Biochemical treatment system for treating oil sludge by using microorganisms

Abstract

The utility model discloses a biochemical treatment system for treating oil sludge by utilizing microorganisms, which relates to the technical field of oil sludge treatment and comprises a pretreatment system, an anaerobic reaction system, an aerobic reaction system, a solid-liquid separation system and a controller, the controller is electrically connected with electrical elements in the pretreatment system, the anaerobic reaction system, the aerobic reaction system and the solid-liquid separation system; according to the utility model, the pretreatment system is arranged, so that the physical properties of the oil sludge can be adjusted before microbiological treatment, the viscosity of the oil sludge is obviously reduced, and the subsequent treatment efficiency and quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the oil sludge treatment technical field, concretely relates to a kind of biochemical treatment system for treating oil sludge using microorganism. BACKGROUND

[0002] In the process of oil exploitation, transportation, refining and oily sewage treatment, oil-containing sludge, simply referred to as oil sludge, is often produced, which contains a large amount of hydrocarbons, benzene series, phenols and other substances. If it is not treated and directly discharged, not only a part of resources is wasted, but also serious pollution to the environment is caused. Therefore, it is usually necessary to treat oil sludge to reduce pollution to the environment. The existing treatment methods generally include isolation method, incineration method, chemical oxidation method and microbial degradation method. Among them, the microbial degradation method is to degrade hydrocarbons and other organic substances in oil sludge into harmless substances by microorganisms in nature or specially cultured by humans. The oil sludge microbial treatment device in the prior art generally includes a container for containing oil sludge. By adding microorganisms in the container and stirring, harmful substances are degraded, and finally the treated oil sludge is discharged from the container.

[0003] Chinese utility model patent CN201520796843.7 discloses an oil sludge microbial treatment device, which comprises a treatment tank, a sealing cover, a driving motor, a stirring shaft, a first heating rod, a second heating rod, a temperature control device and an aeration assembly. The sealing cover is provided with a feeding port and a dosing port. The bottom of the treatment tank is provided with a discharge port. The driving motor is arranged on the top of the sealing cover. The stirring shaft is vertically arranged in the treatment tank. The upper end of the stirring shaft is connected with the driving motor. A plurality of inclined stirring blades are arranged on the stirring shaft. The first heating rod and the second heating rod are both arranged on the sidewall of the treatment tank. The first heating rod and the second heating rod are both connected with the temperature control device. A temperature sensor is arranged on the inner wall of the sealing cover. The temperature sensor is connected with the temperature control device. In the utility model, oil sludge is directly treated in the treatment tank. However, oil sludge contains a lot of impurities and has high viscosity. The effect of microbial degradation is poor. CONTENT

[0004] The utility model aims at providing a biochemical treatment system for treating oil sludge using microorganisms, so as to solve the above problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0006] A biochemical treatment system for treating oil sludge using microorganisms, which comprises a pretreatment system, an anaerobic reaction system, an aerobic reaction system, a solid-liquid separation system and a controller. The pretreatment system comprises a dissolving tank and a buffer tank connected in communication. The controller is electrically connected with electrical elements in the pretreatment system, the anaerobic reaction system, the aerobic reaction system and the solid-liquid separation system.

[0007] Optionally, the sludge dissolving tank is provided with a sludge inlet, a water supplement inlet, and a waste heat inlet one, the water supplement inlet is provided with a solenoid valve one, and the waste heat inlet one is provided with a solenoid valve two; the sludge dissolving tank is provided with a stirring device and a temperature probe one, and the stirring device is connected with a stirring motor.

[0008] Optionally, the buffer tank comprises a filtering device, a slag scraper, a liquid level meter one, an aeration device, a lifting pump one, and a waste heat outlet one; the filtering device is located at the communication between the sludge dissolving tank and the buffer tank, the slag scraper is arranged at the top of the buffer tank, the aeration device is used for aerating the buffer tank, and the aeration device comprises an aeration pipe and a fan; one end of the lifting pump one is connected with the buffer tank, and the other end is connected with a water inlet of the anaerobic reaction system; the waste heat outlet one is arranged at the bottom of the buffer tank, and a heat exchange pipe is connected between the waste heat inlet one and the waste heat outlet one.

