Airlift integrated device based on anaerobic ammonia oxidation process

Abstract

The invention discloses an air-lift integrated device based on an anaerobic ammonia oxidation process, and relates to the technical field of sewage treatment, the air-lift integrated device comprises a reaction container, the top of the reaction container is provided with a top cover, a stirring mechanism is arranged above the top cover, and the outer surface of the reaction container is fixedly provided with a water pump 1. By arranging the aeration assembly, gas can escape in the form of tiny bubbles, the gas-liquid contact area is greatly increased, by arranging the stirring mechanism, the bubbles generated by the aeration assembly can be further crushed and dispersed, meanwhile, the bubbles can be guided to spirally rise in the reaction container, and the gas-liquid separation effect is improved. The aeration assembly and the stirring mechanism are matched for use, so that the contact time of bubbles and liquid can be remarkably prolonged, the oxygen transmission efficiency is greatly improved, anaerobic ammonia oxidizing bacteria can take in oxygen more sufficiently to react with a substrate, and the sewage denitrification treatment efficiency and quality can be effectively improved; and the treated sewage is ensured to be stably discharged up to the standard.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to an integrated gas lift device based on an anaerobic ammonium oxidation process. Background Art

[0002] With increasingly stringent environmental standards and the continued increase in demand for water resource reuse, efficient treatment of ammonia nitrogen pollutants in sewage has become a key task. Sewage treatment technology based on anaerobic ammonia oxidation process has attracted much attention due to its unique autotrophic denitrification advantage. This process does not require an organic carbon source and can directly convert ammonia nitrogen and nitrite into nitrogen gas, greatly reducing energy consumption and sludge production, which is in line with the concept of sustainable development. However, the existing equipment based on this process has limitations in actual operation, which affects the full utilization of the treatment efficiency.

[0003] Traditional devices mostly use conventional straight-cylinder or simple-structured air lift components in the aeration stage, which causes the rising path of the bubbles in the liquid to be short and straight. This leads to a short contact time between the bubbles and the liquid and insufficient oxygen transfer, which limits the effective utilization of the substrate by anaerobic ammonia-oxidizing bacteria, thereby affecting the denitrification efficiency. In addition, short-term contact can easily cause unbalanced local reactions, resulting in significant differences in treatment effects in different areas of the device and poor overall stability. Summary of the invention

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide an integrated gas lift device based on the anaerobic ammonium oxidation process.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an integrated gas lift device based on an anaerobic ammonia oxidation process, comprising a reaction container, a top cover is arranged on the top of the reaction container, a stirring mechanism is arranged above the top cover, a water pump 1 is fixedly installed on the outer surface of the reaction container, a water inlet pipe 1 is fixedly connected to the interior of the water pump 1, and the end of the water inlet pipe 1 away from the water pump 1 is connected to a sewage pool, a water inlet pipe 2 is fixedly connected to the interior of the water pump 1, and the end of the water inlet pipe 2 away from the water pump 1 is fixedly connected to the interior of the reaction container, a water pump 2 is fixedly installed on the outer surface of the reaction container, a drain pipe 1 is fixedly connected to the interior of the water pump 2, and the end of the drain pipe 1 away from the water pump 2 is connected to a collecting tank, a drain pipe 2 is fixedly connected to the interior of the water pump 2, and the end of the drain pipe 2 away from the water pump 2 is fixedly connected to the interior of the reaction container, and an aeration component is arranged inside the reaction container.

[0006] Furthermore, the aeration assembly includes an aerator fixedly mounted on the outer surface of the reaction container, the interior of the aerator is fixedly connected to a gas pipeline, and the gas pipeline runs through the interior of the reaction container, and one end of the gas pipeline away from the aerator is fixedly connected to an aeration plate.

[0007] Furthermore, the stirring mechanism includes a motor fixedly mounted on the top of the top cover, and an output end of the motor is fixedly connected to a driving wheel.

[0008] Furthermore, a transmission belt is provided on the outer surface of the driving wheel, a driven wheel is provided on the left side of the driving wheel, and the driving wheel and the driven wheel are connected by a transmission belt.

[0009] Furthermore, a rotating shaft is fixedly connected to the bottom surface of the driven wheel, and the rotating shaft rotates with the top cover, and a breaking rod is fixedly connected to the outer surface of the rotating shaft.

[0010] Furthermore, an end of the rotating shaft away from the driven wheel is fixedly connected to an air induced plate, an upper surface of the air induced plate is provided with air induced holes, and the air induced holes penetrate to the bottom surface of the air induced plate.

