White spirit brewing wastewater anaerobic fermentation byproduct production device

Abstract

The utility model relates to a production device for a white spirit brewing wastewater anaerobic fermentation byproduct. The production device comprises an anaerobic hollow fiber membrane bioreactor, the anaerobic hollow fiber membrane bioreactor comprises an anaerobic hollow fiber membrane bioreactor tank body as well as solid-phase separation equipment, a hollow fiber membrane and an annular aeration pipe which are arranged in the anaerobic hollow fiber membrane bioreactor tank body; the solid-phase separation equipment comprises a solid-phase separation inner cylinder and a solid-phase separation outer cylinder, the upper end of the solid-phase separation inner cylinder is connected with the top of the anaerobic hollow fiber membrane bioreactor tank body, the solid-phase separation outer cylinder is arranged on the outer side of the upper part of the solid-phase separation inner cylinder in a surrounding manner, and a liquid flow channel is formed in the solid-phase separation inner cylinder; the hollow fiber membrane and the annular aeration pipe are arranged on the outer side of the solid-phase separation outer cylinder in a surrounding mode, and the annular aeration pipe is located below the hollow fiber membrane. According to the device, part of short-chain fatty acid in the white spirit brewing wastewater can be temporarily separated, and the treatment quality of the white spirit brewing wastewater can be better guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquor brewing wastewater treatment, and specifically relates to a liquor brewing wastewater anaerobic fermentation byproduct production device. Background Art

[0002] A large amount of high-concentration organic wastewater is generated during the liquor brewing process. Studies have shown that a Xiaoqu-flavor liquor factory with an annual output of 20,000 tons uses 1,009 tons of water per day, and most of the water used becomes liquor brewing wastewater. The treatment of high-concentration liquor wastewater is difficult and costly. It is estimated that the treatment cost of ordinary brewing wastewater exceeds 20 yuan / m 3 , and the cost of treating high-concentration liquor wastewater is as high as nearly 600 yuan / m 3 , is domestic sewage (generally less than 2 yuan / m 3 ) times.

[0003] Liquor brewing wastewater has the characteristics of low pH value, high chroma, high nitrogen and phosphorus, and is rich in small molecule alcohols, acids, aldehydes and other substances. Liquor brewing wastewater has attracted much attention because of its good biodegradability and easy biodegradation. Studies have found that liquor wastewater has a certain potential for resource utilization, which is of great significance to the wastewater treatment of liquor enterprises and even the development of the entire industry. Short-chain fatty acids, a by-product of hydrolysis and acidification during the anaerobic fermentation of liquor brewing wastewater, are an important carbon source for back-end denitrification and phosphorus removal. However, due to the limited short-term consumption capacity of the carbon source of the back-end denitrification and phosphorus removal process, the excess carbon source cannot be consumed in time. How to efficiently and conveniently realize the resource utilization of liquor brewing wastewater has become a key issue that needs to be solved.

[0004] Therefore, it is necessary to design a device for producing anaerobic fermentation by-products of liquor brewing wastewater to solve the above problems. Summary of the invention

[0005] The utility model aims to provide a device for producing byproducts of anaerobic fermentation of liquor brewing wastewater, so as to solve the problem of how to efficiently and conveniently realize resource utilization of liquor brewing wastewater proposed in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a device for producing byproducts of anaerobic fermentation of liquor brewing wastewater, the device comprising an anaerobic hollow fiber membrane bioreactor;

[0007] The anaerobic hollow fiber membrane bioreactor comprises an anaerobic hollow fiber membrane bioreactor tank body, a solid phase separation device, a hollow fiber membrane, and an annular aeration tube, and the solid phase separation device, the hollow fiber membrane, and the annular aeration tube are all arranged inside the anaerobic hollow fiber membrane bioreactor tank body;

[0008] The solid phase separation equipment comprises a solid phase separation inner cylinder and a solid phase separation outer cylinder. The upper end of the solid phase separation inner cylinder is connected to the top of the anaerobic hollow fiber membrane bioreactor tank body. The solid phase separation outer cylinder is arranged around the outer side of the upper part of the solid phase separation inner cylinder, and a liquid flow channel is arranged at a position on the solid phase separation inner cylinder corresponding to the upper part of the solid phase separation outer cylinder. The hollow fiber membrane and the annular aeration pipe are both arranged around the outer side of the solid phase separation outer cylinder, and the annular aeration pipe is located below the hollow fiber membrane.

