Tobacco sewage dosing treatment device and method

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a tobacco sewage dosing treatment device and method.The device comprises a treatment mechanism, a detection mechanism, a dosing mechanism and a control mechanism, and the treatment mechanism comprises an adjusting tank, an air floatation tank, a biochemical treatment tank and a disinfection tank which are sequentially arranged along a sewage treatment path. The detection mechanism comprises a feedforward actual sewage index detection assembly and a feedback actual sewage index detection assembly, the feedforward actual sewage index detection assembly is used for detecting the sewage index of the adjusting tank, and the feedback actual sewage index detection assembly is used for detecting the sewage indexes at the water outlet of the air floatation tank and the disinfection tank. The dosing mechanism can be selectively communicated with or closed from the air floatation tank, the biochemical treatment tank and the disinfection tank. The detection mechanism and the dosing mechanism are both in communication connection with the control mechanism, can quickly respond to flow and concentration changes, and can feed back dosing parameter effects in time, adjust the medicament ratio, reduce medicament waste, reduce manual intervention and reduce labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a tobacco sewage dosing treatment device and method. Background Art

[0002] The treatment of tobacco wastewater is difficult due to its complex composition, high concentration and volatility of water quality. In the production stage, comprehensive wastewater includes domestic sewage and industrial sewage, and its composition is diverse, including fine suspended matter, lignin, nicotine, sugars, colloids, aromatics and other difficult-to-treat organic matter, and the sewage characteristics change significantly in different time periods, which increases the difficulty of treatment. In the non-production period, domestic sewage becomes the main treatment object, and its organic load is relatively low, but it still needs targeted treatment.

[0003] In the related technologies, manual dosing relies on experience when adjusting the ratio and dosage of the reagents, and it is difficult to respond to water quality changes in real time, resulting in problems such as reagent waste, low efficiency, and high labor intensity. In addition, although the automatic dosing technology based on flow monitoring can add reagents according to the preset ratio, its accuracy and adaptability are limited because tobacco wastewater has dual fluctuations in flow and concentration. Especially when the flow changes frequently and the amplitude is large, the system's response is delayed, affecting the accurate addition of the reagents, and it cannot effectively respond to water quality fluctuations. Summary of the invention

[0004] The purpose of the present invention is to provide a tobacco wastewater dosing treatment device and method to solve the problem that in the tobacco wastewater treatment device in the related art, it is difficult to add chemicals according to the concentration and flow rate changes of the influent, resulting in low treatment efficiency, delayed and inaccurate chemical addition.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides a tobacco wastewater dosing treatment device, which includes: a treatment mechanism, including a regulating tank, a flotation tank, a biochemical treatment tank and a disinfection tank arranged in sequence along the sewage treatment path; a detection mechanism, including a feedforward actual sewage index detection component and a feedback actual sewage index detection component, the feedforward actual sewage index detection component is used to detect the sewage index of the regulating tank, and the feedback actual sewage index detection component is used to detect the sewage index at the water outlet of the flotation tank and the disinfection tank; a dosing mechanism, the dosing mechanism can be selectively connected or closed with the flotation tank, the biochemical treatment tank, and the disinfection tank; a control mechanism, the detection mechanism and the dosing mechanism are both communicatively connected to the control mechanism.

[0007] In one embodiment, the feedforward actual sewage index detection component includes: a first turbidity detector, used to detect the turbidity of sewage in the regulating tank; and / or, a pH detector, used to detect the pH of sewage in the regulating tank; and / or, a first total phosphorus detector, a first total nitrogen detector and a first chemical oxygen demand detector, the first total phosphorus detector is used to detect the total phosphorus content of sewage in the regulating tank, the first total nitrogen detector is used to detect the total nitrogen content of sewage in the regulating tank, and the first chemical oxygen demand detector is used to detect the chemical oxygen demand of sewage in the regulating tank.

[0008] In one embodiment, the feedback actual sewage index detection component includes: a second turbidity detector, used to detect the turbidity of sewage at the outlet of the flotation tank; and / or, a second total phosphorus detector, a second total nitrogen detector and a second chemical oxygen demand detector, the second total phosphorus detector is used to detect the total phosphorus content of the sewage in the disinfection tank, the second total nitrogen detector is used to detect the total nitrogen content of the sewage in the disinfection tank, the second chemical oxygen demand detector is used to detect the chemical oxygen demand of the sewage in the disinfection tank; and / or, a residual chlorine detector, used to detect the residual chlorine value of the sewage in the disinfection tank.

[0009] In one embodiment, the treatment mechanism also includes a sedimentation tank, a deep treatment tank and a sludge treatment component. The water inlet of the sedimentation tank and the water outlet of the biochemical treatment tank can be selectively connected or closed, the water outlet of the sedimentation tank and the water inlet of the deep treatment tank can be selectively connected or closed, and the water outlet of the deep treatment tank and the water inlet of the disinfection tank can be selectively connected or closed; the scum outlet of the flotation tank, and / or the sludge outlet of the sedimentation tank, and / or the sludge outlet of the deep treatment tank can all be selectively connected or closed to the sludge treatment component, and the dosing mechanism can be selectively connected or closed to the sludge treatment component; the detection mechanism also includes a sludge concentration detector for detecting the sludge concentration value at the sludge treatment component, and the sludge concentration detector is communicatively connected to the control mechanism.

[0010] In one embodiment, the dosing mechanism includes: an acid-base dosing component, which can be selectively connected to or closed with the flotation tank; and / or a coagulation and flocculation dosing component, which can be selectively connected to or closed with the flotation tank and the sludge treatment component; and / or a carbon source dosing component, which can be selectively connected to or closed with the biochemical treatment tank; and / or a disinfectant dosing component, which can be selectively connected to or closed with the disinfection tank.

[0011] In one embodiment, the sludge treatment component includes a sludge nitrification barrel and a sludge dewatering machine that can be selectively connected or closed, the sludge outlet of the flotation tank, and / or the sludge outlet of the sedimentation tank, and / or the sludge outlet of the deep treatment tank can all be selectively connected or closed to the sludge nitrification barrel, and the sludge concentration detector can detect the sludge concentration value in the sludge nitrification barrel.

[0012] In one embodiment, the dosing mechanism includes: a dosing tank for storing medicine; a liquid level detection component for detecting the liquid level height in the dosing tank; a metering pump, the inlet of the metering pump is connected to the outlet of the dosing tank, the outlet of the metering pump can be connected to the flotation tank, the biochemical treatment tank, the disinfection tank and the sludge treatment component, and the metering pump and the liquid level detection component are both communicatively connected to the control mechanism; wherein, an agitator is provided in the dosing tank, the agitator is arranged along the axial direction of the dosing tank, and the agitator is used to stir the medicine in the dosing tank.

[0013] In a second aspect, the present invention provides a tobacco wastewater treatment method by adding drugs, and the tobacco wastewater treatment method includes: obtaining a target wastewater index and a feedforward actual wastewater index; determining a preset drug dosing parameter based on the feedforward actual wastewater index and the target wastewater index; adding drugs to a treatment mechanism based on the preset drug dosing parameter; obtaining a feedback actual wastewater index; correcting the feedforward actual wastewater index based on the feedback actual wastewater index and the target wastewater index to obtain a corrected actual wastewater index; determining a corrected drug dosing parameter based on the corrected actual wastewater index and the target wastewater index; adding drugs to the treatment mechanism based on the corrected drug dosing parameter, and if the feedback actual wastewater index is consistent with the target wastewater index, then continuing to add drugs with the corrected drug dosing parameter; if the feedback actual wastewater index is inconsistent with the target wastewater index, then re-correcting the feedforward actual wastewater index based on the feedback actual wastewater index and the target wastewater index.

[0014] In one of the embodiments, the feedforward actual sewage index is corrected according to the feedback actual sewage index and the target sewage index to obtain the corrected actual sewage index, including: calculating the difference between the feedback actual sewage index and the target sewage index, identifying the deviation of the addition effect of different agents, wherein the deviation of the addition effect of different agents includes insufficient dosage or excessive dosage; determining the sewage index correction parameter for the feedforward actual sewage index according to the deviation of the addition effect of different agents; determining the corrected actual sewage index according to the feedforward actual sewage index and the sewage index correction parameter.

