CN216663104U - Organic matter methane fermentation circulation control integrated system - Google Patents
Organic matter methane fermentation circulation control integrated system Download PDFInfo
- Publication number
- CN216663104U CN216663104U CN202220037984.0U CN202220037984U CN216663104U CN 216663104 U CN216663104 U CN 216663104U CN 202220037984 U CN202220037984 U CN 202220037984U CN 216663104 U CN216663104 U CN 216663104U
- Authority
- CN
- China
- Prior art keywords
- tank
- biogas
- organic matter
- methane
- fermentation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 238000000855 fermentation Methods 0.000 title claims abstract description 105
- 230000004151 fermentation Effects 0.000 title claims abstract description 103
- 239000005416 organic matter Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 238000004062 sedimentation Methods 0.000 claims abstract description 15
- 239000003337 fertilizer Substances 0.000 claims abstract description 13
- 239000003345 natural gas Substances 0.000 claims abstract description 11
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 6
- 230000023556 desulfurization Effects 0.000 claims abstract description 6
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 12
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 11
- 229930195729 fatty acid Natural products 0.000 claims description 11
- 239000000194 fatty acid Substances 0.000 claims description 11
- 150000004665 fatty acids Chemical class 0.000 claims description 11
- 241000894006 Bacteria Species 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 239000010802 sludge Substances 0.000 claims description 9
- 238000005273 aeration Methods 0.000 claims description 8
- 230000018044 dehydration Effects 0.000 claims description 8
- 238000006297 dehydration reaction Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 238000007791 dehumidification Methods 0.000 claims description 6
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 230000033116 oxidation-reduction process Effects 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 239000002921 fermentation waste Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000001546 nitrifying effect Effects 0.000 claims 1
- 239000010815 organic waste Substances 0.000 abstract description 17
- 239000000463 material Substances 0.000 description 12
- 239000002028 Biomass Substances 0.000 description 10
- 239000007787 solid Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 235000015097 nutrients Nutrition 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 241000108664 Nitrobacteria Species 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 239000010842 industrial wastewater Substances 0.000 description 2
- 239000010806 kitchen waste Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- FXYMWRNCRIDJOG-UHFFFAOYSA-N [C].[N].[P].[S] Chemical compound [C].[N].[P].[S] FXYMWRNCRIDJOG-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000010794 food waste Substances 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
An organic matter methane fermentation cycle control integrated system, wherein an organic matter adjusting tank is connected below a crusher; the organic matter adjusting tank is connected with the water adding adjusting tank; the upper and lower paths of the water adding adjusting tank are connected with the biogas fermentation tank; two paths of the biogas fermentation tank are connected with the biogas liquid tank, and one path is connected with the desulfurization device; the desulfurization device is connected with the natural gas storage tank; the biogas liquid box is connected with the aerobic treatment tank; the aerobic treatment tank is connected with the sedimentation tank, and the sedimentation tank is connected with the liquid fertilizer tank; the settling tank is connected with an inlet of the biogas liquid tank; the water adding adjusting tank and the biogas fermentation tank are respectively connected with the heat adjusting and heat preserving device in two ways; two paths of the thermal regulation and insulation device are connected with a rainwater collecting pipe; the settling tank and the biogas liquid tank are provided with a return pipe, and the biogas liquid tank, the biogas fermentation tank and the water adding adjusting tank are provided with a return pipe therebetween. The device is suitable for all sizes (according to the requirement of organic waste treatment capacity) and all occasions (fixed or movable processors on land and all-cycle non-discharge organic waste treatment all-in-one machines used on various ships).
Description
Technical Field
The utility model belongs to the technical field of methane fermentation, and particularly relates to an organic matter methane fermentation circulation control integrated system.
Background
Methane fermentation treatment has been attracting attention and put into practical use for the treatment of industrial waste water such as food industrial waste water, organic waste such as organic sludge and kitchen waste. The methane fermentation treatment is more energy-saving than the activated sludge treatment, and can produce methane gas as biogas in the form of energy.
As examples of methane fermentation treatment, treatment by an anaerobic digestion method and a UASB (upflow anaerobic sludge blanket) method have been widely used. In the methane fermentation treatment by the UASB method, organic waste is decomposed in two stages to form methane gas, water, and carbon dioxide gas. That is, the organic waste is decomposed into lower fatty acids such as acetic acid in the acid fermentation process, and then into methane gas by the action of methane bacteria.
