A sludge hydrolysis and acidification carbon source supplement device

Abstract

The present invention provides a sludge hydrolysis and acidification carbon source supplementation device, comprising a fermentation tank, a feeding channel and a stirring tank; the upper part of the feeding channel is provided with a sludge input port and a mixed liquid input port; the lower part of the feeding channel is provided with a dispersion channel, a dispersion plate is provided between the dispersion channel and the stirring tank, one or more first augers are provided in the dispersion channel, one or more stirring mechanisms are provided in the stirring tank, a stirring paddle and a second augers are provided on the stirring mechanism, a pH detection mechanism and an oxidation-reduction potential detection mechanism are provided on the upper part of the dispersion plate, and a liquid addition mechanism is provided in the stirring tank. The present invention increases the activity of acid-producing bacteria in sludge, inhibits the activity of methanogens, increases the amount of carbon source produced by sludge fermentation, and recycles acid and carbon tetrachloride by controlling the pH value and the oxidation-reduction potential, and each space of the present invention can be manually entered for cleaning, which facilitates the subsequent maintenance of the entire device.

Description

Technical Field

[0001] The invention relates to the technical field of waste treatment, in particular to a sludge treatment device. Background Art

[0002] How to achieve the reduction, stabilization, resource utilization and harmlessness of sludge is a major problem faced by urban sewage treatment plants. In order to protect the ecological environment, sewage treatment plants generally attach great importance to the treatment of sludge, dispose of sludge reasonably, return sludge to the soil, improve soil fertility, use sludge to produce fertilizers, produce animal feed and chemical raw materials, etc., to meet the needs of crop and animal growth and chemical industry. In addition, sewage treatment plants are constantly strengthening the recycling and utilization of sludge, realizing the secondary use of sludge, so as to improve the utilization rate of sludge, improve environmental quality and protect the environment. Common sludge treatments include incineration, landfill, composting, soil improvement and resource utilization. When resource utilization, it is necessary to treat the organic matter and heavy metals in the sludge before reuse. This pre-treatment can avoid pollution to the subsequent use process, such as aerobic digestion, heating digestion, anaerobic digestion, etc.; aerobic digestion is a process in which the sludge is aerated for a long time, and part of the organic matter is degraded and stabilized by aerobic microorganisms. Heating digestion is divided into mesophilic digestion and thermophilic digestion. Mesophilic digestion is an anaerobic digestion process in which the sludge is subjected to a temperature of 33-53°C, while thermophilic digestion is an anaerobic digestion process in which the sludge is subjected to a temperature of 53-330°C.

[0003] Anaerobic digestion is a process in which anaerobic microorganisms degrade and stabilize organic matter in sludge under oxygen-free conditions. Sludge digested by anaerobic digestion not only reduces odor emissions and avoids secondary pollution such as air pollution, but can also be used as a biological organic carbon source through acidic fermentation.

[0004] When the COD of the influent of a sewage treatment plant is low, in order to obtain a higher biological denitrification and phosphorus removal effect, it is often necessary to supplement the carbon source. However, the addition of carbon sources (such as methanol) not only wastes resources, but also increases the cost of the sewage treatment plant. According to Thomas' research, using volatile fatty acids, the product of sludge hydrolysis and acidification, as an organic carbon source can significantly improve the effect of sewage biological treatment. Yuan Hongying's research shows that the organic carbon sources formed by acidic fermentation include short-chain fatty acids such as formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, and isovaleric acid. Most researchers believe that the effects of acetic acid and propionic acid are more obvious, especially acetic acid. Obviously, after such treatment, the sludge not only solves the problem of insufficient carbon source in some sewage treatment plants, but also reduces the pollution of sludge to the environment.

