CN110731157A - Treatment method of intelligent biogas slurry water fertilizer preparation system - Google Patents
Treatment method of intelligent biogas slurry water fertilizer preparation system Download PDFInfo
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- CN110731157A CN110731157A CN201910847331.1A CN201910847331A CN110731157A CN 110731157 A CN110731157 A CN 110731157A CN 201910847331 A CN201910847331 A CN 201910847331A CN 110731157 A CN110731157 A CN 110731157A
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- filter
- water
- biogas slurry
- fertilizer
- backwashing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000003337 fertilizer Substances 0.000 title claims abstract description 36
- 239000002002 slurry Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims description 7
- 238000011001 backwashing Methods 0.000 claims abstract description 25
- 239000004576 sand Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims description 14
- 239000010871 livestock manure Substances 0.000 claims description 5
- 210000003608 fece Anatomy 0.000 claims description 4
- 238000003973 irrigation Methods 0.000 claims description 4
- 230000002262 irrigation Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 4
- 150000002500 ions Chemical class 0.000 description 20
- 239000012528 membrane Substances 0.000 description 12
- 230000010354 integration Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910021642 ultra pure water Inorganic materials 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 229930192334 Auxin Natural products 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 102000004157 Hydrolases Human genes 0.000 description 1
- 108090000604 Hydrolases Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 239000002363 auxin Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- SEOVTRFCIGRIMH-UHFFFAOYSA-N indole-3-acetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CNC2=C1 SEOVTRFCIGRIMH-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/04—Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids
- A01C23/042—Adding fertiliser to watering systems
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C23/00—Distributing devices specially adapted for liquid manure or other fertilising liquid, including ammonia, e.g. transport tanks or sprinkling wagons
- A01C23/007—Metering or regulating systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Abstract
The invention relates to a intelligent biogas slurry water fertilizer distribution system treatment method which comprises the steps of S1, connecting a centrifugal filter, a sand filter and a laminated filter in sequence, connecting a biogas slurry tank between the sand filter and the laminated filter, installing a fertilizer pump at the side of the biogas slurry tank , arranging a clean water pump at the other side of the centrifugal filter and connecting a clean water source, S2, arranging pressure difference switches on the sand filter and the laminated filter and connecting water inlet and outlet pipes of the filters, S3, automatically backwashing if the actual pressure difference value of the water inlet and outlet pipes reaches the pressure difference set inside the pressure difference switches, S4, setting the running time and the single backwashing time on a control terminal touch screen, starting backwashing by any triggers, S5, manually setting the running time and the single backwashing time, controlling a terminal program to control the sand filter and the laminated filter to carry out full-automatic backwashing and running, and metering water and fertilizer.
Description
Technical Field
The invention belongs to the technical field of agricultural production, and particularly relates to a treatment method of an intelligent biogas slurry water fertilizer preparation system.
Background
According to the measurement and calculation, when reaching 2015, the anaerobic fermentation process of the livestock manure is supported by central and local investment to build various biogas projects to reach 110975 places in China, 7100 ten thousand tons of biogas manure can be produced every year, and a large amount of biogas slurry is not treated in time and becomes a new pollution source.
The biogas slurry has the advantages that the biogas slurry retains nutrient elements such as nitrogen, phosphorus, potassium and the like required by the growth of crops, also retains abundant amino acids, B vitamins, various hydrolases, certain auxin and substances or factors having the effect of inhibiting plant diseases and insect pests, is high-quality organic fertilizers, can be used for organic vegetable planting and field crop application, and reduces the application amount of chemical fertilizers.
The manual water and fertilizer mixing mode has low efficiency and high labor intensity, and can not meet the fertilization requirement of facility agriculture.
Other technical disadvantages include: low integration level, inconvenient maintenance (incapable of back washing), incapability of controlling flow (water and fertilizer output flow) and poor system stability.
The existing Chinese patent document CN109566037A intelligent biogas slurry water and fertilizer integrated pump station and the working method thereof adopt a vacuum drinking water pump, and have the following defects:
(1) the restriction is installed: the drinking water tank is preferably arranged at the place closest to a water source, and the length of the water suction pipe of the water tank is reduced.
(2) The operation has limitation that in the use process, when the water level in the tank body is reduced after the pumping of the water pump is finished every time and the vacuum degree required by starting the water pump for times cannot be reached, water needs to be added manually.
(3) Easy to damage: when pumping sewage, fine impurities contained in water easily enter the pump body in the pumping process, and cause abrasion and even damage to water pump blades, pipelines and the like.
