CN114678079A - Method for evaluating degradation and nitration reaction activity of organic matters in sewage treatment plant - Google Patents
Method for evaluating degradation and nitration reaction activity of organic matters in sewage treatment plant Download PDFInfo
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- CN114678079A CN114678079A CN202210363144.8A CN202210363144A CN114678079A CN 114678079 A CN114678079 A CN 114678079A CN 202210363144 A CN202210363144 A CN 202210363144A CN 114678079 A CN114678079 A CN 114678079A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000015556 catabolic process Effects 0.000 title claims abstract description 40
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 40
- 238000006396 nitration reaction Methods 0.000 title claims abstract description 35
- 230000000694 effects Effects 0.000 title claims abstract description 27
- 239000010865 sewage Substances 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 45
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000010802 sludge Substances 0.000 claims abstract description 22
- 239000005416 organic matter Substances 0.000 claims abstract description 15
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000010586 diagram Methods 0.000 claims abstract description 4
- 241000894006 Bacteria Species 0.000 claims description 34
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 31
- 230000001651 autotrophic effect Effects 0.000 claims description 24
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 230000001546 nitrifying effect Effects 0.000 claims description 7
- 238000007034 nitrosation reaction Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 6
- 101100436077 Caenorhabditis elegans asm-1 gene Proteins 0.000 claims description 4
- 101100204282 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) Asm-1 gene Proteins 0.000 claims description 4
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 4
- 230000012010 growth Effects 0.000 claims description 4
- 230000009569 heterotrophic growth Effects 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 4
- 230000036284 oxygen consumption Effects 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/10—Analysis or design of chemical reactions, syntheses or processes
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16C—COMPUTATIONAL CHEMISTRY; CHEMOINFORMATICS; COMPUTATIONAL MATERIALS SCIENCE
- G16C20/00—Chemoinformatics, i.e. ICT specially adapted for the handling of physicochemical or structural data of chemical particles, elements, compounds or mixtures
- G16C20/20—Identification of molecular entities, parts thereof or of chemical compositions
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- Bioinformatics & Cheminformatics (AREA)
- Computing Systems (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Bioinformatics & Computational Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Activated Sludge Processes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The invention discloses a method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant, which relates to the technical field of an activated sludge distinguishing method, S1 and establishes a model; s2, constructing a matrix description diagram; s3, constructing an activated sludge model; s4, constructing a metering coefficient table; and S5, calculating and comparing. According to the method for distinguishing the organic matter degradation and nitration reactions in the active sludge process, the ASM method is used for calculating the theoretical degradation rate, and compared with the Mie equation method, the ASM method fully considers each reaction process of sludge, is more suitable for the actual situation, and avoids errors; the method calculates the nitrification of ammonia nitrogen by using the product, and more accurately expresses the oxygen consumption of the ammonia nitrogen; the respiration rate is calculated according to the actual degradation rate of each substance, and the difference can be better reflected by comparing the actual value with the theoretical value, so that the degradation rate of organic matter and nitrate nitrogen and the influence degree of sewage on each reaction can be better judged.
Description
Technical Field
The invention relates to the technical field of an activated sludge distinguishing method, in particular to a method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant.
Background
The activated sludge process is an important process in sewage treatment, and the process is widely applied due to economy and good treatment effect. The aerobic activated sludge method can degrade organic matters into micromolecular organic matters or carbon dioxide and water, so that the content of the organic matters in the water is reduced; in addition, nitrifying bacteria in the aerobic activated sludge can oxidize ammonia nitrogen into nitrate nitrogen, which is beneficial to the utilization of the nitrate nitrogen by the following denitrifying bacteria, namely, the nitrate nitrogen is converted into nitrogen gas, and the removal of the nitrogen is facilitated.
At present, the control on total nitrogen indexes is very strict in China, the control on total nitrogen is relatively lagged in actual operation, the components in industrial wastewater are complex, after part of pollutants reach certain concentration, the inhibition effect on organic matter degradation or ammonia nitrogen nitration can be generated, and the phenomenon is that the conventional indexes cannot be indicated, namely the conventional indexes of water inlet of a sewage treatment plant are normal, but the phenomenon that a biochemical system is abnormal is caused, and after the abnormal phenomenon occurs, the organic matter degradation or nitration reaction is damaged, so that the subsequent repair is not facilitated. The invention provides a method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant, and solves the problems in the background art.
In order to achieve the above purposes, the invention is realized by the following technical scheme, and the method for evaluating the degradation and nitration reaction activity of the organic matters in the sewage treatment plant comprises the following steps:
s1, establishing a model;
s2, constructing a matrix description diagram;
s3, constructing an activated sludge model;
s4, constructing a metering coefficient table;
and S5, calculating and comparing.