[0015] In one of the embodiments, the modified dosing parameters are determined based on the modified actual sewage index and the target sewage index, including: calculating the difference between the modified actual sewage index and the target sewage index to obtain the modified sewage index difference; determining the additional dosing parameters based on the modified sewage index difference; determining the modified dosing parameters based on the additional dosing parameters and the preset dosing parameters.

[0016] The beneficial effects of the present invention are:

[0017] The tobacco wastewater dosing treatment device and method provided by the present invention combines the advantages of feedforward and feedback by setting a feedforward actual wastewater index detection component to perform water inlet feedforward and a feedback actual wastewater index detection component to perform effluent feedback. The dosing parameters at the regulating tank are fed forward by the feedforward actual wastewater index detection component to quickly respond to changes in flow and concentration. Then, the effluent feedback is performed by feeding back the actual wastewater index detection component to feed back the treatment effect, so that the control mechanism can adjust the dosing parameters in time, adjust the reagent ratio, reduce reagent waste, avoid secondary pollution and equipment problems caused by excessive addition, reduce the instability of a single feedforward operation, and reduce the lag of the feedback operation, so as to facilitate rapid response and precise adjustment, ensure effluent water quality while saving reagents, avoid environmental pollution caused by redundant reagents, reduce manual intervention, reduce labor intensity, and improve the safety and convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure and control principle of the tobacco wastewater dosing treatment device in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure and control principle of the dosing mechanism in the embodiment of the present invention;

[0020] Figure 3 The present invention is a flowchart of a method for treating tobacco wastewater by adding chemicals.

[0021] In the figure:

[0022] 1. Treatment mechanism; 11. Regulating tank; 12. Flotation tank; 13. Biochemical treatment tank; 14. Disinfection tank; 15. Sedimentation tank; 16. Deep treatment tank; 17. Sludge treatment components; 171. Sludge nitrification barrel; 172. Sludge dewatering machine;

[0023] 2. Detection mechanism; 21. Feedforward actual sewage index detection component; 211. First turbidity detector; 212. pH detector; 213. First total phosphorus detector; 214. First total nitrogen detector; 215. First chemical oxygen demand detector; 22. Feedback actual sewage index detection component; 221. Second turbidity detector; 222. Second total phosphorus detector; 223. Second total nitrogen detector; 224. Second chemical oxygen demand detector; 225. Residual chlorine detector; 23. Sludge concentration detector;

[0024] 3. Dosing mechanism; 31. Acid and alkali dosing component; 32. Coagulation and flocculation dosing component; 321. Coagulant dosing component; 322. Flocculant dosing component; 33. Carbon source dosing component; 34. Disinfectant dosing component; 35. Dosing tank; 36. Liquid level detection component; 37. Metering pump; 38. Agitator;

[0025] 4. Control mechanism. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0030] like Figure 1 to Figure 2As shown, an embodiment of the first aspect of the present invention provides a tobacco wastewater treatment device, which includes a treatment mechanism 1, a detection mechanism 2, a dosing mechanism 3 and a control mechanism 4. The treatment mechanism 1 includes a regulating tank 11, a flotation tank 12, a biochemical treatment tank 13 and a disinfection tank 14 arranged in sequence along the sewage treatment path. The detection mechanism 2 includes a feedforward actual sewage index detection component 21 and a feedback actual sewage index detection component 22. The feedforward actual sewage index detection component 21 is used to detect the sewage index of the regulating tank 11, and the feedback actual sewage index detection component 22 is used to detect the sewage index at the outlet of the flotation tank 12 and the disinfection tank 14. The dosing mechanism 3 can be selectively connected or closed with the flotation tank 12, the biochemical treatment tank 13, and the disinfection tank 14. The detection mechanism 2 and the dosing mechanism 3 are both connected to the control mechanism 4 for communication.

[0031] The treatment mechanism 1 refers to a series of physical and chemical units in the sewage treatment process, including a regulating tank 11, a flotation tank 12, a biochemical treatment tank 13 and a disinfection tank 14. Each unit has its specific treatment function, the purpose of which is to gradually remove pollutants in the sewage to meet the discharge standards.

[0032] The regulating tank 11 can be used to balance the flow and concentration of sewage, ensuring that the subsequent treatment units receive relatively stable sewage, thereby improving the treatment efficiency and effect.

[0033] The flotation tank 12 can combine the suspended matter in the sewage through the microbubbles of air or gas, so that the suspended matter floats up and is removed. It is suitable for treating sewage containing fine suspended matter and grease. An air flotation machine can be arranged in the flotation tank 12 for treatment.

[0034] The biochemical treatment tank 13 can use microorganisms to decompose organic pollutants in sewage and convert organic matter into harmless substances such as water, carbon dioxide and microbial cells through biochemical reactions, such as aerobic or anaerobic reactions.

[0035] The disinfection tank 14 is used in the later stage of sewage treatment to kill or inactivate pathogenic microorganisms in the water through chemical or physical methods, such as chlorination and ultraviolet irradiation, to ensure the microbial safety of the effluent.

[0036] The feedforward actual sewage index detection component 21 can provide real-time data for calculating and predicting the required dosage of reagents by real-time monitoring of the sewage index of the regulating tank 11, i.e., the feedforward actual sewage index, so as to adjust the reagent ratio before the treatment starts, thereby ensuring the targetedness and efficiency of the treatment.

[0037] The feedback actual sewage index detection component 22 can monitor the index of the treated sewage, that is, feedback the actual sewage index, such as the effluent of the flotation tank 12 and the disinfection tank 14, for evaluating the effect of the agent delivery, and making real-time adjustments through feedback control to ensure that the effluent water quality meets the standard.

[0038] The dosing mechanism 3 can selectively add agents to the flotation tank 12, the biochemical treatment tank 13 and the disinfection tank 14 according to the instructions of the control mechanism 4, and achieve on-demand distribution of the agents through precise dosing to avoid overdosage or underdosage.

[0039] The control mechanism 4 serves as a data processing module of the entire system, which can be but is not limited to an editable logic controller or a control circuit. The control mechanism 4 receives the real-time data detected and generated by the feedforward actual sewage index detection component 21 and the feedback actual sewage index detection component 22 of the detection mechanism 2, and timely adjusts the dosage and type of the agent to perform "feedforward + feedback" composite control to ensure the high efficiency of the treatment process and the reliability of the effluent.

[0040] This embodiment combines the advantages of feedforward and feedback by setting a feedforward actual sewage index detection component 21 for inlet feedforward and a feedback actual sewage index detection component 22 for outlet feedback. The feedforward actual sewage index detection component 21 is used to feedforward the inlet of the regulating tank 11 to estimate the dosing parameters, and the feedforward compensation based on the inlet load is used to quickly respond to the flow and concentration changes. The actual sewage index detection component 22 is used to feedback the outlet water to feedback the treatment effect, and the feedback is based on the outlet pollutant concentration, so that the control mechanism 4 can adjust the dosing parameters in time, and can adjust the reagent ratio according to the actual pollution situation of the sewage, and accurately control the amount of reagent used. It reduces the waste of chemicals and improves the treatment effect at the same time, greatly reduces the need for manual operation, improves the efficiency and stability of water quality treatment, avoids secondary pollution and equipment problems caused by excessive dosage, reduces the instability of single feedforward operation, and reduces the lag of feedback operation, so as to facilitate rapid response and precise adjustment, save chemicals while ensuring the quality of effluent water, avoid excess chemicals polluting the environment, reduce manual intervention, reduce labor intensity, improve the safety and convenience of operation, and solve the problem of difficulty in adding chemicals according to the concentration and flow rate of influent in tobacco wastewater treatment equipment in related technologies, resulting in low treatment efficiency, delayed and inaccurate chemical addition.

[0041] Optionally, the control mechanism 4 can analyze the real-time data of the detection mechanism 2 by receiving the real-time data of the detection mechanism 2 using algorithm models such as fuzzy control and neural network prediction, and dynamically adjust the dosage of the dosing mechanism 3. For example, when the chemical oxygen demand concentration of the regulating tank 11 is higher than the preset threshold, the control mechanism 4 will calculate the additional amount of medicine required, and increase the dosage of flocculant to the flotation tank 12 through the dosing mechanism 3 to accelerate the removal of suspended matter and ensure the stability of water quality in subsequent treatment links. The detection mechanism 2 collects water quality data in real time and transmits it to the central processor of the control mechanism 4 for analysis. The central processor calculates the amount of medicine required under the current water quality conditions according to the preset algorithm and mathematical model. Various factors can be considered in the calculation process, such as water volume fluctuations, water quality changes, types and concentrations of medicines, etc. Then, the output of the metering pump 37 is adjusted by the control module of the control mechanism 4 to achieve accurate dosing.

