CN112029911A - Anaerobic fermentation control method and system - Google Patents

Anaerobic fermentation control method and system Download PDF

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CN112029911A
CN112029911A CN202010963663.9A CN202010963663A CN112029911A CN 112029911 A CN112029911 A CN 112029911A CN 202010963663 A CN202010963663 A CN 202010963663A CN 112029911 A CN112029911 A CN 112029911A
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current
value
raw material
amount
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陈祎
潘宁
刘钟毓
赵雅姣
赵健
李丽莎
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Huadian Zhongguang New Energy Technology Co ltd
China Huadian Engineering Group Co Ltd
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Abstract

The invention provides a control method and a control system for anaerobic fermentation, wherein the method comprises the following steps: acquiring the type of a fermentation raw material, the current reaction temperature and the current PH value of the current fermentation raw material in a fermentation system; determining a standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value; and adjusting fermentation reaction parameters of the fermentation system according to the current reaction temperature, the current PH value and the standard PH value. Aiming at different fermentation raw materials, the invention controls the pH value of anaerobic fermentation to be kept at the standard pH value by adjusting the fermentation reaction parameters of the fermentation system, maintains the relative stability of the reaction temperature, optimizes the fermentation potential of the whole fermentation system, avoids influencing the fermentation potential due to the influence of drastic changes of temperature and environment on the number of zymophytes, and is beneficial to accurately controlling equipment to be in the standard fermentation environment so as to obtain the standardized gas yield.

Description

Anaerobic fermentation control method and system
Technical Field
The invention relates to the technical field of industrial control, in particular to a control method and a control system for anaerobic fermentation.
Background
With the continuous development of industrial technology, process production control puts higher demands on methods, precision and timeliness, intelligent manufacturing such as flexible production, resource planning, operation management and big data cloud computing is gradually emphasized by people, and especially, the influence of parameters such as the oxygen demand for anaerobic bacteria survival and the biogas preparation requirement in an anaerobic environment, such as the matching relation, temperature, pressure and pH value, on the fermentation gas production rate in the anaerobic reaction process is brought to the attention of people. The traditional control mode hardly meets the control requirement, and the standard fermentation environment of equipment cannot be accurately controlled to obtain the standardized gas production.
Disclosure of Invention
In view of this, the embodiment of the invention provides a control method and a control system for anaerobic fermentation, which solve the problems that the existing control mode is difficult to meet the control requirement, and the standard fermentation environment of equipment cannot be accurately controlled to obtain the standardized gas production.
The embodiment of the invention provides a control method of anaerobic fermentation, which comprises the following steps: acquiring the type of a fermentation raw material, the current reaction temperature and the current PH value of the current fermentation raw material in a fermentation system; determining a standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value; and adjusting the fermentation reaction parameters of the fermentation system according to the relationship among the current reaction temperature, the current PH value and the standard PH value.
Optionally, the fermentation reaction parameters include: feeding amount, discharging amount, feeding frequency, discharging frequency and heating amount.
Optionally, the adjusting the feeding amount and the discharging amount of the fermentation system according to the relationship among the current reaction temperature, the current PH value and the standard PH value includes: determining the decomposition speed of the organic matters of the fermentation system according to the current reaction temperature; determining the current parameter value of the current fermentation raw material according to the decomposition speed of the organic matter; and determining the feeding amount and the discharging amount of the fermentation system according to the current parameter value, the relation between the current PH value and the standard PH value and a preset effective volume.
Optionally, the adjusting the feeding frequency and the discharging frequency of the fermentation system according to the relationship between the current PH value and the standard PH value includes: and determining the feeding frequency and the discharging frequency of the fermentation system according to a preset feeding and discharging principle, the feeding amount, the discharging amount and the relationship between the current PH value and the standard PH value.
