Acrylonitrile sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, in particular to an acrylonitrile sewage treatment device which comprises a microorganism purification box and two discharge and suction mechanisms, the discharge and suction mechanisms are symmetrically arranged on the inner walls of the two sides of the microorganism purification box in the width direction, and each discharge and suction mechanism comprises a cavity plate fixedly connected to the inner wall of the microorganism purification box. Through a hollow cavity plate, a separation block and an air separation assembly in the discharge and suction mechanism, air can be injected into and sucked into the microorganism purification box, so that a corresponding purification environment is provided for sewage purification by aerobic microorganisms or anaerobic microorganisms, and the sewage purification efficiency is improved when the air is injected. The exposed area and the water soaking area can inject air into the microorganism purification box at the same time to provide sufficient oxygen for aerobic microorganism purification sewage and assist the aerobic microorganism purification box to efficiently decompose pollutants in the sewage, and when air is sucked, the air separation assembly separates the exposed area from the water soaking area, so that suction airflow is only discharged from the exposed area, the sewage is prevented from flowing out along with the cavity plate, and the service life of the sewage is prolonged. Meanwhile, suction airflow discharged by the soaking area is prevented from interfering the anaerobic environment in the box.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to an acrylonitrile sewage treatment device. Background Art

[0002] An acrylonitrile wastewater treatment plant is a device for treating toxic and hazardous wastewater containing acrylonitrile, acetonitrile, hydrocyanic acid, and other substances generated during the acrylonitrile production process. It generally consists of a regulating tank, flotation device, and hydrolysis and acidification tank in the pretreatment unit; aerobic and anaerobic treatment devices in the microbial treatment unit; and coagulation, sedimentation, filtration, and advanced oxidation devices in the deep treatment unit. Through the synergistic effect of each unit, it achieves functions such as regulating the water quality and quantity of the wastewater, solid-liquid separation, improving biodegradability, degrading organic matter, denitrification, and deep removal of residual pollutants, thereby achieving the goals of purifying water quality, protecting the environment, recycling resources, and ensuring the sustainability of acrylonitrile production.

[0003] In the microbial treatment unit of existing acrylonitrile wastewater treatment equipment, aerobic microbial purification, anaerobic microbial purification, or a combination of the two is selected for acrylonitrile wastewater purification, mainly based on the degree of contamination of the acrylonitrile wastewater. When the organic matter concentration in acrylonitrile wastewater is low, the ammonia nitrogen concentration is high, and the toxic substances are low, aerobic microbial purification is selected; when the organic matter concentration in acrylonitrile wastewater is high, nitrate nitrogen, and toxic substances are high, anaerobic microbial purification is selected; and when the organic matter concentration in the wastewater is high and it contains high ammonia nitrogen and nitrate nitrogen, aerobic microbial purification and anaerobic microbial purification are selected in sequence. Since the environments for aerobic microorganisms and anaerobic microorganisms to purify sewage are different, the existing technology is to set up two sewage pools for aerobic microorganisms and anaerobic microorganisms to purify sewage respectively. When purifying sewage, aerobic microorganisms and anaerobic microorganisms are directly put into the sewage pool to purify the sewage, resulting in: 1. When aerobic microorganisms or anaerobic microorganisms are used alone to purify sewage, the purified water will contain aerobic microorganisms or anaerobic microorganisms, which will cause the purified water to be discharged into the natural environment, causing secondary pollution to the natural environment. 2. When aerobic microorganisms or anaerobic microorganisms are required to participate in sewage purification, since aerobic microorganisms or anaerobic microorganisms are in two separate environments, they need to be switched between the two environments, and aerobic microorganisms or anaerobic microorganisms are directly put into the corresponding sewage, causing the sewage purified in the aerobic pool to be transferred to the anaerobic pool for purification. The sewage contains aerobic microorganisms, and the aerobic microorganisms enter the anaerobic environment. Their activity is reduced or even killed because they cannot adapt to the anaerobic conditions, and the original microbial community structure in the anaerobic pool is broken, resulting in a reduction in the purification effect of anaerobic microorganisms. Summary of the Invention

[0004] In view of the above shortcomings of the prior art, the present invention provides an acrylonitrile wastewater treatment device, which can effectively solve the problem of the prior art that when pollutants in sewage require the use of aerobic microorganisms and anaerobic microorganisms at the same time, switching between the two environments is required.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides an acrylonitrile wastewater treatment device, comprising: Microbial purification box, A suction mechanism having two inner walls symmetrically disposed on both sides of the width direction of the microbial purification box, the suction mechanism comprising a cavity plate fixedly connected to the inner wall of the microbial purification box, a partition block disposed at an upper position within the cavity plate, a plurality of air-trapping components disposed in a linear array within the partition block, the partition block separating the upper and lower portions of the cavity plate into an exposed area and a submerged area; A microorganism storage mechanism, comprising an aerobic component and an anaerobic component symmetrically arranged on both sides of the length direction of the microorganism purification box, wherein microorganism attachment components are arranged inside the aerobic component and the anaerobic component; The nutrient solution storage mechanism has two nutrient solution storage mechanisms and is respectively arranged on the upper end surfaces of the aerobic component and the anaerobic component.

[0006] Preferably, the upper end face of the microbial purification box is fixedly connected to a dual-purpose exhaust and suction fan, and the dual-purpose exhaust and suction fan is electrically connected to a controller, the output end of the dual-purpose exhaust and suction fan is symmetrically fixedly connected to two air pipes, the upper end face of the microbial purification box is fixedly connected to a one-way valve, solenoid valves are provided on both sides of the width direction of the microbial purification box, the solenoid valves are electrically connected to the controller, the inner bottom of the microbial purification box is fixedly connected to a porous box, the output ends of the solenoid valves on both sides are connected to the two sides of the porous box through pipes passing through the microbial purification box, a slide is fixedly connected to the width direction of the upper end face of the porous box, and the two ends of the slide extend into the aerobic component and the anaerobic component respectively, and connecting ports are opened on both sides of the length direction of the microbial purification box.

