A vertical flow multi-chamber completely mixed anaerobic water treatment device

Abstract

The application discloses a vertical flow multi-cavity full-mixing anaerobic water treatment device, and relates to the technical field of sewage treatment. The device comprises a sewage treatment area, wherein the sewage treatment area comprises a mud-water mixing area, a reaction area, a gas releasing area and a mud-water separation area which are sequentially connected; the reaction area comprises a first reaction area, a second reaction area and a third reaction area which are sequentially connected; and the lower part of the gas releasing area is communicated with the lower part of the mud-water separation area. The reaction area is designed in the structure of multiple up-and-down repeated baffling, so that the mud and water can be fully mixed; the water flow is increased by water backflow, so that the water shear is improved to some extent, and the sludge deposition at the bottom of the reaction area is reduced; the mud-water separation area is arranged in parallel with the reaction area, and the horizontal gravity flows into the mud-water separation area to replace the traditional three-phase separator with a complex structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a vertical flow multi-chamber fully mixed anaerobic water treatment device. BACKGROUND

[0002] Highly organic contaminated wastewater is usually treated by anaerobic biological technology. Currently, commonly used anaerobic reactors, such as UASB (upflow anaerobic sludge bed), EGSB (expanded granular sludge bed), and IC (internal circulation anaerobic reactor), are all integrated upflow reactors. A typical anaerobic reactor includes a water inlet and distribution system, a reaction zone, a three-phase separator, and a water outlet system. Wastewater enters the reactor from the bottom to the top through the water inlet and distribution system, fully contacts with anaerobic sludge in the reaction zone, and the organic pollutants are degraded by anaerobic microorganisms to produce biogas. The mixture of sludge, water, and gas continues to move upward, and the three-phase separator separates the three-phase materials. The sludge precipitates and falls back to the reaction zone, the gas is collected in the gas collection chamber, and the wastewater is discharged from the reactor through the water outlet system.

[0003] The above-mentioned traditional anaerobic reactor is basically an integrated reactor, and the reaction zone and the three-phase separator are in the same space with an up-down relationship. The three-phase separator has great limitations due to the limitation of narrow gap flow rate. As the water inlet load increases and the gas production load rate increases, the upward flow rate of gas and liquid inevitably increases, which easily causes sludge loss. Therefore, the design of the current upflow anaerobic reactor is limited in further improving the load of the anaerobic reactor, that is, there is a contradiction between improving the treatment load and the separation effect of sludge, water, and gas. In addition, in order to achieve good sludge and water mixing mass transfer effect, the anaerobic reactor also needs sufficient upward flow rate, but it is difficult to guarantee the upward flow rate due to the restriction of water inlet load at different times. Even though the EGSB reactor has a large internal reflux pump, it completely relies on a high-power sludge reflux pump to ensure sufficient upward flow rate of the reactor through the water distributor. The water distribution system also has technical problems such as easy clogging, difficult maintenance, and high energy consumption.

[0004] Improving the efficiency of anaerobic treatment and biogas production rate is an important measure for energy recovery in wastewater treatment. How to greatly improve the reactor load while considering stable treatment performance and sludge and water gas separation effect, and ensuring sufficient sludge retention, is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] The present application provides a vertical flow multi-chamber fully mixed anaerobic water treatment device, which can solve the problem of the existing anaerobic reactor in greatly improving the water inlet load while considering stable treatment performance and sludge and water gas separation effect.

[0006] To solve the above problems, the technical scheme adopted by the present application is as follows:

[0007] The application provides a vertical flow multi-chamber full-mixing anaerobic water treatment device, which comprises a sewage treatment area, wherein the sewage treatment area comprises a sludge-water mixing area, a reaction area, a gas releasing area and a sludge-water separation area which are sequentially connected.

[0008] The reaction area comprises a first reaction area, a second reaction area and a third reaction area which are sequentially connected; the sludge-water mixing area is connected with the first reaction area, a first partition wall is arranged between the first reaction area and the sludge-water mixing area, a first water passing hidden hole is arranged at the bottom of the first partition wall; a second partition wall is arranged between the first reaction area and the second reaction area, a first upper water passing hole is arranged at the top of the second partition wall; a third partition wall is arranged between the second reaction area and the third reaction area, a second water passing hidden hole is arranged at the bottom of the third partition wall; the third reaction area is connected with the gas releasing area, a fourth partition wall is arranged between the third reaction area and the gas releasing area, and a second upper water passing hole is arranged at the top of the fourth partition wall.

