Integrated sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, in particular to an integrated sewage treatment device which comprises a cylindrical water inlet tank; the rectangular flocculation tank is communicated with the water inlet tank; a flocculation assembly is arranged at the top of the flocculation tank; the flocculation tank is sequentially provided with a first water pipe, a second water pipe and a third water pipe; a data acquisition module; the judging module is used for judging whether sewage treatment meets a preset standard according to an attenuation coefficient of a turbidity curve of a flocculation tank; the control module is used for determining an adjustment strategy under the condition that sewage treatment does not meet a preset standard according to the water body gray scale standard deviation of the flocculation tank; the parameter adjusting module is used for reducing the valve opening degree of the first valve body according to the difference value between the particle size proportion and the preset particle size proportion. The sewage treatment efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an integrated sewage treatment device. Background Art

[0002] Sewage generally refers to polluted water from domestic and industrial sources. It primarily includes domestic sewage, industrial wastewater, and initial rainwater. Major pollutants in sewage include pathogens, oxygen-depleting pollutants, plant nutrients, and toxic pollutants. Depending on its source, sewage can be defined as liquid or water containing waste, discharged from residential, institutional, commercial, or industrial areas and mixed with groundwater, surface water, or stormwater. Currently, much domestic sewage is discharged directly into the environment, causing serious environmental impacts.

[0003] Flocculation, a core step in wastewater purification, directly impacts subsequent sedimentation and filtration efficiency. Traditional flocculation process control relies primarily on manual experience or single-parameter feedback, resulting in delayed response and insufficient adjustment precision.

[0004] Chinese patent application publication number CN111087138A discloses a sewage treatment device comprising: an odor removal chamber; a flocculation chamber with a flocculation concentration detector and a timer at the bottom; a filtration chamber with a return pipe connected between the bottom and top sidewalls and a filtration concentration detector at the bottom; a biological treatment chamber with an oxygen concentration detector; a sterilization chamber; a residue treatment chamber; and a central control processor with preset values ​​pre-stored within it. The invention provides valves between the chambers to allow each chamber to independently treat sewage. Each chamber is equipped with a designated detector. By comparing the detection data with pre-stored data, the valve is opened and closed based on the comparison result. This allows the previous chamber to transfer sewage to the next chamber if the sewage treatment meets the standard. This ensures that the corresponding impurity content in the sewage in each chamber is reduced to the standard value after treatment using the designated process, thereby improving the overall treatment efficiency of the sewage treatment device.

[0005] It can be seen that in the above technical solution, the flocculation tank is only equipped with a concentration detector, and the flocculation process parameters and the proportion of effluent particle size are not taken into consideration, which affects the accuracy of the flocculation effect evaluation, causes the sewage treatment regulation to lag, and thus leads to the problem of low sewage treatment efficiency. Summary of the Invention

[0006] To this end, the present invention provides an integrated sewage treatment device to overcome the problem in the prior art that the flocculation bin is only equipped with a concentration detector, does not consider the flocculation process parameters and the proportion of effluent particle size, affects the accuracy of flocculation effect evaluation, causes sewage treatment regulation to lag, and thus leads to low sewage treatment efficiency.

[0007] To achieve the above objectives, the present invention provides an integrated sewage treatment device, comprising: A cylindrical water inlet trough; a rectangular flocculation tank communicating with the water inlet trough; a flocculation assembly disposed on top of the flocculation tank; a first water pipe, a second water pipe, and a third water pipe for sewage return are sequentially disposed at the end of the flocculation tank away from the water inlet trough; the end of the second water pipe away from the flocculation tank is connected to a detection tank; A data acquisition module, comprising an image acquisition unit provided on the inner wall of the flocculation tank and a particle size acquisition unit provided on the detection tank; a control module connected to the data acquisition module, configured to determine whether the sewage treatment meets the preset standard based on the particle size ratio in the detection tank under the condition that the attenuation coefficient of the turbidity curve of the flocculation tank is greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient, and to determine whether the sewage treatment meets the preset standard for the second time based on the particle size ratio in the detection tank; and to determine an adjustment strategy under the condition that the sewage treatment does not meet the preset standard based on the grayscale standard deviation of the water body in the flocculation tank; A parameter adjustment module is connected to the control module and is used to reduce the valve opening of the first valve body according to the difference between the particle size ratio and the preset particle size ratio under the condition that the particle size ratio is greater than or equal to the preset particle size ratio.

