Ceramic ball anaerobic cycle treatment equipment and working method thereof

Abstract

The present invention discloses ceramic ball anaerobic circulation treatment equipment and a working method thereof, belonging to the field of anaerobic treatment of organic wastewater, comprising an anaerobic treatment tank, an anaerobic bacteria circulation mechanism is arranged inside the anaerobic treatment tank, the inner wall of the anaerobic treatment tank is fixedly connected with a wastewater circulation mechanism, the inner wall of the anaerobic treatment tank is fixedly connected with a ceramic ball addition pipe, the outer side of the anaerobic treatment tank is provided with a wastewater addition pipe, and the top of the anaerobic treatment tank is fixedly connected with a discharge pipe, microporous ceramic balls are placed inside the anaerobic treatment tank, and a ceramic ball cleaning plug is plugged at the bottom of the anaerobic treatment tank. When the anaerobic bacteria inside the microporous ceramic balls contact and ferment wastewater inside the anaerobic treatment tank, the circulating water pump connected at the bottom of the anaerobic treatment tank drives the wastewater to be fermented to circulate and ferment inside the anaerobic treatment tank, thereby increasing the contact time between the anaerobic bacteria and the wastewater, and achieving the purpose of increasing the purification rate.

Description

Technical Field

[0001] The invention relates to the technical field of anaerobic treatment of organic wastewater, in particular to ceramic ball anaerobic circulation treatment equipment and a working method thereof. Background Art

[0002] With the continuous development of the times, the total amount of garbage consumed by people every day is increasing. Among them, there will be a large amount of organic waste in kitchen waste and other garbage. Usually, a large amount of leachate will be produced in the process of treating these garbage. It is anaerobically treated so that its fermentation products can be reused to achieve the purpose of environmental protection.

[0003] Ceramic balls with micropores are usually used as solid culture dishes for microbial culture, locking the microbial colonies inside the ceramic balls. At the same time, the adsorption capacity of the ceramic balls can be enhanced by setting micropores. During the anaerobic fermentation of leachate and wastewater generated during the treatment of organic waste, ceramic balls with anaerobic bacteria attached inside will be used to react with them for anaerobically treated.

[0004] At present, when the wastewater generated in the process of organic waste treatment is subjected to anaerobic fermentation in the market, ceramic balls are pre-placed on the top of the filter screen, and the organic matter inside is fermented by the flow of wastewater. However, the direct flow of wastewater will lead to incomplete purification and the appearance of organic residues due to the short contact time between the ceramic balls and the wastewater. At the same time, the position of the ceramic balls is relatively fixed, and there is little or no contact with the wastewater in other positions in the treatment tank, resulting in the anaerobic bacteria being unable to fully mix with the wastewater, resulting in slow treatment of the wastewater in the treatment tank and requiring a lot of time for fermentation.

[0005] Therefore, we propose ceramic ball anaerobic cycle treatment equipment and its working method. Summary of the invention

[0006] The purpose of the present invention is to solve the problems in the prior art that the contact time between microorganisms in ceramic balls and wastewater is short, resulting in incomplete purification and the presence of organic residues, and the ceramic balls are set in a relatively fixed position, resulting in the anaerobic bacteria cannot be fully mixed with the wastewater, slowing down the fermentation speed, and the proposed ceramic ball anaerobic circulation treatment equipment and its working method.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] The ceramic ball anaerobic circulation treatment equipment and the working method thereof include an anaerobic treatment tank, an anaerobic bacteria circulation mechanism is arranged inside the anaerobic treatment tank, a wastewater circulation mechanism is fixedly connected to the inner wall of the anaerobic treatment tank, a ceramic ball addition pipe is fixedly connected to the inner wall of the anaerobic treatment tank, a wastewater addition pipe is arranged outside the anaerobic treatment tank, and a discharge pipe is fixedly connected to the top of the anaerobic treatment tank, microporous ceramic balls are placed inside the anaerobic treatment tank, and a ceramic ball cleaning plug is inserted at the bottom of the anaerobic treatment tank;

[0009] The anaerobic bacteria circulation mechanism includes a servo motor fixedly connected to the top of the anaerobic treatment tank, the output shaft of the servo motor is drivingly connected to a spiral circulation stirring blade, and the outer surface of the spiral circulation stirring blade is fixedly connected to an anti-fall blocking block, the inner wall of the spiral circulation stirring blade is rotatably connected to a circulation conveying pipe, and the inner wall of the circulation conveying pipe is provided with a circulation hole;

