CN214734782U - Accurate aeration intelligent automatic control system of sewage treatment plant - Google Patents
Accurate aeration intelligent automatic control system of sewage treatment plant Download PDFInfo
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- CN214734782U CN214734782U CN202120465404.3U CN202120465404U CN214734782U CN 214734782 U CN214734782 U CN 214734782U CN 202120465404 U CN202120465404 U CN 202120465404U CN 214734782 U CN214734782 U CN 214734782U
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Abstract
The utility model provides an intelligent automatic control system of accurate aeration of sewage treatment plant, including PLC control module, model calculation module, first monitoring module, second monitoring module, third monitoring module and gas flow automatic regulating valve. The accurate aeration control strategy of superposing feedback signals by feedforward signals is adopted, data such as inflow, inflow COD (chemical oxygen demand) and inflow ammonia nitrogen are used as feedforward signals, data such as water level, water DO (dissolved oxygen) and outflow ammonia nitrogen are used as feedback signals, the air demand of each biological reaction tank is calculated by a model calculation module, the start and stop of an air blower, the opening of a guide vane or the frequency of a frequency converter and the opening of an automatic gas flow regulating valve are automatically controlled by a PLC (programmable logic controller) control module, and therefore the air supply volume of the air blower and the air volume of each area of the biological reaction tank are regulated. On the premise of ensuring that the effluent index of the sewage plant reaches the standard, manual operation is reduced, the stability of ammonia nitrogen and DO in an aeration system is effectively ensured, the energy consumption of a blast system is reduced, and the operating cost is reduced.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to an intelligent automatic control system of accurate aeration of sewage treatment plant.
Background
In recent years, with the continuous improvement of the living standard of people, higher requirements are made on water quality treatment, and in addition, the establishment of a large number of sewage treatment plants makes the sewage discharge standard stricter. The improvement of the discharge standard further aggravates the energy consumption in the sewage treatment process. At present, sewage treatment plants in China consume large energy in the sewage treatment process, and especially have large energy consumption in the biochemical treatment stages such as aeration and the like. The sewage treatment plant has the problems of high energy consumption and high operation cost, so that the construction and development of the urban sewage treatment plant are greatly hindered.
At present, the condition of unstable quality and water quantity of the water coming from a sewage plant exists, and particularly, the sewage plant for controlling the overflow pollution of a confluence area has the problems of small sewage quantity and high concentration in sunny days, but large water quantity and large load impact in rainy days; meanwhile, the aeration design of the sewage plant generally adopts a mode of manually controlling the aeration amount, is limited to the level of operators of the sewage plant, cannot be adjusted in real time, causes unnecessary waste, and increases the operation cost of the sewage plant.
The invention patent with the application number of CN201610757850.5 discloses an aeration control system and an aeration control method. The system comprises: the device comprises a data acquisition unit, a PLC control unit and an aeration unit, wherein the data acquisition unit comprises an OUR tester, an OTE tester and a DO tester, the PLC control unit comprises hardware such as a control cabinet and a display screen and control software, the control software is a program for realizing automatic control, and the aeration unit comprises an air blower, a micropore aeration head and a flowmeter.
The invention patent with the application number of CN201910620544.0 discloses an aeration control system and a method. The system comprises: the water inlet meter is arranged on the water inlet pipe of the aerobic tank; the first dissolved oxygen online instrument and the first ammonia nitrogen online instrument are respectively arranged at the tail end of the second section of the aerobic tank; the second dissolved oxygen online instrument and the second ammonia nitrogen online instrument are respectively arranged at the tail end of a fourth section of the pool body in the aerobic pool; the four gas flow meters and the four electric valves are respectively arranged on the four aeration branch pipes; and the control device can carry out dissolved oxygen feedforward and feedback aeration control, feedforward aeration compensation control and ammonia nitrogen aeration compensation control on the aeration in the aerobic tank as required by controlling the variable frequency air blowing equipment and the four electric valves according to the received measured values of the instruments.