[0008] Furthermore, the flocculation component includes a support platform arranged on the top of the flocculation tank and a dosing pump arranged on the support platform, and the dosing pump is bolted to the support platform; the dosing pump is filled with flocculant, and the flocculant is added into the flocculation tank to condense fine particles and natural colloids in the sewage.

[0009] Furthermore, the first water pipe is connected to the water storage tank and the end of the third water pipe away from the flocculation tank is connected to the water inlet tank; the first water pipe is provided with a first valve body, the second water pipe is provided with a second valve body, and the third water pipe is provided with a water pump.

[0010] Furthermore, the control module determines whether the sewage treatment meets the preset standard according to the attenuation coefficient of the turbidity curve of the flocculation tank, wherein: If the attenuation coefficient is less than the first preset attenuation coefficient, it is determined that the sewage treatment does not meet the preset standard, and an adjustment strategy is determined under the condition that the sewage treatment does not meet the preset standard according to the grayscale standard deviation of the water body; If the attenuation coefficient is greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient, it is determined that the sewage treatment meets the preset standard, and a secondary determination is made as to whether the sewage treatment meets the preset standard based on the suspended solids concentration in the detection tank; If the attenuation coefficient is greater than or equal to the second preset attenuation coefficient, it is determined that the sewage treatment meets the preset standard.

[0011] Further, the attenuation coefficient of the flocculation tank is obtained by collecting a turbidity curve by the image acquisition unit and performing exponential function fitting on the curve, wherein the abscissa of the turbidity curve is the length direction distance of the flocculation tank, and the ordinate of the turbidity curve is the turbidity value.

[0012] Further, the control module determines whether the sewage treatment meets the preset standard according to the particle size proportion in the water body of the detection pool. If the particle size proportion is less than the preset particle size proportion, it is determined that the sewage treatment meets the preset standard. If the particle size proportion is greater than or equal to the preset particle size proportion, it is determined that the sewage treatment does not meet the preset standard, and the parameter adjustment module reduces the valve opening degree of the first valve body according to the difference between the particle size proportion and the preset particle size proportion.

[0013] Further, the particle size proportion of the detection pool is the ratio of the number of particles with a particle size greater than a preset particle size to the total number of particles in the water body of the detection pool.

[0014] Further, the parameter adjustment module sets several opening degree adjustment modes for the reduction of the valve opening degree of the first valve body, and each opening degree adjustment mode has a different reduction amplitude of the valve opening degree of the first valve body.

[0015] Further, the control module determines the adjustment strategy under the condition that the sewage treatment does not meet the preset standard according to the water body gray scale standard deviation of the flocculation tank. If the water body gray scale standard deviation is less than a preset gray scale standard deviation, the water pump is started to perform backflow. If the water body gray scale standard deviation is greater than or equal to the preset gray scale standard deviation, the flocculant dosage of the dosing pump is increased according to the ratio of the preset gray scale standard deviation to the water body gray scale standard deviation. The water body gray scale standard deviation is obtained by the image acquisition unit.

[0016] Further, the increase amplitude of the flocculant dosage of the dosing pump is positively correlated with the gray scale standard deviation ratio, wherein the gray scale standard deviation ratio is the ratio of the preset gray scale standard deviation to the water body gray scale standard deviation.

