CN102156432B - Method for controlling aeration in biochemical reaction tank in real time - Google Patents
Method for controlling aeration in biochemical reaction tank in real time Download PDFInfo
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Abstract
The invention discloses a method for controlling aeration in a biochemical reaction tank in real time. The method comprises the following steps of: arranging a monitor at a water inlet end of the reaction tank, in the tank, at a water outlet end and at a sludge reflux port of a sedimentation tank; transmitting water quality and water quantity data acquired by the monitor to a central control system through a PLC (Programmable Logic Controller); calculating oxygen demand, a dissolved oxygen target value and sludge reflux quantity of the biochemical reaction tank by a real-time biochemical reaction model module in the central control system according to the water quality and water quantity data; converting the oxygen demand of the biochemical reaction tank into air supply by an intelligent conversion module; calculating air valve opening and fan pressure data of the reaction tank by an air supply pipe network aerodynamic model module according to the air supply; transmitting the sludge reflux quantity, the air valve opening and the fan pressure data to an executing mechanism by the central control system; and controlling opening and closing of a valve, a fan and a reflux pump by the executing mechanism. By applying the method, real-time on-line control over the aeration of the biochemical reaction tank is realized.
Description
Technical field
The present invention relates to aeration rate method in a kind of real-time control biochemical reaction tank.
Background technology
Municipal effluent to be adopted take the biological treatment of activated sludge process as the basis, its ultimate principle is to utilize the artificial aeration, so that the active sludge Uniform Dispersion fully contacts with sewage, organic pollution materials in the sewage is synthesized and degrades, thereby reach the purpose of removing pollutant.
Biological treatment is the core facility of sewage treatment plant, and its operation control effect is directly connected to the processing power of whole sewage treatment plant.Biological treatment process is a complicated biochemical reaction process, and the factor that affects the active sludge microorganism activity comprises matrix condition (such as carbon source, nitrogenous source, phosphorus source, toxic chemical substance, heavy metal ion etc.) and environmental factor (such as temperature, pH, dissolved oxygen DO, interior backflow and external reflux etc.).Bioprocess technology control is exactly by changing some matrix condition and environmental factor, the degradation property that active sludge is played stably, the pollutant in the removal sewage.
Sewage treatment plant's automatic operating control always is the difficult point in the technical field of automation.The target that wherein accurate aeration is controlled and energy saving in running is pursued especially for a long time always.Traditional sewage treatment plant's aeration is based on the water quality reaching standard basis that guarantees to dispatch from the factory, and adopts relatively conservative control parameter to carry out control loop and adjusts.Biochemical reaction tank dissolved oxygen DO (DO) with A/O technique is controlled to be example, carries out smoothly in a reactor simultaneously for guaranteeing organic matter removal and nitration reaction, and the DO setting value is generally relatively high.Its consequence has increased the aerating system energy consumption on the one hand, causes simultaneously too much dissolved oxygen DO to be back to the oxygen-starved area and has restrained denitrifying carrying out.Because there are larger non-linear and hysteresis quality in DO value and oxygenation capacity in the aeration tank, the general control method is easy to cause the concussion of DO value, be difficult to make the DO value stabilization near the desired value that provides in real time, cause treatment effect undesirable, and increased the aeration control equipment regulation moving working frequencies such as fan blower, valve, further increased equipment loss.
Therefore, those skilled in the art is devoted to develop a kind of method that can control in real time aeration rate in the biochemical reaction tank.
Summary of the invention
Because the defects of prior art, the purpose of this invention is to provide a kind of method that solves the non-linear and hysteresis quality that DO value and oxygenation capacity existence are larger in the aeration tank.
For achieving the above object, the invention provides the method for aeration rate in a kind of real-time control biochemical reaction tank, comprising:
Step 1 places monitor water inlet end, pond, the water side of reaction tank;
Step 2, the water quality and quantity data of monitor collection are passed to central control system, comprise real-time biochemical reaction model module in the described central control system, intelligent conversion module and gas transmission pipeline net work gas dynamic models module, described real-time biochemical reaction model module calculates reaction tank oxygen demand and dissolved oxygen DO desired value according to the water quality and quantity data, described intelligent conversion module is according to the reaction tank oxygen demand, oxygen consumption rate calculates air demand in the biochemical reaction tank in dissolved oxygen DO desired value and the reaction tank, and described gas transmission pipeline net work gas dynamic models module calculates air valve aperture and the blower pressure data of reaction tank according to air demand;
Step 3, central control system is passed to topworks with air valve aperture and blower pressure data;
Step 4, the folding of actuating mechanism controls air valve.