Optionally, the method for evaluating the organic matter degradation and nitrification activity of the sewage treatment plant comprises the following specific steps:
s1, establishing a model
Establishing a model according to carbon oxidation and ammonia nitrogen nitrification matrix degradation in ASM1, and respectively calculating ammonia nitrogen degradation rate and COD degradation rate according to the water quality index of inlet water;
s2, constructing a matrix description chart
According to the component list in the carbon oxidation and nitrogen nitrification model, calculating and recording the reaction rate of the component reaction process, heterotrophic growth, autotrophic growth, decay decomposition, autotrophic decomposition and hydrolysis in the component list;
s3 construction of activated sludge model
Constructing a composition table according to the active sludge components, arranging the components in the table according to the serial numbers, and releasing the component definitions to facilitate checking;
s4, constructing a metering coefficient table
Constructing 5 stoichiometric coefficients in the ASMI, namely a heterotrophic bacteria yield coefficient, an autotrophic bacteria yield coefficient, an inert component score of the biosolids, a nitrogen content of the biosolids and a production and consumption of cells in a unit time of the nitrogen content of the inert components of the biosolids;
s5, calculating comparison
And obtaining theoretical calculation values, OURN and OUROC, according to a formula in S1, taking test water at the same time interval T to detect the concentrations of ammonia nitrogen (NH3), nitrate nitrogen and nitrite nitrogen according to the chemical formulas of nitrosation reaction and nitration reaction, and adding a nitration inhibitor into another group of parallel experiments to detect the good Oxygen (OD) in real time.
Optionally, the ammonia nitrogen and COD degradation rate formula in the model building process of S1 is:
wherein, YAIs the yield coefficient of autotrophic bacteria
SNHIs the mass concentration of ammonia nitrogen
KNHAmmonia half-saturation coefficient of autotrophic bacteria
XAIs active autotrophic bacteria biosolids
YHIs the yield coefficient of heterotrophic bacteria
SSIs the mass concentration of COD
KSIs the COD half-saturation coefficient of heterotrophic bacteria
XHIs active heterotrophic bacteria biosolids
μAMaximum reaction rate of ammonia nitrogen
μHThe maximum reaction rate of COD
Alternatively, the reaction temperature in the process of constructing the table of measurement coefficients of S4 is 20 °.
Optionally, the chemical formula of the nitrifying reaction and the nitrifying reaction in the S5 calculation comparison process is:
nitrosation reaction:
② nitration reaction:
③ full-flow nitration reaction:
optionally, the S5 calculates the reaction rate at each stage in the comparison process, and combines the reaction rate with the chemical reaction equation (3) to obtain:
ROURNO＝ROURNO3-+ROURNO2-
wherein: ROUR denotes the conversion rate
MOIs the mass fraction of oxygen
And then calculating the respiration rate curves of all the substances to obtain the respiration rate curves of all the parts, comparing the respiration rate curves with the reference value respectively, wherein the contrast value is less than 50 percent, the inferred activity is poor, the OUR is more than or equal to 50 percent, and the activity is good.
The invention provides a method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant, which has the following beneficial effects: according to the method for distinguishing the organic matter degradation and nitration reactions in the active sludge process, the ASM method is used for calculating the theoretical degradation rate, and compared with a single Mie equation method, the ASM method fully considers each reaction process of sludge, is more suitable for actual conditions, and reduces errors; the method calculates the nitrification of ammonia nitrogen by using the product, and more accurately expresses the oxygen consumption of the ammonia nitrogen; the respiration rate is calculated according to the actual degradation rate of each substance, and the difference can be better reflected by comparing the actual value with the theoretical value, so that the degradation rate of organic matter and nitrate nitrogen and the influence degree of sewage on each reaction can be better judged.
Detailed Description
A method for evaluating the degradation and nitration reactivity of organic matters in a sewage treatment plant comprises the following steps:
s1, establishing a model;
s2, constructing a matrix description diagram;
s3, constructing an activated sludge model;
s4, constructing a metering coefficient table;
and S5, calculating and comparing.
A method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant comprises the following specific steps:
s1, establishing a model
Establishing a model according to carbon oxidation and ammonia nitrogen nitration matrix degradation in ASM1, and respectively calculating ammonia nitrogen and COD degradation rates according to the water quality indexes of inlet water;
s2 construction matrix description chart
According to the component list in the carbon oxidation and nitrogen nitration model, calculating and recording the reaction rates of the component reaction process, heterotrophic growth, autotrophic growth, decay decomposition, autotrophic decomposition and hydrolysis in the component list;
s3 construction of activated sludge model
Constructing a composition table according to the active sludge components, arranging the components in the table according to the serial numbers, and releasing the component definitions to facilitate checking;
s4, constructing a metering coefficient table
Constructing 5 stoichiometric coefficients in the ASMI, namely a heterotrophic bacteria yield coefficient, an autotrophic bacteria yield coefficient, an inert component value of the biosolids, a nitrogen content of the biosolids and a production and consumption of cells in unit time of the nitrogen content of inert components of the biosolids;
s5, calculating comparison
And obtaining theoretical calculation values, OURN and OUROC, according to a formula in S1, taking test water at the same time interval T to detect the concentrations of ammonia nitrogen (NH3), nitrate nitrogen and nitrite nitrogen according to the chemical formulas of nitrosation reaction and nitration reaction, and adding a nitration inhibitor into another group of parallel experiments to detect the good Oxygen (OD) in real time.