[0009] The top of the anaerobic hollow fiber membrane bioreactor tank body is provided with an anaerobic hollow fiber membrane bioreactor feed port, an anaerobic hollow fiber membrane bioreactor exhaust port and an anaerobic hollow fiber membrane bioreactor water outlet, and the anaerobic hollow fiber membrane bioreactor feed port is located above the solid phase separation inner cylinder, and the bottom of the anaerobic hollow fiber membrane bioreactor tank body is provided with an anaerobic hollow fiber membrane bioreactor discharge port.

[0010] An anaerobic hollow fiber membrane bioreactor stirring paddle is arranged inside the solid phase separation inner cylinder, and the anaerobic hollow fiber membrane bioreactor stirring paddle is connected to a stirring motor arranged above the top of the anaerobic hollow fiber membrane bioreactor tank body;

[0011] The water inlet of the anaerobic hollow fiber membrane bioreactor arranged at the lower part of the outer side of the anaerobic hollow fiber membrane bioreactor tank body is communicated with the interior of the solid phase separation inner cylinder through a pipeline.

[0012] In a specific embodiment, the solid phase separation inner cylinder includes an inner cylinder upper section, an inner cylinder middle section and an inner cylinder lower section which are integrally formed and distributed from top to bottom. The inner cylinder upper section and the inner cylinder lower section are both cylindrical, the inner cylinder middle section is a frustum, and the diameter of the inner cylinder lower section is greater than the diameter of the inner cylinder upper section.

[0013] In a specific embodiment, the upper end of the solid phase separation outer cylinder is connected to the upper part of the solid phase separation inner cylinder, and the liquid flow channel is located below the connection between the upper end of the solid phase separation outer cylinder and the solid phase separation inner cylinder.

[0014] In a specific embodiment, the distance between the hollow fiber membrane and the solid phase separation outer cylinder is 6 to 8 cm.

[0015] In a specific embodiment, the distance between the top of the annular aeration tube and the bottom of the hollow fiber membrane is greater than 5 cm.

[0016] In a specific embodiment, the anaerobic fermentation by-product production device of liquor brewing wastewater further includes an acid production reactor, an anaerobic ceramic membrane bioreactor, an integrated denitrification and phosphorus removal device, a gas washing device, a first air pump, a second air pump, and a sludge circulation pump;

[0017] The acid production reactor water outlet of the acid production reactor is connected to the anaerobic ceramic membrane bioreactor water inlet of the anaerobic ceramic membrane bioreactor, the anaerobic ceramic membrane bioreactor water outlet of the anaerobic ceramic membrane bioreactor is connected to the anaerobic hollow fiber membrane bioreactor water inlet of the anaerobic hollow fiber membrane bioreactor, and the anaerobic hollow fiber membrane bioreactor water outlet of the anaerobic hollow fiber membrane bioreactor is connected to the water inlet of the integrated denitrification and phosphorus removal device;

[0018] The feed inlet of the sludge circulation pump is connected to the discharge port of the anaerobic ceramic membrane bioreactor arranged at the bottom of the anaerobic ceramic membrane bioreactor, and the discharge port of the sludge circulation pump is connected to the water inlet of the acid production reactor;

[0019] The air inlet of the scrubbing device is respectively connected to the exhaust port of the acid producing reactor of the acid producing reactor and the exhaust port of the anaerobic ceramic membrane bioreactor of the anaerobic ceramic membrane bioreactor, and the air outlet of the scrubbing device is respectively connected to the air inlet of the first air pump and the air inlet of the second air pump, the air outlet of the first air pump is connected to the air inlet of the anaerobic ceramic membrane bioreactor of the anaerobic ceramic membrane bioreactor, the air outlet of the second air pump is connected to the air inlet of the anaerobic hollow fiber membrane bioreactor of the anaerobic hollow fiber membrane bioreactor, and the air inlet of the anaerobic hollow fiber membrane bioreactor is connected to the annular aeration pipe.

