A buried treatment system for hazardous waste and its control method

Abstract

The present invention discloses a hazardous waste treatment technology, aiming to provide a pre-buried treatment system for hazardous waste with good reaction effect, strong practicability and high uniformity, as well as its control method. The key technical points are as follows: by setting a pre-buried unit and burying the pre-buried unit in a pit, a centralized treatment area for hazardous waste is formed, and a chemical reaction treatment method or a microbial decomposition treatment method is adopted. At the same time, an internal conveying mechanism is added to this application. Since the internal conveying mechanism includes several reaction chambers and internal conveyors arranged in the reaction chambers, the internal conveyors can rotate and stir the hazardous waste in the reaction chambers and stably output the treatment solution in real time. While the reaction is carried out, it also stirs the reactants in the reaction chambers, thereby improving the overall reaction rate and greatly enhancing the practicability. The present invention is applicable to the technical field of hazardous waste treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of hazardous waste treatment, and more specifically, to a pre-buried treatment system for hazardous waste and a control method thereof. Background Art

[0002] China's industrialization process has been accelerating continuously. Although this has promoted China's economic growth, during the industrial development, a lot of hazardous waste has also been generated, which has made the environmental pollution problem more serious. Therefore, in industrial production, the purification treatment of hazardous waste is essential. Nowadays, the concept of hazardous waste has exceeded the scope of the usually referred solid hazardous waste, and there are also many waste liquids that can pollute biological resources, water resources, land resources and the atmospheric environment, and even cause serious harm. In the prior art, the purification treatment of hazardous waste is relatively single, mainly focusing on the purification and disposal of solid hazardous waste, and rarely involves the comprehensive purification treatment of solid and liquid hazardous waste. Therefore, there is an urgent need for a purification treatment system that comprehensively treats solid and liquid hazardous waste.

[0003] For example, the patent number is CN201910159155.2, and the patent name is a rigid landfill system for hazardous waste and a hazardous waste transfer system, which adopts the landfill method. Although this method has no particularly great risk in the short term, in the long run, due to the large corrosivity of the landfill, it will affect the service life of the landfill structure and will also cause environmental pollution over time;

[0004] Moreover, for other traditional treatment systems, some are through chemical reactions and some are through the decomposition of microorganisms. However, the traditional structures cannot carry out effective and uniform reactions and decompositions, and the traditional reaction methods basically enter from one side, with poor uniformity. Therefore, in order to ensure the accelerated progress of reactions and decompositions, a structure that can form uniform stirring is needed to assist the progress of reactions and decompositions. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a pre-buried treatment system for hazardous waste and a control method thereof with good reaction effect, strong practicability and high uniformity.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A pre-buried treatment system for hazardous waste, including a pre-buried unit, the pre-buried unit is arranged in a pit, the pre-buried unit includes at least one pre-buried pool, the pre-buried pool has an upper opening and is surrounded by a bottom wall of the pre-buried pool and a side wall of the pre-buried pool extending upward from the bottom wall of the pre-buried pool;

[0007] A sealing unit, the sealing unit is adapted to cover the upper opening of the pre-buried pool when the pre-buried pool is filled with hazardous waste;

[0008] A processing unit, which is connected to the embedded pool and conveys a chemical reaction treatment agent or a microbial population solution to the embedded pool;

[0009] An inlet and outlet unit, which outputs hazardous waste; and for the processed material, first performs percolation, then precipitation, preliminarily separates the solid and liquid, and then discharges them after testing the pH values of the solid and liquid and meeting the discharge standards;

[0010] It further includes an internal conveying mechanism disposed in the embedded pool. The internal conveying mechanism includes a plurality of reaction chambers disposed in the embedded pool and internal conveyors disposed in the reaction chambers. The internal conveyors are connected to the conveying pipelines of the processing unit, and the internal conveyors are configured to convey the chemical reaction treatment agent and the microbial population solution into the reaction chambers.

