Efficient treatment process for electroplating wastewater

Abstract

The application relates to the technical field of wastewater treatment, and discloses an efficient electroplating wastewater treatment process, which comprises the following steps: setting single or multiple bubble guide pipes by acquiring the volume of a reaction pool, setting the bubble guide pipes according to the wastewater liquid surface profile, selecting the longest line segment as a path to set the bubble guide pipes, dividing each bubble guide pipe into single or multiple test areas, adopting different adjustment strategies for the corresponding number of bubble guide pipes by observing the bubble density of the test areas in real time, so that the bubble density in the reaction pool can reach the qualified standard, and the wastewater treatment efficiency can be improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a high-efficiency treatment process for electroplating wastewater. Background Technology

[0002] Electroplating wastewater refers to the wastewater generated during the electroplating production process, mainly including pretreatment wastewater, plating rinsing wastewater, post-treatment wastewater, and waste plating solution. This wastewater originates from various stages of the electroplating process, including wastewater generated during rust and oil removal, electroplating, brightening, and post-passivation rinsing. Electroplating wastewater is complex in quality, containing various heavy metal ions such as chromium, copper, nickel, zinc, lead, cadmium, and mercury. These pollutants themselves or their compounds can be toxic to organisms under certain conditions, and some may even pose a carcinogenic risk. Therefore, appropriate treatment methods must be adopted.

[0003] In physical methods, air flotation can be used to treat wastewater. However, on the one hand, the air flotation produces unevenly distributed bubbles with significant differences in bubble density in different areas, and the bubble guide tubes cannot be adjusted, which increases the time required for the reaction tank to reach the qualified bubble density. This greatly reduces the efficiency of air flotation in treating wastewater. On the other hand, existing processes neglect to set the number of bubble guide tubes according to the size of the reaction tank.

[0004] In conclusion, there is an urgent need for an electroplating wastewater treatment process to solve the above problems. Summary of the Invention

[0005] This invention provides a highly efficient process for treating electroplating wastewater, which helps to solve the problems mentioned in the background art.

[0006] This invention provides the following technical solution: a high-efficiency treatment process for electroplating wastewater.

[0007] Optionally, a high-efficiency treatment process for electroplating wastewater includes:

[0008] Collect relevant data on electroplating wastewater at different volumes and train the model.

[0009] The relevant data includes the required bubble density for different volumes of electroplating wastewater, the time required to reach the required bubble density in the reaction tank, and the number of times bubbles need to be removed.

[0010] The volume of electroplating wastewater is obtained, and a standard threshold for bubble density is set according to the model. The standard threshold for bubble density is a constant.

[0011] The number of bubble conduits is determined based on the volume of the reaction tank, and the corresponding bubble density qualification standard is adopted.

[0012] If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring areas is controlled by adjusting the angle of the bubble guide tubes.

[0013] The monitoring area includes a central monitoring area and an edge monitoring area, and the edge monitoring area includes sub-edge monitoring areas;

[0014] If there are multiple bubble conduits in the reaction tank, then divide the central monitoring areas of multiple adjacent bubble conduits, and adjust the distance between adjacent bubble conduits according to the bubble density of different central monitoring areas. Multiple means two or more.

[0015] When the bubble density is within acceptable limits, perform bubble removal.

[0016] Optionally, the corresponding bubble density qualification standard is adopted based on the number of bubble conduits in the reaction tank:

[0017] Set a volume threshold;

[0018] If the volume of the reaction tank is less than the volume threshold, then the number of bubble conduits in the reaction tank is one.

[0019] If the volume of the reaction tank is greater than or equal to the volume threshold, then the number of bubble conduits in the reaction tank is multiple, where multiple means two or more.

[0020] Optionally, if the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring zones, and the bubble density in the monitoring zones is controlled by adjusting the angle of the bubble guide tubes.

