Full-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things

Abstract

The present invention belongs to the technical field of full-process traceability management of heavy metal extraction wastewater treatment, and relates to a full-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things. The present invention analyzes the distribution diagram of the treatment status of each treatment stage in the full process of target heavy metal extraction wastewater treatment, intuitively displays the removal effect of each treatment stage on heavy metal ions and other pollutants, facilitates a quick understanding of the performance of the entire treatment process, and helps to avoid environmental problems caused by substandard wastewater discharge. By obtaining the time points and causes of each problem in each problem treatment stage in the full process of target heavy metal extraction wastewater treatment, the effects and problems of each treatment stage are intuitively obtained, thereby helping to quickly locate the specific stage and time point of the problem, helping to provide a basis for subsequent problem prevention and resolution, avoiding failures in the wastewater treatment system, and ensuring production safety.

Description

Technical Field

[0001] The present invention belongs to the technical field of whole-process traceability management of heavy metal extraction wastewater treatment, and relates to a whole-process traceability management system of heavy metal extraction wastewater treatment based on the Internet of Things. Background Art

[0002] The wastewater generated during the heavy metal extraction process contains a large amount of toxic and hazardous substances. If it is discharged directly without proper treatment, it will cause serious pollution and damage to the environment and ecosystem. With the improvement of environmental awareness and the increasingly stringent environmental regulations, the requirements for the treatment of heavy metal extraction wastewater are also getting higher and higher. Therefore, a full-process traceability control method for heavy metal extraction wastewater treatment is of great significance and role.

[0003] The existing full-process traceability and control methods for heavy metal extraction wastewater treatment can basically meet the needs, but there are still certain shortcomings: on the one hand, the existing full-process traceability and control methods for heavy metal extraction wastewater treatment lack the use of effect distribution diagrams during the treatment process to display the removal effect of heavy metal ions and other pollutants, which makes it impossible to quickly understand the performance of the entire treatment process, which is not conducive to avoiding environmental problems caused by substandard wastewater discharge.

[0004] On the other hand, the existing full-process traceability control method for heavy metal extraction wastewater treatment cannot locate the link and time of the problem at the first time the problem occurs, and thus cannot solve subsequent problems in a timely manner, and cannot avoid production safety caused by failure of the wastewater treatment system, is not conducive to optimizing the treatment process, and cannot ensure that the wastewater treatment effect meets the expectations, and thus cannot reduce the heavy metal content in the wastewater and reduce pollution to the environment. Summary of the invention

[0005] In view of this, in order to solve the problems raised in the above background technology, a full-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things is proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions: The present invention provides a full-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things, including: a full-process monitoring module for wastewater treatment, a full-process analysis module for wastewater treatment, a traceability analysis module, a management terminal and an information library.

[0007] The wastewater treatment full-process analysis module includes a pretreatment stage analysis unit, a primary treatment stage analysis unit, a secondary treatment stage analysis unit and a deep treatment stage analysis unit.

[0008] The wastewater treatment full process monitoring module is used to monitor the entire process of target heavy metal extraction wastewater treatment in real time, and obtain the indicator information of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, where each treatment stage includes the pretreatment stage, primary treatment stage, secondary treatment stage and deep treatment stage.

[0009] The wastewater treatment full process analysis module is used to analyze the treatment status distribution map of each treatment stage in the full process of target heavy metal extraction wastewater treatment.

[0010] The wastewater treatment full-process analysis module includes a pretreatment stage analysis unit, a primary treatment stage analysis unit, a secondary treatment stage analysis unit and a deep treatment stage analysis unit.

[0011] The pretreatment stage analysis unit is used to analyze the treatment status distribution diagram of the pretreatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0012] The primary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the primary treatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0013] The secondary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the secondary treatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0014] The deep processing stage analysis unit is used to analyze the treatment status distribution diagram of the deep processing stage of the entire process of target heavy metal extraction wastewater treatment.

[0015] The traceability analysis module is used to obtain the problem processing stages of the target heavy metal extraction wastewater treatment process based on the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process, and obtain the time points and causes of each problem in each problem processing stage of the target heavy metal extraction wastewater treatment process.

[0016] The management terminal is used to manage the time points and causes of each problem in each problem processing stage of the entire process of target heavy metal extraction wastewater treatment.

[0017] The information database is used to store the indicator information of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, corresponding to each parameter threshold, and the treatment status distribution map of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, and store the qualification indicators of each stage of each treatment stage of the entire process of target heavy metal extraction wastewater treatment corresponding to each time point.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention obtains the indicator information of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, analyzes the treatment status distribution map of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, and intuitively displays the removal effect of each treatment stage on heavy metal ions and other pollutants, which is convenient for quickly understanding the performance of the entire treatment process, helps to avoid environmental problems caused by substandard wastewater discharge, ensures that the treated wastewater will not cause harm to human health and the environment, and is conducive to maintaining the company's environmental image and reputation.