S1, obtaining and referring the OURN and OUROC theoretical values in the modeling process:
wherein, YAIs the yield coefficient of autotrophic bacteria
SNHIs the mass concentration of ammonia nitrogen
KNHAmmonia half-saturation coefficient of autotrophic bacteria
XAIs active autotrophic bacteria biosolids
YHIs the yield coefficient of heterotrophic bacteria
SSIs the mass concentration of COD
KSIs the COD half-saturation coefficient of heterotrophic bacteria
XHIs active heterotrophic bacteria biosolids
μAMaximum reaction rate of ammonia nitrogen
μHThe maximum reaction rate of COD
The reaction temperature in the process of S4 constructing the gauge table was 20 °.
S5 calculating the chemical formula of the nitrifying reaction and the nitrifying reaction in the comparison process as follows:
nitrosation reaction:
② nitration reaction:
③ full-flow nitration reaction:
s5, calculating the reaction rate of each stage in the comparison process, and combining the reaction rate with the chemical reaction equation (3) to obtain:
ROURNO＝ROURNO3-+ROURNO2-
wherein: ROUR denotes the conversion rate
MOIs the mass fraction of oxygen
And then calculating the respiration rate curve of each substance to obtain the respiration rate curve of each part, comparing the respiration rate curve with a reference value respectively, wherein the contrast value is less than 50%, the inferred activity is poor, the OUR is more than or equal to 50%, and the activity is good.
In summary, the method for distinguishing the organic matter degradation and the nitration reaction in the active sludge process comprises the following steps:
s1, establishing a model
According to the model establishment of carbon oxidation and ammonia nitrogen nitrification substrate degradation in ASM1, the ammonia nitrogen and COD degradation rates are respectively calculated through the influent water quality index, OURN in the model establishment process of S1, and the reference of the OUROC theoretical value is obtained:
wherein, YAIs the yield coefficient of autotrophic bacteria
SNHIs the mass concentration of ammonia nitrogen
KNHAmmonia partial saturation coefficient of autotrophic bacteria
XAIs active autotrophic bacteria biosolids
YHIs the yield coefficient of heterotrophic bacteria
SSIs the mass concentration of COD
KSIs the COD half-saturation coefficient of heterotrophic bacteria
XHIs active heterotrophic bacteria biosolids
μAMaximum reaction rate of ammonia nitrogen
μHThe maximum reaction rate of COD
S2 construction matrix description chart
According to the component list in the carbon oxidation and nitrogen nitration model, calculating and recording the reaction rates of the component reaction process, heterotrophic growth, autotrophic growth, decay decomposition, autotrophic decomposition and hydrolysis in the component list;
s3, constructing an activated sludge model
Constructing a composition table according to the active sludge components, arranging the components in the table according to the serial numbers, and releasing the component definitions to facilitate checking;
s4, constructing a metering coefficient table
5 stoichiometric coefficients in the ASMI, namely a heterotrophic bacteria yield coefficient, an autotrophic bacteria yield coefficient, an inert composition value of the biosolids, a nitrogen content of the biosolids and a production and consumption of cells in the unit time of the nitrogen content of the inert components of the biosolids are constructed, and the reaction temperature in the process of constructing a metering coefficient table is 20 degrees in S4;
s5, calculating comparison
Obtaining theoretical calculation values, OURN and OUROC, according to the formula in S1, taking test water at the same time interval T to detect the concentrations of ammonia nitrogen (NH3), nitrate nitrogen and nitrite nitrogen according to the chemical formulas of nitrosation reaction and nitration reaction, adding a nitration inhibitor in another group of parallel experiments to detect the good Oxygen (OD) in real time, and obtaining the reaction rate of each stage by combining the chemical reaction formula (3):
ROURNO＝ROURNO3-+ROURNO2-
wherein: ROUR denotes the conversion rate
MOIs the mass fraction of oxygen
Calculating the respiration rate curve of each substance to obtain the respiration rate curve of each part, comparing with the reference value respectively, wherein the contrast value is less than 50%, the inferred activity is poor, the OUR is more than or equal to 50%, and the activity is good.