[0017] Compared with the prior art, the beneficial effect of the present invention lies in that the present invention realizes real-time collection of the turbidity curve of the flocculation tank and the particle size data of the detection tank by integrating a cylindrical water inlet tank, a rectangular flocculation tank and a detection tank, and matching it with a data acquisition module composed of an image acquisition unit and a particle size acquisition unit. The control module performs graded judgment based on the attenuation coefficient of the turbidity curve and the particle size ratio. When the standard is not met, the dosage or reflux volume is intelligently adjusted according to the grayscale standard deviation of the water body. When the attenuation coefficient meets the standard but is in the middle range, a secondary judgment is made based on the particle size ratio and the opening of the first valve body is controlled by the parameter adjustment module. At the same time, the dosing pump can flexibly add flocculants, and the delivery reflux formed by the third water pipe and the corresponding water pump strengthens the treatment process. The positive correlation design between the grayscale standard deviation and the increase in the dosage realizes precise dosage of the agent, thereby improving the sewage treatment efficiency.

[0018] Furthermore, the present invention effectively balances water flow distribution and reduces turbulent disturbance through the combined design of the cylindrical water inlet trough and the rectangular flocculation trough, thereby improving the contact efficiency between the flocculant and the pollutants.

[0019] Furthermore, the present invention realizes the diversion of water bodies at different levels through the graded discharge design of three-level water pipes (first, second, and third water pipes). The top clean water enters the water storage tank through the first water pipe. The second water pipe between the first and third water pipes is connected to the detection tank, which specifically extracts water from the middle transition zone of the flocculation tank and monitors the stratification state of flocculation sedimentation in real time, thereby improving the detection reliability.

[0020] Furthermore, the present invention realizes an accurate quantitative evaluation of the sewage treatment effect by combining a graded judgment mechanism that compares the turbidity curve of the flocculation tank with a preset standard with the attenuation coefficient obtained by exponential function fitting of the turbidity curve collected by the image acquisition unit: a three-level judgment is performed with the attenuation coefficient as the core indicator. When the attenuation coefficient is less than the first preset value, the dosage is dynamically adjusted or reflux is performed in combination with the grayscale standard deviation of the water body to solve the problems of insufficient agent or uneven distribution of flocs; when the attenuation coefficient is in the middle range, a secondary judgment is made by detecting the suspended matter concentration in the pool to avoid misjudgment of a single parameter; and the attenuation coefficient is obtained through image acquisition and exponential fitting, which can intuitively reflect the attenuation trend of turbidity along the length direction of the flocculation tank, thereby realizing dynamic monitoring of the spatial distribution of the flocculation effect.

[0021] Furthermore, the present invention uses the particle size ratio as a microscopic quantitative indicator of the flocculation effect, which can accurately judge the coagulation state of the flocs. By utilizing the stratification characteristics of the water body in the flocculation tank, the water body in the middle transition zone is regarded as the intermediate state between the clear water layer and the floc layer, and its particle size ratio can intuitively reflect the water quality stability of the upper clear water layer; if the particle size ratio of the middle transition zone is less than the preset value, it indicates that the flocs have been fully precipitated, and the water quality of the upper clear water layer must be better, thereby indirectly verifying that the top clear water extracted by the first water pipe meets the standards; this design avoids the detection error caused by water level fluctuations and water flow disturbances when directly detecting the top clear water layer, and infers the top water quality with more stable particle size data through real-time monitoring of the representative area in the middle, thereby improving the reliability of the judgment; at the same time, the parameter adjustment module dynamically reduces the valve opening of the first valve body according to the difference in particle size ratio, which can delay the top drainage when the middle particle size does not meet the standard, thereby improving the stability of the effluent water quality.

[0022] Furthermore, the present invention realizes precise control of the flocculant dosage by providing a dosing pump, and the increase range of the flocculant dosage is positively correlated with the grayscale standard deviation ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an integrated sewage treatment device according to an embodiment of the present invention; Figure 2 A top view of the connection between the water inlet tank and the flocculation tank according to an embodiment of the present invention; Figure 3 This is a flow chart of an embodiment of the present invention for determining whether sewage treatment meets preset standards based on the attenuation coefficient of the turbidity curve of the flocculation tank; Figure 4 A flowchart of an embodiment of the present invention for determining an adjustment strategy when sewage treatment does not meet a preset standard; In the figure, 1. water inlet tank; 2. flocculation tank; 301. support platform; 302. dosing pump; 4. first water pipe; 5. second water pipe; 6. third water pipe; 7. detection pool; 8. image acquisition unit; 9. first valve body; 10. second valve body; 11. water pump; 12. water storage tank. DETAILED DESCRIPTION