[0042] Optionally, the control mechanism 4 can also be designed to have remote monitoring and early warning functions, and can upload the water quality data collected by the detection mechanism 2 to the cloud server in real time, and predict possible equipment failures or abnormal water quality or insufficient reagents through big data analysis and AI algorithms, so as to carry out early warning and maintenance. For example, if abnormal fluctuations in the pH value of the regulating tank 11 are continuously detected, the system will automatically issue an early warning to prompt the operator to check the working status of the dosing mechanism 3 to ensure the normal operation of the reagent pump and the adequacy of the reagent storage.

[0043] like Figure 1 to Figure 2 As shown, in some embodiments, the feedforward actual sewage index detection component 21 includes a first turbidity detector 211, and / or a pH detector 212, and / or a first total phosphorus detector 213, a first total nitrogen detector 214 and a first chemical oxygen demand detector 215.

[0044] The first turbidity detector 211 is used to detect the turbidity of the sewage in the regulating tank 11, that is, the first turbidity detector 211 can measure the content of suspended solids in the water, reflecting the clarity of the water. In the tobacco sewage treatment device, the first turbidity detector 211 is mainly used to monitor the turbidity of the sewage in the regulating tank 11 in real time, provide important data for subsequent pollutant treatment, and effectively remove suspended matter by controlling the delivery of flocculants and coagulants.

[0045] The pH detector 212 is used to detect the pH value of the sewage in the regulating tank 11. Due to its production characteristics, tobacco sewage may be alkaline or change due to certain chemical substances. The pH detector 212 can monitor the pH value of the sewage in the regulating tank 11 in real time, which helps to control the addition of acid, alkali and other agents, maintain the chemical balance of the sewage treatment process, and ensure the normal operation of the subsequent treatment unit.

[0046] The first total phosphorus detector 213 is used to detect the total phosphorus content of the sewage in the regulating tank 11. The total phosphorus is the sum of phosphates and organic phosphorus compounds. The phosphorus contained in tobacco sewage mainly comes from tobacco leaves or other production raw materials. Excessive phosphorus will cause eutrophication of water bodies. The first total phosphorus detector 213 can accurately detect the phosphorus content of the sewage in the regulating tank 11, and guide the addition of appropriate amounts of chemical agents, such as iron salts or aluminum salts, to remove phosphorus and avoid negative effects on subsequent biochemical treatment processes.

[0047] The first total nitrogen detector 214 is used to detect the total nitrogen content of the sewage in the regulating tank 11, and the total nitrogen includes ammonia nitrogen, nitrite nitrogen, nitrate nitrogen and organic nitrogen. The nitrogen in tobacco sewage mainly comes from the natural decomposition products of tobacco leaves and the chemicals used in the production process. The first total nitrogen detector 214 can monitor the total nitrogen content of the sewage in the regulating tank 11 in real time, which helps to control the nitrogen removal process, for example, by adjusting the addition of carbon source agents in the biochemical treatment tank 13, promoting denitrification and reducing nitrogen emissions.

[0048] The first chemical oxygen demand detector 215, i.e., a COD detector, is used to detect the chemical oxygen demand concentration of the sewage in the regulating tank 11. The chemical oxygen demand concentration is an important indicator of the content of organic pollutants in water, which is reflected by measuring the amount of oxygen consumed by the reaction of organic matter in water with oxidants under certain conditions. The chemical oxygen demand concentration of tobacco sewage is usually high, reflecting the richness of organic matter. The first chemical oxygen demand detector 215 can monitor the chemical oxygen demand concentration of the sewage in the regulating tank 11 in real time, guide and control the dosage, ensure that the subsequent biochemical treatment or oxidation reaction is fully carried out, and effectively remove organic pollutants. The total phosphorus content P, total nitrogen content N and chemical oxygen demand C detected by the first total phosphorus detector 213, the first total nitrogen detector 214 and the first chemical oxygen demand detector 215 can calculate the CNP ratio through the preset model in the control mechanism 4 to obtain the CNP nutritional ratio, and the CNP nutritional ratio can be fed back to the control mechanism 4, which is used as a data reference for the addition of carbon sources such as industrial glucose to ensure that bacteria obtain nutrients in a suitable environment.

[0049] This embodiment integrates the first turbidity detector 211, the pH detector 212, the first total phosphorus detector 213, the first total nitrogen detector 214 and the first chemical oxygen demand detector 215 in the tobacco wastewater treatment device, thereby realizing the monitoring of key indicators of wastewater in the regulating tank 11, so as to quickly respond to changes in water quality, provide accurate data support for the adjustment of the control mechanism 4, and adjust the type and dosage of the agent. Different pollutants require different treatment methods and agents. By accurately measuring the concentration of pollutants in wastewater, the tobacco wastewater treatment device can more accurately select and adjust the dosing strategy, improve the pertinence of pollutant removal, and avoid unnecessary waste of agents. It can also monitor and quickly identify water quality abnormalities in real time, adjust treatment parameters in time, prevent the decline of treatment effect caused by water quality fluctuations, and improve the stability and reliability of the entire sewage treatment system.

[0050] like Figure 1 to Figure 2 As shown, in some embodiments, the feedback actual sewage index detection component 22 includes a second turbidity detector 221, and / or a second total phosphorus detector 222, a second total nitrogen detector 223 and a second chemical oxygen demand detector 224, and / or a residual chlorine detector 225.

[0051] The second turbidity detector 221 is used to detect the turbidity of the sewage at the outlet of the flotation tank 12, that is, the second turbidity detector 221 can monitor the turbidity of the sewage after the initial removal of suspended matter, ensuring that the subsequent treatment stage can receive sewage with lower turbidity, which is conducive to improving the overall sewage treatment efficiency. By real-time monitoring of the sewage turbidity at the outlet of the flotation tank 12, the efficiency of the flotation process can be evaluated, and the amount of flocculant and bubbles added can be adjusted in time to achieve the best suspended matter removal effect.

[0052] The second total phosphorus detector 222 is used to detect the total phosphorus content of the sewage in the disinfection tank 14, helping to monitor the removal of phosphorus and prevent eutrophication of the water body. The second total nitrogen detector 223 is used to detect the total nitrogen content of the sewage in the disinfection tank 14 to ensure that the nitrogen removal level meets environmental protection requirements. The second chemical oxygen demand detector 224 is used to detect the chemical oxygen demand concentration of the sewage in the disinfection tank 14, which can detect the residual organic matter in the sewage and ensure the cleanliness of the effluent water quality. The second total phosphorus detector 222, the second total nitrogen detector 223 and the second chemical oxygen demand detector 224 are used to monitor the total phosphorus, total nitrogen and chemical oxygen demand indicators of the final effluent to ensure that the treated sewage meets the discharge standards. The total phosphorus content P, total nitrogen content N and chemical oxygen demand C detected by the second total phosphorus detector 222, the second total nitrogen detector 223 and the second chemical oxygen demand detector 224 can calculate the CNP ratio through a preset model in the control mechanism 4 to obtain the CNP nutritional ratio. The CNP nutritional ratio can be fed back to the control mechanism 4 and used as a data reference for adding carbon sources such as industrial glucose. That is, the control mechanism 4 can adjust the carbon source addition according to the feedforward and feedback CNP nutritional ratio to better ensure that the bacteria obtain nutrients in a suitable environment.

[0053] The residual chlorine detector 225 is used to detect the residual chlorine value of the sewage in the disinfection tank 14 after disinfection treatment to evaluate the disinfection effect. The presence of an appropriate amount of residual chlorine can ensure a continuous bactericidal effect and prevent the regeneration of pathogenic microorganisms. However, excessive residual chlorine may cause secondary pollution to the environment. Therefore, the residual chlorine value is monitored in real time, and the amount of disinfectant is adjusted to ensure that the disinfection requirements are met and the residual chlorine is avoided to be too high, so that efficient and environmentally friendly disinfection can be achieved.

