Integrated intelligent sewage treatment device, method and system

Abstract

The invention discloses an integrated intelligent sewage treatment device, method and system, and relates to the field of sewage treatment. The integrated intelligent sewage treatment device comprises a sedimentation tank and integrated equipment, according to the integrated intelligent sewage treatment device, when the concentration of dissolved oxygen is abnormal, the aeration rates of the corresponding micropore aerators and diffusion aerators are changed, and when the concentration of chemical oxygen demand is too low, whether the dosage is abnormal or not is judged through a throw-in type liquid level meter, the dosage of sodium hypochlorite is correspondingly regulated and controlled according to the abnormality, and then the concentration of the chemical oxygen demand is adjusted and controlled. The aeration rates of the corresponding micropore aerators and diffusion aerators are correspondingly changed, the concentration of the suspended solids in the mixed liquid is monitored, when the concentration is abnormal, monitoring data of the ultrasonic sensor are fed back to the processor, the air pump and the liquid inlet pump are correspondingly started, and the concentration of the suspended solids in the mixed liquid is changed.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an integrated intelligent sewage treatment device, method and system. Background Art

[0002] Wastewater treatment is the process of purifying wastewater so that it meets the water quality requirements for discharge into a water body or reuse.

[0003] In the process of industrial wastewater treatment, because the amount of wastewater to be treated is large, sewage integrated equipment is usually used to treat the wastewater. During the treatment process, the functions of the primary sedimentation tank, oxidation tank, sludge tank, etc. are integrated, and the wastewater is treated by aeration combined with the activated sludge method. At present, the integrated equipment completes the treatment of wastewater through the steps of screen interception, regulating tank homogenization, biological treatment stage, deep treatment and disinfection, and intelligent control and discharge. However, in the existing technology, during treatment, only the dissolved oxygen concentration, chemical oxygen demand concentration and mixed liquor suspended solids concentration are monitored. It is necessary to rely on manual control of the aeration and stirring rate, and the control of its concentration depends on manual control after data feedback. While relying on manual control, the dissolved oxygen concentration, chemical oxygen demand concentration and mixed liquor suspended solids concentration affect each other, resulting in their regulation being affected, and the normal operation of the integrated equipment cannot be effectively guaranteed. The present application proposes an integrated intelligent sewage treatment device, method and system. Summary of the Invention

[0004] In response to the deficiencies in the prior art, the present invention provides an integrated intelligent sewage treatment device, method, and system, which solve the problem that during treatment, only the dissolved oxygen concentration, chemical oxygen demand concentration, and mixed liquor suspended solids concentration are monitored, which requires manual control of aeration and stirring rates, and the control of their concentrations is manually controlled after data feedback. While relying on manual control, the dissolved oxygen concentration, chemical oxygen demand concentration, and mixed liquor suspended solids concentration affect each other, resulting in their regulation being affected and the inability to effectively ensure the normal operation of the integrated equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an integrated intelligent sewage treatment device, method and system.

[0006] The integrated intelligent sewage treatment device includes: A sedimentation tank is provided with a water inlet and a water outlet, the water inlet is used to enter sewage, and a sewage outlet is provided below the sedimentation tank; An integrated device is provided with a connecting port and a sodium dosing port, a mixer bracket is provided on the integrated device, a stirring rod is installed in the mixer bracket, the connecting port is connected to the water outlet, a microporous aerator and multiple diffusion aerators are provided in the sedimentation tank, the microporous aerator and the multiple diffusion aerators are connected to an air pipe, and the air pipe is connected to a pump body.

[0007] Preferably, a front-end treatment tank is provided in the sedimentation tank, the stirring rod and the microporous aerator are in the front-end treatment tank, the stirring rod and the microporous aerator cooperate to stir and mix the front-end treatment tank, the connecting port is connected to the front-end treatment tank, and the connecting port is connected to an infusion tube, and the bottom of the infusion tube is at the bottom of the front-end treatment tank.

[0008] Preferably, the sedimentation tank is provided with a first treatment tank, a second treatment tank and a third treatment tank, and diffusion aerators are installed in the first treatment tank, the second treatment tank and the third treatment tank.

[0009] Preferably, a control room is provided in the sedimentation tank, a sedimentation tank is installed in the control room, the sedimentation tank is connected to a vent, a secondary sodium dosing port is installed on the control room, the secondary sodium dosing port is connected to the front-end treatment tank through a connecting pipe, an air pump is installed in the control room, the inlet of the air pump is connected to the sedimentation tank, the air pump is connected to a reflux pipe, and the outlet of the reflux pipe is in the front-end treatment tank.

[0010] Preferably, the sedimentation tank is provided with a liquid inlet pipe, the liquid inlet pipe is connected to the third treatment tank, the liquid inlet pipe is used to precipitate the treated sewage, and the control room is installed with a submersible liquid level meter.

[0011] Preferably, the control chamber is provided with an overflow port, and the overflow port is connected to the front-end processing tank through an overflow pipe.

[0012] The method of the integrated intelligent sewage treatment device is to first transport the sewage to the sedimentation tank through the water inlet during sewage treatment. After a period of sedimentation in the sedimentation tank, the sewage outlet is opened to discharge the sediment, and then the sewage is discharged into the integrated equipment through the water outlet.

[0013] Preferably, the water outlet discharges the sewage into the front-end treatment tank through the connection port. At this time, the sewage enters the bottom of the front-end treatment tank through the infusion tube on the connection port. At this time, the stirring rod is started to stir, and the microporous aerator in the front-end treatment tank is aerated to fully contact the sludge, sewage and oxygen in the front-end treatment tank. The sewage is then transported in sequence through the circulating water pump in the integrated equipment, so that the sewage is treated in the first treatment tank, the second treatment tank and the third treatment tank, and the diffusion aerator is used to improve the treatment effect. The treated liquid is stored in the sedimentation tank. After monitoring and meeting the emission standards, it is discharged through the vent.

[0014] Preferably, during the treatment process, the dosing treatment is carried out through the secondary sodium dosing port, and the dissolved oxygen sensor and the chemical oxygen demand sensor provided in the front-end treatment tank, the first treatment tank, the second treatment tank and the third treatment tank are coordinated to monitor the dissolved oxygen concentration and the chemical oxygen demand concentration respectively; When the dissolved oxygen concentration is too low, the aeration volume of the corresponding microporous aerator and diffusion aerator is increased, the aeration volume is increased, and the dissolved oxygen concentration in the sewage is increased. When the dissolved oxygen concentration is too high, the aeration volume of the corresponding microporous aerator and diffusion aerator is slowed down, the aeration volume is reduced, and the dissolved oxygen concentration in the sewage is reduced. When the chemical oxygen demand concentration is too low, the first step is to use the input level meter to determine whether the dosage is abnormal. If it is abnormal, the sodium dosage will be adjusted accordingly, and the chemical oxygen demand sensor will be used to monitor again within a limited time. When the chemical oxygen demand concentration is high, the oxygen consumption for organic matter degradation increases and the dissolved oxygen is consumed rapidly. The aeration volume of the corresponding microporous aerator and diffusion aerator is increased, and the aeration intensity is increased to maintain the dissolved oxygen concentration. When the chemical oxygen demand concentration is insufficient, the aeration volume of the corresponding microporous aerator and diffusion aerator is reduced to ensure nitrification reaction and organic matter decomposition, and maintain the balance between chemical oxygen demand and dissolved oxygen concentration.

[0015] Preferably, an ultrasonic sensor is provided in the front-end treatment tank to monitor the concentration of suspended solids in the mixed liquid; When the concentration is too low, the ultrasonic sensor monitors the data and feeds it back to the processor. At this time, the stirring speed of the mixer is increased to avoid the presence of sedimentation sludge in the front-end treatment tank, which affects the suspended solids concentration of the mixed liquid. The concentration is continuously monitored to see if it is normal. If it is still low, it is judged that there is less sludge in the front-end treatment tank. The air pump is started to return the sludge in the sedimentation tank to the front-end treatment tank through the return pipe to increase the suspended solids concentration of the mixed liquid. When the concentration is low, the mixer speed is increased, and secondary monitoring is carried out, and the monitoring results are delayed and fed back to the processor. When the concentration is still low, the processor controls the aeration volume of the diffusion aerator in the first treatment tank, the second treatment tank, and the third treatment tank to increase the concentration of suspended solids in the back-end treatment mixed liquid; When the concentration is too high, the ultrasonic sensor monitors the data and feeds it back to the processor. At this time, the stirring rate of the mixer is reduced and the concentration is continuously monitored to see if it is normal. If it is still high, it is determined that there is too much sludge in the front-end treatment tank. The liquid inlet pump is started to transport the sewage to the front-end treatment tank to reduce the suspended solids concentration of the mixed liquid. When monitoring the suspended solids concentration of the mixed liquor, if the concentration is high, the mixer speed is reduced, and a secondary monitoring is performed, and the monitoring results are delayed and fed back to the processor. If the concentration is still high, the processor controls the aeration volume of the diffusion aerator in the first treatment tank, the second treatment tank, and the third treatment tank to reduce the suspended solids concentration of the mixed liquor in the back-end treatment; At the same time, the liquid level sensor is used to monitor the liquid level to avoid excessive liquid in the front-end treatment pool. When the monitored liquid level is lower than the set range, the liquid inlet pump is started to transport the sewage to the front-end treatment pool through the infusion pipe to ensure that the liquid level is within the normal range. When the monitored liquid level is higher than the set range, the liquid is discharged through the overflow port to ensure that the liquid level is within the normal range.

[0016] The system of the integrated intelligent sewage treatment device includes the integrated intelligent sewage treatment device.

[0017] The present invention discloses an integrated intelligent sewage treatment device, method and system, which have the following beneficial effects: 1. This integrated intelligent sewage treatment device, method, and system, when the dissolved oxygen concentration is abnormal, changes the aeration volume of the corresponding microporous aerator and diffusion aerator. When the chemical oxygen demand concentration is too low, the first step is to determine whether the dosage is abnormal through a submersible liquid level gauge. If abnormal, the sodium dosage is adjusted accordingly. The chemical oxygen demand sensor is used to monitor again within a limited time. When the chemical oxygen demand concentration is abnormal, the oxygen consumption for organic matter degradation increases, the dissolved oxygen is consumed rapidly, and the aeration volume of the corresponding microporous aerator and diffusion aerator is changed.

[0018] 2. The integrated intelligent sewage treatment device, method and system monitor the concentration of suspended solids in the mixed liquor. When the concentration is abnormal, the ultrasonic sensor monitoring data is fed back to the processor. At this time, the stirring rate of the mixer is changed accordingly, and secondary monitoring is performed. The monitoring results are fed back to the processor with a delay. When it is determined that there is less sludge in the front-end treatment tank, the air pump is started to return the sludge in the sedimentation tank to the front-end treatment tank through the return pipe, thereby increasing the concentration of suspended solids in the mixed liquor. When it is determined that there is too much sludge in the front-end treatment tank, the liquid inlet pump is started to transport sewage to the front-end treatment tank, thereby reducing the concentration of suspended solids in the mixed liquor.

[0019] 3. This integrated intelligent sewage treatment device, method and system, when monitoring the suspended solids concentration of the mixed liquid, cooperates with the liquid level sensor to monitor the liquid level to avoid excessive liquid in the front-end treatment tank. When the monitored liquid level is lower than the set range, the liquid inlet pump is started to transport the sewage to the front-end treatment tank through the infusion pipe to ensure that the liquid level is within the normal range. When the monitored liquid level is higher than the set range, the liquid is discharged through the overflow port to ensure that the liquid level is within the normal range. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 Schematic diagram of the overall structure of the sedimentation tank in this embodiment; Figure 2 This is a structural schematic diagram of the sedimentation tank from another perspective of this embodiment; Figure 3 This is a schematic diagram of the overall structure of the integrated equipment in this embodiment; Figure 4 This is a top plate diagram of the integrated equipment in this embodiment; Figure 5 This is the dissolved oxygen and chemical oxygen demand control block diagram of this embodiment; Figure 6 This is a block diagram of the mixed liquor suspended solids control in this embodiment; Figure 7 This is a block diagram of the liquid level and mixed liquid suspended solids regulation in the front-end treatment tank of this embodiment; Figure 8 This is the block diagram of the mixed liquor suspended solids regulation in the front-end treatment tank of this embodiment.

[0022] In the figure: 1. Sedimentation tank; 11. Water inlet; 12. Water outlet; 13. Sewage outlet; 2. Integrated equipment; 21. Front-end treatment tank; 22. First treatment tank; 23. Second treatment tank; 24. Third treatment tank; 25. Control room; 251. Sedimentation tank; 252. Liquid inlet pipe; 253. Overflow port; 254. Vent port; 26. Connecting port; 261. Infusion tube; 27. Secondary sodium dosing port; 3. Mixer bracket; 31. Stirring rod; 4. Air pipe; 41. Microporous aerator; 42. Diffusion aerator; 5. Air pump; 51. Reflux pipe; 6. Submersible level gauge. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] The embodiment of the present application provides an integrated intelligent sewage treatment device, method and system, which solves the problem that during treatment, only the dissolved oxygen concentration, chemical oxygen demand concentration and mixed liquor suspended solids concentration are monitored, which requires manual control of aeration and stirring rates, and the control of their concentrations is manually controlled after data feedback. While relying on manual control, the dissolved oxygen concentration, chemical oxygen demand concentration and mixed liquor suspended solids concentration affect each other, resulting in their regulation being affected and the normal operation of the integrated device 2 cannot be effectively guaranteed. During the treatment process, the secondary sodium dosing port 27 is used for dosing treatment, and the dissolved oxygen concentration and chemical oxygen demand concentration are monitored respectively in conjunction with the dissolved oxygen sensor and chemical oxygen demand sensor provided in the front-end treatment tank 21, the first treatment tank 22, the second treatment tank 23 and the third treatment tank 24; When the dissolved oxygen concentration is abnormal, the aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is changed. When the chemical oxygen demand concentration is too low, the input liquid level meter 6 is used to determine whether the dosage is abnormal. If abnormal, the sodium dosage is adjusted accordingly. The chemical oxygen demand sensor is used to monitor again within a limited time. When the chemical oxygen demand concentration is abnormal, the oxygen consumption for organic matter degradation increases, and the dissolved oxygen is consumed rapidly. The aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is changed. The concentration of suspended solids in the mixed liquor is monitored. When the concentration is abnormal, the ultrasonic sensor monitoring data is fed back to the processor. At this time, the stirring rate of the mixer is changed accordingly, and secondary monitoring is performed. The monitoring results are fed back to the processor with a delay. When it is determined that there is less sludge in the front-end treatment tank 21, the air pump 5 is started to return the sludge in the sedimentation tank 251 to the front-end treatment tank 21 through the return pipe 51, thereby increasing the concentration of suspended solids in the mixed liquor. When it is determined that there is too much sludge in the front-end treatment tank 21, the liquid inlet pump is started to transport sewage to the front-end treatment tank 21, thereby reducing the concentration of suspended solids in the mixed liquor. When monitoring the suspended solids concentration of the mixed liquid, the liquid level is monitored in conjunction with the liquid level sensor to avoid excessive liquid in the front-end treatment tank 21. When the monitored liquid level is lower than the set range, the liquid inlet pump is started to transport the sewage to the front-end treatment tank 21 through the infusion pipe 261 to ensure that the liquid level is within the normal range. When the monitored liquid level is higher than the set range, the liquid is discharged through the overflow port 253 to ensure that the liquid level is within the normal range.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] The embodiments of the present invention disclose an integrated intelligent sewage treatment device, method and system.

[0027] According to the attached Figure 1-8 As shown, the integrated intelligent sewage treatment device includes: The sedimentation tank 1 is provided with a water inlet 11 and a water outlet 12. The water inlet 11 is used to enter the sewage. The sewage enters the sedimentation tank 1 through the water inlet 11, and the sewage is precipitated in the sedimentation tank 1. The sediment is discharged through the sewage outlet 13, and the precipitated sewage is discharged through the water outlet 12. The sewage outlet 13 is provided at the bottom of the sedimentation tank 1; The integrated equipment 2 is provided with a connection port 26 and a hyposodium dosing port 27, the integrated equipment 2 is provided with a mixer bracket 3, a stirring rod 31 is installed in the mixer bracket 3, the connection port 26 is connected to the water outlet 12, and a microporous aerator 41 and multiple diffusion aerators 42 are provided in the sedimentation tank 1. The microporous aerator 41 and the multiple diffusion aerators 42 are connected to the air pipe 4, and the air pipe 4 is connected to the pump body.

[0028] The microporous aerator 41 and the diffusion aerator 42 are existing mature structures and will not be elaborated herein.

[0029] A front-end treatment tank 21 is provided in the sedimentation tank 1. The stirring rod 31 and the microporous aerator 41 are located in the front-end treatment tank 21. The stirring rod 31 and the microporous aerator 41 cooperate to stir and mix the front-end treatment tank 21. The connecting port 26 is connected to the front-end treatment tank 21. The connecting port 26 is connected to an infusion tube 261. The bottom of the infusion tube 261 is at the bottom of the front-end treatment tank 21.

[0030] The infusion pipe 261 is set at the bottom of the front-end treatment tank 21 to facilitate the transportation of sewage to the bottom of the front-end treatment tank 21 and facilitate the mixing and stirring treatment of the sewage with the stirring rod 31 and the microporous aerator 41.

[0031] The microporous aerator 41 performs aeration, forcing air or pure oxygen into the water to increase the dissolved oxygen concentration in the water, providing necessary conditions for microorganisms to degrade organic matter. Aerobic bacteria need to consume oxygen for metabolic activities, and aeration can maintain their activity and accelerate the decomposition of pollutants.

[0032] At the same time, the stirring rod 31 is used to stir the front-end treatment tank 21. A driving motor is connected to the output end of the stirring rod 31, and the driving motor drives the stirring rod 31 to rotate. The rotation of the stirring rod 31 allows the sludge, sewage and oxygen to fully contact, avoiding local accumulation of pollutants and improving mass transfer efficiency.

[0033] A first treatment tank 22 , a second treatment tank 23 and a third treatment tank 24 are provided in the sedimentation tank 1 , and diffusion aerators 42 are installed in the first treatment tank 22 , the second treatment tank 23 and the third treatment tank 24 .

[0034] A control room 25 is provided in the sedimentation tank 1. A sedimentation tank 251 is installed in the control room 25. The sedimentation tank 251 is connected to a vent 254. The vent 254 is used to discharge the treated liquid stored in the sedimentation tank 251. The control room 25 is provided with a hyposodium dosing port 27, which is connected to the front-end treatment tank 21 through a connecting pipe. Dosing is performed through the hyposodium dosing port 27, and the hypochlorous acid and new ecological oxygen generated by the hydrolysis of sodium hypochlorite are used to destroy the cell walls and nucleic acid structures of microorganisms, kill pathogens such as bacteria and viruses, and reduce the biological hazards of the effluent; An air pump 5 is installed in the control room 25 . The inlet of the air pump 5 is connected to the sedimentation tank 251 . A reflux pipe 51 is connected to the air pump 5 . The outlet of the reflux pipe 51 is located in the front-end processing pool 21 .

[0035] An electromagnetic flowmeter installed on the return pipe 51 and linked to a mixed liquor suspended solids concentration monitor can accurately calculate the sludge return rate to avoid idling or overloading of the pump. At the same time, combined with the residual sludge concentration data, dynamic regulation of the sludge dewatering system can be achieved to reduce chemical consumption.

[0036] The return pipe 51 cooperates with the air pump 5 to transport the activated sludge after sedimentation in the secondary sedimentation tank back to the bioreactor, ensuring the stability and activity of the microbial flora in the system and improving the efficiency of organic matter degradation.

[0037] A liquid inlet pipe 252 is provided on the sedimentation tank 251, and the liquid inlet pipe 252 is connected to the third treatment tank 24. The liquid inlet pipe 252 is used to precipitate the treated sewage. A drop-in liquid level meter 6 is installed on the control room 25 to facilitate monitoring of the amount of dosing material at the secondary sodium dosing port 27.

[0038] The control room 25 is provided with an overflow port 253 , which is connected to the front-end treatment tank 21 through an overflow pipe. The overflow port 253 is used to discharge sewage from the front-end treatment tank 21 and regulate the chemical oxygen demand and dissolved oxygen in the front-end treatment tank 21 .

[0039] When treating sewage, the sewage is first transported to the sedimentation tank 1 through the water inlet 11. After a period of sedimentation in the sedimentation tank 1, the sewage outlet 13 is opened to discharge the sediment, and then the sewage is discharged into the integrated equipment 2 through the water outlet 12.

[0040] The water outlet 12 discharges the sewage into the front-end treatment tank 21 through the connection port 26. At this time, the sewage enters the bottom of the front-end treatment tank 21 through the infusion tube 261 on the connection port 26. At this time, the stirring rod 31 is started to stir, and the microporous aerator 41 in the front-end treatment tank 21 is aerated, so that the sludge, sewage and oxygen in the front-end treatment tank 21 are fully contacted. The sewage is then transported in sequence through the circulating water pump in the integrated equipment 2, so that the sewage is treated in the first treatment tank 22, the second treatment tank 23 and the third treatment tank 24, and the diffusion aerator 42 is used to improve the treatment effect. The treated liquid is stored in the sedimentation tank 251. After monitoring and meeting the emission standards, it is discharged through the vent 254.

[0041] During the treatment process, the sodium dosing port 27 is used for dosing, and the dissolved oxygen concentration and chemical oxygen demand concentration are monitored respectively by the dissolved oxygen sensor and chemical oxygen demand sensor provided in the front-end treatment tank 21, the first treatment tank 22, the second treatment tank 23 and the third treatment tank 24; Dissolved oxygen refers to molecular oxygen dissolved in water. Its content directly affects the activity of microorganisms in sewage and the sewage treatment effect. Chemical oxygen demand is an important indicator to measure the content of organic pollutants in water. It indicates the amount of oxidant consumed when a water sample is treated with a strong oxidant under certain conditions. The balance between chemical oxygen demand (COD) and dissolved oxygen concentration. When the COD concentration is high, the oxygen consumption for organic matter degradation increases, and the dissolved oxygen concentration is rapidly consumed. It is necessary to increase the aeration intensity or adjust the sludge return ratio to maintain the dissolved oxygen concentration.

[0042] Insufficient dissolved oxygen concentration inhibits nitrification and decomposition of organic matter, resulting in a decrease in the removal rate of chemical oxygen demand concentration and even causing anaerobic odor production.

[0043] When the dissolved oxygen concentration is too low, the aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is increased, the aeration volume is increased, and the dissolved oxygen concentration in the sewage is increased. When the dissolved oxygen concentration is too high, the aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is slowed down, the aeration volume is reduced, and the dissolved oxygen concentration in the sewage is reduced. When the chemical oxygen demand concentration is too low, the first step is to determine whether the dosage is abnormal through the input liquid level meter 6. If abnormal, the sodium dosage is adjusted accordingly. The chemical oxygen demand sensor is used to monitor again within a limited time. When the chemical oxygen demand concentration is high, the oxygen consumption for organic matter degradation increases, and the dissolved oxygen is consumed rapidly. The aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is increased, and the aeration intensity is increased to maintain the dissolved oxygen concentration. When the chemical oxygen demand concentration is insufficient, the aeration volume of the corresponding microporous aerator 41 and the diffusion aerator 42 is reduced to ensure nitrification and decomposition of organic matter, and maintain a balance between the chemical oxygen demand concentration and the dissolved oxygen concentration.

[0044] Interaction between the suspended solids concentration and dissolved oxygen concentration of the mixed liquor. If the suspended solids concentration of the mixed liquor is too high, the oxygen demand of the microorganisms will increase. If aeration is insufficient, the dissolved oxygen concentration will decrease, which may cause anoxic sludge bulking or reduce treatment efficiency.

[0045] The suspended solids concentration in the mixed liquor is too low, the total amount of microorganisms is insufficient, and the utilization rate of dissolved oxygen concentration is low, which can easily lead to excessive organic matter in the effluent.

[0046] ‌Coordinated regulation of the suspended solids concentration of the mixed liquor and the chemical oxygen demand concentration‌. When the suspended solids concentration of the mixed liquor is within an appropriate range, the microbial activity is high and the chemical oxygen demand concentration can be effectively degraded. When the concentration is too high, the sludge ages and the chemical oxygen demand removal efficiency decreases.

[0047] At the same time, an ultrasonic sensor is provided in the front-end treatment tank 21 to monitor the concentration of suspended solids in the mixed liquid; Dissolved oxygen sensors, chemical oxygen demand sensors, ultrasonic sensors and liquid level sensors are existing mature structures and will not be elaborated in this application.

[0048] When the concentration is too low, the ultrasonic sensor monitoring data is fed back to the processor, and the stirring rate of the mixer is increased at this time to avoid the presence of sedimentation sludge in the front-end treatment tank 21, which affects the concentration of suspended solids in the mixed liquid. The concentration is continuously monitored to see if it is normal. If it is still low, it is determined that there is less sludge in the front-end treatment tank 21, and the air pump 5 is started to return the sludge in the sedimentation tank 251 to the front-end treatment tank 21 through the return pipe 51, thereby increasing the concentration of suspended solids in the mixed liquid. When the concentration is low, the mixer speed is increased, and secondary monitoring is performed, and the monitoring results are delayed and fed back to the processor. When the concentration is still low, the processor controls the diffusion aerator 42 in the first treatment tank 22, the second treatment tank 23 and the third treatment tank 24 to increase the aeration volume, thereby increasing the suspended solids concentration of the back-end treatment mixed liquid; When the concentration is too high, the ultrasonic sensor monitoring data is fed back to the processor, at which point the stirring rate of the mixer is reduced and the concentration is continuously monitored to see if it is normal. If it is still high, it is determined that there is too much sludge in the front-end treatment tank 21, and the liquid inlet pump is started to transport the sewage to the front-end treatment tank 21 to reduce the suspended solids concentration of the mixed liquid. When monitoring the suspended solids concentration of the mixed liquor, if the concentration is high, the mixer speed is reduced, and a secondary monitoring is performed, and the monitoring results are delayed and fed back to the processor. If the concentration is still high, the processor controls the diffusion aerator 42 in the first treatment tank 22, the second treatment tank 23 and the third treatment tank 24 to reduce the aeration volume, thereby reducing the suspended solids concentration of the mixed liquor in the back-end treatment; At the same time, the liquid level sensor is used to monitor the liquid level to avoid excessive liquid in the front-end treatment tank 21. When the monitored liquid level is lower than the set range, the liquid inlet pump is started to transport the sewage to the front-end treatment tank 21 through the infusion pipe 261 to ensure that the liquid level is within the normal range. When the monitored liquid level is higher than the set range, the liquid is discharged through the overflow port 253 to ensure that the liquid level is within the normal range.

[0049] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Integrated intelligent sewage treatment device, characterized by: The integrated intelligent sewage treatment device includes: A sedimentation tank (1), wherein the sedimentation tank (1) is provided with a water inlet (11) and a water outlet (12), the water inlet (11) is used for entering sewage, and a sewage outlet (13) is provided below the sedimentation tank (1); An integrated device (2) is provided with a connection port (26) and a sodium dosing port (27), a stirrer bracket (3) is provided on the integrated device (2), a stirring rod (31) is installed in the stirrer bracket (3), the connection port (26) is connected to the water outlet (12), a microporous aerator (41) and a plurality of diffusion aerators (42) are provided in the sedimentation tank (1), an air pipe (4) is connected to the microporous aerator (41) and the plurality of diffusion aerators (42), and the air pipe (4) is connected to the pump body.

2. The integrated intelligent sewage treatment device according to claim 1 is characterized in that: A front-end treatment tank (21) is provided in the sedimentation tank (1), the stirring rod (31) and the microporous aerator (41) are located in the front-end treatment tank (21), and the stirring rod (31) and the microporous aerator (41) cooperate to stir and mix the front-end treatment tank (21), the connecting port (26) is connected to the front-end treatment tank (21), and the connecting port (26) is connected to a liquid infusion tube (261), and the bottom of the liquid infusion tube (261) is located at the bottom of the front-end treatment tank (21).

3. The integrated intelligent sewage treatment device according to claim 2 is characterized in that: The sedimentation tank (1) is provided with a first treatment tank (22), a second treatment tank (23) and a third treatment tank (24), and diffusion aerators (42) are installed in the first treatment tank (22), the second treatment tank (23) and the third treatment tank (24).

4. The integrated intelligent sewage treatment device according to claim 3 is characterized in that: The sedimentation tank (1) is provided with a control chamber (25), a sedimentation tank (251) is installed in the control chamber (25), the sedimentation tank (251) is connected to a vent (254), a secondary sodium dosing port (27) is installed on the control chamber (25), and the secondary sodium dosing port (27) is connected to the front-end treatment tank (21) through a connecting pipe, an air pump (5) is installed in the control chamber (25), the inlet of the air pump (5) is connected to the sedimentation tank (251), the air pump (5) is connected to a return pipe (51), and the outlet of the return pipe (51) is located in the front-end treatment tank (21).

5. The integrated intelligent sewage treatment device according to claim 4 is characterized in that: The sedimentation tank (251) is provided with a liquid inlet pipe (252), the liquid inlet pipe (252) is connected to the third treatment tank (24), and the liquid inlet pipe (252) is used to precipitate the treated sewage. The control room (25) is equipped with a drop-in liquid level meter (6).

6. The integrated intelligent sewage treatment device according to claim 5, characterized in that: The control chamber (25) is provided with an overflow port (253), and the overflow port (253) is connected to the front-end processing pool (21) through an overflow pipe.

7. A method for an integrated intelligent sewage treatment device, based on the integrated intelligent sewage treatment device according to any one of claims 1 to 6, characterized in that: When sewage is treated, the sewage is first transported to the sedimentation tank (1) through the water inlet (11). After sedimentation in the sedimentation tank (1) for a period of time, the sewage outlet (13) is opened to discharge the sediment, and then the sewage is discharged into the integrated equipment (2) through the water outlet (12).

8. The method of the integrated intelligent sewage treatment device according to claim 7, characterized in that: The water outlet (12) discharges the sewage into the front-end treatment tank (21) through the connection port (26). At this time, the sewage enters the bottom of the front-end treatment tank (21) through the infusion tube (261) on the connection port (26). At this time, the stirring rod (31) is started to stir, and the microporous aerator (41) in the front-end treatment tank (21) is aerated, so that the sludge, sewage and oxygen in the front-end treatment tank (21) are fully contacted; The sewage is then transported in sequence through the circulating water pump in the integrated equipment (2), so that the sewage is treated in the first treatment tank (22), the second treatment tank (23) and the third treatment tank (24), and the treatment effect is improved by cooperating with the diffusion aerator (42). The treated liquid is stored in the sedimentation tank (251), and after monitoring and meeting the discharge standards, it is discharged through the vent (254).

9. The method of the integrated intelligent sewage treatment device according to claim 8, characterized in that: During the treatment process, the sodium dosing port (27) is used to perform dosing treatment, and the dissolved oxygen concentration and the chemical oxygen demand concentration are monitored respectively by the dissolved oxygen sensor and the chemical oxygen demand sensor provided in the front-end treatment tank (21), the first treatment tank (22), the second treatment tank (23) and the third treatment tank (24); When the dissolved oxygen concentration is too low, the aeration volume of the corresponding microporous aerator (41) and the diffusion aerator (42) is increased, the aeration volume is increased, and the dissolved oxygen concentration in the sewage is increased; when the dissolved oxygen concentration is too high, the aeration volume of the corresponding microporous aerator (41) and the diffusion aerator (42) is slowed down, the aeration volume is reduced, and the dissolved oxygen concentration in the sewage is reduced; When the chemical oxygen demand concentration is too low, the first step is to determine whether the dosage is abnormal through the input level meter (6). If abnormal, the sodium dosage is adjusted accordingly, and the chemical oxygen demand sensor is used to monitor again within a limited time. When the chemical oxygen demand concentration is high, the oxygen consumption for organic matter degradation increases, and the dissolved oxygen is consumed rapidly. The aeration volume of the corresponding microporous aerator (41) and the diffusion aerator (42) is increased, and the aeration intensity is increased to maintain the dissolved oxygen concentration. When the chemical oxygen demand concentration is insufficient, the aeration volume of the corresponding microporous aerator (41) and the diffusion aerator (42) is reduced to ensure nitrification reaction and organic matter decomposition, and maintain the balance between the chemical oxygen demand concentration and the dissolved oxygen concentration. At the same time, an ultrasonic sensor is provided in the front-end treatment tank (21) to monitor the concentration of suspended solids in the mixed liquid; When the concentration is too low, the ultrasonic sensor monitoring data is fed back to the processor, and the stirring rate of the mixer is increased to avoid the presence of sedimentation sludge in the front-end treatment tank (21) and affect the concentration of suspended solids in the mixed liquid. The concentration is continuously monitored to see if it is normal. If it is still low, it is determined that there is less sludge in the front-end treatment tank (21), and the air pump (5) is started to return the sludge in the sedimentation tank (251) to the front-end treatment tank (21) through the return pipe (51), thereby increasing the concentration of suspended solids in the mixed liquid. When the concentration is low and the mixer speed is increased, secondary monitoring is performed and the monitoring results are fed back to the processor with a delay. When the concentration is still low, the processor controls the diffusion aerator (42) in the first treatment tank (22), the second treatment tank (23) and the third treatment tank (24) to increase the aeration volume, thereby increasing the suspended solids concentration of the mixed liquor in the back-end treatment; When the concentration is too high, the ultrasonic sensor monitoring data is fed back to the processor, and the stirring rate of the mixer is reduced. The concentration is continuously monitored to see if it is normal. If it is still high, it is determined that there is too much sludge in the front-end treatment tank (21), and the liquid inlet pump is started to transport the sewage to the front-end treatment tank (21) to reduce the suspended solids concentration of the mixed liquid. When monitoring the suspended solids concentration of the mixed liquor, if the concentration is high and the mixer speed is reduced, a secondary monitoring is performed, and the monitoring result is fed back to the processor with a delay. If the concentration is still high, the processor controls the diffusion aerator (42) in the first treatment tank (22), the second treatment tank (23) and the third treatment tank (24) to reduce the aeration volume, thereby reducing the suspended solids concentration of the mixed liquor in the back-end treatment; At the same time, the liquid level sensor is used to monitor the liquid level to avoid excessive liquid in the front-end treatment tank (21). When the monitored liquid level is lower than the set range, the liquid inlet pump is started to transport the sewage to the front-end treatment tank (21) through the liquid infusion pipe (261) to ensure that the liquid level is within the normal range. When the monitored liquid level is higher than the set range, the overflow port (253) is used to discharge the liquid to ensure that the liquid level is within the normal range.

10. The system of integrated intelligent sewage treatment device is characterized by: It comprises the integrated intelligent sewage treatment device as described in any one of claims 1 to 6.

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