Ammonia-containing wastewater exhaust gas treatment system and collaborative control method thereof
By dynamically adjusting the flow rates of ammonia-containing wastewater, stripping steam, and purchased ammonia water, the problem of load mismatch between ammonia-containing wastewater stripping and flue gas denitrification in the integrated wind-solar-storage-chemical project was solved, achieving stable system operation and efficient denitrification.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA TIANYING
- Filing Date
- 2026-04-10
- Publication Date
- 2026-06-09
AI Technical Summary
In integrated wind, solar, energy storage and chemical projects, the mismatch between the load regulation rate of ammonia-containing wastewater stripping and flue gas denitrification processes leads to system malfunctions, resulting in ammonia escape, resource waste, or substandard denitrification efficiency.
By obtaining multiple correlation coefficients and correction coefficients, the flow rate and concentration are calculated and optimized, and the flow rates of ammonia-containing wastewater, stripping steam, and purchased ammonia water are dynamically adjusted to achieve coordinated control of the ammonia-containing wastewater stripping and flue gas denitrification processes, ensuring that the concentration of concentrated ammonia water matches the denitrification requirements.
The system achieves coordinated operation of ammonia-containing wastewater stripping and flue gas denitrification processes, reduces excessive steam consumption, and improves system stability and environmental emission performance.
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Figure CN122166861A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of ammonia-containing wastewater and waste gas treatment technology, and in particular to an ammonia-containing wastewater and waste gas treatment system and its coordinated control method. Background Technology
[0002] The integration of wind, solar, energy storage and chemical industries is the core development direction of the new energy chemical industry. Such projects use water electrolysis to produce hydrogen as the core hydrogen source and carbon dioxide from biomass combustion as the carbon source. Through the catalytic synthesis reaction of hydrogen and carbon sources in the methanation unit, green methane is produced on a large scale.
[0003] During the catalytic synthesis process involving hydrogen and carbon sources, side reactions occur, including a trace reaction between nitrogen and hydrogen to produce ammonia. This ammonia dissolves into the process water generated during the synthesis, ultimately forming a large amount of high-concentration ammonia-containing wastewater. Direct discharge of this ammonia-containing wastewater from the catalytic reaction can lead to eutrophication of water bodies and disrupt the ecological balance. Currently, ammonia-containing wastewater is typically treated using a stripping tower. The wastewater enters from the top of the stripping tower and comes into full contact with the rising saturated steam inside. Ammonia nitrogen is desorbed and carried away by the steam, and the ammonia-containing steam is then condensed and treated before being sent to a concentrated ammonia tank for storage.
[0004] During biomass combustion, nitrogen in the air is easily converted into nitrogen oxides. Direct emission of nitrogen oxides exacerbates air pollution, contributes to acid rain formation, and disrupts the pH balance of soil and water bodies. To treat ammonia-containing waste gas generated during biomass combustion, selective non-catalytic reduction (SNR) or selective catalytic reduction (SCR) processes are typically used for flue gas denitrification. In the SNR process, ammonia water is atomized and sprayed into the boiler furnace at a suitable temperature range of 850-1100℃, where the ammonia water decomposes... and in the smoke Reaction generation and When deep denitrification of flue gas is required, a selective catalytic reduction (SCR) process is used. Ammonia water is first converted into ammonia gas, which is then introduced into a reactor containing a catalyst and reacted with the ammonia gas at 300-400°C. Highly efficient response.