[0021] Electroplating wastewater is injected into the reaction tank;

[0022] Obtain the outline of the liquid surface edge;

[0023] Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as c1, c2, c3...c d d is the total number of observation points;

[0024] Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set;

[0025] Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface;

[0026] A bubble guide tube is vertically installed at the center point of the longest line segment of the liquid surface;

[0027] Using the center point of the longest line segment on the liquid surface as the center point, a circular area with radius r is selected as the central monitoring area, where radius r is less than or equal to the minimum distance within the set;

[0028] Set a standard threshold for bubble density;

[0029] Real-time acquisition of bubble concentration within the central monitoring area;

[0030] If the bubble concentration in the central monitoring area is greater than or equal to the bubble density standard threshold, then the area outside the central monitoring area is marked as the edge monitoring area.

[0031] Two perpendicular lines are drawn through the center point of the longest line segment on the liquid surface. The angle formed by the two lines is recorded as the initial angle. The edge monitoring area is divided into four sub-edge monitoring areas. The two lines and the edge of the liquid surface are on the same plane. The bubble density in each sub-edge monitoring area is obtained and the bubble density is entered into the monitoring set in ascending order.

[0032] Adjust the bubble guide angle according to the bubble density in different sub-edge monitoring areas.

[0033] Optionally, the bubble conduit angle is adjusted sequentially according to the bubble density in different sub-edge monitoring areas;

[0034] The sub-monitoring area corresponding to the smallest internal bubble density in the monitoring set is selected as the minimum density monitoring area for the first angle adjustment;

[0035] Draw the angle bisectors of the two initial included angles, keep the position of the bubble guide tube at the center of the liquid surface unchanged, adjust the angle between the bubble guide tube and the vertical direction, select the angle bisector passing through the minimum density monitoring area as the adjustment path, and adjust the angle between the bubble guide tube and the vertical direction to 15 degrees along the adjustment path.

[0036] Real-time monitoring of bubble density in the minimum density monitoring zone.

[0037] Optionally, if the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring zones, and the bubble density in the monitoring zones is controlled by adjusting the angle of the bubble guide tubes.

[0038] If the bubble density in the minimum density monitoring area is greater than or equal to the standard threshold for bubble density, a second angle adjustment is performed.

[0039] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0040] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then a third angle adjustment is performed;

[0041] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0042] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then a fourth angle adjustment will be performed.

[0043] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0044] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then the bubble density in the current reaction tank is qualified.

[0045] Optionally, if there are multiple bubble conduits in the reaction tank, then the central monitoring zones of multiple adjacent bubble conduits are divided, and the distance between adjacent bubble conduits is adjusted according to the bubble density of different central monitoring zones.

[0046] Obtain the outline of the liquid surface edge;

[0047] Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as c1, c2, c3...c d d is the total number of observation points;

[0048] Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set;

[0049] Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface;

[0050] Select n nodes from left to right on the longest line segment of the liquid surface to form n+1 sub-segments, and each sub-segment has the same length;

[0051] A bubble guide tube is vertically installed at each node;

[0052] Using each node as the center, circular regions with radii of r, 2r, and 3r are selected sequentially as the central monitoring area, where the radius 3r is less than or equal to the minimum distance within the set.

[0053] On the longest line segment of the liquid surface, obtain the center monitoring area of ​​two adjacent nodes from left to right, and denot them as the left node and the right node;

[0054] Sequentially determine the bubble density of the center monitoring area with left node radii of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area;

[0055] Sequentially determine the bubble density of the center monitoring area with right node radius of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area;

[0056] Move the bubble conduit corresponding to the right node to the left until the qualified center monitoring area of ​​the left node is tangent to the qualified monitoring area of ​​the right node;

[0057] Real-time monitoring of bubble concentration between adjacent nodes; if the bubble concentration between adjacent nodes is greater than or equal to twice the standard threshold for bubble density, then the bubble density of the current reaction tank is qualified.

