CN107505434A - anaerobic fermentation gas evaluation device and method - Google Patents
anaerobic fermentation gas evaluation device and method Download PDFInfo
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- CN107505434A CN107505434A CN201710851792.7A CN201710851792A CN107505434A CN 107505434 A CN107505434 A CN 107505434A CN 201710851792 A CN201710851792 A CN 201710851792A CN 107505434 A CN107505434 A CN 107505434A
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- 238000000855 fermentation Methods 0.000 title claims abstract description 44
- 238000011156 evaluation Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000000740 bleeding effect Effects 0.000 claims abstract description 7
- 241001269238 Data Species 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000035945 sensitivity Effects 0.000 claims description 7
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 abstract description 14
- 230000004151 fermentation Effects 0.000 abstract description 13
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 38
- 238000004458 analytical method Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0054—Ammonia
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- Analytical Chemistry (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The present invention relates to a kind of anaerobic fermentation gas evaluation device and method, belong to field of gas detection.The device includes anaerobic jar, data acquisition board, top cover, bleeding point, valve, aspiration pump, exhaust pipe, anaerobism end data module and PC end data modules；Anaerobic jar is used to place sample, and top is used for sealed sample provided with top cover；Data acquisition board is arranged inside of top cover, and for gathering the status data of sample, data acquisition board is provided with ammonia gas sensor, humiture and baroceptor and MCU；And sent by anaerobism end data module to PC end data modules.Gas probe is arranged on fermentation inside by the present invention, solves the problems, such as to influence anaerobic fermentation environmental condition in gas detection process, while continuous, the real-time detection gas concentration of energy, the change procedure of discharge capacity, it is ensured that the continuity and validity of experimental result.
Description
Technical field
The invention belongs to field of gas detection, is related to a kind of anaerobic fermentation gas evaluation device and method.
Background technology
Caused exhaust gas composition in the fermentation process of microorganism, represent the material situation of change in fermentation process.Especially
It is the gas discharge characteristics such as caused ammonia, hydrogen sulfide in fermentation process, the composition regulation in agriculture excrement composting, anaerobism is sent out
The technical combinations optimization of ferment and the efficient utilization and the depollution of environment of the fermentation energy have great importance.
The gas detection equipment of existing market, it is mainly used under the aerobic or micro- oxygen environment of open either semi open model
Eudiometry, and the tail gas on-line checking research and development for anaerobic fermentation are fresh few, because anaerobic fermentation has necessarily for yeasting
Requirement, therefore, design a kind of tail gas online detection instrument of suitable anaerobic fermentation, discharged for the gas of anaerobic fermentation process
The research of feature has great importance.
The country mainly has for the assay method of anaerobic fermentation gas：Chu Lili etc., for research different ratio pig manure, wheat
Stalk hybrid anaerobic fermentation term feature, it is autonomous be provided with can constant-temperature anaerobic fermentation device, by installation for fermenting, gas collecting apparatus and control
The warm part of device 3 composition, eudiometry are collected using pumping, and supporting associated gas measure device is analyzed.
Liu Yi is isolated and purified with term effect disquisition in methane backeria, and methane backeria is divided in material anaerobic fermentation gas production measure
In analysis, gas collection is carried out using hydrostatic(al) process, the measure that gas is carried out according to the chemical absorption method of national standard is analyzed.
The Exhaust measurement of present anaerobic fermentation, mainly by the way of being manually evacuated, the gas in fermentation is extracted out, carried out
Chemical analysis determines, and this mode is insufficient in the presence of being evacuated, and gas gas production can lose during extraction, causes to determine number
According to having differences property, simultaneously because air suction mode can influence the environmental index changes such as temperature in yeasting, humidity, destroy close
Reaction environment condition is closed, so as to influence the operation of anaerobic fermentation later stage, therefore most of fermentation gas determination experiment needs setting more
Individual parallel reaction sample, for the detection of stage, so not only experimental work amount is big, and the individual difference between each sample
Property is big, and data analysis difficulty is big.
At present, the not no detection device on anaerobic fermentation tail gas, existing anaerobic fermentation tail gas technology, still using artificial
The mode of pumping, experiments supporting room chemical analysis or gas apparatus detection are carried out, and this mode can influence the ring of fermenting experiment
Border condition, it is unfavorable for the tail gas observation detection of chronicity fermentation.