[0009] A fifth partition wall is arranged between the gas releasing area and the sludge-water separation area, the bottom of the fifth partition wall is not in contact with the bottom surface of the gas releasing area and the sludge-water separation area, and the lower part of the gas releasing area is in communication with the lower part of the sludge-water separation area.

[0010] Preferably, one side of the sludge-water separation area is arranged in parallel with the reaction area.

[0011] Preferably, the bottom of the first reaction area, the second reaction area and the third reaction area is in the shape of a conical hopper.

[0012] Further, the bottom of the sludge-water separation area is in the shape of a cone, and a sludge backflow slot is arranged at the lower end of the cone.

[0013] Further, the sludge-water separation area is provided with inclined pipe fillers or inclined plate fillers.

[0014] Further, the sewage treatment area further comprises a water outlet area, the water outlet area is arranged at the front end of the sludge-water mixing area, and a water outlet backflow pump is arranged between the water outlet area and the sludge-water mixing area.

[0015] Further, the sewage treatment area further comprises a sludge retention area, the sludge retention area is connected with the sludge-water separation area, and the sludge retention area is provided with a sludge discharge pipe.

[0016] Preferably, one side of the sludge retention area is arranged in parallel with the sludge-water separation area.

[0017] Further, a sludge backflow pipe is arranged between the sludge retention area and the sludge-water mixing area, and a sludge backflow pump is arranged on the sludge backflow pipe.

[0018] Further, a water outlet overflow pipe is arranged between the water outlet area and the sludge-water separation area.

[0019] Further, the water outlet area is co-walled with the sludge-water mixing area, the water outlet area is provided with a water outlet pipe, and the sludge-water mixing area is provided with a water inlet pipe.

[0020] Further, the top gas collection area is arranged above the sewage treatment area.

[0021] Further, the top gas collection area comprises a sealing cover plate and a top biogas collection pipe, the sealing cover plate is arranged above the sewage treatment area and is sealingly and fixedly connected with the sewage treatment area, and the sealing cover plate is provided with the top biogas collection pipe.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] 1. The reaction area is designed in the form of multiple up-and-down repeated baffling, which can prolong the reaction path, reduce the ascending cross section, increase the ascending flow rate with low energy consumption, realize complete mixing of sludge and water, avoid short flow, avoid local overload, and prevent acidification.

[0024] 2. The water outlet backflow increases the water inlet flow, which can improve the hydraulic shear to some extent and reduce the sludge deposition at the bottom of the reaction area.

[0025] 3. The parallel arrangement of the sludge-water separation area and the reaction area can realize that the sludge-water mixture in the reaction area is separated from the biogas in the gas release area, and then flows into the sludge-water separation area by horizontal gravity, thereby replacing the traditional three-phase separator with complex structure.

[0026] 4. The internal multiple groups of structure design can effectively cope with seasonal changes in water quantity. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a top view of a vertical flow multi-chamber full-mixing anaerobic water treatment device according to an embodiment of the present application;

[0029] Figure 2 is Figure 1 is a sectional view along the direction of 1-1;

[0030] Figure 3 is Figure 1 is a sectional view along the direction of 2-2;

[0031] Explanation of symbols in the drawings:

[0032] 1 - sewage treatment zone; 2 - sludge-water mixing zone; 3 - gas releasing zone; 4 - sludge-water separation zone; 5 - sludge retention zone; 6 - effluent zone; 7 - influent pipe; 8 - first reaction zone; 9 - second reaction zone; 10 - third reaction zone; 11 - first partition wall; 12 - second partition wall; 13 - third partition wall; 14 - fourth partition wall; 15 - fifth partition wall; 16 - first upper water passing hole; 17 - second upper water passing hole; 18 - sludge backflow slit; 19 - inclined pipe filler; 20 - sludge backflow pipe; 21 - sludge backflow pump; 22 - sludge discharge pipe; 23 - effluent overflow pipe; 24 - effluent backflow pump; 25 - effluent pipe; 26 - top gas collection zone; 27 - sealing cover plate; 28 - top biogas collection pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] The terms "first", "second", "third" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0037] Please refer to Figures 1-3 The vertical flow multi-chamber fully-mixed anaerobic water treatment device shown in the figure comprises a sewage treatment zone 1, which comprises a sludge-water mixing zone 2, a reaction zone, a gas releasing zone 3, a sludge-water separation zone 4, a sludge retention zone 5 and an effluent zone 6 connected in sequence.