[0058] Optionally, when the bubble density is qualified, a bubble removal operation is performed, specifically as follows:

[0059] When the bubble density in the reaction tank is within acceptable limits, remove all bubbles from the liquid surface.

[0060] When the bubble density in the reaction tank is zero, bubbles are injected into the reaction tank, and the bubble density in the reaction tank is monitored in real time.

[0061] The model is used to obtain the removal data of all electroplating wastewater with the same reaction tank type and volume. The removal data is the number of removals.

[0062] The average number of cleanups mentioned above is calculated and set as the current number of cleanups.

[0063] The present invention has the following beneficial effects:

[0064] 1. This efficient electroplating wastewater treatment process can more accurately control bubble density by collecting relevant data on different volumes of electroplating wastewater and training a model, thereby improving the efficiency of wastewater treatment.

[0065] 2. This is a high-efficiency treatment process for electroplating wastewater. This process is applicable to reaction tanks of different volumes and types, has strong adaptability, and can meet the treatment needs of electroplating wastewater under different scales and conditions.

[0066] 3. This efficient electroplating wastewater treatment process involves acquiring the liquid surface profile, selecting test points, determining the maximum length of the liquid surface, and setting up bubble conduits along this maximum length. If the reaction tank volume is less than a volume threshold, a single bubble conduit is used. A central monitoring area is selected, and its bubble density is detected. If the bubble density in the central monitoring area meets the standard bubble density threshold, sub-edge monitoring areas are defined, and the angle of the bubble conduits is adjusted to below each sub-edge monitoring area to accelerate the increase of bubble density. If the reaction tank volume is greater than or equal to the volume threshold, multiple bubble conduits are used, and each bubble conduit is divided into multiple different halves. A central monitoring area with the same center is used to determine the bubble density of the central monitoring area under different radii of each bubble conduit. The central monitoring area with qualified bubble density is marked. The positions of two adjacent bubble conduits are adjusted so that the bubble density in the area between adjacent conduits is greater than or equal to the standard threshold of bubble density. According to the volume of the reaction tank and the number of bubble conduits, the corresponding qualified bubble density judgment standard is adopted. This can reasonably allocate resources, avoid resource waste caused by too many or too few bubble conduits, and reduce the bubble density difference between different areas, thereby improving the bubble generation efficiency of the reaction tank and significantly shortening the time for qualified bubble density in the reaction tank.

[0067] 4. This efficient electroplating wastewater treatment process, by setting a standard threshold for bubble density and monitoring bubble density in real time, can ensure that the bubble density in the electroplating wastewater reaches the optimal state, which is conducive to the full contact between pollutants in the wastewater and bubbles and their separation from the water.

[0068] 5. This high-efficiency treatment process for electroplating wastewater allows for more precise control of bubble density in different areas by dividing a single bubble conduit into multiple monitoring zones and adjusting the conduit angle, thereby improving the treatment effect.

[0069] 6. This high-efficiency electroplating wastewater treatment process can reduce unnecessary energy consumption and lower operating costs while ensuring treatment effectiveness by real-time monitoring and adjustment of the bubble guide angle.

[0070] 7. This high-efficiency electroplating wastewater treatment process, by real-time monitoring of bubble density and calculation of the number of removal operations based on the model, can more rationally arrange bubble removal operations, ensuring the continuity and stability of the wastewater treatment process. Attached Figure Description

[0071] Figure 1 This is a schematic diagram of the structure of the present invention;

[0072] Figure 2 This is a schematic diagram of a single bubble conduit of the present invention;

[0073] Figure 3 This is a schematic diagram of multiple bubble conduits of the present invention. Detailed Implementation

[0074] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0075] Example 1, see Figures 1 to 3 A high-efficiency treatment process for electroplating wastewater includes:

[0076] Collect relevant data on electroplating wastewater at different volumes and train the model.

[0077] The relevant data includes the required bubble density for different volumes of electroplating wastewater, the time required to reach the required bubble density in the reaction tank, and the number of times bubbles need to be removed.