The invention aims to overcome the defects, provides biogas slurry water fertilizer integration systems which are high in integration level, easy to maintain, controllable in flow and stable in operation, can efficiently realize the integration of the biogas slurry water fertilizer , and improves the irrigation quality and efficiency.
Disclosure of Invention
The invention aims to solve the problems and provides intelligent biogas slurry water fertilizer preparation system treatment methods which are high in integration level, easy to maintain, simple to operate and controllable in flow.
In order to achieve the purpose, the invention provides the following technical scheme:
the treatment method of the intelligent biogas slurry water fertilizer preparation system comprises the following steps:
s1, sequentially connecting the centrifugal filter, the sand filter and the laminated filter, connecting a biogas slurry tank between the sand filter and the laminated filter, arranging a fertilizer pump at the side of the biogas slurry tank , arranging a clean water pump at the side of the centrifugal filter far away from the sand filter , and connecting the clean water pump with a clean water source;
s2, arranging pressure difference switches on the sand filter and the laminated filter, and connecting the water inlet pipe and the water outlet pipe of each filter;
s3: if the actual differential pressure value of the water inlet and outlet pipeline reaches the differential pressure difference set in the differential pressure switch, starting automatic backwashing;
s4: the method comprises the following steps that running time and single backwashing time are set on a touch screen of a control terminal, and backwashing is started no matter which one of the running time and the running time is triggered first;
s5: the running time and the single backwashing time are manually set, and the program of the control terminal can control the sandstone filter and the laminated filter to carry out full-automatic backwashing and running;
s6: the biogas slurry pipeline and the clear water pipeline are respectively provided with a flowmeter for measuring the flow of the liquid manure.
And , arranging two frequency conversion controllers in the control terminal, and respectively controlling the rotating speed of the motors corresponding to the clean water pump and the fertilizer application pump so as to adjust the water and fertilizer output flow.
, a pressure transmitter, a conductivity analyzer and a PH analyzer are further arranged on the side of the laminated filter , and the clear water pump realizes the constant-pressure variable-frequency water supply of the whole drip irrigation system through the clear water pump variable-frequency controller of the control terminal according to the pressure transmitter on the pipeline.
, the laminated filter and the sand filter adopt full-automatic back washing filters.
, a sand outlet is arranged on the side of the centrifugal filter .
Compared with the prior art, the invention has the beneficial effects that:
1) the integrated level is high, adopts the mill prefabrication, and the on-the-spot direct butt joint is simple and convenient to install.
2) The full-automatic backwashing filter is adopted, the filter is automatically backwashed by using raw water, the maintenance frequency is low, and the operation is simple.
3) The biogas slurry pipeline and the clear water pipeline are respectively provided with a flowmeter for metering the flow of the water and the fertilizer; the rotating speeds of motors of the clean water pump and the fertilizer application pump are adjusted through the variable frequency controller, so that the water-fertilizer ratio is adjusted, and the requirements of plants on water and fertilizer are met.
4) The biogas slurry pipeline and the clear water pipeline respectively use independent pumps, so that the operation is stable.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the description of the embodiment will be briefly introduced below, and obviously, the drawings in the following description are only for more clearly illustrating the embodiment of the present invention or the technical solution in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a process flow diagram of the present invention;
in the figure: 1-a biogas liquid tank, 2-a centrifugal filter, 3-a sand filter, 4-a laminated filter, 6-a fertilizing pump, 7-a clean water pump, 8-a clean water source, 9-a Hall flowmeter, 10-a pressure transmitter, 11-a conductivity analyzer, 12-a PH analyzer, 13-an electromagnetic flowmeter and 21-a sand discharge port.
Detailed Description
In order to make those skilled in the art better understand that the technical solution of the present invention can be implemented, the present invention is further illustrated in with reference to the following specific examples, which are only illustrative and not limiting.
The treatment method of the kinds of intelligent biogas slurry water fertilizer preparation systems shown in figure 1 comprises the following steps:
s1, sequentially connecting the centrifugal filter 2, the sand filter 3 and the laminated filter 4, connecting a biogas slurry tank 1 between the sand filter 3 and the laminated filter 4, arranging a fertilizer pump 6 at the side of the biogas slurry tank 1 , arranging a clean water pump 7 at the side of the centrifugal filter 2 far away from the sand filter 3 , and connecting the clean water pump 7 with a clean water source 8;
s2, arranging differential pressure switches (not shown in the figure) on the sand filter 3 and the laminated filter 4, and connecting the water inlet pipe and the water outlet pipe of each filter;
s3: if the actual differential pressure value of the water inlet and outlet pipeline reaches the differential pressure difference set in the differential pressure switch, starting automatic backwashing;
s4: the method comprises the following steps that running time and single backwashing time are set on a touch screen of a control terminal, and backwashing is started no matter which one of the running time and the running time is triggered first;
s5: the running time and the single backwashing time are manually set, and the program of the control terminal can control the sandstone filter and the laminated filter to carry out full-automatic backwashing and running;
s6: the biogas slurry pipeline and the clear water pipeline are respectively provided with a flowmeter for measuring the flow of the liquid manure.