[0007] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: 1. Through the hollow cavity plate, partition block and air barrier component in the suction and discharge mechanism, air can be injected and sucked into the microbial purification box, thereby providing a corresponding purification environment for aerobic microorganisms or anaerobic microorganisms to purify sewage. Among them, the cavity plate forms an exposed area and a submerged area through the partition block and the air barrier component, and the submerged area is located in the sewage and the exposed area is located above the sewage surface. The air barrier component can be used to inject air into the microbial purification box, and when the air in the microbial purification box is sucked, the air barrier can be used to inject air into the microbial purification box. The component will cut off the connection between the empty area and the submerged area, so that the submerged area cannot discharge the suction airflow, and the suction airflow can only be discharged from the empty area. Then, when injecting air, the empty area and the submerged area can simultaneously inject air into the microbial purification box to provide sufficient oxygen for aerobic microorganisms to purify sewage, helping them to efficiently decompose pollutants in sewage. When absorbing air, the air isolation component cuts off the connection between the empty area and the submerged area, so that the suction airflow is only discharged from the empty area, preventing sewage from flowing out along the cavity plate, and preventing the suction airflow discharged from the submerged area from interfering with the anaerobic environment in the box.

[0008] 2. The aerobic components, anaerobic components, and microbial attachment components in the microbial storage mechanism can limit the number and location of aerobic or anaerobic microorganisms put into the sewage, thereby realizing the input of corresponding aerobic or anaerobic microorganisms according to the degree of sewage pollution. Among them, the aerobic components and anaerobic components are used alternately or separately according to the sewage pollutants to implement different purification methods according to the type of sewage pollutants, thereby avoiding waste of resources. When the microbial attachment components are stored in the aerobic components and anaerobic components, the aerobic components and anaerobic components can provide a living environment for the corresponding aerobic or anaerobic microorganisms attached to the microbial attachment components, promote the reproduction of aerobic and anaerobic microorganisms, and enable aerobic and anaerobic microorganisms to maintain a good physiological state and maintain their efficient metabolic activities, thereby accelerating the decomposition and conversion of pollutants in the sewage. In addition, the sufficient number of microorganisms and active microbial activity also make the sewage purification process more continuous and efficient, reducing the purification time.

[0009] 3. The nutrient solution tank and nutrient bottle in the nutrient solution storage mechanism can provide the aerobic and anaerobic microorganisms in the aerobic and anaerobic components with the nutrients they need for growth and reproduction, further promoting the reproduction of aerobic and anaerobic microorganisms, allowing their number to grow rapidly, and effectively improving the ability to decompose and transform pollutants in sewage, thereby improving sewage purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0011] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 It is a schematic structural diagram of the overall side of the present invention; Figure 3 This is a schematic diagram of the internal structure of the microbial purification box of the present invention; Figure 4 This is a schematic diagram of the overall structure of the microbial purification box of the present invention; Figure 5 Schematic diagram of the internal structure of the suction and exhaust mechanism of the present invention; Figure 6 It is a structural schematic diagram of the separator block of the present invention; Figure 7 Schematic diagram of the structure of the air isolation assembly of the present invention; Figure 8 It is a structural schematic diagram of the aerobic storage box of the present invention; Figure 9 This is a schematic structural diagram of the bottom portion of the microorganism storage mechanism of the present invention; Figure 10 This is a schematic diagram of the internal structure of the aerobic storage box of the present invention; Figure 11 This is a schematic structural diagram of the microorganism attachment assembly of the present invention; Figure 12 This is a schematic structural diagram of the anaerobic storage box of the present invention; Figure 13 Schematic diagram of the internal structure of the anaerobic component of the present invention.

[0012] Figure numerals: 1. microbial purification box; 11. solenoid valve; 12. exhaust and suction fan; 13. air pipe; 14. porous box; 15. slide; 16. lifter; 17. gate; 18. microbial sensor; 19. two-position three-way valve; 110. drainage block; 2. exhaust and suction mechanism; 21. cavity plate; 22. diverter pipe; 23. first air hole; 24. partition block; 241. connecting hole; 242. cross fixing rod; 243. elastic rope; 25. second air hole; 26. air barrier assembly; 261. ventilation box; 262. exhaust hole; 263. check valve; 264. fixing rod; 265. gas hood; 3. microbial storage mechanism; 31. aerobic assembly; 311. aerobic storage box; 312 , suction fan; 313, air outlet; 314, air supply block; 315, heating fill light; 316, first suction and discharge block; 32, first diversion block; 321, connecting pipe; 33, first water pump; 331, first liquid guide tube; 332, first infusion tube; 34, microorganism attachment component; 341, fixing frame; 342, microorganism attachment rack; 343, electric slider; 344, distance limiting seat; 35, anaerobic component; 351, anaerobic storage box; 352, cooling rod; 353, second suction and discharge block; 36, second diversion block; 37, second water pump; 371, second liquid guide tube; 372, second infusion tube; 4, nutrient solution storage mechanism; 41, nutrient solution tank; 42, nutrient bottle; 43, connecting pipe. DETAILED DESCRIPTION

[0013] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0014] The present invention will be further described below with reference to the embodiments.