[0010] The wastewater circulation mechanism includes a circulation tank fixedly connected to the inner wall of the anaerobic treatment tank, the inner wall of the circulation tank is fixedly connected to the wastewater addition pipe, the inner wall of the circulation tank is fixedly connected to a circulation water pipe, a circulation water pump is arranged inside the circulation water pipe, a sealing cover is fixedly installed on the top of the circulation tank, and a circulation filter layer is fixedly connected to the bottom of the sealing cover.

[0011] Preferably, anaerobic bacterial colonies are attached to the inner wall of the microporous ceramic ball, and a circulating cone is provided on the top of the ceramic ball cleaning slide.

[0012] Preferably, a stirring sleeve drivingly connected to an output shaft of a servo motor is fixedly connected to the top of the spiral circulation stirring blade, and a circulation leakage hole is opened on the inner wall of the stirring sleeve.

[0013] Preferably, the outer surface of the anti-fall blocking block is provided with a sliding arc surface, and the outer surface of the anti-fall blocking block is provided with an anti-fall vertical surface.

[0014] Preferably, the bottom of the circulation conveying pipe is fixedly connected to the inner bottom wall of the anaerobic treatment tank, and the inner wall of the circulation conveying pipe is provided with a drop hole matched to the size of the microporous ceramic balls.

[0015] Preferably, an electromagnetic on-off valve is provided on the inner wall of the circulating water pipe, and a ceramic ball barrier net is clamped on the inner wall of the circulating water pipe.

[0016] Preferably, a rotating handle is rotatably connected to the inner wall of the sealing cover, and a fixed plug rod is slidably connected to the inner wall of the rotating handle, and a circulating barrier net is fixedly connected to the outer surface of the circulating filter layer.

[0017] Preferably, the circulation filter layer is arranged in a ring shape, and a filter space is arranged inside the circulation filter layer.

[0018] The working method of the ceramic ball anaerobic cycle treatment equipment includes the following working steps:

[0019] S1: Raw material addition, adding microporous ceramic balls into the anaerobic treatment tank through the ceramic ball adding tube, and adding them into the circulation tank through the wastewater adding tube, and then pumping the wastewater into the anaerobic treatment tank through the circulating water pump;

[0020] S2: Circulation fermentation, start the servo motor to drive the spiral circulation stirring blade to rotate, transport the microporous ceramic balls to the top of the circulation conveying pipe, and drop them to the inner bottom wall of the anaerobic treatment tank through the circulation holes, completing the microporous ceramic ball fermentation cycle;

[0021] S3: Circulation filtration, the circulating water pump drives the wastewater into the circulation tank to circulate and filter the impurities in the wastewater;

[0022] S4: Wastewater discharge. The anaerobic bacteria inside the anaerobic treatment tank fully react with the organic matter in the wastewater, and the treated wastewater is discharged from the anaerobic treatment tank through the discharge pipe.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. By setting up a circulation tank, a circulation water pipe, a circulation water pump and other devices to cooperate with each other, when the anaerobic bacteria inside the microporous ceramic ball contacts and ferments the wastewater inside the anaerobic treatment tank, the circulating water pump connected at the bottom of the anaerobic treatment tank drives the wastewater to be fermented in the anaerobic treatment tank for circulation fermentation, thereby increasing the contact time between the anaerobic bacteria and the wastewater, and achieving the purpose of improving the purification rate, thereby solving the problem of the short contact time between the microorganisms in the ceramic ball and the wastewater in the prior art mentioned in the above background technology, resulting in incomplete purification and the presence of organic residues.