[0019] 2. The present invention obtains the various problem processing stages of the entire process of target heavy metal extraction wastewater treatment, and obtains the time points and causes of each problem in each problem processing stage of the entire process of target heavy metal extraction wastewater treatment, and intuitively obtains the effects and problems of each processing stage, thereby helping to quickly locate the specific stage and time point of the problem, which helps to provide a basis for subsequent problem prevention and resolution, avoids failures in the wastewater treatment system, ensures production safety, and is also conducive to optimizing the treatment process, improving treatment efficiency and effects, ensuring that the wastewater treatment effect reaches the expected, reducing the heavy metal content in the wastewater, and reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of system module connection of the present invention.

[0022] Figure 2 It is a schematic diagram of the system implementation flow of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1As shown, the present invention provides a full-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things, and the specific modules are distributed as follows: full-process monitoring module for wastewater treatment, full-process analysis module for wastewater treatment, traceability analysis module, management terminal and information library.

[0025] The wastewater treatment full-process analysis module includes a pretreatment stage analysis unit, a primary treatment stage analysis unit, a secondary treatment stage analysis unit and a deep treatment stage analysis unit.

[0026] Among them, the connection method between the modules is: the wastewater treatment full-process monitoring module is connected to the wastewater treatment full-process analysis module, the wastewater treatment full-process analysis module is connected to the traceability analysis module, the traceability analysis module is connected to the management terminal, and the information database is connected to the wastewater treatment full-process analysis module and the traceability analysis module respectively.

[0027] The connection between the units is as follows: the pre-processing stage parsing unit is connected to the primary processing stage parsing unit, the primary processing stage parsing unit is connected to the secondary processing stage parsing unit, and the secondary processing stage parsing unit is connected to the deep processing stage parsing unit.

[0028] The wastewater treatment full process monitoring module is used to monitor the entire process of target heavy metal extraction wastewater treatment in real time, and obtain the indicator information of each treatment stage of the entire process of target heavy metal extraction wastewater treatment, where each treatment stage includes the pretreatment stage, primary treatment stage, secondary treatment stage and deep treatment stage.

[0029] It needs to be further explained that the system implementation flow diagram is as follows Figure 2 shown.

[0030] As a preferred feasibility example, the index information of the pretreatment stage includes the water turbidity deviation value before and after grid filtration, the pH deviation value before and after adjustment, and the concentration of various heavy metal ions after adjustment.

[0031] It is necessary to further explain that the reasons for using the water turbidity deviation value before and after grid filtration, the pH deviation value before and after adjustment, and the concentration of various heavy metal ions after adjustment as indicator information in the pretreatment stage are: (1) Turbidity is an important indicator for measuring the clarity of water quality. As a preliminary step in wastewater treatment, grid filtration mainly removes impurities such as suspended matter and particulate matter in wastewater, thereby reducing water turbidity. By measuring the turbidity deviation value before and after grid filtration, the efficiency and effect of grid filtration can be intuitively reflected. (2) pH value is one of the key factors affecting the effect of wastewater treatment. Different heavy metal ions are more likely to react with chemical agents to form precipitation at a specific pH value, thereby being removed. By adjusting the pH value of wastewater, the treatment conditions can be optimized to make the reaction between heavy metal ions and chemical agents more sufficient and efficient. (3) Heavy metal ion concentration is one of the important indicators for measuring the effect of wastewater treatment. By measuring the concentration of various heavy metal ions after adjustment, the removal effect of the wastewater treatment process on heavy metal ions can be intuitively reflected. According to the adjusted concentration of heavy metal ions, the parameters and conditions of the subsequent treatment process can be adjusted to further improve the treatment efficiency.

[0032] It needs to be further explained that the specific method of obtaining the water turbidity deviation value before and after the grid filtration in the pretreatment stage, the pH deviation value before and after adjustment, and the heavy metal ion concentration after adjustment is: using the deployed turbidity meter to detect the grid filtration stage of the pretreatment stage to obtain the water turbidity before and after the grid filtration, and further subtracting them, and the difference obtained is recorded as the water turbidity deviation value before and after the grid filtration in the pretreatment stage.

[0033] The pH meter installed in the pretreatment stage is used to detect the pH value of the regulating tank before and after passing through the regulating tank, and the pH value is further subtracted to obtain the difference, which is recorded as the pH deviation value before and after the adjustment in the pretreatment stage.

[0034] Use clean glassware to collect multiple samples near the outlet of the regulating tank in the pretreatment stage according to the different depths and positions of the outlet, and then mix these samples evenly to obtain the corresponding samples of the regulating tank in the pretreatment stage. After pretreatment, they are introduced into the atomizer of the ICP-AES instrument to obtain the concentrations of various heavy metal ions after adjustment in the pretreatment stage.

[0035] The index information of the primary treatment stage includes the difference in suspended matter concentration before and after precipitation, the difference in concentration of various heavy metal ions before and after precipitation, the removal rate of suspended matter by air flotation, and the difference in concentration of various heavy metal ions before and after air flotation.