Further, wherein said step 1 also comprises: described biochemical reaction tank also comprises a settling basin, described settling basin comprises sewage import, sewage outlet, sludge outlet, sludge reflux mouth, described sewage import links to each other with the water side of described reaction tank, described reaction tank also comprises a sludge reflux end, described sludge reflux end links to each other with the sludge reflux mouth of described settling basin, monitor is placed the sludge reflux mouth of settling basin; Described step 2 also comprises: described real-time biochemical reaction model module calculates the sludge reflux amount of settling basin according to the water quality and quantity data; Described step 3 also comprises: central control system is passed to topworks with sludge reflux amount data.
Further, wherein said water quality and quantity data comprise flow, ammonia-nitrogen content, nitrate content data.
Further, wherein also comprise programmable logic controller (PLC) (PLC), described monitor is connected with described central control system by programmable logic controller (PLC).
Further, wherein said real-time biochemical reaction model module, intelligent conversion module and the gas transmission pipeline net work gas dynamic models module object that is connected to be used for process control connects and is connected (OPC) interface and is connected with central control system.
Further, wherein said monitor comprises NH 3 instrument, nitrate monitor and water quantity monitoring instrument.
Further, wherein said real-time biochemical reaction model module comprises the relevant interference amount in simulation mathematical model and the actual moving process.Preferably, wherein said simulation mathematical model is emulation microbial respiratory process, or the processing procedure of emulation organic carbon, or emulation Ammonia Nitrification and denitrification process, or the mathematical model of the reflux course of emulation mud.Preferably, wherein said simulation mathematical model is the activated sludge model (Activated Sludge Models is called for short ASM) of international water association (IWAQ).
Further, wherein said topworks comprises air valve, blower fan and reflux pump.
ASM2D model in the real-time biochemical reaction model module of the present invention in the preferred ASM model system of simulation mathematical model.
Intelligent conversion module of the present invention, that the oxygen demand of the biochemical reaction tank that calculates take real-time biochemical reaction model module and dissolved oxygen DO desired value are as foundation, according to the oxygen consumption rate of biochemical reaction tank mesophytization reaction, the method for employing mathematics his-and-hers watches calculates the control desired value of air demand in the biochemical reaction tank.
Gas transmission pipeline net work gas dynamic models module of the present invention comprises thermofluid system simulation analysis (FLOWMASTER) model of Britain.
Need to prove, also be provided with travel control device on the air valve of topworks of the present invention, blower fan and the reflux pump, be beneficial to control system to the control of topworks.
In preferred embodiments of the present invention, biochemical reaction tank of the present invention comprises reaction tank and settling basin, and monitor is placed water inlet end, pond, the water side of reaction tank, the sludge reflux mouth of settling basin.The water quality and quantity data communication device of monitor collection is crossed programmable logic controller (PLC) (hereinafter to be referred as PLC) be passed to central control system; Comprise real-time biochemical reaction model module, intelligent conversion module and gas transmission pipeline net work gas dynamic models module in the central control system, biochemical reaction model module and intelligent conversion module calculate biochemical reaction tank air demand, dissolved oxygen DO desired value and sludge reflux amount according to the water quality and quantity data in real time, and gas transmission pipeline net work gas dynamic models module calculates air valve aperture and the blower pressure data of reaction tank according to air demand; Central control system is passed to topworks with sludge reflux amount, air valve aperture and blower pressure data; The folding of actuating mechanism controls valve, blower fan and reflux pump.Wherein the biochemical reaction model module comprises the ASM2d model in real time; Gas transmission pipeline net work gas dynamic models module comprises Britain FLOWMASTER model.