The biogas slurry pipeline is provided with a Hall flowmeter 9, the clear water pipeline is provided with an electromagnetic flowmeter 13, and the two flowmeters respectively measure the fertilizing amount and the clear water amount.
Two frequency conversion controllers are arranged in the control terminal, and are used for respectively controlling the rotating speed of the motors corresponding to the clean water pump 7 and the fertilizer application pump 6, so that the output flow of the water and the fertilizer is adjusted.
The side of the laminated filter 4 is also provided with a pressure transmitter 10, a conductivity analyzer 11 and a PH analyzer 12, and the clear water pump 7 realizes the constant-pressure variable-frequency water supply of the whole drip irrigation system through the frequency-variable controller of the clear water pump 7 at the control terminal according to the pressure transmitter 10 on the pipeline.
The laminated filter 4 is composed of disks with grooves on both sides, the crossing point formed by the edges of the grooves can intercept the solid in water, and the laminated filter 4 has the functions of surface interception and deep coagulation, thus greatly improving the filtering effect.
The sand filter 3 and the laminated filter 4 both adopt full-automatic back-flushing filters.
The side of the centrifugal filter 2 is provided with a sand discharge port 21, so that impurities can be conveniently and timely discharged, the biogas slurry tank 1, the centrifugal filter 2, the sand filter 3 and the laminated filter 4 are prefabricated in a factory and directly connected through pipelines on site, and the operation is simple, convenient and fast.
The conductivity analyzer 11 has the features of Chinese display, Chinese menu operation, full intelligence, multiple functions, high measurement performance, strong environmental adaptability, etc. the conductivity of -like liquid may be measured by using electrodes with the secondary meter constant of 1.0 or 10, and the conductivity of pure water or ultrapure water may be measured accurately by using electrodes with the secondary meter constant of 0.1 or 0.01.
The PH analyzer 12 is a highly intelligent on-line continuous monitor, consists of a sensor and a secondary meter, is provided with a pure water electrode and an ultra-pure water electrode, and is suitable for water with the conductivity less than 3 mu s/cm. The working principle is as follows:
the pH analyzer 12 mainly adopts an ion selective electrode measurement method to realize accurate detection, and electrodes on the analyzer are pH and reference electrodes, the pH electrode is provided with a ion selective membrane which can react with corresponding ions in a detected sample, the membrane is an ion exchanger and reacts with ion charges to change the membrane potential, so that the potential between a liquid sample and the membrane can be detected, the two detected potential difference values on the two sides of the membrane can generate current, and the sample, the reference electrode and the reference electrode liquid form a loop side, a membrane, an internal electrode liquid and an internal electrode on the other side.
The difference in ion concentration between the internal electrode liquid and the sample will create an electrochemical voltage across the membrane of the working electrode, which is directed through the highly conductive internal electrode to the amplifier, and the reference electrode to the point of the amplifier as well, a calibration curve is obtained by testing standard solutions of precisely known ion concentration, thereby measuring the ion concentration in the sample.
When the ions to be measured in the solution contact the electrode, the ions migrate in the water-containing layer of the ion selection electrode substrate, the charges of the migrated ions change and have electric potential, so that the electric potential between the membrane surfaces changes, potential differences are generated between the measuring electrode and the reference electrode, the ion selection type electrode contains electrode liquid with known ion concentration, the electrode liquid permeates through the ion selection electrode membrane and the corresponding ions in the sample, so that membrane potential is generated on two sides of the membrane, the ion concentration in the sample is not used, the magnitude of the generated potential signal is different, and the ion concentration in the sample can be measured by measuring the magnitude of the potential signal.
The difference in ion concentration between the liquid in the electrode and the sample causes the electrode membrane to develop an electrochemical potential which can be extracted from the electrode and fed to the input of an amplifier, another inputs of which are connected to a reference electrode and grounded, and the electrode voltage can be further amplified to form a voltage difference which determines the ion concentration of the sample under test.