[0020] In a specific embodiment, the acid generating reactor comprises an acid generating reactor tank body and an acid generating reactor stirring paddle disposed in the acid generating reactor tank body.

[0021] In a specific embodiment, the anaerobic ceramic membrane bioreactor includes an anaerobic ceramic membrane bioreactor tank body and an aeration strip and an anaerobic ceramic flat membrane arranged in the anaerobic ceramic membrane bioreactor tank body, the aeration strip is arranged at the bottom of the anaerobic ceramic membrane bioreactor tank body, and the anaerobic ceramic flat membrane is arranged above the aeration strip.

[0022] In a specific embodiment, the pore size of the anaerobic ceramic flat membrane is the pore size of an ultrafiltration membrane.

[0023] In a specific embodiment, the pore size of the hollow fiber membrane is the pore size of a microfiltration membrane; and an anaerobic hollow fiber membrane bioreactor air inlet is arranged on the outside of the anaerobic hollow fiber membrane bioreactor tank.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] The utility model can, according to the water quality characteristics of liquor brewing wastewater, temporarily separate the short-chain fatty acids that cannot be treated in time during the liquor brewing wastewater treatment process from the discharge port of the anaerobic hollow fiber membrane bioreactor, and put them back into treatment after the subsequent equipment is idle, thereby reducing the fluctuation of the liquor brewing wastewater treatment process and better ensuring the treatment quality of the liquor brewing wastewater.

[0026] The utility model combines the membrane technology characteristics with the adsorption characteristics of new materials, adheres to the principles of green, ecological and environmental protection, and is designed and developed according to the water quality characteristics of liquor brewing wastewater. It can not only achieve the reduction and resource utilization of liquor brewing wastewater, but also serve as a means of separating and extracting short-chain fatty acids from fermentation liquid, thereby realizing the formation of pure and efficient denitrification solid carbon source.

[0027] The solid phase separation device of the present invention is composed of a solid phase separation inner cylinder and a solid phase separation outer cylinder, thereby forming a separation zone and a reaction zone to play different functions, which can achieve the functions of slowing down membrane pollution, accelerating the rate of adsorption precipitation generation, and facilitating the separation of layered double metal hydroxide-short-chain fatty acid precipitation and filtrate.

[0028] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of an anaerobic ceramic membrane bioreactor according to an embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of an acid generating reactor according to an embodiment of the utility model;

[0033] Figure 4 It is a schematic diagram of an anaerobic hollow fiber membrane bioreactor according to an embodiment of the utility model;

[0034] Among them, 1. Acid reactor; 11. Screw stirring paddle; 12. Water inlet of acid reactor; 13. Exhaust port of acid reactor; 14. Water outlet of acid reactor; 2. Anaerobic ceramic membrane bioreactor; 21. Aeration strip; 22. Anaerobic ceramic flat membrane; 23. Water outlet of anaerobic ceramic membrane bioreactor; 24. Water inlet of anaerobic ceramic membrane bioreactor; 25. Exhaust port of anaerobic ceramic membrane bioreactor; 26. Air inlet of anaerobic ceramic membrane bioreactor; 27. Discharge port of anaerobic ceramic membrane bioreactor; 3. Anaerobic hollow fiber membrane bioreactor; 31. Anaerobic hollow fiber membrane bioreactor tank; 32. Solid phase separation equipment; 33 , hollow fiber membrane; 34, annular aeration pipe; 35, anaerobic hollow fiber membrane bioreactor stirring paddle; 311, anaerobic hollow fiber membrane bioreactor feed inlet; 312, anaerobic hollow fiber membrane bioreactor discharge port; 313, anaerobic hollow fiber membrane bioreactor exhaust port; 314, anaerobic hollow fiber membrane bioreactor water outlet; 315, anaerobic hollow fiber membrane bioreactor water inlet; 316, anaerobic hollow fiber membrane bioreactor air inlet; 321, solid phase separation outer cylinder; 322, solid phase separation inner cylinder; 4, integrated denitrification and phosphorus removal device; 5, scrubbing device; 6, first air pump; 7, second air pump; 8, sludge circulation pump. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0036] Example 1