[0011] The present invention is further configured as: the internal conveyor includes a rotating cylinder disposed in the reaction chamber, a plurality of outer through holes disposed on the rotating cylinder, a first solenoid valve disposed on the outer through holes, a rotating motor rotatably connected to the rotating cylinder, an internal pipeline disposed in the rotating cylinder and communicating with the conveying pipeline, an internal through hole disposed on the internal pipeline, and a second solenoid valve disposed on the internal through hole. The internal through hole and the outer through hole communicate with each other.

[0012] The present invention is further configured as: the internal conveyor further includes a thickness detector for detecting the thickness of the chemical reaction treatment agent and the microbial population solution attached to the surface of the output amount and a flow detector disposed in the internal pipeline. The aperture of the internal through hole is larger than the aperture of the outer through hole.

[0013] The present invention is further configured as: the bottom wall of the embedded pool includes a reinforced concrete bottom wall and a first anti-seepage layer covering the reinforced concrete bottom wall, and the side wall of the embedded pool includes a reinforced concrete side wall and a second anti-seepage layer covering the reinforced concrete side wall.

[0014] A control method applicable to the above-mentioned hazardous waste embedded treatment system further includes a controller. The controller includes a monitoring unit for real-time monitoring of the attached output amount thickness and real-time monitoring of the flow rate in the internal pipeline; a comparison unit for setting an optimal thickness value and an optimal flow rate value and comparing them with the electrical signals transmitted by the monitoring unit; a timing unit for timing at a certain thickness stage and a certain flow rate stage; a pH value detection unit electrically connected to a pH value detector and detecting the current pH value in the reaction chamber; and a control unit for controlling the conveying flow rate of the conveying pipeline and the rotation speed of the rotating motor, including the following steps: S1. Put the hazardous waste into each reaction chamber, and set the optimal thickness value on the rotating cylinder as H, the warning film thickness as H0, the optimal flow rate value in the internal pipeline as L, and the warning flow rate value in the internal pipeline as L0 through the controller;

[0015] S2. The thickness and flow rate values are monitored in real time by the monitoring unit. The monitored thickness value is Ht, the flow rate value is Lt, and the pH value detector detects the pH value in the reaction chamber after time t. The detected value is W. When the pH value is 7, it is in the optimal state.

[0016] S3. In the first time period, according to the content of hazardous waste in each reaction chamber, a matching and quantitative chemical reaction treatment agent or microbial population solution is output and transported through the inner pipeline, and the reaction duration is 30 min.

[0017] S4. In the first time period, when transporting the reaction solution, the output quantity needs to be strictly controlled. First, the reaction solution in the inner pipeline is transferred to the rotating cylinder, and then, due to the centrifugal force generated by the rotation of the rotating cylinder, the reaction solution in the cylinder is thrown out and enters the reaction chamber. The thickness detector monitors the thickness of the solution in the rotating cylinder in real time and records it as H1. When H1 is less than H0, the reaction solution needs to be continuously transported through the inner pipeline. Otherwise, the reaction solution continues to be output through the rotating cylinder.

[0018] S5. In the second time period, when the flow detector monitors that the flow rate value is less than L0, it is judged that the transportation of the reaction solution is approaching the end. After the output of the inner pipeline is completed, at this time, the thickness sensor on the rotating cylinder will monitor the current thickness value as H2 in real time. When the current thickness H2 is less than H0, the control unit controls the rotation speed of the rotating cylinder to decrease, and closes the outer through-hole through the first solenoid valve until the reaction is completed.

[0019] S6. In the third time period, the pH value detector detects after the reaction is completed. If the detected pH value is between 7 ± 0.5, the neutralization is completed. If the pH value exceeds the above range, the reaction solution needs to be continuously output. First, the content of the reaction solution to be output as a whole is controlled through the inner pipeline, and it is transported from the inner pipeline to the rotating cylinder. Then, the rotating cylinder rotates driven by the rotating motor. After reaching the preset rotation speed, the first solenoid valve opens the outer through-hole and outputs the reaction solution in the rotating cylinder.

[0020] S7. After the reaction ends, the pH value detector detects after the reaction is completed. If the detected pH value is between 7 ± 0.5, the neutralization is completed. If the pH value exceeds the above range, the operation returns to step S6.

[0021] S8. After reaching the emission standard, the reactants in the reaction chamber are discharged.