[0036] It is necessary to further explain that the reasons for using the difference in suspended solids concentration before and after sedimentation, the difference in concentration of various heavy metal ions before and after sedimentation, the removal rate of suspended solids by air flotation, and the difference in concentration of various heavy metal ions before and after air flotation as indicators of the primary treatment stage are as follows: (1) Sedimentation is a commonly used physical method in wastewater treatment, which separates suspended solids from wastewater by gravity. The difference in suspended solids concentration before and after sedimentation can directly reflect the removal efficiency of the sedimentation process. The stability of the difference in suspended solids concentration before and after sedimentation can reflect the stability and reliability of the sedimentation process. (2) Sedimentation is one of the effective means to remove heavy metal ions from wastewater. By measuring the difference in concentration of various heavy metal ions before and after sedimentation, the removal effect of the sedimentation process on heavy metal ions can be directly measured. (3) Air flotation is a technology that uses the adhesion of tiny bubbles to separate suspended solids from wastewater. The removal rate of suspended solids by air flotation is one of the important indicators for measuring the performance of the air flotation process. The higher the removal rate, the better the removal effect of the air flotation process on suspended solids and the better the water quality of the wastewater. (4) The air flotation process can not only remove suspended solids in wastewater, but also remove heavy metal ions in wastewater to a certain extent. By measuring the concentration difference of various heavy metal ions before and after flotation, the removal effect of the flotation process on heavy metal ions can be measured.

[0037] It should be further explained that the specific method for obtaining the difference in suspended matter concentration before and after precipitation in the primary treatment stage is: using clean glassware to collect samples at multiple points near the water inlet of the precipitation stage of the primary treatment stage according to the different depths and positions of the water outlet, and then mixing these samples evenly to obtain the corresponding sample before the precipitation stage of the primary treatment stage, and then slowly pouring it into the filtration device for filtration. After the filtration is completed, the filter paper or filter membrane with the suspended matter is taken out of the filtration device, placed in an oven to dry to constant weight, and after drying, the filter paper is placed in a dryer to cool to room temperature, and then weighed using an analytical balance to obtain the suspended matter weight of the corresponding sample before the precipitation stage of the primary treatment stage. , further according to the calculation formula Get the suspended matter concentration of the corresponding sample before the sedimentation stage of the primary treatment stage ,in is the weight of filter paper, is the volume of the sample before the sedimentation stage of the primary treatment stage. Similarly, the suspended matter concentration of the sample after the sedimentation stage of the primary treatment stage can be obtained. , further subtract the suspended matter concentration of the corresponding sample before the sedimentation stage of the primary treatment stage from the suspended matter concentration of the corresponding sample after the sedimentation stage to obtain the suspended matter concentration difference before and after the sedimentation of the primary treatment stage.

[0038] The specific method for obtaining the difference in concentration of various heavy metal ions before and after precipitation in the primary treatment stage is: the concentration of various heavy metal ions before and after precipitation in the primary treatment stage can be obtained by using the same method as that of the heavy metal ion concentration after adjustment in the pretreatment stage, and then the concentration of various heavy metal ions before and after precipitation in the primary treatment stage can be obtained by subtracting them to obtain the difference in concentration of various heavy metal ions before and after precipitation in the primary treatment stage.

[0039] The specific method for obtaining the removal rate of suspended solids in the primary treatment stage is as follows: the suspended solids concentration of the corresponding sample before the sedimentation stage of the same treatment stage is obtained, and the concentrations of suspended solids before and after the primary treatment stage can be obtained, which are recorded as , further according to the analytical formula Get the removal rate of suspended solids in the primary treatment stage .

[0040] The specific method for obtaining the concentration difference of various heavy metal ions before and after flotation in the primary treatment stage is as follows: the specific method for obtaining the concentration difference of various heavy metal ions before and after precipitation in the same treatment stage can obtain the concentration difference of various heavy metal ions before and after flotation in the primary treatment stage.

[0041] The index information of the secondary treatment stage includes the pH deviation value before and after chemical treatment, the concentration difference of various heavy metal ions before and after chemical treatment, and the removal rate of various heavy metals in biological treatment.

[0042] It should be further explained that the reasons for using the pH deviation before and after chemical treatment, the concentration difference of various heavy metal ions before and after chemical treatment, and the removal rate of various heavy metals in biological treatment as indicator information for the secondary treatment stage are: (1) In the chemical treatment stage, chemical reagents are usually added to change the chemical properties of the wastewater to achieve the purpose of removing or reducing the concentration of heavy metal ions. By measuring the pH deviation before and after chemical treatment, the effect of chemical treatment can be indirectly evaluated. (2) By measuring the concentration difference of heavy metal ions before and after chemical treatment, the removal effect of chemical treatment on heavy metal ions can be directly measured. (3) The biological treatment stage uses the metabolic activities of microorganisms to remove heavy metal ions in wastewater. By measuring the removal rate of various heavy metals after biological treatment, the performance and effect of the biological treatment process can be evaluated.

[0043] It needs to be further explained that the specific method for obtaining the pH deviation value before and after the chemical treatment in the secondary treatment stage is: the specific method for obtaining the pH deviation value before and after the adjustment in the pretreatment stage can obtain the pH deviation value before and after the chemical treatment in the secondary treatment stage.

[0044] The specific method for obtaining the concentration difference of various heavy metal ions before and after the chemical treatment in the secondary treatment stage is: the specific method for obtaining the concentration difference of various heavy metal ions before and after precipitation in the same treatment stage can obtain the concentration difference of various heavy metal ions before and after the chemical treatment in the secondary treatment stage.