Optionally, the adjusting the heating amount of the fermentation system according to the current reaction temperature includes: determining single feeding amount and single discharging amount according to the feeding amount, the discharging amount, the feeding frequency and the discharging frequency; and determining the heating amount of the fermentation system according to the current reaction temperature, the single feeding amount, the single discharging amount and the relation between the preset feeding and discharging amount and the reaction temperature.
Optionally, an embodiment of the present invention provides a control method for anaerobic fermentation, further including: determining a fermentation stage according to the current parameter value of the current fermentation raw material; and determining the oxygen supply amount of the current fermentation raw material according to the fermentation stage and the preset time.
Optionally, the current parameter value includes: volatile solid content, solid content and volatile acid value.
The embodiment of the invention also provides a control system for anaerobic fermentation, which comprises: the first acquisition module is used for acquiring the fermentation raw material type, the current reaction temperature and the current PH value of the current fermentation raw material in the fermentation system; the first processing module is used for determining a standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value; and the second processing module is used for adjusting the fermentation reaction parameters of the fermentation system according to the relationship among the current reaction temperature, the current PH value and the standard PH value.
Embodiments of the present invention also provide a computer-readable storage medium storing computer instructions to execute the method for controlling anaerobic fermentation provided by embodiments of the present invention.
An embodiment of the present invention further provides an electronic device, including: the anaerobic fermentation control system comprises a memory and a processor, wherein the memory and the processor are mutually connected in a communication way, the memory stores computer instructions, and the processor is used for executing the computer instructions to execute the control method of anaerobic fermentation provided by the embodiment of the invention by executing the computer instructions.
The technical scheme of the invention has the following advantages:
the embodiment of the invention provides a control method and a control system for anaerobic fermentation, aiming at different fermentation raw materials, the pH value of the anaerobic fermentation is controlled to be kept at a standard pH value by adjusting fermentation reaction parameters of a fermentation system, the relative stability of reaction temperature is maintained, the fermentation potential of the whole fermentation system is optimized, the whole process of the fermentation tends to be smooth and stable, the impact of the existing control method on the temperature and the pH value of the fermentation system is avoided, the influence on the fermentation potential caused by the severe change of the temperature and the environment on the number of zymophyte is avoided, and the control method is favorable for accurately controlling equipment to be in a standard fermentation environment to obtain the standardized gas production.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a method for controlling anaerobic fermentation in an embodiment of the present invention;
FIG. 2 is a schematic view of a fermentation system in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a simulation system in an embodiment of the invention;
FIG. 4 is a block diagram showing the functional blocks of a control system for anaerobic fermentation according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic device in an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention provides a control method of anaerobic fermentation, as shown in fig. 1, the method specifically comprises the following steps:
step S1: and acquiring the type of the fermentation raw material, the current reaction temperature and the current PH value of the current fermentation raw material in the fermentation system.
In the embodiment of the invention, firstly, the type of the fermentation raw material of the current fermentation raw material in the fermentation system is obtained, different parameter values are determined according to different types of the fermentation raw material, wherein the parameter values comprise VS (volatile solid content), TS (solid content) and VFA (volatile acid) of the fermentation raw material, the current reaction temperature and the current pH value of the current fermentation raw material in the fermentation system are obtained through a pH value probe 6 and a temperature probe 7 in the fermentation system shown in figure 2, wherein the fermentation system can also refer to a single anaerobic reaction tank, the fermentation system also comprises an anaerobic reaction tank 1, a feed pump 2, a discharge pump 3, a heater 4, a trace oxygen supply instrument 5(02 instrument) and a methane concentration probe 8(CH 4-), the content of the fermentation raw material in the anaerobic reaction tank 1 is controlled through the feed pump 2 and the discharge pump 3, and as one fermentation raw material is fed in one step, the temperature of the fermentation system is changed, and then the reaction temperature in the anaerobic reaction tank 1 is heated by the heater 4, so that the reaction temperature in the anaerobic reaction tank 1 is kept stable as much as possible, the biogas concentration (gas production) in the anaerobic reaction tank 1 is measured by the biogas concentration probe 8, and oxygen is supplied to the anaerobic reaction tank 1 at regular time and quantity by the infinitesimal oxygen supply instrument 5.