[0009] Optionally, the anaerobic reaction system comprises a reactor and a circulating pump, the reactor is provided with a water outlet, the water outlet is connected with a water inlet of the aerobic reaction system, the reactor is provided with a reaction chamber and a heat exchange chamber which are isolated from each other, the reaction chamber is located at the inner side of the heat exchange chamber, the bottom of the reaction chamber is filled with a filler, and the top of the reaction chamber is provided with a gas collecting hood which is connected with a gas collecting port; the heat exchange chamber is provided with a waste heat inlet two and a waste heat outlet two, and the waste heat outlet two is provided with a solenoid valve three.

[0010] Optionally, the water inlet of the anaerobic reaction system is connected with a three-way joint, one end of the three-way joint is connected with the water outlet of the lifting pump one through a pipeline, the other end of the three-way joint is connected with the water outlet of the circulating pump through a pipeline, the water inlet of the circulating pump is connected with the upper part of the reaction chamber through a pipeline, and check valves are arranged on the pipelines connected with the water outlet of the lifting pump one and the water outlet of the circulating pump.

[0011] Optionally, the aerobic reaction system comprises an aerobic reaction tank, a liquid level meter two, an aeration device, and a lifting pump two, the aerobic reaction tank is filled with a filler, the liquid level meter two controls the start and stop of the lifting pump two, the aeration device comprises an aeration pipe and a fan, and the aeration pipe and the fan are connected through a pipeline, and the aeration pipe is located in the aerobic reaction tank.

[0012] Optionally, an ozone device is further arranged on the pipeline between the aeration pipe and the fan.

[0013] Optionally, the solid-liquid separation system comprises a separation device, a sludge collection tank, a sludge pump, a filter press and a floating oil collection tank, the separation device is provided with a floating oil outlet at the top, a clean water outlet at the side and a sewage outlet at the bottom, and an electromagnetic valve four is arranged on the sewage outlet; oil, clean water and sludge are separated through the floating oil outlet, the clean water outlet and the sewage outlet respectively; the floating oil outlet is connected with the floating oil collection tank, the sludge collection tank is arranged below the sewage outlet, and the sludge collection tank is sequentially connected with the sludge pump and the filter press.

[0014] Optionally, a backwater inlet is further arranged on the dissolving tank, and the backwater inlet is communicated with the clean water outlet.

[0015] Optionally, the sludge collection tank is V-shaped.

[0016] Beneficial effects: the biochemical treatment system for treating oil sludge by using microorganisms has the following advantages:

[0017] (1) A pretreatment system is arranged before microbial degradation, and the pretreatment system comprises a dissolving tank and a buffer tank which are communicated, various different oil sludge can be homogenized in the dissolving tank, the physical properties of the oil sludge are adjusted, the viscosity of the oil sludge is significantly reduced, and the efficiency and quality of subsequent treatment are improved;

[0018] (2) A filtering device is arranged at the communication position of the dissolving tank and the buffer tank, and solid particles in liquid oil-containing sludge can be filtered out;

[0019] (3) A slag scraper is arranged on the buffer tank, and oil floating on the surface of liquid oil-containing sludge can be scraped off for preliminary treatment;

[0020] (4) Anaerobic and aerobic reaction systems are arranged, and organic matter in liquid oil-containing sludge can be fully degraded;

[0021] (5) Temperature control elements are arranged in the pretreatment system, the anaerobic reaction system and the aerobic reaction system, and a suitable temperature environment can be provided;

[0022] (6) The clean water outlet of the solid-liquid separation system and the backwater inlet of the pretreatment system are communicated, and water in the system can be recycled, thereby saving water resources. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole structure schematic view of the biochemical treatment system for treating oil sludge by using microorganisms in the embodiment;

[0024] Figure 2 It is a whole structure schematic view of the pretreatment system in the embodiment;

[0025] Figure 3 It is a whole structure schematic view of the anaerobic reaction system in the embodiment;

[0026] Figure 4 The whole structure schematic view of the aerobic reaction system in the embodiment is shown in the figure.