[0037] The utility model provides a device for producing byproducts of anaerobic fermentation of liquor brewing wastewater, the device comprising an anaerobic hollow fiber membrane bioreactor 3;

[0038] The anaerobic hollow fiber membrane bioreactor 3 includes an anaerobic hollow fiber membrane bioreactor tank 31, a solid phase separation device 32, a hollow fiber membrane 33, and an annular aeration pipe 34, and the solid phase separation device 32, the hollow fiber membrane 33, and the annular aeration pipe 34 are all arranged inside the anaerobic hollow fiber membrane bioreactor tank 31;

[0039] The solid phase separation device 32 comprises a solid phase separation inner cylinder 322 and a solid phase separation outer cylinder 321. The upper end of the solid phase separation inner cylinder 322 is connected to the top of the anaerobic hollow fiber membrane bioreactor tank 31. The solid phase separation outer cylinder 321 is arranged around the outer side of the upper part of the solid phase separation inner cylinder 322, and a liquid flow channel is arranged at a position on the solid phase separation inner cylinder 322 corresponding to the upper part of the solid phase separation outer cylinder; the hollow fiber membrane 33 and the annular aeration pipe 34 are both arranged around the outer side of the solid phase separation outer cylinder 321, and the annular aeration pipe 34 is located below the hollow fiber membrane 33;

[0040] The top of the anaerobic hollow fiber membrane bioreactor tank body 31 is provided with an anaerobic hollow fiber membrane bioreactor feed port 311, an anaerobic hollow fiber membrane bioreactor exhaust port 313 and an anaerobic hollow fiber membrane bioreactor water outlet 314, and the anaerobic hollow fiber membrane bioreactor feed port is located above the solid phase separation inner cylinder 322, and the bottom of the anaerobic hollow fiber membrane bioreactor tank body 31 is provided with an anaerobic hollow fiber membrane bioreactor discharge port 312.

[0041] The solid phase separation inner cylinder 322 is provided with an anaerobic hollow fiber membrane bioreactor stirring paddle 35, and the anaerobic hollow fiber membrane bioreactor stirring paddle 35 is connected to a stirring motor provided above the top of the anaerobic hollow fiber membrane bioreactor tank body;

[0042] The anaerobic hollow fiber membrane bioreactor water inlet 315 arranged at the lower part of the outer side of the anaerobic hollow fiber membrane bioreactor tank body is communicated with the interior of the solid phase separation inner cylinder through a pipeline.

[0043] The solid phase separation device 32 can separate solids, liquids and gases.

[0044] The solid phase separation inner cylinder 322 includes an inner cylinder upper section, an inner cylinder middle section and an inner cylinder lower section which are integrally formed and distributed from top to bottom. The inner cylinder upper section and the inner cylinder lower section are both cylindrical, the inner cylinder middle section is a truncated cone, and the diameter of the inner cylinder lower section is greater than the diameter of the inner cylinder upper section.

[0045] The upper end of the solid phase separation outer cylinder 321 is connected to the upper part of the solid phase separation inner cylinder 322, and the liquid flow channel is located below the connection between the upper end of the solid phase separation outer cylinder and the solid phase separation inner cylinder. The liquor brewing wastewater being treated flows upward from the lower part of the solid phase separation inner cylinder 322, flows through the liquid flow channel into the area between the solid phase separation outer cylinder 321 and the solid phase separation inner cylinder 322, and then flows to the outside of the solid phase separation device 32, forming a tortuous route, making it easier for the layered double metal hydroxide and the short-chain fatty acids to be adsorbed and precipitated.