It should be noted that the embodiment of the present invention is only described by taking the above-mentioned fermentation system as an example, and other types of fermentation systems can be selected for fermentation in practical applications.
Step S2: and determining the standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value.
In the embodiment of the invention, after the type of the fermentation raw material is determined, VS (volatile solid content), TS (solid content), VFA (volatile acid) of the current fermentation raw material can be input into the simulation system, the simulation system performs operation and simulation according to the input information, and a matching curve of the fermentation raw material and the anaerobic fermentation PH value is obtained through simulation, wherein the matching curve is a relation between each different fermentation raw material and a corresponding standard (optimal) PH value, for example, when the fermentation raw material is pig manure, the corresponding standard PH value is 6, and when the fermentation raw material is cow manure, the corresponding standard PH value may be 7.
It should be noted that, in the embodiment of the present invention, the fermentation raw material is exemplified to include pig manure and cow manure, and may include other types, and the standard PH value corresponding to the fermentation raw material is also obtained according to actual experimental measurement and experience, and for areas with different climatic temperatures, the standard PH value for possible fermentation is also different, and the above-mentioned matching curve is also a relative data, and may be adjusted according to actual environmental changes, and the present invention is not limited thereto.
Step S3: and adjusting fermentation reaction parameters of the fermentation system according to the current reaction temperature, the current PH value and the standard PH value.
In the embodiment of the invention, the temperature is one of the important conditions for normal fermentation of the fermentation raw materials, and the temperature of the fermentation raw materials is controlled to keep the stack body at a proper temperature so as to ensure the decomposition speed of organic matters. The initial current reaction temperature of the fermentation system is a temperature suitable for fermentation, the growth of different types of microorganisms has different requirements on the temperature, for example, the optimal temperature of mesophilic bacteria is 30-40 ℃, the optimal temperature of thermophilic bacteria is 45-60 ℃, the temperature of high-temperature compost is preferably controlled to be 55-65 ℃, the temperature is not suitable to exceed 65 ℃, and the growth of the microorganisms can be inhibited when the temperature exceeds 65 ℃. In practical application, the relationship between the current pH value and the standard (optimal) pH value of the current fermentation raw material fermentation obtained by the simulation calculation is calculated, and the fermentation reaction parameters of the fermentation system are adjusted by using the relationship and the current reaction temperature so as to keep the whole fermentation system in a flat and flexible environment and further obtain the maximum gas yield as far as possible, wherein the fermentation reaction parameters comprise: feeding amount, discharging amount, feeding frequency, discharging frequency and heating amount.
According to the control method for anaerobic fermentation, provided by the invention, aiming at different fermentation raw materials, the pH value of anaerobic fermentation is controlled to be kept at the standard pH value by adjusting the fermentation reaction parameters of the fermentation system, the relative stability of the reaction temperature is maintained, the fermentation potential of the whole fermentation system is optimized, the whole process of fermentation tends to be smooth and stable, the impact of the existing control method on the temperature and the pH value of the fermentation system is avoided, and the influence on the fermentation potential caused by the influence of the number of zymophytes due to the drastic change of the temperature and the environment is avoided.
In one embodiment, the method for adjusting the feeding amount and the discharging amount of the fermentation system according to the relationship among the current reaction temperature, the current pH value and the standard pH value comprises the following steps:
step S031: and determining the organic matter decomposition speed of the fermentation system according to the current reaction temperature.
