A sewage biochemical comprehensive treatment system and device

Abstract

The present application belongs to the field of sewage biochemical comprehensive treatment technology, in particular to a sewage biochemical comprehensive treatment system and device, which comprises a pretreatment module, an anaerobic reaction module, a biochemical treatment module and a purification and discharge module; the anaerobic reaction module comprises a reactor and a feeding pump, and is used for adsorbing, flocculating and biodegrading suspended solids and organic matters; by arranging a biogas tank, a large amount of heat energy is generated in the degradation process of microorganisms in the anaerobic reactor, the heat energy enters the biogas tank through the air inlet pipe, the sewage after the completion of anaerobic reaction enters the adjusting tank, the adjusting tank utilizes facultative microorganisms to degrade organic pollutants in the wastewater; the sewage in the adjusting tank flows into the biochemical tank next, the biochemical tank contains oxygen, an aerobic biochemical reaction occurs, the valve on the air outlet pipe and the air blower are opened, under the action of the air blower, the heat energy in the biogas tank is rapidly transmitted to the biochemical tank, the activity of microorganisms is improved, and the sewage treatment efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sewage biochemical comprehensive treatment, and particularly relates to a sewage biochemical comprehensive treatment system and device. BACKGROUND

[0002] In the technical field of sewage biochemical comprehensive treatment, with the improvement of people's environmental protection consciousness, both domestic sewage and industrial sewage need to be filtered and treated before being discharged. Sewage treatment is to treat sewage through a series of physical, chemical and biochemical actions to obtain water quality acceptable to the environment, thereby reducing pollution to the natural environment.

[0003] A Chinese patent with publication number CN110127942A discloses an intelligent comprehensive sewage treatment system, which comprises a physical sewage treatment system and a biological sewage treatment system. When sewage is treated, the sewage that has not been effectively treated in the physical sewage treatment system connected with the biological sewage treatment system is biodegraded by the microbial community attached to the biochemical treatment device, thereby improving the water purification efficiency and reducing the accumulation of sludge generated subsequently, and the probability of secondary environmental pollution caused by the odor emitted by the sludge is reduced.

[0004] The above treatment system has strong pollutant degradation capacity of microorganisms at room temperature when treating sewage, but in winter, the low temperature greatly reduces the activity of microorganisms, which reduces the sewage treatment efficiency, causes the effluent to be substandard, and generates a large amount of residual sludge in the sewage treatment process.

[0005] Therefore, the present application provides a sewage biochemical comprehensive treatment system and device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve the problems of low temperature greatly reducing the activity of microorganisms, reducing the sewage treatment efficiency, causing the effluent to be substandard, and generating a large amount of residual sludge in the sewage treatment process.

[0007] The technical solution adopted by the present application to solve the technical problems is that the sewage biochemical comprehensive treatment system and device comprises a pretreatment module, an anaerobic reaction module, a biochemical treatment module and a purification and discharge module.

[0008] The anaerobic reaction module includes a reactor and a feed pump, and is used for adsorption, flocculation and biodegradation of suspended solids and organic matters, so as to facilitate clarification of the sewage while degradation; the anaerobic reaction module generates heat energy during the reaction process; the anaerobic reaction module is used for biogas utilization; the biochemical treatment module includes an adjusting unit, a biochemical unit and a sedimentation unit; the adjusting unit is used for decomposing high molecular compounds which are not easy to be degraded by using facultative microorganisms, so as to improve the biochemical property of the sewage; the biochemical unit is used for removing most of various types of pollution impurities in the water through aerobic biochemical reaction; one side of the biochemical unit is provided with a biogas storage device, which is used for connecting the anaerobic reaction module and the biochemical unit, so as to facilitate heat energy generated by the anaerobic reaction module to be transmitted to the biochemical unit; both sides of the adjusting unit, the biochemical unit and the sedimentation unit are connected by hoses, and control valves are installed on the hoses; the purification and discharge module is used for purifying the sewage after the sedimentation unit, so as to reach the discharge standard.

[0009] Preferably, the pretreatment module includes a reaction tank and a sedimentation tank, and the reaction tank and the sedimentation tank are connected by a connecting pipe; the sedimentation tank is connected to the anaerobic reaction module by a drain pipe away from the reaction tank; the reaction tank and the sedimentation tank are both provided with a dosing funnel; the reaction tank and the sedimentation tank are both provided with a stirring assembly; an electromagnetic valve is installed at the bottom of the dosing funnel; and the stirring assembly is used for accelerating the drug reaction.

[0010] Preferably, the anaerobic reaction module includes a bottom plate, an anaerobic reactor is fixedly connected to one end of the top of the bottom plate, an adjusting tank is connected to the bottom end of the anaerobic reactor by a hose, and a biochemical tank is connected to the bottom end of the adjusting tank by a hose; a biogas tank is fixedly connected to the top of the bottom plate and is arranged between the anaerobic reactor and the biochemical tank; one end of an air inlet pipe is connected to the top of the biogas tank, and the other end of the air inlet pipe is connected to the anaerobic reactor; one end of an air outlet pipe is connected to the top of the biogas tank, and the other end of the air outlet pipe is connected to the biochemical tank; a blower is fixedly connected to one side of the biogas tank and arranged on the top of the bottom plate.

[0011] Preferably, the anaerobic reactor is connected to a first sedimentation tank by a drain pipe; a rotating shaft is rotatably connected to the inner wall of the bottom of the first sedimentation tank by a rotating shaft; stirring blades are fixedly connected to the outer wall of the rotating shaft; a first bevel gear is fixedly connected to the bottom of the rotating shaft; a second bevel gear is arranged on one side of the first bevel gear; and the first bevel gear is engaged with the second bevel gear.

[0012] Preferably, one end of the conveying pipe is connected to the first sedimentation tank far from the anaerobic reactor, the other end of the conveying pipe is connected to the pretreatment reaction tank, a rotating sleeve is rotatably connected to the inner wall of the conveying pipe, an impeller is fixed to the center of one side wall of the rotating sleeve, one end of a connecting rod is fixed to the center of the other side wall of the rotating sleeve, the other end of the connecting rod is fixed to the second bevel gear, and the filter plate is fixed to the end of the conveying pipe close to the pretreatment reaction tank.

[0013] Preferably, the top of the pretreatment reaction tank is rotatably connected to the cover plate through a bearing, the first motor is fixed to the top of the cover plate, the output shaft of the first motor is rotatably connected to the cover plate through a bearing, the output shaft of the first motor is fixed to the stirring rod, and the two first stirring paddles are fixed to the outer side wall of the stirring rod.

[0014] Preferably, the top of the pretreatment reaction tank is rotatably connected to the cover plate through a bearing, the first motor is fixed to the top of the cover plate, the output shaft of the first motor is rotatably connected to the cover plate through a bearing, the output shaft of the first motor is fixed to the stirring rod, and the two first stirring paddles are fixed to the outer side wall of the stirring rod.

[0015] Preferably, the top of the pretreatment reaction tank is rotatably connected to the cover plate through a bearing, the first motor is fixed to the top of the cover plate, the output shaft of the first motor is rotatably connected to the cover plate through a bearing, the output shaft of the first motor is fixed to the stirring rod, and the two first stirring paddles are fixed to the outer side wall of the stirring rod.

[0016] The beneficial effects of the present application are as follows:

[0017] 1. The sewage biochemical comprehensive treatment system and device provided by the present application, by arranging the biogas tank, a large amount of heat energy is generated in the degradation process of microorganisms in the anaerobic reactor, the heat energy enters the biogas tank through the air inlet pipe, the sewage after the anaerobic reaction enters the adjusting tank, the adjusting tank utilizes facultative microorganisms to reduce the organic pollutants in the wastewater, improves the biodegradability of the wastewater, simultaneously decomposes the high molecular compounds which are not easy to degrade, and reduces the suspended solid concentration in the wastewater; the wastewater in the adjusting tank flows into the biochemical tank next, the biochemical tank contains oxygen, and the aerobic biochemical reaction occurs, most of the various types of pollution impurities in the water are removed through the aerobic biochemical reaction, in the reaction process, the valve on the exhaust pipe and the air blower are opened, under the action of the air blower, the heat energy in the biogas tank is quickly transmitted to the biochemical tank, the activity of the microorganisms is improved, the sewage treatment efficiency is improved, and the effluent meets the standard.

[0018] 2. The sewage biochemical comprehensive treatment system and device, through the setting up driving wheel and gear ring, opening second motor, when the rotating direction of second motor is same with the rotating direction of first motor, second motor drives driving wheel rotating, driving wheel drives gear ring rotating, gear ring occurs reverse rotation, first motor drives stirring rod, first stirring paddle rotating, gear ring drives vertical plate, second stirring paddle rotating, the rotating direction of second stirring paddle is opposite with first stirring paddle, so that the contact area of second stirring paddle and first stirring paddle with sewage is larger, fully mixes, when the rotating direction of second motor is opposite with the rotating direction of first motor, second motor drives driving wheel rotating, driving wheel drives gear ring rotating, gear ring occurs reverse rotation, first motor drives stirring rod, first stirring paddle rotating, gear ring drives vertical plate, second stirring paddle rotating, the rotating direction of second stirring paddle is same with first stirring paddle, so that the stirring speed of sewage is accelerated, prevents medicine from depositing in the bottom of pretreatment reaction tank. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below in conjunction with the drawings.

[0020] Figure 1 It is the flow chart of the application;

[0021] Figure 2 It is the perspective view of the application;

[0022] Figure 3 It is the sectional view in the application;

[0023] Figure 4 It is the structural schematic view of driving wheel and gear ring in the application;

[0024] Figure 5 It is the structural schematic view of pretreatment reaction tank inside in the application;

[0025] Figure 6 It is the structural schematic view of stirring blade in the application;

[0026] Figure 7 It is the structural schematic view of biogas tank in the application;

[0027] In the drawing: 1, bottom plate;2, pretreatment reaction tank;3, first sedimentation tank;4, anaerobic reactor;5, adjusting tank;6, biochemical tank;7, second sedimentation tank;8, cover plate;9, first motor;10, L-shaped plate;11, driving wheel;12, second motor;13, gear ring;14, stirring rod;15, first stirring paddle;16, vertical plate;17, second stirring paddle;18, conveying pipe;19, rotating rod;20, stirring blade;21, first bevel gear;22, second bevel gear;23, connecting rod;24, rotating sleeve;25, impeller;26, biogas tank;27, air blower;28, air inlet pipe;29, exhaust pipe. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in conjunction with specific embodiments.

[0029] As shown in Figures 1 to 7 , the sewage biochemical comprehensive treatment system and device of the present application comprises a pretreatment module, an anaerobic reaction module, a biochemical treatment module and a purification and discharge module.

[0030] The anaerobic reaction module comprises a reactor and a feed pump, and is used for adsorbing, flocculating and biodegrading suspended matter and organic matter, so as to clarify the sewage while degrading it. The anaerobic reaction module generates heat energy during the reaction process. The anaerobic reaction module utilizes biogas. The biochemical treatment module comprises an adjusting unit, a biochemical unit and a sedimentation unit. The adjusting unit uses facultative microorganisms to decompose high molecular compounds which are not easy to degrade, so as to improve the biodegradability of the sewage. The biochemical unit is used for removing most of various types of pollution impurities in the water through aerobic biochemical reaction. A biogas storage device is arranged on one side of the biochemical unit, and is used for connecting the anaerobic reaction module and the biochemical unit, so as to transfer the heat energy generated by the anaerobic reaction module to the biochemical unit. The adjusting unit, the biochemical unit and the sedimentation unit are connected together through hoses on both sides, and control valves are installed on the hoses. The purification and discharge module is used for purifying the sewage after the sedimentation unit, so as to reach the discharge standard.

[0031] During operation, the biogas storage device is arranged between the anaerobic reaction module and the biochemical unit. When the anaerobic reaction module reacts, the wastewater enters the sludge bed at the bottom of the reactor and is mixed with the sludge in the sludge bed. The microorganisms degrade the organic matter in the wastewater to generate biogas, which has heat energy and is stored in the biogas storage device. When the biochemical unit needs to react, the heat energy in the biogas storage device is transmitted to the biochemical unit. The temperature in the biochemical unit is increased, which improves the activity of the microorganisms and facilitates the degradation of various compounds.

[0032] As shown in Figures 1 to 2 , the pretreatment module comprises a reaction tank and a sedimentation tank, which are connected together through a connecting pipe. The sedimentation tank is connected to the anaerobic reaction module through a drain pipe away from the reaction tank. A dosing funnel is arranged on each of the reaction tank and the sedimentation tank. An electromagnetic valve is installed at the bottom of the dosing funnel. A stirring assembly is arranged on each of the reaction tank and the sedimentation tank. The stirring assembly is used for accelerating the drug reaction.

[0033] When working, the dosing funnel on the reaction tank adds flocculants to make impurities form flocculation; by adding oxidants, further remove impurities in water; the dosing funnel on the sedimentation tank adds neutralizing agents to adjust the pH value of the sewage to 4-6; the stirring assembly is used to accelerate the drug reaction and pretreat the sewage.

[0034] As shown in Figure 2 and Figure 7 , the anaerobic reaction module comprises a bottom plate 1, one end of the top of the bottom plate 1 is fixedly connected with an anaerobic reactor 4, the bottom end of the anaerobic reactor 4 is fixedly connected with an adjusting tank 5 through a hose, the bottom end of the adjusting tank 5 is fixedly connected with a biochemical tank 6 through a hose; the top of the bottom plate 1 is fixedly connected with a biogas tank 26, the biogas tank 26 is arranged between the anaerobic reactor 4 and the biochemical tank 6; one end of the top of the biogas tank 26 is fixedly connected with an air inlet pipe 28, the other end of the air inlet pipe 28 is fixedly connected with the anaerobic reactor 4; one end of the top of the biogas tank 26 is fixedly connected with an air outlet pipe 29, the other end of the air outlet pipe 29 is fixedly connected with the biochemical tank 6; one side of the biogas tank 26 is fixedly connected with a blower 27, and the blower 27 is fixedly connected to the top of the bottom plate 1.

[0035] When working, a large amount of heat energy is generated in the anaerobic reactor 4 during the degradation process of microorganisms, the heat energy enters the biogas tank 26 through the air inlet pipe 28, the wastewater after the completion of the anaerobic reaction enters the adjusting tank 5, the adjusting tank 5 utilizes facultative microorganisms to reduce organic pollutants in the wastewater, improves the biodegradability of the wastewater, simultaneously decomposes high molecular compounds which are not easy to degrade, and reduces the suspended solid concentration in the wastewater; the wastewater in the adjusting tank 5 flows into the biochemical tank 6 next, the biochemical tank 6 contains oxygen, and an aerobic biochemical reaction occurs, most of various types of pollution impurities in the water are removed through the aerobic biochemical reaction, in the reaction process, the valve on the air outlet pipe 29 and the blower 27 are opened, under the action of the blower 27, the heat energy in the biogas tank 26 is quickly transmitted to the biochemical tank 6, the activity of the microorganisms is improved, the wastewater treatment efficiency is improved, and the effluent meets the standard.

[0036] As shown in Figure 6 , one side of the anaerobic reactor 4 is fixedly connected with a first sedimentation tank 3 through a drain pipe, the inner wall of the bottom of the first sedimentation tank 3 is rotationally connected with a rotating rod 19 through a rotating shaft, the outer side wall of the rotating rod 19 is fixedly connected with a stirring blade 20, the bottom of the rotating rod 19 is fixedly connected with a first bevel gear 21, one side of the first bevel gear 21 is provided with a second bevel gear 22, and the first bevel gear 21 is meshed with the second bevel gear 22.

[0037] When working, the second bevel gear 22 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the rotating rod 19 to rotate, the rotating rod 19 drives the stirring blade 20 to rotate, and the stirring blade 20 stirs the neutralizing agent in the first sedimentation tank 3, so as to facilitate the rapid adjustment of the pH value of the sewage in the first sedimentation tank 3.

[0038] As shown in Figure 6 , one end of the conveying pipe 18 is connected to the side of the first sedimentation tank 3 away from the anaerobic reactor 4, the other end of the conveying pipe 18 is connected to the pretreatment reaction tank 2, the inner wall of the conveying pipe 18 is rotatably connected to the rotating sleeve 24, the center of one side wall of the rotating sleeve 24 is fixedly connected to the impeller 25, the center of the other side wall of the rotating sleeve 24 is fixedly connected to one end of the connecting rod 23, the other end of the connecting rod 23 is fixedly connected to the second bevel gear 22, and the end of the conveying pipe 18 close to the pretreatment reaction tank 2 is fixedly connected to the filter plate.

[0039] When working, the sewage in the pretreatment reaction tank 2 is input into the first sedimentation tank 3 through the conveying pipe 18, the water flow drives the impeller 25 to rotate, the impeller 25 drives the rotating sleeve 24 to rotate, the rotating sleeve 24 drives the connecting rod 23 to rotate, and the connecting rod 23 drives the second bevel gear 22 to rotate, so that the second bevel gear 22 rotates.

[0040] As shown in Figures 4 to 5 , the top of the pretreatment reaction tank 2 is rotatably connected to the cover plate 8 through a bearing, the top of the cover plate 8 is fixedly connected to the first motor 9, the output shaft of the first motor 9 is rotatably connected to the cover plate 8 through a bearing, the output shaft of the first motor 9 is fixedly connected to the stirring rod 14, and the outer side wall of the stirring rod 14 is fixedly connected to two first stirring paddles 15.

[0041] When working, the flocculating agent and the oxidizing agent are added into the pretreatment reaction tank 2 through the dosing funnel, in order to make the drugs react quickly, the first motor 9 is started, the first motor 9 drives the stirring rod 14 to rotate through the output shaft, the stirring rod 14 drives the first stirring paddles 15 to rotate, and the first stirring paddles 15 stir and mix the sewage and the drugs.

[0042] As shown in Figure 4 , the top of the pretreatment reaction tank 2 is rotatably connected to the cover plate 8 through a bearing, the top of the cover plate 8 is fixedly connected to the first motor 9, the output shaft of the first motor 9 is rotatably connected to the cover plate 8 through a bearing, the output shaft of the first motor 9 is fixedly connected to the stirring rod 14, and the outer side wall of the stirring rod 14 is fixedly connected to two first stirring paddles 15.

[0043] When working, the second motor 12 is started, when the rotating direction of the second motor 12 is the same as that of the first motor 9, the second motor 12 drives the driving wheel 11 to rotate, the driving wheel 11 drives the gear ring 13 to rotate, the gear ring 13 rotates reversely, the first motor 9 drives the stirring rod 14 and the first stirring paddle 15 to rotate, the gear ring 13 drives the vertical plate 16 and the second stirring paddle 17 to rotate, the rotating direction of the second stirring paddle 17 is opposite to that of the first stirring paddle 15, so that the second stirring paddle 17 and the first stirring paddle 15 have a larger contact area with the sewage, and the sewage is fully mixed; when the rotating direction of the second motor 12 is opposite to that of the first motor 9, the second motor 12 drives the driving wheel 11 to rotate, the driving wheel 11 drives the gear ring 13 to rotate, the gear ring 13 rotates reversely, the first motor 9 drives the stirring rod 14 and the first stirring paddle 15 to rotate, the gear ring 13 drives the vertical plate 16 and the second stirring paddle 17 to rotate, the rotating direction of the second stirring paddle 17 is the same as that of the first stirring paddle 15, so that the stirring speed of the sewage is increased, and the medicine is prevented from depositing at the bottom of the pretreatment reaction tank 2.

[0044] As shown in Figure 4 the bottom end of the first sedimentation tank 3 is provided with a water inlet pipe, the water inlet pipe is provided with a water pump, the outer side of the pretreatment reaction tank 2 is communicated and fixedly connected with a sewage discharge pipe, the sewage discharge pipe is provided with a sewage pump, the side of the pretreatment reaction tank 2 away from the sewage discharge pipe is provided with a second sedimentation tank 7, the bottom end of the second sedimentation tank 7 is communicated and fixedly connected to the biochemical tank 6 through a hose, and the end of the second sedimentation tank 7 away from the biochemical tank 6 is communicated and fixedly connected with a water outlet pipe, the water outlet pipe is used for discharging qualified sewage, and the inside of the second sedimentation tank 7 is provided with a purification and discharge module.

[0045] When working, the medicine in the pretreatment reaction tank 2 fully reacts with the sewage, so that there are more impurities at the bottom of the pretreatment reaction tank 2, and the clear water in the upper part flows into the first sedimentation tank 3 through the conveying pipe 18, the impurities are filtered in the pretreatment reaction tank 2, and the impurities are cleaned through the sewage pump, the second sedimentation tank 7 is provided with a purification and discharge module, the sewage after sedimentation is purified to reach the discharge standard.

[0046] Working principle: the flocculating agent and oxidizing agent are added into the pretreatment reaction tank 2 through the charging funnel, in order to make the medicine react quickly, the first motor 9 is started, the first motor 9 drives the stirring rod 14 to rotate through the output shaft, the stirring rod 14 drives the first stirring paddle 15 to rotate, the first stirring paddle 15 stirs and mixes the sewage and the medicine, the second motor 12 drives the driving wheel 11 to rotate, the driving wheel 11 drives the gear ring 13 to rotate, the gear ring 13 rotates in the opposite direction, the first motor 9 drives the stirring rod 14 and the first stirring paddle 15 to rotate, the gear ring 13 drives the vertical plate 16 and the second stirring paddle 17 to rotate, the second stirring paddle 17 rotates in the opposite direction of the first stirring paddle 15, so that the second stirring paddle 17 and the first stirring paddle 15 have a larger contact area with the sewage and are fully mixed; when the rotating direction of the second motor 12 is opposite to that of the first motor 9, the second motor 12 drives the driving wheel 11 to rotate, the driving wheel 11 drives the gear ring 13 to rotate, the gear ring 13 rotates in the opposite direction, the first motor 9 drives the stirring rod 14 and the first stirring paddle 15 to rotate, the gear ring 13 drives the vertical plate 16 and the second stirring paddle 17 to rotate, the second stirring paddle 17 rotates in the same direction as the first stirring paddle 15, so that the sewage stirring speed is increased to prevent the medicine from precipitating at the bottom of the pretreatment reaction tank 2; in the process of conveying the sewage in the pretreatment reaction tank 2 into the first sedimentation tank 3 through the conveying pipe 18, the water flow drives the impeller 25 to rotate, the impeller 25 drives the rotating sleeve 24 to rotate, the rotating sleeve 24 drives the connecting rod 23 to rotate, the connecting rod 23 drives the second bevel gear 22 to rotate, so that the second bevel gear 22 rotates, the second bevel gear 22 drives the first bevel gear 21 to rotate, the first bevel gear 21 drives the rotating rod 19 to rotate, the rotating rod 19 drives the stirring blade 20 to rotate, the stirring blade 20 stirs the neutralizing agent in the first sedimentation tank 3, so as to facilitate the rapid adjustment of the pH value of the sewage in the first sedimentation tank 3; then the sewage is conveyed into the anaerobic reactor 4, in the degradation process of microorganisms in the anaerobic reactor 4, a large amount of heat energy is generated, the heat energy enters the biogas tank 26 through the air inlet pipe 28, the sewage after anaerobic reaction enters the adjusting tank 5, the adjusting tank 5 utilizes facultative microorganisms to reduce the organic pollutants in the wastewater, improves the biodegradability of the wastewater, simultaneously decomposes the high molecular compounds which are not easy to degrade, and reduces the suspended solid concentration in the wastewater; the sewage in the adjusting tank 5 flows into the biochemical tank 6, the biochemical tank 6 contains oxygen, and an aerobic biochemical reaction occurs, most of the various types of pollution impurities in the water are removed through the aerobic biochemical reaction, in the reaction process, the valve on the exhaust pipe 29 and the air blower 27 are opened, under the action of the air blower 27, the heat energy in the biogas tank 26 is quickly transmitted to the biochemical tank 6, the activity of the microorganisms is improved, and the sewage treatment efficiency is improved; the sewage in the biochemical tank 6 is finally conveyed into the second sedimentation tank 7, the second sedimentation tank 7 is provided with a purification and discharge module to purify the precipitated sewage and meet the discharge standard.

[0047] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A comprehensive biological wastewater treatment system, characterized in that: It comprises a pretreatment module, an anaerobic reaction module, a biochemical treatment module and a purification and discharge module. The anaerobic reaction module comprises a reactor and a feeding pump, and is used for adsorbing, flocculating and biodegrading suspended matters and organic matters, so as to clarify the wastewater during degradation; the anaerobic reaction module generates heat energy during the reaction process; the anaerobic reaction module is used for biogas utilization; the biochemical treatment module comprises an adjusting unit, a biochemical unit and a sedimentation unit; the adjusting unit adopts facultative microorganisms to decompose high molecular compounds which are not easy to degrade, so as to improve the biochemical property of the wastewater; The biochemical unit is used for removing most of various types of pollution impurities in the water through aerobic biochemical reaction; one side of the biochemical unit is provided with a biogas storage device, which is used for connecting the anaerobic reaction module and the biochemical unit, so as to transfer the heat energy generated by the anaerobic reaction module to the biochemical unit; the adjusting unit, the biochemical unit and the sedimentation unit are connected by hoses on both sides, and control valves are installed on the hoses; the purification and discharge module is used for purifying the wastewater after the sedimentation unit, so as to reach the discharge standard; during the reaction of the anaerobic reaction module, the wastewater enters the sludge bed at the bottom of the reactor and is mixed with the sludge in the sludge bed; the microorganisms degrade the organic matters in the wastewater to generate biogas; the biogas has heat energy and is stored in the biogas storage device; when the biochemical unit needs to react, the heat energy in the biogas storage device is transmitted to the biochemical unit; the temperature in the biochemical unit is increased, the activity of the microorganisms is improved, and various compounds are degraded; The anaerobic reaction module comprises a bottom plate (1), one end of the top of the bottom plate (1) is fixedly connected with an anaerobic reactor (4), the bottom end of the anaerobic reactor (4) is fixedly connected with an adjusting tank (5) through a hose, and the bottom end of the adjusting tank (5) is fixedly connected with a biochemical tank (6) through a hose; a biogas tank (26) is fixedly connected to the top of the bottom plate (1), and the biogas tank (26) is arranged between the anaerobic reactor (4) and the biochemical tank (6); one end of the biogas tank (26) is fixedly connected with an air inlet pipe (28) in communication, the other end of the air inlet pipe (28) is fixedly connected with the anaerobic reactor (4) in communication, one end of the biogas tank (26) is fixedly connected with an air outlet pipe (29) in communication, the other end of the air outlet pipe (29) is fixedly connected with the biochemical tank (6) in communication, and a blower (27) is fixedly connected to the top of the bottom plate (1) in communication; One side of the anaerobic reactor (4) is fixedly connected with a first sedimentation tank (3) through a drain pipe in communication, a rotating rod (19) is rotatably connected to the inner wall of the bottom of the first sedimentation tank (3) through a rotating shaft, stirring blades (20) are fixedly connected to the outer wall of the rotating rod (19), a first bevel gear (21) is fixedly connected to the bottom of the rotating rod (19), a second bevel gear (22) is arranged on one side of the first bevel gear (21), and the first bevel gear (21) is engaged with the second bevel gear (22).

2. The system according to claim 1, characterized in that: The pretreatment module comprises a reaction tank and a sedimentation tank, the reaction tank and the sedimentation tank are connected and fixed together through a connecting pipe, the sedimentation tank is connected and fixed to the anaerobic reaction module through a drain pipe away from the reaction tank, a dosing funnel is arranged on the reaction tank and the sedimentation tank, a stirring assembly is arranged on the reaction tank and the sedimentation tank, an electromagnetic valve is arranged at the bottom of the dosing funnel, and the stirring assembly is used to accelerate the drug reaction.

3. A sewage biochemical comprehensive treatment device suitable for the sewage biochemical comprehensive treatment system of any one of claims 1-2, characterized in that: One end of the conveying pipe (18) is connected and fixed to the side of the first sedimentation tank (3) away from the anaerobic reactor (4), the other end of the conveying pipe (18) is connected and fixed to the pretreatment reaction tank (2), the inner wall of the conveying pipe (18) is rotatably connected with a rotating sleeve (24), one side wall of the rotating sleeve (24) is fixedly connected with an impeller (25) at the center, the other side wall of the rotating sleeve (24) is fixedly connected with one end of a connecting rod (23), the other end of the connecting rod (23) is fixed to the second bevel gear (22), and one end of the conveying pipe (18) is fixedly connected with a filter plate close to the pretreatment reaction tank (2).

4. The device according to claim 3, characterized in that: The top of the pretreatment reaction tank (2) is rotatably connected with a cover plate (8) through a bearing, the top of the cover plate (8) is fixedly connected with a first motor (9), the output shaft of the first motor (9) is rotatably connected to the cover plate (8) through a bearing, the output shaft of the first motor (9) is fixedly connected with a stirring rod (14), and the outer side wall of the stirring rod (14) is fixedly connected with two first stirring paddles (15).

5. The device according to claim 4, characterized in that: The top of the pretreatment reaction tank (2) is rotatably connected with a cover plate (8) through a bearing, the top of the cover plate (8) is fixedly connected with a first motor (9), the output shaft of the first motor (9) is rotatably connected to the cover plate (8) through a bearing, the output shaft of the first motor (9) is fixedly connected with a stirring rod (14), and the outer side wall of the stirring rod (14) is fixedly connected with two first stirring paddles (15).

6. The device according to claim 5, characterized in that: The top of the pretreatment reaction tank (2) is rotatably connected with a cover plate (8) through a bearing, the top of the cover plate (8) is fixedly connected with a first motor (9), the output shaft of the first motor (9) is rotatably connected to the cover plate (8) through a bearing, the output shaft of the first motor (9) is fixedly connected with a stirring rod (14), and the outer side wall of the stirring rod (14) is fixedly connected with two first stirring paddles (15). The bottom end of the pretreatment reaction tank (2) away from the first sedimentation tank (3) is provided with a water inlet pipe, the water inlet pipe is provided with a water pump, the outer side of the pretreatment reaction tank (2) is connected and fixed with a sewage discharge pipe, the sewage discharge pipe is provided with a sewage pump, the side of the pretreatment reaction tank (2) away from the sewage discharge pipe is provided with a second sedimentation tank (7), the bottom end of the second sedimentation tank (7) is connected and fixed to the biochemical tank (6) through a hose, one end of the second sedimentation tank (7) away from the biochemical tank (6) is connected and fixed with a water outlet pipe, the water outlet pipe is used for discharging qualified sewage, and the inside of the second sedimentation tank (7) is provided with a purification and discharge module.

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