[0024] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0026] It should be pointed out that the data in this embodiment are all obtained by comprehensive analysis and evaluation of the historical test data of the present invention in the three months before this test and the corresponding historical test results. Those skilled in the art can understand that the present invention can determine the above parameters for a single item by selecting the value with the highest proportion as the preset standard parameter based on the data distribution, using weighted summation to use the obtained value as the preset standard parameter, substituting each historical data into a specific formula and using the value obtained by the formula as the preset standard parameter or other selection methods, as long as the method of the present invention can clearly define the different specific situations in the single determination process through the obtained values.

[0027] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 As shown, they are respectively a structural schematic diagram of an integrated sewage treatment device according to an embodiment of the present invention; a top view of the connection between the water inlet tank and the flocculation tank according to an embodiment of the present invention; a flow chart of determining whether sewage treatment meets the preset standard based on the attenuation coefficient of the turbidity curve of the flocculation tank according to an embodiment of the present invention; and a flow chart of an adjustment strategy for determining sewage treatment under the condition that the sewage treatment does not meet the preset standard according to an embodiment of the present invention.

[0028] An embodiment of the present invention provides an integrated sewage treatment device, comprising: A cylindrical water inlet tank 1; a rectangular flocculation tank 2 communicating with the water inlet tank 1; a flocculation assembly disposed on top of the flocculation tank 2; a first water pipe 4, a second water pipe 5, and a third water pipe 6 for wastewater return are sequentially provided at the end of the flocculation tank 2 away from the water inlet tank 1; the end of the second water pipe 5 away from the flocculation tank 2 is connected to a detection tank 7; The data acquisition module includes an image acquisition unit 8 provided on the inner wall of the flocculation tank 2 and a particle size acquisition unit provided in the detection tank 7; a control module connected to the data acquisition module, for determining, under the condition that the sewage treatment meets the preset standard based on the attenuation coefficient of the turbidity curve of the flocculation tank 2 being greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient, a secondary determination of whether the sewage treatment meets the preset standard based on the particle size ratio of the detection tank 7; and for determining, based on the grayscale standard deviation of the water body in the flocculation tank 2, an adjustment strategy when the sewage treatment does not meet the preset standard; The parameter adjustment module is connected to the control module and is used to reduce the valve opening of the first valve body 9 according to the difference between the particle size ratio and the preset particle size ratio under the condition that the particle size ratio is greater than or equal to the preset particle size ratio.

[0029] Specifically, the specific structure of the control module and the parameter adjustment module is not limited, and each unit thereof can be composed of a logic component including a field programmable component, a computer or a microprocessor in the computer.

[0030] Specifically, the image acquisition unit 8 is an industrial camera with a waterproof cover, and the particle size acquisition unit is a laser particle size analyzer, wherein the industrial camera is uniformly arranged on the inner wall of the flocculation tank 2 to collect the water turbidity distribution image in the flocculation tank 2 in real time.

[0031] Specifically, the first water pipe 4 is arranged on the upper side wall of the flocculation tank 2 and is located at a total water depth of 5%-10% below the water surface of the flocculation tank 2 to extract supernatant after flocculation is completed; the second water pipe 5 is located below the first water pipe 4 and is located at a total water depth of 30%-50% from the water surface to detect whether there is a problem of incomplete pollution removal in the top water body and trigger the valve opening adjustment of the first valve body 9; the third water pipe 6 is arranged at a total water depth of 90%-95% to return sewage. In this embodiment, the first water pipe 4 is located at a total water depth of 5% below the water surface of the flocculation tank 2, the second water pipe 5 is located at a total water depth of 50% from the water surface, and the third water pipe 6 is arranged at a total water depth of 90%.