The content of the invention
In view of this, it is an object of the invention to provide a kind of anaerobic fermentation gas evaluation device, anaerobism can strictly be controlled
The ambient parameter of fermentation, while anaerobic fermentation environmental condition can not be influenceed, gas in real-time continuous detection anaerobic fermentation process
Concentration, discharge capacity, gas detection are sensed using sensing probe, and detection accuracy reaches 0.1ppm, can precisely sensitive measure fermentation
Middle minimum gas produces, while supporting online gas identification, data processing, is provided for anaerobic bacteria or fermenting experiment metabolic analysis
Detailed gas data analysis result, reduces artificial calculation error.
To reach above-mentioned purpose, the present invention provides following technical scheme：
Anaerobic fermentation gas evaluation device, the device include anaerobic jar (1), data acquisition board (2), top cover (3), anaerobism end
Data module (8) and PC end datas module (9)；
The anaerobic jar (1) is used to place sample, and top is used for sealed sample provided with top cover (3)；The data acquisition board
(2) it is arranged on the inside of top cover (3), is sent for gathering the status data of sample, and by anaerobism end data module (8) to PC ends
Data module (9).
Further, described device also includes bleeding point (4), valve (5), aspiration pump (6) and exhaust pipe (7)；
The bleeding point (4) is arranged on top cover (3), is connected by exhaust pipe (7) with aspiration pump (6), the pumping
Pump (6) is used for the negative pressure for extracting anaerobic jar (1) interior certain value, and the exhaust pipe (7) is provided with valve (5), controls exhaust tube
The opening and closing on road (7).
Further, the data acquisition board (2) is provided with ammonia gas sensor, humiture and baroceptor and micro-control
Unit (Microcontroller Unit, MCU) processed；
The data receiver pin RXD2 and MCU of the ammonia gas sensor data receiver pin RXD2 are connected, ammonia sensing
The data of device send pin TXD2 and are connected with MCU Data Data transmission pin TXD2, while ammonia gas sensor is grounded；
The data wire SDA and MCU of the humiture and baroceptor data wire SDA are connected, humiture and air pressure transmission
The clock cable SCL and MCU of sensor clock cable SCL are connected, while humiture and baroceptor ground connection；
Meanwhile the MCU connects power supply and ground connection.
Further, the anaerobism end data module (8) is in data acquisition board (2), the anaerobism end data module (8)
It is wireless transport module or wire transmission module with PC end datas module (9)；
The data receiver pin RXD1 and MCU of the anaerobism end data module (8) data receiver pin RXD1 are connected, and detest
The data of oxygen end data module (8) send pin TXD1 and are connected with MCU Data Data transmission pin TXD1, while anaerobism end number
It is grounded according to module (8).
Anaerobic fermentation gas evaluation method based on described device, comprises the following steps：
S1：MCU is initialized, obtains compensation coefficient inside humiture and baroceptor, and preheat；
S2：Whether detection anaerobism end data module (8) receives PC end datas module (9) instruction；If receiving, anaerobism
End data module (8) obtains data and sends interval and preserve, and enters step S3；If being not received by, step is directly entered
S3；
S3：MCU detects whether the new data of ammonia gas sensor, if so, then MCU parses the new data of ammonia gas sensor,
Ammonia concentration is obtained, and is sampled by humiture and baroceptor, obtains temperature, pressure, the value of humidity, and combines correction system
Number fits the analogue value, subsequently into step S4；If nothing：Then it is directly entered step S4；
S4：MCU detection data send whether interval reaches；If reaching, anaerobism end data module (8) is called to send sampling
Data afterwards, into step S2；If not reaching, step S2 is directly entered.