[0005] In the sewage treatment system, hydrolysis and acidification are linked together and cannot be clearly separated. Hydrolysis is to provide a soluble matrix for fermentation. Fermentation is simply a biochemical reaction that produces volatile fatty acids (VFAS). Under the action of hydrolases, fermentation-acid-producing bacteria hydrolyze macromolecules into small soluble substances. Due to the participation of exoenzymes-hydrolases, the hydrolysis reaction is carried out around or on the surface of the cells. Not all fermentation-acid-producing bacteria can secrete hydrolases, so usually, thermochemical, thermal pretreatment, chemical, mechanical pretreatment and other methods are needed to improve the degree and efficiency of hydrolysis. After the hydrolysis process is completed, the hydrolysis products enter the bacterial cells, undergo biochemical reactions under the catalysis of the cell enzyme system, and obtain energy, converting some organic matter into volatile fatty acids, which are metabolized into the aqueous solution around the cells. The proteins and lipids in the remaining sludge are decomposed into small molecular organic matter, and then fermented to produce acid to form volatile fatty acids (VFAS).

[0006] Acidogenic bacteria and methanogenic bacteria are crucial in the sludge hypoxic hydrolysis and acidification reaction. Acidogenic bacteria and methanogenic bacteria are the two major microbial populations involved in the hypoxic digestion of sludge. Methanogenic bacteria include hydrogen methanogenic bacteria and acetic methanogenic bacteria. Acetic methanogenic bacteria use acetic acid as a substrate for metabolism, which consumes acetic acid, the carbon source of sludge hypoxic hydrolysis and acidification. The generation time of acidogenic bacteria is similar to that of hydrogen methanogenic bacteria, and is quite different from that of acetic methanogenic bacteria. In addition, the hydrolysis reaction is slow because the solid particles on the cell surface and around it are not easy to dissolve, which provides the possibility for acidification control. It happens that there are some differences in the biochemical characteristics of methanogenic bacteria and acidogenic bacteria. For example, these two bacteria have differences in optimal pH value, pH sensitivity, cell viability, species, sensitivity to poisons, optimal temperature, redox potential, etc. In this way, as long as the appropriate method and equipment are provided, the activity of methanogenic bacteria can be controlled, that is, methanogenic bacteria are weakened, acidogenic bacteria are strengthened, thereby improving the quality of carbon source, and supplementing effective carbon source for the entire sewage treatment process. Summary of the invention

[0007] The purpose of the present invention is to provide a sludge hydrolysis and acidification carbon source supplementation device to solve the problem proposed in the above background technology that sludge obtains carbon source to supplement sludge denitrification and phosphorus removal, thereby reducing the need for large amounts of carbon source input in sludge treatment.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A sludge hydrolysis and acidification carbon source supplementation device comprises a fermentation tank, a feeding channel and a stirring tank; a sludge input port and a mixed liquid input port are arranged at the upper portion of the feeding channel; a dispersion channel is arranged at the lower portion of the feeding channel, a dispersion plate is arranged between the dispersion channel and the stirring tank, one or more first augers are arranged in the dispersion channel, one or more stirring mechanisms are arranged in the stirring tank, a stirring paddle is arranged at the lower end of the stirring mechanism, a second augers are arranged at the upper end of the stirring mechanism, a pH detection mechanism and an oxidation-reduction potential detection mechanism are arranged at the upper portion of the dispersion plate, and a liquid adding mechanism is arranged in the stirring tank.

[0010] Specifically, a liquid storage tank is provided between the feeding channel and the stirring tank, and the liquid storage tank is connected to the liquid adding mechanism. An adjusting liquid spraying mechanism is provided on the upper part of the liquid storage tank, and the adjusting liquid spraying mechanism includes a water drawing pipe, a first servo pump, a first connecting pipe and a first nozzle. The water drawing pipe extends into the interior of the liquid storage tank, and the first servo pump is connected between the water drawing pipe and the first nozzle by the first connecting pipe. The first nozzle is located on the upper part of the mixed liquid adding port.

[0011] Specifically, a stirring mechanism is provided on the upper portion of the liquid storage tank.

[0012] Specifically, an acid-producing bacteria liquid spraying mechanism is provided on one side of the fermentation tank close to the stirring tank.

[0013] Specifically, the acid-producing bacteria liquid spraying mechanism includes a liquid storage tank, a second connecting pipe, a second servo pump and a second nozzle, and the second servo pump is connected between the liquid storage tank and the second nozzle by the second connecting pipe.

[0014] Specifically, the dispersion plate is provided with a speaker hole.

[0015] Specifically, an isolation plate is provided in the dispersion channel, and a group of first augers is provided between the two isolation plates.