[0032] Specifically, a sewage discharge valve is further arranged on the side wall of the flocculation tank 2 below the third water pipe 6.

[0033] Specifically, the flocculation assembly includes a support table 301 arranged on the top of the flocculation tank 2 and a dosing pump 302 arranged on the support table 301, and the dosing pump 302 is bolted to the support table 301; the dosing pump 302 is internally provided with a flocculant, and the flocculant is added into the flocculation tank 2 to agglomerate fine particles and natural colloidal particles in the sewage.

[0034] In this embodiment, the support table 301 is welded to the top of the flocculation tank 2, the dosing amount of the dosing pump 302 ranges from 0.1 L / min to 5 L / min, and the dosing pump 302 is internally provided with a polyaluminum chloride flocculant.

[0035] Specifically, the first water pipe 4 is connected with the water storage tank 12, and the end of the third water pipe 6 away from the flocculation tank 2 is connected with the water inlet tank 1; the first water pipe 4 is provided with the first valve body 9, the second water pipe 5 is provided with the second valve body 10, and the third water pipe 6 is provided with the water pump 11.

[0036] It should be noted that the data in this embodiment are the results obtained by the present invention through preliminary experimental verification before the current test. The preset values ​​can be adjusted according to the specific usage, as long as the present invention can clearly define the different specific situations in the single determination process through the obtained values. The preset values ​​set in this embodiment are all obtained based on preliminary experiments, including the various correction coefficients, which were also selected through experimental verification.

[0037] Specifically, the control module determines whether the sewage treatment meets the preset standard according to the attenuation coefficient of the turbidity curve of the flocculation tank 2, wherein: If the attenuation coefficient is less than the first preset attenuation coefficient 0.08m -1 , it is determined that the sewage treatment does not meet the preset standards, and the adjustment strategy under the condition that the sewage treatment does not meet the preset standards is determined according to the grayscale standard deviation of the water body; If the attenuation coefficient is greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient 0.12m -1 , it is determined that the sewage treatment meets the preset standards, and the sewage treatment is secondarily determined to meet the preset standards based on the suspended solids concentration in the detection tank 7; If the attenuation coefficient is greater than or equal to the second preset attenuation coefficient, it is determined that the sewage treatment meets the preset standard.

[0038] In this embodiment, the first preset attenuation coefficient is selected as 0.08m -1 , the second preset attenuation coefficient is selected as 0.12m -1 However, the above value is not limited thereto, and those skilled in the art can also adjust the value according to actual needs.

[0039] Specifically, the attenuation coefficient of the flocculation tank is obtained by fitting the turbidity curve collected by the image acquisition unit through an exponential function using MATLAB, wherein the abscissa of the turbidity curve is the length of the flocculation tank, and the ordinate of the turbidity curve is the turbidity value.

[0040] Specifically, the control module determines whether the sewage treatment meets the preset standards based on the particle size ratio in the water body of the detection pool. If the particle size ratio is less than the preset particle size ratio of 0.35, the sewage treatment is judged to meet the preset standards; If the particle size ratio is greater than or equal to the preset particle size ratio, it is determined that the sewage treatment does not meet the preset standard, and the parameter adjustment module reduces the valve opening of the first valve body 9 according to the difference between the particle size ratio and the preset particle size ratio.

[0041] Specifically, the particle size proportion of the detection tank 7 is the ratio of the number of particles with a particle size greater than the preset particle size 50 pm to the total number of particles in the water body of the detection tank 7. The particle size in the water body of the detection tank 7 is obtained by the particle size acquisition unit.

[0042] In this embodiment, the preset particle size proportion is selected as 0.35, but the above value is not limited thereto, and those skilled in the art can also adjust the value according to actual needs.