The present invention has the following advantages:
1, overcome sewage treatment area biochemical reaction tank air quantity and regulated control with the qualitative shortcoming that is controlled to be master, control poor effect, the control of higher, the extensive property of operation energy consumption;
2, the transformation by control mode has overcome the technological difficulties such as exist in the wastewater treatment control non-linear, large time delay, serious interference.The present invention is for control break " FEEDBACK CONTROL " pattern in the past of key parameter, adopt " feedforward control " control model, comparatively accurately predicted truly the variation tendency of pollutant burden in the biochemical reaction tank, give adequate compensation to the relevant control parameter in advance, avoided guaranteeing the stable and continuous of wastewater treatment adjusting control procedure because of the factors such as pollutant interference, the processing procedure hysteresis adverse effect that control causes to the sewage disposal process continuous service;
3, introduce modelling technique as support and the foundation of control, overcome the blindness that aeration control is regulated in the wastewater treatment, improved the confidence level of automatic control and the evaluation capacity of control effect;
4, realized the real-time Data Transmission of professional mathematical model and control system.The secondary development of this project by special purpose computer mathematical models such as activated sludge models, gas transmission pipeline net work Aerodynamics Model and perfect realized real-time docking the between model and control system, the real-time simulation of implementation model and calculating.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand fully purpose of the present invention, feature and effect.
Description of drawings
Fig. 1 is the structural representation of the biochemical reaction tank control system of a preferred embodiment of the present invention.
Fig. 2 is the information flow synoptic diagram of the biochemical reaction tank control system of a preferred embodiment of the present invention.
Embodiment
As shown in Figure 1, the biochemical reaction tank in the preferred embodiment of the present invention comprises reaction tank 1 and settling basin 2.Monitor 3 comprises NH 3 instrument, nitrate monitor and water quantity monitoring instrument.Topworks comprises air valve 7, blower fan 8 and sludge reflux pump 9.Reaction tank 1 comprises water inlet end, water side and sludge reflux end, and reaction tank 1 links to each other with blower fan 8 with air valve 7.Settling basin 2 comprises water inlet, water delivering orifice, sludge reflux mouth and sludge outlet, and settling basin 2 links to each other with sludge reflux pump 9.The sewage import of settling basin links to each other with the water side of institute's reaction tank, the sludge reflux mouth of settling basin links to each other with the sludge reflux end of reaction tank, and the central control system in the preferred embodiment of the present invention comprises real-time biochemical reaction model module 5, intelligent conversion module 51 and gas transmission pipeline net work gas dynamic models module 6.Central control system links to each other with topworks with monitor by programmable logic controller (PLC) 4.
Preferred embodiment of the present invention places the sludge reflux mouth of water inlet end, pond, water side and the settling basin 2 of reaction tank 1 with monitor 3, to gather the data such as ammonia nitrogen, nitrate, nitrous acid and the water yield in sewage and the phegma.And the water quality and quantity data communication device that gathers is crossed field control programmable logic controller (PLC) 4 transfer to real-time biochemical reaction model module 5 in the central control system.Biochemical reaction model module 5 comprises the relevant interference amount in activated sludge model ASM2d and the actual moving process in real time.The biochemical reaction model module calculates rational reaction tank oxygen demand, dissolved oxygen DO desired value and sludge reflux amount according to the data that transmission comes in real time; The reaction tank oxygen demand that intelligent conversion module 51 in the central control system calculates take real-time biochemical reaction model module 5 and dissolved oxygen DO desired value are as foundation, oxygen consumption rate according to the reaction of reaction tank mesophytization, the method of employing mathematics his-and-hers watches calculates the control desired value of air demand in the reaction tank, and feeds back to central control system by the OPC interface.
The data parameters synchronous driving that central control system calculates real-time biochemical reaction model module and intelligent conversion module is to gas transmission pipeline net work gas dynamic models module 6, this module adopts the gas flow balanced algorithm to calculate the aperture setting value of each air valve in the gas transmission pipeline net work, pipe network house steward's stagnation pressure setting value, the aerodynamic force mathematic(al) parameters such as running status of blower fan, and result of calculation is fed back to central control system by the OPC interface.
The data of the comprehensive in real time biochemical reaction model module of central control system, intelligent conversion module and gas transmission pipeline net work gas dynamic models module feedback, transfer to air valve 7 in the topworks by field programmable logic controller 4, blower fan 8 and reflux pump 9, and driving topworks finishes corresponding actions, the real-time online control of realization aeration tank dissolved oxygen, sludge reflux amount.
