A deep fluorine removal integrated system for fluorine-containing mine water

Abstract

The present application relates to the technical field of wastewater treatment, and discloses a deep fluorine removal integrated system for fluorine-containing mine water, which comprises: a raw water supply device for conveying raw water to a fluorine removal device; a medicament supply device for conveying medicament to the fluorine removal device; a bubble supply device for generating micro-nano bubbles; a slag scraping device arranged at the top of the rear end of the fluorine removal device, which is used for scraping off impurities on the upper part of wastewater in the fluorine removal device; a clean water pool in communication with the fluorine removal device; a detection module arranged in the clean water pool and raw water respectively, which is used for monitoring the water quality of clean water and raw water; and a control module electrically connected with the raw water supply device, the medicament supply device, the bubble supply device, the slag scraping device and the detection module. The present application not only improves the fluorine removal efficiency and water quality, but also realizes automatic operation through intelligent control, greatly reducing the complexity and cost of manual operation.

Description

An integrated deep defluoridation system for fluoride-containing mine water Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and more specifically, to an integrated system for deep defluorination of fluoride-containing mine water. Background Technology

[0002] In the field of fluoride-containing mine water treatment, excessive fluoride ions have always been a key bottleneck restricting the achievement of water quality standards for discharge. Currently, existing defluoridation technologies have many limitations in practical applications and are difficult to meet the requirements for efficient, stable, and intelligent treatment.

[0003] First, the defluoridation efficiency is low and the stability is insufficient. Traditional treatment processes often rely on the addition of a single defluorinating agent, lacking the synergistic optimization of coagulants and flocculants. This results in insufficient reaction between fluoride ions and the agent, especially in high-concentration fluoride-containing mine water, where the treated water quality often fluctuates and fails to consistently meet discharge standards. Furthermore, conventional aeration methods produce large bubbles with limited gas-liquid contact area, failing to effectively promote mass transfer reactions between fluoride ions and the defluorinating agent, further hindering defluoridation efficiency. Second, the level of automation and intelligence is low. Existing systems rely heavily on manual operation to control raw water supply, agent dosage, and sludge scraping frequency, lacking real-time water quality monitoring and dynamic adjustment mechanisms. When raw water quality (such as fluoride ion concentration and impurity content) fluctuates, treatment parameters cannot be adjusted in a timely manner, easily leading to agent waste or substandard treatment. In addition, manual water quality testing is not only lagging but also carries the risk of data errors, making it difficult to guarantee long-term stable system operation. Third, the separation and treatment of impurities are inadequate. In traditional processes, flocculants and suspended impurities accompanying fluoride ion removal are difficult to separate quickly. Even with a sludge scraper, the lack of a targeted bubble-assisted flotation design causes impurities to remain in the water, affecting effluent quality. Some systems do not simultaneously monitor the quality of the treated water and the raw water, failing to establish a closed-loop feedback loop and making it difficult to trace the root cause of poor treatment results. Finally, the system has low integration and high operating costs. In existing technologies, raw water delivery, reagent dosing, flotation separation, and sludge scraping are mostly controlled independently, lacking a unified control center. This results in poor coordination between devices and a disjointed treatment process. Frequent manual intervention not only increases operational complexity and labor costs, but also leads to energy consumption and reagent waste due to untimely parameter adjustments, further increasing operating costs.

[0004] Therefore, it is necessary to provide an integrated deep defluorination system for fluoride-containing mine water to solve the problems of low efficiency, poor stability, insufficient automation and intelligence, poor impurity separation effect, low system integration and high operating cost of existing defluorination processes. Summary of the Invention

[0005] In view of this, the present invention proposes an integrated system for deep defluorination of fluoride-containing mine water, which aims to solve the problems of low efficiency, poor stability, insufficient automation and intelligence, poor impurity separation effect, low system integration and high operating cost of existing defluorination processes.

[0006] This invention proposes an integrated deep defluoridation system for fluoride-containing mine water, comprising:

[0007] Raw water supply device, used to transport raw water to defluoridation device;

[0008] A reagent supply device is used to deliver reagents to the defluorination unit and to agitate the reagents with the wastewater in the defluorination unit; the reagents include defluorinating agents, coagulants, and PAM.