[0015] Example: Refer to Figures 1 to 13 , an acrylonitrile wastewater treatment device, comprising: Microbial purification box 1, The suction mechanism 2 has two inner walls symmetrically arranged on both sides of the width direction of the microbial purification box 1. The suction mechanism 2 includes a cavity plate 21 fixedly connected to the inner wall of the microbial purification box 1. A partition block 24 is provided at the upper position inside the cavity plate 21. A plurality of air-trapping components 26 are arranged in a linear array within the partition block 24. The partition block 24 separates the cavity plate 21 into an open area and a submerged area. The microorganism storage mechanism 3 includes an aerobic component 31 and an anaerobic component 35 symmetrically arranged on both sides of the length direction of the microorganism purification box 1. The aerobic component 31 and the anaerobic component 35 are both provided with a microorganism attachment component 34; The nutrient solution storage mechanism 4 has two nutrient solution storage mechanisms 4 and is respectively disposed on the upper end surfaces of the aerobic component 31 and the anaerobic component 35 .

[0016] The hollow cavity plate 21 in the exhaust and suction mechanism 2 can be used to input and absorb air into the microbial purification box 1, thereby changing the internal environment of the microbial purification box 1 to provide a corresponding purification environment for the subsequent corresponding aerobic microorganisms and anaerobic microorganisms to purify sewage. The partition block 24 can divide the cavity plate 21 into an open area and a submerged area. When the air is input into the microbial purification box 1 by using the air barrier component 26, the open area and the submerged area can simultaneously discharge air to replenish oxygen for the microbial purification box 1, thereby providing an environment for aerobic microorganisms to purify sewage. When the air barrier component 26 absorbs air into the microbial purification box 1, the air barrier component 26 will block the connection between the open area and the submerged area, thereby allowing the suction airflow to flow out only from the open area. The microbial attachment component 34 located in the aerobic component 31 and the anaerobic component 35 is attached with corresponding aerobic microorganisms or anaerobic microorganisms, and provides a corresponding environment for the survival and reproduction of aerobic microorganisms or anaerobic microorganisms. The nutrient solution storage mechanism 4 can provide nutrients for aerobic microorganisms or anaerobic microorganisms.

[0017] Reference Figures 1 to 4 The upper end surface of the microbial purification box 1 is fixedly connected to a dual-purpose exhaust and suction fan 12, and the dual-purpose exhaust and suction fan 12 is electrically connected to a controller. The output ends of the dual-purpose exhaust and suction fan 12 are symmetrically fixedly connected to two air pipes 13. The upper end surface of the microbial purification box 1 is fixedly connected to a one-way valve. Solenoid valves 11 are provided on both sides of the width direction of the microbial purification box 1. The solenoid valves 11 are electrically connected to the controller. The inner bottom of the microbial purification box 1 is fixedly connected to a porous box 14. The output ends of the solenoid valves 11 on both sides are connected to the two sides of the porous box 14 through pipes penetrating the microbial purification box 1. A slide 15 is fixedly connected to the width direction of the upper end surface of the porous box 14, and the two ends of the slide 15 extend into the aerobic component 31 and the anaerobic component 35 respectively. Connecting ports are opened on both sides of the length direction of the microbial purification box 1.

[0018] The forward and reverse rotation of the exhaust and suction dual-purpose fan 12 can be used to deliver air to the cavity plate 21 or absorb the air in the cavity plate 21, and the one-way valve will be closed when absorbing air and will be opened when delivering air. The solenoid valves 11 on both sides are used to control the closure when the sewage is delivered to the microbial purification box 1, thereby making the microbial purification box 1 in a sealed environment when combining with sewage, and the slide 15 is conducive to the subsequent microbial attachment components entering the microbial purification box 1.

[0019] Reference Figures 3 and 4 , a lifter 16 is fixedly connected to both sides of the microbial purification box 1 and above the communicating port, the lifter 16 is electrically connected to the controller, a gate 17 is slidably connected in the communicating port, the lifting end of the lifter 16 is fixedly connected to the gate 17, a microbial sensor 18 is fixedly connected to the inner wall of the microbial purification box 1, the microbial sensor 18 corresponds to the position of the partition block 24, a two-position three-way valve 19 is fixedly connected to both sides of the microbial purification box 1 corresponding to the lifter 16, and the two-position three-way valve 19 is electrically connected to the controller, a drainage block 110 is fixedly connected to both sides of the microbial purification box 1, and the drainage block 110 corresponds to the two-position three-way valve 19, and the output end of the two-position three-way valve 19 is connected to the drainage block 110 through a pipeline penetrating the microbial purification box 1.

[0020] The lifter 16 can be used to open the gate plate 17 corresponding to the aerobic component 31 or the anaerobic component 35 according to the type of sewage pollutants detected, so that the aerobic component 31 or the anaerobic component 35 is connected to the microbial purification box 1 through the connecting port, so that the aerobic microorganisms and anaerobic microorganisms attached to the corresponding microbial attachment components in the aerobic component 31 or the anaerobic component 35 can enter the microbial purification box 1, and the microbial sensor 18 is used to detect the type of impurities in the sewage to determine whether to use aerobic microorganisms for purification, anaerobic microorganisms for purification, or to use aerobic microorganisms and anaerobic microorganisms for purification in sequence.

[0021] Reference Figure 2 、 Figures 4 to 7 A plurality of first air holes 23 and a plurality of second air holes 25 are formed in a rectangular array on a side of the cavity plate 21 away from the microbial purification box 1. The first air holes 23 and the second air holes 25 correspond to the positions of the exposed area and the submerged area, respectively. An inlet and outlet diverter pipe 22 is provided on the upper end surface of the cavity plate 21. The multiple water outlet ends of the diverter pipe 22 are connected to the cavity plate 21, and the water inlet end of the diverter pipe 22 is connected to the end of the air pipe 13 away from the exhaust and suction dual-purpose fan 12. A plurality of connecting holes 241 are formed in a linear array within the partition block 24. A cross fixing rod 242 is fixedly connected to the inner wall of the connecting hole 241. The air barrier assembly 26 corresponds to the connecting hole 241 and is located below the cross fixing rod 242. An elastic rope 243 is fixedly connected to the center position of the bottom of the cross fixing rod 242.