The present invention is by the disposition of Real-Time Monitoring sewage, online adjust aeration rate and sludge reflux amount in the reaction tank, avoid excessive aeration when guaranteeing reaction tank biochemical reaction oxygen demand and the mud that too much refluxes cause Sludge Settling Characteristics reduce, to the inhibition of anti-nitration reaction and the adverse consequencess such as waste of operation energy.And real time modelling, followed the tracks of the operating condition of air valve and house steward's blast synchronously, realized that the overall complex optimum of pipe network regulates control.
Also comprise in the preferred embodiment of the present invention sewage is carried out pretreated step, the sewage water inlet successively by inlet well and preliminary sedimentation tank, is beneficial to biochemical reaction tank to the further processing of sewage.Sewage treatment process in the reaction tank adopts modified form anoxic/aerobic (A/O) method group technology.That is: two Chi Qu that in same reaction tank, be arranged in parallel, sewage with 70% is processed by traditional aerobic activated sludge process, other 30% sewage is processed by denitrogenation and aerobic nitration processes, and two bursts of water outlets after the processing are mixed into people's settling basin and carry out mud-water separation and discharge by disinfection by ultraviolet light.Two kinds of techniques share a sludge reflux system.Settling basin adopts rectangular sedimentation tank, the excess sludge that settling basin produces through behind the gravity concentration by the plate and frame filter press dehydration after outward transport.
Using computer model to carry out the real-time online analog computation is of the present invention one large characteristic, change previous calculation machine model by application of the present invention and processed the situation that can only be used for off-line analysis research in the engineering in sewage treatment plant's operation, realized real-time dock of simulation with control.By the visual and digitizing of the Realization of Simulation sewage treatment plant of model operation, further enlarged the range of application of model.Computer model in this preferred embodiment comprises real-time biochemical reaction model and gas transmission pipeline net work gas dynamics model.
The fundamental technology theory of biochemical reaction model construction is that active sludge is theoretical in real time.Active sludge also is the technology theory that extensively adopts in present international and domestic most Designing Sewage Treatment Plants.The 1980's played international water association (IWAQ) and have developed corresponding model standard according to this theoretical technical characterstic, had formed comparatively complete activated sludge model (Actived Sludge Models is called for short ASM) system.This system has developed the model standard of the versions such as ASM1, ASM2, ASM2d and AMS3 at present through nearly 30 years development.The ASM2d model also comprises Biological Phosphorus Removal Process except the courses of reaction such as removal that comprise carbon and nitrogen, increased the courses of reaction such as anaerobic hydrolysis, fermentation and biological phosphate-eliminating, chemical dephosphorization and the growth of polyP bacteria anoxic.It contains 19 kinds of components, 21 kinds of reactions, 22 stoichiometric coefficients and 45 kinetic parameters.The ASM2d model is comparatively perfect in a present activated sludge model system version, can simulate preferably the practical operation situation of reflection sewage treatment plant.
The gas transmission pipeline net work gas dynamics model is selected Britain FLOWMASTER.The world-leading one dimensional flow system of FLOWMASTER platform simulation and calculation instrument, it is engineering-oriented complete fluid system simulation software bag, system has stable unique computational algorithm, finds the solution fast ability, in real time dynamic display capabilities, high-precision simulation result and complete reprocessing rate.Can carry out accurate pressure, flow, flow velocity, temperature analysis to fluid systems such as water/liquid system, oil, gas (air, oxygen, carbon dioxide, hydrogen etc.).The algorithm of system simulation mainly is based on the pressure-flow relation, and it is the basic function of software that system pressure distribution, flow distribution and element flow resistance, flow and flow velocity are calculated accurately.For the fluid system that is made up of multiple elements, the solver of FLOWMASTER utilizes the mode of iterative matrix of coefficients to calculate the node pressure of system, then obtain the flow of trunk and branch according to the flow resistance characteristic of element and the principle of flow conservation, and then obtain the parameters such as flow velocity, Reynolds number, Mach number.FLOWMASTER among the present invention is coupled the equation of momentum, continuity equation and energy equation simultaneously and finds the solution, performance parameter according to element, consider conduction heat exchange, convection heat transfer and the radiation heat transfer of element and fluid media (medium) and environment, also consider simultaneously the impact of dynamic viscosity, specific heat at constant pressure, density and the thermal expansion rates of temperature convection body medium, obtain the Temperature Distribution of fluid system by iterating, and provide the parameters such as actual heat exchange amount, thermal resistance, heat exchange efficiency and Nu-number of element.