Claims (6)
1. A method for evaluating the degradation and nitration reaction activity of organic matters in a sewage treatment plant is characterized by comprising the following steps:
s1, establishing a model;
s2, constructing a matrix description diagram;
s3, constructing an activated sludge model;
s4, constructing a metering coefficient table;
and S5, calculating and comparing.
2. The method for evaluating the organic matter degradation and nitrification activity of the sewage treatment plant according to claim 1, wherein the method for evaluating the organic matter degradation and nitrification activity of the sewage treatment plant comprises the following specific steps:
s1, establishing a model
Establishing a model according to carbon oxidation and ammonia nitrogen nitration matrix degradation in ASM1, and respectively calculating ammonia nitrogen and COD degradation rates according to the water quality indexes of inlet water;
s2 construction matrix description chart
According to the component list in the carbon oxidation and nitrogen nitration model, calculating and recording the reaction rates of the component reaction process, heterotrophic growth, autotrophic growth, decay decomposition, autotrophic decomposition and hydrolysis in the component list;
s3 construction of activated sludge model
Constructing a composition table according to the active sludge components, arranging the components in the table according to the serial numbers, and releasing the component definitions to facilitate checking;
s4, constructing a metering coefficient table
Constructing 5 stoichiometric coefficients in the ASMI, namely a heterotrophic bacteria yield coefficient, an autotrophic bacteria yield coefficient, an inert component value of the biosolids, a nitrogen content of the biosolids and a production and consumption of cells in unit time of the nitrogen content of inert components of the biosolids;
s5, calculating comparison
And obtaining theoretical calculation values, OURN and OUROC, according to a formula in S1, taking test water at the same time interval T to detect the concentrations of ammonia nitrogen (NH3), nitrate nitrogen and nitrite nitrogen according to the chemical formulas of nitrosation reaction and nitration reaction, and adding a nitration inhibitor into another group of parallel experiments to detect the good Oxygen (OD) in real time.
3. The method for evaluating the organic matter degradation and nitrification activity of a sewage treatment plant according to claim 2, wherein: the ammonia nitrogen and COD degradation rate formula in the S1 model building process is as follows:
wherein, YAIs the yield coefficient of autotrophic bacteria
SNHIs the mass concentration of ammonia nitrogen
KNHAmmonia half-saturation coefficient of autotrophic bacteria
XAIs active autotrophic bacteria biosolids
YHIs the yield coefficient of heterotrophic bacteria
SSIs the mass concentration of COD
KSIs the COD half-saturation coefficient of heterotrophic bacteria
XHIs active heterotrophic bacteria biosolids
μAMaximum reaction rate of ammonia nitrogen
μHThe maximum reaction rate of COD.
4. The method for evaluating the organic matter degradation and nitrification activity of a sewage treatment plant according to claim 2, wherein: the reaction temperature in the process of S4 constructing the gauge table was 20 °.
5. The method for evaluating the organic matter degradation and nitrification activity of a sewage treatment plant according to claim 2, wherein: the chemical formula of the nitrifying reaction and the nitrifying reaction in the S5 calculation and comparison process is as follows:
nitrosation reaction:
② nitration reaction:
③ complete nitration reaction:
6. the method for evaluating the organic matter degradation and nitrification activity of a sewage treatment plant according to claim 2, wherein: the reaction rate of each stage is obtained in the S5 calculation and comparison process, and then the reaction rate is obtained by combining the chemical reaction equation (3):
ROURNO＝ROURNO3-+ROURNO2-
wherein: ROUR denotes the conversion rate
MOIs the mass fraction of oxygen
And then calculating the respiration rate curves of all the substances to obtain the respiration rate curves of all the parts, comparing the respiration rate curves with the reference value respectively, wherein the contrast value is less than 50 percent, the inferred activity is poor, the OUR is more than or equal to 50 percent, and the activity is good.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110098195A (en) * | 2010-02-26 | 2011-09-01 | 경희대학교 산학협력단 | Calibration method of activated sludge model no 1. and optimization method of wastewater treatment process using the same |
| CN112322483A (en) * | 2020-10-23 | 2021-02-05 | 美尚生化环境技术（上海）有限公司 | Microbial activity determination system and microbial activity determination method |
| CN112397137A (en) * | 2020-10-28 | 2021-02-23 | 南京大学 | Prediction model and prediction method for concentration change rule of organic micropollutants in sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20110098195A (en) * | 2010-02-26 | 2011-09-01 | 경희대학교 산학협력단 | Calibration method of activated sludge model no 1. and optimization method of wastewater treatment process using the same |
| CN112322483A (en) * | 2020-10-23 | 2021-02-05 | 美尚生化环境技术（上海）有限公司 | Microbial activity determination system and microbial activity determination method |
| CN112397137A (en) * | 2020-10-28 | 2021-02-23 | 南京大学 | Prediction model and prediction method for concentration change rule of organic micropollutants in sewage |
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