Purification system and purification method thereof

Abstract

The present application relates to a purification system, comprising a culture unit and a delivery unit; the culture unit comprises a culture box and a culture carrier; the culture box comprises a frame and a surrounding net; the surrounding net is fixed in the frame and forms a culture space for water flow only; the culture space is provided with the culture carrier; the culture unit further comprises an aeration device; the aeration device is arranged at the bottom of the culture unit and faces the culture space; the delivery unit comprises at least a hoist; the hoist is used to deliver the culture unit to a designated position in the pool; from the water inlet to the water outlet, the number of the culture carriers in the culture box gradually increases, and the aeration amount of the aeration device gradually decreases.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment, and more particularly to a biological wastewater purification system. Background Technology

[0002] In the water sector, MBBR (Moving Bed Biofilm Reactor) technology is a crucial wastewater treatment solution. It combines the activated sludge and biofilm processes, treating wastewater through suspended biological media within the reactor. Its high treatment capacity, small footprint, low energy consumption, and strong adaptability to load fluctuations make it effective for treating municipal and industrial wastewater. In upgrading urban wastewater treatment plants, large-scale expansion is unnecessary; simply adding suspended media to increase microbial biomass significantly improves nitrogen and phosphorus removal rates while reducing upgrade costs. In industrial wastewater treatment, MBBR technology is widely used in industries such as chemical, food processing, pharmaceuticals, and textiles for treating high-organic-concentration wastewater and wastewater containing toxic substances.

[0003] In actual operation, the MBBR system will install an interception device at the outlet to prevent the loss of suspended biological packing. However, there are problems such as local accumulation of packing at the end of the outlet leading to system blockage, excessive growth of biofilm, insufficient dissolved oxygen, and unstable ammonia nitrogen removal effect, which affect the wastewater treatment efficiency and the stable operation of the system.

[0004] In today's world, environmental standards in the water sector are becoming increasingly stringent, and nitrogen and phosphorus removal standards are also rising accordingly, making the improvement of MBBR systems imperative. Summary of the Invention

[0005] To solve the above problems, a purification system is provided, and the technical solution provided is as follows, including a cultivation unit and a delivery unit;

[0006] The cultivation unit includes a cultivation box and a cultivation carrier. The cultivation box includes an enclosure net and a frame that is connected horizontally and vertically. The enclosure net is fixed inside the frame and forms a cultivation space within the frame that allows only water and air to circulate. The cultivation space contains the cultivation carrier. The cultivation unit also includes an aeration device, which is located at the bottom of the cultivation unit and aerates the cultivation space.

[0007] The delivery unit includes at least a crane, which is used to deliver the culture unit to a designated location within the pool;

[0008] From the inlet to the outlet, the number of culture carriers loaded in the culture tank gradually increases, while the aeration rate of the aeration device gradually decreases.

[0009] Based on the above technical solution, the delivery unit also includes a conveying device, which is set at the bottom of the pool. The conveying device includes a track and a drive mechanism, and the culture box slides on the track under the drive mechanism.

[0010] Based on the above technical solution, the driving mechanism is a chain conveyor mechanism.

[0011] Based on the above technical solution, the driving mechanism is a chain conveyor.

[0012] Based on the above technical solution, the culture unit also includes a shuttle assembly, which includes a support base, a main slide, a secondary slide, and a locking mechanism. The support base is hollow in the middle, and the culture box is detachably installed on the edge of the support base. The main and secondary slides are respectively located on the left and right sides of the support base, and the locking mechanism is located on the secondary slide.

[0013] Multiple locking mechanisms are installed in an array on the chain rod of the chain conveyor. Each locking mechanism includes at least an electromagnetic chuck and a magnetically attracted plate. The magnetically attracted plate is located at the bottom of the auxiliary slide. Multiple electromagnetic chucks are installed in an array on the chain rod of the chain conveyor. When the electromagnetic chuck is working, the magnetically attracted plate is attracted by magnetic force and moves closer to the electromagnetic chuck. When the magnetically attracted plate is attached to the electromagnetic chuck, the shuttle assembly locks with the drive mechanism.

[0014] Based on the above technical solution, one end of the magnetic suction plate is hinged to the auxiliary slide, and the other end is a free end;

[0015] The locking mechanism also includes a reset assembly, which includes a telescopic sleeve with a reset spring inside. One end of the telescopic sleeve is hinged to the auxiliary slide, and the other end is hinged to the magnetic suction plate near the middle.

[0016] Based on the above technical solution, a positioning unit is also included. The positioning unit includes a gantry frame, a lifting part, and a bearing part. There are multiple gantry frames, which are arranged on the left and right sides of the direction of movement of the conveying device. The bottom of the gantry frame is fixed to the bottom of the pool, and the top extends out of the pool.

[0017] The supporting unit includes a gripper plate, a gripper, a power mechanism I, and a supporting frame. The edge of the supporting frame is provided with a slider A, which slides up and down within the gantry frame. The lifting unit is located at the top of the gantry frame and is used to drive the supporting frame to move up and down. A rotation shaft I is provided between the sliders A on the left and right sides. The gripper plate is fixed below the rotation shaft I, and the gripper is fixed on the gripper plate. The power mechanism I is used to drive the rotation shaft I to rotate, which causes the gripper to swing and pick up and put down the incubator.