[0054] This embodiment realizes feedback monitoring of the treatment process by setting a second turbidity detector 221, a second total phosphorus detector 222, a second total nitrogen detector 223, a second chemical oxygen demand detector 224 and a residual chlorine detector 225 at the key nodes of the flotation tank 12 outlet and the disinfection tank 14 in the tobacco wastewater treatment device, and can verify the effect of each treatment stage in real time, such as the suspended matter removal efficiency of the flotation tank 12, and the total phosphorus, total nitrogen, chemical oxygen demand and residual chlorine index of the final effluent of the disinfection tank 14, to ensure that the treatment of each link is in the best state, and improve the transparency and controllability of the entire sewage treatment process. According to the data of the feedback actual sewage index detection component 22, the control mechanism 4 can perform real-time feedback control, dynamically adjust the amount and type of the agent, and the aeration volume, stirring speed and other treatment parameters of the flotation tank 12, while ensuring the treatment effect, reducing excessive use of agents and energy waste, and improving the economy and environmental protection of the treatment. The linkage between the feedback actual sewage index detection component 22 and the control mechanism 4 enables the tobacco sewage treatment device to perform feedback adjustment and automatically adjust the treatment process according to the real-time water quality monitoring results, thereby improving the stability and adaptability of the system and maintaining the consistency of the treatment effect even when the water quality fluctuates greatly.

[0055] In this embodiment, the second turbidity detector 221 located at the outlet of the flotation tank 12 can not only monitor the turbidity of the sewage, but also be combined with the control system to analyze the relationship between turbidity and flow in real time. For example, when the second turbidity detector 221 detects that the turbidity of the water outlet of the flotation tank 12 is high, such as when the sewage flow suddenly increases and the processing time is insufficient, the control mechanism 4 can adjust the flow rate and reduce the water inlet speed to provide more sufficient time for the flotation process, thereby ensuring that the suspended matter is completely removed and avoiding the impact on the subsequent processing units.

[0056] like Figure 1 to Figure 2 As shown, in some embodiments, the treatment mechanism 1 further includes a sedimentation tank 15, a deep treatment tank 16 and a sludge treatment assembly 17, the water inlet of the sedimentation tank 15 and the water outlet of the biochemical treatment tank 13 can be selectively connected or closed, the water outlet of the sedimentation tank 15 and the water inlet of the deep treatment tank 16 can be selectively connected or closed, and the water outlet of the deep treatment tank 16 and the water inlet of the disinfection tank 14 can be selectively connected or closed. In addition, before the regulating tank 11, the tobacco wastewater can be filtered through a mechanical grille, and then flow into the water collection tank and then enter the regulating tank 11.

[0057] The sludge outlet of the flotation tank 12, and / or the sludge outlet of the sedimentation tank 15, and / or the sludge outlet of the deep treatment tank 16 can be selectively connected to or closed with the sludge treatment component 17, and the dosing mechanism 3 can be selectively connected to or closed with the sludge treatment component 17; the detection mechanism 2 also includes a sludge concentration detector 23 for detecting the sludge concentration value at the sludge treatment component 17, and the sludge concentration detector 23 is communicated with the control mechanism 4.

[0058] Among them, in the process of tobacco wastewater treatment, the sedimentation tank 15 is mainly used to further remove suspended solids and sediments in the wastewater. It is located after the biochemical treatment tank 13 and before the deep treatment tank 16. Through physical sedimentation, the solid particles in the wastewater are settled under the action of gravity, and the upper clear liquid flows to the subsequent treatment unit. In this embodiment, the water inlet of the sedimentation tank 15 and the water outlet of the biochemical treatment tank 13, as well as the water outlet of the sedimentation tank 15 and the water inlet of the deep treatment tank 16, can be selectively connected or closed according to the instructions of the control mechanism 4. It should be noted here that in this embodiment and other embodiments, the selective connection or closure between the two components means that a switch valve such as a solenoid valve or a ball valve can be set at the corresponding connection position, which can be opened or closed by the user manually or by the control mechanism 4 by sending a switch instruction.

[0059] The deep treatment tank 16 is a more advanced treatment for the sewage after biochemical treatment and sedimentation treatment. For example, the deep treatment tank 16 may include chemical treatment, filtration, adsorption and other processes, the purpose of which is to remove the residual organic matter, nitrogen, phosphorus and other pollutants that are difficult to biodegrade in the water, and ensure that the effluent water quality meets more stringent discharge or reuse standards. In this embodiment, the outlet of the deep treatment tank 16 and the water inlet of the disinfection tank 14 can be selectively connected or closed, and it can be determined whether further deep treatment is needed according to the effluent water quality requirements and the current water quality conditions, thereby avoiding unnecessary waste of energy and reagents and improving resource utilization efficiency.

[0060] In the process of tobacco wastewater treatment, the flotation tank 12, the sedimentation tank 15 and the deep treatment tank 16 will produce a certain amount of scum or sludge. The sludge treatment component 17 is responsible for centralized treatment of these sludges, including concentration, dehydration, disinfection, stabilization and other processes to reduce their volume and harmful components for subsequent disposal or resource utilization. The sludge treatment component 17 can selectively connect or close the sludge outlets of the flotation tank 12, the sedimentation tank 15 and the deep treatment tank 16, and connect or close the dosing mechanism 3, so that the sludge treatment can dynamically adjust the treatment strategy and the dosage of the agent according to the nature and treatment requirements of the sludge, to ensure efficient and safe treatment of the sludge.

[0061] The sludge concentration detector 23 is used to monitor the sludge concentration in the sludge treatment component 17. Sludge concentration is an important indicator for measuring sludge treatment efficiency and stabilization degree. By detecting the sludge concentration in real time, it can ensure that the sludge treatment component 17 operates in the best working state, avoiding the decrease in treatment efficiency or equipment blockage caused by too high sludge concentration, or the waste of reagents and increased treatment costs caused by too low concentration. When the sludge concentration detector 23 detects that the sludge concentration value of the sewage deviates from the set range, the control mechanism 4 can automatically add coagulants and flocculants.

[0062] This embodiment achieves multi-level treatment of sewage by introducing a sedimentation tank 15, a deep treatment tank 16, a sludge treatment component 17, and a sludge concentration detector 23 into the tobacco sewage dosing treatment device, thereby improving the treatment efficiency and effluent water quality.

[0063] like Figure 1 to Figure 2 As shown, in some embodiments, the dosing mechanism 3 includes an acid-base dosing component 31, a coagulation and flocculation dosing component 32, a carbon source dosing component 33 and a disinfectant dosing component 34, and the acid-base dosing component 31, the coagulation and flocculation dosing component 32, the carbon source dosing component 33 and the disinfectant dosing component 34 are all communicatively connected to the control mechanism 4.

[0064] The acid-base dosing component 31 is mainly responsible for adjusting the pH of the sewage to ensure that the chemical reactions and biological treatments in the treatment process can be carried out in a suitable acid-base environment. The acid-base dosing component 31 may include a storage container for acidic or alkaline agents, and a metering pump 37 that can accurately control the amount of agent added. In the tobacco sewage treatment device, the acid-base dosing component 31 can be selectively connected or closed with the flotation tank 12, and the pH detector 212 monitors the pH of the sewage in the flotation tank 12 in real time. The control mechanism 4 sends instructions to the acid-base dosing component 31 according to the pH detected by the pH detector 212, so that the acid-base dosing component 31 is opened to add an appropriate amount of acid-base agents to ensure the effective removal of suspended matter, and at the same time provide a suitable acid-base environment for subsequent biochemical treatment. Tobacco sewage is alkaline, and strong base calcium hydroxide can be used to adjust the pH value of the sewage.

[0065] The coagulation and flocculation dosing component 32 is used to add coagulation and flocculants. Flocculants such as polyaluminum chloride (PAC) are mainly used to remove suspended solids and colloidal impurities in sewage. Through the compression of double electric layers, adsorption and bridging, the suspended matter in the sewage is aggregated into large particles, which is convenient for subsequent precipitation or filtration. Coagulants such as polyacrylamide (PAM) can aggregate tiny particles in sludge into larger flocs through adsorption and bridging, which is convenient for dehydration.

[0066] In the process of tobacco wastewater dosing treatment, the coagulation and flocculation dosing component 32 is selectively connected or closed with the flotation tank 12 and the sludge treatment component 17, and the control mechanism 4 can adjust the dosage of the coagulation and flocculant according to the turbidity and suspended matter concentration detected by the first turbidity detector 211 of the feedforward and the second turbidity detector 221 of the feedback, so as to ensure the efficient removal of suspended matter and avoid the increase of treatment cost caused by excessive use of the agent. Among them, the coagulation and flocculation dosing component 32 can be an integrated component, and the coagulation and flocculation double-effect agent is added, or the coagulation and flocculation dosing component 32 can also include a coagulant dosing part 321 and a flocculant dosing part 322, and the coagulant dosing part 321 and the flocculant dosing part 322 can both be selectively connected or closed with the flotation tank 12, and the coagulant dosing part 321 and the flocculant dosing part 322 can both be selectively connected or closed with the sludge treatment component 17.