Further, in the step S3, humiture and baroceptor obtain sound pressure sensitivity C1, expression formula SENST1；
Pressure compensation C2, expression formula OFFT1；Presser sensor temperature coefficient C3 expression formulas are TCS；Pressure compensation temperature coefficient C4, expression
Formula is TCO, reference temperature C5, expression formula TREF；The temperature coefficient C6 of temperature, expression formula TEMPSENS；Pressure value digital quantity
D1, temperature value digital quantity D2；Humidity D3；
1) temperature is specially：
The difference dT=D2-T of actual temperature and reference temperatureREF=D2-C5*28,
Actual temperature (- 40~85 DEG C of resolution ratio are 0.01) TEMP=20+dT*TEMPSENS=2000+dT*C6/223；
2) pressure is specially：
Actual temperature offsets OFF=OFFT1+ TCS*dT=C2*216+(C3*dT)/27,
Actual temperature sensitivity S ENS=SENST1+ TCS*dT=C1*216+(C3*dT)/27,
Temperature compensated pressure (10~1200mbar resolution ratio is 0.01mbar),
P-D1*SENS-OFF=(D1*SENS/221-OFF)/215；
3) humidity is specially：
Actual relative humidity (- 6%RH~118% resolution ratio be RH0.01%RH) RH=100* (- 6+125*D3/216)。
The beneficial effects of the present invention are：Gas probe is arranged on fermentation inside by the present invention, is solved gas and was detected
The problem of anaerobic fermentation environmental condition is influenceed in journey, while continuous, the real-time detection gas concentration of energy, the change procedure of discharge capacity,
Ensure the continuity and validity of experimental result.Environmental control system and the gas detection point of the anaerobic fermentation conditions of coordinative composition of equipments
Analysis system, while strictly control anaerobic fermentation environment, gas detection data is analyzed and processed in time, have effectively evaded artificial behaviour
The resultant error of work.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carried out
Explanation：
Fig. 1 is schematic structural view of the invention；
Fig. 2 is apparatus of the present invention circuit total figure；
Fig. 3 is MCU circuit diagrams.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in figure 1, anaerobic fermentation gas evaluation device, including anaerobic jar 1, data acquisition board 2, top cover 3, bleeding point 4,
Valve 5, aspiration pump 6, exhaust pipe 7, anaerobism end data module 8 and PC end datas module 9；
Anaerobic jar 1 is used to place sample, and top is used for sealed sample provided with top cover 3；Data acquisition board 2 is arranged at top cover 3
Inner side, sent for gathering the status data of sample, and by anaerobism end data module 8 to PC end datas module 9.
Bleeding point 4 is arranged on top cover 3, is connected by exhaust pipe 7 with aspiration pump 6, and aspiration pump 6 is used to extract anaerobic jar
The negative pressure of certain value in 1, exhaust pipe 7 are provided with valve 5, control the opening and closing of exhaust pipe 7.
Anaerobism end data module 8 and PC end datas module 9 are wireless transport module；Anaerobism end data module 8 be monolithic without
Line transceiver chip NRF24L01, in data acquisition board 2；
As shown in Fig. 2 data acquisition board be provided with ammonia gas sensor, humiture and baroceptor (TPH sensors), with
And micro-control unit (MicrocontrollerUnit, MCU)；
The data receiver pin RXD2 and MCU of ammonia gas sensor data receiver pin RXD2 are connected, ammonia gas sensor
Data send pin TXD2 and are connected with MCU Data Data transmission pin TXD2, while ammonia gas sensor is grounded；
The data wire SDA and MCU of humiture and baroceptor data wire SDA are connected, humiture and baroceptor
Clock cable SCL be connected with MCU clock cable SCL, while humiture and baroceptor ground connection；
Meanwhile MCU connects power supply and ground connection.
The data receiver pin RXD1 and MCU of monolithic wireless transceiver chip data receiver pin RXD1 are connected, monolithic
The data of wireless transceiver chip send pin TXD1 and are connected with MCU Data Data transmission pin TXD1, while monolithic is wireless
Transponder chip is grounded.