[0027] Figure 5 The whole structure schematic view of the solid-liquid separation system in the embodiment is shown in the figure.

[0028] In the figure: 1, pretreatment system; 101, dissolving tank; 102, buffer tank; 2, anaerobic reaction system; 2a, water inlet; 2b, water outlet; 201, reactor; 202, circulating pump; 2011, reaction chamber; 2012, heat exchange chamber; 3, aerobic reaction system; 301, aerobic reaction tank; 302, liquid level gauge two; 303, lifting pump two; 4, solid-liquid separation system; 401, separation device; 402, sludge collection tank; 403, sludge pump; 404, filter press; 405, floating oil collection tank; 5, sludge inlet; 6, water supplement inlet; 61, electromagnetic valve one; 7, waste heat inlet one; 71, electromagnetic valve two; 8, stirring device; 81, stirring motor; 9, temperature probe one; 10, filtering device; 11, slag scraper; 12, liquid level gauge one; 13, aeration device; 131, aeration pipe; 132, fan; 14, lifting pump one; 15, waste heat outlet one; 16, gas collection hood; 161, gas collection port; 17, temperature probe two; 18, waste heat inlet two; 19, waste heat outlet two; 191, electromagnetic valve three; 20, three-way joint; 21, check valve; 22, ozone device; 23, floating oil outlet; 24, clean water outlet; 25, blowdown port; 251, electromagnetic valve four; 26, backwater port; 27, heat exchange pipe. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the present application will be briefly introduced in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the present application, but does not constitute a limitation on the present application.

[0030] In the description of the present utility model, it needs to be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present utility model and simplifying the description, in the absence of the opposite statement, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as the limitation to the protection scope of the present utility model; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0031] In the description of the present utility model, it needs to be understood that the words "first", "second" and the like are used to limit the parts, only for the convenience of distinguishing the corresponding parts, like no other declaration, the above words have no special meaning, therefore, it cannot be understood as the limitation to the protection scope of the present utility model.

[0032] Embodiment

[0033] As Figures 1-5 shown, the present embodiment provides a biochemical treatment system for treating oil sludge by microorganism, which comprises a pretreatment system 1, an anaerobic reaction system 2, an aerobic reaction system 3, a solid-liquid separation system 4 and a controller, the pretreatment system 1 comprises a dissolving tank 101 and a buffer tank 102 in communication, and the controller is electrically connected with the electrical elements in the pretreatment system 1, the anaerobic reaction system 2, the aerobic reaction system 3 and the solid-liquid separation system 4.

[0034] In the process of oil processing, different places and occasions will produce different liquid oil sludge, the dissolving tank 101 is used for homogenizing various different liquid oil sludge, after a period of mixing and homogenizing process, the various oil sludge is fully mixed to form the liquid oil sludge which is relatively stable and balanced in physical and chemical properties; the buffer tank 102 temporarily stores these liquid oil sludge, and then sequentially sends them to the anaerobic reaction system 2 and the aerobic reaction system 3, the anaerobic reaction system 2 and the aerobic reaction system 3 respectively add natural or artificially cultured anaerobic microorganisms and aerobic microorganisms in advance, and the microorganisms degrade the organic matter in the liquid oil sludge, so that the oil sludge is converted into biological sludge, and the biological sludge is treated to form organic fertilizer, which is used for soil improvement, landscaping or crop fertilization.

[0035] The controller is connected with the electrical elements in the system, controls the start and stop of the electrical elements, and the controller can also be connected with an operation display for observing and setting the temperature, water quantity and the like of the system.

[0036] In this process, microorganisms can use the organic matter in the oil sludge as a source of nutrition, and degrade it into harmless substances through metabolism and transformation. Especially some specific bacteria and fungi can effectively degrade hydrocarbon compounds, and the degradation rate of petroleum hydrocarbon substances can reach more than 95%; the microbial treatment method does not need to add chemical agents, and consumes less energy, so it has the advantages of saving energy, low investment and low operating cost. This method is green and environmentally friendly, and meets the requirements of sustainable development.

[0037] The controller is connected with the electrical elements in the system, controls the start and stop of the electrical elements, and the controller can also be connected with an operation display for observing the temperature, water quantity and the like of the system.