However, the system has the defects that the effluent in the aeration system can not reach the standard and the aeration energy consumption can not be reduced at the same time. In view of the above, there is a need to design an improved intelligent automatic control system for precise aeration of a sewage treatment plant to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an intelligent automatic control system of accurate aeration of sewage treatment plant can reduce the energy consumption under the prerequisite that the assurance goes out water index up to standard, reduces manual operation, guarantees sewage treatment technology steady operation, reduces the working costs, realizes the fine-grained operation management of sewage plant.
In order to realize the purpose of the utility model, the utility model provides an intelligent automatic control system for the precise aeration of a sewage treatment plant, which comprises a PLC control module, a model calculation module embedded in the PLC control module, and a first monitoring module, a second monitoring module and a third monitoring module which are respectively and electrically connected with the PLC control module;
the first monitoring module is arranged at the water inlet of the biological reaction tank and is used for monitoring water flow and water quality data of the water inlet of the biological reaction tank; the second monitoring module is arranged in the biological reaction tank and used for monitoring water level and water quality data in the biological reaction tank;
the PLC control module is used for respectively acquiring monitoring data of the first monitoring module and the second monitoring module, then correspondingly converting the monitoring data into feedforward signals and feedback signals, generating control instructions according to calculation results obtained by calculating the feedforward signals and the feedback signals by the model calculation module by adopting a control strategy of superposing the feedforward signals and the feedback signals, and automatically adjusting the air output of the air blower and the air output of the biological reaction tank to realize accurate aeration.
As a further improvement of the utility model, the PLC control module includes a control signal output module and a signal acquisition module; the signal acquisition module is electrically connected with the first monitoring module, the second monitoring module and the third monitoring module respectively, and is used for acquiring monitoring data and converting the monitoring data into monitoring signals.
As a further improvement of the utility model, the first monitoring module comprises an inflow flow monitor, an inflow COD monitor and an inflow ammonia nitrogen monitor; the first monitoring module transmits water inlet monitoring data to the signal acquisition module, and the signal acquisition module obtains a feedforward signal.
As a further improvement of the utility model, the second monitoring module comprises a water outlet level monitor, a plurality of water outlet COD monitors and a water outlet ammonia nitrogen monitor; the second monitoring module transmits the water outlet monitoring data to the signal acquisition module, and the signal acquisition module obtains a feedback signal.
As a further improvement, be provided with operation model control application on the model calculation module, its with PLC control module electric connection, according to the monitoring signal of PLC control module's signal acquisition module transmission calculates the demand volume in the biological reaction pond to the computational result that will obtain transmits back PLC control module's control signal output module.
As a further improvement of the utility model, the third monitoring module is a plurality of and sets up the gas flowmeter on air blower house steward and air blower branch pipe respectively.
As a further improvement, the intelligent automatic control system for the precise aeration of the sewage treatment plant further comprises an automatic gas flow regulating valve arranged on the branch pipe of the air blower, and the automatic gas flow regulating valve is electrically connected with the control signal output module.
As a further improvement of the utility model, a plurality of the effluent COD monitors are arranged at different positions of the aerobic area of the biological reaction tank; the effluent ammonia nitrogen monitor is arranged in the anoxic zone of the biological reaction tank.
As a further improvement of the utility model, the PLC control module still includes communication module for communicate and data exchange with the external world.
As a further improvement, the PLC control module automatic control air-blower open stop, the aperture of stator, the frequency converter and gas flow automatic regulating valve's aperture to adjust the air supply volume of air-blower and each regional tolerance of biological reaction pond.
The utility model has the advantages that:
1. the utility model provides an intelligent automatic control system of accurate aeration of sewage treatment plant, the accurate aeration control strategy of feedforward signal stack feedback signal has been adopted, with inflow, data such as COD and the ammonia nitrogen of intaking are as feedforward signal, with the water level of going out, go out water DO, data such as the ammonia nitrogen of going out are as feedback signal, calculate each regional demand tolerance and total demand tolerance of each biological reaction pond (dissolved oxygen control area) through model calculation module, then, again by opening of PLC control module automatic control air-blower open, the opening of aperture or the converter of stator and the aperture of gas flow automatic regulating valve, thereby adjust the air supply volume of air-blower and each regional tolerance of biological reaction pond. On the premise of ensuring that the effluent index of the sewage plant reaches the standard, the manual operation is reduced, the energy consumption is reduced, the fine operation management of the sewage plant is realized, the stability of ammonia nitrogen and DO in an aeration system is effectively ensured, the energy consumption of a blast system is reduced, and the operating cost of the sewage plant is reduced.