[0078] The volume of electroplating wastewater is obtained, and a standard threshold for bubble density is set according to the model. The standard threshold for bubble density is a constant.

[0079] The bubble density standard threshold is used to define the required bubble density for treating electroplating wastewater.

[0080] The number of bubble conduits is determined based on the volume of the reaction tank, and the corresponding bubble density qualification standard is adopted.

[0081] If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring areas is controlled by adjusting the angle of the bubble guide tubes.

[0082] The monitoring area includes a central monitoring area and an edge monitoring area, and the edge monitoring area includes sub-edge monitoring areas;

[0083] If there are multiple bubble conduits in the reaction tank, then divide the central monitoring areas of multiple adjacent bubble conduits, and adjust the distance between adjacent bubble conduits according to the bubble density of different central monitoring areas. Multiple means two or more.

[0084] When the bubble density is within acceptable limits, perform bubble removal.

[0085] By collecting relevant data on different volumes of electroplating wastewater and training models, bubble density can be controlled more precisely, thereby improving the efficiency of wastewater treatment.

[0086] The corresponding bubble density qualification standard is adopted based on the number of bubble conduits in the reaction tank:

[0087] Set a volume threshold;

[0088] The volume threshold is a constant and is used to define the size of the reaction tank, thereby selecting different numbers of bubble conduits.

[0089] If the volume of the reaction tank is less than the volume threshold, then the number of bubble conduits in the reaction tank is one.

[0090] If the volume of the reaction tank is greater than or equal to the volume threshold, then the number of bubble conduits in the reaction tank is multiple, where multiple means two or more.

[0091] This process is applicable to reaction tanks of different volumes and types, and has strong adaptability, which can meet the needs of electroplating wastewater treatment under different scales and conditions.

[0092] See Figure 2 If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring zones. The bubble density in the monitoring zones is controlled by adjusting the angle of the bubble guide tubes.

[0093] Electroplating wastewater is injected into the reaction tank;

[0094] Obtain the outline of the liquid surface edge;

[0095] Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as c1, c2, c3...c d d is the total number of observation points;

[0096] Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set;

[0097] Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface;

[0098] A bubble guide tube is vertically installed at the center point of the longest line segment of the liquid surface;

[0099] Using the center point of the longest line segment on the liquid surface as the center point, a circular area with radius r is selected as the central monitoring area, where radius r is less than or equal to the minimum distance within the set;

[0100] Set a standard threshold for bubble density;

[0101] The standard threshold for bubble density is a constant and can be set according to different volumes of reaction tanks. It is used to determine whether the reaction tank has reached the required bubble density.

[0102] By setting a standard threshold for bubble density and monitoring bubble density in real time, it is possible to ensure that the bubble density in electroplating wastewater reaches the optimal state, which is conducive to the full contact between pollutants in the wastewater and bubbles and their separation from the water.

[0103] Real-time acquisition of bubble concentration within the central monitoring area;

[0104] If the bubble concentration in the central monitoring area is greater than or equal to the bubble density standard threshold, then the area outside the central monitoring area is marked as the edge monitoring area.

[0105] Two perpendicular lines are drawn through the center point of the longest line segment on the liquid surface. The angle formed by the two lines is recorded as the initial angle. The edge monitoring area is divided into four sub-edge monitoring areas. The two lines and the edge of the liquid surface are on the same plane. The bubble density in each sub-edge monitoring area is obtained and the bubble density is entered into the monitoring set in ascending order.

[0106] Adjust the bubble guide angle according to the bubble density in different sub-edge monitoring areas.

[0107] The bubble guide angle is adjusted sequentially according to the bubble density in different sub-edge monitoring areas;

[0108] The sub-monitoring area corresponding to the smallest internal bubble density in the monitoring set is selected as the minimum density monitoring area for the first angle adjustment;

[0109] Draw the angle bisectors of the two initial included angles, keep the position of the bubble guide tube at the center of the liquid surface unchanged, adjust the angle between the bubble guide tube and the vertical direction, select the angle bisector passing through the minimum density monitoring area as the adjustment path, and adjust the angle between the bubble guide tube and the vertical direction to 15 degrees along the adjustment path.