In the embodiment of the invention, the decomposition speed of organic matters is directly influenced by the temperature of the anaerobic fermentation environment, the propagation speed of zymophyte is also influenced, the decomposition speed of the organic matters in the fermentation raw materials can be calculated by collecting the value of a temperature probe 7 in a fermentation system, substances such as acetic acid, alcohol, carbon dioxide, ammonia gas, hydrogen sulfide, hydrogen and the like can be generated after the organic matters are decomposed, and the acetic acid can be decomposed into methane and the like under the action of the zymophyte. The organic matter decomposition rate calculated from the temperature is calculated using the existing data, and the result varies depending on the environment and the fermentation raw material, and the present invention is not limited thereto.
Step S032: and determining the current parameter value of the current fermentation raw material according to the decomposition speed of the organic matters.
In the embodiment of the invention, with the continuous reaction of the fermentation raw material, the concentrations of VS (volatile solid content), TS (solid content) and VFA (volatile acid) in the fermentation raw material are gradually reduced with the progress of fermentation, and meanwhile, after the organic matter is decomposed in the fermentation process, the acidic matter is decomposed again to accumulate the alkaline matter, which can cause the pH value of the whole fermentation system to rise, so that the current parameter values after the current fermentation raw material is reacted can be determined according to the decomposition speed of the organic matter, wherein the current parameter values comprise: volatile solid content, solid content and volatile acid value.
Step S033: and determining the feeding amount and the discharging amount of the fermentation system according to the current parameter value, the relation between the current PH value and the standard PH value and the preset effective volume.
In the embodiment of the invention, the material with high PH value can be discharged through discharging, and the fresh raw material with low PH value can be injected into the fermentation system through the feeding with the same volume, so as to achieve the aim of maintaining the PH value of the whole fermentation system to be stable, and the standard PH value is 3000m3And determining the feeding amount and the discharging amount of the fermentation system by taking the anaerobic reaction tank with the effective volume as a reference according to the current parameter value, the relation between the current PH value and the standard PH value and the preset effective volume. It should be noted that, the embodiment of the present invention only illustrates that the preset effective volume of the anaerobic reaction tank in the fermentation system is 3000m3In practical applicationCan be selected according to the system requirements, and the invention is not limited thereto.
In one embodiment, adjusting the feeding frequency and the discharging frequency of the fermentation system according to the relationship between the current pH value and the standard pH value comprises the following steps:
step S131: and determining the feeding frequency and the discharging frequency of the fermentation system according to the preset feeding and discharging principle, the feeding amount, the discharging amount and the relationship between the current PH value and the standard PH value.
In the embodiment of the invention, based on a small quantity of frequent feeding and discharging principles, various factors are balanced according to the relation between the feeding amount, the discharging amount and the current PH value and the standard PH value, the temperature change is reduced to the maximum extent on the premise that the PH value is not obviously changed, and the relatively optimal feeding frequency and discharging frequency are calculated by combining the flow rates of the feeding pump 2 and the discharging pump 3.
In one embodiment, adjusting the heating amount of the fermentation system according to the current reaction temperature comprises the following steps:
step S231: and determining the single feeding amount and the single discharging amount according to the feeding amount, the discharging amount, the feeding frequency and the discharging frequency.
Step S232: and determining the heating quantity of the fermentation system according to the current reaction temperature, the single feeding quantity, the single discharging quantity and the relation between the preset feeding and discharging quantity and the reaction temperature.
In the embodiment of the invention, the temperature of the fermentation system changes as the raw materials enter and exit one by one, meanwhile, the pH value of the whole fermentation system rises as acetic acid decomposes, the single discharge amount of the discharge pump 3 and the single feed amount of the feed pump 2 in the fermentation system are adjusted in time by the simulation system according to the current pH value acquired by the pH probe 6 so as to maintain the pH value of the whole fermentation system to be stable, the heating amount of the fermentation system is obtained according to the relation between the pre-simulation calculated feed and discharge amount and the reaction temperature on the premise of ensuring the minimum change of the current reaction temperature according to the acquired current reaction temperature, the heating amount of the fermentation system is heated by the heater 4, and the temperature of the system is kept in a stable state after the calculated heating amount is heated. The simulation system shown in fig. 3 calculates the feeding frequency, the feeding and discharging amount, the discharging frequency, the discharging amount and the heating amount, the data are transmitted to the fermentation system through data communication packaging protocols of the simulation system and the fermentation system, the fermentation system decomposes the data packet according to the packaging protocols, and the decomposed data are used for controlling a feeding pump, a discharging pump and a heater of the fermentation system.