[0045] The specific method for obtaining the removal rate of various heavy metals in the biological treatment of the secondary treatment stage is as follows: the specific method for obtaining the concentration difference of various heavy metal ions before and after precipitation in the same treatment stage can obtain the concentration difference of various heavy metal ions before and after the biological treatment of the secondary treatment stage, which are respectively recorded as ,in , For the numbers of various heavy metals, is the number of heavy metal categories, and further calculated according to the formula Obtain the removal rate of various heavy metals in the biological treatment of the secondary treatment stage .

[0046] The index information of the deep treatment stage includes the concentration difference of various heavy metals before and after adsorption and the membrane separation retention rate.

[0047] It is necessary to further explain that the reason for using the concentration difference of various heavy metals before and after adsorption and the membrane separation retention rate as the indicator information of the deep treatment stage is: (1) The concentration difference of various heavy metals before and after adsorption can intuitively reflect the removal effect of the adsorption process on heavy metal ions. (2) The retention rate is a key indicator of membrane separation effect and can directly reflect the removal ability of membrane separation technology for heavy metal ions.

[0048] It needs to be further explained that the specific method for obtaining the concentration difference of various heavy metals before and after adsorption in the deep treatment stage is: the specific method for obtaining the concentration difference of various heavy metal ions before and after precipitation in the same level treatment stage can obtain the concentration difference of various heavy metals before and after adsorption in the deep treatment stage.

[0049] The specific method for obtaining the membrane separation interception rate in the deep treatment stage is as follows: the specific method for obtaining the concentration difference of various heavy metal ions before and after precipitation in the same level treatment stage can obtain the concentration difference of various heavy metals before and after membrane separation in the deep treatment stage, which are respectively recorded as , according to the analytical formula Get the membrane separation rejection rate in the deep treatment stage .

[0050] The wastewater treatment full process analysis module is used to analyze the treatment status distribution map of each treatment stage in the full process of target heavy metal extraction wastewater treatment.

[0051] The wastewater treatment full-process analysis module includes a pretreatment stage analysis unit, a primary treatment stage analysis unit, a secondary treatment stage analysis unit and a deep treatment stage analysis unit.

[0052] The pretreatment stage analysis unit is used to analyze the treatment status distribution diagram of the pretreatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0053] As a preferred feasibility example, in the process of analyzing the distribution diagram of the treatment status of the pretreatment stage of the target heavy metal extraction wastewater treatment process, it is necessary to construct the qualification index of each stage of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point. The specific analysis method includes: extracting the water turbidity deviation value before and after the grid filtration, the pH deviation value before and after adjustment, and the concentration of various heavy metal ions after adjustment in the pretreatment stage of the target heavy metal extraction wastewater treatment process, respectively recorded as ,in , For the numbers of various heavy metals, is the category number of heavy metals.

[0054] Analyze the grid filtration qualification index of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment ,in It is the threshold value of water turbidity deviation before and after grid filtration in the pretreatment stage of the entire process of target heavy metal extraction wastewater treatment extracted from the information database.

[0055] Analyze the regulation qualification index of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment ,in They are the pH deviation thresholds before and after adjustment and the pH deviation thresholds after adjustment of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment extracted from the information database. Standard concentration of heavy metal ions, It is the allowable difference between the set heavy metal ion concentration and the heavy metal ion standard concentration.

[0056] It should be further explained that the allowable difference between the set heavy metal ion concentration and the standard heavy metal ion concentration may be 0.01 mg / L, which means that a deviation of one percent is allowed between the heavy metal ion concentration and the standard heavy metal ion concentration.

[0057] The grille filtration qualification index and adjustment qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process are stored in the information database, and then the grille filtration qualification index and adjustment qualification index corresponding to each time point of the pretreatment stage of the target heavy metal extraction wastewater treatment process are obtained, which are collectively referred to as the stage qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point.

[0058] It needs to be further explained that the indicator information of each treatment stage of the above-mentioned target heavy metal extraction wastewater treatment process is detected and obtained in real time, and then the grille filtration qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process at the current time point is analyzed and detected in real time, so that the grille filtration qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point in the detection time period can be obtained, and it is recorded as the grille filtration qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point. Similarly, the qualification index of each stage of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point can be obtained.

[0059] As a preferred feasibility example, the treatment status distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process includes the following specific analysis methods: using the time point as the horizontal coordinate and the grid filtration qualification index as the vertical coordinate to establish a two-dimensional coordinate system, and further drawing points and connecting lines therein according to the grid filtration qualification index corresponding to each time point in the pretreatment stage of the target heavy metal extraction wastewater treatment process, so as to obtain the grid filtration qualification index distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process. Similarly, the adjustment qualification index distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process can be obtained, which are collectively referred to as the treatment status distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process.

[0060] The primary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the primary treatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0061] As a preferred feasibility example, the treatment status distribution diagram of the primary treatment stage of the target heavy metal extraction wastewater treatment process is specifically obtained by extracting the suspended solid concentration difference before and after precipitation, the concentration difference of various heavy metal ions before and after precipitation, the air-floating suspended solid removal rate and the concentration difference of various heavy metal ions before and after air-floating in the primary treatment stage of the target heavy metal extraction wastewater treatment process, which are respectively recorded as .

[0062] Based on this, the sedimentation qualification index of the primary treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed. and air flotation qualification index .