[0038] In one embodiment, referring to Figure 2 , the sludge dissolving tank 101 is provided with a sludge inlet 5, a water supplement inlet 6 and a waste heat inlet 7, the water supplement inlet 6 is provided with a solenoid valve 61, and the waste heat inlet 7 is provided with a solenoid valve 71; the sludge dissolving tank 101 is provided with a stirring device 8 and a temperature probe 9, and the stirring device 8 is connected with a stirring motor 81.

[0039] The buffer tank 102 comprises a filtering device 10, a slag scraper 11, a liquid level meter 12, an aeration device 13, a lifting pump 14 and a waste heat outlet 15; the filtering device 10 is located at the communication position of the sludge dissolving tank 101 and the buffer tank 102, the slag scraper 11 is arranged at the top of the buffer tank 102, the aeration device 13 is used for aerating the buffer tank 102, and the aeration device 13 comprises an aeration pipe 131 and a fan 132; one end of the lifting pump 14 is connected with the buffer tank 102, and the other end is connected with a water inlet 2a of the anaerobic reaction system 2; the waste heat outlet 15 is arranged at the bottom of the buffer tank 102, and a heat exchange pipe 27 is connected between the waste heat inlet 7 and the waste heat outlet 15.

[0040] Specifically, the sludge inlet 5 is a sludge feeding port, the water supplement inlet 6 is used for supplementing water when the water quantity is insufficient, the solenoid valve 61 is connected with an external water source, the liquid level meter 12 feeds back data to the controller after measuring the water level in the pretreatment system 1, and the start and stop of the solenoid valve 61 and the lifting pump 14 are controlled through the controller.

[0041] The waste heat inlet 7 is connected with steam waste heat or waste gas waste heat or high-temperature waste water generated in a factory, the system is heated by using the waste heat generated in the factory, the water temperature in the system is ensured to be 25-35℃, the temperature data measured by the temperature probe 9 is fed back to the controller, and the temperature in the system is controlled by controlling the opening and closing of the solenoid valve 71 through the controller; the waste heat outlet 15 is connected with a factory device for recycling, and the heat exchange pipe 27 is arranged through the sludge dissolving tank 101 and the buffer tank 102.

[0042] In the embodiment, the filtering device 10 is preferably a mechanical grid. When the liquid oily sludge in the dissolving tank 101 passes through the mechanical grid, most of the solid particles are filtered out and then enter the buffer tank 102 for temporary storage. The skimmer 11 in the buffer tank 102 skims the oil floating on the surface, and the skimmed oil is collected for treatment.

[0043] In order to avoid the sludge in the buffer tank 102 from settling, the buffer tank 102 is further provided with an aeration device 13. The aeration device 13 includes an aeration pipe 131 and a fan 132. The aeration pipe 131 and the fan 132 are connected by a pipeline. The fan 132 supplies gas to the aeration pipe 131.

[0044] In one of the embodiments, referring to Figure 3 , the anaerobic reaction system 2 includes a reactor 201 and a circulating pump 202. The reactor 201 is provided with a water outlet 2b. The water outlet 2b is connected to a water inlet of the aerobic reaction system 3. The reactor 201 is provided with a reaction chamber 2011 and a heat exchange chamber 2012 which are isolated from each other. The reaction chamber 2011 is located inside the heat exchange chamber 2012. The bottom of the reaction chamber 2011 is filled with filler. The top of the reaction chamber 2011 is provided with a gas collecting hood 16. The gas collecting hood 16 is connected to a gas outlet 161. The reaction chamber 2011 is further provided with a temperature probe two 17. The heat exchange chamber 2012 is provided with a waste heat inlet two 18 and a waste heat outlet two 19. The waste heat outlet two 19 is provided with a solenoid valve three 191.

[0045] Specifically, in the embodiment, the reactor 201 includes an upper cover, a column body, and a lower cover. The upper cover and the lower cover are connected to the column body by bolts. The water outlet 2b is arranged on the upper cover of the reactor 201. The water outlet 2b is connected to the water inlet of the aerobic reaction system 3 by a pipeline. The water inlet 2a is arranged on the lower cover of the reactor 201. The liquid oily sludge enters the reaction chamber 2011 from the water inlet 2a below and is biodegraded in the reaction chamber 2011. The generated gas is collected by the gas collecting hood 16 and discharged from the gas outlet 161 for collection and treatment. The outside of the reaction chamber 2011 is provided with the heat exchange chamber 2012. The heat exchange chamber 2012 is provided with the waste heat inlet two 18 and the waste heat outlet two 19. The waste heat outlet two 19 is provided with the solenoid valve three 191. The waste heat inlet two 18 is connected to the steam waste heat or the exhaust waste heat or the high-temperature waste water generated in the factory for connection. The system is heated by the waste heat generated in the factory to ensure that the water temperature in the system is 25-35℃. The heat-exchanged steam or water is discharged through the waste heat outlet two 19. The internal temperature is controlled by the temperature probe two 17 to control the opening and closing of the solenoid valve three 191 to control the temperature.

[0046] In the embodiment, the filler accounts for about three-quarters of the reaction chamber 2011. The filler allows the microorganisms to land on it, thereby increasing the contact area between the liquid oily sludge and the microorganisms.

[0047] In one of the embodiments, the water inlet 2a of the anaerobic reaction system 2 is connected with a tee joint 20, one end of the tee joint 20 is connected with the water outlet of the first lifting pump 14 through a pipeline, the other end is connected with the water outlet of the circulating pump 202 through a pipeline, the water inlet of the circulating pump 202 is communicated with the upper part of the reaction chamber 2011 through a pipeline, and the pipelines to the water outlets of the first lifting pump 14 and the circulating pump 202 are respectively provided with check valves 21.

[0048] Specifically, the circulating pump 202 circulates the liquid oily sludge in the reaction chamber 2011 to improve the reaction efficiency, and the check valves 21 are arranged to prevent the liquid oily sludge from flowing backward, and an electric regulating valve is arranged on the pipeline at the water inlet end of the circulating pump 202 to control the circulation amount.

[0049] In one of the embodiments, referring to Figure 3 , the aerobic reaction system 3 comprises an aerobic reaction box 301, a second liquid level meter 302, an aeration device 13 and a second lifting pump 303, the aerobic reaction box 301 is filled with filler, the second liquid level meter 302 controls the start and stop of the second lifting pump 303, the aeration device 13 comprises an aeration pipe 131 and a fan 132, the aeration pipe 131 and the fan 132 are connected through a pipeline, and the aeration pipe 131 is located in the aerobic reaction box 301.

[0050] Specifically, the fan 132 supplies oxygen to the aeration pipe 131 through a pipeline to provide oxygen for the aerobic reaction.

[0051] In order to improve the efficiency of the oxidation reaction, the pipeline between the aeration pipe 131 and the fan 132 is further provided with an ozone device 22, and the ozone can further oxidize the organic matter.

[0052] In one of the embodiments, referring to Figure 5 , the solid-liquid separation system 4 comprises a separation device 401, a sludge collection tank 402, a sludge pump 403, a filter press 404 and a floating oil collection tank 405, the separation device 401 is provided with a floating oil outlet 23 at the top, a clean water outlet 24 at the side and a sewage outlet 25 at the bottom, the sewage outlet 25 is provided with an electromagnetic valve four 251, and the oil, clean water and sludge are separated through the floating oil outlet 23, the clean water outlet 24 and the sewage outlet 25 respectively; the floating oil outlet 23 is connected with the floating oil collection tank 405, the sludge collection tank 402 is arranged below the sewage outlet 25, and the sludge collection tank 402 is sequentially connected with the sludge pump 403 and the filter press 404.

[0053] Specifically, in the present embodiment, the separating device 401 adopts a three-phase separator, an upper portion of the three-phase separator is provided with a floating oil outlet 23, a side portion is provided with a clean water outlet 24, and a lower portion is provided with a sludge outlet 25, the three-phase separator separates oil, clean water and sludge through the floating oil outlet 23, the clean water outlet 24 and the sludge outlet 25 respectively; the floating oil outlet 23 is connected with a floating oil collection tank 405 through a pipeline, and waits for processing; the sludge outlet 25 is provided with a solenoid valve four 251, and the opening and closing of the solenoid valve four 251 is controlled by a controller, so that the sludge is discharged regularly for collection; a sludge collection tank 402 is arranged below the sludge outlet 25, the sludge collection tank 402 is sequentially connected with a sludge pump 403 and a filter press 404, the sludge pump 403 pumps the sludge into the filter press 404 for separation, the produced sludge cake is transported for processing, and the filtrate is collected for processing.