In a specific embodiment, the method for controlling anaerobic fermentation provided by the present invention further comprises the following steps:
step S4: and determining the fermentation stage according to the current parameter value of the current fermentation raw material.
According to the embodiment of the invention, the fermentation stages corresponding to different parameter values of different fermentation raw materials are determined through simulation calculation of a simulation system according to a large amount of experimental data, and the fermentation stages are determined according to the current parameter values of the current fermentation raw materials.
Step S5: and determining the oxygen supply amount of the current fermentation raw material according to the fermentation stage and the preset time.
In the embodiment of the invention, the survival and propagation of the zymophyte need to be carried out in a trace oxygen environment, which does not conflict with the large environment being an anaerobic environment, and oxygen is provided for the fermentation system at regular time and quantity through the trace oxygen supply instrument 5 according to different fermentation stages so as to ensure the normal operation of the fermentation reaction.
According to the control method for anaerobic fermentation, provided by the invention, after the current fermentation raw material is determined, the pH value of anaerobic fermentation is controlled to be kept at the standard pH value by adjusting the fermentation reaction parameters of the fermentation system aiming at different fermentation raw materials, the relative stability of the reaction temperature is maintained, the fermentation potential of the whole fermentation system is optimized, the whole process of fermentation tends to be smooth and stable, the impact of the existing control method on the temperature and the pH value of the fermentation system is avoided, the influence on the fermentation potential caused by the severe change of the temperature and the environment on the number of zymophyte is avoided, and the control method is beneficial to accurately controlling equipment to be in the standard fermentation environment to obtain the standardized gas production rate; the oxygen is provided for the system in a fixed time and a fixed quantity, the condition that the existence and the propagation of the zymophyte are provided in a large anaerobic environment need to be in a trace amount is ensured, and the normal operation of fermentation is ensured.
An embodiment of the present invention further provides a control system for anaerobic fermentation, as shown in fig. 4, including:
the first obtaining module 01 is used for obtaining the fermentation raw material type, the current reaction temperature and the current PH value of the current fermentation raw material in the fermentation system. For details, reference is made to the description relating to step S1 in the above method embodiment.
The first processing module 02 is configured to determine a standard PH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the PH value of anaerobic fermentation. For details, reference is made to the description relating to step S2 in the above method embodiment.
And the second processing module 03 is configured to adjust fermentation reaction parameters of the fermentation system according to the current reaction temperature, the relationship between the current PH value and the standard PH value. For details, reference is made to the description relating to step S3 in the above method embodiment.
Through the cooperative cooperation of the components, the anaerobic fermentation control system provided by the embodiment of the invention controls the pH value of anaerobic fermentation to be kept at the standard pH value by adjusting the fermentation reaction parameters of the fermentation system aiming at different fermentation raw materials, maintains the relative stability of the reaction temperature, optimizes the fermentation potential of the whole fermentation system, ensures the whole fermentation process to be peaceful and stable, avoids the impact of the existing control method on the temperature and the pH value of the fermentation system, avoids the influence on the fermentation potential due to the severe change of the temperature and the environment on the number of zymophyte, and is beneficial to accurately controlling equipment to be in the standard fermentation environment to obtain the standardized gas production rate; the oxygen is provided for the system in a fixed time and a fixed quantity, the condition that the existence and the propagation of the zymophyte are provided in a large anaerobic environment need to be in a trace amount is ensured, and the normal operation of fermentation is ensured.
