CN108557996A - A kind of anaerobic reaction system with biogas air supporting, agitating function - Google Patents
A kind of anaerobic reaction system with biogas air supporting, agitating function Download PDFInfo
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- CN108557996A CN108557996A CN201810182130.XA CN201810182130A CN108557996A CN 108557996 A CN108557996 A CN 108557996A CN 201810182130 A CN201810182130 A CN 201810182130A CN 108557996 A CN108557996 A CN 108557996A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 239000010802 sludge Substances 0.000 claims abstract description 22
- 238000010992 reflux Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 5
- 239000008187 granular material Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/36—Means for collection or storage of gas; Gas holders
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/24—Recirculation of gas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/40—Means for regulation, monitoring, measurement or control, e.g. flow regulation of pressure
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/18—Gas cleaning, e.g. scrubbers; Separation of different gases
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Clinical Laboratory Science (AREA)
- General Chemical & Material Sciences (AREA)
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The anaerobic reaction system with biogas air supporting, agitating function that the invention discloses a kind of, anaerobic reactor including sealing, anaerobic reactor includes the gas collection area arranged up and down and sewage diposal area, the lower part of sewage diposal area is equipped with water distributor and biogas stirs release device, water distributor is connected to water inlet pipe, the top of sewage diposal area is equipped with biogas air supporting release device, and anaerobic reactor is located at the side wall above biogas air supporting release device and is equipped with water outlet；Gas collection area is connected to biogas storage tank through pipeline, biogas storage tank is connected to biogas compressor through pipeline, biogas compressor surge tank after pipeline is connected to compressor, surge tank is connected to biogas stirring release device and biogas air supporting release device through pipeline after compressor, air supporting slime layer is formed on the water surface of sewage diposal area, air supporting slime layer is connected to sewage diposal area lower part through sludge return pipe, and sludge return pipe is equipped with sludge reflux pump.Anaerobic reaction system provided by the invention, reduces capital expenditure expense.
Description
Technical field
The present invention relates to technical field of environment protection equipment, more particularly to a kind of to have biogas air supporting, the anaerobism of agitating function anti-
Answer system.
Background technology
Currently, for high concentrated organic wastewater, all need to carry out again after Anaerobic Treatment removes overwhelming majority pollution follow-up
Processing.It is to be thoroughly mixed type that anaerobic activated sludge method reactor, which substantially has two classes, one kind, i.e., sludge, waste water are complete in reactor
It mixes, pollutant concentration is identical everywhere in reactor, and inlet and outlet solid content is also identical, and reactor mixing is using cycle
Pump Hydraulic Circulation, blender mechanical cycles and biogas stirring etc..Water outlet need using precipitation, filtering, centrifuge etc. measures into
Row is separated by solid-liquid separation.Another kind of is plug flow reactor, and reactor lower part sludge, waste water mixing are preferable, in, top setting three-phase
Separator, sludge, waste water and biogas are detached, and exit solid content is much smaller than entrance, and water outlet is not required to be separated by solid-liquid separation
Subsequent processing can be entered.
Complete needs to stir and goes out water solid and liquid separating device, and equipment investment is higher, and operation, operational management are multiple
It is miscellaneous.Plug flow reactor needs to increase three phase separation equipment, and investment is very high；Muddy water mixed effect is not so good as complete.
Invention content
The anaerobic reaction system with biogas air supporting, agitating function that it is an object of the present invention to provide a kind of, is carried out using biogas
Air supporting and stirring reduce the processing cost of waste water.
