Cyanide-containing sewage adsorption and purification device

Abstract

The utility model provides a cyanide-containing sewage adsorption and purification device, which relates to the technical field of sewage treatment, and comprises a liquid inlet assembly communicated with a sewage outlet and used for controlling sewage liquid inlet flow; the plurality of adsorption assemblies are arranged on the liquid inlet assembly and are provided with adsorption cavities; the plurality of connecting pipes are arranged among the plurality of adsorption assemblies and are communicated with the adsorption cavity; the liquid outlet assembly is arranged at the ends, away from the liquid inlet assembly, of the multiple adsorption assemblies, and the controller is arranged on the liquid outlet assembly and electrically connected with the liquid outlet assembly and the liquid inlet assembly; the plurality of adsorption groups are combined to form a multi-stage adsorption cavity and perform multi-stage adsorption purification on cyanogen-containing sewage, the liquid outlet assembly monitors and discharges the sewage after adsorption purification and transmits a monitoring result to the controller, and the controller controls the liquid inlet assembly to adjust the inlet amount of the sewage according to the monitoring result. The cyanogen-containing waste liquid treatment device solves the problem that the cyanogen-containing waste liquid in the prior art can reach the discharge standard after being repeatedly and circularly adsorbed and filtered for multiple times.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a cyanide-containing wastewater adsorption and purification device. Background Technology

[0002] Cyanide is harmful not only to humans, but also to aquatic life and crops, so the treatment of cyanide-containing wastewater is of utmost importance.

[0003] Existing methods for treating cyanide-containing wastewater include chemical oxidation, biological treatment, and adsorption. While chemical oxidation offers good treatment results, it consumes large quantities of reagents, is costly, and is prone to secondary pollution. Biological treatment has stringent requirements for water quality and operating conditions, and its adaptability is poor. Adsorption is widely used due to its simple operation and relatively low cost, but traditional cyanide-containing wastewater adsorption devices require repeated cycles of adsorption to meet national emission standards, thus reducing the wastewater discharge efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a cyanide-containing wastewater adsorption and purification device, which solves the problem in the prior art that cyanide-containing wastewater needs to be repeatedly circulated and adsorbed and filtered multiple times before it can meet the discharge standards.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A cyanide-containing wastewater adsorption and purification device, comprising:

[0007] The liquid inlet assembly is connected to the sewage outlet and is used to control the sewage inlet flow rate;

[0008] Multiple adsorption components are disposed on the liquid inlet component and have adsorption chambers.

[0009] Multiple connecting tubes are disposed between multiple adsorption components and communicate with the adsorption chamber;

[0010] A liquid outlet assembly is disposed at one end of the plurality of adsorption assemblies away from the liquid inlet assembly, and the liquid outlet assembly is used to monitor the cyanide concentration of the liquid outlet.

[0011] A controller is disposed on the liquid outlet assembly and electrically connected to the liquid outlet assembly and the liquid inlet assembly;

[0012] The adsorption components are combined to form a multi-stage adsorption chamber to sequentially adsorb cyanide in cyanide-containing wastewater and purify the wastewater. The effluent component monitors and discharges the adsorbed and purified wastewater and transmits the monitoring results to the controller. The controller then controls the influent component to adjust the amount of wastewater entering the wastewater based on the monitoring results.

[0013] According to the cyanide-containing wastewater adsorption and purification device provided by this utility model, the liquid inlet assembly includes:

[0014] An inlet pipe, which is connected to the wastewater outlet;

[0015] A flow control valve is installed on the inlet pipe and electrically connected to the controller, whose opening degree is controlled by the controller.

[0016] According to the cyanide-containing wastewater adsorption and purification device provided by this utility model, the inlet pipe includes:

[0017] A pretreatment tube is integrally formed at one end of the liquid inlet tube and has a pretreatment cavity. Multiple reaction pack placement slots are evenly formed along the edge of the inner wall of the pretreatment cavity.

[0018] A chemical reaction package, wherein the chemical reaction package is correspondingly embedded in the reaction package placement slot.

