Pulse type intensified hydrolysis and acidification integrated equipment

By combining small-size bucket containers and reflective components in the hydrolysis and acidification equipment, annular vortex is formed, which solves the problem of poor sludge stirring effect in traditional equipment, and achieves efficient hydrolysis and acidification and maintenance of activated sludge, thereby improving wastewater Processing effect.

CN222348791UActive Publication Date: 2025-01-14JIANGSU ZHENYI ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 1 Cited by

Patent Information

Application Number
CN202323633732.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-29
Publication Date
2025-01-14
Estimated Expiration
2033-12-29

AI Technical Summary

Technical Problem

The traditional pulse water dispenser is combined with concrete hydrolysis and acidification tank body. Due to the size of the pulse water dispenser, it cannot provide a good water dispenser effect, resulting in poor hydrolysis effect, especially when dealing with high concentrations of sludge.

Method used

A pulse-type enhanced hydrolysis and acidification integrated equipment is designed, using a small-size bucket-shaped hydrolysis and acidification container and reflective components to form an annular vortex, increasing the stirring effect of the sludge, and timely discharge of inactivated sludge through a multi-point sludge discharge system. sludge ensures the proportion of activated sludge.

Benefits of technology

The stirring effect of the sludge and the hydrolysis and acidification reaction efficiency are improved, and a high-active fluidized bed is formed, which enhances the biochemical property of the wastewater. The proportion of activated sludge is maintained through a multi-point sludge discharge system, which improves the treatment effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222348791U_ABST
    Figure CN222348791U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of water treatment, in particular to pulse type intensified hydrolytic acidification integrated equipment which comprises a hydrolytic acidification container, the bottom of the hydrolytic acidification container is arranged to be of a hopper-shaped structure and used for containing sludge, a reflection component is arranged at the bottom of the hopper-shaped structure, an overflow weir is arranged on the upper portion of the hydrolytic acidification container, and a water outlet is formed in the lower portion of the overflow weir. The overflow weir is connected to the inner wall of the hydrolytic acidification container; the pulse water distribution part is arranged at the top of the hydrolytic acidification container. A large-diameter concrete tank body in the prior art is abandoned, a small-size tank body with the diameter of 1.5-4.5 m is designed, the tank bottom is designed to be of a bucket-shaped structure, sludge can move upwards along with water flow in a larger range during water distribution, energy loss in the water distribution process is reduced through the combined design of the reflecting plate and the water distribution pipe, an annular vortex is formed more easily, and the water distribution efficiency is improved. A better stirring effect is formed on the sludge, and a high-activity hydrolytic acidification sludge fluidized bed is formed in the tank body.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to pulse-type enhanced hydrolysis and acidification integrated equipment. Background Art

[0002] The hydrolysis acidification process is widely used in the fields of municipal water treatment and industrial water treatment. It is generally used as a pretreatment process or an enhanced primary treatment process in front of the biochemical pool. The hydrolysis acidification method is a process between aerobic and anaerobic processes. The anaerobic reaction is artificially controlled in the hydrolysis and acidification stages. After the hydrolysis acidification reaction, the biodegradability of the wastewater is improved, and at the same time, a part of the organic matter is degraded and part of the suspended solids are intercepted.

[0003] With the improvement of industrial level, the number of industrial enterprises is increasing, and the corresponding wastewater types are becoming more and more complex. Compared with the past, the content of organic matter and difficult-to-degrade substances in industrial wastewater is also increasing. The types of wastewater and the difficulty of treatment are also increasing. The simple primary treatment process can no longer meet the requirements of the biochemical stage for wastewater pretreatment. The hydrolysis acidification process can depolymerize the macromolecular chains of organic matter into small molecular chains, further improve the biodegradability of wastewater, and decolorize and adsorb some suspended matter. It has many advantages and strong applicability, and is widely used in a large number of wastewater projects.

[0004] At present, the body of the hydrolysis acidification tank is mostly made of reinforced concrete, but the design of the corresponding pulse water distributor is often separated from the tank body. The pulse water distributor must consider factors such as transportation. Taking the cylindrical pulse water distribution device as an example, the diameter generally does not exceed 3m, and the height will not be too high. The total water distribution cycle is between 4-10min, so the single water storage volume of the pulse water distributor is limited.