[0110] Real-time monitoring of bubble density in the minimum density monitoring zone.

[0111] If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring zones. The bubble density in the monitoring zones is controlled by adjusting the angle of the bubble guide tubes.

[0112] If the bubble density in the minimum density monitoring area is greater than or equal to the standard threshold for bubble density, a second angle adjustment is performed.

[0113] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0114] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then a third angle adjustment is performed;

[0115] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0116] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then a fourth angle adjustment will be performed.

[0117] Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time.

[0118] If the bubble density in the aforementioned sub-edge monitoring area is greater than or equal to the bubble density threshold, then the current bubble density in the reaction tank is qualified.

[0119] For a single bubble conduit, by dividing it into multiple monitoring zones and adjusting the conduit angle, the bubble density in different zones can be controlled more precisely, thereby improving the treatment effect.

[0120] By monitoring and adjusting the bubble conduit angle in real time, unnecessary energy consumption can be reduced and operating costs can be lowered while ensuring treatment effectiveness.

[0121] See Figure 3 If there are multiple bubble conduits in the reaction tank, then the central monitoring zones of multiple adjacent bubble conduits are divided, and the distance between adjacent bubble conduits is adjusted according to the bubble density of different central monitoring zones.

[0122] Obtain the outline of the liquid surface edge;

[0123] Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as c1, c2, c3...c d d is the total number of observation points;

[0124] Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set;

[0125] Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface;

[0126] Since reaction tanks of different shapes exist, it is necessary to determine the longest line segment of the reaction tank by using the edge base points, and then set the bubble conduit according to the longest line segment;

[0127] Select n nodes from left to right on the longest line segment of the liquid surface to form n+1 sub-segments, and each sub-segment has the same length;

[0128] A bubble guide tube is vertically installed at each node;

[0129] Using each node as the center, circular regions with radii of r, 2r, and 3r are selected sequentially as the central monitoring area, where the radius 3r is less than or equal to the minimum distance within the set.

[0130] On the longest line segment of the liquid surface, obtain the center monitoring area of ​​two adjacent nodes from left to right, and denot them as the left node and the right node;

[0131] Sequentially determine the bubble density of the center monitoring area with left node radii of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area;

[0132] Sequentially determine the bubble density of the center monitoring area with right node radius of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area;

[0133] Move the bubble conduit corresponding to the right node to the left until the qualified center monitoring area of ​​the left node is tangent to the qualified monitoring area of ​​the right node;

[0134] Real-time monitoring of bubble concentration between adjacent nodes; if the bubble concentration between adjacent nodes is greater than or equal to twice the standard threshold for bubble density, then the bubble density of the current reaction tank is qualified.

[0135] By acquiring the liquid surface profile, selecting test points, and determining the maximum length of the liquid surface, bubble conduits are set along this maximum length. If the reaction tank volume is less than the volume threshold, a single bubble conduit is set. A central monitoring area is selected, and the bubble density within it is detected. If the bubble density in the central monitoring area meets the standard bubble density threshold, sub-edge monitoring areas are defined, and the bubble conduit angle is adjusted to below each sub-edge monitoring area to accelerate the increase in bubble density. If the reaction tank volume is greater than or equal to the volume threshold, multiple bubble conduits are set, and each bubble conduit is divided into multiple central monitoring areas with different radii and the same center. The bubble density in the central monitoring areas of each bubble conduit at different radii is determined, and the central monitoring areas with qualified bubble densities are marked. The positions of adjacent bubble conduits are adjusted so that the bubble density in the area between adjacent conduits is greater than or equal to the standard bubble density threshold. Based on the reaction tank volume and the number of bubble conduits, corresponding bubble density qualification criteria are adopted. This allows for the rational allocation of resources, avoiding resource waste due to too many or too few bubble conduits, and reducing the bubble density difference between different areas, thereby improving the bubble generation efficiency of the reaction tank and significantly shortening the time required for the reaction tank to achieve qualified bubble density.