Wet methane fermentation (wet methane fermentation) processes, in which solid biomass mixed with water is anaerobically fermented, are widely used as a methane fermentation method of biomass under anaerobic conditions.
However, there is a disadvantage in such wet methane fermentation process that the equipment cost is high, because about 15 to 20 volumes of fermenters are necessary per volume of starting biomass material, thus increasing the capacity of the equipment.
This disadvantage is eliminated by the dry methane fermentation (dry methane fermentation) process, in which solid biomass material is subjected to methane fermentation with the aid of anaerobic bacteria. According to this method, the volume of the fermenter required for processing 1 volume of the starting material is about 1.5 times the volume, so that it is possible to minimize the facility to some extent. However, there are also disadvantages: it takes a long time to vent the air present in the starting solid biomass material to maintain the anaerobic conditions necessary for methane fermentation. If moisture-rich trash or food waste remains are present in the solid biomass material at the same time, the facultative anaerobic bacteria will self-multiply in a short time while consuming the oxygen in the air present in the solid material, thereby rapidly accelerating the decomposition with the help of the facultative anaerobic bacteria to produce large amounts of organic acids, shifting the pH to the acidic range. For these reasons, the proliferation of methanogens that grow in the alkaline range is inhibited or terminated, resulting in the formation of biogas that takes at least about one year.
With respect to dry methane fermentation processes, the prior art includes: a process for the efficient production of methane, wherein the apparatus is adapted to the composition of the biomass material and to the reaction conditions, said process comprising mixing solid secondary material with granular or slurry organic waste material during methane fermentation of the biomass starting material under anaerobic conditions to produce a waste mixture having gas permeability and fluidity, and thereafter subjecting the mixture to anaerobic fermentation; a process wherein the C/N ratio of organic waste material is adjusted to 20 to 250; a method wherein organic waste material is mixed with inorganic porous material and the mixture is introduced into a methane fermenter; and a method in which organic waste material is mixed with carbide (carbide), and the mixture is subjected to methane fermentation.
However, in all these processes and methods, the biomass starting material is mixed with the separate secondary material and then the fermentation conditions are adjusted, so that the costs are inevitably increased in order to obtain the secondary material and increase the costs of the mixing step. In addition, it is difficult to completely control the facultative anaerobic conditions or semi-aerobic conditions before the methane fermentation, and it is also difficult to control the absolute anaerobic conditions at the time of methane fermentation.
However, the above methane fermentation equipment is complex in equipment and large in system, and cannot be effectively used if applied to a mobile device.
Disclosure of Invention
The utility model aims to provide an organic matter methane fermentation circulation control integrated system which is suitable for various sizes (according to the requirement of organic waste treatment capacity) and various occasions (land fixed or movable processors, and full-circulation non-discharge organic waste treatment integrated machines used on various ships).
In order to achieve the purpose, the utility model adopts the technical scheme that:
an organic matter methane fermentation circulation control integrated system comprises a crusher (1) and is characterized in that an organic matter adjusting tank (2) is connected below the crusher (1); the organic matter adjusting tank (2) is connected with the water adding adjusting tank (3); the upper and lower paths of the water adding adjusting tank (3) are connected with the biogas fermentation tank (4); two paths of the biogas fermentation tank (4) are connected with a biogas liquid tank (5), and one path is connected with a desulphurization device (6); the desulphurization device (6) is connected with a natural gas storage tank (7); the biogas liquid box (5) is connected with an aerobic treatment tank (8); the aerobic treatment tank (8) is connected with a sedimentation tank (10), and the sedimentation tank (10) is connected with a liquid fertilizer tank (9); the sedimentation tank (10) is connected with an inlet of the biogas liquid tank (5); the water adding adjusting tank (3) and the biogas fermentation tank (4) are respectively connected with a heat adjusting and heat preserving device (13) in two ways; the two paths of the thermal regulation and insulation device (13) are connected with a rainwater collecting pipe (14); a return pipe (15) is arranged between the settling tank (10) and the biogas slurry tank (5), and the return pipe (15) is arranged between the biogas slurry tank (5), the biogas fermentation tank (4) and the water adding adjusting tank (3);
a pipeline between the biogas fermentation tank (4) and the desulphurization device (6) is provided with a dehydration and drainage filtering process, and a dehydration device and a drainage filtering device are adopted;
a dehumidification process is arranged on a pipeline between the desulfurization device (6) and the natural gas storage tank (7), dehumidification equipment is adopted, and a flowmeter is also arranged on the pipeline;
the aerobic treatment tank (8) and the liquid fertilizer tank (9) are provided with micro-nano aeration devices (11), and an air inlet pipe of the micro-nano aeration device (11) of the liquid fertilizer tank (9) is connected with an ozone generator (12);
a stirring disc is arranged below the methane fermentation tank (4).