[0025] 2. By providing a servo motor, a spiral circulation stirring blade, an anti-fall blocking block and other devices to cooperate with each other, when the servo motor drives the spiral circulation stirring blade to rotate, the microporous ceramic balls are driven to rise with the stirring blade, so that the ceramic balls are evenly distributed inside the anaerobic treatment tank, and at the same time, through the circulating conveying pipe connected to the inner side of the stirring blade, the ceramic balls that rise to the top can be dropped onto the inner bottom wall of the anaerobic treatment tank and contact with the wastewater again, so that the wastewater in various places inside the anaerobic treatment tank is anaerobically fermented, and the contact area between the ceramic ball microorganisms and the wastewater is increased, so as to achieve the purpose of increasing the fermentation speed, thereby solving the problem that the ceramic balls in the prior art mentioned in the above background technology are relatively fixed in position, resulting in the inability of anaerobic bacteria to fully mix with the wastewater, slowing down the fermentation speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic diagram of the overall structure of the ceramic ball anaerobic cycle treatment equipment and its working method proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the ceramic ball anaerobic cycle treatment equipment and its working method proposed by the present invention;

[0028] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0029] Figure 4 For the present invention Figure 2 A magnified view of the structure at B in the middle;

[0030] Figure 5 A bottom view of the spiral circulation stirring blade structure of the ceramic ball anaerobic circulation treatment equipment and the working method thereof proposed by the present invention;

[0031] Figure 6 A top view of the spiral circulation stirring blade structure of the ceramic ball anaerobic circulation treatment equipment and the working method thereof proposed by the present invention;

[0032] Figure 7 An exploded diagram of the wastewater circulation structure of the ceramic ball anaerobic circulation treatment equipment and its working method proposed by the present invention;

[0033] Figure 8 This is a flowchart of the working method of the ceramic ball anaerobic cycle treatment equipment proposed by the present invention.

[0034] In the figure: 1. anaerobic treatment tank; 2. anaerobic bacteria circulation mechanism; 21. servo motor; 22. spiral circulation stirring blade; 221. stirring sleeve; 222. circulation leak hole; 23. anti-fall blocking block; 24. circulation delivery pipe; 241. drop hole; 25. circulation hole; 3. wastewater circulation mechanism; 31. circulation tank; 32. circulation water pipe; 321. electromagnetic on-off valve; 322. ceramic ball barrier net; 33. circulation water pump; 34. sealing cover; 341. rotating handle; 342. fixed plug; 35. circulation filter layer; 351. circulation barrier net; 4. ceramic ball addition pipe; 5. wastewater addition pipe; 6. discharge pipe; 7. microporous ceramic ball; 8. ceramic ball cleaning slide plug. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] Reference Figure 1-7 The ceramic ball anaerobic circulation treatment equipment comprises an anaerobic treatment tank 1, an anaerobic bacteria circulation mechanism 2 is arranged inside the anaerobic treatment tank 1, a wastewater circulation mechanism 3 is fixedly connected to the inner wall of the anaerobic treatment tank 1, a ceramic ball adding pipe 4 is fixedly connected to the inner wall of the anaerobic treatment tank 1, a wastewater adding pipe 5 is arranged outside the anaerobic treatment tank 1, and a discharge pipe 6 is fixedly connected to the top of the anaerobic treatment tank 1, microporous ceramic balls 7 are placed inside the anaerobic treatment tank 1, and a ceramic ball cleaning slide plug 8 is inserted at the bottom of the anaerobic treatment tank 1.

[0037] Through the above technical solution, the ceramic ball adding tube 4 can add new microporous ceramic balls 7 to the inside of the anaerobic treatment tank 1, and perform anaerobic fermentation on the organic matter in the wastewater injected by the wastewater adding tube 5, wherein the anaerobic environment can be provided for the anaerobic fermentation colonies by emptying the air inside the anaerobic treatment tank 1 in advance, and the prior art will not be described in detail here. At the same time, when the anaerobic bacteria inside the microporous ceramic balls 7 need to be replaced after a period of reaction, the inactive microporous ceramic balls 7 inside the anaerobic treatment tank 1 can be discharged by removing the ceramic ball cleaning plug 8;

[0038] Based on the above, a solenoid valve is provided inside the discharge tank 6, so that during the cyclic anaerobic fermentation process, the circulating wastewater can enter the wastewater circulation mechanism 3 without discharging the wastewater.