[0136] When the bubble density is within acceptable limits, a bubble removal operation is performed, as follows:

[0137] When the bubble density in the reaction tank is within acceptable limits, remove all bubbles from the liquid surface.

[0138] When the bubble density in the reaction tank is zero, bubbles are injected into the reaction tank, and the bubble density in the reaction tank is monitored in real time.

[0139] The model is used to obtain the removal data of all electroplating wastewater with the same reaction tank type and volume. The removal data is the number of removals.

[0140] By calculating the average number of cleanups mentioned above, the average number of cleanups is set as the current number of cleanups;

[0141] By monitoring bubble density in real time and calculating the number of removal operations based on the model, bubble removal operations can be arranged more rationally, ensuring the continuity and stability of the wastewater treatment process.

[0142] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0143] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency treatment process for electroplating wastewater, characterized in that: include, Collect relevant data on electroplating wastewater at different volumes and train the model. The relevant data includes the required bubble density for different volumes of electroplating wastewater, the time required to reach the required bubble density in the reaction tank, and the number of times bubbles need to be removed. The volume of electroplating wastewater is obtained, and the trained model sets a bubble density standard threshold based on the obtained electroplating wastewater volume. The bubble density standard threshold is a constant. The number of bubble conduits is determined based on the volume of the reaction tank, and the corresponding bubble density qualification standard is adopted. If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring areas is controlled by adjusting the angle of the bubble guide tubes. The monitoring area includes a central monitoring area and an edge monitoring area, and the edge monitoring area includes sub-edge monitoring areas; If there are multiple bubble conduits in the reaction tank, then divide the central monitoring areas of multiple adjacent bubble conduits, and adjust the distance between adjacent bubble conduits according to the bubble density of different central monitoring areas; When the bubble density is within acceptable limits, perform bubble removal.

2. The high-efficiency treatment process for electroplating wastewater according to claim 1, characterized in that: The determination of the number of bubble conduits based on the reaction tank volume, and the adoption of corresponding bubble density qualification standards, include: Set a volume threshold; If the volume of the reaction tank is less than the volume threshold, then the number of bubble conduits in the reaction tank is one. If the volume of the reaction tank is greater than or equal to the volume threshold, then there are multiple bubble conduits in the reaction tank.

3. The high-efficiency treatment process for electroplating wastewater according to claim 1, characterized in that: If the number of bubble guide tubes in the reaction tank is single, the surface of the electroplating wastewater is divided into multiple monitoring zones. The bubble density in the monitoring zones is controlled by adjusting the angle of the bubble guide tubes, including: Electroplating wastewater is injected into the reaction tank; Obtain the outline of the liquid surface edge; Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as . , , ... d is the total number of observation points; Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set; Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface; A bubble guide tube is vertically installed at the center point of the longest line segment of the liquid surface; Using the center point of the longest line segment on the liquid surface as the center point, a circular area with radius r is selected as the central monitoring area, where radius r is less than or equal to the minimum distance within the set; Real-time acquisition of bubble density within the central monitoring area; If the bubble density within the central monitoring area is greater than or equal to the standard threshold for bubble density, then the area outside the central monitoring area is marked as the edge monitoring area. Two perpendicular lines are drawn through the center point of the longest line segment on the liquid surface. The angle formed by the two lines is recorded as the initial angle. The edge monitoring area is divided into four sub-edge monitoring areas. The two lines and the edge of the liquid surface are on the same plane. The bubble density in each sub-edge monitoring area is obtained and the bubble density is entered into the monitoring set in ascending order. Adjust the bubble guide angle according to the bubble density in different sub-edge monitoring areas.