Based on the above issues, technical solution provided by the invention is：
A kind of anaerobic reaction system with biogas air supporting, agitating function comprising the anaerobic reactor of sealing, it is described to detest
Oxygen reactor includes the gas collection area arranged up and down and sewage diposal area, and the lower part of the sewage diposal area is equipped with water distributor and biogas
Release device is stirred, the water distributor is connected to water inlet pipe, and the top of the sewage diposal area is equipped with biogas air supporting release device,
The anaerobic reactor is located at the side wall above the biogas air supporting release device and is equipped with water outlet；
The gas collection area is connected to biogas storage tank through pipeline, and the biogas storage tank is connected to Marsh gas compression through pipeline
Machine, biogas compressor surge tank after pipeline is connected to compressor, surge tank is connected to institute through pipeline after the compressor
Biogas stirring release device and the biogas air supporting release device are stated, air supporting body refuse is formed on the water surface of the sewage diposal area
Layer, the air supporting slime layer are connected to the sewage diposal area lower part through sludge return pipe, are set on the sludge return pipe
There is sludge reflux pump.
In some embodiments wherein, the pipeline between the anaerobic reactor and the biogas storage tank is equipped with
Biogas filter for removing granule foreign in biogas, moisture.
In some embodiments wherein, the pipeline between the biogas filter and the biogas storage tank is equipped with
First water seal switchs, and the pipeline between the biogas storage tank and the biogas compressor is switched equipped with the second water seal.
In some embodiments wherein, connect on the pipeline between the second water seal switch and the biogas compressor
It is connected to biogas branch pipe, methane conveying is to later use.
In some embodiments wherein, the biogas stirring release device includes several biogas stirring release head,
The biogas air supporting release device includes several biogas air supporting release heads.
In some embodiments wherein, the bubble of the biogas air supporting release head release, which is less than biogas stirring, to be released
Put the bubble of head release.
In some embodiments wherein, the top of the anaerobic reactor is equipped with positive/negative pressure protector.
In some embodiments wherein, valve and flowmeter are equipped on biogas stirring pipe road.
In some embodiments wherein, first pressure gauge is equipped on biogas stirring pipe road.
In some embodiments wherein, set on the pipeline between the biogas storage tank and second water seal switch
There is second pressure gauge.
Compared with prior art, it is an advantage of the invention that：
1, it saves the agitating device of complete setting and goes out water solid and liquid separating device, eliminate pulling flow type reaction
The three phase separator of device setting, reduces investment and operation, the operational and administrative expenses of reaction system；
2, sludge retention time is extended by most sludge retentions in anaerobic reactor using biogas air supporting, carried
High anaerobic reaction efficiency reduces reactor volume；
3, there is biogas stirring and the mixing of air supporting solid-liquid, separating measure so that anaerobic reaction rate higher, reaction are more thorough
Bottom, so as to shorten hydraulic detention time；
4, the space of air supporting and the stirring totally-enclosed all in anaerobic reactor carries out, and odorless loss improves Anaerobic Treatment
Environment.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, drawings in the following description are only some embodiments of the invention, for the common skill in this field
For art personnel, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of structural schematic diagram with biogas air supporting, the anaerobic reaction system embodiment of agitating function of the present invention；
Wherein：
1, anaerobic reactor；1-1, gas collection area；1-2, sewage diposal area；1-3, water inlet pipe；1-4, water outlet；
2, biogas filter；
3, the first water seal switchs；
4, biogas storage tank；
5, the second water seal switchs；
6, biogas compressor；
7, surge tank after compressor；
8, biogas stirs release device；
9, biogas air supporting release device；
10, water distributor；
11, air supporting slime layer；
12, sludge return pipe；
13, sludge reflux pump；
14, flowmeter；
15, valve；
16, first pressure gauge；
17, second pressure gauge；
18, positive/negative pressure protector；
19, biogas branch pipe.
Specific implementation mode
Said program is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The present invention and be not limited to limit the scope of the invention.The implementation condition used in embodiment can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Referring to Fig. 1, it is the structural schematic diagram of the embodiment of the present invention, provides and a kind of detest with biogas air supporting, agitating function
Oxygen reaction system, includes the anaerobic reactor 1 of sealing, and anaerobic reactor 1 includes the gas collection area 1-1 arranged up and down and sewage disposal
Area 1-2 is equipped with water distributor 10 and biogas in the sewage diposal area lower parts 1-2 and stirs release device 8, wherein water distributor 10 be connected into
The top of water pipe 1-3, sewage diposal area 1-2 are equipped with biogas air supporting release device 9, and anaerobic reactor 1 is located at biogas air supporting release
The side wall of 9 top of device is equipped with water outlet 1-4.
