Microbial immobilization carrier device

Abstract

This utility model discloses a microbial immobilization carrier device, specifically relating to the field of microbial immobilization technology. It includes a float with four aeration pipes fixedly connected to its bottom. Multiple carrier 1s and multiple carrier 2s are disposed on the outer surfaces of the aeration pipes. Carrier 1s and carrier 2s are movably connected. An installation block 1 is fixedly connected to the bottom of carrier 1, and an installation block 2 is fixedly connected to the bottom of carrier 2. An installation rod is movably connected internally to installation block 2 and installation block 1. A pull block is fixedly connected to the surface of the installation rod. This utility model, by optimizing the carrier connection structure, achieves rapid underwater replacement of the microbial immobilization carrier. When disassembly is required, the fixed rod is released by pulling the pull plate, and then the installation rod is pulled out from installation block 1 and installation block 2 as a whole using the pull block. This solves the problem of traditional devices requiring complete towing to shore for disassembly, significantly improving maintenance efficiency and reducing the risk of secondary pollution.

Description

Technical Field

[0001] This utility model relates to the field of microbial immobilization technology, and more specifically, to a microbial immobilization carrier device. Background Technology

[0002] Microbial immobilization carrier devices are composite systems that bind free microbial cells to specific carrier materials using physical or chemical methods, forming a high biomass concentration, high stability, and reusability. These devices are typically composed of porous carriers and possess characteristics such as large specific surface area, high mass transfer efficiency, and suitable mechanical strength. They can effectively protect microorganisms from environmental shocks while enhancing their metabolic activity and retention capacity. They are suitable for applications such as wastewater treatment, bio-fermentation, environmental remediation, and biosensing, enabling efficient utilization of microorganisms and continuous and stable operation of the process.

[0003] In water purification applications in wide water areas, when microbial immobilization carriers need to be replaced due to microbial inactivation, blockage, or damage, the entire device often needs to be dragged to the shore or platform for complete disassembly. This process is not only cumbersome and time-consuming, interrupting the purification function, but may also release deposited pollutants due to frequent disturbance of the water body.

[0004] In summary, in order to improve the operation and maintenance efficiency and economy of water purification projects in wide water areas and reduce secondary environmental risks, it is urgent to solve the technical bottleneck of modular design and rapid replacement of carriers in microbial immobilization carrier devices, so that the carriers can be replaced or partially maintained underwater, thereby ensuring the continuity and stability of the purification process, while adapting to the long-term treatment needs of complex and dynamic aquatic environments. Utility Model Content

[0005] The problem that this utility model provides for the microbial immobilization carrier device is to solve is that when the microbial immobilization carrier needs to be replaced due to microbial inactivation, blockage or damage in a wide water area, the entire device often needs to be dragged to the shore or platform for complete disassembly. This process is not only cumbersome and time-consuming, interrupting the purification function, but may also release deposited pollutants due to frequent disturbance of the water body.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a microbial immobilization carrier device, including a float, four aeration pipes fixedly connected to the bottom of the float, multiple carrier 1s and multiple carrier 2s arranged on the outer surface of the aeration pipes, carrier 1s and carrier 2s being movably connected, mounting block 1 fixedly connected to the bottom of carrier 1s, mounting block 2 fixedly connected to the bottom of carrier 2s, mounting rod movably connected to the interior of mounting block 2s and mounting block 1s, pull block fixedly connected to the surface of the mounting rod, fixing rod movably connected to the interior of mounting block 2s, fixing rod movably connected to the mounting rod, pull plate fixedly connected to the surface of the fixing rod, and auxiliary components arranged on the top of carrier 1s and carrier 2s, the auxiliary components enabling carrier 1s and carrier 2s to be quickly positioned and spliced.

[0007] In a preferred embodiment, the auxiliary component includes a first limiting ring fixed on a first carrier, a second limiting ring fixed on a second carrier, and an insert fixed on the second limiting ring, wherein the insert is slidably connected to the first limiting ring.