[0043] Specifically, the parameter adjustment module is provided with several opening adjustment modes for the reduction of the valve opening of the first valve body 9, wherein, If the particle size difference is less than the first preset particle size difference 0.09, the parameter adjustment module reduces the valve opening of the first valve body 9 using the first preset opening adjustment coefficient 0.85; If the particle size difference is greater than or equal to the first preset particle size difference and less than the second preset particle size difference 0.15, the parameter adjustment module reduces the valve opening of the first valve body 9 using the second opening adjustment coefficient 0.9; If the particle size difference is greater than or equal to the second preset particle size difference, the parameter adjustment module reduces the valve opening of the first valve body 9 using the third opening adjustment coefficient 0.95; The particle size difference is the difference between the particle size proportion and the preset particle size proportion.

[0044] Specifically, the control module determines the adjustment strategy under the condition that the sewage treatment does not meet the preset standard according to the water body gray scale standard deviation of the flocculation tank 2, wherein, If the water body gray scale standard deviation is less than the preset gray scale standard deviation 25, the water pump 11 is started to perform backflow; If the water body gray scale standard deviation is greater than or equal to the preset gray scale standard deviation, the flocculant dosage of the dosing pump 302 is increased according to the ratio of the preset gray scale standard deviation to the water body gray scale standard deviation; The water body gray scale standard deviation is obtained by the image acquisition unit 8. The image acquisition unit 8 on the inner wall of the flocculation tank 2 captures a panoramic image of the water body in real time, and the gray scale standard deviation of the whole image is calculated by OpenCV.

[0045] In this embodiment, the preset gray scale standard deviation is selected as 25, but the above value is not limited thereto, and those skilled in the art can also adjust the value according to actual needs.

[0046] Specifically, the grayscale standard deviation of the water body reflects the spatial distribution difference of the turbidity of the water body in the flocculation tank 2. When the grayscale standard deviation is less than the preset grayscale standard deviation, it means that the turbidity of the water body in the flocculation tank 2 is relatively uniform and the overall turbidity is high. This usually indicates that the mixing effect of the flocculant and the sewage is not good, or the amount of flocculant is not enough to fully destabilize and aggregate the suspended particles in the sewage. At this time, the water pump 11 is turned on for reflux, and part of the treated sewage is sent back to the water inlet tank 1 for reprocessing. This can increase the number of contacts and mixing time between the sewage and the flocculant, thereby strengthening the flocculation reaction. When the grayscale standard deviation of the water is greater than or equal to the preset value, it indicates that the turbidity distribution of the water in the flocculation tank is uneven, with some areas of high turbidity and some areas of low turbidity. These areas of high turbidity are due to insufficient flocculant concentration, which prevents the suspended particles from fully agglomerating. In this case, increase the flocculant dosage from dosing pump 302 and dynamically adjust the dosage to ensure optimal flocculation of the wastewater throughout the flocculation tank 2.

[0047] Specifically, the increase in the amount of flocculant added by the dosing pump 302 is positively correlated with the grayscale standard deviation ratio, wherein the positive correlation can be, for example, a linear positive correlation or a nonlinear positive correlation, and the linear slope of the linear positive correlation is not specifically limited. It can be understood that the larger the grayscale standard deviation ratio is, the greater the increase in the amount of flocculant added by the dosing pump 302 is; the grayscale standard deviation ratio is the ratio of the preset grayscale standard deviation to the grayscale standard deviation of the water body.

[0048] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0049] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An integrated sewage treatment device, characterized in that: include: A cylindrical water inlet trough; a rectangular flocculation tank communicating with the water inlet trough; a flocculation assembly disposed on top of the flocculation tank; a first water pipe, a second water pipe, and a third water pipe for sewage return are sequentially disposed at the end of the flocculation tank away from the water inlet trough; the end of the second water pipe away from the flocculation tank is connected to a detection tank; A data acquisition module, comprising an image acquisition unit provided on the inner wall of the flocculation tank and a particle size acquisition unit provided on the detection tank; a control module connected to the data acquisition module, configured to determine whether the sewage treatment meets the preset standard based on the particle size ratio in the detection tank under the condition that the attenuation coefficient of the turbidity curve of the flocculation tank is greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient, and to determine whether the sewage treatment meets the preset standard for the second time based on the particle size ratio in the detection tank; and to determine an adjustment strategy under the condition that the sewage treatment does not meet the preset standard based on the grayscale standard deviation of the water body in the flocculation tank; A parameter adjustment module is connected to the control module and is used to reduce the valve opening of the first valve body according to the difference between the particle size ratio and the preset particle size ratio under the condition that the particle size ratio is greater than or equal to the preset particle size ratio.