[0019] According to the cyanide-containing wastewater adsorption and purification device provided by this utility model, the plurality of adsorption components include:

[0020] A first adsorption cylinder is connected to one end of the liquid inlet assembly and has a first adsorption chamber.

[0021] The second adsorption cylinder is connected to the first adsorption cylinder through the connecting pipe and has a second adsorption cavity.

[0022] The third adsorption cylinder is connected to the second adsorption cylinder through the connecting pipe and has a third adsorption chamber.

[0023] The first adsorption cylinder, the second adsorption cylinder, and the third adsorption cylinder are combined to form a multi-stage adsorption structure.

[0024] According to the cyanide-containing wastewater adsorption and purification device provided by this utility model, the plurality of adsorption components further include:

[0025] An activated carbon adsorbent layer is provided and filled in the first adsorption chamber;

[0026] An ion exchange resin adsorbent layer is provided and filled in the second adsorption chamber;

[0027] A nano-titanium dioxide modified adsorbent layer is filled and disposed in the third adsorption chamber.

[0028] According to the cyanide-containing wastewater adsorption and purification device provided by this utility model, the effluent assembly includes:

[0029] A liquid outlet pipe is connected to one end of the plurality of adsorption components that is away from the liquid inlet component;

[0030] A water quality monitoring sensor is disposed on the outlet pipe and extends through and into the interior of the outlet pipe;

[0031] The water quality monitoring sensor is used to monitor values ​​such as the cyanide concentration in the filtered water and is electrically connected to the controller to transmit the values ​​to the controller.

[0032] In summary, the beneficial technical effects of this utility model are as follows:

[0033] By setting up multiple adsorption components and connecting them sequentially through connecting pipes, a multi-stage adsorption device is formed. Wastewater is introduced through the inlet component and then adsorbed step by step by the multi-stage adsorption components, thoroughly adsorbing and filtering the cyanide in the wastewater from high to low concentration. This reduces the content in the discharged wastewater, enabling it to quickly meet the national emission standards. At the same time, the discharged wastewater is monitored in real time through the outlet component. Based on the monitoring results, the controller controls the amount of water supplied from the inlet component to the adsorption components. This solves the problem of low wastewater purification capacity caused by the need for multiple adsorption cycles in existing technologies.

[0034] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0037] Figure 2 This is a schematic diagram of the bottom structure of an embodiment of the present invention;

[0038] Figure 3This is a side view of the structural plan of an embodiment of the present utility model;

[0039] Figure 4 yes Figure 3 Cross-sectional view at point AA;

[0040] Figure 5 yes Figure 2 Enlarged view of point A in the middle;

[0041] Figure 6 yes Figure 4 Enlarged view of section B in the middle.

[0042] Figure label:

[0043] 10. Liquid inlet assembly; 11. Liquid inlet pipe; 12. Flow control valve;

[0044] 111. Pretreatment tube; 112. Chemical reaction package;

[0045] 20. Adsorption assembly; 21. First adsorption cylinder; 22. Second adsorption cylinder; 23. Third adsorption cylinder;

[0046] 211. Activated carbon adsorbent layer; 221. Ion exchange resin adsorbent layer; 231. Nano-titanium dioxide modified adsorbent layer;

[0047] 30. Connecting pipe;

[0048] 40. Liquid discharge assembly; 41. Liquid discharge pipe; 42. Water quality monitoring sensor;

[0049] 50. Controller. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0051] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0053] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] The following is combined Figures 1-6 The embodiments shown illustrate the technical solution of this utility model:

[0056] A cyanide-containing wastewater adsorption and purification device includes an inlet assembly 10 connected to a wastewater outlet and used to control the wastewater inflow rate; multiple adsorption components 20 disposed on the inlet assembly 10 and having adsorption chambers; multiple connecting pipes 30 disposed between the adsorption components 20 and connected to the adsorption chambers; an outlet assembly 40 disposed at the end of the adsorption components 20 away from the inlet assembly 10 and used to monitor the cyanide concentration in the outlet; and a controller 50 disposed on the outlet assembly 40 and electrically connected to both the outlet assembly 40 and the inlet assembly 10. The multiple adsorption components 20 are combined to form a multi-stage adsorption chamber to sequentially adsorb cyanide in the cyanide-containing wastewater and purify the wastewater. The outlet assembly 40 monitors and discharges the purified wastewater and transmits the monitoring results to the controller 50, which then controls the inlet assembly 10 to adjust the wastewater inflow rate based on the monitoring results.