[0005] To achieve energy conservation, emission reduction, and low-carbon development across the entire plant, the steam used for stripping ammonia-containing wastewater and the flue gas denitrification process are taken from the low-pressure steam extracted during the turbine power generation process in the biomass power plant. The ammonia water used for denitrification mainly comes from the concentrated ammonia water recovered during stripping. However, due to the inherent intermittency and volatility of green electricity such as wind and solar power, the methanation unit is difficult to operate stably for extended periods. This necessitates that the biomass power plant adjust its operating parameters synchronously with the load of the methanation unit. However, the mismatch in load adjustment rates between the two systems, and the inherent lag in system regulation, can easily lead to operational imbalances in the ammonia-containing wastewater stripping and flue gas denitrification processes, resulting in a mismatch between the concentration of the concentrated ammonia water recovered from stripping and the denitrification requirements. When the concentration of the recovered concentrated ammonia water is too high, ammonia escape is likely, leading to secondary pollution and resource waste; when the concentration is too low, the denitrification efficiency is substandard, failing to meet environmental emission requirements. Summary of the Invention
[0006] To coordinate the operation of ammonia-containing wastewater stripping and flue gas denitrification processes, this application provides an ammonia-containing wastewater and exhaust gas treatment system and its coordinated control method.
[0007] The collaborative control method for an ammonia-containing wastewater and waste gas treatment system provided in this application adopts the following technical solution: A collaborative control method for an ammonia-containing wastewater and exhaust gas treatment system includes the following steps: Step S1: Obtain the first correlation coefficient Obtain the second correlation coefficient Obtain the third correlation coefficient Obtain the green electricity fluctuation correction coefficient. ; Obtain the denitrification ammonia nitrogen molar ratio Obtain the actual operating load of the methanation unit. ; Obtain the nitrogen concentration in the methanation feed gas ; Obtain the yield of ammonia from the side reaction Obtain the flue gas flow rate of a biomass power plant. ; Obtaining from flue gas concentration Obtain the initial ammonia nitrogen concentration of ammonia-containing wastewater. Obtain the stripping steam utilization rate ; obtain molar mass ; obtain average molar mass Obtain the concentration of purchased ammonia water. ; Step S2: Calculate the optimal feed flow rate for stripping ammonia-containing wastewater. ; Calculate the optimal consumption flow rate of stripping steam Optimize the concentration of denitrified concentrated ammonia water ; Step S3: Calculate the optimal replenishment flow rate of purchased ammonia. ; Step S4: Control the ammonia-containing wastewater inlet valve; control the stripping steam inlet valve; control the purchased ammonia water valve; Step S5: Proceed to step S1.
[0008] Preferably, in step S2, the optimized feed flow rate of the stripping ammonia-containing wastewater is calculated based on the linkage formula between methanation load and ammonia-containing wastewater feed flow rate. The relationship between the methanation load and the ammonia-containing wastewater feed flow rate is expressed as follows: .
[0009] Preferably, in step S2, the optimal stripping steam consumption flow rate is calculated based on the linkage relationship between biomass power plant flue gas parameters and stripping steam consumption, and the coupling relationship between concentrated ammonia concentration and stripping steam consumption. Optimize the concentration of denitrified concentrated ammonia water The correlation formula between the flue gas parameters of the biomass power plant and the stripping steam consumption is as follows: The coupling relationship between the concentration of concentrated ammonia and the consumption of stripping steam is as follows: .
[0010] Preferably, in step S3, the optimized replenishment flow rate of the purchased ammonia water is calculated based on the coupling relationship between the concentrated ammonia water supply and the purchased ammonia water for denitrification. The coupling relationship between the concentrated ammonia water supply and the externally purchased ammonia water for denitrification is as follows: .
[0011] Preferably, step S4 includes the following steps: controlling the ammonia-containing wastewater inlet valve so that the actual flow rate of the stripping ammonia-containing wastewater feed is similar to the optimized flow rate of the stripping ammonia-containing wastewater feed. Consistent.
[0012] Preferably, step S4 further includes the following step: controlling the stripping steam inlet valve so that the actual input flow rate of stripping steam is consistent with the optimized consumption flow rate of stripping steam. Consistent.
[0013] Preferably, step S4 further includes the following step: controlling the purchased ammonia water valve so that the actual replenishment flow rate of the purchased ammonia water is different from the optimized replenishment flow rate of the purchased ammonia water. Consistent.