Pumps are arranged on the pipelines of the organic matter adjusting tank (2) and the water adding adjusting tank (3), the pipelines of the water adding adjusting tank (3) and the biogas fermentation tank (4), the pipelines of the sedimentation tank (10) and the biogas slurry tank (5) and the pipelines of the biogas fermentation tank (4) and the return pipe (15), and the pumps are controlled by electric control; valves are arranged on the machine adjusting tank (2), the water adding adjusting tank (3), the biogas fermentation tank (4), the biogas slurry tank (5), the desulphurization device (6), the natural gas storage tank (7) and the loop pipe (15), and the valves can be electric control valves; the return pipe (15) is provided with a tee joint, and the tee joint adopts a filtering tee joint.
And a flow meter or a weight meter is arranged at the inlet of the biogas fermentation tank (4) on one pipeline of the water adding adjusting tank (3) and the biogas fermentation tank (4).
Methane bacteria are added into the methane fermentation tank (4), and nitrobacteria are added into the aerobic treatment tank (8).
The stirring disc below the biogas fermentation tank (4) is connected with the blades through a rotating shaft, and the blades are plate-shaped blades and are of a four-blade type, a three-blade type or a two-blade type.
The device is characterized in that sensors are arranged in the machine adjusting tank (2), the water adding adjusting tank (3), the biogas fermentation tank (4) and the biogas liquid tank (5), and the sensors adopt a gas sensor, a temperature sensor, a PH value sensor, a vfa volatile fatty acid sensor on-line monitor and an ORP oxidation-reduction potential sensor.
The heat adjusting and insulating device (13) adopts photovoltaic, wind power, biogas fermentation waste heat or biogas purification to generate electricity to supply power.
The top of the biogas fermentation tank (4) is provided with two access holes, the middle of the biogas fermentation tank is provided with an emergency discharge biogas port, a biogas slurry outlet is arranged at a position slightly higher than the anaerobic sludge, and biogas slurry is periodically discharged and enters a biogas slurry tank.
The sensor, the electric control valve and the pump are controlled by a controller or a computer.
The utility model has the beneficial effects that:
the system is used for all sizes (according to the requirement of organic waste treatment capacity) and all occasions (fixed or movable processors on land and all-cycle non-discharge organic waste treatment all-in-one machines used on various ships).
Drawings
FIG. 1 is a schematic view of the present invention.
FIG. 2 is a process flow diagram of the present invention.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in figure 1, an organic matter methane fermentation circulation control integrated system comprises a crusher (1), and is characterized in that an organic matter adjusting tank (2) is connected below the crusher (1); the organic matter adjusting tank (2) is connected with the water adding adjusting tank (3); the upper and lower paths of the water adding adjusting tank (3) are connected with the biogas fermentation tank (4); two paths of the biogas fermentation tank (4) are connected with a biogas liquid tank (5), and one path is connected with a desulphurization device (6); the desulphurization device (6) is connected with a natural gas storage tank (7); the biogas liquid box (5) is connected with an aerobic treatment tank (8); the aerobic treatment tank (8) is connected with a sedimentation tank (10), and the sedimentation tank (10) is connected with a liquid fertilizer tank (9); the sedimentation tank (10) is connected with an inlet of the biogas liquid tank (5); the water adding adjusting tank (3) and the biogas fermentation tank (4) are respectively connected with a heat adjusting and heat preserving device (13) in two ways; the thermal regulation and heat preservation device (13) is connected with the rainwater collecting pipe (14) in two ways; a return pipe (15) is arranged between the settling tank (10) and the biogas slurry tank (5), and the return pipe (15) is arranged between the biogas slurry tank (5), the biogas fermentation tank (4) and the water adding adjusting tank (3);
a pipeline between the biogas fermentation tank (4) and the desulphurization device (6) is provided with a dehydration and drainage filtering process, and a dehydration device and a drainage filtering device are adopted;
a dehumidification process is arranged on a pipeline between the desulfurization device (6) and the natural gas storage tank (7), dehumidification equipment is adopted, and a flowmeter is also arranged on the pipeline;
the aerobic treatment tank (8) and the liquid fertilizer tank (9) are provided with micro-nano aeration devices (11), and an air inlet pipe of the micro-nano aeration device (11) of the liquid fertilizer tank (9) is connected with an ozone generator (12);
a stirring disc is arranged below the methane fermentation tank (4).
