Efficient treatment process for electroplating wastewater

Abstract

The invention relates to the technical field of wastewater treatment, and discloses an efficient electroplating wastewater treatment process which comprises the following steps: setting one or more bubble guide pipes by acquiring the volume of a reaction tank, and setting the bubble guide pipes by selecting the longest line section as a path according to the liquid level outline of wastewater, according to the invention, each bubble conduit is divided into one or more test areas, and different adjustment strategies are adopted for the corresponding number of bubble conduits by observing the bubble density of the test areas in real time to ensure that the bubble density in the reaction tank can reach the qualified standard, so that the wastewater treatment efficiency can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a high-efficiency treatment process for electroplating wastewater. Background Art

[0002] Electroplating wastewater refers to wastewater generated during the electroplating production process, mainly including pre-treatment wastewater, plating rinsing wastewater, post-treatment wastewater and waste plating solution. These wastewaters come from various links of the electroplating process, including wastewater generated in rust removal and oil removal, electroplating, polishing and post-passivation water washing. The water quality of electroplating wastewater is complex, containing a variety of heavy metal ions, such as chromium, copper, nickel, zinc, lead, cadmium, mercury, etc. These pollutants themselves or their compounds are toxic to organisms under certain conditions, and some even have the risk of carcinogenesis, so reasonable methods must be adopted to treat them.

[0003] Among physical methods, wastewater can be treated by using flotation. However, on the one hand, the bubbles generated by the flotation method are unevenly distributed, there are obvious differences in bubble density in different areas, and the bubble duct cannot be adjusted, which leads to a longer time for the reaction pool to reach a qualified bubble density. This will greatly reduce the efficiency of the flotation method for wastewater treatment. On the other hand, the existing process ignores the setting of the number of bubble ducts according to the size of the reaction pool.

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

[0005] The present invention provides an efficient electroplating wastewater treatment process for promoting the solution of the problems mentioned in the above background technology.

[0006] The present invention provides the following technical solution: a highly efficient electroplating wastewater treatment process,

[0007] Optionally, a highly efficient electroplating wastewater treatment process comprises:

[0008] Collect relevant data corresponding to electroplating wastewater at different volumes for model training;

[0009] The relevant data include the required bubble density of electroplating wastewater at different volumes, the time required to reach the required bubble density in the reaction tank, and the number of times the bubbles are removed;

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

[0011] Determine the number of bubble tubes according to the volume of the reaction pool, and adopt the corresponding bubble density qualification judgment standard;

[0012] If there is only one bubble duct in the reaction tank, the liquid level of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct;

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

[0014] If there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distance between the adjacent bubble ducts is adjusted according to the bubble density in different central monitoring areas, and the multiple refers to more than two;

[0015] When the bubble density is qualified, perform bubble removal operation.

[0016] Optionally, the corresponding bubble density qualification judgment standard is adopted according to the number of bubble ducts in the reaction pool:

[0017] Set volume thresholds;

[0018] If the volume of the reaction pool is less than the volume threshold, the number of bubble ducts in the reaction pool is single;

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

[0020] Optionally, if the number of bubble ducts in the reaction tank is only one, the liquid level of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct:

[0021] injecting electroplating wastewater into the reaction tank;

[0022] Obtaining the liquid surface edge contour;

[0023] Select any point on the edge of the liquid surface as the base point, and select points with a length of 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 two by two, obtain the distance between the two observation points, and enter the distance set;

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

[0026] A bubble conduit is vertically arranged at the center point of the longest line segment of the liquid surface;

[0027] Take the center point of the longest line segment of the liquid surface as the circle point, select a circular area with a radius of r as the central monitoring area, and the radius r is less than or equal to the minimum distance value in the distance set;

[0028] Set the bubble density standard threshold;

[0029] Obtain the bubble concentration in the central monitoring area in real time;

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

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

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

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

[0034] The sub-monitoring area corresponding to the minimum inner bubble density of the monitoring set is selected as the minimum density monitoring area to perform the first angle adjustment;

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

[0036] Monitor the bubble density in the minimum density monitoring area in real time.

[0037] Optionally, if the number of bubble ducts in the reaction tank is only one, the liquid level of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct:

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

[0039] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

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

[0041] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

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

[0043] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

[0044] If the bubble density in the above-mentioned sub-edge monitoring area is greater than or equal to the bubble density threshold, the bubble density of the current reaction pool is qualified.