[0014] The ammonia-containing wastewater and waste gas treatment system provided in this application adopts the following technical solution: A system for treating ammonia-containing wastewater and exhaust gas includes a stripping tower. An ammonia-containing wastewater inlet pipe, a stripping steam inlet pipe, and a concentrated ammonia outlet pipe are connected to the stripping tower. An ammonia-containing wastewater storage tank is connected to the end of the ammonia-containing wastewater inlet pipe away from the stripping tower. An ammonia-containing wastewater inlet valve is installed on the ammonia-containing wastewater inlet pipe. A stripping steam inlet valve is installed on the stripping steam inlet pipe. A concentrated ammonia outlet pipe is connected to the end of the concentrated ammonia outlet pipe away from the stripping tower. A purchased ammonia water pipe and a denitrified ammonia water outlet pipe are connected to the concentrated ammonia water tank. A purchased ammonia water valve is installed on the purchased ammonia water pipe.
[0015] By adopting the above technical solution, the ammonia-containing wastewater generated by the methanation unit is discharged into an ammonia-containing wastewater storage tank, reducing the fluctuation of the ammonia-containing wastewater. The ammonia-containing wastewater in the storage tank is injected into the stripping tower from the top of the stripping tower through the ammonia-containing wastewater inlet pipe. The 0.5MPaG-1.0MPaG saturated steam extracted during the power generation process of the biomass power plant turbine is injected into the stripping tower through the stripping steam inlet pipe. The ammonia-containing wastewater comes into contact with the rising saturated steam in the stripping tower, and the ammonia nitrogen in the ammonia-containing wastewater is desorbed and carried away by the steam. The ammonia-containing steam in the stripping tower... After condensation and other treatments, the concentrated ammonia is sent to a concentrated ammonia tank for storage via a concentrated ammonia water outlet pipe. The concentrated ammonia water in the tank serves as a reducing agent for flue gas denitrification in biomass power plants, and is output through a denitrification ammonia water outlet pipe, achieving the denitrification effect of the biomass power plant flue gas. During the stripping of ammonia-containing wastewater and flue gas denitrification process, the optimized feed flow rate of ammonia-containing wastewater to the stripping tower is calculated based on the load of the methanation unit. The actual feed flow rate of the stripped ammonia-containing wastewater is made consistent with the optimized feed flow rate by controlling the ammonia-containing wastewater inlet valve. This is based on the flue gas parameters of the biomass power plant and... The optimal consumption flow rate of stripping steam and the optimal concentration of denitrification concentrated ammonia water are calculated. By controlling the stripping steam inlet valve, the actual input flow rate of stripping steam is made consistent with the optimal consumption flow rate of stripping steam. Based on the optimal consumption flow rate of stripping steam and the optimal concentration of denitrification concentrated ammonia water, the optimal replenishment flow rate of purchased ammonia water is calculated. By controlling the purchased ammonia water valve, the actual replenishment flow rate of purchased ammonia water is made consistent with the optimal replenishment flow rate of purchased ammonia water. The purchased ammonia water from the biomass power plant is injected into the concentrated ammonia water tank through the purchased ammonia water pipe. The ammonia water concentration in the concentrated ammonia water tank is adjusted according to the denitrification requirements of the biomass power plant flue gas, so as to achieve a matching effect between the concentrated ammonia water concentration and the denitrification requirements. This allows the ammonia-containing wastewater stripping process and the flue gas denitrification process to operate in a coordinated manner under the influence of green power fluctuations.