[0038] The sludge-water mixing zone 2 is provided with a water inlet pipe 7, and the sewage to be treated enters the sludge-water mixing zone 2 through the water inlet pipe 7. The sludge-water mixing zone 2 is used to satisfy the independent mixing of the inlet water and the return sludge, and then the mixed sludge-water enters the subsequent reaction zone. A partition wall is arranged between the sludge-water mixing zone 2 and the reaction zone.

[0039] The reaction zone comprises a first reaction zone 8, a second reaction zone 9 and a third reaction zone 10 connected in sequence. The reaction zone provides an independent biological metabolic reaction place for the mixed sludge-water. A first partition wall 11 is arranged between the first reaction zone 8 and the sludge-water mixing zone 2, and a first water passing hidden hole is arranged at the bottom of the first partition wall 11. The mixed sludge-water in the sludge-water mixing zone 2 can enter the first reaction zone 8 through the first water passing hidden hole after being mixed uniformly. A second partition wall 12 is arranged between the first reaction zone 8 and the second reaction zone 9, and a first upper water passing hole 16 is arranged at the top of the second partition wall 12. The mixed sludge-water which is not completely reacted in the first reaction zone 8 can enter the second reaction zone 9 through the first upper water passing hole 16 to continue the reaction. A third partition wall 13 is arranged between the second reaction zone 9 and the third reaction zone 10, and a second water passing hidden hole is arranged at the bottom of the third partition wall 13. The mixed sludge-water which is not completely reacted in the second reaction zone 9 can enter the third reaction zone 10 through the second water passing hidden hole to continue the reaction. After the sewage to be treated is sequentially reacted in the first reaction zone 8, the second reaction zone 9 and the third reaction zone 10, the organic matter is substantially completely metabolized, and then enters the subsequent gas releasing zone 3. The third reaction zone 10 is connected with the gas releasing zone 3, and a fourth partition wall 14 is arranged between the third reaction zone 10 and the gas releasing zone 3. A second upper water passing hole 16 is arranged at the top of the fourth partition wall 14. The mixed sludge-water which is completely reacted in the third reaction zone 10 and contains biogas can enter the gas releasing zone 3 through the second upper water passing hole 16.

[0040] The gas releasing zone 3 is connected with the sludge-water separation zone 4, and a fifth partition wall 15 is arranged between the gas releasing zone 3 and the sludge-water separation zone 4. The bottom of the fifth partition wall 15 is not in contact with the bottom surfaces of the gas releasing zone 3 and the sludge-water separation zone 4. The lower part of the gas releasing zone 3 is communicated with the lower part of the sludge-water separation zone 4, so that the mixed sludge-water in the gas releasing zone 3 can enter the sludge-water separation zone 4, and the sludge-water separation is realized. The sludge-water separation zone 4 is arranged in parallel with the reaction zone on one side. The bottom of the sludge-water separation zone 4 is in a conical structure, and a sludge return gap 18 is arranged at the lower end of the conical structure. The sludge precipitated in the sludge-water separation zone 4 can slide to the sludge retention zone 5 through the sludge return gap 18. The sludge-water separation zone 4 is provided with an inclined pipe filler 19 or an inclined plate filler, and preferably a honeycomb-shaped hexagonal inclined pipe filler 19, which is beneficial to increase the precipitation area and accelerate the sludge-water separation.

[0041] The sludge-water separation zone 4 is connected with the sludge retention zone 5, and the other side of the sludge-water separation zone 4 is arranged in parallel with the sludge retention zone 5. The sludge retention zone 5 is used for sludge storage and discharge. A sludge backflow pipe 20 is arranged between the sludge retention zone 5 and the sludge-water mixing zone 2, and a sludge backflow pump 21 is arranged on the sludge backflow pipe 20. The sludge backflow pump 21 can pump the sludge from the sludge retention zone 5 to the sludge-water mixing zone 2, so as to realize the full-mixing circulation of the sludge in the whole device. The sludge retention zone 5 is also provided with a sludge discharge pipe 22, which is connected with the sludge backflow pipe 20, and the sludge can be discharged through the sludge discharge pipe 22.