[0009] A bubble supply device is used to generate micro-nano bubbles and input the micro-nano bubbles into the defluorination device;

[0010] A sludge scraping device is installed at the top of the rear end of the defluorination device, and the sludge scraping device is used to scrape off impurities from the upper part of the wastewater in the defluorination device;

[0011] A water purification tank is connected to the defluoridation device, and the water purification tank is used to hold the purified water after the defluoridation device has reacted.

[0012] The detection modules are respectively installed in the water purification tank and the raw water, and the detection modules are used to monitor the quality of the purified water and the quality of the raw water.

[0013] The control module is electrically connected to the raw water supply device, the chemical supply device, the bubble supply device, the sludge scraping device, and the detection module, respectively. The control module is used to control the raw water supply device, the chemical supply device, the bubble supply device, and the sludge scraping device according to the purified water quality and the raw water quality.

[0014] Furthermore, the control module includes a data acquisition unit and a judgment and adjustment unit;

[0015] The acquisition unit is used to acquire purified water quality parameters, raw water quality parameters, raw water supply volume, reagent supply volume, bubble supply speed, bubble particle size, and continuous working time of the sludge scraping device; wherein, the purified water quality parameters include purified water fluoride ion concentration and purified water turbidity, and the raw water quality parameters include raw water fluoride ion concentration and raw water turbidity.

[0016] The judgment and adjustment unit is used to correct the raw water supply based on the raw water fluoride ion concentration; and to determine whether to adjust the reagent supply based on the purified water fluoride ion concentration. If it is determined to be adjusted, the unit calculates the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration, and adjusts the reagent supply based on the concentration difference.

[0017] The judgment and adjustment unit is also used to correct the bubble supply speed and bubble particle size according to the raw water turbidity; and to remind the sludge scraping device to clean according to the purified water turbidity and the continuous working time of the sludge scraping device.

[0018] Furthermore, before the determination and adjustment unit corrects the raw water supply based on the raw water fluoride ion concentration, it includes:

[0019] Obtain the fluoride ion concentration at several sampling points in the raw water, calculate the average value, and obtain the fluoride ion concentration of the raw water.

[0020] A threshold for the concentration of fluoride ions in raw water is preset. If the concentration of fluoride ions in raw water is greater than or equal to the threshold, the raw water supply is adjusted based on the concentration of fluoride ions in the raw water.

[0021] Furthermore, when the determination and adjustment unit is used to correct the raw water supply based on the raw water fluoride ion concentration, it includes:

[0022] Calculate the concentration difference between the original water fluoride ion concentration and the original water fluoride ion concentration threshold, and calculate the concentration ratio of the concentration difference to the original water fluoride ion concentration threshold;

[0023] The raw water supply volume is adjusted based on the concentration ratio.

[0024] The corrected raw water supply is less than the original raw water supply, and the corrected raw water supply is inversely proportional to the concentration ratio.

[0025] Furthermore, when determining whether to adjust the dosage of the reagent based on the fluoride ion concentration in the purified water, the following steps are included:

[0026] Determine whether to adjust the defluoridator supply based on the fluoride ion concentration in the purified water.

[0027] If the fluoride ion concentration in the purified water is greater than the preset standard fluoride ion concentration, then it is determined that the supply of defluorinating agent should be increased.

[0028] Otherwise, it is determined that the supply of the medicine will not be adjusted.

[0029] Furthermore, when determining to increase the defluoridator supply if the fluoride ion concentration in the purified water is greater than the preset standard fluoride ion concentration, the following steps are included:

[0030] Calculate the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration;

[0031] The concentration difference and the fluoride ion concentration in the purified water are combined to form a characteristic value combination;

[0032] Calculate the similarity between the feature value combination and historical feature value combinations, and filter out the maximum similarity.

[0033] Calculate the ratio of the historical defluorinating agent supply after the increase to the historical defluorinating agent supply without the increase, corresponding to the maximum similarity value;

[0034] The increased defluorinating agent supply is the product of the defluorinating agent supply and the historical ratio.

[0035] Furthermore, before the judgment and adjustment unit is further configured to correct the bubble supply rate and bubble particle size based on the raw water turbidity, it includes:

[0036] The turbidity of the raw water is obtained by acquiring the turbidity of several sampling points and calculating the average value.

[0037] A raw water turbidity threshold is preset. If the raw water turbidity is greater than or equal to the raw water turbidity threshold, it is determined that the raw water supply should be adjusted according to the raw water turbidity.