[0057] It is understandable that the inlet component 10 can be used to transport sewage and control the flow rate of sewage. By accurately controlling the inflow of sewage, the adsorption of sewage by multiple adsorption components 20 can be more thorough, allowing the sewage to stay in the multi-stage adsorption chamber composed of multiple adsorption components 20 for a longer time, thus making the adsorption more complete. At the same time, due to the multi-stage adsorption, the sewage flows through each stage, and the different levels of cyanide in the sewage are filtered through each stage of adsorption. As a result, the cyanide content in the water discharged by the outlet component 40 is lower than the national standard. That is, cyanide filtration can be completed through a single adsorption, which improves the sewage purification discharge capacity. At the same time, the concentration of cyanide in the filtered water can be monitored during the discharge process through the outlet component 40. When the concentration exceeds the specified value, the controller 50 controls the inlet component 10 to control the inflow of water, so that the sewage can be fully adsorbed in the adsorption components 20, thereby filtering and removing the cyanide.

[0058] The cyanide-containing wastewater adsorption and purification device provided in this embodiment of the utility model can perform multi-stage adsorption treatment on wastewater through the adsorption component 20. During treatment, the wastewater is sent into the inlet component 10 and flows through the adsorption component 20. The adsorption component 20 performs multi-stage adsorption, adsorbing the cyanide in the wastewater from large to small, so that the cyanide content in the water gradually decreases. At the same time, the adsorbed and purified water is passed into the outlet component 40. The outlet component 40 monitors the cyanide content in the water and discharges the water. When the detected content is higher than the set value, the controller 50 controls the inlet component 10 to reduce the input water flow rate, so that the water can fully contact the adsorption component 20, thereby better adsorbing and purifying the cyanide, so that the value after adsorption and purification returns to below the set value, and thus the discharged wastewater is lower than the prescribed discharge value, better protecting the environment from pollution.

[0059] According to the cyanide-containing wastewater adsorption and purification device provided in this embodiment of the present invention, the liquid inlet assembly 10 includes a liquid inlet pipe 11, which is connected to the wastewater outlet; and a flow control valve 12, which is installed on the liquid inlet pipe 11 and electrically connected to the controller 50, and the opening degree is controlled by the controller 50.

[0060] Figure 1 and Figure 2 A cyanide-containing wastewater adsorption and purification device was implemented. The inlet assembly 10 is formed by combining an inlet pipe 11 and a flow control valve 12. The inlet pipe 11 is connected to the wastewater outlet. The inlet pipe 11 is made of thickened acid and alkali resistant rubber tubing. Because rubber tubing has good flexibility, it is easy to install and bend, and can be used in different installation environments. At the same time, the inner wall of the pipe is smooth, which can reduce the resistance to wastewater flow and ensure that the wastewater can smoothly enter the adsorption assembly 20. In addition, the outside of the pipe is wrapped with a layer of heat insulation material, such as glass fiber cotton, which can effectively reduce the heat loss of wastewater during transportation, maintain the temperature stability of the wastewater, and facilitate the adsorption reaction. The flow control valve 12... Two valves are installed on the inlet pipe 11 and electrically connected to the controller 50. The controller 50 controls the opening and closing degree. At the same time, the flow control valve 12 is a high-precision electric regulating valve. This valve has the characteristics of fast response speed and high regulation accuracy. It can accurately adjust the inlet flow rate according to the concentration of wastewater, treatment requirements and instructions from the controller 50. The control signal of the regulating valve is connected to the controller 50. The opening and closing degree of the valve is controlled by the electrical signal sent by the controller 50 to realize automated flow regulation. The valve core inside the valve is made of a special corrosion-resistant alloy material and the surface is hardened to effectively resist the scouring and corrosion of cyanide-containing wastewater, ensuring the service life and regulation accuracy of the valve.