Pumps are arranged on the pipelines of the organic matter adjusting tank (2) and the water adding adjusting tank (3), the pipelines of the water adding adjusting tank (3) and the biogas fermentation tank (4), the pipelines of the settling tank (10) and the biogas slurry tank (5) and the pipelines of the biogas fermentation tank (4) and the return pipe (15), and the pumps are controlled by electric control; valves are arranged on the machine adjusting tank (2), the water adding adjusting tank (3), the biogas fermentation tank (4), the biogas slurry tank (5), the desulphurization device (6), the natural gas storage tank (7) and the loop pipe (15), and the valves can be electric control valves; the return pipe (15) is provided with a tee joint, and the tee joint adopts a filtering tee joint.
And a flow meter or a weight meter is arranged at the inlet of the biogas fermentation tank (4) on one pipeline of the water adding adjusting tank (3) and the biogas fermentation tank (4).
Methane bacteria are added into the methane fermentation tank (4), and nitrobacteria are added into the aerobic treatment tank (8).
The stirring disc below the biogas fermentation tank (4) is connected with the blades through a rotating shaft, and the blades are plate-shaped blades and are of a four-blade type, a three-blade type or a two-blade type.
The device is characterized in that sensors are arranged in the machine adjusting tank (2), the water adding adjusting tank (3), the biogas fermentation tank (4) and the biogas liquid tank (5), and the sensors adopt a gas sensor, a temperature sensor, a PH value sensor, a vfa volatile fatty acid sensor on-line monitor and an ORP oxidation-reduction potential sensor.
The heat adjusting and insulating device (13) adopts photovoltaic, wind power, biogas fermentation waste heat or biogas purification to generate electricity to supply power.
The top of the biogas fermentation tank (4) is provided with two access holes, the middle of the biogas fermentation tank is provided with an emergency discharge biogas port, a biogas slurry outlet is arranged at a position slightly higher than the anaerobic sludge, and biogas slurry is periodically discharged and enters a biogas slurry tank.
The sensor, the electric control valve and the pump are controlled by a controller or a computer.
As shown in fig. 2, a fermentation method for methane fermentation circulation control of organic matters is characterized by comprising the following steps:
1) collecting organic waste (kitchen waste, vinasse, brewing wastewater, human and animal excreta, fruit and vegetable residues, straws and other food processing residues and the like can be treated independently or in a mixing way) and quantitatively putting the organic waste into a two-stage crusher;
2) crushing the residue to be less than 2 mm, and then dropping the residue into an adjusting tank by gravity for homogenization;
3) because the general moisture content of organic waste is higher, flow into and add water adjusting tank after, according to nutrient composition (carbon nitrogen phosphorus sulphur) and moisture content calculation, introduce the heated reserve rainwater, after mixing according to appropriate proportion, organic waste residue: adding a proper amount of compound nutrient salt within the range of heating rainwater =1: 1-1: 10, controlling the salinity within the range of 0.1 ppm-100 ppm, carrying out hydrolytic acidification pretreatment in a water-adding adjusting tank, monitoring the temperature, the pH value and volatile fatty acid (lower fatty acid) data through three sensors of temperature, pH and VFA volatile fatty acid, and adjusting and controlling the temperature, the pH value and the volatile fatty acid (lower fatty acid) data as far as possible after pretreatment: t35-38 degrees; the pH value is 5.5-7.5; more than 1000ppm of VFA; and quantitatively pumping the biogas into a biogas fermentation tank by using a lifting pump;
4) before entering the inlet of the biogas fermentation tank, controlling the load entering the biogas fermentation tank through a flowmeter (or a weight meter);