Gas collection area 1-1 is connected to biogas storage tank 4 through pipeline, and biogas storage tank 4 is connected to biogas compressor 6 through pipeline,
The surge tank 7 after pipeline is connected to compressor of biogas compressor 6, surge tank 7 is connected to biogas stirring through pipeline and releases after compressor
Device 8 and biogas air supporting release device 9 are put, reaction solution in anaerobic reactor 1 is mixed by discharging compressed biogas,
The separation of solid and liquid on anaerobic reactor sewage diposal area top, the natural pond that biogas air supporting release device 9 discharges are realized by biogas air supporting
Gas forms fine minute bubbles in waste water, is come into full contact with the suspended matter in waste water, and the suspended matter in the waste water for being is adhered to gas
It on bubble, and climbs up on top of the water with bubble, forms air supporting slime layer 11, air supporting slime layer on the water surface of sewage diposal area 1-2
11 are connected to the sewage diposal area lower parts 1-2 through sludge return pipe 12, and sludge reflux pump 13 is equipped on sludge return pipe 12,
Air supporting body refuse is back to the bottom of anaerobic reactor 1 through sludge reflux pump 13, reaction is participated in again, when increasing sludge retention
Between, anaerobic reaction efficiency is improved, through treated the waste water of anaerobic reactor 1 from top water outlet 1-4 from flowing to subsequent processing
Unit.
In order to remove the granule foreign and moisture in biogas, in the pipeline between anaerobic reactor 1 and biogas storage tank 4
It is equipped with biogas filter 2, which is the prior art, and the present invention repeats no more.
In order to improve the security performance of anaerobic reaction system, on the pipeline between biogas filter 2 and biogas storage tank 4
Equipped with the first water seal switch 3, it is equipped with the second water seal switch 5 on the pipeline between biogas storage tank 4 and biogas compressor 6, prevents
It only burns, explode and spread along pipeline.
It in the present embodiment, is used to stir after the biogas part compression in biogas storage tank 4, air supporting, another part is used for
Other utilization ways are connected with biogas branch pipe 19 on the pipeline between the second water seal switch 5 and biogas compressor 6, for defeated
It is other purposes to send biogas.
In the present embodiment, it includes that several biogas stir release head, biogas air supporting release device that biogas, which stirs release device 8,
9 include several biogas air supporting release heads, it is preferred that the bubble of biogas air supporting release head release, which is less than biogas stirring release head, to be released
The bubble put.
It is equipped with positive/negative pressure protector 18 at the top of anaerobic reactor 1, prevent whole system superpressure or generates negative pressure, it is positive and negative
Pressure protector 18 is the prior art, and the present invention repeats no more.
It is equipped with valve 15 and flowmeter 14 on biogas stirring pipe road, stirring tolerance can be adjusted as needed.
For the ease of the air pressure on monitoring pipeline, it is equipped with first pressure gauge 16 on biogas stirring pipe road, is stored in biogas
Pipeline between tank 4 and the second water seal switch 5 is equipped with second pressure gauge 17.