Fig. 3 is MCU circuit diagrams, the anaerobic fermentation gas evaluation method based on described device, is comprised the following steps：
S1：MCU is initialized, obtains compensation coefficient inside humiture and baroceptor, and preheat；
S2：Whether detection anaerobism end data module 8, which receives PC end datas module 9, instructs；If receiving, anaerobism end number
Data transmission interval is obtained according to module 8 and is preserved, and enters step S3；If being not received by, step S3 is directly entered；
S3：MCU detects whether the new data of ammonia gas sensor, if so, then MCU parses the new data of ammonia gas sensor,
Ammonia concentration is obtained, and is sampled by humiture and baroceptor, obtains temperature, pressure, the value of humidity, and combines correction system
Number fits the analogue value, subsequently into step S4；If nothing：Then it is directly entered step S4；
Humiture and baroceptor obtain sound pressure sensitivity C1, expression formula SENST1；Pressure compensation C2, expression formula are
OFFT1；Presser sensor temperature coefficient C3 expression formulas are TCS；Pressure compensation temperature coefficient C4, expression formula TCO, reference temperature C5,
Expression formula is TREF；The temperature coefficient C6 of temperature, expression formula TEMPSENS；It is as shown in the table：
Humiture atmospheric pressure sensor corrects value list
| Variable | Type | Expression formula |
| C1 | Sound pressure sensitivity | SENST1 |
| C2 | Pressure compensation | OFFT1 |
| C3 | Presser sensor temperature coefficient | TCS |
| C4 | Pressure compensation temperature coefficient | TCO |
| C5 | Reference temperature | TREF |
| C6 | The temperature coefficient of temperature | TEMPSENS |
Obtain pressure value digital quantity D1, temperature value digital quantity D2；It is as shown in the table：
| D1 | Pressure value digital quantity |
| D2 | Temperature value digital quantity |
| D3 | Humidity |
1) temperature is specially：
The difference dT=D2-T of actual temperature and reference temperatureREF=D2-C5*28,
Actual temperature (- 40~85 DEG C of resolution ratio are 0.01) TEMP=20+dT*TEMPSENS=2000+dT*C6/223；
2) combination temperature is corrected, and pressure is specially：
Actual temperature offsets OFF=OFFT1+ TCS*dT=C2*216+(C3*dT)/27,
Actual temperature sensitivity S ENS=SENST1+ TCS*dT=C1*216+(C3*dT)/27,
Temperature compensated pressure (10~1200mbar resolution ratio is 0.01mbar),
P-D1*SENS-OFF=(D1*SENS/221-OFF)/215；
3) humidity is specially：
| RH | Actual relative humidity (- 6%RH~118% resolution ratio be RH0.01%RH) | RH=100* (- 6+125*D3/216) |
Actual relative humidity (- 6%RH~118% resolution ratio be RH0.01%RH) RH=100* (- 6+125*D3/216)。
S4：MCU detection data send whether interval reaches；If reaching, after calling anaerobism end data module 8 to send sampling
Data, into step S2；If not reaching, step S2 is directly entered.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (6)
1. anaerobic fermentation gas evaluation device, it is characterised in that：The device includes anaerobic jar (1), data acquisition board (2), top cover
(3), anaerobism end data module (8) and PC end datas module (9)；
The anaerobic jar (1) is used to place sample, and top is used for sealed sample provided with top cover (3)；The data acquisition board (2) sets
It is placed on the inside of top cover (3), is sent for gathering the status data of sample, and by anaerobism end data module (8) to PC end datas
Module (9).
2. anaerobic fermentation gas evaluation device according to claim 1, it is characterised in that：Described device also includes bleeding point
(4), valve (5), aspiration pump (6) and exhaust pipe (7)；
The bleeding point (4) is arranged on top cover (3), is connected by exhaust pipe (7) with aspiration pump (6), the aspiration pump (6)
For extracting the negative pressure of anaerobic jar (1) interior certain value, the exhaust pipe (7) is provided with valve (5), control exhaust pipe (7)
Opening and closing.
3. anaerobic fermentation gas evaluation device according to claim 1 or 2, it is characterised in that：The data acquisition board (2)
It is provided with ammonia gas sensor, humiture and baroceptor and micro-control unit (Microcontroller Unit, MCU)；
The data receiver pin RXD2 and MCU of the ammonia gas sensor data receiver pin RXD2 are connected, ammonia gas sensor
Data send pin TXD2 and are connected with MCU Data Data transmission pin TXD2, while ammonia gas sensor is grounded；
The data wire SDA and MCU of the humiture and baroceptor data wire SDA are connected, humiture and baroceptor
Clock cable SCL be connected with MCU clock cable SCL, while humiture and baroceptor ground connection；
Meanwhile the MCU connects power supply and ground connection.
4. anaerobic fermentation gas evaluation device according to claim 3, it is characterised in that：The anaerobism end data module
(8) in the data acquisition board (2), the anaerobism end data module (8) and PC end datas module (9) be wireless transport module or
Wire transmission module；
The data receiver pin RXD1 and MCU of the anaerobism end data module (8) data receiver pin RXD1 are connected, anaerobism end
The data of data module (8) send pin TXD1 and are connected with MCU Data Data transmission pin TXD1, while anaerobism end data mould
Block (8) is grounded.