[0016] Furthermore, a carbon tetrachloride tank, an acid tank and a sludge discharge channel are provided on the side of the fermentation tank away from the stirring tank; a fine filter is provided between the fermentation tank and the acid tank; an extraction mechanism is provided between the carbon tetrachloride tank and the acid tank; and a transfer pipeline is provided between the carbon tetrachloride tank, the acid tank and the liquid storage tank.

[0017] Specifically, the water suction pipe of the extraction mechanism is inserted into the bottom of the acid liquid pool, and the liquid outlet pipe of the suction mechanism is located in the carbon tetrachloride pool.

[0018] Furthermore, sealing strips are provided on both sides of the sealing plate between the fermentation tank and the stirring tank, on both sides of the sealing plate between the acid tank and the carbon tetrachloride tank, and on both sides of the dispersion plate close to the side wall of the dispersion channel.

[0019] Specifically, a gate is provided in the sludge discharge channel of the present invention.

[0020] Specifically, the transfer pipeline includes a carbon tetrachloride transfer pipeline and an acid liquid transfer pipeline; valves are provided on the carbon tetrachloride transfer pipeline and the acid liquid transfer pipeline, and the acid liquid transfer pipeline is connected to the liquid adding mechanism.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The invention increases the activity of acid-producing bacteria in sludge, inhibits the activity of methanogens and increases the amount of carbon source produced by sludge fermentation by controlling pH value and redox potential.

[0023] The invention realizes the recycling of acidic substances and carbon tetrachloride for pH adjustment by collecting supernatant, thereby reducing the fermentation cost investment.

[0024] The present invention provides sealing strips between the fermentation tank and the stirring tank, between the acid tank and the carbon tetrachloride tank, on both sides of the dispersion plate, and on both sides of the gate in the sludge discharge channel, so that the space outside the liquid storage tank can be manually entered for cleaning, which facilitates the subsequent maintenance of the entire equipment.

[0025] The present invention mixes the semi-solid substance such as sludge evenly by conveying, spraying, dispersing and stirring, so that the added acid solution, carbon tetrachloride and bacterial solution can fully contact with the sludge, thereby increasing the yield of carbon source and effectively inhibiting the fermentation of local methanogens. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of a sludge hydrolysis and acidification carbon source supplementation device of the present invention;

[0027] Figure 2 A cross-sectional view of a sludge hydrolysis and acidification carbon source supplementation device according to the present invention Figure 1 ;

[0028] Figure 3 A cross-sectional view of a sludge hydrolysis and acidification carbon source supplementation device according to the present invention Figure 2 ;

[0029] Figure 4 This is a schematic diagram of the structure of the dispersion plate of the present invention;

[0030] Figure 5 It is a schematic diagram of the sealing strip structure of the present invention.

[0031] In the figure: 1. fermentation tank; 2. liquid storage tank; 3. feeding channel; 4. dispersion channel; 5. stirring tank; 6. motor; 7. first auger; 8. sludge inlet; 9. mixed liquid inlet; 10. adjustment liquid spraying mechanism; 11. stirring paddle; 12. second auger; 13. carbon tetrachloride transfer pipeline; 14. three-way valve; 15. pH detection mechanism; 16. redox potential detection mechanism; 17. dispersion plate; 18. carbon tetrachloride tank; 19. acid-producing bacteria liquid spraying mechanism; 20. liquid storage tank; 21. sludge discharge channel; 22. mixed liquid stirring mechanism; 23. acid transfer pipeline; 24. acid tank; 25. isolation plate; 26. trumpet hole; 27. fine filter; 28. sealing strip. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1-5 The present embodiment provides a sludge hydrolysis and acidification carbon source supplementation device, comprising a fermentation tank 1, a feeding channel 3, a liquid storage tank 2, a carbon tetrachloride tank 18, an acid liquid tank 24 and a stirring tank 5; a sludge input port 8 and a mixed liquid input port 9 are arranged at the upper part of the feeding channel 3; a dispersion channel 4 is arranged at the lower part of the feeding channel 3, a dispersion plate 17 is arranged between the dispersion channel 4 and the stirring tank 5, a trumpet hole 26 is arranged on the dispersion plate 17, a liquid storage tank 2 is arranged between the feeding channel 3 and the stirring tank 5, a plurality of groups of first augers 7 are arranged in the dispersion channel 4, and an isolation plate 25 is arranged between each group of first augers 7, the same number of stirring mechanisms are arranged in the stirring tank 5, a stirring paddle 11 is arranged at the lower end of the stirring mechanism, a second augers 12 is arranged at the upper end of the stirring mechanism, a pH detection mechanism 15 and an oxidation-reduction potential detection mechanism 16 are arranged at the upper part of the dispersion plate 17, and a liquid adding mechanism is arranged in the stirring tank 5. The liquid adding mechanism is a three-way valve 14, one side of the three-way valve 14 is connected to the liquid storage tank 2, the other side of the three-way valve 14 is connected to the acid liquid tank 24, the third channel of the three-way valve 14 is connected to the stirring tank 5, and valves are provided on the three channels of the three-way valve 14. The first auger 7 and the stirring mechanism are driven by the motor 6.