[0067] The carbon source dosing component 33 is used to provide industrial glucose, acetic acid and other carbon sources required for microbial growth during the biochemical treatment stage to promote the biodegradation of organic matter and improve the removal rate of pollutants such as total nitrogen and total phosphorus. The carbon source dosing component 33 is selectively connected or closed with the biochemical treatment tank 13, so that the control mechanism 4 can adjust the dosage of the carbon source agent according to the signal of the second chemical oxygen demand detector 224 to ensure the efficiency and stability of the biochemical treatment, while avoiding anaerobic fermentation and secondary pollution caused by excessive carbon source. The carbon source dosing component 33 can add a carbon source to the denitrification sand filter in the biochemical treatment tank 13 to promote the denitrification process and reduce the nitrogen content in the sewage.

[0068] The disinfectant dosing component 34 is mainly used for the disinfection of sewage, eliminating pathogenic microorganisms and ensuring the safety of effluent water. The disinfectant can be chlorine, ozone, ultraviolet rays, etc. In the tobacco sewage treatment device, the disinfectant dosing component 34 is selectively connected or closed with the disinfection tank 14, so that the control mechanism 4 can accurately control the dosage of the disinfectant according to the signal of the residual chlorine detector 225, avoid excessive or insufficient disinfectant, ensure the biological safety of the effluent water quality, and reduce the waste of disinfectants to avoid secondary pollution to the environment.

[0069] In this embodiment, through linkage with the control mechanism 4, each dosing component can adjust the dosing operation of the agent according to the real-time water quality monitoring data, thereby avoiding excessive use and waste of the agent, realizing resource conservation, and reducing the processing cost. By accurately controlling the dosing of acid and alkali, coagulation flocculant, carbon source agent and disinfectant, the efficiency and effect of each treatment link are significantly improved. For example, the removal effect of suspended matter in the flotation tank 12, the pollutant degradation efficiency of the biochemical treatment, and the elimination effect of pathogenic microorganisms in the disinfection tank 14 can all be maintained in a better state. The selective connection between the coagulation flocculation dosing component 32 and the sludge treatment component 17 can enable the coagulant and flocculant to be added in appropriate amounts during the sludge treatment process, thereby improving the efficiency of sludge concentration and dehydration, reducing the sludge volume, and reducing the cost and environmental burden of subsequent disposal. The dosing mechanism 3 can be selectively connected or closed with different treatment units, so that the tobacco wastewater dosing treatment device can flexibly adjust the use of agents according to water quality changes and treatment requirements, thereby improving the adaptability and flexibility of the tobacco wastewater treatment device, and being able to effectively cope with water quality fluctuations in different seasons and different production stages.

[0070] like Figure 1 to Figure 2 As shown, in some embodiments, the sludge treatment component 17 includes a sludge nitrification barrel 171 and a sludge dewatering machine 172 that can be selectively connected or closed, the sludge outlet of the flotation tank 12, and / or the sludge outlet of the sedimentation tank 15, and / or the sludge outlet of the deep treatment tank 16 can all be selectively connected or closed to the sludge nitrification barrel 171, and the sludge concentration detector 23 can detect the sludge concentration value in the sludge nitrification barrel 171.

[0071] The sludge nitrification barrel 171 is a device used to treat the sludge generated during the tobacco wastewater treatment process and to carry out biological nitrification reaction. Nitrification reaction refers to the process of converting ammonia nitrogen into nitrite nitrogen and further converting it into nitrate nitrogen by microorganisms under aerobic conditions. This step is crucial to reducing the nitrogen content in the sludge and reducing its impact on the environment. The sludge nitrification barrel 171 is equipped with fillers and aeration equipment suitable for the growth of nitrifying bacteria, which can provide sufficient oxygen and contact area to promote the nitrification reaction. In the tobacco wastewater treatment device, the sludge nitrification barrel 171 can be selectively connected or closed to the sludge outlet of the flotation tank 12, the sedimentation tank 15 or the deep treatment tank 16, so that the tobacco wastewater treatment device can flexibly adjust the sludge treatment process according to actual needs, thereby improving treatment efficiency and resource utilization.

[0072] In the subsequent steps of sludge treatment, the sludge dewatering machine 172 is used to further reduce the volume and moisture content of the sludge, so as to facilitate the storage, transportation and final disposal of the sludge. It usually adopts gravity concentration, belt filter press, centrifugal dewatering machine and other mechanical compression or thermal drying methods to remove the water in the sludge as much as possible while maintaining the solid components in the sludge. In the tobacco wastewater treatment device, the sludge dewatering machine 172 can be selectively connected or closed with the sludge nitrification barrel 171, and can decide whether dehydration treatment is required according to the nature and treatment requirements of the sludge after nitrification of the sludge. For example, if the moisture content of the sludge is high, the sludge dewatering machine 172 can be opened and connected with the sludge nitrification barrel 171 to guide the sludge into the dewatering machine for treatment; otherwise, it may directly enter the next step of treatment or disposal process, avoiding unnecessary energy consumption and processing time.

[0073] The sludge concentration detector 23 is used to detect the sludge concentration value at the sludge treatment component 17. Specifically, the sludge concentration detector 23 can be used to monitor the sludge concentration in the sludge nitrification barrel 171 in real time, that is, the content of solid matter in the unit volume of sludge. Sludge concentration is an important basis for evaluating the sludge treatment effect and adjusting the treatment parameters. During the sludge nitrification process, the sludge concentration detector 23 can monitor the progress of the nitrification reaction in real time and feed back to the control mechanism 4. When it is detected that the sludge concentration has dropped to a certain level, it may mean that the nitrification reaction has been completed. The sludge nitrification barrel 171 can automatically stop aeration and guide the sludge into the dewatering machine or carry out other subsequent treatments, avoiding waste of resources and redundant processing time.

[0074] This embodiment can effectively reduce the harmful nitrogen compound content in the sludge, improve the biological safety of the sludge, and at the same time, through biological treatment, achieve sludge stabilization, reduce its potential pollution to the environment, and create favorable conditions for subsequent dehydration, drying or resource utilization. The communication connection between the sludge concentration detector 23 and the control mechanism 4 enables the tobacco wastewater dosing treatment device to monitor the treatment status of the sludge in real time, and adjust the aeration volume, stirring speed and other operating parameters of the sludge nitrification barrel 171 to ensure the full progress of the nitrification reaction, while avoiding the increase in energy consumption caused by excessive treatment.

[0075] like Figure 1 to Figure 2As shown, in some embodiments, the dosing mechanism 3 includes a dosing tank 35, a liquid level detection member 36 and a metering pump 37. The dosing tank 35 is used to store medicines, that is, the dosing tank 35 is a container for storing various medicines in the tobacco wastewater treatment device, including but not limited to flocculants, coagulants, disinfectants, acid-base regulators, carbon source medicines, etc., which is convenient for adding, stirring and taking medicines. For example, the dosing tank 35 can be provided with a cleaning port, a dosing port, a water port, a sewage outlet and a liquid medicine outlet. Optionally, a stirrer 38 is provided in the dosing tank 35, and the stirrer 38 is arranged along the axial direction of the dosing tank 35. The stirrer 38 is used to stir the medicine in the dosing tank 35 to ensure uniform mixing of the medicines and improve the use efficiency and effect of the medicines.

[0076] The liquid level detection component 36 is used to detect the liquid level height of the agent in the dosing tank 35. Optionally, the liquid level detection component 36 can be, but is not limited to, an ultrasonic level gauge, a magnetic flap level gauge, or a float level gauge, which can provide accurate liquid level information to help the control system determine whether the agent needs to be replenished and the amount of replenishment. In the tobacco wastewater treatment device, the liquid level detection component 36 is connected to the control mechanism 4 for communication, and can perform real-time monitoring and intelligent feedback control, thereby avoiding excessive or insufficient consumption of the agent and ensuring the continuity and stability of the wastewater treatment process. When the liquid level is low, the liquid level detection component 36 can emit an audible and visual alarm, and stop the corresponding metering pump 37 to prevent the metering pump 37 from burning.