5. the anaerobic fermentation gas evaluation method based on the described device of claim 3 or 4, it is characterised in that：This method include with
Lower step：
S1：MCU is initialized, obtains compensation coefficient inside humiture and baroceptor, and preheat；
S2：Whether detection anaerobism end data module (8) receives PC end datas module (9) instruction；If receiving, anaerobism end number
Data transmission interval is obtained according to module (8) and is preserved, and enters step S3；If being not received by, step S3 is directly entered；
S3：MCU detects whether the new data of ammonia gas sensor, if so, then MCU parses the new data of ammonia gas sensor, obtains
Ammonia concentration, and sampled by humiture and baroceptor, temperature, pressure, the value of humidity are obtained, and combine compensation coefficient and intend
The analogue value is closed out, subsequently into step S4；If nothing：Then it is directly entered step S4；
S4：MCU detection data send whether interval reaches；If reaching, after calling anaerobism end data module (8) to send sampling
Data, into step S2；If not reaching, step S2 is directly entered.
6. anaerobic fermentation gas evaluation method according to claim 5, it is characterised in that：In the step S3, humiture
Sound pressure sensitivity C1, expression formula SENS are obtained with baroceptorT1；Pressure compensation C2, expression formula OFFT1；Presser sensor
Temperature coefficient C3 expression formulas are TCS；Pressure compensation temperature coefficient C4, expression formula TCO, reference temperature C5, expression formula TREF；
The temperature coefficient C6 of temperature, expression formula TEMPSENS；Pressure value digital quantity D1, temperature value digital quantity D2；Humidity D3；
1) temperature is specially：
The difference dT=D2-T of actual temperature and reference temperatureREF=D2-C5*28,
- 40~85 DEG C of resolution ratio are 0.01, actual temperature TEMP=20+dT*TEMPSENS=2000+dT*C6/223；
2) pressure is specially：
Actual temperature offsets OFF=OFFT1+ TCS*dT=C2*216+(C3*dT)/27,
Actual temperature sensitivity S ENS=SENST1+ TCS*dT=C1*216+(C3*dT)/27,
Temperature compensated pressure, 10~1200mbar resolution ratio are 0.01mbar,
P-D1*SENS-OFF=(D1*SENS/221-OFF)/215；
3) humidity is specially：
The resolution ratio of -6%RH~118% is RH0.01%RH, actual relative humidity RH=100* (- 6+125*D3/216)。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111454819A (en) * | 2020-04-14 | 2020-07-28 | 坤德盛科(北京)科技有限公司 | Organic membrane fermentation device and use method thereof |
| CN116577128A (en) * | 2023-07-14 | 2023-08-11 | 合肥工业大学 | Intelligent collection and analysis method for biodegradable plastic wastewater treatment data |
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| CN206074386U (en) * | 2016-08-25 | 2017-04-05 | 中国农业科学院农产品加工研究所 | Determine the device of dough fermentability |
| CN207215791U (en) * | 2017-09-19 | 2018-04-10 | 重庆市畜牧科学院 | anaerobic fermentation gas evaluation device |
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2017
- 2017-09-19 CN CN201710851792.7A patent/CN107505434A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353798A (en) * | 2011-07-01 | 2012-02-15 | 华东理工大学 | Biological fermentation process-oriented olfactory analog instrument and online analysis method |
| CN105585129A (en) * | 2016-01-12 | 2016-05-18 | 南京大学 | Device and method for simulating fate of nitrogen in in-situ river channel ecosystem |
| CN206074386U (en) * | 2016-08-25 | 2017-04-05 | 中国农业科学院农产品加工研究所 | Determine the device of dough fermentability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111454819A (en) * | 2020-04-14 | 2020-07-28 | 坤德盛科(北京)科技有限公司 | Organic membrane fermentation device and use method thereof |
| CN116577128A (en) * | 2023-07-14 | 2023-08-11 | 合肥工业大学 | Intelligent collection and analysis method for biodegradable plastic wastewater treatment data |
| CN116577128B (en) * | 2023-07-14 | 2023-09-15 | 合肥工业大学 | Intelligent collection and analysis method for biodegradable plastic wastewater treatment data |
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Application publication date: 20171222 |
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