[0022] The air-trapping assembly 26 includes a ventilation box 261 that is slidably connected to the inner wall of the connecting hole 241. A plurality of exhaust holes 262 are provided in a rectangular array around the ventilation box 261. A check valve 263 is installed inside each exhaust hole 262. The lower end of the elastic rope 243 is fixedly connected to the inner bottom of the ventilation box 261. A plurality of fixed rods 264 are fixedly connected to the inner bottom of the ventilation box 261 with the elastic rope 243 as the center. The linear array of the rod bodies of the fixed rods 264 is fixedly connected to the gas collecting hood 265, and the opening of the gas collecting hood 265 is set upward.

[0023] The cross-bars 242 and elastic cords 243 in the divider block 24 provide tension for the air trap assembly 26, allowing it to return to its initial position when the airflow ceases. When the dual-purpose exhaust and suction fan 12 delivers air into the cavity plate 21, the air collecting hood 265 and the air box 261 block the airflow, pushing the air box 261 downward. Due to the tension provided by the elastic cords 243, as the airflow increases, the elastic cords 243 extend, exposing more exhaust holes 262 to the connecting holes 241, and increasing the amount of air delivered to the submerged area.

[0024] Reference Figures 8 to 10 The aerobic component 31 includes an aerobic storage box 311 fixedly connected to the side of the microbial purification box 1. The aerobic storage box 311 is connected to the connecting port on one side of the microbial purification box 1. The part of the slide 15 extending to the aerobic component 31 is fixedly connected to its inner bottom. The other side of the aerobic storage box 311 is fixedly connected to an air suction fan 312. The air suction fan 312 is electrically connected to the controller. A plurality of air outlet holes 313 are provided in a rectangular array at the edge position of the upper end surface of the aerobic storage box 311. The inner wall of the aerobic storage box 311 is fixedly connected to an air supply block 314 corresponding to the air suction fan 312. The air suction fan 312 is connected to the air supply block 314 through a pipe. The inner wall of the aerobic storage box 311 is symmetrically fixed with a heating fill light 315 with the air supply block 314 as the center. The inner bottom of the aerobic storage box 311 is fixedly connected to a first suction and exhaust block 316.

[0025] The aerobic storage box 311 in the aerobic component 31 can store the corresponding microorganism attachment component 34, and the aerobic storage box 311 stores liquid that is conducive to the growth of aerobic microorganisms. The suction fan 312 can provide oxygen to the aerobic microorganisms attached to the microorganism attachment component 34 when the microorganism attachment component 34 is stored in the aerobic storage box 311. The air outlet 313 is used to realize the circulation of air in the aerobic storage box 311.

[0026] Reference Figures 9 and 10The bottom of the aerobic storage tank 311 is fixedly connected to a first diverter block 32, and the two output ends of the first diverter block 32 are connected to a connecting pipe 321. The other end of the connecting pipe 321 passes through the aerobic storage tank 311 and is connected to the first suction and discharge block 316. The side of the aerobic storage tank 311 is fixedly connected to a first water pump 33, and the first water pump 33 is electrically connected to the controller. The output end of the first water pump 33 is fixedly connected to a first liquid guide tube 331, and the first liquid guide tube 331 is connected to one input end of the two-position three-way valve 19 located on one side of the aerobic storage tank 311. The input end of the first water pump 33 is fixedly connected to a first infusion tube 332, and the other end of the first infusion tube 332 is connected to an input end of the first diverter block 32.

[0027] The first water pump 33 can be used to transport the liquid stored in the aerobic storage tank 311 to the nutrient solution storage mechanism 4 on the upper end surface of the aerobic storage tank 311 before the lifter 16 opens the gate 17 connected to the microbial purification tank 1, so as to prevent the sewage from mixing with the liquid stored in the aerobic storage tank 311 when the gate 17 is opened. When the microbial attachment component 34 of the aerobic component 31 returns to the aerobic storage tank 311, the lifter 16 controls the gate 17 to close. At this time, the first water pump 33 discharges the sewage stored in the aerobic storage tank 311 back into the microbial purification tank 1 through the drainage block 110.

[0028] Reference Figures 12 to 13 The anaerobic component 35 includes an anaerobic storage box 351 fixedly connected to the side of the microbial purification box 1, and the anaerobic storage box 351 is connected to the connecting port on the other side of the microbial purification box 1. The part of the slide 15 extending to the anaerobic component 35 is fixedly connected to the inner bottom thereof. At least one cooling rod 352 is fixedly connected to the side of the anaerobic component 35, and at least one second suction and discharge block 353 is fixedly connected to the inner bottom of the anaerobic component 35. A second diverter block 36 is fixedly connected to the bottom of the anaerobic component 35, and the output end of the second diverter block 36 is connected to the second diverter block 36. A second water pump 37 is fixedly connected to the side of the anaerobic storage box 351, and the output end of the second water pump 37 is fixedly connected to a second liquid guide tube 371. The input end of the second water pump 37 is fixedly connected to a second liquid infusion tube 372, and the other end of the second liquid infusion tube 372 is connected to the input end of the second diverter block 36. The anaerobic storage tank 351 in the anaerobic assembly 35 is used to provide an anaerobic environment for anaerobic microorganisms, and the second water pump 37 has the same function and effect as the first water pump 33.