[0005] However, traditional concrete hydrolysis and acidification tanks are generally larger in size due to cost and construction difficulty. Therefore, when the water storage capacity of the pulse water distributor is constant, the larger tank capacity will result in a lower rising flow rate in the hydrolysis and acidification tank. At the same time, because the pulse water distributor has a relatively small single water distribution volume, the kinetic energy brought by a single water distribution is also relatively small, and the mixing and stirring effect on the high-concentration sludge at the bottom of the tank is also worse.

[0006] Therefore, the traditional pulse water distributor combined with the concrete hydrolysis acidification tank is often unable to provide a good water distribution effect due to the size of the pulse water distributor, resulting in a relatively poor hydrolysis effect. Utility Model Content

[0007] In view of the technical problems existing in the hydrolysis acidification device in the prior art, the utility model proposes a pulse-type enhanced hydrolysis acidification integrated equipment, comprising:

[0008] A hydrolysis and acidification container, wherein the bottom of the hydrolysis and acidification container is configured as a bucket-shaped structure for accommodating sludge, a reflecting component is provided at the bottom of the bucket-shaped structure, and an overflow weir is provided at the top of the hydrolysis and acidification container, and the overflow weir is connected to the inner wall of the hydrolysis and acidification container;

[0009] A pulse water distribution component is arranged on the top of the hydrolysis acidification container, the pulse water distribution component is provided with a water distribution pipe for distributing water to the bottom of the hydrolysis acidification container, and the reflective component is located outside the outlet of the water distribution pipe;

[0010] The pulse water distribution component periodically distributes water into the bucket-shaped structure through the water distribution pipe, and the water level of the wastewater gradually rises from the bottom of the hydrolysis and acidification container until it reaches the height of the overflow weir;

[0011] The reflecting component is configured to change the direction of the outflow of the water distribution pipe and form an annular vortex in the bucket-shaped structure, so that the wastewater and the sludge in the bucket-shaped structure are effectively mixed.

[0012] Preferably, the reflective component is constructed as a conical structure, the top angle of the conical structure is β, and the value range of β is 90°<β<150°.

[0013] Preferably, the bucket-shaped structure is configured such that the effective cross-section gradually increases from bottom to top.

[0014] Preferably, the bucket-shaped structure is a circular bucket-shaped structure, and the angle between the inclined surface of the bucket-shaped structure and the horizontal plane is α, and the value range of α is 55°<α<75°.

[0015] Preferably, the water suction port of the water distribution pipe is located in the pulse water distribution component, and the height difference between the overflow weir and the water suction port of the water distribution pipe is greater than 0.8 m.

[0016] Preferably, the water distribution pipe is in the form of a single straight pipe, the diameter of the water distribution pipe is not less than 200 mm, and the distance between the drainage port of the water distribution pipe and the bottom of the bucket-shaped structure is greater than 100 mm.

[0017] Preferably, the water distribution cycle of the pulse water distribution component is 4-8 minutes.

[0018] Preferably, it also includes a mud discharge system, which includes a first mud discharge pipe and a second mud discharge pipe, the first mud discharge pipe extends to the bucket structure, and the second mud discharge pipe is arranged at a predetermined height outside the hydrolysis acidification container and is connected to the hydrolysis acidification container.

[0019] Preferably, the height between the second mud discharge pipe and the overflow weir is 1-1.5 m.

[0020] Preferably, the height layer between the bucket-shaped structure and the second mud discharge pipe is defined as a fluidized bed mixing area, in which hydrolysis and acidification reactions continue to occur; the height layer between the second mud discharge pipe and the overflow weir is defined as a mud-water separation area, and low-activity sludge is discharged from the second mud discharge pipe to the hydrolysis acidification container.

[0021] Compared with the prior art, the advantages of the utility model are:

[0022] The present application abandons the large-diameter concrete tank body in the prior art, designs a small-sized tank body with a diameter of 1.5-4.5m, and designs the tank bottom into a bucket-shaped structure, so that the sludge can have a larger range of movement upward with the water flow when distributing water. The combined design of the reflector and the water distribution pipe reduces the energy loss during the water distribution process, and is easier to form an annular vortex, which has a greater stirring effect on the sludge, and forms a highly active hydrolysis acidification sludge fluidized bed in the tank body;

[0023] In addition, by setting up multiple sludge discharge points outside the tank body, inactivated, aged sludge, anaerobic, inorganic sludge, etc. can be discharged from the system from the first sludge discharge pipe in time during operation, and the loose, low-activity sludge with poor adsorption and sedimentation properties formed on the upper part of the fluidized bed mixing reaction zone can be discharged from the system from the second sludge discharge pipe to ensure the proportion of activated sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0025] Figure 1 It is a structural schematic diagram of the pulse-type enhanced hydrolysis and acidification integrated equipment shown in the utility model. DETAILED DESCRIPTION

[0026] In order to better understand the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.