[0038] Furthermore, when the judgment and adjustment unit is also used to correct the bubble supply rate and bubble particle size based on the raw water turbidity, it includes:

[0039] Calculate the turbidity difference between the raw water turbidity and the raw water turbidity threshold, and calculate the turbidity ratio of the turbidity difference to the raw water turbidity threshold;

[0040] The bubble supply rate and bubble particle size are corrected based on the turbidity ratio.

[0041] The corrected bubble supply rate is greater than the original bubble supply rate, and the corrected bubble supply rate is directly proportional to the turbidity ratio; the corrected bubble particle size is inversely proportional to the turbidity ratio.

[0042] Furthermore, when reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous operating time of the sludge scraper, the following steps are included:

[0043] Set the turbidity threshold and duration threshold;

[0044] If the turbidity of the purified water is greater than or equal to the turbidity threshold, and the working duration of the sludge scraper is greater than or equal to the duration threshold, a first-level cleaning reminder will be issued.

[0045] If the turbidity of the purified water is less than the turbidity threshold, and the working duration of the sludge scraper is greater than or equal to the duration threshold, a secondary cleaning reminder will be issued.

[0046] If the turbidity of the purified water is greater than or equal to the turbidity threshold, and the working duration of the sludge scraper is less than the working duration threshold, a secondary cleaning reminder will be issued.

[0047] If the turbidity of the purified water is less than the turbidity threshold, and the working duration of the sludge scraper is less than the duration threshold, then no cleaning reminder will be issued;

[0048] The alert levels, from highest to lowest, are Level 1 Cleanup Alert and Level 2 Cleanup Alert.

[0049] Furthermore, when reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous working time of the sludge scraper, the following additional steps are included:

[0050] The cleaning interval of the sludge scraper is adjusted based on the turbidity of the raw water. Specifically, several raw water turbidities are collected within a preset time period, and the average turbidity of these raw water turbidities is calculated. The cleaning interval is then adjusted based on the average turbidity.

[0051] If the average turbidity value is greater than the preset average value, the cleaning interval time will be adjusted.

[0052] Calculate the turbidity difference between the average turbidity value and the preset average turbidity value, and adjust the cleaning interval based on the turbidity difference;

[0053] The turbidity difference is inversely proportional to the cleaning interval.

[0054] Compared with existing technologies, the advantages of this invention are as follows: First, by supplying raw water to the defluorination unit through a raw water supply device, the continuity and efficiency of the treatment process are ensured. The addition of the reagent supply device, especially the use of defluorinating agents, coagulants, and PAM, effectively removes fluoride ions from the water while simultaneously coagulating and flocculating other impurities, thus improving the water purification level. Furthermore, the micro-nano bubbles generated by the bubble supply device increase the gas-liquid contact area in the water, thereby improving defluorination efficiency, as micro-nano bubbles have a large specific surface area, promoting the reaction between fluoride ions and the defluorinating agent. The sludge scraping device effectively removes impurities from the upper part of the wastewater in the defluorination unit, ensuring the cleanliness of the treated water. The purification tank not only provides storage space for the purified water after the reaction but also ensures smooth operation of the treatment process through its connection with the defluorination unit. The detection module enables real-time monitoring of the purified water quality and the raw water quality, providing data support for the stable operation of the system. Finally, the introduction of the control module enables intelligent management of the entire system. It automatically adjusts the operating status of the raw water supply, reagent supply, bubble supply, and sludge scraping device based on the detected water quality, ensuring the system's efficient and stable operation. In summary, this invention not only improves defluoridation efficiency and water quality but also achieves automated operation through intelligent control, significantly reducing the complexity and cost of manual operation. Attached Figure Description

[0055] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0056] Figure 1 is a functional block diagram of an integrated deep defluorination system for fluoride-containing mine water provided in an embodiment of the present invention. Detailed Implementation

[0057] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] Referring to Figure 1, in some embodiments of this application, this embodiment provides an integrated deep defluoridation system for fluoride-containing mine water, comprising:

[0059] Raw water supply device, used to transport raw water to defluoridation device;

[0060] A reagent supply device is used to deliver reagents to the defluorination unit and to agitate the reagents with the wastewater in the defluorination unit; the reagents include defluorinating agents, coagulants, and PAM.