4. The high-efficiency treatment process for electroplating wastewater according to claim 3, characterized in that: The step of adjusting the bubble conduit angle based on the bubble density in different sub-edge monitoring areas includes: The sub-edge monitoring region corresponding to the minimum bubble density in the monitoring set is selected as the minimum density monitoring area for the first angle adjustment. Draw the angle bisectors of the two initial included angles, keep the position of the bubble guide tube at the center of the liquid surface unchanged, adjust the angle between the bubble guide tube and the vertical direction, select the angle bisector passing through the minimum density monitoring area as the adjustment path, and adjust the angle between the bubble guide tube and the vertical direction to 15 degrees along the adjustment path. Real-time monitoring of bubble density in the minimum density monitoring zone.

5. The high-efficiency treatment process for electroplating wastewater according to claim 4, characterized in that: If the bubble density in the minimum density monitoring area is greater than or equal to the standard threshold for bubble density, a second angle adjustment is performed. Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time. If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, then a third angle adjustment is performed; Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time. If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, then a fourth angle adjustment is performed; Keeping the bubble guide tube in the center of the liquid surface unchanged, rotate the bubble guide tube 90 degrees clockwise along the edge of the central monitoring area, and monitor the bubble density of the sub-edge monitoring area closest to the bubble outlet at the bottom of the bubble guide tube in real time. If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, then the bubble density in the current reaction tank is qualified.

6. The high-efficiency treatment process for electroplating wastewater according to claim 1, characterized in that: If there are multiple bubble conduits in the reaction tank, then the central monitoring zones of multiple adjacent bubble conduits are divided, and the distance between adjacent bubble conduits is adjusted according to the bubble density of different central monitoring zones, including: Obtain the outline of the liquid surface edge; Choose any point on the edge contour of the liquid surface as the base point, and select points at intervals of length b clockwise from the base point as observation points, denoted as . , , ... d is the total number of observation points; Select observation points in pairs, obtain the distance between each pair of observation points, and enter the distance set; Select the two observation points with the greatest distance and connect them to form the longest line segment on the liquid surface; Select n nodes from left to right on the longest line segment of the liquid surface to form n+1 sub-segments, and each sub-segment has the same length; A bubble guide tube is vertically installed at each node; Using each node as the center, circular regions with radii of r, 2r, and 3r are selected sequentially as the central monitoring area, where the radius 3r is less than or equal to the minimum distance within the set. For each pair of adjacent nodes, the central monitoring area of ​​the two adjacent nodes is obtained from left to right on the longest line segment of the liquid surface, and is denoted as the left node and the right node. Sequentially determine the bubble density of the center monitoring area with left node radii of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area; Sequentially determine the bubble density of the center monitoring area with right node radius of r, 2r, and 3r, and mark the center monitoring area with bubble density greater than or equal to the standard threshold of bubble density as a qualified center monitoring area; Move the bubble conduit corresponding to the right node to the left until the qualified center monitoring area of ​​the left node is tangent to the qualified monitoring area of ​​the right node; The bubble density between adjacent nodes is monitored in real time. If the bubble density between adjacent nodes is greater than or equal to twice the standard threshold for bubble density, then the bubble density of the current reaction tank is qualified.

7. The high-efficiency treatment process for electroplating wastewater according to claim 1, characterized in that: When the bubble density is within acceptable limits, a bubble removal operation is performed, as follows: When the bubble density in the reaction tank is within acceptable limits, remove all bubbles from the liquid surface. When the bubble density in the reaction tank is zero, bubbles are injected into the reaction tank, and the bubble density in the reaction tank is monitored in real time. Obtain the removal data for all electroplating wastewater with the same reaction tank type and volume. The removal data represents the total number of bubble removal operations required to complete the electroplating wastewater treatment. The average number of cleaning cycles is calculated and set as the current cleaning cycle, which controls the number of bubble removal cycles required for the current batch of electroplating wastewater.

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