2. The utility model provides an intelligent automatic control system of accurate aeration of sewage treatment plant has adopted the structural design that three on-line monitoring module is united, realizes that the aeration system carries out closed loop feedback control under the accurate aeration control strategy of feedforward signal stack feedback signal, and the high-efficient play water DO of guaranteeing the biological reaction pond lies in control range, and the operation mechanism of this joint structure lies in: the first monitoring module carries out air supply correction by monitoring inflow and water quality so as to meet the requirement of continuous change of pollution load; the second online monitoring module monitors the ammonia nitrogen content of the effluent of the anaerobic zone in real time, ensures the ammonia nitrogen removal effect, monitors DO at the tail end of an aeration tank (aerobic zone), and ensures the stability of ammonia nitrogen and DO in an aeration system. Meanwhile, the third monitoring module monitors the gas flow of the blower in real time and feeds the gas flow back to the PLC control module, the PLC control module integrates the monitoring data of the three monitoring modules, the monitoring data are transmitted to the model calculation module to be calculated, a control instruction is obtained, the air supply quantity of the blower and the air quantity of the biological reaction tank are adjusted, and therefore a closed-loop feedback control system is achieved.
Drawings
FIG. 1 is a schematic diagram of a module of an intelligent automatic control system for precise aeration of a sewage treatment plant provided by the utility model.
FIG. 2 is a schematic structural view of the intelligent automatic control system for precise aeration in a sewage treatment plant.
Reference numerals
1-a PLC control module; 11-a communication module; 12-a control signal output module; 13-a signal acquisition module; 2-a first monitoring module; 21-inflow monitoring instrument; 22-influent COD monitor; 23-influent ammonia nitrogen monitor; 3-a second online monitoring module; 31-effluent water level monitor; 32-effluent COD monitor; 33-effluent ammonia nitrogen monitor; 4-a third monitoring module; 5-a model calculation module; 6-automatic gas flow regulating valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Please refer to fig. 1, the utility model provides an intelligent automatic control system for precise aeration of sewage treatment plant, which comprises a PLC control module 1, a model calculation module 5 embedded in the PLC control module 1, and a first monitoring module 2, a second monitoring module 3, a third monitoring module 4 and a gas flow automatic regulating valve 6 which are respectively and electrically connected with the PLC control module 1.
Referring to fig. 1 and 2, the PLC control module 1 includes a communication module 11 for communicating with the outside and exchanging data, a control signal output module 12, and a signal acquisition module 13. The input end of the signal acquisition module 13 is electrically connected to the output ends of the first monitoring module 2, the second monitoring module 3 and the third monitoring module 4, and is used for acquiring monitoring data and converting the monitoring data into monitoring signals. The input end of the control signal output module 12 is electrically connected with the model calculation module 5, and the output end is electrically connected with the gas flow automatic regulating valve 6 and the blower respectively, and is used for producing a control instruction after obtaining the calculation result of the model calculation module 5, and transmitting the control instruction to the gas flow automatic regulating valve 6 and the blower.
In this embodiment, the PLC control module 1 automatically controls the start/stop of the blower, the opening degree of the guide vane, the frequency of the frequency converter, and the opening degree of the gas flow rate automatic regulating valve 6, thereby regulating the air supply amount of the blower and the gas amount in each area of the biological reaction tank.
Referring to fig. 2, the first monitoring module 2 is disposed at the water inlet of the biological reaction tank and is configured to monitor water flow and water quality data at the water inlet of the biological reaction tank.
Specifically, the first monitoring module 2 comprises an inlet water flow monitor 21, an inlet water COD monitor 22 and an inlet water ammonia nitrogen monitor 23; the first monitoring module 2 transmits water inlet monitoring data to the signal acquisition module 13, and the signal acquisition module 13 converts the water inlet monitoring data into a feedforward signal.