The information flow chart of embodiments of the invention as shown in Figure 2, monitor is DO, MLSS, the NH of the influent quality, the water yield and the actual measurement that collect
4-N, NO
3The information exchanges such as-N are crossed on-the-spot PLC and are transferred to central control system; Real-time biochemical reaction model module in the central control system, intelligent conversion module and gas transmission pipeline net work gas dynamics model module finish the setting range of dissolved oxygen DO DO by modeling and the selection of air demand is calculated, and the optimization of the control parameters such as gas transmission pipeline net work running status and pipe network stagnation pressure, control valve opening is calculated; Central control system is finally finished the optimal control of biochemical reaction tank aeration rate according to the aperture that the on-the-spot PLC of the object command of calculating comes each air valve, blower fan and reflux pump in the adjustment actuating mechanism.
Aeration control of the present invention system is divided into 3 control hierarchys, comprises the manual control plane of pusher side, Region control aspect and central control system.Most basic control hierarchy mainly is near the manual control plane of pusher side the controlled plant, comprises monitor and topworks.It is that the pusher side of realizing single device is manually controlled function that the major control of this aspect requires, and is the most basic mechanism of control system, mainly is responsible for the control information that higher level's control hierarchy transmits, and directly drives controlled plant execution steering order, finishes control command.The manual control plane of pusher side has comprised a large amount of monitors and topworks, be responsible for the regulating and controlling instruction and finish the monitoring of situation and the feedback of control effect data, can or remove and realize in the situation about controlling forcing manual control in central control system or higher level's control module control inefficacy simultaneously, be the basis of whole control system;
Between central control system and the manual control plane of pusher side is Region control aspect take PLC as core control equipment.Because sewage treatment plant needs the equipment that relates to more in operational process, and the system relevant with treatment process not only arranged, complementary equipment such as in addition water supply, power supply simultaneously also need to be monitored and control for the ruuning situation of these utility appliance.On the system take conditions such as functions of the equipments, service range and technological processes as principle, divide the part control zone, for same functional areas PLC is set and unifies control and management, PLC is responsible on the one hand according to the instruction issuing of central control system and carries out the instruction that this control area equipment is regulated control, on the one hand as field data pass on hinge with the information conveyance of field monitoring instrument Real-time Collection to central control system.And the analog computation of real-time biochemical reaction model of the present invention also can realize in the aspect of PLC;
What be positioned at the top layer of control system is central control system.Central control system is the core of operation control, and all are electric, the service data of plant equipment all finally is sent to central control system, distribution and preservation that central control system is carried out data according to source and the demand of data.
In an embodiment of the present invention, central control system comprises 4 control workstations, and the equal installation portion of each regulation and control system software is deployed in the above-mentioned control workstation.The division of labor of workstation comprises: a calculating of being responsible for carrying out the accurate aeration amount; The analog computation of a responsible gas transmission pipeline net work Aerodynamics Model; Other establish two each other the supervisory control comuter of Hot Spare be responsible for the realization of other control monitoring functions of sewage treatment plant, comprise the monitoring etc. of the basic hydraulic parameters such as monitoring, flow, water level of equipment running status.2 Control Servers are set in the central control system simultaneously, be responsible for Control System of Sewage Treatment Plant configuration, major control loop, real-time data base and historical data base maintenance and with the real-time data communication of field control equipment room.All computer systems all realize the real-time Transmission of interconnection and information by the 100M optical fiber ring network.
Central control system is given corresponding computation model module by the data-interface OPC data transmission that analog computation is required, and real-time, synchronous driving model carries out analog computation and prediction to current operating condition.For the result of calculation of model, central control system is extracted the partial data formation control strategy relevant with control from model, then be distributed to topworks to finish once complete control cycle.