[0016] In summary, this application includes at least one of the following beneficial technical effects: 1. In the process of stripping ammonia-containing wastewater and denitrifying flue gas, the actual flow rate of ammonia-containing wastewater feed into the stripping tower, the actual input flow rate of stripping steam into the stripping tower, and the concentration of ammonia in the concentrated ammonia tank are all adjusted synchronously with the fluctuation of green electricity, so that the concentration of concentrated ammonia matches the demand for flue gas denitrification, while reducing the problem of excessive steam consumption, and achieving the effect of coordinated operation of the ammonia-containing wastewater stripping stage and the flue gas denitrification stage under the influence of green electricity fluctuations; 2. Calculate the optimal flow rate of ammonia-containing wastewater feed to the stripping tower based on the load of the methanation unit. By controlling the ammonia-containing wastewater inlet valve, the actual flow rate of ammonia-containing wastewater feed to the stripping tower is made consistent with the optimal flow rate, so that the actual flow rate of ammonia-containing wastewater feed to the stripping tower is adjusted synchronously with the fluctuation of green electricity. 3. Based on the flue gas parameters of biomass power plants and The optimal consumption flow rate of stripping steam and the optimal concentration of denitrification concentrated ammonia water are calculated. Based on the optimal consumption flow rate of stripping steam and the optimal concentration of denitrification concentrated ammonia water, the optimal replenishment flow rate of purchased ammonia water is calculated. By controlling the stripping steam inlet valve, the actual input flow rate of stripping steam is made consistent with the optimal consumption flow rate of stripping steam. By controlling the purchased ammonia water valve, the actual replenishment flow rate of purchased ammonia water is made consistent with the optimal replenishment flow rate of purchased ammonia water. This ensures that the actual input flow rate of stripping steam in the stripping tower and the ammonia water concentration in the concentrated ammonia water tank are adjusted synchronously with the fluctuations in green electricity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of an ammonia-containing wastewater and waste gas treatment system in an embodiment of this application.
[0018] Figure 2 This is a flowchart of a collaborative control method for an ammonia-containing wastewater and exhaust gas treatment system in an embodiment of this application.
[0019] Explanation of reference numerals in the attached diagram: 1. Stripping tower; 2. Ammonia-containing wastewater inlet pipe; 21. Ammonia-containing wastewater inlet valve; 22. Ammonia-containing wastewater storage tank; 3. Stripping steam inlet pipe; 31. Stripping steam inlet valve; 4. Concentrated ammonia water outlet pipe; 5. Concentrated ammonia water tank; 51. Denitrified ammonia water outlet pipe; 6. Purchased ammonia water pipe; 61. Purchased ammonia water valve. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0021] This application discloses an ammonia-containing wastewater and waste gas treatment system. (Refer to...) Figure 1 and Figure 2The system includes a stripping tower 1, with an ammonia-containing wastewater inlet pipe 2, a stripping steam inlet pipe 3, and a concentrated ammonia water outlet pipe 4 connected to the stripping tower 1. An ammonia-containing wastewater storage tank 22 is connected to the end of the ammonia-containing wastewater inlet pipe 2 furthest from the stripping tower 1. Ammonia-containing wastewater generated by the methanation unit is discharged into the ammonia-containing wastewater storage tank 22 to reduce fluctuations in ammonia-containing wastewater levels. An ammonia-containing wastewater inlet valve 21 is installed on the ammonia-containing wastewater inlet pipe 2, regulating the flow rate of ammonia-containing wastewater within the pipe. The ammonia-containing wastewater in the storage tank 22 is injected into the stripping tower 1 from the top through the inlet pipe 2. A stripping steam inlet valve 31 is installed on the stripping steam inlet pipe 3, regulating the flow rate of steam within it. Saturated steam (0.5~1.0 MPaG) extracted during the power generation process of the biomass power plant turbine is injected into the stripping tower 1 through the stripping steam inlet pipe 3. A concentrated ammonia water outlet pipe 4 is connected to a concentrated ammonia water tank 5 at the end furthest from the stripping tower 1. A purchased ammonia water pipe 6 and a denitrification ammonia water outlet pipe 51 are connected to the concentrated ammonia water tank 5. A purchased ammonia water valve 61 is installed on the purchased ammonia water pipe 6, which regulates the flow rate of purchased ammonia water inside and outside the purchased ammonia water pipe 6, allowing the purchased ammonia water from the biomass power plant to be injected into the concentrated ammonia water tank 5 through the purchased ammonia water pipe 6.