[0011] Compared with the existing technology, the integrated gas lift device based on anaerobic ammonia oxidation process has the following beneficial effects: The present invention can make the gas escape in the form of tiny bubbles by arranging an aeration component, thereby greatly increasing the gas-liquid contact area; by arranging a stirring mechanism, the bubbles generated by the aeration component can be further broken up and dispersed, and at the same time, the bubbles can be guided to spiral upward in the reaction container; through the cooperation between the aeration component and the stirring mechanism, the contact time between the bubbles and the liquid can be significantly prolonged, and the oxygen transfer efficiency is greatly improved, so that the anaerobic ammonia oxidizing bacteria can more fully absorb oxygen to react with the substrate, thereby effectively improving the efficiency and quality of sewage denitrification treatment, and ensuring that the treated sewage is stably discharged up to standard.

[0012] The present invention starts the motor through an external controller to drive the driving wheel to rotate. At this time, the driven wheel, the rotating shaft, the breaking rod and the air entraining disk can be driven to rotate through the transmission belt. At this time, the rotating breaking rod can stir the liquid, thereby accelerating the flow rate of the liquid, thereby enhancing the mixing degree and mass transfer efficiency of the substances in the reaction system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional front view structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the stirring mechanism of the present invention.

[0014] In the figure: 1. reaction vessel; 2. top cover; 3. stirring mechanism; 301. motor; 302. driving wheel; 303. transmission belt; 304. driven wheel; 305. rotating shaft; 306. beating rod; 307. air duct; 308. air duct hole; 4. water pump 1; 5. water inlet pipe 1; 6. water inlet pipe 2; 7. water pump 2; 8. drain pipe 1; 9. drain pipe 2; 10. aeration assembly; 1001. aerator; 1002. gas pipeline; 1003. aeration plate. DETAILED DESCRIPTION

[0015] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0016] The present embodiment provides an integrated gas lift device based on the anaerobic ammonium oxidation process. By providing an aeration component 10, the present invention can make the gas escape in the form of tiny bubbles, greatly increasing the gas-liquid contact area. By providing a stirring mechanism 3, the bubbles generated by the aeration component 10 can be further broken up and dispersed, and at the same time, the bubbles can be guided to spirally rise in the reaction container 1. By the mutual cooperation between the aeration component 10 and the stirring mechanism 3, the contact time between the bubbles and the liquid can be significantly prolonged, and the oxygen transfer efficiency is greatly improved, so that the anaerobic ammonium oxidation bacteria can more fully absorb oxygen to react with the substrate, thereby effectively improving the efficiency and quality of sewage denitrification treatment, and ensuring that the treated sewage is stably discharged in compliance with the standards.

[0017] See also Figures 1 to 4 An integrated gas lift device based on anaerobic ammonia oxidation process includes a reaction vessel 1, which is made of high-strength and corrosion-resistant stainless steel, has an outer square and inner round structure, has a spacious internal space and a smooth wall, effectively avoids the accumulation of impurities on the wall, and is conducive to the smooth flow of sewage and the reaction.

[0018] A top cover 2 is arranged on the top of the reaction container 1. The top cover 2 is made of chemically resistant engineering plastics, is light in texture and has good sealing performance, and can prevent gas from escaping and external impurities from invading during the reaction process.

[0019] A water pump 4 is firmly fixed on the outer surface of the reaction container 1. The water pump 4 is a centrifugal pump with high head and large flow rate, which has stable and reliable performance, strong power, and can accurately control the sewage delivery volume and flow rate.

[0020] The interior of the water pump 4 is tightly fixed and connected with a water inlet pipe 5, which is a wear-resistant and anti-aging PVC pipe. Its diameter is reasonably designed according to the sewage flow rate to ensure efficient sewage transportation, and the end of the water inlet pipe 5 away from the water pump 4 is accurately connected to the sewage pool to ensure the stable introduction of sewage source.

[0021] The interior of the water pump 4 is also fixedly connected to an inlet pipe 6. The inlet pipe 6 adopts a special tapered structure and is made of the same material as the inlet pipe 5. Its tapered design can increase the flow rate and impact force of sewage when it enters the reaction vessel 1, promote rapid mixing of sewage and reaction medium, and the end of the inlet pipe 6 away from the water pump 4 is perfectly fixedly connected to the interior of the reaction vessel 1, optimizing the sewage inflow angle and distribution.

[0022] A water pump 2 7 is also fixedly installed on the outer surface of the reaction container 1. The water pump 2 7 has similar specifications and matching performance to the water pump 1 4, and they work together to achieve precise control of the water flow in the device.

[0023] The interior of the water pump 27 is fixedly connected to a drain pipe 8, which is a stainless steel pipe with a smooth inner wall and a moderate diameter, and can quickly discharge the treated sewage. The end away from the water pump 27 is accurately connected to the collection tank to ensure the effective collection and subsequent utilization or discharge of purified water.

[0024] The interior of the water pump 27 is also fixedly connected with a drain pipe 29, which is made of the same material as the drain pipe 18, and the end away from the water pump 27 is scientifically fixedly connected to the interior of the reaction container 1 to maintain the liquid level in the device stable and prevent backflow and blockage.

[0025] The interior of the reaction container 1 is carefully provided with an aeration assembly 10, which is a key structure for providing sufficient oxygen for the sewage and promoting the reaction.

[0026] The aeration assembly 10 includes an aerator 1001 firmly fixed on the outer surface of the reaction container 1. The aerator 1001 adopts advanced microporous aeration technology, has a high-strength engineering plastic shell, and has a built-in precision aeration membrane, which can generate uniform micro bubbles and achieve efficient oxygen transfer.

[0027] The interior of the aerator 1001 is precisely fixedly connected to a gas pipeline 1002, which is a pressure-resistant and corrosion-resistant rubber hose with good flexibility and can flexibly adapt to the internal layout of the device. It runs through the interior of the reaction container 1 to strictly ensure stable gas delivery without leakage risk.

[0028] One end of the gas transmission pipeline 1002 away from the aerator 1001 is firmly fixed and connected to an aeration plate 1003. The aeration plate 1003 is disc-shaped, and the disc surface is evenly and densely covered with tiny aeration holes. The hole diameter is finely controlled. Its special distribution and angle design disperse the gas into countless tiny bubbles that rise vertically, thereby expanding the gas-liquid contact area and improving the oxygen dissolution efficiency.

[0029] A stirring mechanism 3 is provided above the top cover 2, and the stirring mechanism 3 is the core power component of the whole device, driving various components to operate in coordination.

[0030] The stirring mechanism 3 includes a motor 301 firmly fixed on the top of the top cover 2. The motor 301 is a highly efficient and energy-saving variable-frequency speed-regulating motor with a power adapter device. It can flexibly adjust the speed according to the processing conditions to ensure stable power output.

[0031] The output end of the motor 301 is tightly and fixedly connected with the driving wheel 302. The driving wheel 302 is made of metal, and its surface is hardened, so it has strong wear resistance and high transmission accuracy. The outer surface of the driving wheel 302 is precisely provided with a transmission belt 303. The transmission belt 303 is made of high-strength rubber material, and the tooth design tightly meshes with the gears, with a transmission efficiency of over 95%, ensuring smooth and lossless transmission of power. The left side of the driving wheel 302 is reasonably provided with a driven wheel 304. The driven wheel 304 and the driving wheel 302 match each other in specifications and operate in coordination. The driving wheel 302 and the driven wheel 304 are reliably connected through the transmission belt 303 to achieve precise speed ratio control.

[0032] The bottom surface of the driven wheel 304 is firmly fixedly connected with a rotating shaft 305. The rotating shaft 305 is made of stainless steel with a high-precision polished surface. It has high strength, wear resistance, and smooth rotation. It cooperates closely with the special bearing of the top cover 2 to achieve stable rotation and effectively reduce friction loss and noise.

[0033] The outer surface of the rotating shaft 305 is firmly fixedly connected with a breaking rod 306, which can be designed as a spiral metal rod with fine protrusions and grooves on the surface. When rotating at high speed, it can strongly break bubbles and disperse airflow, enhance gas-liquid mixing, and improve reaction uniformity and efficiency.

[0034] One end of the rotating shaft 305 away from the driven wheel 304 is firmly fixedly connected with an air entrainment disk 307. The air entrainment disk 307 is a special stainless steel disc. The curvature of the disc surface and the layout of the air entrainment holes 308 are optimized through fluid mechanics. The upper surface of the air entrainment disk 307 is carefully opened with air entrainment holes 308. The air entrainment holes 308 are arranged in a spiral, with a larger aperture at the top and a smaller aperture at the bottom, which guides the bubbles to spiral upward, prolongs the stroke and contact time, strengthens the gas-liquid mass transfer effect, creates favorable conditions for the anaerobic ammonia oxidation reaction, and promotes the device to efficiently treat sewage and achieve the purification goal.

[0035] Working principle: When the present invention is working, sewage is first transported from the sewage pool to the inside of the reaction container 1 through the water inlet pipe 1 5 and the water inlet pipe 2 6. At the same time, the external controller starts the aerator 1001 in the aeration component 10, and the air is transmitted to the aeration plate 1003 through the gas pipeline 1002 under pressure. The aeration plate 1003, with its special structure, disperses the gas into a large number of tiny bubbles and releases them into the sewage, greatly expanding the gas-liquid contact area and creating a good start for oxygen to be integrated into the sewage. At the same time, the stirring mechanism 3 The motor 301 is driven to start, and the motor 301 drives the driving wheel 302 to rotate. With the transmission efficiency of the transmission belt 303, the driven wheel 304 rotates with it, and then drives the rotating shaft 305 connected thereto to rotate. The breaking rod 306 installed on the rotating shaft 305 rotates at a high speed, and the bubbles generated by aeration are strongly broken, so that they are further refined and dispersed, and the bubbles are effectively prevented from aggregating and floating, and their residence time in the sewage is prolonged. The air-inducing disc 307 rotates synchronously under the drive of the rotating shaft 305, and the bubbles pass through the air-inducing holes 308 upward, and the air-inducing disc 307 is cleverly driven by the rotating shaft 305. The bubbles are guided to rise in a spiral. This spiral rise path significantly lengthens the travel of the bubbles in the sewage, deeply strengthens the gas-liquid contact effect, promotes oxygen to dissolve into the sewage more efficiently, and provides sufficient reaction substrates for anaerobic ammonia oxidizing bacteria. With the continuous operation of the stirring mechanism 3, the violent stirring of the liquid by the breaking rod 306 accelerates the liquid flow rate, and effectively promotes the circulation of the sewage in the reaction container 1. This rapid flow not only makes the various parts of the sewage fully mixed, eliminates concentration differences and stratification phenomena, and ensures uniform distribution of the substrate; it also greatly improves the material transfer efficiency, accelerates the contact frequency and reaction rate of anaerobic ammonia oxidizing bacteria with the substrate and oxygen. After the above series of synergistic reactions, the ammonia nitrogen in the sewage is converted into harmless substances such as nitrogen under the action of anaerobic ammonia oxidizing bacteria, realizing efficient denitrification treatment. Finally, the treated water that meets the standards is discharged into the collection pool in an orderly manner through the drainage pipe 1 8 and the drainage pipe 2 9, achieving the sewage purification goal. The various components of the whole process work closely together and are linked together to ensure the stable and efficient operation of the device, effectively improve the quality and efficiency of sewage treatment, and meet environmental protection needs.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated gaslift device based on an anaerobic ammonium oxidation process, comprising a reaction vessel (1), characterized in that: The top of the reaction container (1) is provided with a top cover (2), and a stirring mechanism (3) is provided above the top cover (2). A water pump (4) is fixedly installed on the outer surface of the reaction container (1). The interior of the water pump (4) is fixedly connected with a water inlet pipe (5), and the end of the water inlet pipe (5) away from the water pump (4) is connected to the sewage pool. The interior of the water pump (4) is fixedly connected with a water inlet pipe (6), and the end of the water inlet pipe (6) away from the water pump (4) is connected to the reaction container (1). ), a water pump 2 (7) is fixedly installed on the outer surface of the reaction container (1), a drainage pipe 1 (8) is fixedly connected to the interior of the water pump 2 (7), and one end of the drainage pipe 1 (8) away from the water pump 2 (7) is connected to the collection tank, a drainage pipe 2 (9) is fixedly connected to the interior of the water pump 2 (7), and one end of the drainage pipe 2 (9) away from the water pump 2 (7) is fixedly connected to the interior of the reaction container (1), and an aeration component (10) is arranged inside the reaction container (1).

2. The integrated gas lift device based on anaerobic ammonium oxidation process according to claim 1, characterized in that: The aeration assembly (10) comprises an aerator (1001) fixedly mounted on the outer surface of a reaction vessel (1); the interior of the aerator (1001) is fixedly connected to a gas pipeline (1002), and the gas pipeline (1002) runs through the interior of the reaction vessel (1); an end of the gas pipeline (1002) away from the aerator (1001) is fixedly connected to an aeration plate (1003).

3. The integrated gas lift device based on anaerobic ammonium oxidation process according to claim 1, characterized in that: The stirring mechanism (3) comprises a motor (301) fixedly mounted on the top of the top cover (2), and an output end of the motor (301) is fixedly connected to a driving wheel (302).

4. The integrated gas lift device based on anaerobic ammonium oxidation process according to claim 3, characterized in that: A transmission belt (303) is provided on the outer surface of the driving wheel (302), a driven wheel (304) is provided on the left side of the driving wheel (302), and the driving wheel (302) and the driven wheel (304) are connected in transmission via the transmission belt (303).

5. The integrated gas lift device based on anaerobic ammonium oxidation process according to claim 4, characterized in that: The bottom surface of the driven wheel (304) is fixedly connected to a rotating shaft (305), and the rotating shaft (305) rotates with the top cover (2), and the outer surface of the rotating shaft (305) is fixedly connected to a breaking rod (306).

6. The integrated gas lift device based on anaerobic ammonium oxidation process according to claim 5, characterized in that: An end of the rotating shaft (305) away from the driven wheel (304) is fixedly connected to an air ducting plate (307), an upper surface of the air ducting plate (307) is provided with an air ducting hole (308), and the air ducting hole (308) penetrates to the bottom surface of the air ducting plate (307).

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