CN114487371A - Water planting method biodegradation instrument - Google Patents
Water planting method biodegradation instrument Download PDFInfo
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- CN114487371A CN114487371A CN202210094749.1A CN202210094749A CN114487371A CN 114487371 A CN114487371 A CN 114487371A CN 202210094749 A CN202210094749 A CN 202210094749A CN 114487371 A CN114487371 A CN 114487371A
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- water bath
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- decarburization
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 238000006065 biodegradation reaction Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 74
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000005273 aeration Methods 0.000 claims abstract description 21
- 238000007791 dehumidification Methods 0.000 claims abstract description 16
- 238000005261 decarburization Methods 0.000 claims abstract description 12
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 11
- 238000012136 culture method Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 239000000463 material Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 30
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 239000001569 carbon dioxide Substances 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000003203 everyday effect Effects 0.000 description 4
- 238000009264 composting Methods 0.000 description 3
- 238000005262 decarbonization Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000002054 inoculum Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 238000004448 titration Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002361 compost Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000122205 Chamaeleonidae Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000002479 acid--base titration Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920006238 degradable plastic Polymers 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 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
- G01N33/44—Resins; Plastics; Rubber; Leather
- G01N33/442—Resins; Plastics
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a water culture method biodegradation instrument, which comprises a box body, a plurality of reaction systems, a plurality of aeration pumps, a water bath system and a data processing system, wherein the reaction systems are arranged in the box body; the interior of the box body is provided with a plurality of reaction channels which are distributed in parallel; the reaction systems are respectively arranged in the reaction channels; each reaction system comprises a decarburization bottle, a reaction bottle, an ammonia removal bottle, a dehumidification bottle and a detector which are sequentially communicated, wherein a gas flow speed adjusting device is arranged on a pipeline between the dehumidification bottle and the detector, and a gas inlet and a gas outlet of the reaction bottle are positioned at the top of the reaction bottle; the aeration pumps are respectively arranged in the cabinet at the top of the box body and are respectively communicated with the decarburization bottles; the water bath system is arranged at the bottom of the box body, so that each decarburization bottle and each reaction bottle are positioned in the water bath of the water bath system; the data processing system is electrically connected with the plurality of detectors respectively. The invention can rapidly and accurately determine the degradability of the material.
Description
Technical Field
The invention relates to the technical field of biodegradation equipment, in particular to a water culture method biodegradation instrument.
Background
Recycling and disposal have become a hot spot as the amount of plastic used increases, but complete recycling of the plastic is difficult. In addition, some difficult to recycle plastics such as fishing gear, agricultural covers, and water soluble polymers often leak into the environment from the closed waste disposal cycle. The use of a stung organism decomposing material is one of the effective ways to solve such environmental problems. The product or packaging material that is fed to the composting device should be as biodegradable as possible. It is important to determine the potential biodegradability of these materials and to obtain an indication of their biodegradability in the natural environment.
However, in the prior art, most of biodegradation is carried out by adopting large-volume reaction kettles, on one hand, compost or vermiculite and other solid wastes are contained in the reaction kettles, so that the inoculum and reactants are piled together for reaction, the reaction is heavy and inconvenient to operate, the uniformity of solid matter mixing is difficult to ensure, the reaction is very easy to cause incomplete reaction, and the complete reaction needs a long time; finally, the temperature is controlled by adopting an air bath mode, the temperature control precision is not high, the temperature uniformity of the whole cavity is poor, so that the parallelism and repeatability of experimental data are poor, the humidity regulation difference of each reaction kettle is large, the reaction progress is different, and the error is large;
the existing biodegradation instrument usually adopts an absorption method or a composting method, wherein the absorption method uses alkaline solution to absorb released carbon dioxide, then samples to perform acid-base titration, and calculates the absorption amount of the carbon dioxide according to the amount of consumed acid liquor, the titration end point is difficult to judge, the error is large, the data parallelism is poor, manual titration is needed every day, and the efficiency is low; the composting reaction, aeration and oxygen supply are carried out, and finally a titration method is adopted to determine the amount of released carbon dioxide, but the determination method has great dependence on manpower, experimenters need to replace alkali liquor every day, sample and titrate every day, calculation is carried out every day, and an experiment period may need to last for 3-6 months.
Therefore, the problem to be solved by the technical personnel in the field is to provide a rapid and accurate biodegradation instrument for the water culture method.