[0063] It should be further explained that the specific analysis method of the sedimentation qualification index and the flotation qualification index of the primary treatment stage of the whole process of heavy metal extraction wastewater treatment is as follows: according to the analysis formula Obtain the sedimentation qualification index of the primary treatment stage of the entire process of target heavy metal extraction wastewater treatment ,in They are the suspended solid concentration difference threshold before and after precipitation and the first treatment stage of the target heavy metal extraction wastewater treatment process extracted from the information database. Heavy metal ion concentration difference threshold. According to the analysis formula Obtain the flotation qualification index of the primary treatment stage of the entire process of target heavy metal extraction wastewater treatment ,in They are the removal rate threshold of suspended solids before and after flotation in the primary treatment stage of the whole process of target heavy metal extraction wastewater treatment extracted from the information database. Heavy metal ion concentration difference threshold.

[0064] Further, according to the method of obtaining the treatment status distribution map of the pretreatment stage of the whole process of target heavy metal extraction wastewater treatment, the treatment status distribution map of the primary treatment stage of the whole process of target heavy metal extraction wastewater treatment can be obtained similarly.

[0065] The secondary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the secondary treatment stage of the entire process of target heavy metal extraction wastewater treatment.

[0066] As a preferred feasibility example, the treatment status distribution diagram of the secondary treatment stage of the target heavy metal extraction wastewater treatment process is specifically analyzed by extracting the pH deviation value before and after chemical treatment, the concentration difference of various heavy metal ions before and after chemical treatment, and the removal rate of various heavy metals in biological treatment in the secondary treatment stage of the target heavy metal extraction wastewater treatment process, which are recorded as .

[0067] Based on this, the chemical qualification index of the secondary treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed and biological compliance indicators .

[0068] It should be further explained that the specific analysis method of the chemical qualification index and biological qualification index of the secondary treatment stage of the target heavy metal extraction wastewater treatment process is: according to the analysis formula Obtain the chemical qualification index of the secondary treatment stage of the entire process of target heavy metal extraction wastewater treatment ,in They are the pH deviation thresholds before and after chemical treatment and the pH deviation thresholds before and after chemical treatment of the secondary treatment stage of the target heavy metal extraction wastewater treatment process extracted from the information database. Heavy metal ion concentration difference threshold. According to the analysis formula Obtain the biological qualification index of the secondary treatment stage of the entire process of target heavy metal extraction wastewater treatment ,in The target heavy metal extraction wastewater treatment process extracted from the information database belongs to the biological treatment stage of the secondary treatment stage Heavy metal removal rate threshold, is the minimum value of the ratio of the set heavy metal removal rate to the heavy metal removal rate threshold, and .

[0069] Further, according to the method of obtaining the treatment status distribution map of the pretreatment stage of the whole process of target heavy metal extraction wastewater treatment, the treatment status distribution map of the secondary treatment stage of the whole process of target heavy metal extraction wastewater treatment can be obtained by the same token.

[0070] The deep processing stage analysis unit is used to analyze the treatment status distribution diagram of the deep processing stage of the entire process of target heavy metal extraction wastewater treatment.

[0071] As a preferred feasibility example, the treatment status distribution diagram of the deep treatment stage of the target heavy metal extraction wastewater treatment process is specifically analyzed by extracting the concentration difference of various heavy metals before and after adsorption and the membrane separation retention rate of the deep treatment stage of the target heavy metal extraction wastewater treatment process, which are recorded as .

[0072] Based on this, the adsorption qualification index of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed Membrane separation qualification index .

[0073] It should be further explained that the specific analysis method of the adsorption qualification index and membrane separation qualification index of the deep treatment stage of the whole process of the target heavy metal extraction wastewater treatment is: according to the analysis formula Obtain the adsorption qualification index of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment ,in The target heavy metal extraction wastewater treatment process is extracted from the information database and belongs to the deep treatment stage before and after adsorption. Heavy metal concentration difference threshold. According to the analysis formula Obtain the membrane separation qualification index of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment ,in is a natural constant.

[0074] Further, according to the method of obtaining the treatment status distribution map of the pretreatment stage of the whole process of target heavy metal extraction wastewater treatment, the treatment status distribution map of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment can be obtained similarly.

[0075] The present invention analyzes the treatment status distribution diagram of each treatment stage in the entire process of target heavy metal extraction wastewater treatment, intuitively displays the removal effect of each treatment stage on heavy metal ions and other pollutants, facilitates a quick understanding of the performance of the entire treatment process, helps to avoid environmental problems caused by substandard wastewater discharge, ensures that the treated wastewater will not cause harm to human health and the environment, and is conducive to maintaining the company's environmental image and reputation.

[0076] The traceability analysis module is used to obtain the problem processing stages of the target heavy metal extraction wastewater treatment process based on the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process, and obtain the time points and causes of each problem in each problem processing stage of the target heavy metal extraction wastewater treatment process.