2. The integrated sewage treatment device according to claim 1, characterized in that: The flocculation assembly includes a support platform arranged on the top of the flocculation tank and a dosing pump arranged on the support platform, and the dosing pump is bolted to the support platform; the dosing pump is filled with flocculant, and the flocculant is added into the flocculation tank to condense fine particles and natural colloids in the sewage.

3. The integrated sewage treatment device according to claim 1, characterized in that: The first water pipe is connected to the water storage tank and the end of the third water pipe away from the flocculation tank is connected to the water inlet tank; the first water pipe is provided with a first valve body, the second water pipe is provided with a second valve body, and the third water pipe is provided with a water pump.

4. The integrated sewage treatment device according to claim 3, characterized in that: The control module determines whether the sewage treatment meets the preset standard according to the attenuation coefficient of the turbidity curve of the flocculation tank, wherein: If the attenuation coefficient is less than the first preset attenuation coefficient, it is determined that the sewage treatment does not meet the preset standard, and an adjustment strategy is determined under the condition that the sewage treatment does not meet the preset standard according to the grayscale standard deviation of the water body; If the attenuation coefficient is greater than or equal to the first preset attenuation coefficient and less than the second preset attenuation coefficient, it is determined that the sewage treatment meets the preset standard, and a secondary determination is made as to whether the sewage treatment meets the preset standard based on the suspended solids concentration in the detection tank; If the attenuation coefficient is greater than or equal to the second preset attenuation coefficient, it is determined that the sewage treatment meets the preset standard.

5. The integrated sewage treatment device according to claim 4, characterized in that: The attenuation coefficient of the flocculation tank is obtained by fitting the turbidity curve collected by the image acquisition unit with an exponential function, wherein the abscissa of the turbidity curve is the length of the flocculation tank, and the ordinate of the turbidity curve is the turbidity value.

6. The integrated sewage treatment device according to claim 5, characterized in that: The control module determines whether the sewage treatment meets the preset standards based on the particle size ratio in the water body of the detection pool. If the particle size ratio is less than the preset particle size ratio, it is determined that the sewage treatment meets the preset standards; If the particle size ratio is greater than or equal to the preset particle size ratio, it is determined that the sewage treatment does not meet the preset standard, and the parameter adjustment module reduces the valve opening of the first valve body according to the difference between the particle size ratio and the preset particle size ratio.

7. The integrated sewage treatment device according to claim 6, characterized in that: The particle size ratio of the detection pool is the ratio of the number of particles with a particle size larger than a preset particle size to the total number of particles in the water body of the detection pool.

8. The integrated sewage treatment device according to claim 7, characterized in that: The parameter adjustment module is provided with several opening adjustment modes for reducing the valve opening of the first valve body, and each opening adjustment mode reduces the valve opening of the first valve body by a different amount.

9. The integrated sewage treatment device according to claim 8, characterized in that: The control module determines an adjustment strategy under the condition that the sewage treatment does not meet the preset standard according to the grayscale standard deviation of the water body in the flocculation tank, wherein: If the grayscale standard deviation of the water body is less than the preset grayscale standard deviation, the water pump is turned on for reflux; If the grayscale standard deviation of the water body is greater than or equal to the preset grayscale standard deviation, the amount of flocculant added by the dosing pump is increased according to the ratio of the preset grayscale standard deviation to the grayscale standard deviation of the water body; The water body grayscale standard deviation is obtained by the image acquisition unit.

10. The integrated sewage treatment device according to claim 9, characterized in that: The increase in the amount of flocculant added by the dosing pump is positively correlated with the grayscale standard deviation ratio, wherein the grayscale standard deviation ratio is the ratio of the preset grayscale standard deviation to the grayscale standard deviation of the water body.

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