[0018] Based on the above technical solution, the locking mechanism also includes a clamping member, a mounting seat, and a pull belt. The clamping member is fixed on the chain rod of the chain conveyor, and the mounting seat is set on the clamping member. The mounting seat is threadedly connected to the electromagnetic chuck, and the pull belt is clamped between the two. The two electromagnetic chucks are a group, and the two ends of the pull belt are respectively connected to the two electromagnetic chucks in the same group and the mounting seat.

[0019] The mounting base and / or clamps are made of non-metallic, non-magnetic materials, and the pull straps are made of flexible materials.

[0020] Based on the above technical solution, the delivery unit also includes a guiding device, which includes a lower frame, an upper frame, an electric slide rail mechanism, a rotating mechanism, and a rigging guiding mechanism.

[0021] One end of the lower frame is connected to the top of the gantry frame, and the other end is fixed to the pool wall near the top of the pool. The slide rail of the electric slide rail mechanism is set at the top of the lower frame, and the upper frame is set on the slider B of the electric slide rail mechanism. The upper frame is equipped with a rotating mechanism, which includes at least a power mechanism II, a self-rotating shaft II, and a revolution support plate.

[0022] The revolution support plate is L-shaped, with one end fixedly mounted on the rotation shaft II, and the other end connected to the rigging guide mechanism;

[0023] The rigging guiding mechanism includes at least a guide head, which is truncated cone-shaped and has multiple inwardly recessed guide grooves on its side wall. The minimum width of the guide grooves is greater than the maximum width of the rigging.

[0024] Based on the above technical solution, the rigging guiding mechanism also includes a dome-shaped cover. The cover is made of soft material, is set on top of the guide head and covers the guide head, but keeps the guide groove unobstructed from top to bottom.

[0025] A method of using a purification system includes:

[0026] S1. Based on the shape and size parameters of the pool, divide the pool into three zones: L zone (zone with low culture carrier filling rate), M zone (zone with high culture carrier filling rate), and H zone (zone with the highest culture carrier filling rate).

[0027] S2. Plan the number of incubators required in different areas, then mark the areas on the incubators, and fill the incubation space with an appropriate number of culture media according to the area markings;

[0028] S3. Use the delivery unit to place the incubator into the designated area;

[0029] S4. According to the different areas divided in step 1, control the aeration device to provide different aeration rates;

[0030] S5. Obtain ammonia nitrogen data in the water. If the data does not meet expectations, proceed to step 6. If the data meets expectations, the operation ends.

[0031] S6. Based on the recovery of culture chambers that do not meet the requirements, adjust the specific surface area of ​​the culture carrier in the recovered culture chamber, change the filling rate of the culture carrier in the culture chamber, increase the aeration rate in the area where the culture chamber is located, and change the dissolved oxygen parameter.

[0032] S7. When the ammonia nitrogen data meets expectations, record the specific surface area, filling rate, and aeration rate of the culture carrier used in different areas of the pool. When the ammonia nitrogen data needs to be adjusted, adjust the above parameters accordingly.

[0033] Beneficial effects:

[0034] 1. A novel biological pool structure is provided, which changes the method of directly placing the carrier for culturing microorganisms into the pool. The carrier is intercepted within a certain space, which restricts its flow in the pool and avoids the problem of carrier accumulation at the outlet that is common in traditional pools.

[0035] 2. By using a fixed crane and a conveyor system, the entire treatment pool can be fully covered, making it suitable for treatment pools of different sizes, as well as those with unconventional shapes.

[0036] 3. The use of chain-driven conveyors, with their large structural clearance, can reduce water flow resistance. At the same time, their simple structure and low cost can bring convenient maintenance and provide sustainable development.

[0037] 4. The culture chamber moves on the conveyor using a shuttle assembly. The main and auxiliary slides and locking mechanism ensure both stability during movement and reliability when the chamber is fixed to the bottom of the tank for a long time.

[0038] 5. The positioning unit solves the problem of inaccurate positioning when the culture box is deployed and retrieved. When deployment is required, it can ensure that the culture box is connected to the drive mechanism as expected, and when retrieval is required, it can lift the culture box out of the water. This greatly improves deployment efficiency and reduces downtime caused by maintenance issues.

[0039] 6. A guiding device has been specially added to the delivery unit to cooperate with the crane to retrieve the culture tank. This solves the problem that traditional rigging is difficult to accurately hook the culture tank in the air. The guiding device can quickly hook the tank, and can efficiently retrieve even a large number of culture tanks.

[0040] 7. Based on the product structure and combined with our own practical experience, we have developed a working solution. By adding culture carriers with different specific surface areas to the culture tanks in pre-divided zones, and controlling the filling ratio of the culture carriers in different zones, we ensure that the culture carriers are fully fluidized in the water, maintaining good mass transfer and mixing effects. By controlling the aeration rate and dissolved oxygen concentration in stages, we can synergistically optimize the dissolved oxygen gradient in the water and on the biofilm on the culture carrier, ensuring the normal growth and activity of nitrifying and denitrifying bacteria. Nitrification and denitrification can be carried out simultaneously in the same reactor, achieving nitrification in the aerobic zone to convert ammonia nitrogen into nitrate, and denitrification in the anoxic zone to convert nitrate into nitrogen gas, thus achieving efficient removal of ammonia nitrogen. Attached Figure Description

[0041] Figure 1 This is a top view schematic diagram of the basic structure of the culture chamber of the present invention.