[0039] Embodiment 1

[0040] This embodiment is an anaerobic bacteria circulation mechanism of a ceramic ball anaerobic circulation treatment device;

[0041] like Figure 2-6 As shown, the anaerobic bacteria circulation mechanism 2 includes a servo motor 21 fixedly connected to the top of the anaerobic treatment tank 1, the output shaft of the servo motor 21 is drivingly connected to a spiral circulation stirring blade 22, and the outer surface of the spiral circulation stirring blade 22 is fixedly connected to an anti-fall blocking block 23, the inner wall of the spiral circulation stirring blade 22 is rotatably connected to a circulation conveying pipe 24, and the inner wall of the circulation conveying pipe 24 is provided with a circulation hole 25;

[0042] Through the above technical scheme, when the spiral circulating stirring blade 22 is driven to rotate by the servo motor 21, the microporous ceramic balls 7 are driven to rise along with the stirring blade, so that the ceramic balls are evenly distributed inside the anaerobic treatment tank 1. At the same time, through the circulating conveying pipe 24 connected to the inner side of the stirring blade, the ceramic balls that rise to the top can fall onto the inner bottom wall of the anaerobic treatment tank 1 and contact with the wastewater again, so that the wastewater in various places inside the anaerobic treatment tank 1 is anaerobic fermented, the contact area between the ceramic ball microorganisms and the wastewater is increased, and the purpose of increasing the fermentation speed is achieved.

[0043] Specifically, the outer surface of the anti-fall blocking block 23 is provided with a sliding arc surface, and the outer surface of the anti-fall blocking block 23 is provided with an anti-fall vertical surface.

[0044] Through the above technical solution, the rotation direction of the spiral circulation stirring blade 22 is opposite to the flow direction of the wastewater injection, so that the microporous ceramic balls 7 are driven to the outer surface of the spiral circulation stirring blade 22 during the flow of the wastewater, and then the ceramic balls on the outer surface of the moving stirring blade can be spirally transported upward by the counter-rotating spiral circulation stirring blade 22, during which they come into contact with the injected wastewater and promote anaerobic fermentation.

[0045] Based on the above, when the ceramic ball falls on the surface of the stirring blade, the sliding arc surface facing the flow direction of the water can provide a path for the movement of the ceramic ball, and at the same time, the anti-fall vertical surface on the other side blocks the ceramic ball falling inside it, preventing it from falling directly along the stirring blade to the anaerobic treatment tank 1. wall.

[0046] Specifically, anaerobic bacteria are attached to the inner wall of the microporous ceramic ball 7, a circulation cone is provided on the top of the ceramic ball cleaning plug 8, a stirring sleeve 221 is fixedly connected to the top of the spiral circulation stirring blade 22, and a circulation leak hole 222 is provided on the inner wall of the stirring sleeve 221. The bottom of the circulation conveying pipe 24 is fixedly connected to the inner bottom wall of the anaerobic treatment tank 1, and a drop hole 241 matching the size of the microporous ceramic ball 7 is provided on the inner wall of the circulation conveying pipe 24.

[0047] Through the above technical solution, after the ceramic ball rises to the top of the stirring blade, it enters the interior of the circulation conveying pipe 24 through the circulation leak hole 222, then falls along the circulation hole 25 to the top of the ceramic ball cleaning slide 8, slides outward through the circulation cone surface to the drop hole 241, and falls into the interior of the anaerobic treatment tank 1. The stirring blades are rotated and lifted to the circulation leak hole 222 again, completing the circulation rising operation of the ceramic balls inside the anaerobic treatment tank 1.

[0048] Embodiment 2

[0049] This embodiment is a wastewater circulation mechanism of a ceramic ball anaerobic circulation treatment device;

[0050] like Figure 2 and Figure 7 As shown, the wastewater circulation mechanism 3 includes a circulation tank 31 fixedly connected to the inner wall of the anaerobic treatment tank 1, the inner wall of the circulation tank 31 is fixedly connected to the wastewater addition pipe 5, the inner wall of the circulation tank 31 is fixedly connected to a circulation water pipe 32, a circulation water pump 33 is arranged inside the circulation water pipe 32, a sealing cover 34 is fixedly installed on the top of the circulation tank 31, and a circulation filter layer 35 is fixedly connected to the bottom of the sealing cover 34.

[0051] Through the above technical solution, when the anaerobic bacteria inside the microporous ceramic balls 7 contact and ferment the wastewater inside the anaerobic treatment tank 1, the circulating water pump 33 connected to the bottom of the anaerobic treatment tank 1 drives the wastewater to be fermented to circulate and ferment inside the anaerobic treatment tank 1, thereby increasing the contact time between the anaerobic bacteria and the wastewater, thereby achieving the purpose of improving the purification rate.