[0046] The distance between the hollow fiber membrane 33 and the solid phase separation outer cylinder 321 is 6 to 8 cm. A reasonable distance makes the treatment efficiency higher.

[0047] The distance between the top of the annular aeration tube 34 and the bottom of the hollow fiber membrane 33 is greater than 5 cm. The distance is maintained to prevent aeration from impacting the hollow fiber membrane 33.

[0048] The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater also includes an acid production reactor 1, an anaerobic ceramic membrane bioreactor 2, an integrated denitrification and phosphorus removal device 4, a gas washing device 5, a first air pump 6, a second air pump 7, and a sludge circulation pump 8;

[0049] The acid generating reactor 1 comprises an acid generating reactor tank body and an acid generating reactor stirring paddle 11 arranged in the acid generating reactor tank body, and also comprises an acid generating reactor water inlet 12, an acid generating reactor exhaust port 13, and an acid generating reactor water outlet 14 arranged on the acid generating reactor tank body.

[0050] The acid-producing reactor water outlet 14 of the acid-producing reactor 1 is connected to the anaerobic ceramic membrane bioreactor water inlet 24 of the anaerobic ceramic membrane bioreactor 2, the anaerobic ceramic membrane bioreactor water outlet 23 of the anaerobic ceramic membrane bioreactor 2 is connected to the anaerobic hollow fiber membrane bioreactor water inlet 315 of the anaerobic hollow fiber membrane bioreactor 3, and the anaerobic hollow fiber membrane bioreactor water outlet 314 of the anaerobic hollow fiber membrane bioreactor 3 is connected to the water inlet of the integrated denitrification and phosphorus removal device 4;

[0051] The feed port of the sludge circulation pump 8 is connected to the anaerobic ceramic membrane bioreactor discharge port 27 arranged at the bottom of the anaerobic ceramic membrane bioreactor 2, and the discharge port of the sludge circulation pump 8 is connected to the acid production reactor water inlet 12 of the acid production reactor 1;

[0052] The air inlet of the scrubber 5 is connected to the acid reactor exhaust port 13 of the acid reactor 1 and the anaerobic ceramic membrane bioreactor exhaust port 25 of the anaerobic ceramic membrane bioreactor 2, respectively. The air outlet of the scrubber 5 is connected to the air inlet of the first air pump 6 and the air inlet of the second air pump 7, respectively. The air outlet of the first air pump 6 is connected to the anaerobic ceramic membrane bioreactor air inlet 26 of the anaerobic ceramic membrane bioreactor 2, and the air outlet of the second air pump 7 is connected to the anaerobic hollow fiber membrane bioreactor air inlet 316 of the anaerobic hollow fiber membrane bioreactor 3. The anaerobic hollow fiber membrane bioreactor air inlet 316 is connected to the annular aeration pipe 34. The scrubber 5 makes full use of the produced gas.

[0053] The anaerobic ceramic membrane bioreactor 2 includes an anaerobic ceramic membrane bioreactor tank body and an aeration strip 21 and an anaerobic ceramic flat membrane 22 arranged in the anaerobic ceramic membrane bioreactor tank body. The aeration strip 21 is arranged at the bottom of the anaerobic ceramic membrane bioreactor tank body, and the anaerobic ceramic flat membrane 22 is arranged above the aeration strip 21.

[0054] The pore size of the anaerobic ceramic flat membrane 22 is the pore size of an ultrafiltration membrane.

[0055] The pore size of the hollow fiber membrane is the pore size of a microfiltration membrane; an anaerobic hollow fiber membrane bioreactor air inlet 316 is arranged outside the anaerobic hollow fiber membrane bioreactor tank.