[0027] It should be understood that the water distribution of the upflow hydrolysis acidification tank is one of the important factors affecting the success of the hydrolysis acidification tank. Due to cost and construction difficulty considerations in the prior art, the water distributor has a poor stirring effect on the sludge in the acidification tank and cannot form a good water distribution effect, especially a large area of ​​continuous contact between the activated sludge and the wastewater. Therefore, the present application aims to solve the above problems.

[0028] Combination Figure 1As shown, the utility model proposes a pulse-type enhanced hydrolysis and acidification integrated equipment, including a hydrolysis and acidification container 2 and a pulse water distribution component 1. The difference from the prior art is that the hydrolysis and acidification container 2 adopts a smaller diameter size, and the pool diameter range is 1.5-4.5m. In particular, the bottom of the hydrolysis and acidification container 2 is configured as a bucket-shaped structure 4. The bucket-shaped structure 4 is used to accommodate sludge on the first hand, and on the second hand, it also reduces the cross-sectional size of the pool bottom. The same amount of water can form a greater stirring effect in a small space.

[0029] Optionally, the hydrolysis acidification container 2 may be a tank body with a square or circular cross-section, formed by welding carbon steel material.

[0030] Furthermore, a reflective component 11 is provided at the bottom of the bucket-shaped structure 4, an overflow weir 8 is provided at the upper part of the hydrolysis acidification container 2, and the overflow weir 8 is connected to the inner wall of the hydrolysis acidification container 2; a pulse water distribution component 1 is arranged at the top of the hydrolysis acidification container 2, and the pulse water distribution component 1 is provided with a water distribution pipe 3 for distributing water to the bottom of the hydrolysis acidification container 2, and the reflective component 11 is located outside the outlet of the water distribution pipe 3.

[0031] Among them, the reflecting component 11 is configured to change the direction of the water flow of the water distribution pipe 3, especially when the pulse water distribution component 1 distributes water to the hydrolysis acidification container 2 through the water distribution pipe 3, the water flow is guided by the reflecting component 11 to form an annular vortex in the bucket-shaped structure 4, so that the wastewater and the sludge in the bucket-shaped structure 4 are effectively mixed.

[0032] In this way, the pulse water distribution component 1 periodically distributes water to the bucket-shaped structure 4 through the water distribution pipe 3, and the water level of the wastewater gradually rises from the bottom of the hydrolysis and acidification container 2 until it reaches the height of the overflow weir 8. In addition, each water distribution can maximize the activated sludge to follow the upward water flow, forming a fluidized bed mixing reaction zone over a large area.

[0033] In an optional embodiment, the reflective component 11 is configured as a conical structure, and the top angle of the conical structure is β. Preferably, the value range of β is 90°<β<150°.

[0034] Combination Figure 1 As shown in the figure, the conical structure can change the flow direction of the wastewater. By guiding the flow direction of the wastewater, an annular vortex area is formed in the sludge area, which promotes the effective mixing of the incoming water and the high-concentration sludge. After mixing, in the pulse drainage stage, the larger upward flow rate will push the fully mixed mixed liquid to the fluidized bed mixing reaction area, and finally form a highly active sludge fluidized bed, in which the hydrolysis reaction and acidification reaction continue to take place.

[0035] At the same time, the conical structure can reduce the scouring effect of the wastewater pulse on the bottom of the bucket-shaped structure 4.

[0036] Furthermore, the bucket-shaped structure 4 is configured such that the effective cross-section gradually increases from bottom to top.

[0037] In this way, when a large flow of wastewater is reflected by the reflecting component 11 and mixed with the sludge, it rises against the side wall of the bucket-shaped structure 4. Since the effective cross-section of the bucket-shaped structure 4 gradually increases from bottom to top, its flow rate and pressure also gradually decrease. The sludge concentration at the bottom of the bucket-shaped structure 4 is the highest, and the corresponding initial flow rate of the mixed liquid is also the highest. Under the boost of the continuously influx of wastewater, the fluidized bed layer formed by the sludge mixing layer also gradually rises, and finally fully reacts in the fluidized bed mixing reaction zone.

[0038] Optionally, the bucket-shaped structure 4 is a circular bucket-shaped structure, and the angle between the inclined surface of the bucket-shaped structure 4 and the horizontal plane is α, and the value range of α is 55°<α<75°.