[0077] The metering pump 37 is a pumping device that can accurately control the dosage of the agent, and can be used to transport corrosive, high-viscosity or liquids containing solid particles. In this embodiment, the inlet of the metering pump 37 is connected to the outlet of the dosing tank 35, and the outlet can be flexibly connected to the flotation tank 12, the biochemical treatment tank 13, the disinfection tank 14 and the sludge treatment component 17. The metering pump 37 is connected to the control mechanism 4 in communication, and the metering pump 37 can accurately adjust the dosage and timing of the agent according to the control signal of the control mechanism 4, thereby ensuring the accuracy and efficiency of the agent addition. The metering pump 37 accurately transports the agent from the dosing tank 35 to the sewage according to the calculated dosage. During the dosing process, the control mechanism 4 can make fine adjustments according to real-time feedback to ensure the accuracy of the dosage. The metering pump 37 and the outlet of the dosing tank 35 can be connected through a delivery pipeline, and a Y-type filter for filtering the agent and a switch valve for regulating the flow of the agent can be provided on the delivery pipeline. The medicine and sewage outputted by the metering pump 37 can be fully mixed in a mixing mechanism such as a stirring tank to ensure that the medicine can be evenly dispersed in the sewage. The mixed sewage enters the corresponding reaction tank for chemical reaction or biological treatment to remove pollutants. At the same time, the water output indicators of each part are tracked and fed back.

[0078] In this embodiment, through the real-time monitoring of the liquid level detection element 36 and the precise addition of the metering pump 37, the tobacco wastewater treatment device can achieve accurate management of the inventory and usage of the reagent, avoid waste and excessive addition of the reagent, and also ensure the supply of the reagent in the sewage treatment process, thereby improving the economy and operation efficiency of the entire tobacco wastewater treatment device. The communication connection between the metering pump 37 and the control mechanism 4 enables the tobacco wastewater treatment device to automatically adjust the dosage and type of the reagent according to the real-time water quality monitoring data, realize the addition of the reagent to the flotation tank 12, the biochemical treatment tank 13, the disinfection tank 14 and the sludge treatment component 17, and improve the pertinence and treatment effect of the sewage treatment.

[0079] like Figures 1 to 3 As shown, the embodiment of the second aspect of the present invention provides a tobacco wastewater treatment method, which can be implemented by the tobacco wastewater treatment device in the above embodiment, and the tobacco wastewater treatment method specifically includes the following steps:

[0080] Obtain target sewage indicators and feedforward actual sewage indicators;

[0081] Determine the preset dosing parameters based on the actual sewage index and target sewage index fed forward;

[0082] According to the preset dosing parameters, dosing is performed on the processing mechanism 1;

[0083] Obtain feedback on actual sewage indicators;

[0084] According to the feedback actual sewage index and the target sewage index, the feedforward actual sewage index is corrected to obtain a corrected actual sewage index;

[0085] Determine the revised dosing parameters based on the revised actual sewage index and target sewage index;

[0086] According to the corrected dosing parameters, dosing is performed on treatment unit 1. If the actual sewage index fed back is consistent with the target sewage index, dosing is performed with the corrected dosing parameters. If the actual sewage index fed back is inconsistent with the target sewage index, the actual sewage index fed forward is corrected based on the actual sewage index fed back and the target sewage index.

[0087] Among them, the target sewage index refers to the water quality standard or parameter expected to be achieved during the sewage treatment process, including but not limited to pH value, suspended solids content, chemical oxygen demand, total nitrogen, total phosphorus, etc. These indicators can be set according to national or local environmental protection laws and regulations, industry standards and specific requirements of sewage treatment facilities. In the tobacco sewage treatment method, the target sewage index is the guiding goal of the entire treatment process to ensure that the final effluent water quality meets the discharge requirements.

[0088] The feedforward actual sewage index refers to the actual sewage index value obtained by the detection mechanism 2 such as the feedforward actual sewage index detection component 21 at the initial stage of sewage treatment, that is, before the addition of the reagent. The feedforward actual sewage index provides real-time information on the quality of the influent water, helping the control mechanism 4 to predict the treatment requirements and the dosage of the reagent. In the tobacco sewage treatment method, the acquisition of the feedforward actual sewage index is based on real-time monitoring technology, such as the first turbidity detector 211, the pH detector 212, the first total phosphorus detector 213, the first total nitrogen detector 214 and the first chemical oxygen demand detector 215, etc. These detection components are installed at the position of the regulating tank 11, which can timely and stably reflect the changes in the influent water quality.

[0089] The preset dosing parameters refer to parameters such as the agent type, dosage, dosing timing, and dosing speed determined by the control mechanism 4 through a control algorithm or other means based on the difference between the actual feedforward sewage index and the target sewage index. In the tobacco sewage treatment method, the preset dosing parameters can adjust the agent dosing strategy in advance according to the real-time changes in the influent water quality to cope with subsequent treatment.

[0090] The feedback actual sewage index refers to the actual index value of the treated sewage obtained by the detection mechanism 2 such as the feedback actual sewage index detection component 22 after the reagent is added and fully reacted. The feedback actual sewage index reflects the treatment effect of the reagent and the execution of the entire sewage treatment process. In the tobacco sewage treatment method, the acquisition of the feedback actual sewage index is based on the feedback control process, which can help the system to evaluate the treatment effect in real time and adjust the reagent addition parameters in time to ensure that the effluent water quality meets the standard.

[0091] When a deviation is detected between the actual sewage index fed back and the target sewage index, the tobacco sewage treatment method will correct the actual sewage index fed forward according to the feedback result to obtain the corrected actual sewage index. Then, the control mechanism 4 will recalculate the dosing parameters based on the new difference between the corrected actual sewage index and the target sewage index, i.e., correct the dosing parameters, and make dynamic adjustments. Through correction and adjustment, the accuracy and stability of the treatment process can be improved.

[0092] The tobacco wastewater dosing treatment method of this embodiment realizes real-time and accurate control of the agent dosing parameters through the combined use of feedforward control and feedback, ensures the rationality of the agent dosage, avoids excessive or insufficient dosing, and improves the efficiency and economy of sewage treatment. Based on the feedback of real-time water quality data, the tobacco wastewater dosing treatment method can dynamically adjust the dosing parameters, timely optimize the treatment process, adapt to the characteristics of large fluctuations in tobacco wastewater water quality, and improve the flexibility and adaptability of the system. By accurately calculating the preset and corrected dosing parameters, the tobacco wastewater dosing treatment method avoids the waste of agents, reduces agent consumption and treatment costs, and reduces secondary pollution and equipment maintenance costs caused by improper treatment. The tobacco wastewater dosing treatment method realizes continuous monitoring and correction of effluent water quality through a closed-loop control mechanism, ensures the stability of effluent water quality, avoids the problem of substandard emissions caused by water quality fluctuations, and improves the environmental compliance of the system.

[0093] In this embodiment, the tobacco wastewater dosing treatment method can use a machine learning algorithm to train a model that can predict dosing parameters based on historical feedforward actual wastewater indicators and feedback actual wastewater indicator data. When a new feedforward actual wastewater indicator is obtained, the model can quickly predict the preset dosing parameters that are closest to the target wastewater indicator and guide the treatment mechanism 1 to dosing. Subsequently, the feedback actual wastewater indicator detected by feedback is fed back to the model to correct the prediction results. Through continuous learning and optimization, this method can improve the prediction accuracy of dosing parameters, thereby improving the sewage treatment effect and efficiency.

[0094] In the tobacco wastewater treatment method, the treatment mechanism 1 can intelligently select and combine different types of agents according to the specific conditions of the actual wastewater indicators fed forward. For example, when the organic matter concentration in the influent is high, it is preferred to add highly efficient organic matter degradation agents, such as microbial agents; and when the total phosphorus content is high, the amount of phosphorus locking agents used will be increased. Through the intelligent agent combination, not only can water quality problems be solved in a targeted manner, but also the excessive use of a single agent can be reduced, costs can be optimized, and treatment effects can be improved.

[0095] The tobacco wastewater treatment method can also consider the impact of environmental factors on the wastewater treatment effect. For example, temperature, humidity and seasonal changes may affect the activity and treatment efficiency of the agent. Therefore, in this embodiment, the dosing parameters can be fine-tuned according to the environmental factor data obtained in real time. For example, under low temperature conditions in winter, the dosage of the biological agent can be appropriately increased to improve its activity and treatment effect; in seasons with high humidity, the use of flocculants can be reduced to avoid excessive water absorption affecting the flocculation effect, which can ensure that the wastewater treatment process can remain efficient and stable under various environmental conditions.