[0061] A bubble supply device is used to generate micro-nano bubbles and input the micro-nano bubbles into the defluorination device;

[0062] A sludge scraping device is installed at the top of the rear end of the defluorination device, and the sludge scraping device is used to scrape off impurities from the upper part of the wastewater in the defluorination device;

[0063] A water purification tank is connected to the defluoridation device, and the water purification tank is used to hold the purified water after the defluoridation device has reacted.

[0064] The detection modules are respectively installed in the water purification tank and the raw water, and the detection modules are used to monitor the quality of the purified water and the quality of the raw water.

[0065] The control module is electrically connected to the raw water supply device, the chemical supply device, the bubble supply device, the sludge scraping device, and the detection module, respectively. The control module is used to control the raw water supply device, the chemical supply device, the bubble supply device, and the sludge scraping device according to the purified water quality and the raw water quality.

[0066] Understandably, the raw water supply system first delivers the raw water to the defluoridation unit, ensuring the continuity and efficiency of the treatment process. The addition of chemicals, particularly defluoridating agents, coagulants, and PAM, effectively removes fluoride ions from the water while simultaneously coagulating and flocculating other impurities, thus improving water purification. Furthermore, the micro-nano bubbles generated by the bubble supply system increase the gas-liquid contact area in the water, thereby enhancing defluoridation efficiency because their large specific surface area promotes the reaction between fluoride ions and the defluoridating agent. The sludge scraper effectively removes impurities from the upper part of the wastewater in the defluoridation unit, ensuring the cleanliness of the treated water. The purification tank not only provides storage space for the purified water after the reaction but also, through its connection to the defluoridation unit, ensures smooth operation of the treatment process. The monitoring module allows for real-time monitoring of both the purified water and the raw water quality, providing data support for the stable operation of the system. Finally, the introduction of the control module enables intelligent management of the entire system. It automatically adjusts the operating status of the raw water supply, reagent supply, bubble supply, and sludge scraping device based on the detected water quality, ensuring the system's efficient and stable operation. In summary, this invention not only improves defluoridation efficiency and water quality but also achieves automated operation through intelligent control, significantly reducing the complexity and cost of manual operation.

[0067] Specifically, the preparation method of the defluorinating agent is as follows:

[0068] (1) Raw material ratio: Weigh out 25 parts of sodium aluminate, 15 parts of water-soluble sodium silicate, 4 parts of rare earth oxide (of which the mass ratio of lanthanum oxide to cerium oxide is 2:1), 20 parts of activated kaolin, 12 parts of magnesium hydroxide, and 2 parts of disodium hydrogen phosphate according to the mass ratio, mix them evenly to obtain mixed raw materials.

[0069] (2) Wet milling: The mixed raw materials are added to deionized water for wet milling with a liquid-solid mass ratio of 2:1. The mixture is wet milled in a planetary ball mill for 2 hours to form a uniform precursor mixture.

[0070] (3) Sintering activation: After drying the precursor mixture, sinter it at 1000℃ for 3 hours under a nitrogen atmosphere (flow rate 100mL / min) to obtain a sintered solid;

[0071] (4) Crushing and sieving: After cooling the sintered solid to room temperature, crush it and sieve it to obtain active powder with a specific surface area greater than 150 m². 2 / g, with pore sizes mainly distributed in the range of 5–50 nm;

[0072] (5) Dispersion treatment: The obtained active powder is added to deionized water at a mass ratio of 18:1, stirred for 30 minutes and ultrasonically dispersed for 10 minutes to obtain a dispersion slurry;

[0073] (6) Component compounding: Add 0.2 parts of citric acid and 1.5 parts of PAC powder to the dispersion slurry, and add 0.2 parts of anionic polyacrylamide powder at the same time. Continue stirring for 20 minutes, let stand and age for 24 hours, and control the aging temperature at 25°C to obtain the final defluorinating agent.

[0074] In some embodiments of this application, the control module includes a data acquisition unit and a judgment and adjustment unit;

[0075] The acquisition unit is used to acquire purified water quality parameters, raw water quality parameters, raw water supply volume, reagent supply volume, bubble supply speed, bubble particle size, and continuous working time of the sludge scraping device; wherein, the purified water quality parameters include purified water fluoride ion concentration and purified water turbidity, and the raw water quality parameters include raw water fluoride ion concentration and raw water turbidity.