[0022] By adopting the above technical solutions, the beneficial effects are as follows: 1. In the present invention, by providing a pre-buried unit and burying it in the pit, a centralized treatment area for hazardous waste is formed. It also includes a sealing unit, a treatment unit, and an inlet and outlet unit. The sealing unit is to ensure that harmful gases are generated to form a relatively enclosed reaction environment. The treatment unit is provided to adopt chemical reaction treatment methods or microbial decomposition treatment methods for different hazardous wastes. At the same time, an internal conveying mechanism is added to this application. Since the internal conveying mechanism includes several reaction chambers and internal conveyors arranged in the reaction chambers, the internal conveyors can rotate and stir the hazardous waste in the reaction chambers and stably output the treatment solution in real time. While the reaction is taking place, it also stirs the reactants in the reaction chambers, thereby improving the overall reaction rate and greatly enhancing the practicability.

[0023] 2. In the present invention, the internal conveyor is set to include a rotating cylinder arranged in the reaction chamber and an internal pipe arranged in the rotating cylinder and connected to the conveying pipeline. The internal conveyor is set to include the cooperation between the rotating cylinder and the internal pipe. The internal pipe is the main output. Through several external through-holes arranged on the rotating cylinder, the first solenoid valve arranged on the external through-holes, the rotating motor rotatably connected to the rotating cylinder, the internal through-holes arranged on the internal pipe, and the second solenoid valve arranged on the internal through-holes, the internal through-holes and the external through-holes are interconnected, so that the reactants in the internal pipe can be transported to the reaction chamber, and thus the dosage of the reactants can be accurately controlled. Also, through the rotation of the rotating cylinder, the reactants in the reaction chamber can be stirred in all directions, forming a sufficient reaction effect, improving the reaction rate, greatly enhancing the practicability, and the structure is relatively simple.

[0024] 3. The internal conveyor also includes a thickness detector for detecting the thickness of the surface adhesion output amount of the chemical reaction treatment agent and the microbial population solution arranged on the internal pipe, and a flow detector arranged inside the internal pipe. The aperture of the internal through-hole is larger than that of the external through-hole. To ensure the stable and continuous transportation of the chemical reaction treatment agent and the microbial population solution, accurately control the amount of the reactants, and improve the decomposition or neutralization of the hazardous waste, so as to achieve a good treatment effect, with strong practicability and simple structure.

[0025] 4. In the control method of the present invention, by controlling the main output pipeline formed by the inner conveying pipeline, detecting the optimal flow value in the pipeline, and detecting the optimal thickness on the rotating cylinder in real time. Since the rotating cylinder is used to throw out the reactants by centrifugal force while stirring, and then react with the hazardous waste in the reaction chamber, and also can detect the pH value in real time, so as to continuously adjust the amount of the reactant in real time. By detecting the flow rate and the optimal thickness on the rotating cylinder, the quantitative output of the reactant is realized, and the overall practicability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic structural diagram of the embedding unit of an embodiment of a hazardous waste pre-embedding treatment system and its control method of the present invention.

[0027] Figure 2 FIG. is a schematic structural diagram of the inner conveyor of an embodiment of a hazardous waste pre-embedding treatment system and its control method of the present invention.

[0028] Figure 3 FIG. is a schematic cross-sectional structural diagram of the inner conveyor of an embodiment of a hazardous waste pre-embedding treatment system and its control method of the present invention.

[0029] Figure 4 FIG. is an enlarged schematic diagram of the structure at A in an embodiment of a hazardous waste pre-embedding treatment system and its control method of the present invention Figure 3 in the present invention.

[0030] Figure 5 FIG. is the flow Figure 1 .

[0031] Figure 6 FIG. is the flow Figure 2 .

[0032] Figure 7 FIG. is the flow Figure 3 .