[0077] As a preferred feasibility example, the specific acquisition method of the various problem processing stages belonging to the target heavy metal extraction wastewater treatment process includes: extracting the treatment status distribution map of each treatment stage belonging to the target heavy metal extraction wastewater treatment process; if there is a stage qualification index distribution map in the treatment status distribution map of a certain treatment stage of the target heavy metal extraction wastewater treatment process, which is outside the preset range of the qualification index distribution map of the stage, then the treatment stage of the target heavy metal extraction wastewater treatment process is recorded as the problem processing stage of the target heavy metal extraction wastewater treatment process, and then the various problem processing stages of the target heavy metal extraction wastewater treatment process are obtained.

[0078] A specific example, if there is a stage qualification index distribution map in the treatment situation distribution map of a certain treatment stage of the target heavy metal extraction wastewater treatment process that is outside the preset range of the stage qualification index distribution map, it means that the grid filtration qualification index distribution map in the treatment situation distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process is outside the preset range of the grid filtration qualification index distribution map. Then the preset range of the grid filtration qualification distribution map is the frame range of two different straight lines parallel to the horizontal axis in the grid filtration qualification index distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process, and the above two straight lines parallel to the horizontal axis are respectively recorded as the high straight line and the low straight line. If there is a line higher than the high straight line or lower than the ground straight line in the grid filtration qualification index distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process, it is recorded as the grid filtration qualification index distribution map in the treatment situation distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process is outside the preset range of the grid filtration qualification distribution map.

[0079] As a preferred feasibility example, the problem time points and problem causes of each problem processing stage of the target heavy metal extraction wastewater treatment whole process, and its specific acquisition method include: extracting the distribution map of the qualification index of each stage from the distribution map of the treatment status of each problem stage of the target heavy metal extraction wastewater treatment whole process, and determining the distribution map of the qualification index of each stage of each problem stage of the target heavy metal extraction wastewater treatment whole process that is outside the preset range of the corresponding stage qualification distribution map, and then obtaining the problem causes of each problem stage of the target heavy metal extraction wastewater treatment whole process.

[0080] A specific example, if the problem stage of the target heavy metal extraction wastewater treatment process is the pretreatment stage, then the grid filtration qualification index distribution diagram and the adjustment qualification index distribution diagram of the pretreatment stage of the target heavy metal extraction wastewater treatment process are extracted, and if there is a curve outside the preset range of the grid filtration qualification index distribution diagram in the grid filtration qualification index distribution diagram of the pretreatment stage of the target heavy metal extraction wastewater treatment process, then the problem cause of the problem stage of the target heavy metal extraction wastewater treatment process being the pretreatment stage is recorded as a grid filtration failure.

[0081] If there is a curve outside the preset range of the regulation qualification index distribution diagram in the pretreatment stage of the target heavy metal extraction wastewater treatment process, then the problem cause of a problem in the pretreatment stage of the target heavy metal extraction wastewater treatment process is recorded as a regulating tank failure.

[0082] The time points of the distribution diagram of the qualification index of each stage of the target heavy metal extraction wastewater treatment process that are outside the corresponding preset range are recorded as the problem time points of each problem stage of the target heavy metal extraction wastewater treatment process.

[0083] The management terminal is used to manage the time points and causes of each problem in each problem processing stage of the entire process of target heavy metal extraction wastewater treatment.

[0084] As a preferred feasibility example, the management terminal specifically includes: managing the problem time points and problem causes of each problem stage in the entire process of target heavy metal extraction wastewater treatment according to predefined management principles.

[0085] It is necessary to further explain that the specific contents of the predefined management principles are as follows: (1) Analysis of specific causes of problems: For the pretreatment stage: abnormal water inlet, check whether there is abnormal discharge from the upstream production line or whether the wastewater from different production lines produces chemical reactions after mixing, affecting the water quality of the wastewater; equipment failure, damage to the mechanical parts of the screen resulting in poor filtration effect or failure of the stirring equipment in the equalization tank will cause uneven mixing of the water quality, affecting subsequent treatment; operational errors, the operator does not follow the standard process, such as the wrong opening and closing of the valve in the equalization tank.

[0086] For the primary treatment stage: reagent issues, during the sedimentation process, the type, dosage, order of addition or quality of flocculants may affect the sedimentation effect. Improper equipment parameters, insufficient hydraulic retention time of the sedimentation equipment, too fast water flow rate will affect the sedimentation effect, or inappropriate parameters such as pressure and air flow of the flotation equipment will cause abnormal bubbles; water quality changes, new pollutants appear in the influent water or water quality fluctuations are too large, which may affect the treatment effects of sedimentation and flotation.

[0087] For the secondary treatment stage: chemical treatment, quality problems of chemical agents, failure of dosing equipment or inappropriate reaction conditions; biological treatment, microorganisms are impacted by toxic and harmful substances, the influent water quality deteriorates resulting in excessive concentrations of nutrients and heavy metals, or aeration equipment failure leads to insufficient DO.

[0088] For the deep treatment stage: in the adsorption process, adsorbent saturation, adsorbent quality problems or fluctuations in influent water quality lead to an increase in adsorption interfering substances; in the membrane separation process, membrane pollution, membrane damage, operating pressure and temperature changes or influent water quality does not meet the requirements.

[0089] (2) Specific management operations: For the pretreatment stage: clean the grille; open the emergency regulating tank to temporarily store the wastewater and perform preliminary treatment.