[0022] During the stripping process of ammonia-containing wastewater, the ammonia-containing wastewater comes into contact with the rising saturated steam in stripping tower 1. The ammonia nitrogen in the ammonia-containing wastewater is desorbed and carried out by the steam. The ammonia-containing steam in stripping tower 1 is then treated by condensation and other processes and sent to the concentrated ammonia water tank 5 for storage through the concentrated ammonia water outlet pipe 4.
[0023] In the flue gas denitrification process of a biomass power plant, concentrated ammonia water in tank 5 is used as a reducing agent for flue gas denitrification and is output through denitrification ammonia water outlet pipe 51. When the flue gas denitrification adopts a selective non-catalytic reduction process, the concentrated ammonia water in tank 5 is atomized and sprayed into the boiler furnace at a suitable temperature zone of 850-1100℃, where the ammonia water decomposes... and in the smoke Reaction generation and When deep denitrification of flue gas is required, a selective catalytic reduction (SCR) process is used. The concentrated ammonia in tank 5 is first converted into ammonia gas, which is then introduced into a reactor containing a catalyst and reacted with the ammonia at 300-400°C. Highly efficient response.
[0024] To ensure coordinated operation of the ammonia-containing wastewater stripping and flue gas denitrification processes under the influence of green electricity fluctuations, the actual flow rate of ammonia-containing wastewater feed into stripping tower 1, the actual input flow rate of stripping steam into stripping tower 1, and the ammonia concentration in concentrated ammonia tank 5 are all adjusted synchronously with the green electricity fluctuations during the ammonia-containing wastewater stripping and flue gas denitrification processes. This ensures that the concentrated ammonia concentration matches the flue gas denitrification requirements, while reducing excessive steam consumption, thus achieving coordinated operation of the ammonia-containing wastewater stripping and flue gas denitrification processes under the influence of green electricity fluctuations.
[0025] In order to synchronize the actual flow rate of the ammonia-containing wastewater feed to stripping tower 1 with the fluctuations of green electricity, the optimized flow rate of the ammonia-containing wastewater feed to stripping tower 1 is calculated based on the load of the methanation unit during the ammonia-containing wastewater stripping process. By controlling the ammonia-containing wastewater inlet valve 21, the actual flow rate of the stripped ammonia-containing wastewater feed is made consistent with the optimized flow rate of the stripped ammonia-containing wastewater feed.
[0026] To ensure that the actual input flow rate of stripping steam in stripping tower 1 and the ammonia concentration in concentrated ammonia tank 5 are adjusted synchronously with the fluctuations in green power generation, during the stripping of ammonia-containing wastewater and the denitrification of flue gas, the parameters of the biomass power plant flue gas are first adjusted according to the parameters of the biomass power plant flue gas. The optimal consumption flow rate of stripping steam and the optimal concentration of denitrification concentrated ammonia water are calculated. Then, based on these, the optimal replenishment flow rate of purchased ammonia water is calculated. Subsequently, the actual input flow rate of stripping steam is matched with the optimal consumption flow rate by controlling the stripping steam inlet valve 31, and the actual replenishment flow rate of purchased ammonia water is matched with the optimal replenishment flow rate by controlling the purchased ammonia water valve 61. The stripping steam pressure is dynamically adjusted to optimize the residence time of ammonia-containing wastewater, thereby achieving the effect of concentrated ammonia water concentration regulation.
[0027] This application discloses a collaborative control method for an ammonia-containing wastewater and waste gas treatment system. (Refer to...) Figure 1 and Figure 2 This includes the following steps.
[0028] Step S1: Obtain data, including the following steps.