[0029] Reference Figures 11 to 12The microorganism attachment component 34 includes a plurality of electric sliders 343 slidably connected to the slide 15, and the electric sliders 343 are electrically connected to the controller. The top of the electric slider 343 is fixedly connected to a fixed frame 341, and the interior of the fixed frame 341 is fixedly connected to a microorganism attachment rack 342. A plurality of distance limiting seats 344 are fixedly connected around the opposite surfaces of two adjacent fixed frames 341.

[0030] Two microorganism attachment components 34 are placed in the aerobic component 31 and the anaerobic component 35 respectively, and aerobic microorganisms and anaerobic microorganisms are attached thereto respectively. The distance limiting seat 344 limits the distance between two adjacent fixed frames 341 to increase the living and reproduction space for aerobic microorganisms or anaerobic microorganisms attached to the microorganism attachment rack 342, and the electric slider 343 slides into the corresponding microorganism attachment rack 342 in the microorganism purification box 1 through the slide 15 according to the degree of sewage pollution.

[0031] Reference Figure 8 、 Figure 12 、 Figure 13 The nutrient solution storage mechanism 4 includes a nutrient solution tank 41 fixedly connected to the upper end surfaces of the aerobic storage tank 311 and the anaerobic storage tank 351 respectively. The upper end surface of the nutrient solution tank 41 is clamped with a nutrient bottle 42. The side of the nutrient solution tank 41 is fixedly connected with a connecting pipe 43, and the other side of the connecting pipe 43 is connected to the input end of the two-position three-way valve 19.

[0032] The nutrient solution tank 41 can be used to store the original liquid in the aerobic storage tank 311 or the anaerobic storage tank 351 when it is connected to the microbial purification tank 1, and a growth factor amount detector is provided in the nutrient solution tank 41 (the growth factor amount detector is a prior art, so it is not drawn in the figure), which is used to detect the amount of growth factor in the liquid and supplement the missing growth factor to the liquid through the nutrient bottle 42.

[0033] The operating principle of this embodiment is as follows: Step 1: The two solenoid valves 11 are connected to the previous process and the next process of sewage treatment respectively. When the sewage enters the microbial purification box 1 from the previous process, the controller opens the solenoid valve 11 corresponding to the previous process, so that the sewage enters the microbial purification box 1 through the porous box 14 connected to the solenoid valve 11 (at this time, the corresponding solenoid valve 11 connected to the next process is closed). When the sewage from the previous process completely enters the microbial purification box 1, the controller controls the two solenoid valves 11 to be in a closed state. At this time, the microbial purification box 1 is in a closed state. At this time, the microbial sensor 18 (the microbial sensor 18 is a prior art) starts to detect the types of impurities in the sewage and feeds the results back to the controller. The controller controls one of the two lifters 16 to operate according to the feedback information. For example, if the microbial sensor 18 feeds back to the controller the detection information indicating that the impurities in the sewage only require aerobic microbial treatment, the lifter 16 corresponding to the aerobic component 31 is activated, thereby opening the corresponding gate 17. If the microbial sensor 18 feeds back to the controller the detection information indicating that the impurities in the sewage only require anaerobic microbial treatment, the opposite is true (the lifters 16 on both sides cannot open their corresponding gates 17 at the same time). If the microbial sensor 18 feeds back to the controller the detection information indicating that the impurities in the sewage require both aerobic and anaerobic microbial treatment, the staff controls the two lifters 16 in the controller to open the gates 17 in a sequential order according to the actual situation. It should be noted that when the lifter 16 corresponding to the aerobic component 31 opens the gate 17, it must wait until the microorganism attachment component 34 in the aerobic component 31 returns to the aerobic component 31. When the corresponding lifter 16 closes the gate 17, the lifter 16 corresponding to the anaerobic component 35 can open the gate 17, that is, the microbial purification box 1 will not be connected to the aerobic component 31 and the anaerobic component 35 at the same time.

[0034] Among them, when the controller is based on the feedback information of the microbial sensor 18, the environment inside the microbial purification box 1 will also change according to whether aerobic microbial treatment or anaerobic treatment is selected: When aerobic microorganisms are needed to purify wastewater: The controller starts the exhaust and suction fan 12 to rotate forward, causing it to deliver air into the cavity plate 21. The air enters the cavity plate 21 through the air pipe 13 and the diverter pipe 22. As the exhaust and suction fan 12 continuously delivers air into the cavity plate 21, the air pushes the ventilation box 261 down along the connecting hole 241. As the air pressure increases, the elastic rope 243 is stretched, and the exhaust hole 262 on the ventilation box 261 gradually exposes the connecting hole 241, thereby connecting the exposed area and the submerged area. The exhaust and suction fan 12 The greater the air intensity provided, the more the exhaust holes 262 are exposed, and the air in the exposed area passes through the first air hole 23, and the air in the submerged area passes through the second air hole 25. At the same time, air is injected into the microbial purification box 1, providing sufficient oxygen for aerobic microorganisms to help them decompose pollutants in the sewage. After the aerobic microorganisms complete the sewage purification, the exhaust and suction dual-purpose fan 12 is turned off, the air pressure disappears, and the stretched elastic rope 243 returns to the original position of the connecting hole 241 under the action of the rebound force. When anaerobic microorganisms are required to purify sewage: The exhaust and suction fan 12 reverses to absorb the air in the cavity plate 21. During this process, the ventilation box 261 moves upward under the tension of the elastic rope 243, the exhaust hole 262 gradually closes, and the check valve 263 prevents the gas from the submerged area from being discharged. The suction airflow can only be discharged from the exposed area through the first air hole 23, preventing sewage from flowing out of the cavity plate 21 and preventing the suction airflow discharged from the submerged area from disturbing the anaerobic environment in the box.