[0061] According to the cyanide-containing wastewater adsorption and purification device provided in this utility model embodiment, the inlet pipe 11 includes a pretreatment pipe 111, which is integrally formed and disposed at one end of the inlet pipe 11 and has a pretreatment cavity. Multiple reaction pack placement slots are evenly opened along the edge of the inner wall of the pretreatment cavity; chemical reaction packs 112 are correspondingly embedded in the reaction pack placement slots.

[0062] Figure 5 and Figure 6 A cyanide-containing wastewater adsorption and purification device is implemented. The inlet pipe 11 has a pretreatment pipe 111 integrally formed at the end away from the adsorption component 20. A pretreatment chamber is opened in the pretreatment pipe 111. Reaction pack placement slots are evenly opened along the inner wall edge of the pretreatment chamber. A chemical reaction pack 112 is placed in the reaction pack placement slot to react with cyanide in the wastewater and remove a portion of the cyanide. The chemical reaction pack 112 is filled with one of hydrogen peroxide, hypochlorite, or ferrous salt, so that it reacts with cyanide in the wastewater to achieve pretreatment.

[0063] According to the cyanide-containing wastewater adsorption and purification device provided in the embodiment of this utility model, a plurality of adsorption components 20 include a first adsorption cylinder 21, which is connected to one end of the liquid inlet component 10 and has a first adsorption chamber; a second adsorption cylinder 22, which is connected to the first adsorption cylinder 21 through a connecting pipe 30 and has a second adsorption chamber; and a third adsorption cylinder 23, which is connected to the second adsorption cylinder 22 through a connecting pipe 30 and has a third adsorption chamber; wherein, the first adsorption cylinder 21, the second adsorption cylinder 22 and the third adsorption cylinder 23 are combined to form a multi-stage adsorption structure.

[0064] Figure 2 and Figure 3 A cyanide-containing wastewater adsorption and purification device was implemented. Multiple adsorption components 20 are formed by combining a first adsorption cylinder 21, a second adsorption cylinder 22, and a third adsorption cylinder 23. The first adsorption cylinder 21, the second adsorption cylinder 22, and the third adsorption cylinder 23 are disc-shaped and have a first adsorption chamber, a second adsorption chamber, and a third adsorption chamber inside. The first adsorption cylinder 21, the second adsorption cylinder 22, and the third adsorption cylinder 23 are connected in series through a connecting pipe 30 to form a multi-stage adsorption component 20. Wastewater passes through the first adsorption cylinder 21, the second adsorption cylinder 22, and the third adsorption cylinder 23 from bottom to top, thereby achieving multi-stage adsorption and purification of the wastewater. This adsorbs and purifies the cyanide contained in the wastewater, making the discharged water cleaner, reducing the number of cycles during wastewater purification, and thus increasing the amount of wastewater purified.

[0065] According to the cyanide-containing wastewater adsorption and purification device provided in the embodiment of this utility model, the multiple adsorption components 20 further include an activated carbon adsorbent layer 211, which is filled in the first adsorption chamber; an ion exchange resin adsorbent layer 221, which is filled in the second adsorption chamber; and a nano-titanium dioxide modified adsorbent layer 231, which is filled in the third adsorption chamber.

[0066] Figure 4 A cyanide-containing wastewater adsorption and purification device was implemented. The first adsorption cylinder 21, the second adsorption cylinder 22, and the third adsorption cylinder 23 are sequentially filled from bottom to top with an activated carbon adsorbent layer 211, an ion exchange resin adsorbent layer 221, and a nano-titanium dioxide modified adsorbent layer 231. Specifically, the activated carbon adsorbent layer 211 is filled in the first adsorption chamber. The activated carbon adsorbent is granular and undergoes a special high-temperature activation treatment, possessing abundant micropores and mesopores, effectively adsorbing most of the cyanide and larger particulate impurities in the wastewater. The ion exchange resin adsorbent layer 221 is filled in… In the second adsorption chamber, the ion exchange resin adsorbent is a macroporous strong basic anion exchange resin. The resin surface has special functional groups, which have high selectivity and affinity for cyanide ions. The nano-titanium dioxide modified adsorbent layer 231 is filled in the third adsorption chamber. The nano-titanium dioxide modified adsorbent is made of nano-particles. The nano-titanium dioxide has undergone surface modification treatment and is loaded with special active groups, which can deeply adsorb and catalytically degrade the trace amounts of cyanide remaining in the wastewater. Through the set adsorption layers at each level, cyanide in the wastewater is better adsorbed and removed, so that the specified requirements can be met in one adsorption.