[0042] A water overflow pipe 23 is arranged between the sludge-water separation zone 4 and the water outlet zone 6, and the supernatant in the sludge-water separation zone 4 is sent to the water outlet zone 6 through the water overflow pipe 23. The water outlet zone 6 is arranged at the front end of the sludge-water mixing zone 2, and the water outlet zone 6 is arranged in a common wall with the sludge-water mixing zone 2. A water backflow pump 24 is arranged between the water outlet zone 6 and the sludge-water mixing zone 2. The water in the water outlet zone 6 can be pumped to the sludge-water mixing zone 2 through the water backflow pump 24, mixed uniformly, and then enter the reaction zone to supply water to the bottom of the reaction zone. The water outlet zone 6 is also provided with a water outlet pipe 25, and the water outlet zone 6 can collect the water and discharge the water through the water outlet pipe 25.

[0043] The vertical flow multi-chamber full-mixing anaerobic water treatment device also comprises a top gas collection zone 26 arranged above the sewage treatment zone 1. The top gas collection zone 26 comprises a sealing cover plate 27 and a top biogas collection pipe 28. The sealing cover plate 27 is arranged above the sewage treatment zone 1 and is sealingly and fixedly connected with the sewage treatment zone 1. The top biogas collection pipe 28 is arranged on the sealing cover plate 27. The biogas generated in the vertical flow multi-chamber full-mixing anaerobic water treatment device is uniformly collected and discharged through the top biogas collection pipe 28.

[0044] The working process of the vertical flow multi-chamber full-mixing anaerobic water treatment device is as follows:

[0045] The sewage to be treated enters the sludge-water mixing area 2 from the water inlet pipe 7. The sludge-water mixing area 2 is connected with the reaction area, which comprises the first reaction area 8, the second reaction area 9 and the third reaction area 10 connected in sequence. The sludge-water mixing area 2 and the first reaction area 8 are interconnected, and a first partition wall 11 is arranged between the sludge-water mixing area 2 and the first reaction area 8. The bottom of the first partition wall 11 is provided with a first water passing hidden hole. The water inlet and the backflow sludge in the sludge-water mixing area 2 are mixed uniformly and then enter the first reaction area 8 through the first water passing hidden hole. The first reaction area 8 and the second reaction area 9 are interconnected, and a second partition wall 12 is arranged between the first reaction area 8 and the second reaction area 9. The top of the second partition wall 12 is provided with a first upper water passing hole 16. The sludge-water mixture which is not completely reacted in the first reaction area 8 can enter the second reaction area 9 through the first upper water passing hole 16 to continue the reaction. The second reaction area 9 and the third reaction area 10 are interconnected, and a third partition wall 13 is arranged between the second reaction area 9 and the third reaction area 10. The bottom of the third partition wall 13 is provided with a second water passing hidden hole. The sludge-water mixture which is not completely reacted in the second reaction area 9 enters the third reaction area 10 through the second water passing hidden hole to continue the reaction. The water flow direction in the reaction area is an up-down deflection mode, which is beneficial to realize complete mixing of sludge and water. After the water outlet of the sludge-water mixing area 2 is reacted in the first reaction area 8, the second reaction area 9 and the third reaction area 10 in sequence, the complete metabolism of organic matter is basically realized.

[0046] The third reaction area 10 and the gas releasing area 3 are interconnected, and a fourth partition wall 14 is arranged between the third reaction area 10 and the gas releasing area 3. The top of the fourth partition wall 14 is provided with a second upper water passing hole 17. The sludge-water mixture which is completely reacted in the third reaction area 10 and contains biogas can enter the gas releasing area 3 through the second upper water passing hole 17. The gas releasing area 3 can separate the biogas bubbles from the sludge-water mixture which contains biogas in the third reaction area 10 in the process before entering the sludge-water separation area 4. When the sludge-water mixture containing biogas moves downward under the action of gravity, the gas bubbles move at a reduced speed under the action of buoyancy, and the biogas bubbles are gradually separated from the sludge-water mixture. This feature can ensure that only the sludge-water mixture enters the sludge-water separation area instead of the sludge-water mixture containing biogas, which is beneficial to the subsequent sludge-water separation.