[0056] When used, the liquor brewing wastewater is first pretreated, and the pretreatment includes removing suspended impurities in the water and adding hydrochloric acid to acidify the inlet water so that the pH value is less than 5; the pretreated liquor brewing wastewater enters the acid-producing reactor 1 to undergo hydrolysis and acidification reactions with hydrolytic bacteria and acid-producing bacteria to produce short-chain fatty acids, and then is discharged from the acid-producing reactor outlet 14 into the anaerobic ceramic membrane bioreactor 2; in the anaerobic ceramic membrane bioreactor 2, the mud and water are separated by the anaerobic ceramic flat membrane 22, and the filtrate of the anaerobic ceramic flat membrane 22 enters the anaerobic hollow fiber membrane bioreactor In the anaerobic hollow fiber membrane bioreactor 3, layered double metal hydroxide is added through the anaerobic hollow fiber membrane bioreactor feed port 311, the layered double metal hydroxide is adsorbed with short-chain fatty acids to generate layered double metal hydroxide-short-chain fatty acid precipitates, and the layered double metal hydroxide-short-chain fatty acid precipitates are discharged and collected from the anaerobic hollow fiber membrane bioreactor discharge port 312; the filtrate of the anaerobic hollow fiber membrane bioreactor 3 is discharged into the integrated denitrification and phosphorus removal device 4 for denitrification and phosphorus removal treatment and then discharged after meeting the standards.

[0057] The layered double metal hydroxide-short-chain fatty acid precipitate obtained by treating liquor brewing wastewater with the utility model only needs simple extraction and can be put into the urban sewage treatment system as a high-quality carbon source.

[0058] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions and substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A device for producing byproducts from anaerobic fermentation of liquor brewing wastewater, characterized in that: The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater comprises an anaerobic hollow fiber membrane bioreactor (3); The anaerobic hollow fiber membrane bioreactor (3) comprises an anaerobic hollow fiber membrane bioreactor tank body (31), a solid phase separation device (32), a hollow fiber membrane (33), and an annular aeration pipe (34), and the solid phase separation device (32), the hollow fiber membrane (33), and the annular aeration pipe (34) are all arranged inside the anaerobic hollow fiber membrane bioreactor tank body (31); The solid phase separation device (32) comprises a solid phase separation inner cylinder (322) and a solid phase separation outer cylinder (321); the upper end of the solid phase separation inner cylinder (322) is connected to the top of the anaerobic hollow fiber membrane bioreactor tank (31); the solid phase separation outer cylinder (321) is arranged around the outer side of the upper part of the solid phase separation inner cylinder (322); and a liquid flow channel is provided at a position on the solid phase separation inner cylinder (322) corresponding to the upper part of the solid phase separation outer cylinder; the hollow fiber membrane (33) and the annular aeration pipe (34) are both arranged around the outer side of the solid phase separation outer cylinder (321), and the annular aeration pipe (34) is located below the hollow fiber membrane (33); The top of the anaerobic hollow fiber membrane bioreactor tank body (31) is provided with an anaerobic hollow fiber membrane bioreactor feed port (311), an anaerobic hollow fiber membrane bioreactor exhaust port (313) and an anaerobic hollow fiber membrane bioreactor water outlet (314), and the anaerobic hollow fiber membrane bioreactor feed port is located above the solid phase separation inner cylinder (322), and the bottom of the anaerobic hollow fiber membrane bioreactor tank body (31) is provided with an anaerobic hollow fiber membrane bioreactor discharge port (312); An anaerobic hollow fiber membrane bioreactor stirring paddle (35) is arranged inside the solid phase separation inner cylinder (322), and the anaerobic hollow fiber membrane bioreactor stirring paddle (35) is connected to a stirring motor arranged above the top of the anaerobic hollow fiber membrane bioreactor tank body; The anaerobic hollow fiber membrane bioreactor water inlet (315) arranged at the lower part of the outer side of the anaerobic hollow fiber membrane bioreactor tank body is communicated with the interior of the solid phase separation inner cylinder through a pipeline.

2. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The solid phase separation inner cylinder (322) comprises an inner cylinder upper section, an inner cylinder middle section and an inner cylinder lower section which are integrally formed and distributed from top to bottom. The inner cylinder upper section and the inner cylinder lower section are both cylindrical, the inner cylinder middle section is truncated cone-shaped, and the diameter of the inner cylinder lower section is greater than the diameter of the inner cylinder upper section.

3. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The upper end of the solid phase separation outer cylinder (321) is connected to the upper part of the solid phase separation inner cylinder (322), and the liquid flow channel is located below the connection between the upper end of the solid phase separation outer cylinder and the solid phase separation inner cylinder.

4. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The distance between the hollow fiber membrane (33) and the solid phase separation outer cylinder (321) is 6 to 8 cm.

5. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The distance between the top of the annular aeration tube (34) and the bottom of the hollow fiber membrane (33) is greater than 5 cm.

6. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater also includes an acid production reactor (1), an anaerobic ceramic membrane bioreactor (2), an integrated denitrification and phosphorus removal device (4), a gas scrubber (5), a first air pump (6), a second air pump (7), and a sludge circulation pump (8); The acid-producing reactor water outlet (14) of the acid-producing reactor (1) is connected to the anaerobic ceramic membrane bioreactor water inlet (24) of the anaerobic ceramic membrane bioreactor (2), the anaerobic ceramic membrane bioreactor water outlet (23) of the anaerobic ceramic membrane bioreactor (2) is connected to the anaerobic hollow fiber membrane bioreactor water inlet (315) of the anaerobic hollow fiber membrane bioreactor (3), and the anaerobic hollow fiber membrane bioreactor water outlet (314) of the anaerobic hollow fiber membrane bioreactor (3) is connected to the water inlet of the integrated denitrification and phosphorus removal device (4); The feed port of the sludge circulation pump (8) is connected to the anaerobic ceramic membrane bioreactor discharge port (27) arranged at the bottom of the anaerobic ceramic membrane bioreactor (2), and the discharge port of the sludge circulation pump (8) is connected to the acid production reactor water inlet (12) of the acid production reactor (1); The air inlet of the scrubbing device (5) is respectively connected to the acid generating reactor exhaust port (13) of the acid generating reactor (1) and the anaerobic ceramic membrane bioreactor exhaust port (25) of the anaerobic ceramic membrane bioreactor (2); the air outlet of the scrubbing device (5) is respectively connected to the air inlet of the first air pump (6) and the air inlet of the second air pump (7); the air outlet of the first air pump (6) is connected to the anaerobic ceramic membrane bioreactor air inlet (26) of the anaerobic ceramic membrane bioreactor (2); the air outlet of the second air pump (7) is connected to the anaerobic hollow fiber membrane bioreactor air inlet (316) of the anaerobic hollow fiber membrane bioreactor (3); and the anaerobic hollow fiber membrane bioreactor air inlet (316) is connected to the annular aeration pipe (34).

7. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 6, characterized in that: The acid generating reactor (1) comprises an acid generating reactor tank body and an acid generating reactor stirring paddle (11) arranged in the acid generating reactor tank body.

8. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 6, characterized in that: The anaerobic ceramic membrane bioreactor (2) comprises an anaerobic ceramic membrane bioreactor tank body, an aeration strip (21) and an anaerobic ceramic flat membrane (22) arranged in the anaerobic ceramic membrane bioreactor tank body, the aeration strip (21) being arranged at the bottom of the anaerobic ceramic membrane bioreactor tank body, and the anaerobic ceramic flat membrane (22) being arranged above the aeration strip (21).

9. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 8, characterized in that: The pore size of the anaerobic ceramic flat membrane (22) is the pore size of an ultrafiltration membrane.

10. The device for producing byproducts from anaerobic fermentation of liquor brewing wastewater according to claim 1, characterized in that: The pore size of the hollow fiber membrane is the pore size of the microfiltration membrane; and an anaerobic hollow fiber membrane bioreactor air inlet (316) is arranged outside the anaerobic hollow fiber membrane bioreactor tank.

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