It is provided with valve on pipeline before and after surge tank 7 after biogas compressor 6, compressor, to control piper gas
Flow.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Member cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent transformation or modification that Spirit Essence is done, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of anaerobic reaction system with biogas air supporting, agitating function, it is characterised in that：Anaerobic reactor including sealing
(1), the anaerobic reactor (1) includes the gas collection area (1-1) arranged up and down and sewage diposal area (1-2), the sewage disposal
The lower part in area (1-2) is equipped with water distributor (10) and biogas stirring release device (8), and the water distributor (10) is connected to water inlet pipe
The top of (1-3), the sewage diposal area (1-2) are equipped with biogas air supporting release device (9), and the anaerobic reactor (1) is located at
Side wall above the biogas air supporting release device (9) is equipped with water outlet (1-4)；
The gas collection area (1-1) is connected to biogas storage tank (4) through pipeline, and the biogas storage tank (4) is connected to natural pond through pipeline
Air compressor (6), biogas compressor (6) surge tank (7) after pipeline is connected to compressor, surge tank after the compressor
(7) the biogas stirring release device (8) and the biogas air supporting release device (9), the sewage disposal are connected to through pipeline
Air supporting slime layer (11) is formed on the water surface in area (1-2), the air supporting slime layer (11) is connected to through sludge return pipe (12)
Sewage diposal area (1-2) lower part, the sludge return pipe (12) are equipped with sludge reflux pump (13).
2. the anaerobic reaction system according to claim 1 with biogas air supporting, agitating function, it is characterised in that：It is described
Pipeline between anaerobic reactor (1) and the biogas storage tank (4) is equipped with for removing granule foreign in biogas, moisture
Biogas filter (2).
3. the anaerobic reaction system according to claim 2 with biogas air supporting, agitating function, it is characterised in that：It is described
Pipeline between biogas filter (2) and the biogas storage tank (4) is equipped with the first water seal and switchs (3), the biogas storage
Pipeline between tank (4) and the biogas compressor (6) is equipped with the second water seal and switchs (5).
4. the anaerobic reaction system according to claim 3 with biogas air supporting, agitating function, it is characterised in that：It is described
Second water seal switchs and is connected with biogas branch pipe (19) on the pipeline between (5) and the biogas compressor (6), methane conveying to
Later use.
5. the anaerobic reaction system according to claim 1 or 2 or 3 or 4 with biogas air supporting, agitating function, feature
It is：The biogas stirring release device (8) includes several biogas stirring release head, the biogas air supporting release device (9)
Including several biogas air supporting release heads.
6. the anaerobic reaction system according to claim 5 with biogas air supporting, agitating function, it is characterised in that：It is described
The bubble of biogas air supporting release head release is less than the bubble of biogas stirring release head release.
7. the anaerobic reaction system according to claim 1 with biogas air supporting, agitating function, it is characterised in that：It is described
The top of anaerobic reactor (9) is equipped with positive/negative pressure protector (18).
8. the anaerobic reaction system according to claim 1 with biogas air supporting, agitating function, it is characterised in that：In natural pond
Gas agitating pipeline is equipped with valve (15) and flowmeter (14).
9. the anaerobic reaction system according to claim 8 with biogas air supporting, agitating function, it is characterised in that：In natural pond
Gas agitating pipeline is equipped with first pressure gauge (16).
10. the anaerobic reaction system according to claim 9 with biogas air supporting, agitating function, it is characterised in that：It is described
Pipeline between biogas storage tank (4) and second water seal switch (5) is equipped with second pressure gauge (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810182130.XA CN108557996A (en) | 2018-03-07 | 2018-03-07 | A kind of anaerobic reaction system with biogas air supporting, agitating function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255721A (en) * | 2019-07-15 | 2019-09-20 | 内蒙古华蒙科创环保科技工程有限公司 | A kind of unpowered biogas mixing plant |
| CN114031179A (en) * | 2021-11-12 | 2022-02-11 | 普拉克环保***（北京）有限公司 | Organic matter high load anaerobic digestion processing system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255721A (en) * | 2019-07-15 | 2019-09-20 | 内蒙古华蒙科创环保科技工程有限公司 | A kind of unpowered biogas mixing plant |
| CN114031179A (en) * | 2021-11-12 | 2022-02-11 | 普拉克环保***（北京）有限公司 | Organic matter high load anaerobic digestion processing system |
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