[0047] The gas releasing area 3 is connected with the sludge-water separation area 4, and a fifth partition wall 15 is arranged between the gas releasing area 3 and the sludge-water separation area 4. The lower part of the gas releasing area 3 is communicated with the lower part of the sludge-water separation area 4, so as to facilitate the sludge-water mixture in the gas releasing area 3 to enter the sludge-water separation area and realize sludge-water separation. One side of the sludge-water separation area 4 is arranged in parallel with the reaction area, so that the sludge-water mixture which is completely reacted in the reaction area can flow into the sludge-water separation area 4 from the gas releasing area 3 by horizontal gravity. This process can realize that the ordinary sludge-water separation area 4 and the gas releasing area 3 are used to replace the three-phase separator which is complex in structure and difficult to control in sludge running in the traditional anaerobic reactor.

[0048] The bottom of the sludge-water separation zone 4 is in a conical structure, and the lower end of the conical structure is provided with a sludge backflow slot 18, and the sludge precipitated in the sludge-water separation zone 4 can slide to the sludge retention zone 5 through the sludge backflow slot 18. The sludge-water separation zone 4 is provided with an inclined tube filler 19 or an inclined plate filler, which is beneficial to increase the precipitation area and accelerate sludge-water separation.

[0049] The sludge-water separation zone 4 is connected with the sludge retention zone 5, and the other side of the sludge-water separation zone 4 is arranged in parallel with the sludge retention zone 5. The sludge retention zone 5 is provided with a sludge backflow pipe 20 between the sludge retention zone 5 and the sludge-water mixing zone 2, and the sludge backflow pipe 20 is provided with a sludge backflow pump 21. The sludge backflow pump 21 can pump the sludge from the sludge retention zone 5 to the sludge-water mixing zone 2, so as to realize the full-mixing circulation of the sludge in the whole device. The sludge retention zone 5 is also provided with a sludge discharge pipe 22, and the sludge discharge pipe 22 is connected with the sludge backflow pipe 20, so that the sludge can be discharged through the sludge discharge pipe 22.

[0050] The sludge-water separation zone 4 is provided with a water overflow pipe 23 between the sludge-water separation zone 4 and the water outlet zone 6, and the supernatant in the sludge-water separation zone 4 is sent to the water outlet zone 6 through the water overflow pipe 23. The water outlet zone 6 is arranged at the front end of the sludge-water mixing zone 2, and the water outlet zone 6 is arranged in a common wall with the sludge-water mixing zone 2. The water outlet zone 6 is provided with a water backflow pump 24 between the water outlet zone 6 and the sludge-water mixing zone 2. The water in the water outlet zone 6 can be pumped to the sludge-water mixing zone 2 through the water backflow pump 24, mixed uniformly, and then enters the reaction zone to supply water to the bottom of the reaction zone. The setting of the water backflow pump 24 can realize that the sludge at the bottom of the reaction zone does not deposit; by adjusting the external reflux ratio, it can ensure that the reaction zone has sufficient gas-liquid upward flow velocity, realize the scouring and polishing of the sludge, and be beneficial to the granulation of the sludge; the surface load of the sludge-water separation zone 4 can be adjusted, so that the flocculent sludge can be completely washed out, which is helpful to accelerate the formation of granular sludge. The water outlet zone 6 is also provided with a water outlet pipe 25, and the water outlet zone 6 can collect the water and discharge the water through the water outlet pipe 25.

[0051] The vertical flow multi-chamber full-mixing anaerobic water treatment device also comprises a top gas collection zone 26 arranged above the sewage treatment zone 1. The top gas collection zone 26 comprises a sealing cover plate 27 and a top biogas collection pipe 28. The sealing cover plate 27 is arranged above the sewage treatment zone 1 and is sealingly and fixedly connected with the sewage treatment zone 1. The top biogas collection pipe 28 is arranged on the sealing cover plate 27. The biogas generated in the vertical flow multi-chamber full-mixing anaerobic water treatment device is uniformly collected and discharged through the top biogas collection pipe 28. The chambers of each reaction zone are independent of each other, and the biogas generated in each reaction zone vertically overflows to the top gas collection zone 26 and does not enter the sludge-water separation zone 4 in a large amount, so as to avoid the interference of the sludge-water separation caused by the biogas. The traditional anaerobic reactor has the problem that the gas, sludge and water are in the same space, and the biogas affects the sludge-water separation.

[0052] The vertical flow multi-chamber full-mixing anaerobic water treatment device has the following beneficial effects:

[0053] 1. The reaction zone is designed with this kind of structural form of repeated up and down bends, which can extend the reaction path, reduce the rising cross-section, increase the rising flow rate with low energy consumption, and achieve complete mixing of mud and water, thus avoiding short flow, local overload and acidification.