[0076] The judgment and adjustment unit is used to correct the raw water supply based on the raw water fluoride ion concentration; and to determine whether to adjust the reagent supply based on the purified water fluoride ion concentration. If it is determined to be adjusted, the unit calculates the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration, and adjusts the reagent supply based on the concentration difference.

[0077] The judgment and adjustment unit is also used to correct the bubble supply speed and bubble particle size according to the raw water turbidity; and to remind the sludge scraping device to clean according to the purified water turbidity and the continuous working time of the sludge scraping device.

[0078] Understandably, the control module, through the collaborative work of the data acquisition unit and the judgment and adjustment unit, achieves precise control and optimization of the water purification process. The data acquisition unit is responsible for real-time monitoring of key parameters, including both purified water and raw water, providing detailed data support for subsequent judgments and adjustments. The judgment and adjustment unit, based on this collected data, intelligently corrects the raw water supply to ensure the treatment efficiency and quality of the raw water. Simultaneously, it can dynamically adjust the reagent supply and bubble supply speed based on the fluoride ion concentration and turbidity of the purified water to achieve the best purification effect. Furthermore, this unit can intelligently remind operators to clean the equipment based on the turbidity of the purified water and the operating time of the sludge scraper, thereby ensuring the continuous and efficient operation of the equipment. Overall, this invention improves the automation and intelligence level of water purification, optimizes resource utilization, reduces labor costs, and ensures water quality safety.

[0079] In some embodiments of this application, before the determination and adjustment unit corrects the raw water supply based on the raw water fluoride ion concentration, it includes:

[0080] Obtain the fluoride ion concentration at several sampling points in the raw water, calculate the average value, and obtain the fluoride ion concentration of the raw water.

[0081] A threshold for the concentration of fluoride ions in raw water is preset. If the concentration of fluoride ions in raw water is greater than or equal to the threshold, the raw water supply is adjusted based on the concentration of fluoride ions in the raw water.

[0082] In some embodiments of this application, when the determination and adjustment unit is used to correct the raw water supply based on the raw water fluoride ion concentration, it includes:

[0083] Calculate the concentration difference between the original water fluoride ion concentration and the original water fluoride ion concentration threshold, and calculate the concentration ratio of the concentration difference to the original water fluoride ion concentration threshold;

[0084] The raw water supply volume is adjusted based on the concentration ratio.

[0085] The corrected raw water supply is less than the original raw water supply, and the corrected raw water supply is inversely proportional to the concentration ratio.

[0086] Understandably, by obtaining the fluoride ion concentration at several sampling points in the raw water and calculating the average value, the fluoride ion concentration in the raw water can be accurately obtained and then compared with a pre-set fluoride ion concentration threshold. When the fluoride ion concentration in the raw water is greater than or equal to the threshold, the system will make necessary adjustments to the raw water supply based on this concentration. During the adjustment process, the concentration difference and concentration ratio are calculated, and then the raw water supply is corrected based on this ratio to ensure that the corrected supply is inversely proportional to the fluoride ion concentration. This effectively controls the input of fluoride ions and allows for precise dynamic adjustment based on the actual fluoride ion concentration in the raw water, ensuring water quality safety while avoiding resource waste.

[0087] In some embodiments of this application, determining whether to adjust the dosage of the reagent based on the fluoride ion concentration in the purified water includes:

[0088] Determine whether to adjust the defluoridator supply based on the fluoride ion concentration in the purified water.

[0089] If the fluoride ion concentration in the purified water is greater than the preset standard fluoride ion concentration, then it is determined that the supply of defluorinating agent should be increased.

[0090] Otherwise, it is determined that the supply of the medicine will not be adjusted.

[0091] In some embodiments of this application, when determining to increase the defluoridator supply if the fluoride ion concentration in the purified water is greater than the preset standard fluoride ion concentration, the method includes:

[0092] Calculate the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration;

[0093] The concentration difference and the fluoride ion concentration in the purified water are combined to form a characteristic value combination;

[0094] Calculate the similarity between the feature value combination and historical feature value combinations, and filter out the maximum similarity.

[0095] Calculate the ratio of the historical defluorinating agent supply after the increase to the historical defluorinating agent supply without the increase, corresponding to the maximum similarity value;

[0096] The increased defluorinating agent supply is the product of the defluorinating agent supply and the historical ratio.