[0054] Further, a backwater inlet 26 is further arranged on the dissolving tank 101, the backwater inlet 26 is communicated with the clean water outlet 24; the water generated in the system is recycled and reused.

[0055] In one of the embodiments, the sludge collection tank 402 is V-shaped, facilitating the sludge to settle at the bottom of the sludge collection tank 402.

[0056] Working principle:

[0057] ①In the process of oil processing, different places and occasions will produce different liquid oil-containing sludge, first, the sludge is collected together;

[0058] ②The collected liquid oil-containing sludge is put into the dissolving tank 101 for homogenization, after a period of mixing and homogenization process, various oil-containing sludge is fully mixed, the viscosity of the sludge is reduced, and the liquid oil-containing sludge with relatively stable physical and chemical properties is formed;

[0059] ③The liquid oil-containing sludge enters the buffer tank 102 through the filtering device 10, the filtering device 10 filters out the solid particles in the liquid oil-containing sludge, the scrapper 11 in the buffer tank 102 scrapes off the oil floating on the surface and collects it for processing, and then the oil is delivered to the anaerobic reaction system 2 through the lifting pump one 14; in this process, the water quantity and water temperature in the system need to be ensured, the water quantity is supplemented through the water supplement inlet 6, and the water temperature is exchanged through the heat exchange pipe 27 to ensure that the water temperature in the system is 25-35℃; in order to avoid the sedimentation of the slurry in the buffer tank 102, the gas is delivered into the buffer tank 102 through the aeration device 13.

[0060] ④ The liquid oily sludge undergoes biodegradation in the reaction chamber 2011. The generated gas is collected through the gas collection port 161 for further treatment and then transported to the aerobic reaction system 3. During this process, it is necessary to ensure that the water temperature in the system is between 25℃ and 35℃ to ensure the normal progress of the anaerobic reaction. To improve the reaction efficiency, the liquid oily sludge in the reaction chamber 2011 is circulated through the circulation pump 202.

[0061] ⑤ The aerobic reaction system 3 biodegrades the remaining organic matter in the liquid oily sludge. During this process, the aeration device 13 provides oxygen to the aerobic reaction tank 301, and the level gauge 302 controls the start and stop of the booster pump 303 through the level control.

[0062] ⑥ The solid-liquid separation system 4 separates the degraded oil, water and sludge. The oil is collected in the floating oil collection tank 405 for processing. The water is returned to the dissolving tank 101 for recycling. The sludge is fed into the filter press 404 for separation. The resulting sludge cake is transported off-site for processing. The filtrate is collected and processed.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A biochemical treatment system for treating oil sludge using microorganisms, characterized in that, The application relates to a sludge treatment device, which comprises a pretreatment system (1), an anaerobic reaction system (2), an aerobic reaction system (3), a solid-liquid separation system (4) and a controller, wherein the pretreatment system (1) comprises a communication dissolving tank (101) and a buffer tank (102), and the controller is electrically connected with electrical elements in the pretreatment system (1), the anaerobic reaction system (2), the aerobic reaction system (3) and the solid-liquid separation system (4).

2. The biochemical treatment system for treating sludge with microorganisms according to claim 1, wherein The dissolving tank (101) is provided with a sludge inlet (5), a water supplement inlet (6) and a waste heat inlet (7), the water supplement inlet (6) is provided with an electromagnetic valve (61), the waste heat inlet (7) is provided with an electromagnetic valve (71), the dissolving tank (101) is provided with a stirring device (8) and a temperature probe (9), and the stirring device (8) is connected with a stirring motor (81).