[0054] 2. The setting of effluent reflux ensures sufficient gas-liquid rising velocity in the reaction zone by adjusting the external reflux ratio, so as to achieve scouring and grinding of sludge, which is conducive to ensuring sludge granulation; the surface load of the mud-water separation zone can be adjusted to ensure that the flocculent mud can be thoroughly washed out, which helps to accelerate the formation of granular sludge.

[0055] 3. The mud-water mixture after the reaction in the reaction zone flows from the gas release zone to the mud-water separation zone by horizontal gravity, realizing the use of a simple and practical mud-water separation module to replace the three-phase separator that the traditional anaerobic reactor relies on for mud-water separation, which has a complex structure and is difficult to control to prevent mud from flowing.

[0056] 4. The biogas generated in the device is collected and discharged in a unified manner through the biogas pipe at the top. The chambers of each reaction zone are independent of each other. The biogas generated in each reaction zone overflows vertically upward to the gas collecting area at the top, thus avoiding the situation in traditional anaerobic reactors where the three-phase substances of mud, water and gas are all in the same space and biogas affects the separation of mud and water.

[0057] In another embodiment, the bottoms of the first reaction zone, the second reaction zone, and the third reaction zone are cone-shaped, which is beneficial to reducing the water distribution area and reducing dead corners for sludge deposition.

[0058] In another embodiment, a vertical flow multi-chamber fully mixed anaerobic water treatment device can be set up as multiple parallel sets placed in parallel to achieve partial operation and partial sleep, adapting to the problem of large changes in water volume in the off-season and peak season in industrial wastewater treatment scenarios.

[0059] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A vertical flow multi-chamber fully mixed anaerobic water treatment device, including a sewage treatment area, characterized in that: The sewage treatment area includes a mud-water mixing area, a reaction area, a gas release area, and a mud-water separation area connected in sequence; The reaction zone includes a first reaction zone, a second reaction zone, and a third reaction zone connected in sequence; the mud-water mixing zone is connected to the first reaction zone, a first partition wall is provided between the first reaction zone and the mud-water mixing zone, and a first water-passing hole is provided at the bottom of the first partition wall; a second partition wall is provided between the first reaction zone and the second reaction zone, and a first upper water-passing hole is provided at the top of the second partition wall; a third partition wall is provided between the second reaction zone and the third reaction zone, and a second water-passing hole is provided at the bottom of the third partition wall; the third reaction zone is connected to the degassing zone, a fourth partition wall is provided between the third reaction zone and the degassing zone, and a second upper water-passing hole is provided at the top of the fourth partition wall; A fifth partition wall is provided between the gas release zone and the mud-water separation zone. The bottom of the fifth partition wall does not contact the bottom surfaces of the gas release zone and the mud-water separation zone. The lower portion of the gas release zone is connected to the lower portion of the mud-water separation zone. One side of the mud-water separation zone is arranged parallel to the reaction zone. The bottom of the mud-water separation zone is a conical structure, and a sludge return seam is provided at the lower end of the conical structure; an inclined tube filler or an inclined plate filler is provided in the mud-water separation zone; The sewage treatment area also includes a sludge retention area, which is connected to the mud-water separation area and is provided with a sludge discharge pipe; a sludge return pipe is provided between the sludge retention area and the mud-water mixing area, and a sludge return pipe is provided on the sludge return pump; The sewage treatment area also includes a water outlet area, which is arranged at the front end of the mud-water mixing area, and a water outlet return pump is provided between the water outlet area and the mud-water mixing area; a water outlet overflow pipe is provided between the water outlet area and the mud-water separation area; the water outlet area and the mud-water mixing area are arranged on the same wall, the water outlet area is provided with a water outlet pipe, and the mud-water mixing area is provided with a water inlet pipe; It also includes a top gas collection area, which is arranged above the sewage treatment area.

2. The vertical flow multi-chamber fully mixed anaerobic water treatment device according to claim 1, characterized in that: The top gas collection area includes a sealing cover plate and a top biogas collecting pipe. The sealing cover plate is arranged above the sewage treatment area and is sealed and fixedly connected to the sewage treatment area. The sealing cover plate is provided with a top biogas collecting pipe.

Images