[0035] When anaerobic microorganisms and aerobic microorganisms are needed to purify sewage: the operations of purifying sewage with anaerobic microorganisms and aerobic microorganisms will be repeated (according to the order in which anaerobic microorganisms and aerobic microorganisms are used, and this order is determined by the types of pollutants in the sewage. If the pollutants purified by aerobic microorganisms account for a larger proportion in the sewage, aerobic microorganisms will be used for purification first, otherwise anaerobic microorganisms will be used for purification first) and the above operations will be performed in sequence.

[0036] Among them, the submerged area is located in the sewage and the exposed area is located above the sewage surface, so a water level detector is provided in the microbial purification box 1 (the water level detector is a prior art and is not shown in the figure) to ensure that the exposed area is located above the sewage surface.

[0037] It is important to note that: 1. When the exhaust and suction fan 12 delivers air into the cavity plate 21, the check valve 263 is in an open state, allowing the air in the ventilation box 261 to be discharged through the exhaust hole 262, so that the air in the open area and the submerged area enter the microbial purification box 1 through the first air hole 23 and the second air hole 25 respectively to provide oxygen for aerobic microorganisms; when the exhaust and suction fan 12 reverses to absorb air, the check valve 263 cannot pass through the exhaust hole 262, thereby blocking the exhaust hole 262 and preventing the gas from being discharged from the submerged area, ensuring that the suction airflow is discharged only from the first air hole 23 in the open area, and preventing the outflow of sewage and the airflow in the submerged area from interfering with the anaerobic environment.

[0038] 2. When the exhaust and suction fan 12 delivers air to the microbial purification box 1, the air output by the exhaust and suction fan 12 makes the air pressure in the air pipe 13 higher than the air pressure in the microbial purification box 1. Under the action of this pressure difference, the valve core of the one-way valve is pushed open, the one-way valve opens, and air can smoothly enter the microbial purification box 1, thereby increasing the oxygen in the sewage and the microbial purification box 1 while also avoiding excessive pressure in the microbial purification box 1; and when the exhaust and suction fan 12 inhales air, the pressure in the air pipe 13 is lower than the pressure in the microbial purification box 1. At this time, the air in the microbial purification box 1 tends to flow into the air pipe 13, but the valve core of the one-way valve fits tightly against the valve seat under the action of the pressure difference and its own structure, and the one-way valve closes, preventing the air in the microbial purification box 1 from flowing back, thereby avoiding affecting the treatment environment in the box.

[0039] 3. The exhaust and suction fan 12 does not work continuously when it is rotating in reverse, but only draws in air that will not cause negative pressure in the microbial purification box 1. Since an air pressure detector is provided in the microbial purification box 1 (the air pressure detector is a prior art and is not shown in the figure), when negative pressure appears in the microbial purification box 1, the air pressure detector feeds back information to the controller, and the controller stops the exhaust and suction fan 12 at this time. The exhaust and suction fan 12 works continuously when it is rotating in the forward direction.

[0040] Step 2: Storage status of aerobic microorganisms when not in use: The aerobic storage box 311 in the aerobic component 31 is used to store the microorganism attachment component 34 (here, the microorganism attachment rack 342 in the microorganism attachment component 34 is attached with aerobic microorganisms). The aerobic storage box 311 stores liquid that is conducive to the growth of aerobic microorganisms. The air intake fan 312 is electrically connected to the controller. After being started, it draws air from the air supply block 314 through a pipe to provide oxygen for the aerobic microorganisms attached to the microorganism attachment component 34. The air outlet 313 on the upper end surface of the aerobic storage box 311 realizes air circulation in the box. The heating fill light 315 (the heating fill light 315 is a heating fill light 315 that can be immersed in water) provides a suitable temperature and lighting environment for the aerobic microorganisms, thereby promoting their growth and reproduction.

[0041] The state of aerobic microorganisms when used: When the sewage requires aerobic microbial treatment, the lifter 16 opens the gate 17 connected to the aerobic storage tank 311 based on the detection results of the sewage impurities by the microbial sensor 18. The microbial attachment assembly 34, driven by the electric slider 343, enters the microbial purification tank 1 along the slide 15, and the aerobic microorganisms begin to decompose the pollutants in the sewage. The controller can control a corresponding number of electric sliders 343 based on the pollutant information in the sewage feedback from the microbial sensor 18 to drive the microbial attachment racks 342 into the microbial purification tank 1, and the aerobic microorganisms begin to decompose the pollutants in the sewage. When the corresponding number of electric sliders 343 drive the microbial attachment racks 342 attached with aerobic microorganisms into the microbial purification tank 1, the lifter 16 will close the gate 17, thereby re-disconnecting the aerobic storage tank 311 from the microbial purification tank 1 (at this time, since the microbial attachment racks 342 have not all returned to the aerobic storage tank 311, the lifter 16 corresponding to the anaerobic assembly 35 will not operate).

[0042] Among them, before the lifter 16 corresponding to the aerobic component 31 receives the controller instruction to open the gate 17, in order to prevent the liquid stored in the aerobic storage tank 311, which is conducive to the growth of aerobic microorganisms, from mixing with the sewage entering the microbial purification tank 1, thereby affecting the sewage treatment effect and the living environment of the microorganisms, the system will first start the first water pump 33, whose input end is connected to the first diversion block 32 at the bottom of the aerobic storage tank 311 through the first infusion pipe 332, to extract the liquid from the aerobic storage tank 311, and the liquid flows into the first water pump 33 through the first infusion pipe 332, and then is output from its output end through the first liquid guide pipe 331. The first liquid guide pipe 331 is connected to one of the input ends of the two-position three-way valve 19 located on one side of the aerobic storage tank 311. Under the control of the controller, the two-position three-way valve 19 switches to the corresponding path, so that the liquid flows smoothly into the nutrient solution tank 41 for storage.