Disclosure of Invention
In view of the above, the invention provides a water culture method biodegradation instrument, which is used for rapidly detecting the biodegradability of a biological base material and for rapidly measuring the degradation rate of degradable plastic products and raw materials.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hydroponic biodegradation meter comprising:
the device comprises a box body, a plurality of reaction channels and a plurality of reaction channels, wherein the reaction channels are distributed in parallel;
a plurality of reaction systems respectively placed in the plurality of reaction channels; each reaction system comprises a decarburization bottle, a reaction bottle, an ammonia removal bottle, a dehumidification bottle and a detector which are sequentially communicated, wherein a gas flow rate adjusting device is arranged on a pipeline between the dehumidification bottle and the detector; the gas inlet and the gas outlet of the reaction bottle are both positioned at the top of the reaction bottle;
the aeration pumps are respectively arranged in a cabinet at the top of the box body and are respectively communicated with the decarburization bottles;
the water bath system is arranged at the bottom of the box body, so that each decarburization bottle and each reaction bottle are positioned in the water bath of the water bath system;
and the data processing system is electrically connected with the plurality of detectors respectively.
By adopting the scheme, the invention has the beneficial effects that:
1) each reaction channel is provided with an aeration pump to realize independent aeration, and meanwhile, each reaction channel is provided with a gas flow rate meter to control the flow rate, so that each reaction channel is ensured to be under a certain aeration condition, and the repeatability and the stability of the experiment are ensured;
2) the temperature is controlled by adopting a water bath mode, each reaction bottle is positioned in water and is uniformly heated, the specific heat of the water is large, the temperature fluctuation is small, the reaction bottles can be positioned in a constant temperature environment, and the parallelism and the repeatability of data are greatly improved;
3) the gas released by the reaction bottle is firstly subjected to ammonia removal, then is subjected to dehumidification, then is subjected to dust removal, and then is sent to the detector for detection, so that the detection precision can be improved, the service life is prolonged, and the environment can be protected.
Further, a magnetic stirrer is arranged at the bottom of each reaction bottle.
The beneficial effect that adopts above-mentioned further technical scheme to produce is, provides continuous stirring in whole reaction process, ensures the homogeneity of reactant, increases the dissolution of oxygen, the going on of acceleration reaction.
Furthermore, each aeration pump is arranged in the cabinet through a shockproof foot at the bottom of the aeration pump; soundproof cotton is pasted on the inner wall of the cabinet.
The beneficial effects that adopt above-mentioned further technical scheme to produce do, reduce noise at work, provide the silence environment.
Furthermore, each detector comprises a shell and an infrared sensor, and the dehumidification bottles in the same reaction channel are communicated with the shells through the pipelines; the infrared sensor is installed inside the housing.
The beneficial effect that adopts above-mentioned further technical scheme to produce is that, every reaction channel is furnished with an infrared sensor, avoids mutual interference, can utilize gas concentration and absorption intensity relation differentiation gas component of high efficiency fast to confirm the concentration of carbon dioxide.
Further, the gas flow rate adjusting device comprises a gas flow meter and a flow adjusting valve, and the gas flow meter and the flow adjusting valve are sequentially installed on the pipeline from the dehumidification bottle to the shell.
Adopt the beneficial effect that above-mentioned further technical scheme produced to do, realize accurate regulation and control, wherein gas flowmeter can instruct the change of velocity of flow in real time, and the governing valve can finely tune.
Furthermore, the water bath system also comprises a liquid level sensor and an electromagnetic valve, wherein the liquid level sensor is arranged in the water bath tank and is close to the bottom; the electromagnetic valve is arranged at a water inlet of the water bath tank connected with a water source; the liquid level sensor is electrically connected with the electromagnetic valve.