[0090] For the primary treatment stage: in case of poor sedimentation effect, the amount of flocculant added can be appropriately increased or the sedimentation time can be extended; when flotation is abnormal, adjust equipment parameters such as pressure, air flow, etc.

[0091] For the secondary treatment stage: chemical treatment, adjust the pH value and the amount of reagents added, and repair the dosing equipment; biological treatment, if the microorganisms are impacted, stop water intake or carry out microbial acclimatization, supplement nutrients, and repair the aeration equipment.

[0092] For the deep treatment stage: for the adsorption process, replace or regenerate the adsorbent; when problems occur in membrane separation, clean or replace the membrane components and adjust the operating pressure and temperature.

[0093] The information database is used to store the indicator information of each treatment stage of the target heavy metal extraction wastewater treatment process corresponding to each parameter threshold and the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process, and store the qualification indicators of each stage of each treatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point.

[0094] The present invention obtains the time points and causes of each problem in each problem processing stage of the entire process of target heavy metal extraction wastewater treatment, and intuitively obtains the effect and problem of each processing stage, thereby helping to quickly locate the specific stage and time point of the problem, helping to provide a basis for subsequent problem prevention and resolution, avoiding malfunctions of the wastewater treatment system, ensuring production safety, and also facilitating the optimization of the treatment process, improving treatment efficiency and effect, ensuring that the wastewater treatment effect reaches the expected, reducing the heavy metal content in the wastewater, and reducing pollution to the environment.

[0095] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, they shall all fall within the protection scope of the present invention.

Claims

1. The whole process traceability management system of heavy metal extraction wastewater treatment based on the Internet of Things is characterized by: include: The whole process monitoring module of wastewater treatment is used to monitor the whole process of target heavy metal extraction wastewater treatment in real time, and obtain the index information of each treatment stage of the whole process of target heavy metal extraction wastewater treatment, wherein each treatment stage includes pretreatment stage, primary treatment stage, secondary treatment stage and deep treatment stage; The wastewater treatment process analysis module is used to analyze the distribution diagram of the treatment status of each treatment stage in the whole process of target heavy metal extraction wastewater treatment; The wastewater treatment full-process analysis module includes a pre-treatment stage analysis unit, a primary treatment stage analysis unit, a secondary treatment stage analysis unit and a deep treatment stage analysis unit; The pretreatment stage analysis unit is used to analyze the treatment status distribution diagram of the pretreatment stage of the whole process of the target heavy metal extraction wastewater treatment; The primary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the primary treatment stage of the entire process of target heavy metal extraction wastewater treatment; The secondary treatment stage analysis unit is used to analyze the treatment status distribution diagram of the secondary treatment stage of the target heavy metal extraction wastewater treatment process; The deep processing stage analysis unit is used to analyze the distribution diagram of the processing status of the deep processing stage of the whole process of the target heavy metal extraction wastewater treatment; The traceability analysis module is used to obtain the problem processing stages of the target heavy metal extraction wastewater treatment process based on the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process, and obtain the time point and cause of each problem in each problem processing stage of the target heavy metal extraction wastewater treatment process; The management terminal is used to manage the time points and causes of each problem in each problem processing stage of the entire process of target heavy metal extraction wastewater treatment; An information database is used to store the indicator information of each treatment stage of the target heavy metal extraction wastewater treatment process, corresponding to each parameter threshold, and the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process, and store the qualification indicators of each stage of each treatment stage of the target heavy metal extraction wastewater treatment process at each time point; The index information of the pretreatment stage includes the water turbidity deviation value before and after grid filtration, the pH deviation value before and after adjustment, and the concentration of various heavy metal ions after adjustment; The index information of the primary treatment stage includes the difference in suspended solids concentration before and after precipitation, the difference in concentration of various heavy metal ions before and after precipitation, the removal rate of suspended solids by air flotation, and the difference in concentration of various heavy metal ions before and after air flotation; The index information of the secondary treatment stage includes the pH deviation value before and after chemical treatment, the concentration difference of various heavy metal ions before and after chemical treatment, and the removal rate of various heavy metals in biological treatment; The index information of the deep treatment stage includes the concentration difference of various heavy metals before and after adsorption and the membrane separation retention rate; In the process of analyzing the distribution diagram of the treatment status of the pretreatment stage of the target heavy metal extraction wastewater treatment process, it is necessary to construct the qualification index of each stage of the pretreatment stage of the target heavy metal extraction wastewater treatment process corresponding to each time point. The specific analysis methods include: The turbidity deviation value of water quality before and after grid filtration, the pH deviation value before and after adjustment, and the concentration of various heavy metal ions after adjustment in the pretreatment stage of the whole process of heavy metal extraction wastewater treatment are recorded as ,in , For the numbers of various heavy metals, is the category number of heavy metals; Analyze the grid filtration qualification index of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment ,in It is the water quality turbidity deviation value threshold before and after the grid filtration in the pretreatment stage of the whole process of the target heavy metal extraction wastewater treatment extracted from the information database; Analyze the regulation qualification index of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment ,in They are the pH deviation thresholds before and after adjustment and the pH deviation thresholds after adjustment of the pretreatment stage of the whole process of heavy metal extraction wastewater treatment extracted from the information database. Standard concentration of heavy metal ions, It is the permissible difference between the set heavy metal ion concentration and the standard heavy metal ion concentration; The grid filtration qualification index and the adjustment qualification index of the pretreatment stage of the target heavy metal extraction wastewater treatment process are stored in the information database, and then the grid filtration qualification index and the adjustment qualification index corresponding to each time point of the pretreatment stage of the target heavy metal extraction wastewater treatment process are obtained, which are collectively referred to as the qualification index of each stage corresponding to each time point of the pretreatment stage of the target heavy metal extraction wastewater treatment process; The distribution diagram of the treatment status of the pretreatment stage of the entire process of the target heavy metal extraction wastewater treatment, and its specific analysis method includes: A two-dimensional coordinate system is established with the time point as the horizontal coordinate and the grid filtration qualification index as the vertical coordinate, in which points are drawn and connected according to the grid filtration qualification index corresponding to each time point in the pretreatment stage of the target heavy metal extraction wastewater treatment process, and a distribution map of the grid filtration qualification index in the pretreatment stage of the target heavy metal extraction wastewater treatment process is obtained. Similarly, a distribution map of the adjustment qualification index in the pretreatment stage of the target heavy metal extraction wastewater treatment process can be obtained, which are collectively referred to as a distribution map of the treatment status of the pretreatment stage of the target heavy metal extraction wastewater treatment process; The distribution map of the treatment status of the primary treatment stage of the entire process of the target heavy metal extraction wastewater treatment, and the specific acquisition method thereof includes: The concentration difference of suspended matter before and after precipitation, the concentration difference of various heavy metal ions before and after precipitation, the removal rate of suspended matter by air flotation, and the concentration difference of various heavy metal ions before and after air flotation in the primary treatment stage of the whole process of wastewater treatment of target heavy metal extraction are recorded as ; Based on this, the sedimentation qualification index of the primary treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed. and air flotation qualification index ; According to the method of obtaining the treatment status distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process, the treatment status distribution map of the primary treatment stage of the target heavy metal extraction wastewater treatment process can be obtained in the same way; The distribution diagram of the treatment status of the secondary treatment stage of the entire process of the target heavy metal extraction wastewater treatment, and its specific analysis methods include: The pH deviation value before and after chemical treatment, the concentration difference of various heavy metal ions before and after chemical treatment, and the removal rate of various heavy metals in biological treatment in the secondary treatment stage of the whole process of wastewater treatment of target heavy metal extraction are recorded as ; Based on this, the chemical qualification index of the secondary treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed and biological compliance indicators ; According to the method of obtaining the treatment status distribution map of the pretreatment stage of the target heavy metal extraction wastewater treatment process, the treatment status distribution map of the secondary treatment stage of the target heavy metal extraction wastewater treatment process can be obtained in the same way; The distribution diagram of the treatment status of the deep treatment stage of the entire process of the target heavy metal extraction wastewater treatment, and its specific analysis methods include: The concentration difference of various heavy metals before and after adsorption and the membrane separation retention rate in the deep treatment stage of the whole process of heavy metal extraction wastewater treatment are recorded as ; Based on this, the adsorption qualification index of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment is analyzed Membrane separation qualification index ; According to the method of obtaining the treatment status distribution map of the pretreatment stage of the whole process of target heavy metal extraction wastewater treatment, the treatment status distribution map of the deep treatment stage of the whole process of target heavy metal extraction wastewater treatment can be obtained similarly.