[0097] Understandably, by monitoring the fluoride ion concentration in the purified water in real time and comparing it with preset standards, the supply of defluoridating agent can be intelligently adjusted. When the detected fluoride ion concentration exceeds the preset standard, the system automatically increases the supply of defluoridating agent to ensure that the water quality meets safety standards. This automated adjustment mechanism not only improves treatment efficiency but also reduces the need for manual intervention, thereby lowering operating costs. Furthermore, by calculating the similarity of feature value combinations between current and historical data and referring to historical ratios to determine the supply of defluoridating agent, more precise and personalized treatment can be achieved, ensuring stable water quality that meets standards while avoiding unnecessary waste of chemicals.

[0098] In some embodiments of this application, before the determination and adjustment unit is further configured to correct the bubble supply rate and bubble particle size based on the raw water turbidity, the following steps are included:

[0099] The turbidity of the raw water is obtained by acquiring the turbidity of several sampling points and calculating the average value.

[0100] A raw water turbidity threshold is preset. If the raw water turbidity is greater than or equal to the raw water turbidity threshold, it is determined that the raw water supply should be adjusted according to the raw water turbidity.

[0101] In some embodiments of this application, when the determination and adjustment unit is further configured to correct the bubble supply rate and bubble particle size based on the raw water turbidity, the following is included:

[0102] Calculate the turbidity difference between the raw water turbidity and the raw water turbidity threshold, and calculate the turbidity ratio of the turbidity difference to the raw water turbidity threshold;

[0103] The bubble supply rate and bubble particle size are corrected based on the turbidity ratio.

[0104] The corrected bubble supply rate is greater than the original bubble supply rate, and the corrected bubble supply rate is directly proportional to the turbidity ratio; the corrected bubble particle size is inversely proportional to the turbidity ratio.

[0105] Understandably, the raw water turbidity is obtained by acquiring the turbidity at several sampling points and calculating the average value. A raw water turbidity threshold is preset, and the raw water supply rate is adjusted when the raw water turbidity is greater than or equal to this threshold, thereby optimizing the treatment effect. Furthermore, when adjusting the bubble supply rate based on the raw water turbidity, the turbidity difference and turbidity ratio are calculated, and the bubble supply rate is adjusted accordingly to ensure that the adjusted bubble supply rate is proportional to the turbidity ratio, thereby improving treatment efficiency and water purification effect. This dynamic adjustment mechanism ensures that the system flexibly adjusts operating parameters according to changes in raw water turbidity to achieve better treatment results.

[0106] In some embodiments of this application, when reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous operating time of the sludge scraper, the following steps are included:

[0107] Set the turbidity threshold and duration threshold;

[0108] If the turbidity of the purified water is greater than or equal to the turbidity threshold, and the working duration of the sludge scraper is greater than or equal to the duration threshold, a first-level cleaning reminder will be issued.

[0109] If the turbidity of the purified water is less than the turbidity threshold, and the working duration of the sludge scraper is greater than or equal to the duration threshold, a secondary cleaning reminder will be issued.

[0110] If the turbidity of the purified water is greater than or equal to the turbidity threshold, and the working duration of the sludge scraper is less than the working duration threshold, a secondary cleaning reminder will be issued.

[0111] If the turbidity of the purified water is less than the turbidity threshold, and the working duration of the sludge scraper is less than the duration threshold, then no cleaning reminder will be issued;

[0112] The alert levels, from highest to lowest, are Level 1 Cleanup Alert and Level 2 Cleanup Alert.

[0113] Understandably, optimizing the cleaning reminder mechanism of the sludge scraper by setting turbidity and duration thresholds improves the efficiency and ease of maintenance of the water purification system. Specifically, when the purified water turbidity is high and the sludge scraper has been operating for a long time, the system issues a Level 1 cleaning reminder, indicating that immediate cleaning is necessary to prevent water quality deterioration and equipment performance degradation. If the turbidity is low but the operating time is still long, the system issues a Level 2 cleaning reminder, suggesting that the user clean later while maintaining the cleanliness and efficiency of the equipment. Similarly, if the turbidity is high but the operating time is short, a Level 2 cleaning reminder is issued, helping to prevent neglecting cleaning due to high workload in a short period. Finally, if both turbidity and operating time are low, no cleaning reminder is issued, thus avoiding unnecessary maintenance. Through this tiered reminder mechanism, users can rationally schedule cleaning work according to actual needs, ensuring the stable operation of the water purification system and extending the equipment's lifespan.