[0008] In a preferred embodiment, the surfaces of carrier one and carrier two are provided with multiple holes, and the interiors of carrier one and carrier two contain micropores.

[0009] In a preferred embodiment, a plurality of positioning rings are fixedly connected to the outer surface of the aeration pipe, and the positioning rings are movably connected to mounting hole one and mounting block two.

[0010] In a preferred embodiment, multiple partitions are provided inside carrier one and carrier two, and multiple holes are provided on the surface of the partitions.

[0011] In a preferred embodiment, rotating plates are fixedly connected to the surfaces of carrier one and carrier two, and a connecting rod is fixedly connected to the bottom of the aeration pipe.

[0012] In a preferred embodiment, a pressure block is provided on the outer surface of the connecting rod, and a float plate is provided on the outer surface of the float rod.

[0013] In a preferred embodiment, a fan is fixedly connected to the top of the floating plate, and a protective cover is fixedly connected to the outer surface of the fan.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention optimizes the carrier connection structure, enabling rapid underwater replacement of microbial immobilization carriers. When disassembly is required, the locking rod is released by pulling the pull plate, and the installation rod is then pulled out from installation block one and installation block two as a whole using the pull block. This allows carrier one and carrier two to be separated from the aeration pipe, effectively solving the problems of cumbersome process, purification interruption, water disturbance, and release of sediment pollutants caused by the traditional device requiring to be dragged to the shore for disassembly. It significantly improves maintenance efficiency and reduces the risk of secondary pollution. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the carrier structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the lower cross-sectional structure of this utility model.

[0019] Figure 4 This is a side sectional view of the present invention.

[0020] Figure 5 This is a schematic diagram of the front cross-section structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Floating rod; 2. Aeration pipe; 3. Carrier 1; 4. Carrier 2; 5. Mounting block 1; 6. Mounting block 2; 7. Mounting rod; 8. Pulling block; 9. Fixing rod; 10. Pulling plate; 11. Positioning ring; 12. Limiting ring 1; 13. Limiting ring 2; 14. Partition plate; 15. Connecting rod; 16. Floating plate; 17. Pressing block; 18. Fan; 19. Protective cover; 20. Rotary plate; 21. Inserting block. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Microbial immobilization carrier devices are a composite technology system that efficiently binds free microbial cells to the surface and interior of porous carrier materials through physical adsorption, embedding, or chemical cross-linking. Its core lies in constructing a micro-ecological environment with high bioload, strong structural stability, and reusability. The carrier typically uses materials such as sodium alginate, polyacrylamide, activated carbon, or novel polymer gels, which are precisely processed to form a multi-level porous structure (including macropores, mesopores, and micropores), significantly increasing the specific surface area and providing ample attachment sites for microorganisms. This design not only ensures the enrichment concentration of microorganisms within the carrier but also effectively buffers environmental stresses such as water temperature fluctuations, pH changes, and toxic substance impacts through the protective effect of the carrier material, significantly enhancing microbial metabolic activity and retention capacity. This technology is widely used in wastewater treatment, bioreactors, environmental remediation, and biosensors, enabling continuous, stable, and efficient operation of microbial processes.

[0024] In water purification applications in wide water bodies such as lakes, reservoirs, and rivers, microbial immobilization technology faces unique challenges: large water areas, complex hydrological conditions (such as wind, waves, and changes in flow velocity), and uneven distribution and low concentrations of pollutants. Traditional immobilization carrier devices often employ rigid fixation or integral structures, with the carrier and device frame permanently connected by welding, bolting, or gluing. When the carrier experiences microbial inactivation (e.g., biofilm aging), pore blockage (caused by suspended solids, biofouling, or algae), or physical damage (due to water flow impact, ice abrasion, etc.) due to long-term use, overall maintenance of the device is required. During operation, the device, weighing tens to hundreds of kilograms, must be towed to the shore or work platform using the lifting equipment of the work vessel, undergoing processes such as hoisting, transportation, disassembly, replacement, and reassembly. This process not only interrupts purification operations (downtime can reach several days to several weeks), causing breaks in the water purification cycle, but also may release deposited nitrogen and phosphorus nutrients, heavy metals, and organic pollutants due to the violent disturbance of the bottom sediment during hoisting and movement, posing a risk of secondary pollution.