[0029] Obtain the first correlation coefficient First correlation coefficient The first correlation coefficient has a value between 0.85 and 1.15. Corrected by methanation catalyst activity and reaction pressure; Obtain the second correlation coefficient Second correlation coefficient Corrected by the heat transfer efficiency and gas-liquid contact area of stripping tower 1; Obtain the third correlation coefficient Third correlation coefficient Corrected by the efficiency and steam pressure of stripping tower 1; Obtaining the green electricity fluctuation correction coefficient Green electricity fluctuation correction coefficient The value ranges from 0.9 to 1.05; the larger the fluctuation range of green electricity, the larger the green electricity fluctuation correction factor. The smaller the value; Obtain the denitrification ammonia nitrogen molar ratio The molar ratio of ammonia nitrogen for denitrification in selective non-catalytic reduction processes The value is between 1.0 and 1.5, representing the molar ratio of ammonia nitrogen to nitrogen in the selective catalytic reduction process. The value ranges from 0.8 to 1.2; Obtain the actual operating load of the methanation unit Actual operating load of the methanation unit The value ranges from 30% to 110%. Obtain the nitrogen concentration in the methanation feed gas nitrogen concentration in methanation feedstock gas The value ranges from 0.3%mol to 5%mol; Obtain the yield of ammonia from the side reaction The yield of ammonia from the side reaction The yield of the side reaction ammonia is between 0.05% and 0.3%. The value is positively correlated with the temperature of the side reaction, and the yield of ammonia in the side reaction. The value is positively correlated with the pressure of the side reaction; Obtaining flue gas flow rate from biomass power plants Flue gas flow rate of biomass power plant The unit is Nm³ / h; Obtaining flue gas concentration In the smoke concentration The value ranges from 100 mg / Nm³ to 3000 mg / Nm³. Obtain the initial ammonia nitrogen concentration of ammonia-containing wastewater Initial ammonia nitrogen concentration in ammonia-containing wastewater The value ranges from 0.5%wt to 3%wt. Obtain stripping steam utilization rate stripping steam utilization rate The stripping steam utilization rate is positively correlated with the operating temperature. Positively correlated with wastewater retention time; Get molar mass ; molar mass It is 17 g / mol; Get average molar mass ; average molar mass The unit is g / mol; Obtain the concentration of purchased ammonia water .
[0030] Step S2: Calculate the optimal feed flow rate for stripping ammonia-containing wastewater based on the correlation formula between methanation load and ammonia-containing wastewater feed flow rate. The relationship between methanation load and ammonia-containing wastewater feed flow rate is as follows: ; The optimal stripping steam consumption flow rate was calculated based on the correlation formula between biomass power plant flue gas parameters and stripping steam consumption, and the coupling formula between concentrated ammonia concentration and stripping steam consumption. Optimize the concentration of denitrified concentrated ammonia water The correlation formula between flue gas parameters and stripping steam consumption in biomass power plants is as follows: The coupling relationship between concentrated ammonia concentration and stripping steam consumption is as follows: .
[0031] Step S3: Calculate the optimal replenishment flow rate of purchased ammonia water based on the coupling relationship between concentrated ammonia water supply and purchased ammonia water for denitrification. The coupling relationship between the supply of concentrated ammonia and the purchase of ammonia for denitrification is as follows: .
[0032] Step S4: Control the ammonia-containing wastewater inlet valve 21 to make the actual flow rate of the stripping ammonia-containing wastewater feed match the optimized flow rate of the stripping ammonia-containing wastewater feed. Consistent; control the stripping steam inlet valve 31 to ensure that the actual input flow rate of stripping steam matches the optimized consumption flow rate of stripping steam. Consistent; control valve 61 of the purchased ammonia water to ensure that the actual replenishment flow rate of the purchased ammonia water matches the optimized replenishment flow rate of the purchased ammonia water. Consistent; Step S5: Proceed to step S1.