2. According to claim 1, the whole process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things is characterized by: The specific acquisition methods of the various problem processing stages of the entire process of target heavy metal extraction wastewater treatment include: Extract the treatment status distribution map of each treatment stage of the target heavy metal extraction wastewater treatment process; if there is a stage qualification index distribution map in the treatment status distribution map of a certain treatment stage of the target heavy metal extraction wastewater treatment process, which is outside the preset range of the qualification index distribution map of that stage, then the treatment stage of the target heavy metal extraction wastewater treatment process is recorded as the problem treatment stage of the target heavy metal extraction wastewater treatment process, and then obtain the problem treatment stages of the target heavy metal extraction wastewater treatment process.

3. The whole process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things according to claim 2 is characterized in that: The specific method of obtaining the time points and causes of each problem in each problem processing stage of the entire process of the target heavy metal extraction wastewater treatment includes: Extract the distribution map of the qualified index of each stage from the distribution map of the treatment status of each problem stage in the whole process of the target heavy metal extraction wastewater treatment, and determine the distribution map of the qualified index of each stage of each problem stage in the whole process of the target heavy metal extraction wastewater treatment that is outside the preset range of the qualified index distribution map of the corresponding stage, and then obtain the cause of the problem in each problem stage in the whole process of the target heavy metal extraction wastewater treatment; The time points of the distribution diagram of the qualification index of each stage of the target heavy metal extraction wastewater treatment process that are outside the corresponding preset range are recorded as the problem time points of each problem stage of the target heavy metal extraction wastewater treatment process.

4. The whole-process traceability management system for heavy metal extraction wastewater treatment based on the Internet of Things according to claim 3 is characterized in that: The management terminal specifically includes: managing each problem time point and problem cause of each problem stage in the entire process of target heavy metal extraction wastewater treatment according to predefined management principles.

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