[0035] An adjusting liquid spraying mechanism 10 is provided on the upper part of the liquid storage tank 2, and the adjusting liquid spraying mechanism 10 includes a water drawing pipe, a first servo pump, a first connecting pipe and a first nozzle. The water drawing pipe extends into the liquid storage tank 2, and the first servo pump is connected between the water drawing pipe and the first nozzle by the first connecting pipe. The first nozzle is located on the upper part of the mixed liquid addition port 9.

[0036] The liquid storage tank 2 is provided with a mixed liquid stirring mechanism 22 to mix the added acid solution and carbon tetrachloride evenly. The fermentation tank 1 is provided with an acid-producing bacteria liquid spraying mechanism 19 on one side close to the stirring tank 5. The acid-producing bacteria liquid spraying mechanism 19 includes a liquid storage tank 20, a second connecting pipe, a second servo pump and a second nozzle, and the second servo pump is connected between the liquid storage tank 20 and the second nozzle by the second connecting pipe. The liquid storage tank 20 is arranged on the upper part of the liquid storage tank 2.

[0037] A sludge discharge channel 21 is provided on the side of the fermentation tank 1 away from the stirring tank 5, and a gate is provided in the sludge discharge channel 21; a fine filter 27 is provided between the fermentation tank 1 and the acid tank 24; the sludge and impurities are blocked, and the liquid leached from the surface after the sludge is accumulated for a long time flows out to the acid tank 24; an extraction mechanism is provided between the carbon tetrachloride tank 18 and the acid tank 24; a transfer pipeline is provided between the carbon tetrachloride tank 18 and the acid tank 24 and the liquid storage tank 2. The water suction pipe of the extraction mechanism is inserted into the bottom of the acid tank 24, and the liquid outlet pipe of the suction mechanism is located in the carbon tetrachloride tank 18.

[0038] Sealing strips 28 are provided on both sides of the sealing plate between the fermentation tank 1 and the stirring tank 5, on both sides of the sealing plate between the acid tank 24 and the carbon tetrachloride tank 18, and on both sides of the dispersion plate 17 near the side wall of the dispersion channel. It is convenient to disassemble and clean the sealing plates between each tank.

[0039] The transfer pipeline includes a carbon tetrachloride transfer pipeline 13 and an acid liquid transfer pipeline 23 ; valves are provided on the carbon tetrachloride transfer pipeline 13 and the acid liquid transfer pipeline 23 , and the acid liquid transfer pipeline 23 is connected to the three-way valve 14 .

[0040] Embodiment 2:

[0041] When the device obtained in Example 1 is used, the sludge in the sewage treatment plant is divided into two parts, one part is put into the sludge inlet, and the adjusting liquid spraying mechanism 10 is turned on while the sludge is put in, and the acid liquid and carbon tetrachloride in the liquid storage tank 2 are sprayed on the sludge. The first auger 7 transfers the sludge to the dispersion plate 17, and the sludge is squeezed into thin strips through the horn hole 26 of the dispersion plate 17 and discharged into the stirring tank 5. The acid liquid and carbon tetrachloride are mixed with the sludge by the first auger 7 and then are mixed and dispersed again by the stirring paddle 11 in the stirring tank 5. As the sludge increases, it will be lifted by the second auger 12. Before the second auger 12 is lifted, the pH detection mechanism 15 and the redox potential detection mechanism 16 will measure the pH value and redox potential of the sludge. There are differences in the composition of each batch of sludge, and the pH value and redox potential need to be adjusted by the liquid adding mechanism. The liquid adding mechanism is a three-stage sludge adding mechanism. Through valve 14, if the pH value of the sludge is too high, the acid liquid drawn from the acid liquid tank is directly added. If the pH value and the redox potential are not suitable, it is necessary to add the mixed liquid in the liquid storage tank or reduce the amount of the adjustment liquid spraying mechanism 10 sprayed to the mixed liquid inlet. When the pH value and the redox potential are adjusted appropriately, the sludge is lifted to the fermentation tank 1 by the second auger 12 through the opening between the stirring tank 5 and the fermentation tank 1. The acid-producing bacteria liquid spraying mechanism 19 sprays the fermentation liquid containing acid-producing bacteria on the sludge discharged into the fermentation tank 1, and the sludge is allowed to accumulate and ferment in the fermentation tank 1 for about 12 hours. The acid liquid produced in the sludge during the fermentation process flows into the acid liquid tank 24 through the fine filter screen 27. After the acid liquid tank 24 settles for a period of time, the carbon tetrachloride and the acid liquid are separated and the carbon tetrachloride sinks to the bottom. When the accumulation is sufficient, it is pumped to the carbon tetrachloride tank 18 through the extraction mechanism, and the carbon tetrachloride and the acid liquid are recycled.

[0042] If the acidity of the sludge is too high, add lime or other alkaline substances at the mixed liquor inlet to adjust it so that the pH value is stabilized at 5.5-6.5; if the carbon tetrachloride in the mixed liquor is not enough to adjust the redox potential, add additional carbon tetrachloride to ensure that the redox potential of the sludge is between -200 and -150.

[0043] After the sludge in the fermentation tank 1 has been accumulated and fermented for 12 hours, it is discharged from the sludge discharge channel to the non-fermented sludge in the sewage treatment plant, and continues to be denitrified and dephosphorized by microorganisms. In order to compare the carbon source content of the hydrolyzed and acidified sludge with that of the non-hydrolyzed and acidified sludge, a portion is taken out from the sludge discharge channel and measured according to the following method:

[0044] This embodiment uses gas chromatography to measure volatile fatty acids. The test uses a gas chromatograph of Shimadzu model GC-2010, and the temperature rise of the column oven is controlled by a program. The initial temperature is set to 110°C and the temperature rises by 10°C per minute until the temperature reaches 150°C. The chromatographic column uses an HP-5 capillary column with a size of 30mx0.32mmx0.25um. A hydrogen flame ionization detector (FID) is configured: the air and hydrogen flow rates are 450ml / min and 40ml / min, respectively; 230°C; 45ml / min tail flow rate. The sample is filtered by suction using a 0.45-micron microporous filter membrane and centrifuged for 10 minutes (4000r / min) before filtering. A gas chromatography-specific bottle with a volume of 1.5ml is used to collect 1ml of filtrate. To ensure that the pH value of the sample is lower than 3, 0.2ml of 25% metaphosphoric acid is added to each sample. The micro-injector measures 1 μl of the filtrate for on-machine analysis and measurement.

[0045] The peak area method is used to quantitatively analyze the concentration of various acids. Before measuring the water sample, multiple sets of standard concentrations of n-valeric acid, isovaleric acid, n-butyric acid, isobutyric acid, propionic acid and acetic acid are prepared. And the standard curves of the six acids are drawn according to the peak areas at different concentrations of the six acids. The peak area of ​​the leachate of the hydrolyzed acidified sludge is determined by the standard curve to obtain the measurement data. The total VFAs are the sum of the various acids in the measurement results. This embodiment measures the leachate of the hydrolyzed acidified sludge and the sludge that has not been hydrolyzed and acidified respectively. At a temperature of 25±1°C, the VFAs of the hydrolyzed acidified liquid are 8g / L, and the VFAs of the hydrolyzed acidified sludge that has not been hydrolyzed and acidified are 20mg / L at a temperature of 25±1°C.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any reference numerals in the claims should not be regarded as limiting the claims involved.