[0039] In other embodiments, the bucket-shaped structure 4 may also be a square bucket, and the angle between the inclined surface of the square bucket and the horizontal plane should be slightly larger than that of the circular bucket.

[0040] Furthermore, in order to increase the water distribution impact force of the pulse water distribution component 1, the water suction port of the water distribution pipe 3 is located inside the pulse water distribution component 1, and the height difference between the overflow weir 8 and the water suction port of the water distribution pipe 3 is greater than 0.8m.

[0041] In this way, sufficient liquid level difference (sufficient potential energy) is ensured to provide the wastewater with sufficient kinetic energy to fully stir the sludge bed into an activated state.

[0042] Preferably, the water distribution pipe 3 is in the form of a single straight pipe, the diameter of the water distribution pipe 3 is not less than 200 mm, and the distance between the drainage port of the water distribution pipe 3 and the bottom of the bucket-shaped structure 4 is greater than 100 mm.

[0043] In this way, the use of a large-diameter water distribution pipe 3 can avoid pipeline blockage, while ensuring that there is enough space at the pipe opening of the water distribution pipe 3 to reduce the resistance along the way during the water distribution process.

[0044] In an optional embodiment, the pulse water distribution component 1 is in the form of an integrated device, and its internal structure can be a bell-type pulse water distributor or a siphon-type pulse water distributor.

[0045] The operation mode of the pulse water distribution component 1 is continuous water inflow and periodic water distribution. The pulse cycle is 4-8 minutes, and each cycle is divided into a water inflow phase and a water distribution phase.

[0046] Water inlet stage: the process in which wastewater enters the pulse water distribution device through a water pump or other means. During this process, the pulse water distribution device only takes in water but does not discharge water. The liquid level inside the pulse water distribution device gradually rises until the liquid level inside the pulse water distribution device gradually rises to the critical point. The siphon effect will stimulate the pulse water distribution, and the wastewater in the pulse water distribution device will be quickly discharged through the water distribution pipe 3 due to the siphon effect, until most of the wastewater in the pulse water distribution device is discharged and the siphon effect is automatically broken.

[0047] Water distribution stage: According to the principle of conservation of energy, the potential energy of wastewater is converted into kinetic energy. A large amount of wastewater is discharged from the water distribution pipe 3 to the surface of the reflective component 11 at a certain speed, and changes direction after the collision, and decelerates from bottom to top at a certain initial velocity. At this stage, the sludge at the bottom of the bucket structure 4 is stirred and mixed on a large scale and moves upward with the water flow.

[0048] When the water distribution stage is over, the sludge bed begins to settle until the next water distribution stage begins, and the cycle repeats itself. The average rising flow rate of this process meets the requirement of 0.5m / h-2.0m / h, and when the next water distribution stage arrives, there is always activated sludge that has not settled to the bottom of the pool. Therefore, the rising flow rate of the mixed liquid is always greater than the sludge settling rate, ensuring that the fluidized bed is in an activated state.

[0049] It should be understood that during the reaction of sludge and wastewater, inactivated sludge will settle to the bottom of the bucket-shaped structure 4, and a small amount of spilled low-activity sludge will float on the upper part of the hydrolysis acidification container 2. Therefore, in order to increase the proportion of activated sludge in the sludge, the present application sets up a sludge discharge system, which is intended to discharge the inactivated inorganic sludge and the floating low-activity sludge from the hydrolysis acidification container 2.

[0050] Among them, the deactivated sludge refers to the sludge that is mostly inorganic. The density of inorganic sludge is greater than that of water, so it slowly settles to the bottom of the bucket structure 4. The activated sludge is in a state of attaching to microorganisms to form flocs, and its density is equivalent to that of water, so the overall state is similar to colloid, and it maintains a colloid state and is suspended in the pool; in addition, a small amount of low-activity sludge that overflows is in a free state and is easily overflowed with water.

[0051] Furthermore, the mud discharge system includes a first mud discharge pipe 10 and a second mud discharge pipe 9 . The first mud discharge pipe 10 extends to the bucket structure 4 . The second mud discharge pipe 9 is arranged at a predetermined height outside the hydrolysis acidification container 2 and communicates with the hydrolysis acidification container 2 .

[0052] In an optional embodiment, the height between the second mud discharge pipe 9 and the overflow weir 8 is 1-1.5 m.