[0114] In some embodiments of this application, when reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous working time of the sludge scraper, the method further includes:

[0115] The cleaning interval of the sludge scraper is adjusted based on the turbidity of the raw water. Specifically, several raw water turbidities are collected within a preset time period, and the average turbidity of these raw water turbidities is calculated. The cleaning interval is then adjusted based on the average turbidity.

[0116] If the average turbidity value is greater than the preset average value, the cleaning interval time will be adjusted.

[0117] Calculate the turbidity difference between the average turbidity value and the preset average turbidity value, and adjust the cleaning interval based on the turbidity difference;

[0118] The turbidity difference is inversely proportional to the cleaning interval.

[0119] Understandably, by providing cleaning reminders based on the turbidity of the purified water and the continuous operating time of the sludge scraper, the maintenance efficiency of the sludge scraper is further optimized. Specifically, the system collects raw water turbidity data within a preset time period and calculates the average turbidity. If the average turbidity exceeds the preset value, the system automatically adjusts the cleaning interval to ensure the sludge scraper is cleaned at the appropriate time, thereby extending its service life and maintaining water purification effectiveness. Furthermore, the inverse relationship between turbidity difference and cleaning interval ensures a close correlation between cleaning frequency and changes in raw water turbidity, making maintenance more precise and efficient. This intelligent adjustment method not only improves equipment operating efficiency but also reduces unnecessary maintenance work.

[0120] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0121] In summary, the defluoridating agent and deep defluoridation integrated system of this invention are suitable for deep treatment of large-volume modular wastewater, solving the industry problem of deep defluoridation of medium and low concentration mine wastewater. The effluent meets the Class III water quality index requirements of the "Surface Water Environmental Quality Standard" (GB3838-2002), breaking through the taboo that the air flotation defluoridation process cannot be used for end-of-pipe treatment.

[0122] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0123] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0124] These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, such that the instructions, which execute on the computer or other programmable apparatus, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. An integrated system for deep defluoridation of fluoride-containing mine water, characterized in that, include: A raw water supply device is used to transport raw water to the defluorination device; a reagent supply device is used to transport reagents to the defluorination device and stir the reagents with the wastewater in the defluorination device; wherein, the reagents include defluorinating agent, coagulant, and PAM; a bubble supply device is used to generate micro-nano bubbles and input the micro-nano bubbles into the defluorination device; a sludge scraper is located at the top of the rear end of the defluorination device, and the sludge scraper is used to scrape off impurities on the upper part of the wastewater in the defluorination device; a purification tank is connected to the defluorination device, and the purification tank is used to hold the purified water after the reaction in the defluorination device; a detection module is located in the purification tank and the raw water respectively, and the detection module is used to monitor the quality of the purified water and the raw water; a control module is connected to the raw water supply device, the purification tank, and the wastewater in the defluorination device. The reagent supply device, bubble supply device, sludge scraping device, and detection module are electrically connected. The control module is used to control the raw water supply device, reagent supply device, bubble supply device, and sludge scraping device according to the purified water quality and raw water quality. The control module includes a data acquisition unit and a judgment and adjustment unit. The data acquisition unit is used to acquire purified water quality parameters, raw water quality parameters, raw water supply volume, reagent supply volume, bubble supply speed, bubble particle size, and the continuous working time of the sludge scraping device. The purified water quality parameters include purified water fluoride ion concentration and purified water turbidity, and the raw water quality parameters include raw water fluoride ion concentration and raw water turbidity. The judgment and adjustment unit is used to judge the fluoride ion concentration of the raw water, the raw water supply volume, and the purified water fluoride ion concentration. The system determines whether to adjust the dosage of the defluoridating agent. If adjustment is required, it calculates the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration, and adjusts the dosage of the defluoridating agent based on the concentration difference. The adjustment unit also corrects the bubble supply speed and bubble size based on the raw water turbidity, and provides cleaning reminders for the scraping device based on the purified water turbidity and the continuous working time of the scraping device. When determining whether to adjust the dosage of the defluoridating agent based on the purified water fluoride ion concentration, the system further includes: determining whether to adjust the defluoridating agent dosage based on the purified water fluoride ion concentration; if the purified water fluoride ion concentration is greater than the preset standard fluoride ion concentration, it determines to increase the defluoridating agent dosage: calculating the concentration difference between the purified water fluoride ion concentration and the preset standard fluoride ion concentration. The concentration difference between the fluoride ion concentration and the preset standard fluoride ion concentration; combining the concentration difference and the purified water fluoride ion concentration to form a feature value combination; calculating the similarity between the feature value combination and historical feature value combinations, and filtering the maximum similarity value; calculating the ratio of the historical defluorinating agent supply after the increase to the historical defluorinating agent supply without the increase corresponding to the maximum similarity value; the increased defluorinating agent supply is the product of the defluorinating agent supply and the historical ratio; otherwise, it is determined that the agent supply will not be adjusted; before the determination and adjustment unit is further used to correct the bubble supply speed and bubble particle size according to the raw water turbidity, it includes: obtaining the turbidity of several sampling points in the raw water, calculating the average value, and obtaining the raw water turbidity;A raw water turbidity threshold is preset. If the raw water turbidity is greater than or equal to the raw water turbidity threshold, it is determined that the raw water supply rate should be corrected based on the raw water turbidity. When the determination and adjustment unit is further used to correct the bubble supply rate and bubble size based on the raw water turbidity, it includes: calculating the turbidity difference between the raw water turbidity and the raw water turbidity threshold, and calculating the turbidity ratio between the turbidity difference and the raw water turbidity threshold; correcting the bubble supply rate and bubble size based on the turbidity ratio; wherein the corrected bubble supply rate is greater than the uncorrected bubble supply rate, and the corrected bubble supply rate is directly proportional to the turbidity ratio; the corrected bubble size is inversely proportional to the turbidity ratio.