[0025] To address the aforementioned problems, this invention breaks through the limitations of traditional integral structures and proposes a modular, quickly detachable carrier connection scheme. The core of the device includes a float, an aeration pipe, and dual-unit carriers (Carrier One and Carrier Two). The carriers are mechanically connected through a plug-in structure of mounting blocks, mounting rods, and fixing rods. Specifically, mounting block One is fixed to the bottom of Carrier One, and mounting block Two is fixed to the bottom of Carrier Two. Both are initially positioned by inserting a shared mounting rod, and then locked in place by a laterally inserted fixing rod. This design allows individual carrier modules to be independently assembled and disassembled without moving the overall frame. More importantly, the carriers and aeration pipes are slidably connected via positioning rings, avoiding the fixation problems associated with welding or gluing. Auxiliary positioning components (limiting ring one, limiting ring two, and plugs) ensure precise alignment during carrier assembly, preventing misalignment or tilting. All connecting parts (mounting rods and fixing rods) are coated with a high-performance anti-slip coating (such as fluororubber or polyurethane-based composite materials), which enhances the coefficient of friction to prevent slippage during operation and resists water corrosion and UV aging.

[0026] When a specific carrier unit needs to be replaced, operators only need to approach the device in a small workboat, lift the float to bring the target part out of the water (no lifting equipment required), and directly locate the faulty carrier. The fixing rod can be pulled out by pulling the pull plate outwards, releasing the lateral constraint of the mounting rod; then, the mounting rod can be pulled away from mounting blocks one and two as a whole by pulling the blocks, allowing carrier one and carrier two to be removed from the aeration pipe as independent modules. When installing a new carrier, simply align its mounting block with the positioning ring of the aeration pipe, insert the mounting rod, and push in the fixing rod to complete the locking. The entire process can be completed on a water platform or ship deck, reducing the time from several days in the traditional method to hours, without interrupting the purification function of other carrier units. The guiding design of the limiting ring and the insert block improves the fault tolerance of the splicing, allowing for quick alignment even in swaying water conditions.

[0027] This invention achieves convenient maintenance without sacrificing purification performance. Both carrier one and carrier two have millimeter-sized pores on their surfaces, while the interior features a micron-sized microporous network, forming multi-level mass transfer channels: large pores promote water flow and pollutant diffusion, while micropores enhance microbial attachment and nutrient adsorption. Perforated baffles are installed inside the carriers, strengthening mechanical strength and guiding water flow through the carriers, increasing pollutant contact time. The swirl plate design on the carrier surface utilizes hydrodynamics to drive the carriers to rotate slowly, preventing localized blockages and promoting uniform biofilm renewal. The connecting rod and pressure block at the bottom of the aeration pipe form a counterweight system, lowering the device's center of gravity and improving stability against wind and waves. The floats and float plates provide adaptive buoyancy, ensuring the aeration end is always at the optimal water depth.

[0028] To enhance overall efficiency, the device integrates a high-efficiency oxygen supply system: a sealed blower with a protective cover is installed on top of the float plate, connected to the aeration pipe via a pressure-resistant hose, continuously supplying air to the microorganisms. The protective cover effectively prevents water splashing, algae growth, or debris clogging the blower impeller, ensuring long-term continuous operation of the equipment. The positioning ring on the outer wall of the aeration pipe not only serves as a carrier positioning function but also optimizes the bubble release path, improving oxygen transfer efficiency. All structural components are made of corrosion-resistant materials with a design life exceeding 10 years. The modular design also allows for flexible adjustment of the carrier type (such as denitrification and phosphorus removal bacterial agent carriers) according to changes in water quality, enhancing technical adaptability.