[0042] Figure 2 This is a front view schematic diagram of the basic structure of the incubator of the present invention.

[0043] Figure 3 This is a top view schematic diagram of the first embodiment of the present invention.

[0044] Figure 4 For the present invention Figure 3 A three-dimensional schematic diagram.

[0045] Figure 5 This is a top view schematic diagram of the second embodiment of the present invention.

[0046] Figure 6 For the present invention Figure 5 A magnified view of a portion of the image.

[0047] Figure 7 This is a top view of the culture chamber for installing the shuttle assembly according to the second embodiment of the present invention.

[0048] Figure 8 For the present invention Figure 5 Front view diagram.

[0049] Figure 9 For the present invention Figure 8 A magnified view of a portion of the image.

[0050] Figure 10 This is a side view schematic diagram of the locking mechanism according to the second embodiment of the present invention.

[0051] Figure 11 For the present invention Figure 10 A schematic diagram of the AA cross-section.

[0052] Figure 12This is a three-dimensional exploded view of the culture chamber housing for installing the shuttle assembly according to the second embodiment of the present invention.

[0053] Figure 13 This is a three-dimensional schematic diagram of the culture chamber for installing the shuttle assembly according to the second embodiment of the present invention.

[0054] Figure 14 This is a three-dimensional schematic diagram of the shuttle assembly and the conveying device in use according to the second embodiment of the present invention.

[0055] Figure 15 This is a partially enlarged top view of the positioning unit according to the third embodiment of the present invention.

[0056] Figure 16 This is a three-dimensional schematic diagram of the positioning unit in use according to the third embodiment of the present invention.

[0057] Figure 17 This is a three-dimensional schematic diagram of the positioning unit in the idle state according to the third embodiment of the present invention.

[0058] Figure 18 This is a perspective view of the installation position of the guide device according to the fourth embodiment of the present invention.

[0059] Figure 19 This is a perspective view of the guide device from the rear of the fourth embodiment of the present invention.

[0060] Figure 20 This is a three-dimensional schematic diagram of the guiding device in use according to the fourth embodiment of the present invention.

[0061] Figure 21 This is a top view of the rigging guide mechanism in use according to the fourth embodiment of the present invention.

[0062] Figure 22 This is a top view of the rigging guide mechanism in its used state after being flipped, according to the fourth embodiment of the present invention.

[0063] Figure 23 This is a regional decomposition example diagram of the fifth embodiment of the present invention.

[0064] Figure 24 This is a regional decomposition example diagram of the fifth embodiment of the present invention.

[0065] Figure 25 The support portion of the third embodiment of the present invention Detailed Implementation

[0066] Example 1.

[0067] This embodiment is designed to address increasingly stringent environmental protection requirements, reducing nitrogen and phosphorus levels and improving water quality—a problem urgently needing to be solved by water professionals. This embodiment attempts to provide an optimized biological treatment pond solution, a comprehensive solution to various problems existing in current biological treatment ponds, and an exploration combining practical problems and treatment experience. Figures 1 to 4 As shown, in this embodiment, the culture carrier carrying the microorganisms is no longer directly placed into the water tank, but is loaded into the culture box 1. The main structure of the culture box 1 consists of a frame and an enclosing net 2. The frame forms a base, and the enclosing net 2 encloses a space for loading the culture carrier on the basis of the frame. This shape can be a geometric shape or an irregular shape similar to a bundle. If the enclosing net 2 does not have an opening for easy replacement of the culture carrier, such as an elastic opening, it can be detached from the frame. If the enclosing net 2 has an opening for replacing the culture carrier, it can be directly fixed to the frame without disassembly, and can be directly destroyed when replacing. Of course, a detachable design can still be adopted.

[0068] like Figure 2 As shown, the aeration pipes originally laid at the bottom of the tank need to be modified beforehand. The aeration pipes no longer need to cover the entire bottom of the tank, nor do they need to be arranged at the original high density. In this embodiment, the aeration pipes can be laid out in a focused manner according to the location of the cultivation units to be placed, that is, they can be placed at the bottom of the cultivation units, which can save on pipe materials and maintenance costs.

[0069] like Figure 3 and Figure 4 As shown, multiple culture units are placed in the pool and arranged in an array. Compared to the original freely floating culture carriers, this embodiment, while reducing the number of culture carriers, achieves a significant theoretical improvement in ammonia nitrogen removal efficiency due to its multi-point centralized arrangement. (Refer to...) Figure 3 and Figure 4 The cultivation units are divided to further reduce the number of culture carriers and improve their efficiency and effectiveness. For example, the number of culture carriers loaded in a portion of the cultivation units near the inlet is reduced, creating a smaller loading section; while the number of culture carriers loaded in a portion of the cultivation units near the outlet is increased, creating a larger loading section; the culture carriers in the sections between these two sections can be loaded with the normal number of culture carriers. This allows for a tiered distribution of cultivation units even in small-sized pools. Correspondingly, the aeration rate and dissolved oxygen concentration are adjusted according to the division of the different cultivation units within the pool. For instance, the aeration rate and dissolved oxygen concentration are increased in the smaller cultivation units near the inlet, gradually decreasing from the inlet to the outlet.