5) a stirring disc is arranged right below an inlet of the biogas fermentation tank, so that a vertically falling pretreated solid-liquid mixture impacts blades to rotate the blades, and a fermented product is stirred, methane bacteria and temperature can be uniformly distributed in the biogas tank, the anaerobic treatment efficiency is improved, a temperature, pH, VFA and ORP oxidation-reduction potential sensor is arranged, and the environmental condition in the biogas fermentation tank is regulated and controlled to be 38-42 ℃ within a range suitable for generating methane; the pH value is 6.5-8.0; VFA 300ppm or less; ORP is below-200 mV;
6) more solid matters are precipitated below the inlet of the biogas fermentation tank, and the bottom of the part, namely the lower left corner of the biogas fermentation tank, can be provided with a return pipe (or a sludge return pump) to return sludge with more solid matters to a water adding adjusting tank;
7) the generated biogas enters a biogas purification line at the upper right corner, is subjected to dehydration and desulfurization (impurities such as hydrogen sulfide) procedures, is metered by a gas flowmeter and then enters a high-purity biogas (natural gas) storage tank, and can be used for recycling biomass energy sources such as domestic gas, power generation, steam production and the like;
8) the biogas slurry in the biogas slurry tank is periodically discharged into an aerobic treatment tank, a high-efficiency micro-nano aeration device is arranged in the aerobic tank, and high-efficiency nitrobacteria are used for efficiently and quickly converting the residual ammonia nitrogen in the biogas slurry into nitrate nitrogen, and the nitrate nitrogen is prepared into an organic liquid fertilizer after solid-liquid separation in a sedimentation tank and is reused for vegetable greenhouses on ships or agricultural facilities around the land; meanwhile, the gas emission of isothermal chambers such as methane and nitrous oxide is obviously reduced;
9) for redundant liquid fertilizer, a super oxidation tank can be arranged behind the aerobic tank and the sedimentation tank, a micro-nano aeration device and an ozone generator are used for generating a large amount of residual organic matters and nutrient substances in the hydroxyl radical oxidation liquid fertilizer, and the residual organic matters and the nutrient substances are decolorized, deodorized and sterilized at the same time, so that the residual organic matters and the nutrient substances can be discharged into the sea after reaching the first-level discharge standard;
10) the precipitated sludge in the sedimentation tank and the biogas slurry tank can be periodically pumped and refluxed to a water adding adjusting tank or a biogas fermentation tank for circular treatment so as to ensure that the organic solid slag of the treatment system is basically digested; if a small amount of residual biogas residues exist, the biogas residues can be used as matrix soil for a vegetable greenhouse after dehydration;
11) an outlet for undigested matters (biogas residues) such as scum is arranged at a position slightly lower than the liquid level of the biogas slurry, and the undigested matters are periodically discharged into a backflow pipeline and flow back into a crushing and regulating tank for circular treatment.
Examples
An absolute anaerobic environment; ORP is less than-200 mV, preferably less than-350 mV;
PH in the methane tank: 6.5-8.5 alkalescence; if the PH value is higher, the generation amount of H2S is less, and the quality of the biogas is high;
ammonia nitrogen: 3000-5000ppm or less, but the higher the ammonia nitrogen is, the activity of the methane bacteria is reduced; the activity of methane bacteria is highest when 200-400ppm is adopted; the higher the PH and the temperature are, the higher the ammonia nitrogen concentration is, and the PH value can be adjusted to be neutral;
fermentation load (monitoring VFA volatile fatty acid or lower fatty acid), wherein VFA is an intermediate product of low molecular weight organic matter, acid fermentation and methane gas formation, and the lower the VFA, the higher the anaerobic fermentation progress efficiency is; the higher the methane formation is hindered; the measurement was performed once a day. Good condition methane fermentor VFA =300PPM or less, taking care to adjust quickly especially when more propionic acid than acetic acid is present in the VFA. The VFA exceeding 1000PPM in the treatment of the excrement and the urine can be also stably treated (high ammonia nitrogen and high pH 8.5). If the methane fermentation exceeds the normal state, methane bacteria or a system needs to be added or replaced immediately.