In this embodiment, the second monitoring module 3 is disposed inside the biological reaction tank and is used for monitoring water level and water quality data in the biological reaction tank; the second monitoring module 3 comprises an effluent water level monitor 31, a plurality of effluent COD monitors 32 and an effluent ammonia nitrogen monitor 33; the second monitoring module 3 transmits the water outlet monitoring data to the signal acquisition module 13, and the signal acquisition module 13 converts the water outlet monitoring data into a feedback signal.
Specifically, a plurality of effluent COD monitors 32 are disposed at different positions of the aerobic zone of the biological reaction tank; the effluent ammonia nitrogen monitor 33 is arranged in the anoxic zone of the biological reaction tank.
In the present embodiment, the third monitoring module 4 is a plurality of gas flow meters respectively disposed on the blower main pipe and the blower branch pipe.
Referring to fig. 1, the model calculation module 5 is provided with an operation model control application program, which is electrically connected to the PLC control module 1 in a bidirectional manner, calculates the gas demand in the biological reaction tank according to the monitoring signals (feedforward signals and feedback signals) transmitted by the signal acquisition module 13 of the PLC control module 1, and transmits the obtained calculation result back to the control signal output module 12 of the PLC control module 1.
Specifically, the calculation module 5 adopts a feedback superposition feedforward control strategy, calculates a crude gas demand value of each biological reaction tank according to input feedforward signals (inlet water flow, inlet water COD, inlet water ammonia nitrogen and the like), calculates a gas demand regulating value of each biological reaction tank according to input feedback signals (outlet water level, outlet water COD, outlet water ammonia nitrogen and the like), and finally calculates the gas quantity of each aeration position.
In this embodiment, the main service object of the automatic control system is a fully underground sewage treatment plant in a certain combined overflow pollution control area, the main sewage treatment process of the sewage treatment plant is the treatment process of A2O, incoming sewage flows into an intake well through a combined culvert, a thick grating and a rotating grating are arranged behind the intake well, the incoming sewage enters a biological reaction tank after deslagging, and the purpose of biodegradation and oxidation is achieved through anaerobic and anoxic reactions. A first monitoring module 2 formed by combining an inlet water flow monitor 21, an inlet water COD monitor 22 and an inlet water ammonia nitrogen monitor 23 is arranged in front of the inlet well (namely the water inlet); third monitoring modules 4, namely gas flow meters, are arranged on the main pipe and the branch pipes of the blower, and an automatic gas flow regulating valve 6 is also arranged on the branch pipes of the blower; the biological reaction tank is provided with a second on-line monitoring module 3, wherein an anoxic area is provided with an effluent water level monitor 31, and different positions of an aerobic area are provided with an effluent COD monitor 32.
The utility model provides an intelligent automatic control system for the accurate aeration of sewage treatment plant, the accurate aeration control strategy of feed forward signal superposition feedback signal is adopted, the data such as inflow, inflow COD and inflow ammonia nitrogen are taken as feed forward signals, the data such as water level, outflow DO, outflow ammonia nitrogen are taken as feedback signals, the air demand and the total air demand of each area of each biological reaction tank (dissolved oxygen control area) are calculated through a model calculation module, then, the start and stop of a blower, the opening of a guide vane or the frequency of a frequency converter and the opening of an automatic gas flow regulating valve are automatically controlled by a PLC control module, thereby the air supply of the blower and each area air quantity of the biological reaction tank are regulated, under the premise of ensuring the effluent index of a sewage plant to reach the standard, the manual operation is reduced, the energy consumption is reduced, the fine operation management of the sewage plant is realized, the stability of the aeration system and the ammonia nitrogen in the aeration system is effectively ensured, the energy consumption of the blast system is reduced, the operating cost of a sewage treatment plant is reduced, and the operating principle of the sewage treatment plant is as follows:
the PLC control module 1 respectively collects water inlet monitoring data of the first monitoring module 2 and water outlet monitoring data of the second monitoring module 3, and then correspondingly converts the monitoring data into a feedforward signal and a feedback signal; meanwhile, blower air volume monitoring data of the third monitoring module 4 are collected, a signal collection module 13 in the PLC control module 1 integrates the monitoring data of the three monitoring modules and transmits the data to a model calculation module 5, a control strategy of superposing a feedback signal by a feedforward signal is adopted, the model calculation module 5 calculates the feedforward signal and the feedback signal in combination with the blower air volume monitoring data to obtain a calculation result and feeds the calculation result back to a control signal output module 12 in the PLC control module 1, and the control signal output module 12 generates a control instruction to automatically adjust the air volume of the blower and the air volume of the biological reaction tank, so that a closed-loop feedback control system is realized, and accurate aeration is realized.