More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that this area need not creative work and just can design according to the present invention make many modifications and variations.Therefore, all in the art technician all should be in the determined protection domain by claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. real-time method of aeration rate in the control biochemical reaction tank comprises:
Step 1 places monitor water inlet end, pond, the water side of reaction tank;
Step 2, the water quality and quantity data of monitor collection are passed to central control system, comprise real-time biochemical reaction model module in the described central control system, intelligent conversion module and gas transmission pipeline net work gas dynamic models module, described real-time biochemical reaction model module calculates reaction tank oxygen demand and dissolved oxygen DO desired value according to the water quality and quantity data, described intelligent conversion module is according to the reaction tank oxygen demand, oxygen consumption rate calculates air demand in the biochemical reaction tank in dissolved oxygen DO desired value and the reaction tank, and described gas transmission pipeline net work gas dynamic models module calculates air valve aperture and the blower pressure data of reaction tank according to air demand; Described gas transmission pipeline net work gas dynamic models module adopts the gas flow balanced algorithm to calculate the aerodynamic force mathematic(al) parameter of running status of aperture setting value, the pipe network house steward's of each air valve in the gas transmission pipeline net work stagnation pressure setting value, blower fan, and result of calculation is fed back to central control system by the OPC interface;
Step 3, central control system is passed to topworks with air valve aperture and blower pressure data;
Step 4, the folding of actuating mechanism controls valve;
Wherein, described method also comprises carries out pretreated step with sewage, is specially: the sewage water inlet successively by inlet well and preliminary sedimentation tank, is beneficial to biochemical reaction tank to the further processing of sewage; Sewage treatment process in the reaction tank adopts modified form anoxic/aerobic method group technology, that is: two Chi Qu that in same reaction tank, be arranged in parallel, sewage with 70% is processed by traditional aerobic activated sludge process, other 30% sewage is processed by denitrogenation and aerobic nitration processes, and two bursts of water outlets after the processing are mixed into people's settling basin and carry out mud-water separation and discharge by disinfection by ultraviolet light; Two kinds of techniques share a sludge reflux system; Settling basin adopts rectangular sedimentation tank, the excess sludge that settling basin produces through behind the gravity concentration by the plate and frame filter press dehydration after outward transport;
In described method, the aeration control system is divided into 3 control hierarchys, comprises the manual control plane of pusher side, Region control aspect and central control system; Most basic control hierarchy mainly is near the manual control plane of pusher side the controlled plant, comprises monitor and topworks; Between central control system and the manual control plane of pusher side is Region control aspect take PLC as core control equipment; What be positioned at the top layer of control system is central control system.
2. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 1, wherein
Described step 1 also comprises: described biochemical reaction tank also comprises a settling basin, described settling basin comprises sewage import, sewage outlet, sludge outlet, sludge reflux mouth, described sewage import links to each other with the water side of described reaction tank, described reaction tank also comprises a sludge reflux end, described sludge reflux end links to each other with the sludge reflux mouth of described settling basin, monitor is placed the sludge reflux mouth of settling basin;
Described step 2 also comprises: described real-time biochemical reaction model module calculates the sludge reflux amount of settling basin according to the water quality and quantity data;
Described step 3 also comprises: central control system is passed to topworks with sludge reflux amount data.
3. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 1 or 2, wherein said water quality and quantity data comprise flow, ammonia-nitrogen content, nitrate content data.
4. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 1 or 2 wherein also comprises programmable logic controller (PLC), and described monitor is connected with described central control system by programmable logic controller (PLC).
5. the object that the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 1 or 2, wherein said real-time biochemical reaction model module, intelligent conversion module and gas transmission pipeline net work gas dynamic models module are connected to be used for process control connects and is connected interface and is connected with central control system.
6. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 2, wherein said monitor comprises NH 3 instrument, nitrate monitor and water quantity monitoring instrument.
7. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 1 or 2, wherein said real-time biochemical reaction model module comprises the relevant interference amount in simulation mathematical model and the actual moving process.
8. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 7, wherein said simulation mathematical model is emulation microbial respiratory process, or the processing procedure of emulation organic carbon, or emulation Ammonia Nitrification and denitrification process, or the mathematical model of the reflux course of emulation mud.
9. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 8, wherein said simulation mathematical model are the activated sludge model of international water association.
10. the method for aeration rate in the real-time control biochemical reaction tank as claimed in claim 2, wherein said topworks comprises air valve, blower fan and reflux pump.
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