[0043] When the microbial attachment rack 342 completes the purification of the sewage and returns to the aerobic storage tank 311 along the slide 15 under the drive of the electric slider 343, the lifter 16 controls the gate 17 to close according to the controller instruction. At this time, the aerobic storage tank 311 has been mixed with the purified sewage and needs to be discharged. The first water pump 33 is started again, but this time its working direction is opposite to before. The sewage in the aerobic storage tank 311 is first collected by the first suction and discharge block 316, and then flows into the first diversion block 32 through the connecting pipe 321. The first water pump 33 draws the sewage out of the first diversion block 32 through the first infusion pipe 332 and outputs it through the first liquid guide pipe 331. Under the control of the controller, the two-position three-way valve 19 switches the passage again, allowing the sewage to enter the drainage block 110 through the connecting pipe and finally be discharged back into the microbial purification tank 1.

[0044] Storage status of the anaerobic module 35 when not in use: The anaerobic storage box 351 in the anaerobic assembly 35 provides an anaerobic environment for anaerobic microorganisms. A cooling rod 352 is installed on the side of the anaerobic storage box 351 to maintain the low-temperature anaerobic conditions in the box.

[0045] The state of anaerobic microorganisms when in use is the same as that of aerobic microorganisms, so the state of aerobic microorganisms when in use is referred to.

[0046] When the microbial sensor 18 detects that the microbial treatment has been completed, the controller controls the two solenoid valves 11 to open, so that the sewage enters the next process (the next process has a water pump to absorb sewage by default). Step 3: The nutrient solution tank 41 of the nutrient solution storage mechanism 4 is respectively fixed on the upper end surfaces of the aerobic storage tank 311 and the anaerobic storage tank 351, and the nutrient bottle 42 is clamped on the upper end surface of the nutrient solution tank 41. Vitamins, amino acids, purines, pyrimidines and other growth factors are stored inside. The connecting pipe 43 on the side of the nutrient solution tank 41 is connected to the input end of the two-position three-way valve 19. When the aerobic or anaerobic storage tank is connected to the microbial purification tank 1, the nutrient solution tank 41 stores the original liquid therein, and the growth factor amount detector in the nutrient solution tank 41 detects the content of growth factors in the liquid in real time. When insufficient growth factors are detected, the nutrient bottle 42 supplements the missing growth factors to the nutrient solution tank 41, promotes the reproduction of aerobic and anaerobic microorganisms, and improves their ability to decompose and transform pollutants in sewage.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An acrylonitrile wastewater treatment device, characterized in that: include: Microbial purification box (1), A suction mechanism (2), the suction mechanism (2) having two inner walls symmetrically arranged on both sides of the width direction of the microbial purification box (1), the suction mechanism (2) comprising a cavity plate (21) fixedly connected to the inner wall of the microbial purification box (1), a partition block (24) being arranged at an upper position inside the cavity plate (21), a plurality of air separation components (26) being arranged in a linear array inside the partition block (24), and the partition block (24) separating the cavity plate (21) into an open area and a submerged area in the upper and lower parts; A microorganism storage mechanism (3), the microorganism storage mechanism (3) comprising an aerobic component (31) and an anaerobic component (35) symmetrically arranged on both sides of the length direction of the microorganism purification box (1), and a microorganism attachment component (34) is arranged inside each of the aerobic component (31) and the anaerobic component (35); The nutrient solution storage mechanism (4) has two nutrient solution storage mechanisms (4) and is respectively arranged on the upper end surfaces of the aerobic component (31) and the anaerobic component (35).

2. An acrylonitrile wastewater treatment device according to claim 1, characterized in that, The upper end surface of the microorganism purification box (1) is fixedly connected to a dual-purpose exhaust and suction fan (12), and the dual-purpose exhaust and suction fan (12) is electrically connected to a controller. The output end of the dual-purpose exhaust and suction fan (12) is symmetrically fixedly connected to two air pipes (13). The upper end surface of the microorganism purification box (1) is fixedly connected to a one-way valve. Both sides of the width direction of the microorganism purification box (1) are provided with electromagnetic valves (11), and the electromagnetic valves (11) are electrically connected to the controller. The inner bottom of the microorganism purification box (1) is fixedly connected to a porous box (14). The output ends of the electromagnetic valves (11) on both sides are connected to both sides of the porous box (14) through pipes penetrating the microorganism purification box (1). A slideway (15) is fixedly connected to the width direction of the upper end surface of the porous box (14), and both ends of the slideway (15) extend into the aerobic component (31) and the anaerobic component (35) respectively. The microorganism purification box (1) is provided with a connecting port on both sides in the length direction.

3. An acrylonitrile wastewater treatment device according to claim 2, characterized in that, A lifter (16) is fixedly connected to both sides of the microorganism purification box (1) and above the communication port, and the lifter (16) is electrically connected to the controller. A gate plate (17) is slidably connected in the communication port, and the lifting end of the lifter (16) is fixedly connected to the gate plate (17). A microorganism sensor (18) is fixedly connected to the inner wall of the microorganism purification box (1), and the position of the microorganism sensor (18) corresponds to that of the partition block (24). A two-position three-way valve (19) is fixedly connected to both sides of the microorganism purification box (1) corresponding to the lifter (16), and the two-position three-way valve (19) is electrically connected to the controller. A drainage block (110) is fixedly connected to both sides of the microorganism purification box (1), and the drainage block (110) corresponds to the two-position three-way valve (19). The output end of the two-position three-way valve (19) is connected to the drainage block (110) through a pipeline penetrating the microorganism purification box (1).