3. The biochemical treatment system for treating sludge with microorganisms according to claim 2, wherein The buffer tank (102) comprises a filtering device (10), a slag scraper (11), a liquid level meter (12), an aeration device (13), a lifting pump (14) and a waste heat outlet (15), the filtering device (10) is located at the communication position of the dissolving tank (101) and the buffer tank (102), the slag scraper (11) is arranged at the top of the buffer tank (102), the aeration device (13) is used for aerating the buffer tank (102), the aeration device (13) comprises an aeration pipe (131) and a fan (132), one end of the lifting pump (14) is connected with the buffer tank (102), and the other end is connected with a water inlet (2a) of the anaerobic reaction system (2), the waste heat outlet (15) is arranged at the bottom of the buffer tank (102), and a heat exchange pipe (27) is connected between the waste heat inlet (7) and the waste heat outlet (15).

4. The biochemical treatment system for treating sludge with microorganisms according to claim 3, wherein The anaerobic reaction system (2) comprises a reactor (201) and a circulating pump (202), the reactor (201) is provided with a water outlet (2b), the water outlet (2b) is connected with a water inlet of the aerobic reaction system (3), the reactor (201) is provided with a reaction chamber (2011) and a heat exchange chamber (2012) which are isolated from each other, the reaction chamber (2011) is located at the inner side of the heat exchange chamber (2012), the bottom of the reaction chamber (2011) is filled with a filler, the top of the reaction chamber (2011) is provided with a gas collecting cover (16), the gas collecting cover (16) is connected with a gas collecting port (161), and the reaction chamber (2011) is further provided with a temperature probe (17); the heat exchange chamber (2012) is provided with a waste heat inlet (18) and a waste heat outlet (19), and the waste heat outlet (19) is provided with an electromagnetic valve (191).

5. The biochemical treatment system for treating sludge with microorganisms according to claim 4, wherein The water inlet (2a) of the anaerobic reaction system (2) is connected with a three-way joint (20), one end of the three-way joint (20) is connected with the water outlet of the lifting pump (14) through a pipeline, the other end of the three-way joint (20) is connected with the water outlet of the circulating pump (202) through a pipeline, the water inlet of the circulating pump (202) is communicated with the upper portion of the reaction chamber (2011) through a pipeline, and check valves (21) are arranged on the pipelines connected with the water outlet of the lifting pump (14) and the water outlet of the circulating pump (202).

6. The biochemical treatment system for treating sludge with microorganisms according to claim 1, wherein The aerobic reaction system (3) comprises an aerobic reaction box (301), a liquid level gauge two (302), an aeration device (13) and a lifting pump two (303), the aerobic reaction box (301) is filled with fillers, the liquid level gauge two (302) controls the start and stop of the lifting pump two (303) through the liquid level, the aeration device (13) comprises an aeration pipe (131) and a fan (132), the aeration pipe (131) is connected with the fan (132) through a pipeline, and the aeration pipe (131) is located in the aerobic reaction box (301).

7. The biochemical treatment system for treating sludge with microorganisms according to claim 6, wherein An ozone device (22) is further arranged on the pipeline between the aeration pipe (131) and the fan (132).

8. The biochemical treatment system for treating sludge with microorganisms according to claim 1, wherein The solid-liquid separation system (4) comprises a separation device (401), a sludge collection tank (402), a sludge pump (403), a filter press (404) and a floating oil collection tank (405), the floating oil outlet (23) is arranged above the separation device (401), the clean water outlet (24) is arranged on the side, and the sewage outlet (25) is arranged below, the electromagnetic valve four (251) is arranged on the sewage outlet (25), and the oil, the clean water and the sludge are separated through the floating oil outlet (23), the clean water outlet (24) and the sewage outlet (25) respectively; the floating oil outlet (23) is connected with the floating oil collection tank (405), the sludge collection tank (402) is arranged below the sewage outlet (25), and the sludge collection tank (402) is sequentially connected with the sludge pump (403) and the filter press (404).

9. The biochemical treatment system for treating sludge with microorganisms according to claim 8, wherein A backwater inlet (26) is further arranged on the dissolving box (101), and the backwater inlet (26) is communicated with the clean water outlet (24).

10. The biochemical treatment system for treating sludge with microorganisms according to claim 8, wherein The sludge collection tank (402) is V-shaped.

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