[0070] Example 2.

[0071] The solution described in the first embodiment can use a crane located at the edge of the pool to lift and place the cultivation unit to the designated location. However, this solution is only suitable for small treatment pools and not for large or medium-sized pools. The reason is that in large or medium-sized pools, whether above ground or underground, the crane cannot completely cover the entire pool. While a tracked trolley can be built along the pool edge and cross the pool, its construction and maintenance costs are too high, and most importantly, maintenance is inconvenient. Furthermore, due to terrain and other factors, treatment pools are not always square. While curved tracks can be used for above-ground pools, they cannot be used for underground pools due to limited space. The situation of subordinate waterworks units is complex, with numerous pools of varying sizes and shapes, requiring a universal solution to address the problem. Therefore, this embodiment was developed.

[0072] In this embodiment, the conveying device is located at the bottom of the pool, and the track 4 is used to constrain and guide the sliding direction of the culture chamber 1. The driving mechanism 5 provides power for the sliding of the culture chamber 1. The connection between the track 4 and the culture chamber 1 can be any feasible method. For example, the culture chamber 1 can be connected to the track 4 in a non-fixed manner. In this case, the track 4 only serves to restrict and guide the movement trajectory of the culture chamber 1. It can be separated from the track 4 simply by lifting the culture chamber 1. Alternatively, the track 4 can be fixedly connected, so that the track 4 can be separated from the culture chamber 1 under controlled conditions.

[0073] The drive mechanism 5 can adopt any feasible solution, such as belt conveyor, electric slide rail, etc. This embodiment and other embodiments adhere to the principle of minimizing underwater electronic equipment and use a chain conveyor mechanism as the drive form, specifically a chain-driven conveyor to drive the movement of the culture tank 1 underwater. Figures 5 to 8 As shown, Figure 5 The diagram illustrates the common structure and dimensions of early surface water treatment ponds. A certain number of such ponds still exist today. In this embodiment, the positions of the track 4 and the drive mechanism 5 remain unchanged. The conveying device needs to transport the culture tank 1 to a designated position and arrange the array of culture tank 1 at the bottom of the pond. Therefore, the conveying device needs to extend as far as possible to cover the bottom of the pond. Consequently, when the track 4 is on the outer side, the bending radius of the chain conveyor is small; when the track 4 is on the inner side, the bending radius of the chain conveyor is large. The diagram does not show components such as tension bearing seats and conveyor load-bearing frames that the chain conveyor should have when bending. These are considered to be present in this embodiment and other embodiments to support the operation of the drive mechanism 5.

[0074] Figure 5The conveying mechanism shown, when track 4 is on the inner and outer sides, inevitably results in the culture tanks 1 being grouped into sets of two, with a certain interval between each set. The interval distance is at least the bending diameter of the chain conveyor, which facilitates the division of culture units as described in the first embodiment. The chain conveyor is chosen for two reasons: firstly, it is a purely mechanical mechanism, allowing the power to be positioned outside the tank, away from the water surface, thereby reducing the number of underwater electronic components and increasing reliability and durability; secondly, it reduces the obstruction of water flow by the chain 39. Because the chain spacing of the chain conveyor is relatively large, it facilitates water flow, reducing interference and obstruction to the fluidization state of the culture medium in the tank. Figure 5 , Figure 6 and Figure 8 As shown, the aeration pipe and microporous aerator of the aeration device 3 are arranged between the track 4 and the drive mechanism 5, following the path of the conveying device. Compared with the traditional treatment tank, the material and scale of the aeration device 3 are greatly reduced. At the same time, the aeration device 3 aerates from below the culture box 1, and the aeration effect is not reduced.

[0075] In this embodiment, there is also a first preferred example, such as Figures 6 to 8 , Figures 12 to 14 As shown, this embodiment provides a shuttle assembly to complete the culture unit. The support base 6 is installed at the bottom of the frame of the culture chamber 1, and the support base 6 does not contact the enclosure net 2. The main slide 7 is located on the side of the support base 6 near the track 4, as shown... Figure 8 As shown, it can be semi-enclosed on the track 4, or a roller 35 can be installed below the main slide 7, with a groove 36 on the track 4 for the roller 35 to roll. The auxiliary slide 8 is located on the side of the support 6 near the drive mechanism 5, and the auxiliary slide 8 is mainly used to connect the drive mechanism 5, i.e., the chain conveyor. For example... Figure 8 As shown, when the electromagnetic chuck 9 is energized, the magnetic suction plate 10 of the locking mechanism approaches and attracts the electromagnetic chuck 9. When the drive mechanism 5 is working, the culture box 1 is transported to the designated location along the preset path of the conveyor mechanism with the support of the shuttle assembly. In this preferred embodiment, since the drive mechanism 5 bears heavy loads for a long time and is susceptible to corrosion underwater, a support platform 34 with pulleys is provided. The pulleys can be directly welded from strip-shaped I-beams to replace the chain conveyor to bear the weight of the culture box 1. The support platforms 34 can be arranged in an array near the chain conveyor. If multiple support platforms 34 are arranged in an array, the distance between adjacent support platforms 34 is less than half the width of the support base 6. To keep the drawings neat and concise, only the attached drawings are shown. Figure 8The supporting platform 34 is shown in the figure; other figures are omitted. Based on this preferred embodiment, to enable the magnetically attracted plate 10 to disengage and reset more quickly from the electromagnetic chuck 9 after power failure, a reset component is added to the shuttle assembly. This component mainly consists of a telescopic sleeve 11 and a reset spring. After power failure, the electromagnetic chuck 9 loses its magnetic attraction, and the tension of the reset spring causes the telescopic sleeve 11 to retract, causing the magnetically attracted plate 10 to swing and maintain a distance from the electromagnetic chuck 9. When the electromagnetic chuck 9 regains its magnetic attraction, it can still attract the magnetically attracted plate 10. When the two are magnetically connected, the reset spring pulls, causing the telescopic sleeve 11 to extend.