[0053] It is easy to understand that the height layer between the bucket structure 4 and the second mud discharge pipe 9 is the area with the most efficient fluidized mixing, so this area is defined as the fluidized bed mixing area 6, in which hydrolysis and acidification reactions continue to occur. At the height position of the second mud discharge pipe 9, the low-activity sludge will be discharged by the second mud discharge pipe 9, and when the fluidized bed sludge in the fluidized bed mixing area 6 reaches this height during its ascent, the rising flow rate gradually decreases, achieving mud-water separation. After passing through this area, the wastewater is discharged from the system through the overflow weir 8, so the height layer between the second mud discharge pipe 9 and the overflow weir 8 is defined as the mud-water separation area 7.

[0054] Among them, the height of the fluidized bed mixing area 6 is a design height related to the water distribution flow rate and the sludge amount, and can be set as needed.

[0055] In a specific embodiment, the basic process of hydrolysis and acidification is:

[0056] Wastewater is lifted by a water pump or other means to enter the pulse water distribution component 1. In the pulse water distribution component 1, the water inlet flow is less than the water distribution flow. The pulse cycle is 4-8 minutes, and each cycle is divided into a water inlet stage and a water distribution stage. Water inlet stage: After the liquid level in the pulse water distribution device reaches a certain excitation height, the siphon effect is triggered, and then the water distribution stage is entered. Water distribution stage: wastewater is siphoned and drained through the siphon water distribution pipe. Wastewater is discharged in large quantities in a short time. The pipe flow rate of siphon drainage can reach 2.5-3.5m / s, so a good mixing effect can be achieved.

[0057] The wastewater flows from the pulse water distribution component 1 through the water distribution pipe 3 into the sludge area 5 at the bottom of the bucket-shaped structure 4. After being offset by the reflective component 11, the direction of the wastewater deviates. After passing through the reflective plate, most of the wastewater rises along the side wall of the bucket-shaped structure 4. At the same time, the high-concentration sludge in the original bucket-shaped structure 4 moves downward, forming an annular vortex in the upper area of ​​the sludge bucket, and achieving full mixing of the wastewater and the sludge.

[0058] The continuously entering wastewater pushes the evenly mixed mixed liquid upward into the fluidized bed mixing area 6 where hydrolysis and acidification reactions continue to occur. Microorganisms proliferate by decomposing organic matter in the wastewater. Part of the organic matter is decomposed in the process. Anaerobic microorganisms undergo hydrolysis and acidification reactions inside the hydrolysis and acidification container 2, breaking some of the difficult-to-degrade macromolecular chains into small molecular organic matter, which can achieve functions such as detoxification and decolorization to a certain extent, thereby improving the biodegradability of the wastewater.

[0059] A 1-1.5m mud-water separation area 7 is set on the upper part of the hydrolysis acidification container 2, that is, above the fluidized bed mixing area 6. The fluidized bed in the fluidized bed mixing area 6 continues to react, and a small amount of low-activity sludge with loose state and poor sedimentation performance will be formed in the process. This part of the sludge is discharged from the system through the second sludge discharge pipe 9.

[0060] The hydrolysis acidified sludge fluidized bed is in a state of continuous pulse activation. During the pulse water distribution stage, the sludge bed is in an expanded state. During the period from the completion of water distribution to the start of the next water distribution, the flow rate of the mixed liquid gradually decreases due to the increase in the effective cross section. Finally, the sludge is destabilized below the mud-water separation area 7 and the sludge settles naturally. After the reaction, the wastewater continues to rise and is discharged from the system through the overflow weir 8, while the sludge continues to sink and enters the vortex in the sludge area 5 below the fluidized bed mixing area 6, and is remixed with the wastewater brought by the next pulse water distribution process at the bottom of the bucket structure 4.

[0061] As the system continues to operate, after some sludge reaches a certain sludge age, its activity will decrease, and its ability to decompose large molecular organic matter will gradually decrease. This part of low-activity or inactivated sludge will gradually accumulate in the lower part of the bucket structure 4. After a certain period of time, the inactivated, aged sludge and anaerobic, inorganic sludge will be discharged from the system from the first sludge discharge pipe 10, so that the overall sludge age in the system is controlled within a suitable range.

[0062] After the raw wastewater passes through this equipment, it is fully mixed with the sludge in the equipment. After the hydrolysis and acidification sludge fluidized bed, some organic matter is removed, and some macromolecular organic matter is decomposed into easily degradable small molecular organic matter through hydrolysis and acidification reactions. Some suspended matter is also adsorbed and intercepted. The treated wastewater enters the next stage through the overflow weir, and the sludge is finally discharged from the system through the sludge discharge pipe.