The control terminal adopts a western sub S7-200 editable program controller (PLC), a touch screen is arranged on the surface of the control terminal, a communication port of the PLC is connected with the communication port of the touch screen through a communication cable, the multi-path input end of the PLC is respectively connected with the outputs of a pressure transmitter 10, a conductivity analyzer 11, a PH analyzer 12, an electromagnetic flowmeter 13 and a Hall flowmeter 9, the multi-path output ports of the PLC are respectively connected with a sandstone filter 3, a lamination filter 4, a fertilizing pump 6 and a clean water pump 7 which correspond to the controllers, PLC data are transmitted to a cloud platform management system through a mobile communication network or a wireless network, the intelligent control system is a intelligent control system which is jointly controlled by the PLC, a field touch screen and a cloud platform, equipment and the like, can realize automatic operation according to control conditions edited in advance, can be manually controlled on site according to user requirements, can also be remotely monitored and operated by the cloud platform, and can be remotely monitored and operated by the cloud platform at client sides such as the PC and the mobile equipment, and the like, and the touch screen information.
Compared with the prior art, the invention has the following advantages:
1) the integrated level is high, adopts the mill prefabrication, and the on-the-spot direct butt joint is simple and convenient to install.
2) The full-automatic backwashing filter is adopted, the filter is automatically backwashed by using raw water, the maintenance frequency is low, and the operation is simple.
3) The biogas slurry pipeline and the clear water pipeline are respectively provided with a flowmeter for metering the flow of the water and the fertilizer; the motor rotating speeds of the clean water pump 7 and the fertilizing pump 6 are adjusted through the variable frequency controller, so that the water-fertilizer ratio is adjusted, and the water-fertilizer requirements of plants are met.
4) The biogas slurry pipeline and the clear water pipeline respectively use independent pumps, so that the operation is stable.
The details of the present invention not described in detail are prior art.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1, kinds of intelligent natural pond liquid water join in marriage fertile system processing method, its characterized in that includes the following step:
s1, sequentially connecting the centrifugal filter (2), the sand filter (3) and the laminated filter (4), connecting a biogas slurry tank (1) between the sand filter (3) and the laminated filter (4), arranging a fertilizer pump (6) at the side of the biogas slurry tank (1), arranging a clean water pump (7) at the side of the centrifugal filter (2) far away from the sand filter (3), and connecting the clean water pump (7) with a clean water source (8);
s2, arranging differential pressure switches on the sand filter (3) and the laminated filter (4) and connecting the water inlet and outlet pipes of the filters;
s3: if the actual differential pressure value of the water inlet and outlet pipeline reaches the differential pressure difference set in the differential pressure switch, starting automatic backwashing;
s4: the method comprises the following steps that running time and single backwashing time are set on a touch screen of a control terminal, and backwashing is started no matter which one of the running time and the set value of a differential pressure switch is triggered first;
s5: the running time and the single backwashing time are manually set, and the program of the control terminal can control the sandstone filter 3 and the laminated filter 4 to carry out full-automatic backwashing and running;
s6: the biogas slurry pipeline and the clear water pipeline are respectively provided with a flowmeter for measuring the flow of the liquid manure.
2. The processing method for intelligent biogas slurry and water fertilizer mixing system according to claim 1, wherein two frequency conversion controllers are provided in the control terminal to control the rotation speed of motors corresponding to the clean water pump (7) and the fertilizer application pump (6) respectively, so as to adjust the outflow rate of the liquid fertilizer.
3. The intelligent biogas slurry water fertilizer distribution system treatment method according to claim 1, wherein a pressure transmitter (10), a conductivity analyzer (11) and a pH analyzer (12) are further arranged on the side of the laminated filter (4), and the clear water pump (7) realizes constant-pressure variable-frequency water supply of the whole drip irrigation system through a control terminal of a clear water pump (7) variable-frequency controller according to the pressure transmitter (10) on a pipeline.
4. The kinds of intelligent biogas slurry water fertilizer preparation system processing method according to claim 1, wherein the sand filter (3) and the laminated filter (4) both adopt full-automatic backwashing filters.
5. The intelligent biogas slurry and water fertilizer distribution system processing method as claimed in any of claims 1-4, wherein a sand discharge port (21) is arranged at side of the centrifugal filter (2).
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114402968A (en) * | 2022-01-21 | 2022-04-29 | 中国农业科学院农业环境与可持续发展研究所 | Biogas slurry irrigation and fertilization system and application thereof |
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