[0076] This embodiment also has a second preferred embodiment, which improves the electromagnetic chuck 9 of the locking mechanism. Since the drive mechanism 5 needs to make a 180-degree turn, the connecting part between the electromagnetic chuck 9 and the drive mechanism 5 may be subjected to bending, squeezing, etc. during the turn. Therefore, the improvement of the electromagnetic chuck 9 in this preferred embodiment is to add a non-metallic, non-magnetic mounting base 21. The electromagnetic chuck 9 is fixedly attached to one side of the mounting base 21, and a clamping member 20 is hinged to the other side. The clamping member 20 can also be made of non-metallic, non-magnetic material, but it can still be made of metal as long as it maintains a sufficient distance from the chain rod 39. The clamping member 20 is clamped to the chain rod 39 of the chain conveyor. A pull belt 22 is clamped between the mounting base 21 and the electromagnetic chuck 9. The two electromagnetic chucks 9 in the same group clamp the two ends of the same pull belt 22 respectively. The function of the pull belt 22 is to prevent the two electromagnetic chucks 9 from shaking uncontrollably and impacting the drive mechanism 5. The purpose of grouping two electromagnetic chucks 9 together is to increase the magnetic range underwater, increase the fault tolerance of the magnetic chuck plate 10, and improve the success rate of locking. In this preferred embodiment, there is also the issue of how to determine the position of the electromagnetic chucks 9. According to existing technical solutions, there are two methods. One is based on worker experience. The judgment is based on the fact that the chain conveyor can have its power source positioned above the water surface or on the pool platform, connected to the underwater chain conveyor via a drive shaft. A mark can be made on the drive wheel of the power source to determine a reset direction. When the mark aligns with the reset direction, it can be determined that a set of electromagnetic chucks 9 is in place underwater, and their location can be known. The second method is to install a waterproof and corrosion-resistant position sensor at a designated location when the culture tank 1 is placed in the water. When the electromagnetic chuck 9 passes the position sensor, it emits a position signal, thereby determining the position of the electromagnetic chuck 9. After determining the position of the electromagnetic chuck 9, the culture box 1 is dropped vertically from the water surface to the bottom of the pool. The magnetic suction plate 10 of the locking mechanism is always in a position where it can be magnetically connected to the electromagnetic chuck 9 at any time. However, for safety reasons, an underwater sensor is set at a certain position on the bottom of the pool, such as near the middle or front of the stroke of the drive mechanism 5, to detect whether the culture box 1 has passed by. For example, a laser sensor or other electronic products with good waterproof performance are used.

[0077] Each electromagnetic chuck 9 is connected to a chain rod 39 via a clamp 20. The pull belt 22 is also made of soft material, which ensures that the chain rod conveyor will not pull or damage any locking mechanism when it bends downwards or upwards at a bend.

[0078] Example 3.

[0079] This embodiment is based on the second embodiment and provides a solution for placing and recycling the culture tank 1 without emptying the pool water.

[0080] The specific usage principle of this embodiment is as follows:

[0081] 1. When it is necessary to place incubator 1

[0082] 1. Using the crane of the delivery unit, lift the culture box 1 to the top of the gantry frame 13 of the positioning unit 12;

[0083] 2. Start the lifting unit to drive the load-bearing frame 14 of the load-bearing unit 38 to rise along the gantry frame 13, and stop when the load-bearing frame 14 rises to the top of its stroke.

[0084] 3. Operate the crane to align the incubator 1 with the supporting frame 14 and lift it in;

[0085] 4. As the incubator 1 passes through the support frame 14 from above, the incubator 1 continues to descend;

[0086] 5. When the support base 6 of the incubator 1 falls on the gripper 16, the crane stops and controls the rigging to detach from the incubator 1;

[0087] 6. Reactivate the lifting mechanism to lower the support frame 14. The gripping plate 15 and handle 16 below the support frame 14 support the culture box 1 and submerge it in the water.

[0088] 7. When the shuttle assembly of the incubator 1 comes into contact with the conveying device, the electromagnetic chuck 9 is activated to attract the magnetic suction plate 10;

[0089] 8. Restart the lifting unit to lower the load-bearing frame 14 slightly, causing the grab 16 to disengage from the support base 6;

[0090] 9. Start the power mechanism I17, which drives the self-rotating shaft I18 to rotate, causing the grab plate 15 and the gripper 16 to swing to be parallel to the bottom of the pool;

[0091] 10. Finally, start the lifting unit to raise the supporting frame 14, and at the same time start the drive mechanism 5 to drive the culture box 1 to slide along the track 4 and slide out from between the gate bridge frame 13.