[0033] In the figure, the reference numerals are: 1, embedding unit; 2, embedding pool; 20, first anti-seepage layer; 21, second anti-seepage layer; 3, sealing unit; 4, treatment unit; 40, conveying pipeline; 41, inner pipeline; 410, inner through hole; 411, second solenoid valve; 5, inlet and outlet unit; 6, inner conveying mechanism; 60, reaction chamber; 61, inner conveyor; 62, rotating cylinder; 620, outer through hole; 621, first solenoid valve; 63, rotating motor; 7, thickness detector; 8, flow detector. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] Reference Figures 1 to 7 The embodiments of a pre-buried treatment system for hazardous waste and its control method according to the present invention will be further described.

[0035] For ease of description, spatial relative terms such as "upper", "lower", "left", "right", etc. are used in the embodiments to describe the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "below" other elements or features will be positioned "above" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0036] Moreover, relational terms such as "first" and "second" are only used to distinguish one component with the same name from another, and do not necessarily require or imply any such actual relationship or order between these components.

[0037] A pre-buried treatment system for hazardous waste includes a pre-buried unit 1, the pre-buried unit 1 is arranged in a pit, the pre-buried unit 1 includes at least one pre-buried pool 2, the pre-buried pool 2 has an upper opening and is surrounded by the bottom wall of the pre-buried pool 2 and the side wall of the pre-buried pool 2 extending upward from the bottom wall of the pre-buried pool 2;

[0038] A sealing unit 3, the sealing unit 3 is adapted to cover the upper opening of the pre-buried pool 2 when the pre-buried pool 2 is filled with hazardous waste;

[0039] A treatment unit 4, communicating with the pre-buried pool 2 and delivering a chemical reaction treatment agent or a microbial population solution to the pre-buried pool 2;

[0040] An inlet and outlet unit 5, outputting hazardous waste; and for the treated product, first performing percolation, then precipitation, preliminarily separating the solid and liquid, and then, after testing the pH of the solid and liquid and meeting the discharge standard, discharging them;

[0041] It also includes an internal conveying mechanism 6 disposed in the embedded pool 2. The internal conveying mechanism 6 includes a plurality of reaction chambers 60 disposed in the embedded pool 2 and an internal conveyor 61 disposed in the reaction chamber 60. The internal conveyor 61 is communicated with the conveying pipeline 40 of the processing unit 4. The internal conveyor 61 is configured to convey the chemical reaction treatment agent and the microbial population solution into the reaction chamber 60. In the present invention, by providing the embedded unit 1 and burying the embedded unit 1 into the pit, a centralized treatment area for hazardous waste is formed. And it also includes a sealing unit 3, a processing unit 4 and an inlet and outlet unit 5. Among them, the sealing unit 3 is to ensure the generation of harmful gases and form a relatively closed reaction environment. Moreover, the setting of the processing unit 4 is to adopt a chemical reaction treatment method or a microbial decomposition treatment method for different hazardous wastes. At the same time, the present application also adds an internal conveying mechanism 6. Because the internal conveying mechanism 6 includes a plurality of reaction chambers 60 and an internal conveyor 61 disposed in the reaction chamber 60, it can rotate and stir the hazardous waste in the reaction chamber 60 through the internal conveyor 61, and stably output the treatment solution in real time. While the reaction is carried out, it also stirs the reactants in the reaction chamber 60, thereby improving the overall reaction rate and greatly enhancing the practicability.

[0042] Preferably, the internal conveyor 61 includes a rotating cylinder 62 disposed in the reaction chamber 60, a plurality of external through holes 620 disposed on the rotating cylinder 62, a first solenoid valve 621 disposed on the external through hole 620, a rotating motor 63 rotatably connected to the rotating cylinder 62, an internal pipe 41 disposed in the rotating cylinder 62 and communicated with the conveying pipeline 40, an internal through hole 410 disposed on the internal pipe 41, and a second solenoid valve 411 disposed on the internal through hole 410. The internal through hole 410 and the external through hole 620 are communicated with each other. In the present invention, by setting the internal conveyor 61 to include a rotating cylinder 62 disposed in the reaction chamber 60 and an internal pipe 41 disposed in the rotating cylinder 62 and communicated with the conveying pipeline 40, the cooperation between the rotating cylinder 62 and the internal pipe 41 is set for the internal conveyor 61. The internal pipe 41 is the main output. And through a plurality of external through holes 620 disposed on the rotating cylinder 62, a first solenoid valve 621 disposed on the external through hole 620, a rotating motor 63 rotatably connected to the rotating cylinder 62, an internal through hole 410 disposed on the internal pipe 41, and a second solenoid valve 411 disposed on the internal through hole 410, with the internal through hole 410 and the external through hole 620 being communicated with each other, the reaction agent in the internal pipe 41 can be conveyed to the reaction chamber 60, thereby enabling accurate control of the dosage of the reaction agent. And also through the rotation of the rotating cylinder 62, the reactants in the reaction chamber 60 can be stirred in all directions, a sufficient reaction effect can be formed, the reaction rate can be increased, the practicability is greatly improved, and the structure is relatively simple.

[0043] Preferably, the inner conveyor 61 further includes a thickness detector 7 for detecting the thickness of the surface attachment output amount of the chemical reaction treatment agent and the microbial population solution provided on the inner pipe 41, and a flow detector 8 provided in the inner pipe 41. The aperture of the inner through hole 410 is larger than that of the outer through hole 620. Further, by setting the inner conveyor 61 to further include the thickness detector 7 for detecting the thickness of the surface attachment output amount of the chemical reaction treatment agent and the microbial population solution provided on the inner pipe 41, and the flow detector 8 provided in the inner pipe 41, and the aperture of the inner through hole 410 is larger than that of the outer through hole 620, in order to ensure that the chemical reaction treatment agent and the microbial population solution can be stably and continuously transported, accurately control the amount of the reactant, improve the decomposition or neutralization of hazardous waste, so as to achieve good treatment effects, with strong practicability and simple structure.

[0044] Preferably, the bottom wall of the embedded pool 2 includes a reinforced concrete bottom wall and a first anti-seepage layer 20 covering the reinforced concrete bottom wall, and the side wall of the embedded pool 2 includes a reinforced concrete side wall and a second anti-seepage layer 21 covering the reinforced concrete side wall. By providing the two anti-seepage layers, a strong protection is formed on the peripheral side of the inner wall of the embedded pool 2, thereby improving the structural stability of the embedded pool 2 and also providing sufficient protection for the soil, with strong practicability and simple structure.

[0045] A control method applicable to the above-mentioned hazardous waste embedded treatment system further includes a controller. The controller includes a monitoring unit for real-time monitoring of the thickness of the attachment output amount and the flow rate in the inner pipe 41; a comparison unit for setting the optimal thickness value and the optimal flow rate value and comparing them with the electrical signals transmitted by the monitoring unit; a timing unit for timing at a certain thickness stage and a certain flow rate stage; a pH value detection unit electrically connected to the pH value detector and detecting the current pH value in the reaction chamber 60; and a control unit for controlling the flow rate of the conveying pipe 40 and the rotation speed of the rotating motor 63, including the following steps: S1. Put the hazardous waste into each reaction chamber 60, and set the optimal thickness value on the rotating cylinder 62 as H, the warning film thickness as H0, the optimal flow rate value in the inner pipe 41 as L, and the warning flow rate value in the inner pipe 41 as L0 through the controller;

[0046] S2. The monitoring unit real-time monitors the thickness and flow rate values, and the monitored thickness value is Ht, the flow rate value is Lt. The pH value detector detects the pH value in the reaction chamber 60 after t time, and the detected value is W. When the pH value is 7, it is in the optimal state;

[0047] S3. During the first time period, according to the content of hazardous waste in each reaction chamber 60, output a matching and quantified chemical reaction treatment agent or microbial population solution, and transport it through the inner pipeline 41, with a reaction duration of 30 minutes.

[0048] S4. During the first time period, when transporting the reaction solution, it is necessary to strictly control the output volume. After first transferring the reaction solution in the inner pipeline 41 to the rotating cylinder 62, then, through the centrifugal force generated by the rotation of the rotating cylinder 62, the reaction solution in the cylinder is thrown out and enters the reaction chamber 60. The thickness detector 7 monitors the thickness of the solution in the rotating cylinder 62 in real time and records it as H1. When H1 is less than H0, it is necessary to continue transporting the reaction solution through the inner pipeline 41. Otherwise, continue to output the reaction solution through the rotating cylinder 62.

[0049] S5. During the second time period, when the flow detector 8 detects that the flow value is less than L0, it is determined that the transportation of the reaction solution is approaching the end. After the output of the inner pipeline 41 is completed, at this time, the thickness sensor on the rotating cylinder 62 will monitor the current thickness value as H2 in real time. When the value of the current thickness H2 is less than H0, the control unit controls to reduce the rotation speed of the rotating cylinder 62, and closes the outer through-hole 620 through the first solenoid valve 621, and waits until the reaction is completed.

[0050] S6. During the third time period, the pH value detector detects after the reaction is completed. If the detected pH value is between 7 ± 0.5, the neutralization is completed. If the pH value exceeds the above range, it is necessary to continue outputting the reaction solution. First, control the content of the reaction solution that needs to be output as a whole through the inner pipeline 41, transport it to the rotating cylinder 62 through the inner pipeline 41, and then the rotating cylinder 62 rotates driven by the rotating motor 63. After reaching the preset rotation speed, the first solenoid valve 621 opens the outer through-hole 620, and outputs the reaction solution in the rotating cylinder 62.

[0051] S7. After the reaction ends, the pH value detector detects after the reaction is completed. If the detected pH value is between 7 ± 0.5, the neutralization is completed. If the pH value exceeds the above range, continue to return to step S6 for operation.

[0052] S8. After reaching the emission standard, discharge the reactants in the reaction chamber 60.

[0053] In the control method of the present invention, by controlling the main output pipeline formed by the inner conveying pipeline 40, detecting the optimal flow value in the pipeline, and detecting the optimal thickness on the rotating cylinder 62 in real time. Since the rotating cylinder 62 is used to throw out the reactants by centrifugal force while stirring, and then react with the hazardous waste in the reaction chamber 60, and the amount of the reactant can also be adjusted in real time by detecting the pH value in real time. By detecting the flow rate and the optimal thickness on the rotating cylinder 62, the quantitative output of the reactant is realized, and the overall practicability is improved.