[0052] Specifically, an electromagnetic on-off valve 321 is provided on the inner wall of the circulating water pipe 32 , and a ceramic ball barrier net 322 is clamped on the inner wall of the circulating water pipe 32 .

[0053] Through the above technical solution, a sealing plug is threadedly connected to the inner wall of the sealing cover 34. After the anaerobic bacteria and the wastewater are in contact with each other for anaerobically fermented for a period of time, the electromagnetic on-off valve 321 is closed, and the sealing plug is opened to discharge the fermented sewage from the discharge pipe 6. When the wastewater circulates in the circulating water pipe 32, the ceramic balls are blocked by the ceramic ball barrier net 322 to prevent them from flowing into the circulation tank 31 with the water flow.

[0054] Specifically, the inner wall of the sealing cover 34 is rotatably connected to a rotating handle 341, and the inner wall of the rotating handle 341 is slidably connected to a fixed plug rod 342, the outer surface of the circulating filter layer 35 is fixedly connected to a circulating barrier net 351, the circulating filter layer 35 is arranged in a ring shape, and a filtering space is arranged on the inner side of the circulating filter layer 35.

[0055] Through the above technical solution, the circulation barrier net 351 is rotatably connected to the inner wall of the circulation tank 31, and the water flow in and out of the filter port of the circulation filter layer 35 is divided into multiple parts through the circulation barrier net 351. When the annular circulation barrier net 351 cannot continue to filter due to blockage by debris, the annular circulation barrier net 351 can be driven to rotate by twisting the rotating handle 341, and the new filter port can be rotated to the direction of water flow, so that the circulation filter layer 35 can be quickly replaced.

[0056] Embodiment 3

[0057] This embodiment is a working method of the ceramic ball anaerobic cycle treatment equipment;

[0058] The working method of the ceramic ball anaerobic cycle treatment equipment includes the following working steps:

[0059] S1: Raw material addition, microporous ceramic balls 7 are added into the anaerobic treatment tank 1 through the ceramic ball addition pipe 4, and at the same time, they are added into the circulation tank 31 through the wastewater addition pipe 5, and then the wastewater is pumped into the anaerobic treatment tank 1 through the circulation water pump 33;

[0060] S2: Circular fermentation, start the servo motor 21 to drive the spiral circulation stirring blade 22 to rotate, transport the microporous ceramic balls 7 to the top of the circulation conveying pipe 24, and drop them to the inner bottom wall of the anaerobic treatment tank 1 through the circulation hole 25, completing the fermentation cycle of the microporous ceramic balls 7;

[0061] S3: Circulation filtration, the circulating water pump 33 drives the wastewater into the circulation tank 31 to circulate and filter the impurities in the wastewater;

[0062] S4: wastewater discharge. The anaerobic bacteria inside the anaerobic treatment tank 1 fully react with the organic matter in the wastewater, and the treated wastewater is discharged from the anaerobic treatment tank 1 through the discharge pipe 6.

[0063] Through the above technical solution, such as Figure 8 As shown, after the wastewater is added to the anaerobic treatment tank 1, the wastewater circulation mechanism 3 can drive the wastewater to circulate through the anaerobic treatment tank 1, and then the circulating wastewater is subjected to anaerobic fermentation treatment through the anaerobic bacteria circulation mechanism 2, so as to efficiently remove the organic matter in the wastewater, and complete the anaerobic fermentation cycle operation of the organic matter in the wastewater.