[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A synergistic control method for ammonia-containing wastewater and exhaust gas treatment system, characterized in that: Includes the following steps: Step S1: Obtain the first correlation coefficient Obtain the second correlation coefficient Obtain the third correlation coefficient Obtain the green electricity fluctuation correction coefficient. ; Obtain the denitrification ammonia nitrogen molar ratio Obtain the actual operating load of the methanation unit. ; Obtain the nitrogen concentration in the methanation feed gas ; Obtain the yield of ammonia from the side reaction Obtain the flue gas flow rate of a biomass power plant. ; Obtaining from flue gas concentration Obtain the initial ammonia nitrogen concentration of ammonia-containing wastewater. Obtain the stripping steam utilization rate ; obtain molar mass ; obtain average molar mass Obtain the concentration of purchased ammonia water. ; Step S2: Calculate the optimal feed flow rate for stripping ammonia-containing wastewater. ; Calculate the optimal consumption flow rate of stripping steam Optimize the concentration of denitrified concentrated ammonia water ; Step S3: Calculate the optimal replenishment flow rate of purchased ammonia. ; Step S4: Control the ammonia-containing wastewater inlet valve; control the stripping steam inlet valve; control the purchased ammonia water valve; Step S5: Proceed to step S1.
2. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 1, characterized in that: In step S2, the optimal feed flow rate of the stripping ammonia-containing wastewater is calculated based on the correlation formula between methanation load and ammonia-containing wastewater feed flow rate. The relationship between the methanation load and the ammonia-containing wastewater feed flow rate is expressed as follows: .
3. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 1, characterized in that: In step S2, the optimal stripping steam consumption flow rate is calculated based on the linkage relationship between biomass power plant flue gas parameters and stripping steam consumption, and the coupling relationship between concentrated ammonia concentration and stripping steam consumption. Optimize the concentration of denitrified concentrated ammonia water The correlation formula between the flue gas parameters of the biomass power plant and the stripping steam consumption is as follows: The coupling relationship between the concentration of concentrated ammonia and the consumption of stripping steam is as follows: .
4. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 1, characterized in that: In step S3, the optimal replenishment flow rate of the purchased ammonia water is calculated based on the coupling relationship between the concentrated ammonia water supply and the purchased ammonia water for denitrification. The coupling relationship between the concentrated ammonia water supply and the externally purchased ammonia water for denitrification is as follows: .
5. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 1, characterized in that: Step S4 includes the following steps: controlling the ammonia-containing wastewater inlet valve to make the actual flow rate of the stripping ammonia-containing wastewater feed different from the optimized flow rate of the stripping ammonia-containing wastewater feed. Consistent.
6. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 5, characterized in that: Step S4 further includes the following steps: controlling the stripping steam inlet valve to make the actual input flow rate of stripping steam match the optimized consumption flow rate of stripping steam. Consistent.
7. The collaborative control method for an ammonia-containing wastewater and waste gas treatment system according to claim 6, characterized in that: Step S4 further includes the following steps: controlling the purchased ammonia water valve to match the actual replenishment flow rate of the purchased ammonia water with the optimized replenishment flow rate of the purchased ammonia water. Consistent.
8. A wastewater and waste gas treatment system containing ammonia, comprising a stripping tower, wherein an ammonia-containing wastewater inlet pipe, a stripping steam inlet pipe, and a concentrated ammonia water outlet pipe are connected to the stripping tower, characterized in that: The ammonia-containing wastewater inlet pipe is connected to an ammonia-containing wastewater storage tank at the end furthest from the stripping tower. An ammonia-containing wastewater inlet valve is installed on the ammonia-containing wastewater inlet pipe. A stripping steam inlet valve is installed on the stripping steam inlet pipe. A concentrated ammonia water tank is connected to the end furthest from the stripping tower. A purchased ammonia water pipe and a denitrification ammonia water outlet pipe are connected to the concentrated ammonia water tank. A purchased ammonia water valve is installed on the purchased ammonia water pipe.