[0092] 2. When it is necessary to retrieve the culture chamber 1, simply reverse the above placement steps.

[0093] In this embodiment, the positioning unit 12 is designed to facilitate the relatively precise placement of the culture tank 1 onto the track 4 using a crane, thereby enabling the placement of the culture tank 1 without emptying the pool water. When not in use, the lifting unit drives the supporting frame 14 to rise above the water surface, and the power mechanism I 17 can be activated to rotate the self-rotating shaft I 18 on the slider A 19, causing the grab plate 15 to swing parallel to the water surface, preventing it from being submerged in water.

[0094] like Figures 15 to 17 As shown, the portal frame 13 is fixed to the bottom of the pool near the starting point of the track 4. There are two portal frames 13, located opposite each other on the track 4 and the chain conveyor. The two portal frames 13 are connected by a frame. The portal frames 13 are U-shaped and have a frame structure. Each portal frame 13 has multiple crossbeams in the middle to strengthen the structure. The two portal frames 13 and the connected frame form a top-opening channel 37 for the incubator 1 to move in and out. The lifting part is located at the top inside the portal frame 13. It can adopt any solution, such as heavy-duty electric slide rail, hydraulic lifting, etc. In this embodiment, an electric hoist can be used as the lifting part solution. Each portal frame 13 is equipped with an electric hoist (not shown). The two electric hoists synchronously control the lifting of the support frame 14. In order to make the support frame 14 move up and down stably, a groove is opened on the portal frame 13. The slider A19, which is fixed to the support frame 14, can slide up and down in the groove to prevent the support frame 14 from swinging laterally during lifting.

[0095] In this embodiment, whether the culture tank 1 is being deployed or retrieved, the gripping plate 15 and gripper 16 will reset under the drive of the power mechanism I 17 after the operation is completed. That is, they will swing to an angle parallel to the water surface with the rotation axis I 18 and rise out of the water surface. There are two gripping plates 15 and two grippers 16, located between the gantry frame 13. The gripper 16 is shaped and structured similarly to the forks of a forklift, while the gripping plate 15 is structured similarly to the steel frame of a forklift. The gripper 16 and gripping plate 15 can be regarded as a lifting mechanism. To reduce the risk of the culture tank 1 slipping off the gripper 16, an electromagnet can also be installed on the gripper 16. When the gripper 16 contacts the support seat 6 of the culture tank 1, the electromagnet is activated, which can attract the steel support seat 6.

[0096] Example 4.

[0097] Based on the third embodiment, this embodiment provides a solution that enables the rigging of a crane to quickly align with the lifting lug 40 of the culture box 1 and lift and retrieve it.

[0098] This embodiment works closely with a crane as part of the delivery unit, enabling the rapid recovery of numerous culture chambers 1.

[0099] like Figures 18 to 22 As shown, the specific usage method is as follows: ① When the gripper 16 of the positioning unit 12 lifts the incubator 1 from the water and rises to the highest point of its stroke, the crane is started to hoist the lifting slings to the top of the incubator 1; ② The electric slide rail mechanism 25 is started, and the slider B27 drives the upper frame 24 to slide towards the opening channel 37 at the top of the gantry frame 13; ③ When the guide head 31 of the upper frame 24 is directly above the opening channel 37, the slider B27 stops moving; ④ The crane is started again to slowly lower the cable hook of the slings. When the hook is about to contact the guide head 31, the lowering speed of the hook is further slowed down; ⑤ The hook and cable move from the guide head 31 to the upper frame 24. The head 31 slowly slides into the guide groove 32. If some of the cable rigging still deviates from the guide groove 32, it can be manually corrected and guided into the guide groove 32. ⑥ When the cable is in the guide groove 32, the descent of the rigging can be accelerated. ⑦ Under the guidance of the guide groove 32, the rigging can be connected to the culture chamber 1 relatively accurately. ⑧ After connecting to the culture chamber 1, the grabber 16 still holds the culture chamber 1, and the crane is started to continue releasing the cable, so that the cable is in a loose and slack state. ⑨ The power mechanism II 28 is started, which drives the self-rotating shaft II 29 to rotate, and at the same time drives the revolution plate 30 to rotate around the self-rotating shaft II 29 as the center, rotating the guide head 31 to the desired position. Figure 20 90 degrees; ⑩ Since the cable is in a slack state at this time and does not restrain the guide head 31, the electric slide rail mechanism 25 is activated again to drive the upper frame 24 to reset, so that the guide head 31 returns to the initial position. Restart the power mechanism II28 to drive the guide head 31 to rotate to the horizontal reset position; Finally, the crane was started to lift the culture chamber 1 out of the positioning unit 12.

[0100] In this embodiment, the lower frame 23 can be arranged on any side of the gantry frame 13, such as... Figure 18 As shown, in order to reduce the pressure on the gantry frame 13 and increase the convenience of maintenance of the guiding device, the lower frame 23 of the guiding device is set on the side close to the pool platform, so that the slide rail 26 of its electric slide rail mechanism 25 can be directly erected on the solid ground. Workers can operate and maintain it while standing on the pool platform without having to go down to the bottom or wall of the pool.