[0029] This invention, through its detachable modular design, successfully addresses the core pain point of difficult carrier replacement in the purification of large bodies of water, achieving a "partial maintenance, overall uninterrupted operation" mode. Compared to traditional methods, it improves maintenance efficiency, reduces operating costs, and significantly reduces the risk of secondary pollution caused by sediment disturbance. This device is particularly suitable for scenarios such as eutrophication treatment of large lakes, reservoir water source protection, and river ecological restoration. It has already been applied in several demonstration projects in China (such as the Taihu Lake Basin and Dianchi Lake treatment projects), with actual measurements showing that carrier replacement time is controlled within 2 hours. In the future, it can be further integrated with IoT monitoring (such as real-time monitoring of biofilm activity using sensors built into the carrier) to promote the intelligent and refined development of water purification.

[0030] Refer to the instruction manual appendix Figures 1 to 5 The microbial immobilization carrier device includes a float 1, four aeration pipes 2 fixedly connected to the bottom of the float 1, multiple carriers 3 on the outer surface of the aeration pipes 2, multiple carriers 4 on the outer surface of the aeration pipes 2, carriers 3 and carriers 4 being movably connected, mounting blocks 5 fixedly connected to the bottom of carriers 3, mounting blocks 6 fixedly connected to the bottom of carriers 4, mounting rods 7 being movably connected inside mounting blocks 6 and mounting blocks 5, pull blocks 8 being fixedly connected to the surface of mounting rods 7, fixing rods 9 being movably connected inside mounting blocks 6, fixing rods 9 being movably connected to mounting rods 7, and pull plates 10 being fixedly connected to the surface of fixing rods 9. Auxiliary components are provided on the top of carriers 3 and carriers 4, which enable carriers 3 and carriers 4 to be quickly positioned and spliced.

[0031] It should be noted that when disassembly and replacement are required, the operator can lift the float 1 upwards to raise the device part out of the water, thereby quickly locating the carrier 3 and carrier 4 that need to be replaced. By pulling the pull plate 10 outwards, the fixing rod 9 can be pulled out, releasing the lock on the mounting rod 7. Then, the mounting rod 7 can be pulled out from the mounting block 5 and mounting block 6 as a whole by pulling the block 8, so that the carrier 3 and carrier 4 can be separated from the aeration pipe 2, achieving quick disassembly. When replacing, the mounting rod 7 is inserted into the new carrier 3 and carrier 4 and the fixing rod 9 is pushed in to complete the fixation. The inserts 21 on the limiting ring 12 and limiting ring 13 can achieve quick positioning during installation, ensuring accurate carrier splicing. The anti-slip coating on the surface of the fixing rod 9 and the mounting rod 7 can enhance friction, prevent slippage during operation, and improve the reliability and safety of operation.

[0032] It is worth noting that the anti-slip coating on the surfaces of the fixing rod 9 and the mounting rod 7 is made of a rubber-based composite material with a high coefficient of friction. This coating not only effectively increases the friction between the hand and the rod during operation, preventing slippage caused by water lubrication or wet gloves, but also has corrosion-resistant and anti-aging properties, and can withstand long-term immersion in aquatic environments and chemical corrosion.

[0033] Refer to the instruction manual appendix Figure 2 The auxiliary components include a limiting ring 12 fixed on the carrier 3, a limiting ring 13 fixed on the carrier 4, and an insert 21 fixed on the limiting ring 13. The insert 21 is slidably connected to the limiting ring 12.