Adopt the beneficial effect that above-mentioned further technical scheme produced to be, can carry out the moisturizing automatically when the liquid level is low excessively, prevent dry combustion method, reduce artifical burden.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a reaction system, an aeration pump and a water bath system provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
As shown in fig. 1, the embodiment of the invention discloses a water culture biodegradation instrument, which comprises a box body, a plurality of reaction systems, a plurality of aeration pumps 1, a water bath system 2 and a data processing system; the interior of the box body is provided with a plurality of reaction channels which are distributed in parallel; the reaction systems are respectively arranged in the reaction channels; each reaction system comprises a decarburization bottle 3, a reaction bottle 4, an ammonia removal bottle 5, a dehumidification bottle 6 and a detector 7 which are sequentially communicated, wherein a gas flow rate adjusting device 8 is arranged on a pipeline between the dehumidification bottle 6 and the detector 7; the air inlet 41 and the air outlet 42 of the reaction bottle 4 are both positioned at the top part thereof; in the embodiment, the decarbonization bottle 3, the reaction bottle 4, the ammonia removal bottle 5 and the dehumidification bottle 6 form a complete culture system, compost leachate is used as inoculum, and efficient reaction is carried out in a full-liquid state; wherein the decarbonization bottle 3 is filled with alkali liquor to ensure that water-saturated air without carbon dioxide is introduced into the reaction bottle 4 to create a strong aerobic environment, and the ammonia removal bottle 5 is used for absorbing ammonia in gas, so as to avoid corrosion and prolong the service life; the aeration pumps 1 are respectively arranged in a cabinet at the top of the box body, and the aeration pumps 1 are respectively communicated with the decarburization bottles 3; the water bath system 2 is arranged at the bottom of the box body, so that each decarburization bottle 3 and each reaction bottle 4 are positioned in the water bath of the water bath system 2 to ensure the same temperature condition, the water bath system 2 comprises a PT100 temperature sensor and is provided with an electric heating system and an electric cooling system, and when the actual temperature deviates from the set temperature, automatic adjustment can be carried out; the data processing system is respectively and electrically connected with the plurality of detectors 7, and displays the concentration and the continuous accumulation amount of the carbon dioxide in the detected gas in real time.
Each reaction channel is provided with an aeration pump 1 to realize independent aeration, and meanwhile, each reaction channel is provided with a gas flow rate adjusting device for controlling the flow rate, so that each reaction channel is ensured to be under a certain aeration condition, and the repeatability and the stability of the experiment are ensured; the inoculum and the reactant are both in a liquid environment to react in a water-based reaction mode, so that the method is simple and efficient; the temperature is controlled by adopting a water bath mode, each reaction bottle 4 is positioned in water and is uniformly heated, the specific heat of the water is large, the temperature fluctuation is small, the reaction bottles 4 can be positioned in a constant temperature environment, and the parallelism and the repeatability of data are greatly improved; the gas released by the reaction bottle 4 is firstly subjected to ammonia removal, then dehumidification, then dust removal and then sent to the detector 7 for detection, so that the detection precision can be improved, the service life is prolonged, and the environment can be protected.
Specifically, a magnetic stirrer is installed at the bottom of each reaction flask 4.
Specifically, each aeration pump 1 is arranged in the cabinet through a shockproof footing at the bottom of the aeration pump; soundproof cotton is pasted on the inner wall of the machine cabinet.
Specifically, each detector 7 comprises a shell and an infrared sensor, and the dehumidification bottles 6 in the same reaction channel are communicated with the shell through pipelines; the infrared sensor is installed inside the shell, and the data processing system is electrically connected with the infrared sensor.
Specifically, the gas flow rate adjusting device 8 includes a gas flow meter and a flow adjusting valve, which are sequentially installed on a pipe from the dehumidifying bottle 6 to the housing.
Specifically, the water bath system 2 further comprises a liquid level sensor and an electromagnetic valve, wherein the liquid level sensor is arranged in the water bath tank and close to the bottom; the electromagnetic valve is arranged at the water inlet of the water bath tank connected with a water source; the liquid level sensor is electrically connected with the electromagnetic valve.
The working process of the invention is as follows:
adopt and explode air pump 1 and carry out the air feed, the gas that supplies at first is handled through decarbonization bottle 3, become the water saturation gas that does not contain carbon dioxide, gas enters into retort 4 afterwards, provide aerobic environmental condition for the metabolism of microorganism, later remaining gas carries carbon dioxide, ammonia, steam etc. that the metabolism produced and enters into deammoniation bottle 5, ammonia in the gas is absorbed and is got rid of, remaining gas enters into dehumidification bottle 6, the steam in the gas is adsorbed and is got rid of by the chameleon silica gel, remaining gas enters into gas velocity of flow adjusting device 8, gas is injectd suitable speed through gas velocity of flow adjusting device 8 and is got into detector 7, infrared sensor monitors the concentration of carbon dioxide in the gas in real time, and the accumulated value is displayed on the data processing system in the form of concentration per million, and the accumulated value is automatically calculated and displayed on the data processing system.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A water culture method biodegradation instrument is characterized by comprising:
the device comprises a box body, a plurality of reaction channels and a plurality of reaction channels, wherein the reaction channels are distributed in parallel;
a plurality of reaction systems respectively placed in the plurality of reaction channels; each reaction system comprises a decarburization bottle, a reaction bottle, an ammonia removal bottle, a dehumidification bottle and a detector which are sequentially communicated, wherein a gas flow rate adjusting device is arranged on a pipeline between the dehumidification bottle and the detector; the gas inlet and the gas outlet of the reaction bottle are both positioned at the top of the reaction bottle;
the aeration pumps are respectively arranged in a cabinet at the top of the box body and are respectively communicated with the decarburization bottles;
the water bath system is arranged at the bottom of the box body, so that each decarburization bottle and each reaction bottle are positioned in the water bath of the water bath system;
and the data processing system is electrically connected with the plurality of detectors respectively.