[0063] In combination with the above embodiments, the present application abandons the large-diameter concrete tank body in the existing technology, designs a small-sized tank body with a diameter of 1.5-4.5m, and designs the tank bottom as a bucket-shaped structure, so that the sludge can have a larger range of movement upward with the water flow when distributing water. The combined design of the reflector and the water distribution pipe reduces the energy loss in the water distribution process, and is easier to form an annular vortex, which has a greater stirring effect on the sludge, and forms a highly active hydrolysis acidification sludge fluidized bed in the tank body;

[0064] In addition, by setting up multiple sludge discharge points outside the tank body, inactivated, aged sludge, anaerobic, inorganic sludge, etc. can be discharged from the system from the first sludge discharge pipe in time during operation, and the loose, low-activity sludge with poor adsorption and sedimentation properties formed on the upper part of the fluidized bed mixing reaction zone can be discharged from the system from the second sludge discharge pipe to ensure the proportion of activated sludge.

[0065] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A pulse-type enhanced hydrolysis and acidification integrated equipment, characterized in that: include: A hydrolysis and acidification container (2), wherein the bottom of the hydrolysis and acidification container (2) is configured as a bucket-shaped structure (4) for accommodating sludge, the bottom of the bucket-shaped structure (4) is provided with a reflecting component (11), and the upper part of the hydrolysis and acidification container (2) is provided with an overflow weir (8), and the overflow weir (8) is connected to the inner wall of the hydrolysis and acidification container (2); A pulse water distribution component (1) is arranged on the top of the hydrolysis acidification container (2), the pulse water distribution component (1) is provided with a water distribution pipe (3) for distributing water to the bottom of the hydrolysis acidification container (2), and the reflective component (11) is located outside the outlet of the water distribution pipe (3); The pulse water distribution component (1) periodically distributes water into the bucket-shaped structure (4) through the water distribution pipe (3), and the water level of the wastewater gradually rises from the bottom of the hydrolysis and acidification container (2) until it reaches the height of the overflow weir (8); The reflecting component (11) is configured to change the direction of the water flow out of the water distribution pipe (3) and form an annular vortex in the bucket-shaped structure (4), thereby effectively mixing the wastewater and the sludge in the bucket-shaped structure (4).

2. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The reflective component (11) is constructed as a conical structure, the top angle of the conical structure is β, and the value range of β is 90°<β<150°.

3. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The bucket-shaped structure (4) is configured such that the effective cross-section gradually increases from bottom to top.

4. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The bucket-shaped structure (4) is a circular bucket-shaped structure, and the angle between the inclined surface of the bucket-shaped structure (4) and the horizontal plane is α, and the value range of α is 55°<α<75°.

5. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The water suction port of the water distribution pipe (3) is located in the pulse water distribution component (1), and the height difference between the overflow weir (8) and the water suction port of the water distribution pipe (3) is greater than 0.8 m.

6. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The water distribution pipe (3) is in the form of a single straight pipe, the diameter of the water distribution pipe (3) is not less than 200 mm, and the distance between the drainage port of the water distribution pipe (3) and the bottom of the bucket-shaped structure (4) is greater than 100 mm.

7. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 1 is characterized in that: The water distribution cycle of the pulse water distribution component (1) is 4-8 minutes.

8. The pulse-type enhanced hydrolysis and acidification integrated equipment according to any one of claims 1 to 7, characterized in that: The invention also comprises a mud discharge system, the mud discharge system comprising a first mud discharge pipe (10) and a second mud discharge pipe (9), the first mud discharge pipe (10) extending to the bucket-shaped structure (4), the second mud discharge pipe (9) being arranged at a predetermined height outside the hydrolysis acidification container (2) and being in communication with the hydrolysis acidification container (2).

9. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 8, characterized in that: The height between the second mud discharge pipe (9) and the overflow weir (8) is 1-1.5 m.

10. The pulse-type enhanced hydrolysis and acidification integrated equipment according to claim 8, characterized in that: The height layer between the bucket-shaped structure (4) and the second sludge discharge pipe (9) is defined as a fluidized bed mixing area (6), in which hydrolysis and acidification reactions continuously occur; the height layer between the second sludge discharge pipe (9) and the overflow weir (8) is defined as a sludge-water separation area (7), in which low-activity sludge is discharged from the second sludge discharge pipe (9) to the hydrolysis-acidification container (2).

Citation Information

Cited By

  • Method and system for converting carbon source in sewage and storing carbon in sludge

    CN120024995A