[0096] like Figures 1 to 3As shown, in some embodiments, the feedforward actual sewage index is corrected according to the feedback actual sewage index and the target sewage index to obtain a corrected actual sewage index, including:

[0097] Calculate and feedback the difference between the actual sewage index and the target sewage index, and identify the deviation of the addition effect of different reagents, where the deviation of the addition effect of different reagents includes insufficient or excessive addition amount;

[0098] According to the deviation of the dosing effect of different reagents, determine the sewage index correction parameters for the actual sewage index of the feedforward;

[0099] The corrected actual sewage index is determined based on the feedforward actual sewage index and the sewage index correction parameter.

[0100] Among them, the difference between the actual sewage index and the target sewage index reflects the degree of deviation between the sewage treatment effect and the expected target. The deviation of the dosage effect refers to the difference between the actual added agent and the expected effect on water purification. This deviation may be caused by insufficient or excessive dosage of the agent. For example, if the actual sewage index feedback shows that the chemical oxygen demand concentration is higher than the target value, this may mean that the dosage of the biodegradation agent is insufficient, and if the suspended solids content is lower than the target value, it may be that the dosage of the coagulant or flocculant is excessive, resulting in unnecessary waste of agents.

[0101] The sewage index correction parameters are a set of parameters used to adjust the actual sewage index setting values ​​of the feedforward after identifying the deviation of the dosing effect. These parameters include adjustment suggestions for the dosage and type of the reagent, aiming to make subsequent dosing decisions more accurate by fine-tuning the feedforward index to achieve the expected treatment effect.

[0102] In this embodiment, by calculating and feeding back the difference between the actual sewage index and the target sewage index, the tobacco sewage treatment method can accurately identify the deviation of the dosing effect of different agents, including the situation of insufficient or excessive dosage, which helps to adjust the dosing strategy in time and avoid poor treatment effect or cost waste caused by improper use of agents. By determining the sewage index correction parameter, the dynamic optimization adjustment of the actual sewage index of the feedforward is realized. This adjustment mechanism can quickly correct the subsequent dosing decision according to the immediate treatment effect feedback, improve the response speed and treatment accuracy of the tobacco sewage dosing treatment device, and ensure the stability of the effluent water quality and the standard discharge. By identifying and correcting the deviation of the dosing effect of different agents, the tobacco sewage dosing treatment method can avoid excessive or insufficient use of agents, improve the use efficiency of agents, and reduce the cost of agents and potential environmental pollution risks. Through the feedback control mechanism, the adaptability of the tobacco sewage treatment device to water quality fluctuations is enhanced. Even in the face of complex changes in water quality during tobacco production, the tobacco sewage treatment device can maintain the stability and efficiency of the treatment effect through real-time monitoring and adjustment.

[0103] like Figures 1 to 3 As shown, in some embodiments, the correction of the dosing parameters is determined according to the correction of the actual sewage index and the target sewage index, including:

[0104] Calculate the difference between the actual sewage index and the target sewage index to obtain the difference of the corrected sewage index;

[0105] Determine the additional parameters for dosing based on the difference in corrected sewage indicators;

[0106] According to the additional dosing parameters and the preset dosing parameters, the corrected dosing parameters are determined.

[0107] Among them, the modified actual sewage index is the predicted value of the feedforward actual sewage index obtained by correction after analysis by the control mechanism 4 based on the difference between the feedback actual sewage index and the target sewage index. The modified actual sewage index reflects the adjustment of the influent water quality prediction based on the feedback of the treatment effect that has occurred, and more accurately predicts the water quality after adjusting the dosing parameters.

[0108] Correcting the wastewater index difference refers to correcting the remaining difference between the actual wastewater index and the target wastewater index. After the initial dosing, if the feedback of the actual wastewater index and the target wastewater index still deviates, the control mechanism 4 will correct the feedforward index and recalculate the difference with the target wastewater index, i.e., correct the wastewater index difference, to ensure that the treatment process can be continuously optimized until the target wastewater index is reached.

[0109] The additional dosing parameters are the parameters such as the dosage, type and dosing time of the additional drugs calculated by the tobacco wastewater treatment device based on the initial dosing effect and the difference in the corrected sewage index. These additional parameters are intended to eliminate or reduce the difference in the corrected sewage index and further optimize the treatment effect.

[0110] Modifying dosing parameters is a new dosing strategy based on the preset dosing parameters combined with the adjustment of additional dosing parameters. Specifically, it includes adjusting the type of reagent, dosage, dosing timing and dosing speed. Modifying dosing parameters ensures that dosing decisions can accurately respond to water quality changes and improve treatment efficiency and economical use of reagents.

[0111] In this embodiment, by calculating the difference of the corrected sewage index and determining the additional dosing parameters, the tobacco sewage dosing treatment method can dynamically optimize the dosing decision. Even if the water quality is not fully up to standard after the initial dosing, it can quickly adjust, add or reduce the use of specific agents, and ensure that the water quality finally reaches the target requirements. The determination of the corrected dosing parameters is based on accurate difference calculation and additional parameter analysis, which avoids excessive or insufficient use of agents, improves the use efficiency of agents, and reduces treatment costs. The tobacco sewage dosing treatment method improves the response speed to water quality changes by quickly identifying the corrected sewage index difference and intelligently determining the additional dosing parameters, reduces the lag effect in the treatment process, and ensures the stability and timeliness of the treatment effect. By dynamically adjusting the corrected dosing parameters, the tobacco sewage dosing treatment method can more accurately control the treatment process, ensure the stability of the effluent water quality, avoid fluctuations in treatment effects or water quality exceeding the standard due to improper dosing of agents, and improve environmental compliance.

[0112] In this embodiment, the tobacco wastewater dosing treatment method calculates the difference in the corrected wastewater index by comparing the actual wastewater index with the target wastewater index in real time. Based on this difference and the preset mathematical model, the control mechanism 4 intelligently analyzes and judges to determine the type and amount of the agent that needs to be added or reduced, that is, the additional dosing parameters. These additional parameters are integrated with the preset dosing parameters to form the final corrected dosing parameters, guiding the precise dosing of the agent pump to achieve the best treatment effect. The system also has a learning function, which can optimize the model parameters through historical data and improve the prediction accuracy.

[0113] For example, the tobacco wastewater treatment method can introduce a drug optimization and adjustment mechanism based on machine learning. The tobacco wastewater treatment device uses long-term accumulated treatment data to train a prediction model that can intelligently analyze the relationship between the difference in corrected sewage indicators and the amount of drug added. When determining the corrected dosing parameters, the model will predict the optimal dosing additional parameters based on the current corrected sewage indicator difference, such as increasing flocculants and reducing disinfectants. This method can continuously optimize the drug use strategy as data accumulates, improve the efficiency of drug use, reduce costs, and ensure more optimized treatment effects.

[0114] like Figures 1 to 3 As shown, in some embodiments, the preset dosing parameters are determined according to the actual sewage index and the target sewage index, including:

[0115] Calculate the difference between the actual feedforward sewage index and the target sewage index to obtain the feedforward sewage index difference;

[0116] According to the feedforward sewage index difference, the preset dosing parameters are determined, wherein the preset dosing parameters include the type of agent, dosage, dosing timing and dosing speed.

[0117] Among them, the feedforward actual sewage index is the predicted value of the sewage quality index before adding the medicine, and the sewage is monitored in real time through sensors.

[0118] The feedforward sewage index difference refers to the difference between the actual feedforward sewage index and the target sewage index. This difference is the basis for the control mechanism 4 to calculate the preset dosing parameters, reflects the gap between the current sewage quality and the expected target, and provides a quantitative benchmark for the selection of reagents and the calculation of dosage.

[0119] The preset dosing parameters are the agent dosing strategies pre-set by the control mechanism 4 according to the results of the water quality difference analysis, including the types of agents such as flocculants, disinfectants, acid-base regulators, etc., the dosage, the timing of dosing and the acceleration of dosing. The dosage refers to the amount of agent calculated based on the difference in sewage indicators, the timing of dosing refers to when to start dosing the agent, and the dosing acceleration refers to the instantaneous acceleration rate of the agent.