[0034] It should be noted that the auxiliary components, through the plug-in structure of limiting ring 12 and limiting ring 23, provide preliminary physical positioning and guidance when carrier 13 and carrier 24 are spliced, ensuring that the two can be quickly and accurately aligned, and can maintain relative stability under the impact of water flow, thus avoiding misalignment or detachment of the carriers.

[0035] Refer to the instruction manual appendix Figure 2 The surfaces of carrier 1 3 and carrier 2 4 are provided with multiple holes, and the interiors of carrier 1 3 and carrier 2 4 contain micropores.

[0036] It should be noted that the multiple pores on the surfaces of carrier 1 (3) and carrier 2 (4) can increase the contact area between the carrier and pollutants, improve the efficiency of microbial attachment and pollutant degradation, and further expand the specific surface area of ​​the internal microporous structure, providing more growth and habitat space for microorganisms. At the same time, it enhances the adsorption capacity of nutrients in the water, which is conducive to the stability and function of the microbial community.

[0037] Refer to the instruction manual appendix Figure 2 Multiple positioning rings 11 are fixedly connected to the outer surface of the aeration pipe 2, and the positioning rings 11 are movably connected to the mounting hole 1 and the mounting block 2 6.

[0038] It should be noted that the positioning ring 11 helps determine the installation positions of carrier 1 3 and carrier 2 4, and also serves as a limit.

[0039] Refer to the instruction manual appendix Figure 4 Multiple partitions 14 are provided inside the carrier 1 3 and the carrier 2 4, and multiple holes are provided on the surface of the partitions 14.

[0040] It should be noted that the porous structure on the surface of the partition 14 facilitates the flow and diffusion of water and nutrients within the carrier, ensuring uniform distribution of microorganisms and improving overall purification efficiency.

[0041] Refer to the instruction manual appendix Figure 3 A rotating plate 20 is fixedly connected to the surface of carrier 3 and carrier 4, and a connecting rod 15 is fixedly connected to the bottom of aeration pipe 2.

[0042] It should be noted that the rotating plate 20 fixedly connected to the surface of the carrier can be used to make the carrier rotate slowly by means of water flow, which enhances the contact efficiency between the carrier surface and the water body, avoids local blockage and promotes biofilm renewal. The connecting rod 15 at the bottom of the aeration pipe 2 is used to fix and support the lower structure, and improves the overall stability of the device in dynamic aquatic environment.

[0043] Refer to the instruction manual appendix Figure 1 The outer surface of the connecting rod 15 is provided with a pressure block 17, and the outer surface of the float rod 1 is provided with a float plate 16.

[0044] It should be noted that the pressure block 17 on the outer surface of the connecting rod 15 can lower the center of gravity of the device, enhance its resistance to wind and waves, and prevent the device from overturning. The float plate 16 on the outer surface of the float rod 1 provides the main buoyancy, ensuring that the device always floats at a predetermined depth on the water surface and adapts to different water level changes.

[0045] Refer to the instruction manual appendix Figure 1 A fan 18 is fixedly connected to the top of the floating plate 16, and a protective cover 19 is fixedly connected to the outer surface of the fan 18.

[0046] It should be noted that the blower 18 fixedly installed on the top of the floating plate 16 can provide the necessary oxygen to the microorganisms through the aeration pipe 2, enhance the activity of aerobic microorganisms, improve the degradation efficiency of pollutants, and the protective cover 19 can prevent water from splashing in or debris from clogging the blower 18, ensuring its long-term stable operation and extending the service life of the equipment.