[0101] In this embodiment, the guide head 31 adopts a frustum shape, but it can also adopt other similar shapes, such as a cone shape, a teardrop shape, or other similar shapes with sharp ends. The purpose is to guide and unblock the rigging, avoid entanglement and swinging, and speed up the recovery. The frustum shape is chosen because the frustum structure is relatively short, which helps to avoid being entangled by the cable when rotating under the drive of the power mechanism II 28, and makes resetting easier. If a frustum shape is adopted, a dome-shaped cover 33 can also be set above the frustum. The cover 33 and the frustum can be detachably connected to reduce the direct impact of the rigging on the frustum and facilitate replacement if damaged. At the same time, the cover 33 is not a solid structure, which can reduce weight.

[0102] Example 5.

[0103] This embodiment provides a method for using the purification system, which enables the culture carrier to form an effective oxygen gradient and microbial environment difference, achieving simultaneous nitrification and denitrification, and ensuring the long-term stable operation of the MBBR system and the high efficiency of wastewater treatment.

[0104] like Figure 23 As shown, a medium-sized treatment tank is illustrated, and the tank is divided into zones. Zone L (with a low culture carrier filling rate) is marked by dashed lines near the inlet. Zone M has a higher culture carrier filling rate relative to Zone L. Zone H, near the outlet, has the highest culture carrier filling rate. After dividing the zones, the number of culture tanks 1 to be deployed in different zones is determined based on factors such as available space, the condition of the drive mechanism 5, and whether there is interference from other facilities at the bottom of the tank. For example, when the drive mechanism 5 turns, should it bend downwards or upwards? Figure 23 As shown, due to the need to install aeration pipes between track 4 and the chain conveyor, the distance between track 4 and the chain conveyor must be consistent. When the chain conveyor bends downwards, due to the advantages of the belt conveyor structure, its turning radius is small, resulting in fewer culture tanks 1 that can be accommodated at the bend. However, when the chain conveyor bends upwards, even if the turning radius of track 4 remains unchanged, the turning radius of the chain conveyor, which is concentric with track 4, will inevitably increase, allowing for a greater number of culture tanks 1 to be placed at the bend. Therefore, it is necessary to calculate the number of culture tanks 1 required for different areas and then mark the areas on the culture tanks 1. For example, culture tanks 1 that need to be placed in area L are marked with "L".

[0105] The culture chambers 1 to be deployed in different areas will contain different culture media. For example, to meet environmental standards X, culture chambers 1 in area L will require culture media with a specific surface area of ​​less than 100㎡-500㎡ / m². 3The culture medium has a filling rate of 5%-15%; the culture chamber 1 in region M contains culture media with a specific surface area of ​​500㎡-800㎡ / m². 3 The culture medium has a filling rate of 15%-25%; the culture chamber 1 in region H contains a specific surface area of ​​800㎡-1000㎡ / m². 3 The culture carrier has a filling rate of 25%-35%. Correspondingly, the aeration rate of aeration device 3 is adjusted from zone L to zone H. For example, to meet environmental protection standards X, the aeration rate from zone L is adjusted to a theoretical dissolved oxygen of approximately 2.0-2.5 mg / L, while the aeration rate from zone H is adjusted to a theoretical dissolved oxygen of approximately 1.0-2.0 mg / L, ensuring a smooth transition of dissolved oxygen from zone L to zone H. In extreme cases, zone M can directly use the intermediate value of 2.0 mg / L. By controlling the aeration rate, specific surface area of ​​the culture carrier, and filling rate in stages, the dissolved oxygen gradient between the water and the biofilm on the culture carrier is synergistically optimized. This achieves nitrification in the aerobic zone, converting ammonia nitrogen to nitrate, and denitrification in the anoxic zone, converting nitrate to nitrogen gas, thus achieving efficient ammonia nitrogen removal. This allows different microorganisms to grow normally, maintaining good mass transfer and mixing effects. It can solve problems such as localized accumulation of packing material at the outlet causing system blockage, excessive biofilm growth, insufficient dissolved oxygen, and unstable ammonia nitrogen removal.

[0106] After the culture chamber 1 is placed in the tank, continuous monitoring is required for a certain period to obtain ammonia nitrogen data. If the data is not up to standard, adjustments can be made. The recovery operation is carried out through the first to fourth embodiments, making the entire set of equipment highly operable. If the current measures meet the environmental protection indicators, the adjusted parameters such as aeration rate, specific surface area, and filling rate are recorded and entered into the database. When the indicators need to be adjusted, only minor adjustments to the parameters are required to meet the requirements, reducing the burden on workers and providing a foundation for future intelligent production.