Example one
After a certain sewage plant adopts the accurate automatic aeration control system, when the set value of dissolved oxygen is changed, the control deviation can return to be within +/-0.3 mg/L within 30 min. In the continuous control of one week, the time when the control precision of the real-time value of the dissolved oxygen and the set value (dynamic state) is within +/-0.3 mg/L exceeds 90 percent. On the premise of reaching the water quality standard, the blast aeration energy consumption is reduced by about 20 percent.
To sum up, the utility model provides an intelligent automatic control system of accurate aeration of sewage treatment plant, including PLC control module, embedded in model calculation module among the PLC control module and respectively with PLC control module electric connection's first monitoring module, second monitoring module, third monitoring module and gas flow automatic regulating valve. An accurate aeration control strategy of superposing feedback signals by feedforward signals is adopted, data such as inflow, inflow COD (chemical oxygen demand), inflow ammonia nitrogen and the like are used as feedforward signals, data such as water level, water DO (dissolved oxygen), outflow ammonia nitrogen and the like are used as feedback signals, the air demand and the total air demand of each area of each biological reaction tank (dissolved oxygen control area) are calculated by a model calculation module, and then the start and stop of a blower, the opening of a guide vane or the frequency of a frequency converter and the opening of an automatic gas flow regulating valve are automatically controlled by a PLC (programmable logic controller) control module, so that the air supply quantity of the blower and the air quantity of each area of the biological reaction tank are regulated. On the premise of ensuring that the effluent index of the sewage plant reaches the standard, the manual operation is reduced, the energy consumption is reduced, the fine operation management of the sewage plant is realized, the stability of ammonia nitrogen and DO in an aeration system is effectively ensured, the energy consumption of a blast system is reduced, and the operating cost of the sewage plant is reduced.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides an intelligent automatic control system of accurate aeration of sewage treatment plant which characterized in that: the accurate aeration intelligent automatic control system of the sewage treatment plant comprises a PLC control module (1), a model calculation module (5) embedded in the PLC control module (1), and a first monitoring module (2), a second monitoring module (3) and a third monitoring module (4) which are respectively and electrically connected with the PLC control module (1);
the first monitoring module (2) is arranged at the water inlet of the biological reaction tank and is used for monitoring water flow and water quality data of the water inlet of the biological reaction tank; the second monitoring module (3) is arranged in the biological reaction tank and is used for monitoring water level and water quality data in the biological reaction tank;
the PLC control module (1) collects monitoring data of the first monitoring module (2) and the second monitoring module (3) respectively, then the monitoring data are correspondingly converted into feedforward signals and feedback signals, a control strategy of superposing the feedforward signals and the feedback signals is adopted, and according to a calculation result obtained by calculating the feedforward signals and the feedback signals by the model calculation module (5), a control instruction is generated to automatically adjust the air supply amount of an air blower and the air amount of a biological reaction tank, so that accurate aeration is realized.
2. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 1, characterized in that: the PLC control module (1) comprises a control signal output module (12) and a signal acquisition module (13); the signal acquisition module (13) is respectively electrically connected with the first monitoring module (2), the second monitoring module (3) and the third monitoring module (4) and is used for acquiring monitoring data and converting the monitoring data into monitoring signals.
3. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 2, characterized in that: the first monitoring module (2) comprises an inflow water flow monitor (21), an inflow water COD monitor (22) and an inflow water ammonia nitrogen monitor (23); the first monitoring module (2) transmits water inlet monitoring data to the signal acquisition module (13), and the signal acquisition module (13) obtains a feedforward signal.
4. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 2, characterized in that: the second monitoring module (3) comprises an effluent water level monitor (31), a plurality of effluent COD monitors (32) and an effluent ammonia nitrogen monitor (33); the second monitoring module (3) transmits the effluent monitoring data to the signal acquisition module (13), and the signal acquisition module (13) obtains a feedback signal.
5. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 2, characterized in that: and an operation model control application program is arranged on the model calculation module (5), is electrically connected with the PLC control module (1), calculates the gas demand in the biological reaction tank according to the monitoring signal transmitted by the signal acquisition module (13) of the PLC control module (1), and transmits the obtained calculation result back to the control signal output module (12) of the PLC control module (1).
6. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 1, characterized in that: the third monitoring modules (4) are a plurality of gas flow meters respectively arranged on the blower main pipe and the blower branch pipe.
7. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 2, characterized in that: the intelligent automatic control system for the accurate aeration of the sewage treatment plant further comprises an automatic gas flow regulating valve (6) arranged on the branch pipe of the air blower, and the automatic gas flow regulating valve is electrically connected with the control signal output module (12).
8. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 4, characterized in that: the plurality of effluent COD monitors (32) are arranged at different positions of an aerobic area of the biological reaction tank; the effluent ammonia nitrogen monitor (33) is arranged in the anoxic zone of the biological reaction tank.
9. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 2, characterized in that: the PLC control module (1) further comprises a communication module (11) which is used for communicating with the outside and exchanging data.
10. The intelligent and automatic control system for precise aeration of the sewage treatment plant according to claim 7, characterized in that: the PLC control module (1) automatically controls the starting and stopping of the air blower, the opening degree of the guide vane, the frequency of the frequency converter and the opening degree of the gas flow automatic regulating valve (6), so that the air supply quantity of the air blower and the gas quantity of each area of the biological reaction tank are regulated.
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| CN202120465404.3U CN214734782U (en) | 2021-03-04 | 2021-03-04 | Accurate aeration intelligent automatic control system of sewage treatment plant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114291912A (en) * | 2022-01-07 | 2022-04-08 | 北京首创生态环保集团股份有限公司 | Sewage treatment aeration system transformation method based on biological mathematical model |
| CN114920358A (en) * | 2022-05-07 | 2022-08-19 | 北京航天威科环保科技有限公司 | RBS intelligent control method for sewage plant |
| CN115028325A (en) * | 2022-07-25 | 2022-09-09 | 湖南子宏生态科技股份有限公司 | Service area sewage tide control system |
| CN115259413A (en) * | 2022-07-25 | 2022-11-01 | 苏州水星环保工业***有限公司 | Air volume control method for precise aeration system |
| CN116375233A (en) * | 2023-03-24 | 2023-07-04 | 寿县国祯水处理有限公司 | Aeration system for regional linkage lifting and oxygen demand linkage calculation method |
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2021
- 2021-03-04 CN CN202120465404.3U patent/CN214734782U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114291912A (en) * | 2022-01-07 | 2022-04-08 | 北京首创生态环保集团股份有限公司 | Sewage treatment aeration system transformation method based on biological mathematical model |
| CN114291912B (en) * | 2022-01-07 | 2022-10-21 | 北京首创生态环保集团股份有限公司 | Sewage treatment aeration system transformation method based on biological mathematical model |
| CN114920358A (en) * | 2022-05-07 | 2022-08-19 | 北京航天威科环保科技有限公司 | RBS intelligent control method for sewage plant |
| CN115028325A (en) * | 2022-07-25 | 2022-09-09 | 湖南子宏生态科技股份有限公司 | Service area sewage tide control system |
| CN115259413A (en) * | 2022-07-25 | 2022-11-01 | 苏州水星环保工业***有限公司 | Air volume control method for precise aeration system |
| CN115028325B (en) * | 2022-07-25 | 2024-01-23 | 湖南子宏生态科技股份有限公司 | Service area sewage tide control system |
| CN116375233A (en) * | 2023-03-24 | 2023-07-04 | 寿县国祯水处理有限公司 | Aeration system for regional linkage lifting and oxygen demand linkage calculation method |
| CN116375233B (en) * | 2023-03-24 | 2024-04-12 | 寿县国祯水处理有限公司 | Aeration system for regional linkage lifting and oxygen demand linkage calculation method |
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