing device to add an aluminum salt corresponding to the detection data to the primary defluorination equipment; generating a fourth fluoride-containing wastewater based on a third reaction time; controlling the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; generating a fifth fluoride-containing wastewater based on a fourth reaction time, wherein the pH value of the fifth fluoride-containing wastewater is 5-7; controlling the dosing device to add a preset flocculant to the fifth fluoride-containing wastewater and generating the first trigger command. Based on the triggering of the first reaction time corresponding to the first triggering command, a second fluoride-containing wastewater is generated; and the second fluoride-containing wastewater is transported to a secondary defluorination device; Add a preset weight of defluorination-related agent to the secondary defluorination equipment to generate a second trigger command. The preset weight is used to indicate the weight of defluorination-related agent required to make the mass ratio of aluminum to fluoride in the second fluoride-containing wastewater in the secondary defluorination equipment greater than or equal to 3. Based on the triggering of the second reaction time corresponding to the second triggering command, when it is determined that the third fluoride-containing wastewater after treatment by the secondary defluorination equipment meets the first preset condition, the third fluoride-containing wastewater is output to the clear water tank. The defluorination-related agents include aluminum salts.

2. The method according to claim 1, characterized in that, The step of adding a preset weight of defluorination-related reagent to the secondary defluorination equipment and generating a second trigger command includes: The dosing device is controlled to add a preset weight of aluminum salt to the secondary defluorination equipment; and based on the triggering of the third reaction time, a sixth fluoride-containing wastewater is generated; The dosing device is controlled to add a preset pH adjuster to the sixth fluoride-containing wastewater; and based on the triggering of the fourth reaction time, the seventh fluoride-containing wastewater is generated; The dosing device is controlled to add a preset flocculant to the seventh fluoride-containing wastewater, generating a second trigger command.

3. The method according to claim 1, characterized in that, The second reaction time triggering based on the second triggering command, when it is determined that the third fluoride-containing wastewater after treatment by the secondary defluorination equipment meets the first preset condition, then the third fluoride-containing wastewater is output to the clear water tank; including: Based on the second reaction time corresponding to the second triggering command, a third fluoride-containing wastewater is generated; Obtain the fluoride content in the third fluoride-containing wastewater; If the fluoride content does not meet the first preset condition, the amount of aluminum salt added in the secondary defluorination equipment is adjusted until the fluoride content in the third fluoride-containing wastewater meets the first preset condition. When the fluoride content meets the first preset condition, the preset weight of aluminum salt added to the secondary defluorination equipment is maintained. The third fluoride-containing wastewater is discharged to the clear water tank.

4. A treatment apparatus for controlling fluoride-containing wastewater to implement the treatment method for controlling fluoride-containing wastewater as described in any one of claims 1-3, characterized in that, include: The first acquisition module is used to acquire detection data of the first fluoride-containing wastewater in the input pipeline of the primary defluorination equipment; wherein, the detection data is used to indicate the molar ratio between sodium ions and fluoride ions in the first fluoride-containing wastewater. The first generation module is used to add defluorination-related agents corresponding to the detection data to the primary defluorination equipment and generate a first trigger command. The second generation module is used to generate a second fluoride-containing wastewater based on the first reaction time corresponding to the first triggering instruction; and to transport the second fluoride-containing wastewater to a secondary defluorination device; The third generation module is used to add a preset weight of defluorination-related agents to the secondary defluorination equipment and generate a second trigger command. The first determining module is used to trigger the third fluoride-containing wastewater to the clear water tank when the third fluoride-containing wastewater after treatment by the secondary defluorination equipment meets the first preset condition, based on the second reaction time corresponding to the second triggering command; wherein the defluorination-related agents include aluminum salts; The device for controlling fluoride-containing wastewater treatment also includes: The second acquisition module is used to acquire the detection data of the pretreated fluoride-containing wastewater in the input pipeline of the fluoride-containing wastewater regulating tank; The judgment module is used to determine whether the detection data of the pretreated fluoride-containing wastewater meets the second preset condition; An addition module is used to add sodium salt corresponding to the detection data to the fluoride-containing wastewater regulating tank if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater does not meet the second preset condition, and to obtain the detection data of the pretreated fluoride-containing wastewater on the output pipeline of the fluoride-containing wastewater regulating tank; until the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition, the operation of adding sodium salt to the fluoride-containing wastewater regulating tank ends, and the first fluoride-containing wastewater is generated. The second determining module is used to determine the pretreated fluoride-containing wastewater as the first fluoride-containing wastewater if the judgment result indicates that the detection data of the pretreated fluoride-containing wastewater meets the second preset condition. The conveying module is used to control the conveying of the first fluoride-containing wastewater from the fluoride-containing wastewater regulating tank to the primary defluorination equipment.

5. The apparatus according to claim 4, characterized in that, The first generation module includes: The first generation unit is used to control the dosing device to add aluminum salt corresponding to the detection data to the primary defluorination device; and to generate the fourth fluoride-containing wastewater based on the triggering of the third reaction time; The second generation unit is used to control the dosing device to add a preset pH adjuster to the fourth fluoride-containing wastewater; and to generate the fifth fluoride-containing wastewater based on the triggering of the fourth reaction time; The third generation unit is used to control the dosing equipment to add a preset flocculant to the fifth fluoride-containing wastewater and generate a first trigger command.

6. An electronic device, comprising: One or more processors; A memory for storing one or more programs, which, when executed by one or more processors, cause the one or more processors to implement the method as described in any one of claims 1-3.

7. A computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the method as described in any one of claims 1-3.

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