2. The integrated deep defluoridation system for fluoride-containing mine water according to claim 1, characterized in that, Before the judgment and adjustment unit corrects the raw water supply based on the raw water fluoride concentration, it includes: obtaining the fluoride concentration at several sampling points in the raw water, calculating the average value to obtain the raw water fluoride concentration; setting a raw water fluoride concentration threshold in advance; if the raw water fluoride concentration is greater than or equal to the raw water fluoride concentration threshold, then it is determined that the raw water supply should be corrected based on the raw water fluoride concentration.

3. The integrated deep defluoridation system for fluoride-containing mine water according to claim 2, characterized in that, When the judgment and adjustment unit is used to correct the raw water supply based on the raw water fluoride concentration, it includes: calculating the concentration difference between the raw water fluoride concentration and the raw water fluoride concentration threshold, and calculating the concentration ratio between the concentration difference and the raw water fluoride concentration threshold; correcting the raw water supply based on the concentration ratio; wherein the corrected raw water supply is less than the original raw water supply, and the corrected raw water supply is inversely proportional to the concentration ratio.

4. The integrated deep defluoridation system for fluoride-containing mine water according to claim 1, characterized in that, When reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous working time of the sludge scraper, the process includes: setting a turbidity threshold and a continuous working time threshold; if the turbidity of the purified water is greater than or equal to the turbidity threshold and the continuous working time of the sludge scraper is greater than or equal to the continuous working time threshold, a first-level cleaning reminder is issued; if the turbidity of the purified water is less than the turbidity threshold and the continuous working time of the sludge scraper is greater than or equal to the continuous working time threshold, a second-level cleaning reminder is issued; if the turbidity of the purified water is greater than or equal to the turbidity threshold and the continuous working time of the sludge scraper is less than the continuous working time threshold, a second-level cleaning reminder is issued; if the turbidity of the purified water is less than the turbidity threshold and the continuous working time of the sludge scraper is less than the continuous working time threshold, no cleaning reminder is issued; wherein, the reminder levels are from high to low as first-level cleaning reminder and second-level cleaning reminder.

5. The integrated deep defluoridation system for fluoride-containing mine water according to claim 4, characterized in that, When reminding the sludge scraper to clean based on the turbidity of the purified water and the continuous working time of the sludge scraper, the method further includes: determining whether to adjust the cleaning interval of the sludge scraper based on the turbidity of the raw water; wherein, several raw water turbidities are collected within a preset time period, and the average turbidity of the several raw water turbidities is calculated; the cleaning interval is adjusted based on the average turbidity; if the average turbidity is greater than the preset average, the cleaning interval is adjusted; the turbidity difference between the average turbidity and the preset average is calculated, and the cleaning interval is adjusted based on the turbidity difference; the turbidity difference is inversely proportional to the cleaning interval.

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