2. The apparatus of claim 1, wherein a magnetic stirrer is installed at the bottom of each reaction vessel.
3. The apparatus of claim 1, wherein each aeration pump is installed in the cabinet through a shock-proof foot at the bottom of the aeration pump; soundproof cotton is pasted on the inner wall of the cabinet.
4. The apparatus of claim 1, wherein each of said detectors comprises a housing and an infrared sensor, and said dehumidification bottle and said housing in the same reaction channel are connected and communicated through said pipe; the infrared sensor is installed inside the housing.
5. The apparatus of claim 4, wherein the gas flow rate regulating device comprises a gas flow meter and a flow regulating valve, and the gas flow meter and the flow regulating valve are sequentially installed on the pipeline from the dehumidifying bottle to the housing.
6. The apparatus of claim 1, wherein the water bath system further comprises a liquid level sensor and a solenoid valve, the liquid level sensor is mounted in the water bath tank near the bottom; the electromagnetic valve is arranged at a water inlet of the water bath tank connected with a water source; the liquid level sensor is electrically connected with the electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210094749.1A CN114487371A (en) | 2022-01-26 | 2022-01-26 | Water planting method biodegradation instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210094749.1A CN114487371A (en) | 2022-01-26 | 2022-01-26 | Water planting method biodegradation instrument |
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| Publication Number | Publication Date |
|---|---|
| CN114487371A true CN114487371A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210094749.1A Pending CN114487371A (en) | 2022-01-26 | 2022-01-26 | Water planting method biodegradation instrument |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949911A (en) * | 2015-06-09 | 2015-09-30 | 深圳市计量质量检测研究院 | Material biological degradability detection evaluation equipment and method |
| CN206132546U (en) * | 2016-10-10 | 2017-04-26 | 南京沙夫特环境科技有限公司 | Detect quick biodegradability's of chemicals device |
| CN210419793U (en) * | 2019-04-26 | 2020-04-28 | 湖南锦佳环保科技有限公司 | Fertilizer compost fermenting installation |
| CN111499439A (en) * | 2020-06-08 | 2020-08-07 | 中农新科(苏州)有机循环研究院有限公司 | Miniature intelligent temperature-control composting reactor |
| CN211235862U (en) * | 2019-12-30 | 2020-08-11 | 青岛爱星清洁用品有限公司 | Textile biodegradation rate testing equipment under marine aerobic condition |
| CN112748239A (en) * | 2020-12-31 | 2021-05-04 | 莱茵技术（上海）有限公司 | Device and method for testing biodegradation capacity of biodegradable mulching film |
| CN112816628A (en) * | 2021-01-26 | 2021-05-18 | 济南迪科瑞仪器有限公司 | Full-automatic biological soil degradation testing system and application thereof |
-
2022
- 2022-01-26 CN CN202210094749.1A patent/CN114487371A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949911A (en) * | 2015-06-09 | 2015-09-30 | 深圳市计量质量检测研究院 | Material biological degradability detection evaluation equipment and method |
| CN206132546U (en) * | 2016-10-10 | 2017-04-26 | 南京沙夫特环境科技有限公司 | Detect quick biodegradability's of chemicals device |
| CN210419793U (en) * | 2019-04-26 | 2020-04-28 | 湖南锦佳环保科技有限公司 | Fertilizer compost fermenting installation |
| CN211235862U (en) * | 2019-12-30 | 2020-08-11 | 青岛爱星清洁用品有限公司 | Textile biodegradation rate testing equipment under marine aerobic condition |
| CN111499439A (en) * | 2020-06-08 | 2020-08-07 | 中农新科(苏州)有机循环研究院有限公司 | Miniature intelligent temperature-control composting reactor |
| CN112748239A (en) * | 2020-12-31 | 2021-05-04 | 莱茵技术（上海）有限公司 | Device and method for testing biodegradation capacity of biodegradable mulching film |
| CN112816628A (en) * | 2021-01-26 | 2021-05-18 | 济南迪科瑞仪器有限公司 | Full-automatic biological soil degradation testing system and application thereof |
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