[0067] According to the cyanide-containing wastewater adsorption and purification device provided in this embodiment of the present invention, the liquid outlet component 40 includes a liquid outlet pipe 41, which is connected to one end of a plurality of adsorption components 20 away from the liquid inlet component 10; a water quality monitoring sensor 42 is disposed on the liquid outlet pipe 41 and extends through the liquid outlet pipe 41 into the interior of the liquid outlet pipe 41; wherein, the water quality monitoring sensor 42 is used to monitor values ​​such as the cyanide concentration in the filtered water and is electrically connected to the controller 50 to transmit the values ​​to the controller 50.

[0068] Figure 1 and Figure 4A cyanide-containing wastewater adsorption and purification device was implemented. The effluent assembly 40 is formed by combining an effluent pipe 41 and a water quality monitoring sensor 42. The effluent pipe 41 is connected to the end of multiple adsorption assemblies 20 away from the influent assembly 10. The water quality monitoring sensor 42 is installed on the effluent pipe 41 and extends through the inside of the effluent pipe 41. The effluent pipe 41 is made of stainless steel and the inside of the pipe is polished to reduce water flow resistance. A one-way valve (not shown in the figure) is installed on the effluent pipe 41 to prevent the treated water from flowing back into the adsorption assembly 20. The water quality monitoring sensor 42 is a multi-parameter online monitor that can monitor the water quality in real time. The outlet pipe 41 displays parameters such as cyanide concentration, pH value, and dissolved oxygen. The sensor's detection probe uses special membrane electrode technology, which has high sensitivity and selectivity for cyanide. The water quality monitoring sensor 42 is connected to the controller 50 via a waterproof cable, transmitting the monitoring data to the controller 50 in real time. The controller 50 then analyzes and processes the received monitoring data. When the monitoring data exceeds a preset value, the controller 50 controls the inlet component 10 to reduce the amount of wastewater input. The preset value is less than the specified discharge value, so adjustments can be made when the value slightly exceeds the preset value, ensuring that the discharged water always remains below the standard discharge value.

[0069] Usage process:

[0070] In use, the adsorption purification device is installed at the sewage outlet through the inlet pipe 11 and the pretreatment pipe 111. Sewage is then introduced into the adsorption assembly 20 through the pretreatment pipe 111 and the inlet pipe 111. During this process, the chemical reagents in the chemical reaction package 112 in the pretreatment pipe 111 react with the cyanide in the sewage before adsorption, performing a preliminary adsorption filtration. Subsequently, the cyanide in the sewage undergoes staged adsorption through the first adsorption cylinder 21, the second adsorption cylinder 22, and the third adsorption cylinder 23 on the adsorption assembly 20, achieving precise adsorption. The first adsorption cylinder 21 is filled with an activated carbon adsorbent layer 211, the second adsorption cylinder 22 is filled with an ion exchange resin adsorbent layer 221, and the third adsorption cylinder 23 is filled with a nano-titanium dioxide modified adsorbent layer 231, ensuring effective adsorption of cyanide. The cyanide in the water is adsorbed in stages, from largest to smallest, making the adsorption and purification more thorough. The purified water is then discharged through an outlet pipe. During the discharge process, a water quality monitoring sensor 42 monitors the cyanide content in the purified water. When the monitored value exceeds a preset value, the controller 50 controls the flow control valve 12 at the inlet pipe to adjust the opening and closing degree of the flow control valve 12, thereby controlling the water flow. This increases the contact time between the water flowing into the adsorption assembly 20 and each adsorption layer, providing sufficient reaction time and reducing the cyanide content in the discharged water. This keeps the cyanide content below the specified discharge value, thus solving the problem of the existing technology requiring multiple cycles for cyanide adsorption and reducing the amount of wastewater discharged.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cyanide-containing wastewater adsorption and purification device, characterized in that, The utility model relates to a multi-stage adsorption device for purifying cyanide-containing sewage, comprising: a liquid inlet assembly (10) in communication with a sewage outlet, the liquid inlet assembly (10) being used to control the flow of sewage; a plurality of adsorption assemblies (20) arranged on the liquid inlet assembly (10) and provided with adsorption cavities; a plurality of connecting pipes (30) arranged between the plurality of adsorption assemblies (20) and in communication with the adsorption cavities; a liquid outlet assembly (40) arranged at the end of the plurality of adsorption assemblies (20) away from the liquid inlet assembly (10), the liquid outlet assembly (40) being used to monitor the cyanide concentration of the outlet liquid; a controller (50) arranged on the liquid outlet assembly (40) and electrically connected with the liquid outlet assembly (40) and the liquid inlet assembly (10); wherein the plurality of adsorption assemblies (20) combine to form a multi-stage adsorption cavity to sequentially adsorb cyanide in the cyanide-containing sewage and purify the sewage, the liquid outlet assembly (40) monitors the purified sewage, discharges the purified sewage, and transmits the monitoring results to the controller (50), and the controller (50) controls the liquid inlet assembly (10) to adjust the amount of sewage entering according to the monitoring results.

2. A cyanide-containing wastewater adsorption and purification device according to claim 1, characterized in that, The liquid inlet assembly (10) comprises: a liquid inlet pipe (11) in communication with the sewage outlet; a flow control valve (12) arranged on the liquid inlet pipe (11) and electrically connected with the controller (50) to control the opening degree through the controller (50).

3. A cyanide-containing wastewater adsorption and purification device according to claim 2, characterized in that, The liquid inlet pipe (11) comprises: a pretreatment pipe (111) integrally arranged at one end of the liquid inlet pipe (11) and provided with a pretreatment cavity, the inner wall of the pretreatment cavity being provided with a plurality of reaction bag placement grooves along the edge; a chemical reaction bag (112) corresponding to the reaction bag placement grooves.

4. The cyanide-containing wastewater adsorption and purification device according to claim 1, characterized in that, The plurality of adsorption assemblies (20) comprise: a first adsorption cylinder (21) in communication with one end of the liquid inlet assembly (10) and provided with a first adsorption cavity; a second adsorption cylinder (22) in communication with the first adsorption cylinder (21) through the connecting pipe (30) and provided with a second adsorption cavity; a third adsorption cylinder (23) in communication with the second adsorption cylinder (22) through the connecting pipe (30) and provided with a third adsorption cavity; wherein the first adsorption cylinder (21), the second adsorption cylinder (22), and the third adsorption cylinder (23) combine to form a multi-stage adsorption structure.

5. A cyanide-containing wastewater adsorption and purification device according to claim 4, characterized in that, The plurality of adsorption assemblies (20) further comprise: an activated carbon adsorbent layer (211) filled in the first adsorption cavity; an ion exchange resin adsorbent layer (221) filled in the second adsorption cavity; A nano-titanium dioxide modified adsorbent layer (231) is filled in the third adsorption cavity.

6. A cyanide-containing wastewater adsorption and purification device according to claim 1, characterized in that, The liquid outlet assembly (40) comprises: A liquid outlet pipe (41) is arranged at one end of the plurality of adsorption assemblies (20) away from the liquid inlet assembly (10); A water quality monitoring sensor (42) is arranged on the liquid outlet pipe (41) and extends through to the inside of the liquid outlet pipe (41); The water quality monitoring sensor (42) is used to monitor the cyanide concentration value in the filtered water and is electrically connected to the controller (50) to transmit the value to the controller (50).

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