[0064] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ceramic ball anaerobic cycle treatment device, comprising an anaerobic treatment tank (1), characterized in that: The anaerobic treatment tank (1) is provided with an anaerobic bacteria circulation mechanism (2) inside, the inner wall of the anaerobic treatment tank (1) is fixedly connected to a wastewater circulation mechanism (3), the inner wall of the anaerobic treatment tank (1) is fixedly connected to a ceramic ball addition pipe (4), the outer side of the anaerobic treatment tank (1) is provided with a wastewater addition pipe (5), and the top of the anaerobic treatment tank (1) is fixedly connected to a discharge pipe (6), microporous ceramic balls (7) are contained inside the anaerobic treatment tank (1), and a ceramic ball cleaning plug (8) is inserted at the bottom of the anaerobic treatment tank (1); The anaerobic bacteria circulation mechanism (2) comprises a servo motor (21) fixedly connected to the top of the anaerobic treatment tank (1); the output shaft of the servo motor (21) is drivingly connected to a spiral circulation stirring blade (22); the outer surface of the spiral circulation stirring blade (22) is fixedly connected to an anti-fall blocking block (23); the inner wall of the spiral circulation stirring blade (22) is rotatably connected to a circulation conveying pipe (24); and the inner wall of the circulation conveying pipe (24) is provided with a circulation hole (25); The wastewater circulation mechanism (3) comprises a circulation tank (31) fixedly connected to the inner wall of the anaerobic treatment tank (1); the inner wall of the circulation tank (31) is fixedly connected to the wastewater addition pipe (5); the inner wall of the circulation tank (31) is fixedly connected to a circulation water pipe (32); a circulation water pump (33) is arranged inside the circulation water pipe (32); a sealing cover (34) is fixedly installed on the top of the circulation tank (31); and a circulation filter layer (35) is fixedly connected to the bottom of the sealing cover (34).

2. The ceramic ball anaerobic cycle treatment equipment according to claim 1 is characterized in that: Anaerobic bacterial colonies are attached to the inner wall of the microporous ceramic ball (7), and a circulating cone surface is provided on the top of the ceramic ball cleaning slide plug (8).

3. The ceramic ball anaerobic cycle treatment equipment according to claim 2 is characterized in that: A stirring sleeve (221) drivingly connected to an output shaft of a servo motor (21) is fixedly connected to the top of the spiral circulation stirring blade (22), and a circulation leakage hole (222) is provided on the inner wall of the stirring sleeve (221).

4. The ceramic ball anaerobic cycle treatment equipment according to claim 1 is characterized in that: The outer surface of the anti-fall blocking block (23) is provided with a sliding arc surface, and the outer surface of the anti-fall blocking block (23) is provided with an anti-fall vertical surface.

5. The ceramic ball anaerobic cycle treatment equipment according to claim 1 is characterized in that: The bottom of the circulation conveying pipe (24) is fixedly connected to the inner bottom wall of the anaerobic treatment tank (1), and the inner wall of the circulation conveying pipe (24) is provided with a drop hole (241) that is matched in size to the microporous ceramic ball (7).

6. The ceramic ball anaerobic cycle treatment equipment according to claim 1 is characterized in that: An electromagnetic on-off valve (321) is provided on the inner wall of the circulating water pipe (32), and a ceramic ball barrier net (322) is clamped on the inner wall of the circulating water pipe (32).

7. The ceramic ball anaerobic cycle treatment equipment according to claim 1 is characterized in that: The inner wall of the sealing cover (34) is rotatably connected to a rotating handle (341), and the inner wall of the rotating handle (341) is slidably connected to a fixed plug rod (342), and the outer surface of the circulating filter layer (35) is fixedly connected to a circulating barrier net (351).

8. The ceramic ball anaerobic cycle treatment equipment according to claim 7 is characterized in that: The circulating filter layer (35) is arranged in a ring shape, and a filtering space is arranged inside the circulating filter layer (35).

9. A method for operating a ceramic ball anaerobic cycle treatment device, using the device according to any one of claims 1 to 8, characterized in that: The following steps are included: S1: raw material addition, adding microporous ceramic balls (7) into the anaerobic treatment tank (1) through the ceramic ball addition tube (4), adding wastewater into the circulation tank (31) through the wastewater addition tube (5), and then pumping the wastewater into the anaerobic treatment tank (1) through the circulation water pump (33); S2: Circular fermentation, starting the servo motor (21) to drive the spiral circulation stirring blade (22) to rotate, transporting the microporous ceramic balls (7) to the top of the circulation transport pipe (24), and dropping them onto the inner bottom wall of the anaerobic treatment tank (1) through the circulation holes (25), thus completing the fermentation cycle of the microporous ceramic balls (7); S3: Circulation filtration, where the circulating water pump (33) drives the wastewater into the circulation tank (31) to circulate and filter the impurities in the wastewater; S4: The wastewater is discharged. The anaerobic bacteria in the anaerobic treatment tank (1) fully react with the organic matter in the wastewater, and the treated wastewater is discharged from the anaerobic treatment tank (1) through the discharge pipe (6).

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