[0054] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A control method for a hazardous waste pre-buried treatment system, characterized in that: The invention comprises a pre-buried unit (1), the pre-buried unit (1) being arranged in a pit, the pre-buried unit (1) comprising at least one pre-buried pool (2), the pre-buried pool (2) being open at the top and being surrounded by a pre-buried pool (2) bottom wall and a pre-buried pool (2) side wall extending upward from the pre-buried pool (2) bottom wall; A sealing unit (3), wherein the sealing unit (3) is adapted to seal the upper opening of the pre-buried pool (2) when the pre-buried pool (2) is filled with hazardous waste; The treatment unit (4) is connected to the pre-buried pool (2) and delivers a chemical reaction treatment agent or a microbial group solution to the pre-buried pool (2); Import and export unit (5), exporting hazardous waste; The treated material is first filtered and then precipitated to initially separate the solids and liquids, and then the solids and liquids are tested for pH and alkalinity, and then discharged only after they meet the discharge standards; The system further comprises an internal transport mechanism (6) disposed in the pre-buried pool (2), the internal transport mechanism (6) comprising a plurality of reaction chambers (60) disposed in the pre-buried pool (2) and an internal transport device (61) disposed in the reaction chamber (60), the internal transport device (61) being connected to a transport pipeline (40) of the processing unit (4), and the internal transport device (61) being configured to transport a chemical reaction treatment agent and a microbial group solution into the reaction chamber (60); The device also includes a controller, which includes a monitoring unit for real-time monitoring of the thickness of the attached output and the flow rate in the inner pipe (41); a comparison unit for setting an optimal thickness value and an optimal flow rate value, and comparing them with the electrical signal transmitted by the monitoring unit; and a timing unit for timing a certain thickness stage and a certain flow rate stage; A pH value detection unit is electrically connected to the pH value detector and detects the current pH value in the reaction chamber (60); and a control unit is used to control the delivery flow of the delivery pipeline (40) and the rotation speed of the rotating motor (63), comprising the following steps: S1, putting hazardous waste into each reaction chamber (60), and setting the optimal thickness value on the rotating cylinder (62) to H, setting the warning film thickness to H0, setting the optimal flow value in the inner pipeline (41) to L, and setting the warning flow value in the inner pipeline (41) to L0 through the controller; S2, the thickness and flow value are monitored in real time by the monitoring unit, and the monitored thickness value is Ht, the flow value is Lt, and the pH value detector detects the pH value in the reaction chamber (60) after t time, and the detection value is W. When the pH value is 7, it is in the best state; S3. In the first time period, according to the content of hazardous waste in each reaction chamber (60), a chemical reaction treatment agent or a microbial solution matching and quantitatively matched with the content of hazardous waste is output and transported through the inner pipeline (41), and the reaction time is 30 minutes; S4. During the first time period, when the reaction solution is transported, the output volume needs to be strictly controlled. The reaction solution in the inner pipe (41) is first transferred to the rotating cylinder (62), and then the reaction solution in the cylinder is thrown out and enters the reaction chamber (60) by the centrifugal force generated by the rotation of the rotating cylinder (62). The thickness detector (7) monitors the thickness of the solution in the rotating cylinder (62) in real time and records it as H1. When H1 is less than H0, the reaction solution needs to be continuously transported through the inner pipe (41). Otherwise, the reaction solution continues to be output through the rotating cylinder (62). S5. In the second time period, when the flow detector (8) detects that the flow value is less than L0, it is determined that the reaction solution delivery is nearing the end. After the output of the inner pipe (41) is completed, the thickness sensor on the rotating cylinder (62) will monitor the current thickness value H2 in real time. When the current thickness H2 is less than H0, the control unit controls to reduce the rotation speed of the rotating cylinder (62) and closes the outer through hole (620) through the first electromagnetic valve (621) until the reaction is completed. S6. During the third time period, the pH detector performs detection after the reaction is completed. If the detected pH value is between 7±0.5, neutralization is completed. If the pH value exceeds the above range, the reaction solution needs to be continuously output. The content of the reaction solution to be output as a whole is first controlled through the inner pipe (41). After the reaction solution is transported to the rotating cylinder (62) through the inner pipe (41), the rotating cylinder (62) is rotated under the drive of the rotating motor (63). After reaching a preset speed, the first solenoid valve (621) opens the outer through hole (620) and outputs the reaction solution in the rotating cylinder (62); S7, after the reaction is completed, the pH detector performs detection after the reaction is completed. If the detected pH value is between 7±0.5, the neutralization is completed. If the pH value exceeds the above range, the operation returns to step S6; S8. After reaching the discharge standard, the reactants in the reaction chamber (60) are discharged.

2. The control method of a hazardous waste pre-buried treatment system according to claim 1 is characterized in that: The inner conveyor (61) comprises a rotating cylinder (62) arranged in the reaction chamber (60), a plurality of external through holes (620) arranged on the rotating cylinder (62), a first solenoid valve (621) arranged on the external through hole (620), a rotating motor (63) rotatably connected to the rotating cylinder (62), an inner pipe (41) arranged in the rotating cylinder (62) and connected to the conveying pipe (40), an inner through hole (410) arranged on the inner pipe (41), and a second solenoid valve (411) arranged on the inner through hole (410), wherein the inner through hole (410) and the external through hole (620) are connected to each other.

3. The control method of a hazardous waste pre-buried treatment system according to claim 2 is characterized in that: The inner conveyor (61) further comprises a thickness detector (7) for measuring the thickness of the chemical reaction treatment agent and the microbial community solution attached to the surface of the rotating cylinder (62), and a flow detector (8) arranged in the inner pipe (41), wherein the aperture of the inner through hole (410) is larger than the aperture of the outer through hole (620).

4. The control method of a hazardous waste pre-buried treatment system according to claim 1 is characterized in that: The bottom wall of the pre-buried pool (2) comprises a reinforced concrete bottom wall and a first anti-seepage layer (20) covering the reinforced concrete bottom wall, and the side wall of the pre-buried pool (2) comprises a reinforced concrete side wall and a second anti-seepage layer (21) covering the reinforced concrete side wall.

Images