4. An acrylonitrile wastewater treatment device according to claim 1, characterized in that, A plurality of first air holes (23) and a plurality of second air holes (25) are provided in a rectangular array on one side of the cavity plate (21) away from the microbial purification box (1), wherein the first air holes (23) and the second air holes (25) correspond to the positions of the exposed area and the submerged area, respectively. An inlet and outlet shunt pipe (22) is provided on the upper end surface of the cavity plate (21), and the multiple water outlet ends of the shunt pipe (22) are connected to the cavity plate (21), and the water inlet end of the shunt pipe (22) is connected to one end of the air pipe (13) away from the exhaust and suction dual-purpose fan (12); A plurality of communication holes (241) are provided in a linear array within the partition block (24), a cross fixing rod (242) is fixedly connected to the inner wall of the communication hole (241), the air separation assembly (26) corresponds to the communication hole (241), and the air separation assembly (26) is located below the cross fixing rod (242), and an elastic rope (243) is fixedly connected to the center position of the bottom of the cross fixing rod (242).

5. An acrylonitrile wastewater treatment device according to claim 4, characterized in that, The air-isolating assembly (26) includes a ventilation box (261) slidably connected to the inner wall of the connecting hole (241), a plurality of exhaust holes (262) are provided in a rectangular array around the ventilation box (261), a check valve (263) is installed inside each exhaust hole (262), the lower end of the elastic rope (243) is fixedly connected to the bottom of the ventilation box (261), and a plurality of fixed rods (264) are fixedly connected to the bottom of the ventilation box (261) with the elastic rope (243) as the center, and the rod body of the fixed rod (264) is fixedly connected to the gas collecting cover (265) in a linear array, and the opening of the gas collecting cover (265) is set upward.

6. An acrylonitrile wastewater treatment device according to claim 2, characterized in that, The aerobic component (31) includes an aerobic storage box (311) fixedly connected to the side of the microbial purification box (1), the aerobic storage box (311) is connected to the communication port on one side of the microbial purification box (1), the slide (15) extends to the portion of the aerobic component (31) and is fixedly connected to the inner bottom thereof, the other side of the aerobic storage box (311) is fixedly connected to an air suction fan (312), the air suction fan (312) is electrically connected to the controller, and the upper end surface of the aerobic storage box (311) is fixedly connected to the upper end surface of the microbial purification box (1). A plurality of air outlet holes (313) are provided in a rectangular array at the edge of the aerobic storage box (311); an air supply block (314) corresponding to the air intake fan (312) is fixedly connected to the inner wall of the aerobic storage box (311); the air intake fan (312) is communicated with the air supply block (314) through a pipeline; a heating fill light (315) is fixedly connected to the inner wall of the aerobic storage box (311) symmetrically with the air supply block (314) as the center; and a first suction and discharge block (316) is fixedly connected to the inner bottom of the aerobic storage box (311).

7. An acrylonitrile wastewater treatment device according to claim 6, characterized in that: The bottom of the aerobic storage box (311) is fixedly connected to a first diverter block (32), two output ends of the first diverter block (32) are connected to a connecting pipe (321), the other end of the connecting pipe (321) passes through the aerobic storage box (311) and is connected to the first suction and discharge block (316), the side of the aerobic storage box (311) is fixedly connected to a first water pump (33), the first water pump (33) is electrically connected to a controller, the output end of the first water pump (33) is fixedly connected to a first liquid guide pipe (331), the first liquid guide pipe (331) is connected to one input end of a two-position three-way valve (19) located on one side of the aerobic storage box (311), the input end of the first water pump (33) is fixedly connected to a first infusion pipe (332), the other end of the first infusion pipe (332) is connected to an input end of the first diverter block (32).

8. An acrylonitrile wastewater treatment device according to claim 7, characterized in that: The anaerobic component (35) includes an anaerobic storage box (351) fixedly connected to the side of the microbial purification box (1), the anaerobic storage box (351) is connected to the communication port on the other side of the microbial purification box (1), the slide (15) extends to the portion of the anaerobic component (35) and is fixedly connected to the inner bottom thereof, the side of the anaerobic component (35) is fixedly connected to at least one cooling rod (352), the inner bottom of the anaerobic component (35) is fixedly connected to at least one second suction and discharge block (353), and the anaerobic The bottom of the component (35) is fixedly connected to a second diverter block (36), the output end of the second diverter block (36) is in communication with the second diverter block (36), the side of the anaerobic storage box (351) is fixedly connected to a second water pump (37), the output end of the second water pump (37) is fixedly connected to a second liquid guide tube (371), the input end of the second water pump (37) is fixedly connected to a second liquid infusion tube (372), the other end of the second liquid infusion tube (372) is in communication with the input end of the second diverter block (36); The microorganism attachment assembly (34) includes a plurality of electric sliders (343) slidably connected in a slideway (15), and the electric sliders (343) are electrically connected to a controller. The top of the electric slider (343) is fixedly connected to a fixed frame (341), the interior of the fixed frame (341) is fixedly connected to a microorganism attachment rack (342), and the opposite surfaces of two adjacent fixed frames (341) are fixedly connected to a plurality of distance limiting seats (344) around them.

9. An acrylonitrile wastewater treatment device according to claim 1, characterized in that: The nutrient solution storage mechanism (4) comprises a nutrient solution tank (41) fixedly connected to the upper end surfaces of the aerobic storage tank (311) and the anaerobic storage tank (351), respectively; a nutrient bottle (42) is clamped on the upper end surface of the nutrient solution tank (41); a connecting pipe (43) is fixedly connected to the side of the nutrient solution tank (41); the other side of the connecting pipe (43) is connected to the input end of the two-position three-way valve (19).

Images