[0120] When determining the preset dosing parameters, the tobacco wastewater dosing treatment method first obtains the current feedforward actual sewage indicators through real-time monitoring. Then, the tobacco wastewater dosing treatment device compares these indicators with the target sewage indicators and calculates the feedforward sewage indicator difference, which reflects the gap between the influent water quality and the target sewage indicators. Based on this difference, the tobacco wastewater dosing treatment device uses a preset mathematical model and control algorithm to intelligently analyze and judge to determine the initial dosing strategy, that is, the preset dosing parameters, including the type of agent to be added, the specific dosage, the timing of addition, and the speed of agent addition.

[0121] By calculating the feedforward sewage index difference, the tobacco sewage dosing treatment method of this embodiment can predict the gap between the water quality and the target sewage index in advance, adjust the dosing strategy in time, prevent the water quality from exceeding the standard, and improve the initiative and preventive control ability of the treatment. The determination of the preset dosing parameters is based on accurate difference calculation and intelligent algorithm analysis, which ensures the accuracy and rationality of the agent addition, avoids excessive or insufficient use of the agent, and improves the use efficiency of the agent.

[0122] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A tobacco wastewater dosing treatment device, characterized in that: The tobacco wastewater dosing treatment device comprises: The treatment mechanism (1) comprises a regulating tank (11), an air flotation tank (12), a biochemical treatment tank (13) and a disinfection tank (14) which are sequentially arranged along a sewage treatment path; The detection mechanism (2) comprises a feedforward actual sewage index detection component (21) and a feedback actual sewage index detection component (22), wherein the feedforward actual sewage index detection component (21) is used to detect the sewage index of the regulating tank (11), and the feedback actual sewage index detection component (22) is used to detect the sewage index at the water outlet of the flotation tank (12) and at the disinfection tank (14); A dosing mechanism (3), wherein the dosing mechanism (3) can be selectively connected to or closed from the flotation tank (12), the biochemical treatment tank (13), and the disinfection tank (14); The control mechanism (4), the detection mechanism (2) and the drug adding mechanism (3) are all connected to the control mechanism (4) for communication.

2. The tobacco wastewater treatment device according to claim 1, characterized in that: The feedforward actual sewage index detection component (21) comprises: a first turbidity detector (211), used to detect the turbidity of sewage in the regulating tank (11); and / or, A pH detector (212) for detecting the pH of the sewage in the regulating tank (11); and / or, A first total phosphorus detector (213), a first total nitrogen detector (214) and a first chemical oxygen demand detector (215), wherein the first total phosphorus detector (213) is used to detect the total phosphorus content of the sewage in the regulating tank (11), the first total nitrogen detector (214) is used to detect the total nitrogen content of the sewage in the regulating tank (11), and the first chemical oxygen demand detector (215) is used to detect the chemical oxygen demand of the sewage in the regulating tank (11).

3. The tobacco wastewater treatment device according to claim 1, characterized in that: The feedback actual sewage index detection component (22) comprises: a second turbidity detector (221), used to detect the turbidity of sewage at the outlet of the flotation tank (12); and / or, a second total phosphorus detector (222), a second total nitrogen detector (223) and a second chemical oxygen demand detector (224), wherein the second total phosphorus detector (222) is used to detect the total phosphorus content of the sewage in the disinfection tank (14), the second total nitrogen detector (223) is used to detect the total nitrogen content of the sewage in the disinfection tank (14), and the second chemical oxygen demand detector (224) is used to detect the chemical oxygen demand of the sewage in the disinfection tank (14); and / or, The residual chlorine detector (225) is used to detect the residual chlorine value of the sewage in the disinfection tank (14).

4. The tobacco wastewater treatment device according to claim 1, characterized in that: The treatment mechanism (1) further comprises a sedimentation tank (15), a deep treatment tank (16) and a sludge treatment assembly (17); the water inlet of the sedimentation tank (15) and the water outlet of the biochemical treatment tank (13) can be selectively connected or closed, the water outlet of the sedimentation tank (15) and the water inlet of the deep treatment tank (16) can be selectively connected or closed, and the water outlet of the deep treatment tank (16) and the water inlet of the disinfection tank (14) can be selectively connected or closed; The scum outlet of the flotation tank (12), and / or the sludge outlet of the sedimentation tank (15), and / or the sludge outlet of the deep treatment tank (16) can be selectively connected to or closed with the sludge treatment component (17), and the dosing mechanism (3) can be selectively connected to or closed with the sludge treatment component (17); The detection mechanism (2) further comprises a sludge concentration detector (23) for detecting the sludge concentration value at the sludge treatment component (17); the sludge concentration detector (23) is communicatively connected with the control mechanism (4).

5. The tobacco wastewater treatment device according to claim 4, characterized in that: The drug adding mechanism (3) comprises: an acid-base dosing component (31), wherein the acid-base dosing component (31) can be selectively connected to or closed from the flotation tank (12); and / or, A coagulation and flocculation dosing component (32), wherein the coagulation and flocculation dosing component (32) can be selectively connected or closed to the flotation tank (12) and the sludge treatment component (17); and / or, A carbon source dosing component (33), wherein the carbon source dosing component (33) can be selectively connected to or closed from the biochemical treatment tank (13); and / or, A disinfectant dosing component (34) is capable of selectively connecting or closing with the disinfection tank (14).

6. The tobacco wastewater treatment device according to claim 4, characterized in that: The sludge treatment component (17) comprises a sludge nitrification barrel (171) and a sludge dewatering machine (172) which can be selectively connected or closed. The sludge outlet of the flotation tank (12), and / or the sludge outlet of the sedimentation tank (15), and / or the sludge outlet of the deep treatment tank (16) can all be selectively connected or closed to the sludge nitrification barrel (171). The sludge concentration detector (23) can detect the sludge concentration value in the sludge nitrification barrel (171).

7. The tobacco wastewater treatment device according to claim 4, characterized in that: The drug adding mechanism (3) comprises: A medicine adding tank (35) for storing medicine; A liquid level detection member (36) for detecting the liquid level in the dosing tank (35); a metering pump (37), wherein the inlet of the metering pump (37) is connected to the outlet of the dosing tank (35), the outlet of the metering pump (37) can be connected to the flotation tank (12), the biochemical treatment tank (13), the disinfection tank (14) and the sludge treatment component (17), and the metering pump (37) and the liquid level detection element (36) are both connected to the control mechanism (4) in communication; Wherein, a stirrer (38) is arranged in the dosing tank (35), and the stirrer (38) is arranged along the axial direction of the dosing tank (35), and the stirrer (38) is used to stir the medicine in the dosing tank (35).

8. A method for treating tobacco wastewater by adding chemicals, characterized in that: The tobacco wastewater treatment method comprises: Obtain target sewage indicators and feedforward actual sewage indicators; Determining preset dosing parameters according to the feedforward actual sewage index and the target sewage index; Adding medicine to the processing mechanism according to the preset medicine adding parameters; Obtain feedback on actual sewage indicators; According to the feedback actual sewage index and the target sewage index, the feedforward actual sewage index is corrected to obtain a corrected actual sewage index; Determining a revised dosing parameter according to the revised actual sewage index and the target sewage index; According to the corrected dosing parameters, the treatment mechanism is dosed. If the feedback actual sewage index is consistent with the target sewage index, the corrected dosing parameters are maintained for dosing. If the feedback actual sewage index is inconsistent with the target sewage index, the feedforward actual sewage index is corrected again based on the feedback actual sewage index and the target sewage index.

9. The tobacco wastewater treatment method according to claim 8, characterized in that: According to the feedback actual sewage index and the target sewage index, the feedforward actual sewage index is corrected to obtain a corrected actual sewage index, including: Calculate the difference between the actual sewage index and the target sewage index, and identify the deviation of the addition effect of different reagents, wherein the deviation of the addition effect of different reagents includes insufficient or excessive addition amount; According to the deviation of the addition effect of different reagents, determining the sewage index correction parameter for the feedforward actual sewage index; The corrected actual sewage index is determined according to the feedforward actual sewage index and the sewage index correction parameter.

10. The tobacco wastewater treatment method according to claim 8 or 9, characterized in that: According to the corrected actual sewage index and the target sewage index, the corrected dosing parameters are determined, including: Calculating the difference between the corrected actual sewage index and the target sewage index to obtain a corrected sewage index difference; Determining additional parameters for dosing based on the corrected sewage index difference; According to the additional dosing parameters and the preset dosing parameters, a revised dosing parameter is determined.

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