[0047] Working principle: When disassembly and replacement are required, the operator can lift the floating rod 1 upwards to raise the device part out of the water, quickly locate the carrier 1 3 and carrier 2 4 to be replaced, pull out the fixing rod 9 by pulling the pull plate 10 outwards to release the locking of the mounting rod 7, and then pull the mounting rod 7 out of the mounting block 1 5 and mounting block 2 6 as a whole by pulling the block 8, so as to realize the quick separation of the carrier module from the aeration pipe 2; when replacing, simply align the mounting block of the new carrier with the aeration pipe 2, insert the mounting rod 7 and push in the fixing rod 9 to complete the fixation. The insert block 21 on the limiting ring 1 12 and the limiting ring 2 13 can realize quick positioning and stable splicing. The anti-slip coating on the surface of the fixing rod 9 and the mounting rod 7 effectively prevents slippage during operation, improving safety and reliability. The porous structure on the carrier surface and the internal microporous layer significantly increase the specific surface area, enhancing pollutant adsorption capacity and microbial attachment efficiency. The pores in the internal baffle 14 promote water flow and uniform distribution of microorganisms. The outer positioning ring 11 of the aeration pipe 2 ensures the carrier's installation accuracy, and the surface rotating plate 20 uses water flow to propel the carrier to rotate, preventing blockage. The bottom connecting rod 15 and the pressure block 17 enhance overall stability and resistance to wind and waves. The float 1 provides constant buoyancy through the float plate 16, and the top fan 18 supplies oxygen to the microorganisms through the aeration pipe 2. The protective cover 19 prevents debris from entering, all working together to ensure the device operates continuously and efficiently in wide water areas, achieving maintainability and long-term effectiveness of the microbial purification function.

[0048] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A microorganism immobilization carrier device, characterized by: The system includes a float (1), four aeration pipes (2) are fixedly connected to the bottom of the float (1), multiple carriers (3) are provided on the outer surface of the aeration pipes (2), multiple carriers (4) are provided on the outer surface of the aeration pipes (2), carriers (3) and carriers (4) are movably connected, a mounting block (5) is fixedly connected to the bottom of the carrier (3), a mounting block (6) is fixedly connected to the bottom of the carrier (4), a mounting rod (7) is movably connected inside the mounting block (6) and the mounting block (5), a pull block (8) is fixedly connected to the surface of the mounting rod (7), a fixing rod (9) is movably connected inside the mounting block (6), the fixing rod (9) is movably connected to the mounting rod (7), a pull plate (10) is fixedly connected to the surface of the fixing rod (9), and an auxiliary component is provided on the top of the carriers (3) and the carriers (4) to enable the carriers (3) and the carriers (4) to be quickly positioned and spliced.

2. The microbial immobilization carrier device according to claim 1, characterized by: The auxiliary components include a limiting ring 1 (12) fixed on carrier 1 (3), a limiting ring 2 (13) fixed on carrier 2 (4), and an insert block (21) fixed on limiting ring 2 (13). The insert block (21) is slidably connected to the limiting ring 1 (12).

3. The microbial immobilization carrier device according to claim 1, characterized in that: Multiple holes are provided on the surface of carrier one (3) and carrier two (4), and micropores exist inside carrier one (3) and carrier two (4).

4. The microbial immobilization carrier device according to claim 1, characterized in that: Multiple positioning rings (11) are fixedly connected to the outer surface of the aeration pipe (2), and the positioning rings (11) are movably connected to the mounting hole one and the mounting block two (6).

5. The microbial immobilization carrier device according to claim 3, characterized in that: Multiple partitions (14) are provided inside the carrier one (3) and the carrier two (4), and multiple holes are provided on the surface of the partitions (14).

6. The microbial immobilization carrier device according to claim 5, characterized in that: Rotary plates (20) are fixedly connected to the surfaces of carrier 1 (3) and carrier 2 (4), and a connecting rod (15) is fixedly connected to the bottom of aeration pipe (2).

7. The microbial immobilization carrier device according to claim 6, characterized in that: The outer surface of the connecting rod (15) is provided with a pressure block (17), and the outer surface of the float (1) is provided with a float plate (16).

8. The microbial immobilization carrier device according to claim 7, characterized in that: A fan (18) is fixedly connected to the top of the floating plate (16), and a protective cover (19) is fixedly connected to the outer surface of the fan (18).

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