Nutrient salt: the inorganic salt (metal) above 0.1 mg/l comprises calcium, magnesium, ferrum, nickel, cobalt, potassium, sodium, zinc, selenium, tungsten, molybdenum, copper, manganese, aluminum, etc.;
it is preferable to add a trace amount of inorganic salts to the front stage of the methane fermentation tank or the hydrolysis acidification tank. Or put into a regulating tank or an acid fermentation tank.
Adjusting the balance of nutrients in the adjusting tank: the reference ranges are: carbon (COD) 200-.
Claims (9)
1. An organic matter methane fermentation circulation control integrated system comprises a crusher (1) and is characterized in that an organic matter adjusting tank (2) is connected below the crusher (1); the organic matter adjusting tank (2) is connected with the water adding adjusting tank (3); the upper and lower paths of the water adding adjusting tank (3) are connected with the biogas fermentation tank (4); two paths of the biogas fermentation tank (4) are connected with a biogas liquid tank (5), and one path is connected with a desulphurization device (6); the desulphurization device (6) is connected with a natural gas storage tank (7); the biogas liquid box (5) is connected with an aerobic treatment tank (8); the aerobic treatment tank (8) is connected with a sedimentation tank (10), and the sedimentation tank (10) is connected with a liquid fertilizer tank (9); the sedimentation tank (10) is connected with an inlet of the biogas liquid tank (5); the water adding adjusting tank (3) and the biogas fermentation tank (4) are respectively connected with a heat adjusting and insulating device (13) in two ways; the thermal regulation and heat preservation device (13) is connected with the rainwater collecting pipe (14) in two ways; a return pipe (15) is arranged between the settling tank (10) and the biogas slurry tank (5), and the return pipe (15) is arranged between the biogas slurry tank (5), the biogas fermentation tank (4) and the water adding adjusting tank (3);
a pipeline between the biogas fermentation tank (4) and the desulphurization device (6) is provided with a dehydration and drainage filtering process, and a dehydration device and a drainage filtering device are adopted;
a dehumidification process is arranged on a pipeline between the desulfurization device (6) and the natural gas storage tank (7), dehumidification equipment is adopted, and a flowmeter is also arranged on the pipeline;
the aerobic treatment tank (8) and the liquid fertilizer tank (9) are provided with micro-nano aeration devices (11), and an air inlet pipe of the micro-nano aeration device (11) of the liquid fertilizer tank (9) is connected with an ozone generator (12);
a stirring disc is arranged below the methane fermentation tank (4).
2. The organic matter methane fermentation circulation control integrated system according to claim 1, wherein pumps are arranged on the pipelines of the organic matter adjusting tank (2) and the water adding adjusting tank (3), the pipelines of the water adding adjusting tank (3) and the biogas fermentation tank (4), the pipelines of the settling tank (10) and the biogas slurry tank (5), and the pipelines of the biogas fermentation tank (4) and the return pipe (15), and the pumps are controlled by electric control; valves are arranged on the organic matter adjusting tank (2), the water adding adjusting tank (3), the biogas fermentation tank (4), the biogas slurry tank (5), the desulphurization device (6), the natural gas storage tank (7) and the return pipe (15), and the valves can be electric control valves; the return pipe (15) is provided with a tee joint, and the tee joint adopts a filtering tee joint.
3. The organic matter methane fermentation circulation control integrated system according to claim 1, wherein a flow meter or a weight meter is arranged at an inlet of the biogas fermentation tank (4) on one pipeline of the water adding adjusting tank (3) and the biogas fermentation tank (4).
4. The organic matter methane fermentation circulation control integrated system as claimed in claim 1, wherein methane bacteria are added into the methane fermentation tank (4), and nitrifying bacteria are added into the aerobic treatment tank (8).
5. The organic matter methane fermentation circulation control integrated system as claimed in claim 1, wherein the stirring plate below the methane fermentation tank (4) is connected with the blades through a rotating shaft, the blades are plate-shaped blades, and the four-blade type, three-blade type or two-blade type is adopted.
6. The organic matter methane fermentation circulation control integrated system according to claim 1, wherein sensors are arranged in the organic matter adjusting tank (2), the water adding adjusting tank (3), the methane fermentation tank (4) and the methane tank (5), and the sensors adopt a gas sensor, a temperature sensor, a pH value sensor, a vfa volatile fatty acid sensor on-line monitor and an ORP oxidation-reduction potential sensor.