[0047] 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 sludge hydrolysis and acidification carbon source supplementation device, characterized in that: The device comprises a fermentation tank, a feeding channel and a stirring tank; a sludge inlet and a mixed liquid inlet are arranged at the upper part of the feeding channel; a dispersion channel is arranged at the lower part of the feeding channel, a dispersion plate is arranged between the dispersion channel and the stirring tank, one or more first augers are arranged in the dispersion channel, one or more stirring mechanisms are arranged in the stirring tank, a stirring paddle is arranged at the lower end of the stirring mechanism, a second augers are arranged at the upper end of the stirring mechanism, a pH detection mechanism and an oxidation-reduction potential detection mechanism are arranged at the upper part of the dispersion plate, and a liquid adding mechanism is arranged in the stirring tank; a liquid storage tank is arranged between the feeding channel and the stirring tank, the liquid storage tank is connected with the liquid adding mechanism, an adjustment liquid spraying mechanism is arranged at the upper part of the liquid storage tank, and the adjustment liquid spraying mechanism comprises a water drawing pipe, a first servo pump, a first connecting pipe and a first nozzle, the water drawing pipe extends into the liquid storage tank, the first servo pump is connected between the water drawing pipe and the first nozzle by the first connecting pipe, and the first nozzle is located at the upper part of the mixed liquid adding port; A carbon tetrachloride pool, an acid pool and a sludge discharge channel are arranged on one side of the fermentation pool away from the stirring pool; a fine filter is arranged between the fermentation pool and the acid pool; an extraction mechanism is arranged between the carbon tetrachloride pool and the acid pool; a water suction pipe of the extraction mechanism is inserted into the bottom of the acid pool, and a liquid outlet pipe of the extraction mechanism is located in the carbon tetrachloride pool; A transfer pipeline is provided between the carbon tetrachloride tank, the acid liquid tank and the liquid storage tank; The liquid adding mechanism is a three-way valve, one side of the three-way valve is connected to the liquid storage tank, the other side of the three-way valve is connected to the acid tank, the third channel of the three-way valve is connected to the stirring tank, and valves are arranged on the three channels of the three-way valve; The acid produced in the sludge during the fermentation process flows into the acid pool through a fine filter. After settling in the acid pool for a period of time, the carbon tetrachloride and the acid are separated and the carbon tetrachloride sinks to the bottom. When it accumulates enough, it is pumped into the carbon tetrachloride pool through an extraction mechanism; the carbon tetrachloride and the acid are recycled.

2. A sludge hydrolysis and acidification carbon source supplementation device as claimed in claim 1, characterized in that: A stirring mechanism is arranged on the upper part of the liquid storage tank.

3. A sludge hydrolysis and acidification carbon source supplementation device as claimed in claim 1, characterized in that: An acid-producing bacteria liquid spraying mechanism is arranged on one side of the fermentation tank close to the stirring tank.

4. A sludge hydrolysis and acidification carbon source supplementation device as claimed in claim 3, characterized in that: The acid-producing bacteria liquid spraying mechanism comprises a liquid storage tank, a second connecting pipe, a second servo pump and a second nozzle, wherein the second servo pump is connected between the liquid storage tank and the second nozzle by the second connecting pipe.

5. The sludge hydrolysis and acidification carbon source supplementation device according to claim 1, characterized in that: The dispersion plate is provided with a speaker hole.

6. A sludge hydrolysis and acidification carbon source supplementation device as claimed in claim 1, characterized in that: An isolation plate is arranged in the dispersion channel, and a group of first augers is arranged between two isolation plates.

7. The sludge hydrolysis and acidification carbon source supplementation device according to claim 1, characterized in that: Sealing strips are arranged on both sides of the sealing plate between the fermentation tank and the stirring tank, on both sides of the sealing plate between the acid tank and the carbon tetrachloride tank, and on both sides of the dispersion plate close to the side wall of the dispersion channel.

8. The sludge hydrolysis and acidification carbon source supplementation device according to claim 1, characterized in that: A gate is arranged in the sludge discharge channel.

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