[0045] Optionally, if there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distance between the adjacent bubble ducts is adjusted according to the bubble density in different central monitoring areas:

[0046] Obtaining the liquid surface edge contour;

[0047] Select any point on the edge of the liquid surface as the base point, and select points with a length of 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 two by two, obtain the distance between the two observation points, and enter the distance set;

[0049] Select two observation points with the largest distance and connect them to form the longest line segment of 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 conduit is vertically arranged at each node;

[0052] Taking each node as the center, circular areas with radii of r, 2r, and 3r are selected as the central monitoring area, and the radius 3r is less than or equal to the minimum distance in the distance set;

[0053] Obtain the central monitoring areas of two adjacent nodes from left to right on the longest line segment of the liquid surface, and record them as the left node and the right node;

[0054] Determine the bubble density of the central monitoring area with the left node radius of r, 2r, and 3r in turn, and mark the central monitoring area with a bubble density greater than or equal to the bubble density standard threshold as a qualified central monitoring area;

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

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

[0057] The bubble concentration between adjacent nodes is monitored in real time. If the bubble concentration between adjacent nodes is greater than or equal to twice the bubble density standard threshold, the current reaction pool bubble density is qualified.

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

[0059] When the bubble density in the reaction pool is qualified, remove all bubbles on the liquid surface;

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

[0061] According to the model, the removal data of all electroplating wastewaters with the same reaction tank type and the same volume are obtained, and the removal data is the number of removals;

[0062] By calculating the above average number of clearing times, the average number of clearing times is set as the current number of clearing times.

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

[0064] 1. This is an efficient electroplating wastewater treatment process. By collecting relevant data of electroplating wastewater of different volumes and conducting model training, the bubble density can be controlled more accurately, thereby improving the efficiency of wastewater treatment.

[0065] 2. This is an efficient treatment process for electroplating wastewater. The process is suitable for reaction tanks of different volumes and types. It has strong adaptability and can meet the needs of electroplating wastewater treatment under different scales and conditions.

[0066] 3. A highly efficient electroplating wastewater treatment process obtains the liquid surface contour, selects the test point, determines the maximum length of the liquid surface, sets a bubble duct on the maximum length of the liquid surface, and sets a single bubble duct if the reaction pool volume is less than the volume threshold. The central monitoring area is selected and the bubble density of the central monitoring area is detected. When the bubble density of the central monitoring area meets the bubble density standard threshold, the sub-edge monitoring area is divided, and the angle of the bubble duct is adjusted to the bottom of each sub-edge monitoring area to accelerate the improvement of the bubble density of the sub-edge monitoring area. If the reaction pool volume is greater than or equal to the volume threshold, multiple bubble ducts are set, and each bubble duct is divided into multiple different half-spaces. The bubble density of the central monitoring area under different radii of each bubble duct is judged respectively, and the central monitoring area with qualified bubble density is marked. The positions of two adjacent bubble ducts are adjusted to make the regional bubble density between the adjacent ducts greater than or equal to the standard threshold of bubble density. According to the volume of the reaction pool and the number of bubble ducts, the corresponding qualified bubble density judgment standard is adopted, which can reasonably allocate resources and avoid waste of resources caused by too many or too few bubble ducts, and can reduce the difference in bubble density between different areas, thereby improving the bubble generation efficiency of the reaction pool and greatly shortening the qualified bubble density time of the reaction pool.

[0067] 4. This is an efficient electroplating wastewater treatment process. By setting a standard threshold for bubble density and real-time monitoring of bubble density, it can ensure that the bubble density in the electroplating wastewater reaches an optimal state, which is conducive to the pollutants in the wastewater to fully contact with the bubbles and separate from the water.

[0068] 5. This is an efficient electroplating wastewater treatment process. For a single bubble duct, by dividing it into multiple monitoring areas and adjusting the duct angle, the bubble density in different areas can be more finely controlled to improve the treatment effect.

[0069] 6. This highly efficient electroplating wastewater treatment process can reduce unnecessary energy consumption and lower operating costs while ensuring the treatment effect by real-time monitoring and adjusting the bubble duct angle.

[0070] 7. This is an efficient electroplating wastewater treatment process. By real-time monitoring of bubble density and calculating the number of removals based on the model, the bubble removal operation can be arranged more reasonably to ensure the continuity and stability of the wastewater treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0073] Figure 3 It is a schematic diagram of multiple bubble ducts of the present invention. DETAILED DESCRIPTION

[0074] 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.

[0075] Example 1, see Figures 1 to 3 , a highly efficient electroplating wastewater treatment process, comprising:

[0076] Collect relevant data corresponding to electroplating wastewater at different volumes for model training;

[0077] The relevant data include the required bubble density of electroplating wastewater at different volumes, the time required to reach the required bubble density in the reaction tank, and the number of times the bubbles are removed;

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

[0079] The standard threshold of bubble density is used to define the bubble density required for electroplating wastewater treatment;

[0080] Determine the number of bubble tubes according to the volume of the reaction pool, and adopt the corresponding bubble density qualification judgment standard;

[0081] If there is only one bubble duct in the reaction tank, the liquid level of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct;

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

[0083] If there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distance between the adjacent bubble ducts is adjusted according to the bubble density in different central monitoring areas, and the multiple refers to more than two;

[0084] When the bubble density is qualified, the bubble removal operation is performed;

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

[0086] According to the number of bubble tubes in the reaction pool, the corresponding bubble density qualification judgment standard is adopted:

[0087] Set volume thresholds;

[0088] The volume threshold is a constant, which is used to define the volume of the reaction pool and then select different numbers of bubble tubes;

[0089] If the volume of the reaction pool is less than the volume threshold, the number of bubble ducts in the reaction pool is single;

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

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

[0092] See also Figure 2 If the number of bubble ducts in the reaction tank is single, the electroplating wastewater level is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct:

[0093] injecting electroplating wastewater into the reaction tank;

[0094] Obtaining the liquid surface edge contour;

[0095] Select any point on the edge of the liquid surface as the base point, and select points with a length of 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 two by two, obtain the distance between the two observation points, and enter the distance set;

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

[0098] A bubble conduit is vertically arranged at the center point of the longest line segment of the liquid surface;

[0099] Take the center point of the longest line segment of the liquid surface as the circle point, select a circular area with a radius of r as the central monitoring area, and the radius r is less than or equal to the minimum distance value in the distance set;

[0100] Set the bubble density standard threshold;

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

[0102] By setting the standard threshold of bubble density and real-time monitoring of bubble density, it is possible to ensure that the bubble density in electroplating wastewater reaches the optimal state, which is conducive to the pollutants in the wastewater fully contacting with the bubbles and separating from the water;

[0103] Obtain the bubble concentration in the central monitoring area in real time;

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

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

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

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

[0108] The sub-monitoring area corresponding to the minimum inner bubble density of the monitoring set is selected as the minimum density monitoring area to perform the first angle adjustment;

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

[0110] Monitor the bubble density in the minimum density monitoring area in real time.

[0111] If the number of bubble ducts in the reaction pool is only one, the electroplating wastewater surface is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct:

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

[0113] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

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

[0115] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

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

[0117] Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time;

[0118] If the bubble density in the above-mentioned sub-edge monitoring area is greater than or equal to the bubble density threshold, the current bubble density of the reaction pool is qualified;

[0119] For a single bubble catheter, by dividing it into multiple monitoring areas and adjusting the catheter angle, the bubble density in different areas can be more finely controlled to improve the treatment effect;

[0120] By real-time monitoring and adjusting the angle of the bubble duct, unnecessary energy consumption can be reduced while ensuring the treatment effect, thereby lowering operating costs.

[0121] See also Figure 3 If there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distance between the adjacent bubble ducts is adjusted according to the bubble density in different central monitoring areas:

[0122] Obtaining the liquid surface edge contour;

[0123] Select any point on the edge of the liquid surface as the base point, and select points with a length of 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 two by two, obtain the distance between the two observation points, and enter the distance set;

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

[0126] Since there are reaction pools of different shapes, it is necessary to determine the longest line segment of the reaction pool through the edge base point, and 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 conduit is vertically arranged at each node;

[0129] Taking each node as the center, circular areas with radii of r, 2r, and 3r are selected as the central monitoring area, and the radius 3r is less than or equal to the minimum distance in the distance set;

[0130] Obtain the central monitoring areas of two adjacent nodes from left to right on the longest line segment of the liquid surface, and record them as the left node and the right node;

[0131] Determine the bubble density of the central monitoring area with the left node radius of r, 2r, and 3r in turn, and mark the central monitoring area with a bubble density greater than or equal to the bubble density standard threshold as a qualified central monitoring area;

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

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

[0134] Monitor the bubble concentration between adjacent nodes in real time. If the bubble concentration between adjacent nodes is greater than or equal to twice the standard threshold of bubble density, the current reaction pool bubble density is qualified.

[0135] By obtaining the liquid surface contour, selecting the test point, determining the maximum length of the liquid surface, and setting the bubble duct on the maximum length of the liquid surface, if the reaction pool volume is less than the volume threshold, a single bubble duct is set, by selecting the central monitoring area and detecting the bubble density of the central monitoring area, when the bubble density of the central monitoring area meets the bubble density standard threshold, the sub-edge monitoring area is divided, and the angle of the bubble duct is adjusted to the bottom of each sub-edge monitoring area to accelerate the improvement of the bubble density of the sub-edge monitoring area; if the reaction pool volume is greater than or equal to the volume threshold, multiple bubble ducts are set, each bubble duct is divided into multiple central monitoring areas with different radii and the same center, the bubble density of the central monitoring area under different radii of each bubble duct is judged respectively, and the central monitoring area with qualified bubble density is marked, and the positions of two adjacent bubble ducts are adjusted so that the bubble density of the area between the adjacent ducts is greater than or equal to the bubble density standard threshold. According to the reaction pool volume and the number of bubble ducts, the corresponding bubble density qualified judgment standard is adopted, so that resources can be reasonably allocated, and resource waste caused by too many or too few bubble ducts can be avoided, and the bubble density difference between different areas can be reduced, thereby improving the bubble generation efficiency of the reaction pool and greatly shortening the qualified time of the bubble density of the reaction pool.

[0136] When the bubble density is qualified, the bubble removal operation is performed, as follows:

[0137] When the bubble density in the reaction pool is qualified, remove all bubbles on the liquid surface;

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

[0139] According to the model, the removal data of all electroplating wastewaters with the same reaction tank type and the same volume are obtained, and the removal data is the number of removals;

[0140] By calculating the average number of clearing times, the average number of clearing times is set as the current number of clearing times;

[0141] By monitoring the bubble density in real time and calculating the removal times according to the model, the bubble removal operation can be arranged more reasonably to ensure the continuity and stability of the wastewater treatment process.

[0142] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0143] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A highly efficient electroplating wastewater treatment process, characterized in that: include, Collect relevant data corresponding to electroplating wastewater at different volumes for model training; The relevant data include the required bubble density of electroplating wastewater at different volumes, the time required to reach the required bubble density in the reaction tank, and the number of times the bubbles are removed; The volume of electroplating wastewater is obtained, and a bubble density standard threshold is set according to the model, wherein the bubble density standard threshold is a constant; Determine the number of bubble tubes according to the volume of the reaction pool, and adopt the corresponding bubble density qualification judgment standard; If there is only one bubble duct in the reaction tank, the liquid level of the electroplating wastewater is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct; The monitoring area includes a central monitoring area and an edge monitoring area, and the edge monitoring area includes a sub-edge monitoring area; If there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distances between the adjacent bubble ducts are adjusted according to the bubble density in different central monitoring areas; When the bubble density is qualified, perform bubble removal operation.

2. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: According to the number of bubble tubes in the reaction pool, the corresponding bubble density qualification judgment standard is adopted: Set volume thresholds; If the volume of the reaction pool is less than the volume threshold, the number of bubble ducts in the reaction pool is single; If the volume of the reaction pool is greater than or equal to the volume threshold, then the number of bubble ducts in the reaction pool is multiple, and multiple means more than two.

3. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: If the number of bubble ducts in the reaction pool is only one, the electroplating wastewater surface is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct: injecting electroplating wastewater into the reaction tank; Obtaining the liquid surface edge contour; Select any point on the edge of the liquid surface as the base point, and select points with a length of b clockwise from the base point as observation points, denoted as c1, c2, c3...c d , d is the total number of observation points; Select observation points two by two, obtain the distance between the two observation points, and enter the distance set; Select two observation points with the largest distance and connect them to form the longest line segment of the liquid surface; A bubble conduit is vertically arranged at the center point of the longest line segment of the liquid surface; Take the center point of the longest line segment of the liquid surface as the circle point, select a circular area with a radius of r as the central monitoring area, and the radius r is less than or equal to the minimum distance value in the distance set; Set the bubble density standard threshold; Obtain the bubble concentration in the central monitoring area in real time; If the bubble concentration in the central monitoring area is greater than or equal to the bubble density standard threshold, the area outside the central monitoring area is marked as the edge monitoring area; Draw two perpendicular straight lines through the center point of the longest line segment of the liquid surface. The angle formed by the two straight lines is recorded as the initial angle. The edge monitoring area is divided into four sub-edge monitoring areas. The two straight lines and the edge of the liquid surface are in the same plane. The bubble density in the sub-edge monitoring area is obtained respectively, and the bubble density is recorded in the monitoring set in ascending order. Adjust the angle of the bubble duct according to the bubble density in different sub-edge monitoring areas.

4. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: The angle of the bubble duct is adjusted in sequence according to the bubble density in different sub-edge monitoring areas; The sub-monitoring area corresponding to the minimum bubble density of the monitoring set is selected as the minimum density monitoring area to perform the first angle adjustment; Draw two bisectors of the initial angle, keep the bubble conduit at the center of the liquid surface unchanged, adjust the angle between the bubble conduit and the vertical direction, select the bisector of the angle passing through the minimum density monitoring area as the adjustment path, and adjust the angle between the bubble conduit and the vertical direction to 15 degrees along the adjustment path; Monitor the bubble density in the minimum density monitoring area in real time.

5. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: If the number of bubble ducts in the reaction pool is only one, the electroplating wastewater surface is divided into multiple monitoring areas, and the bubble density in the monitoring area is controlled by adjusting the angle of the bubble duct: If the bubble density in the minimum density monitoring area is greater than or equal to the bubble density standard threshold, a second angle adjustment is performed; Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time; If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, a third angle adjustment is performed; Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time; If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, the fourth angle adjustment is performed; Keep the bubble conduit at the center of the liquid surface unchanged, rotate the bubble conduit 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 conduit in real time; If the bubble density in the sub-edge monitoring area is greater than or equal to the bubble density threshold, the current reaction pool bubble density is qualified.

6. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: If there are multiple bubble ducts in the reaction pool, the central monitoring areas of the multiple adjacent bubble ducts are divided, and the distance between the adjacent bubble ducts is adjusted according to the bubble density in different central monitoring areas: Obtaining the liquid surface edge contour; Select any point on the edge of the liquid surface as the base point, and select points with a length of b clockwise from the base point as observation points, denoted as c1, c2, c3...c d , d is the total number of observation points; Select observation points two by two, obtain the distance between the two observation points, and enter the distance set; Select two observation points with the largest distance and connect them to form the longest line segment of 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 conduit is vertically arranged at each node; Taking each node as the center, circular areas with radii of r, 2r, and 3r are selected as the central monitoring area, and the radius 3r is less than or equal to the minimum distance in the distance set; Obtain the central monitoring areas of two adjacent nodes from left to right on the longest line segment of the liquid surface, and record them as the left node and the right node; Determine the bubble density of the central monitoring area with the left node radius of r, 2r, and 3r in turn, and mark the central monitoring area with a bubble density greater than or equal to the bubble density standard threshold as a qualified central monitoring area; Determine the bubble density of the central monitoring area with the right node radius of r, 2r, and 3r in turn, and mark the central monitoring area with a bubble density greater than or equal to the bubble density standard threshold as a qualified central monitoring area; Move the bubble conduit corresponding to the right node to the left until the qualified central monitoring area of ​​the left node is tangent to the qualified monitoring area of ​​the right node; The bubble concentration between adjacent nodes is monitored in real time. If the bubble concentration between adjacent nodes is greater than or equal to twice the standard threshold of the bubble density, the current reaction pool bubble density is qualified.

7. The highly efficient electroplating wastewater treatment process according to claim 1, characterized in that: When the bubble density is qualified, the bubble removal operation is performed, as follows: When the bubble density in the reaction pool is qualified, remove all bubbles on the liquid surface; When the bubble density in the reaction pool is zero, bubbles are injected into the reaction pool, and the bubble density in the reaction pool is monitored in real time; According to the model, the removal data of all electroplating wastewaters with the same reaction tank type and the same volume are obtained, and the removal data is the number of removals; By calculating the above average number of clearing times, the average number of clearing times is set as the current number of clearing times.

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