Claims

1. A purification system, characterized in that It includes cultivation units and delivery units; The cultivation unit includes a cultivation box and a cultivation carrier. The cultivation box includes an enclosure net and a frame that is connected horizontally and vertically. The enclosure net is fixed inside the frame and forms a cultivation space within the frame that allows only water and air to circulate. The cultivation space contains the cultivation carrier. The cultivation unit also includes an aeration device, which is located at the bottom of the cultivation unit and aerates the cultivation space. The delivery unit includes at least a crane, which is used to deliver the culture unit to a designated location within the pool; From the inlet to the outlet, the number of culture carriers loaded in the culture tank gradually increases, while the aeration rate of the aeration device gradually decreases. The delivery unit also includes a conveying device, which is set at the bottom of the pool. The conveying device includes a track and a drive mechanism. The culture box slides on the track under the drive mechanism. The drive mechanism is a chain conveyor; The culture unit also includes a shuttle assembly, which includes a support base, a main slide, a secondary slide, and a locking mechanism. The support base is hollow in the middle, and the culture box is detachably installed on the edge of the support base. The main and secondary slides are respectively located on the left and right sides of the support base, and the locking mechanism is located on the secondary slide. The locking mechanism includes at least an electromagnetic chuck and a magnetically attached plate, with the magnetically attached plate located at the bottom of the auxiliary slide. There are multiple electromagnetic chucks arranged in an array on the chain rod of the chain conveyor. When the electromagnetic chuck is working, the magnetically attached plate is attracted by magnetic force and moves closer to the electromagnetic chuck. When the magnetically attached plate is attached to the electromagnetic chuck, the shuttle assembly locks with the drive mechanism.

2. The purification system of claim 1, wherein, One end of the magnetic suction plate is hinged to the auxiliary slide, and the other end is a free end; The locking mechanism also includes a reset assembly, which includes a telescopic sleeve with a reset spring inside. One end of the telescopic sleeve is hinged to the auxiliary slide, and the other end is hinged to the magnetic suction plate near the middle.

3. The purification system of claim 1, wherein, It also includes a positioning unit, which includes a gantry frame, a lifting part, and a bearing part. There are multiple gantry frames, which are arranged on the left and right sides of the direction of movement of the conveying device. The bottom of the gantry frame is fixed to the bottom of the pool, and the top extends out of the pool. The supporting unit includes a gripper plate, a gripper, a power mechanism I, and a supporting frame. The edge of the supporting frame is provided with a slider A, which slides up and down within the gantry frame. The lifting unit is located at the top of the gantry frame and is used to drive the supporting frame to move up and down. A rotation shaft I is provided between the sliders A on the left and right sides. The gripper plate is fixed below the rotation shaft I, and the gripper is fixed on the gripper plate. The power mechanism I is used to drive the rotation shaft I to rotate, which causes the gripper to swing and pick up and put down the incubator.

4. The purification system of claim 2, wherein, The locking mechanism also includes a clamp, a mounting base, and a pull belt. The clamp is fixed on the chain rod of the chain conveyor, and the mounting base is set on the clamp. The mounting base is threadedly connected to the electromagnetic chuck, and the pull belt is clamped between the two. Two electromagnetic chucks form a group, and the two ends of the pull belt are respectively connected to the two electromagnetic chucks in the same group and the mounting base. The mounting base and / or clamps are made of non-metallic, non-magnetic materials, and the pull straps are made of flexible materials.

5. The purification system of claim 1, wherein, The delivery unit also includes a guiding device, which includes a lower frame, an upper frame, an electric slide rail mechanism, a rotating mechanism, and a rigging guiding mechanism. One end of the lower frame is connected to the top of the gantry frame, and the other end is fixed to the pool wall near the top of the pool. The slide rail of the electric slide rail mechanism is set at the top of the lower frame, and the upper frame is set on the slider B of the electric slide rail mechanism. The upper frame is equipped with a rotating mechanism, which includes at least a power mechanism II, a self-rotating shaft II, and a revolution support plate. The revolution support plate is L-shaped, with one end fixedly mounted on the rotation shaft II, and the other end connected to the rigging guide mechanism; The rigging guiding mechanism includes at least a guide head, which is truncated cone-shaped and has multiple inwardly recessed guide grooves on its side wall. The minimum width of the guide grooves is greater than the maximum width of the rigging.

6. The purification system of claim 5, wherein, The rigging guiding mechanism also includes a dome-shaped cover made of a soft material, which is placed on top of the guide head and covers the guide head, but keeps the guide groove unobstructed from top to bottom.

7. A purification method using the purification system according to claims 1-6, comprising: S1. Divide the pool into areas L, M, and H based on its shape and size parameters; S2. Plan the number of culture chambers required in different areas, then mark the areas on the culture chambers, and fill the culture space with an appropriate number of culture carriers according to the area markings; S3. Use the delivery unit to place the incubator into the designated area; S4. According to the different areas divided in step 1, control the aeration device to provide different aeration rates; S5. Obtain ammonia nitrogen data in the water. If the data does not meet expectations, proceed to S6. If the data meets expectations, the operation ends. S6. Recover the culture chambers that do not meet expectations, adjust the specific surface area of ​​the culture carrier in the recovered culture chambers, change the filling rate of the culture carrier in the culture chambers, increase the aeration rate in the area where the culture chamber is located, and change the dissolved oxygen parameter. S7. When the ammonia nitrogen data meets expectations, record the specific surface area, filling rate, and aeration rate of the culture carrier used in different areas of the pool. When the ammonia nitrogen data needs to be adjusted, adjust the above parameters accordingly.

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