An embodiment of the present invention further provides an electronic device, as shown in fig. 5, the electronic device may include a processor 901 and a memory 902, where the processor 901 and the memory 902 may be connected by a bus or in another manner, and fig. 5 takes the connection by the bus as an example.
Processor 901 may be a Central Processing Unit (CPU). The Processor 901 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, or combinations thereof.
The memory 902, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present invention. The processor 901 executes various functional applications and data processing of the processor, i.e., implements the above-described method, by executing non-transitory software programs, instructions, and modules stored in the memory 902.
The memory 902 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 901, and the like. Further, the memory 902 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 902 may optionally include memory located remotely from the processor 901, which may be connected to the processor 901 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 902, which when executed by the processor 901 performs the methods described above.
The specific details of the electronic device may be understood by referring to the corresponding related descriptions and effects in the above method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, and the program can be stored in a computer readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.

Claims (10)

1. A method for controlling anaerobic fermentation, comprising:
acquiring the type of a fermentation raw material, the current reaction temperature and the current PH value of the current fermentation raw material in a fermentation system;
determining a standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value;
and adjusting the fermentation reaction parameters of the fermentation system according to the relationship among the current reaction temperature, the current PH value and the standard PH value.
2. The method of claim 1, wherein the fermentation reaction parameters comprise: feeding amount, discharging amount, feeding frequency, discharging frequency and heating amount.
3. The method for controlling anaerobic fermentation according to claim 2, wherein said adjusting the feeding amount and the discharging amount of the fermentation system according to the relationship among the current reaction temperature, the current pH value and the standard pH value comprises:
determining the decomposition speed of the organic matters of the fermentation system according to the current reaction temperature;
determining the current parameter value of the current fermentation raw material according to the decomposition speed of the organic matter;
and determining the feeding amount and the discharging amount of the fermentation system according to the current parameter value, the relation between the current PH value and the standard PH value and a preset effective volume.
4. The method for controlling anaerobic fermentation according to claim 3, wherein said adjusting the feeding frequency and the discharging frequency of the fermentation system according to the relationship between the current pH and the standard pH comprises: and determining the feeding frequency and the discharging frequency of the fermentation system according to a preset feeding and discharging principle, the feeding amount, the discharging amount and the relationship between the current PH value and the standard PH value.
5. The method for controlling anaerobic fermentation according to claim 4, wherein said adjusting the heating amount of the fermentation system according to the current reaction temperature comprises:
determining single feeding amount and single discharging amount according to the feeding amount, the discharging amount, the feeding frequency and the discharging frequency;
and determining the heating amount of the fermentation system according to the current reaction temperature, the single feeding amount, the single discharging amount and the relation between the preset feeding and discharging amount and the reaction temperature.
6. The method of controlling anaerobic fermentation according to claim 3, further comprising:
determining a fermentation stage according to the current parameter value of the current fermentation raw material;
and determining the oxygen supply amount of the current fermentation raw material according to the fermentation stage and the preset time.
7. The method of claim 3, wherein the current parameter values include: volatile solid content, solid content and volatile acid value.
8. A control system for anaerobic fermentation, comprising:
the first acquisition module is used for acquiring the fermentation raw material type, the current reaction temperature and the current PH value of the current fermentation raw material in the fermentation system;
the first processing module is used for determining a standard pH value corresponding to the current fermentation raw material according to the type of the fermentation raw material and a preset matching curve of the fermentation raw material and the anaerobic fermentation pH value;
and the second processing module is used for adjusting the fermentation reaction parameters of the fermentation system according to the relationship among the current reaction temperature, the current PH value and the standard PH value.
9. A computer-readable storage medium storing computer instructions which, when executed by a processor, implement a method of controlling anaerobic fermentation according to any one of claims 1-7.
10. An electronic device, comprising:
a memory and a processor, the memory and the processor being communicatively connected to each other, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the method of controlling anaerobic fermentation according to any one of claims 1 to 7.
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