7. The organic matter methane fermentation circulation control integrated system as claimed in claim 1, wherein the thermal regulation and insulation device (13) adopts photovoltaic, wind power, methane fermentation waste heat or methane purification to generate electricity to supply power.
8. The organic matter methane fermentation circulation control integrated system as claimed in claim 1, wherein the top of the methane fermentation tank (4) is provided with two access ports, the middle is provided with an emergency discharge methane port, a methane liquid outlet is arranged at a position slightly higher than the anaerobic sludge, and methane liquid is periodically discharged into a methane liquid tank.
9. The organic matter methane fermentation circulation control integrated system according to claim 6, wherein the sensor, the electric control valve and the pump are controlled by a controller or a computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220037984.0U CN216663104U (en) | 2022-01-09 | 2022-01-09 | Organic matter methane fermentation circulation control integrated system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220037984.0U CN216663104U (en) | 2022-01-09 | 2022-01-09 | Organic matter methane fermentation circulation control integrated system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216663104U true CN216663104U (en) | 2022-06-03 |
Family
ID=81759049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220037984.0U Active CN216663104U (en) | 2022-01-09 | 2022-01-09 | Organic matter methane fermentation circulation control integrated system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216663104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317253A (en) * | 2022-01-09 | 2022-04-12 | 丁庆 | An organic methane fermentation cycle control integrated system and fermentation method |
-
2022
- 2022-01-09 CN CN202220037984.0U patent/CN216663104U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317253A (en) * | 2022-01-09 | 2022-04-12 | 丁庆 | An organic methane fermentation cycle control integrated system and fermentation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sakar et al. | Anaerobic digestion technology in poultry and livestock waste treatment—a literature review | |
| US7556737B2 (en) | Anaerobic phased solids digester for biogas production from organic solid wastes | |
| US20130260433A1 (en) | High rate anaerobic digester system and method | |
| US9567611B2 (en) | Two-stage anaerobic digestion systems wherein one of the stages comprises a two-phase system | |
| CN103803770B (en) | High-temperature microaerobic-anaerobic digestion device and method for organic sludge | |
| CN101565719A (en) | Method for producing methane by two-phase multi-stage anaerobic fermentation of organic solid wastes | |
| CN108892334A (en) | A kind of centralized processing of animal waste utilizes system and method | |
| CN114317253A (en) | An organic methane fermentation cycle control integrated system and fermentation method | |
| CN105861306A (en) | Solid-liquid two-phase anaerobic fermentation apparatus and method | |
| CN102030456A (en) | Method for enhancing dry-process fermentation stability of sludge by adding kitchen waste | |
| CN104276737A (en) | Energy source output type sewage sludge treatment method | |
| CN102133575A (en) | Combined anaerobic pretreatment method for village-in-lake domestic sewage and organic waste | |
| CN216663104U (en) | Organic matter methane fermentation circulation control integrated system | |
| KR100883676B1 (en) | Abnormal anaerobic digestion apparatus with pH control through real-time pH monitoring | |
| CN107935345A (en) | A kind of domestic sludge Anaerobic Digestion cultivates the method and system of organic nutrient soil | |
| CN109401947B (en) | Sludge and kitchen waste co-digestion system and operation method thereof | |
| CN212560232U (en) | Plug-flow type micro-aerobic hydrolysis device | |
| CN106282245B (en) | Novel organic garbage recycling method and system | |
| KR101313766B1 (en) | Apparatus and method for high-performance anaerobic digestion using mixture of livestock wastewater and subsidiary materials | |
| CN214244406U (en) | Integrated gas fertilizer co-production device for methane tank | |
| Jin et al. | Biomass-biogas recycling technique studies of municipal food waste disposal: A reviw | |
| CN214735262U (en) | Dirty two-stage anaerobic treatment device of scale pig raising excrement | |
| Youcai et al. | Biomethane production from vegetable and water hyacinth waste | |
| Ghaly | Biogas production from dairy manure using continuous mix and no-mix mesophilic reactors | |
| CN113717833A (en) | Plug flow type micro aerobic hydrolysis device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |