Intelligent water affair management system

Abstract

An intelligent water affair management system disclosed by the present invention comprises a management system and a purification system, the purification system comprises a biological corridor pool, the biological corridor pool comprises a plurality of single pools, and each single pool is internally provided with a water inlet valve, a water outlet valve, an aeration valve, a stirrer and a sludge pump which are communicated with the interior of the single pool. The water inlet valve is communicated with an outlet of the grit chamber through a water inlet pipeline, the water outlet valve is communicated with an inlet of the magnetic coagulation tank, and the aeration valve is communicated with the air blower through an aeration pipeline; the management system is configured to control the plurality of single tanks to circularly operate according to the same process period, and the process period sequentially comprises a water inlet and anaerobic stage, a first aerobic stage, an anoxic stage, a second aerobic stage, a precipitation stage and a water outlet stage; when at least one single tank is in the water inlet stage, at least another single tank is in the water outlet stage. Continuous water inflow and continuous water outflow are achieved, flow fluctuation is greatly stabilized, and the stability and overall efficiency of system operation are improved.

Description

Technical Field

[0001] This application relates to the field of wastewater treatment technology, specifically to a smart water management system. Background Technology

[0002] With the acceleration of urbanization and increasingly stringent environmental protection requirements, the efficiency and stability of wastewater treatment facilities face greater challenges. Traditional continuous-flow wastewater treatment plants have long process flows, large land areas, and high infrastructure and operating costs. Sequencing batch reactors (SBR) and their variants (such as CASS and ICEAS) simplify the process by completing the influent, reaction, sedimentation, and effluent stages in the same reactor in a time sequence. However, when treating continuous influent, multiple tanks usually need to be connected in parallel and switched sequentially. There is still room for improvement in their overall treatment efficiency, resistance to shock loads, and operational control flexibility. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes:

[0004] A smart water management system includes a management system and a purification system. The purification system includes a coarse screen tank, a fine screen tank, a grit chamber, a biological corridor tank, a magnetic coagulation tank, a filtration tank, and a disinfection tank, which are connected sequentially along the wastewater flow direction. The biological corridor tank includes several individual tanks, each of which is equipped with an inlet valve, an outlet valve, an aeration valve, a stirrer, and a sludge pump that are connected to its interior. The inlet valve is connected to the outlet of the grit chamber through an inlet pipe, the outlet valve is connected to the inlet of the magnetic coagulation tank, the aeration valve is connected to a blower through an aeration pipe, and the sludge pump is connected to a sludge storage tank through a sludge pipe. The management system is configured to control multiple individual tanks to operate in a cyclical manner according to the same process cycle, wherein the process cycle includes, in sequence, an influent and anaerobic stage, a first aerobic stage, an anoxic stage, a second aerobic stage, a sedimentation stage, and an effluent stage; and to control the process cycles of the multiple individual tanks to be staggered in time, such that when at least one individual tank is in the influent stage, at least another individual tank is in the effluent stage.

[0005] One embodiment of the present invention addresses its technical problem by configuring the equipment within each single pool as follows: Within each process cycle, the equipment is configured as follows: Water intake and anaerobic stage: Water intake valve and agitator are opened; First aerobic stage: Keep the inlet valve open, the agitator closed, and the aeration valve open; During the anoxic stage: keep the inlet valve open, the aeration valve closed, and the agitator on; Second aerobic stage: Keep the inlet valve open, the agitator closed, and the aeration valve open, and close the inlet valve after a preset time. Sedimentation stage: Aeration valves and agitators are closed; Water discharge stage: The water discharge valve is opened to drain water, and the water discharge valve is closed after drainage is completed; Furthermore, when one of the two individual tanks enters the influent and anaerobic stage, the other individual tank enters the effluent stage.

[0006] The technical solution adopted by one embodiment of the present invention to solve its technical problem is that the total time consumed by the water inlet and anaerobic stage, the first aerobic stage, the anoxic stage, the second aerobic stage and the sedimentation stage is consistent with the time consumed by the water outlet stage.

[0007] The total time consumed in the influent and anaerobic stage, the first aerobic stage, the anoxic stage, the second aerobic stage, and the sedimentation stage is set to be consistent with the time consumed in the effluent stage. This ensures that each individual tank can immediately connect to the effluent stage after completing a full biological and sedimentation stage, and facilitates the matching and coordination of the cycle times of multiple individual tanks.

[0008] One embodiment of the present invention employs a technical solution to solve its technical problem as follows: the management system is configured to adjust the duration parameters of one or more stages in the process cycle based on feedback of influent or effluent water quality parameters (such as COD and ammonia nitrogen concentration).

[0009] One embodiment of the present invention adopts a technical solution to solve its technical problem as follows: the management system further includes an online water quality monitoring unit installed in each single tank. The online water quality monitoring unit is used to monitor the water quality parameters of the corresponding single tank in real time at the end of the sedimentation stage or the effluent stage. The management system is configured to extend or shorten the duration of the first aerobic stage and / or the second aerobic stage of the next process cycle or adjust the aeration intensity according to the water quality parameters of the effluent stage.

[0010] The technical solution adopted by one embodiment of the present invention to solve its technical problem is: the management system is configured to maintain a reference phase for each single pool, the reference phase defining the preset end time of the water discharge stage of the single pool under ideal cooperative conditions; When the predicted effluent end time of a single pool deviates from the reference phase due to the adjustment of the aerobic phase duration, and the deviation duration exceeds a preset threshold, the actual effluent end time of the single pool is brought back to the reference phase by adjusting the duration of one or more of the non-critical phases within the process cycle, so as to maintain the temporal coordination relationship between multiple single pools.

[0011] One embodiment of the present invention adopts a technical solution to solve its technical problem as follows: the non-critical stages include the water inlet and anaerobic stage, the anoxic stage and / or the sedimentation stage.

[0012] One embodiment of the present invention employs a technical solution to solve its technical problem as follows: the management system is configured to select the non-critical stages to be regulated in the following priority order: sedimentation stage > anoxic stage > influent and anaerobic stage.

[0013] The technical solution adopted by one embodiment of the present invention to solve its technical problem is as follows: The beneficial effects of this invention are as follows: By operating multiple biological treatment tanks in a refined staggered cycle, the wastewater treatment system achieves continuous influent and continuous effluent, which greatly reduces flow fluctuations, reduces the impact on the front-end booster pump station and subsequent deep treatment units, and improves the stability and overall efficiency of the system operation. Each individual tank operates independently through a complete biochemical cycle (anaerobic-aerobic-anoxic-aerobic), resulting in thorough treatment. Furthermore, the operation of each tank does not interfere with the others, and the tanks have strong resistance to shock loads. The management system integrates online water quality monitoring and intelligent feedback control, and can dynamically adjust key process parameters (such as aerobic time and aeration rate) based on real-time water quality, thereby optimizing the treatment process and reducing energy consumption. A phase maintenance mechanism was introduced, which can maintain the coordinated timing between pools by fine-tuning non-critical stages when adjusting the process duration according to water quality, ensuring the stability of continuous operation mode and avoiding system operation rhythm disorder caused by parameter adjustment. Attached Figure Description

[0014] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the distribution of the purification system described in this embodiment; Figure 2 This is a schematic diagram of the equipment distribution within the biological corridor pool described in this embodiment. Detailed Implementation

[0015] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0016] In the description of this invention, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0017] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0018] In this invention, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0019] Reference Figure 1-2 This application proposes an embodiment of the intelligent water management system, which includes a management system and a purification system. The purification system includes a coarse screen tank 10, a fine screen tank 20, a grit chamber 30, a biological corridor tank 40, a magnetic coagulation tank 50, a filtration tank 60, and a disinfection tank 70 connected sequentially along the wastewater flow direction. The biological corridor tank 40 includes several individual tanks, each of which is equipped with an inlet valve V1, an outlet valve V2, an aeration valve V3, a stirrer 41, and a sludge pump 42 that are connected to its interior. The inlet valve V1 is connected to the outlet of the grit chamber 30 through an inlet pipe 45. The outlet valve V2 is connected to the inlet of the magnetic coagulation tank 50. The aeration valve V3 is connected to an aeration device 47 and a blower 43 through an aeration pipe 44. The sludge pump 42 is connected to a sludge storage tank 80 through a sludge pipe 46. Wastewater passes through coarse and fine screens to remove large suspended solids, and then through a grit chamber 30 to remove sand particles before entering the core biological corridor tank 40. The biological corridor tank 40 is composed of multiple identical single tanks connected in parallel. For example... Figure 2As shown, each individual tank is equipped with a mixer 41, an aeration device, and a sludge pump 42. The aeration device is connected to an aeration valve V3. Each tank has an inlet, which is connected to the main inlet pipe 45 from the grit chamber 30 via an inlet valve V1. Each tank also has an outlet, which is connected to the main outlet pipe leading to the magnetic coagulation tank 50 via an outlet valve V2. The aeration valve V3 is connected to a blower 43 via a branch pipe. The sludge pump 42 is connected to a sludge storage tank 80. The equipment in each individual tank can be independently controlled by the management system.

[0020] The management system is configured to control multiple individual tanks to operate in a cyclical manner according to the same process cycle, wherein the process cycle includes, in sequence, an influent and anaerobic stage, a first aerobic stage, an anoxic stage, a second aerobic stage, a sedimentation stage, and an effluent stage; and to control the process cycles of the multiple individual tanks to be staggered in time, such that when at least one individual tank enters the influent stage, at least another individual tank enters the effluent stage.

[0021] The management system controls the process cycles of the multiple individual pools to be staggered in terms of start time, forming a phase difference sequence. This ensures that at any given time, at least one individual pool is in the water inlet stage, while at least another individual pool is in the water outlet stage, thus achieving continuous water intake and continuous discharge of treated water at the system level.

[0022] In this embodiment, all individual tanks are controlled to operate according to the same standard process cycle T, but the start times of the cycles for each tank are staggered. The standard process cycle T includes the following six stages in sequence: influent and anaerobic stage time T1, first aerobic stage time T2, anoxic stage time T3, second aerobic stage time T4, sedimentation stage time T5, and effluent stage time T6.

[0023] The total time consumed in the influent and anaerobic stage, the first aerobic stage, the anoxic stage, the second aerobic stage, and the sedimentation stage is the same as the time consumed in the effluent stage, i.e., T1 + T2 + T3 + T4 + T5 = T6. The total cycle time is set to T = (T1 + T2 + T3 + T4 + T5) + T6 = 2 T6. Taking three individual tanks as an example, the management system controls the start time of the cycle for each of the three tanks to be T6 / 3, or T / 6, respectively. This ensures that at any given time, the three tanks are in different stages of the cycle. Specifically, it guarantees that at least one tank is in the influent stage T1, and at least one tank is in the effluent stage T6. This allows the system to continuously receive water from the grit chamber 30 into a tank that is currently receiving water, and to continuously discharge treated effluent from a tank that is currently discharging water to the magnetic coagulation tank 50, achieving stable hydraulic conditions similar to a continuous flow system while retaining the advantages of a sequencing batch process for biological treatment.

[0024] As a preferred option, the typical control of the equipment in each stage is as follows: Influent and anaerobic stage: Influent valve V1 is opened, agitator 41 is opened, and aeration valve V3 is closed. Wastewater enters the tank and undergoes reactions such as phosphorus release under anaerobic conditions.

[0025] First aerobic stage: Inlet valve V1 remains open, agitator 41 is closed, and aeration valve V3 is open. Nitrification and oxidation of organic matter occur, and phosphorus uptake may also occur.

[0026] Anoxic stage: Inlet valve V1 remains open, aeration valve V3 is closed, and agitator 41 is on. Denitrification is performed using carbon sources and nitrates in the inlet water.

[0027] The second aerobic stage: Inlet valve V1 remains open for a preset time before closing to ensure the total inlet water volume meets the standard. Agitator 41 is closed, and aeration valve V3 is opened. This further completes nitrification, organic matter degradation, and phosphorus uptake, ensuring effluent quality. After inlet valve V1 is closed, the tank undergoes a fully mixed aerobic reaction.

[0028] Settling stage T5: Aeration valve V3, inlet valve V1, and outlet valve V2 are closed, and agitator 41 is closed. Sludge flocculates and settles, forming supernatant.

[0029] Effluent stage T6: Effluent valve V2 is opened to discharge the supernatant into the magnetic coagulation tank 50. The dosing room 51 adds chemicals to the magnetic coagulation tank 50. After drainage is completed, effluent valve V2 is closed.

[0030] Optionally, at the end of the drainage period or after drainage, the sludge pump 42 can be turned on to discharge some of the remaining sludge to the sludge storage tank 80, which then sends the stored sludge to the sludge dewatering room 81 for dewatering treatment. After that, the single tank enters the next cycle.

[0031] To achieve intelligent operation, each individual pool is also equipped with an online water quality monitoring unit 12, which can monitor parameters such as dissolved oxygen, oxidation-reduction potential, ammonia nitrogen, and nitrate nitrogen in the pool in real time.

[0032] The management system has adaptive control capabilities. For example, during the effluent stage of a single tank, the management system acquires effluent water quality data such as ammonia nitrogen levels. If the ammonia nitrogen level exceeds the set upper limit, the management system can determine that the aerobic time for that tank in the previous cycle was insufficient. Therefore, when determining the parameters for the next operating cycle of that tank, the management system will automatically extend the duration of its first aerobic stage T2 and / or second aerobic stage T4 to ensure complete nitrification. Conversely, if the effluent ammonia nitrogen is extremely low and the total nitrogen meets the standard, the aerobic time can be appropriately shortened to save energy.

[0033] However, adjusting the duration of the aerobic phase in a single tank will directly change the predicted end time of its entire process cycle, which may disrupt the original phase coordination relationship between it and other single tanks, i.e., the fixed effluent time interval.

[0034] To maintain the continuous operation rhythm of the system as a whole, a reference phase is maintained for each individual pool. The reference phase defines the preset end time of the water discharge phase of the individual pool under ideal coordinated conditions. When the predicted end time of effluent discharge in a single pool deviates from the reference phase due to the adjustment of the aerobic phase duration, and the deviation duration exceeds a preset threshold. Within the process cycle, by adjusting the duration of one or more of the non-critical stages, the actual effluent discharge time of the single pool is brought back to the reference phase, thereby maintaining the temporal coordination relationship between multiple single pools.

[0035] The management system presets a reference phase for each individual pool. The reference phase is an ideal, fixed end point of the effluent stage, represented by a fixed position on the time sequence diagram. When adjustments to the aerobic time cause a time deviation between the predicted effluent end point of a pool and its reference phase, and this time deviation exceeds an allowable threshold (e.g., 2% of the cycle length T), the management system will initiate a compensation procedure. The goal of the compensation is to adjust the duration of one or more non-critical stages in the next cycle of that pool to compensate for the time deviation, bringing the actual operating rhythm of the pool back to the reference phase. In this embodiment, returning to the reference phase means that the time deviation is less than the allowable threshold.

[0036] The non-critical stages typically refer to stages that have a relatively small impact on the core indicators of treatment effectiveness, or stages that allow for flexible adjustments within a certain range, such as the sedimentation stage, the anoxic stage, and the influent and anaerobic stage.

[0037] The management system selects non-critical phases for adjustment based on the following priorities: First, prioritize adjusting the sedimentation stage: while ensuring effective mud-water separation, the sedimentation time can be fine-tuned within a safe range. Shortening the sedimentation stage allows for earlier effluent discharge, compensating for delays caused by increased aerobic time; extending the sedimentation stage delays effluent discharge, absorbing the advance caused by reduced aerobic time.

[0038] Secondly, adjust the anoxic phase: If adjusting the sedimentation phase is insufficient to fully compensate, the duration of the anoxic phase can be fine-tuned. This may slightly affect denitrification efficiency, but the management system can adjust it based on the influent carbon source.

[0039] Finally, consider adjusting the water intake and anaerobic phases: as a last resort, the water intake time can be adjusted.

[0040] Both the coarse screen tank 10 and the fine screen tank 20 are equipped with screen devices; the filtration tank 60 uses a fiber disc filter; the magnetic coagulation tank is connected to the dosing equipment in the dosing room; the disinfection tank 70 uses ultraviolet light for disinfection; the management system is connected to the screen devices, the fiber disc filter, and the ultraviolet disinfection equipment. The management system is configured as follows: The start-up, shutdown, and sludge removal actions of the bar screen equipment are automatically controlled based on the water level difference before and after the bar screen or a timed signal. The filtration, backwashing, and sludge discharge processes of the fiber disc filter are automatically controlled based on the water level in the filter tank, filtration time, or transmembrane pressure difference. The dosing rate of various agents in the dosing equipment is adjusted in real time according to the influent flow rate in the magnetic coagulation tank. Based on the water flow rate from the disinfection tank, the operating power of the ultraviolet disinfection device is automatically adjusted to ensure that the prescribed disinfection dosage is achieved, and it automatically enters standby or low power consumption mode when there is no water flow.

[0041] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A smart water management system, characterized in that, The system includes a management system and a purification system. The purification system includes a coarse screen tank (10), a fine screen tank (20), a grit chamber (30), a biological corridor tank (40), a magnetic coagulation tank (50), a filtration tank (60), and a disinfection tank (70) connected sequentially along the wastewater flow direction. The biological corridor tank (40) includes several individual tanks. Each individual tank is equipped with an inlet valve (V1), an outlet valve (V2), an aeration valve (V3), a stirrer (41), and a sludge pump (42) that are connected to its interior. The inlet valve (V1) is connected to the outlet of the grit chamber (30) through an inlet pipe (45). The outlet valve (V2) is connected to the inlet of the magnetic coagulation tank (50). The aeration valve (V3) is connected to the aeration device (47) and the blower (43) through an aeration pipe (44). The sludge pump (42) is connected to the sludge storage tank (80) through a sludge pipe (46). The management system is configured to control multiple individual tanks to operate in a cyclical manner according to the same process cycle, wherein the process cycle includes, in sequence, an influent and anaerobic stage, a first aerobic stage, an anoxic stage, a second aerobic stage, a sedimentation stage, and an effluent stage; and to control the process cycles of the multiple individual tanks to be staggered in time, such that when at least one individual tank enters the influent stage, at least another individual tank enters the effluent stage.

2. The intelligent water management system according to claim 1, characterized in that, Within each process cycle, the equipment in each single pool is configured as follows: Water intake and anaerobic stage: Water intake valve (V1) and agitator (41) are opened; First aerobic stage: Keep the inlet valve (V1) open, the agitator (41) closed, and the aeration valve (V3) open; Anoxic stage: Keep the inlet valve (V1) open, the aeration valve (V3) closed, and the agitator (41) on; Second aerobic stage: Keep the inlet valve (V1) open, the agitator (41) closed, the aeration valve (V3) open, and close the inlet valve (V1) after a preset time. Sedimentation stage: Aeration valve (V3) and agitator (41) are closed; Water discharge stage: The water discharge valve (V2) is opened to drain water, and the water discharge valve (V2) is closed after the drainage is completed.

3. The intelligent water management system according to claim 1, characterized in that, The total time consumed by the influent and anaerobic stage, the first aerobic stage, the anoxic stage, the second aerobic stage, and the sedimentation stage is the same as the time consumed by the effluent stage.

4. The intelligent water management system according to claim 3, characterized in that, The single pool is provided with at least three, and the time taken for the water discharge stage is T. The start time of the cycle of the three single pools is T / 6 in sequence.

5. The intelligent water management system according to claim 1, characterized in that, The management system is configured to adjust the duration parameters of one or more stages in the process cycle based on feedback from influent or effluent water quality parameters.

6. The intelligent water management system according to claim 1, characterized in that, The management system also includes an online water quality monitoring unit installed in each individual tank. The online water quality monitoring unit is used to monitor the water quality parameters of the corresponding individual tank in real time at the end of the sedimentation stage or the effluent stage. The management system is configured to extend or shorten the duration of the first aerobic stage and / or the second aerobic stage of the next process cycle or adjust the aeration intensity according to the water quality parameters of the effluent stage.

7. The intelligent water management system according to claim 6, characterized in that, The management system is configured as follows: A reference phase is maintained for each individual pool, and the reference phase defines the preset end time of the water discharge phase of that individual pool under ideal cooperative conditions; When the predicted end time of effluent discharge in a single pool deviates from the reference phase due to the adjustment of the aerobic phase duration, and the deviation duration exceeds a preset threshold. During the process cycle, by adjusting the duration of one or more of the non-critical stages, the actual effluent discharge time of the single pool is brought back to the reference phase.

8. The intelligent water management system according to claim 7, characterized in that, The non-critical stages include the influent and anaerobic stage, the anoxic stage, and / or the sedimentation stage.

9. The intelligent water management system according to claim 8, characterized in that, The management system is configured to select the non-critical stages to be regulated in the following priority order: sedimentation stage > anoxic stage > influent and anaerobic stage.

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