CN101830617A - Methane production, desulfuration and denitrification integrated device - Google Patents
Methane production, desulfuration and denitrification integrated device Download PDFInfo
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- CN101830617A CN101830617A CN201010114626A CN201010114626A CN101830617A CN 101830617 A CN101830617 A CN 101830617A CN 201010114626 A CN201010114626 A CN 201010114626A CN 201010114626 A CN201010114626 A CN 201010114626A CN 101830617 A CN101830617 A CN 101830617A
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 29
- 239000010802 sludge Substances 0.000 claims abstract description 36
- 239000002351 wastewater Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005191 phase separation Methods 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 238000006396 nitration reaction Methods 0.000 claims description 25
- 230000005484 gravity Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 239000005864 Sulphur Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 19
- 229910052717 sulfur Inorganic materials 0.000 abstract description 8
- 239000011593 sulfur Substances 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 7
- 229910002651 NO3 Inorganic materials 0.000 abstract description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 238000010992 reflux Methods 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 230000023556 desulfurization Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 12
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 235000003599 food sweetener Nutrition 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 230000000050 nutritive effect Effects 0.000 description 3
- 239000003765 sweetening agent Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000031018 biological processes and functions Effects 0.000 description 2
- 238000001311 chemical methods and process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000010797 grey water Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005273 aeration Methods 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
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007483 microbial process Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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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
- 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
- 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
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
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- Organic Chemistry (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a methane production, desulfuration and denitrification integrated device which comprises a methane production area I, a three-phase separation area II, a desulfuration-denitrification area III and a nitrified waste water storage tank, wherein the methane production area I is provided with a sludge discharge pipe, a water inlet pipe, a sampling pipe and a refluxing pipe; the three-phase separation area II is provided with a sludge settling chamber, a reverse-funnel-shaped three-phase separator, a first gas chamber, a first overflow discharge pipe and a methane collection monitoring pipe; a main body of the desulfuration-denitrification area III comprises a first desulfuration-denitrification canister and a second desulfuration-denitrification canister and is provided with a sludge hopper, a disc-shaped gas distribution device, a methane input pipe, a second overflow discharge pipe, a sulfur discharge pipe, a purified methane constant pressure pipe, a second gas chamber, a third gas chamber, a nitrified wastewater self-flowing pipe and a methane collection pipe. The device has the advantages that: (1) the methane production is integrated with desulfuration and denitrification, and the production and the desulfuration of the methane are simultaneously carried out without gas pump conveying; and (2) the sulfur resource can be reclaimed by oxidizing H2S into sulfur, and the nitrogen pollution can be eliminated by reducing nitrate into nitrogen.
Description
Technical field
The present invention relates to a kind of methane production, desulfuration and denitrification integrated device, be applicable to biogas engineering, organic waste water anaerobic treatment engineering etc.
Background technology
Biogas fermentation is one of important means of treatment of Organic Wastewater.Because running cost is low, sludge yield is few, recyclable biogas, the biogas fermentation technology has been subjected to the favor of environmental engineering circle.Sanitary sewage contains 3～6mg/L organosulfur and 30～60mg/L inorganic sulfur, the sulphate content of some industrial organic waste waters (as paper pulp wastewater, leather-making waste water, pharmacy waste water etc.) even up to more than the 9000mg/L.In the anaerobic biological treatment process of these sulfur-containing waste waters, can produce a large amount of hydrogen sulfide, concentration is about 1～20g/m
3Hydrogen sulfide is a kind of hypertoxic obnoxious flavour.In air and under the wet environment condition, hydrogen sulfide has the strong corrosion effect to pipeline, burner and other hardware, instrument etc.; Sulfureted hydrogen burning generates sulfurous gas, can directly influence human body health; Sulfurous gas is met water and is generated sulfuric acid, and the intensive corrosive nature is then arranged.Biogas desulfurization is a treatment process indispensable in the biogas production.
The method of biogas desulfurization has chemical method, physico-chemical process and biological process etc.At present the desulfurization technology of widespread usage promptly removes H in the biogas with the ferric oxide sweetening agent based on physico-chemical processes (being commonly called as dry desulfurization) on China's biogas engineering
2S.At normal temperatures, biogas is by the sweetening agent bed, and hydrogen sulfide contacts with activated ferric oxide, generates ironic sulfide, contacts with air then, and the sulfide of iron is converted into ferric oxide and elemental sulfur.Such desulfurization regeneration process is repeatedly capable of circulation, is covered by sulphur or other impurity and loses activity until most of hole on ferric oxide desulfurizer surface.The ferric oxide dry desulfurizing process is simple, mature and reliable, the low (25m of cost
3The thionizer cost is about 80,000), can reach higher degree of purification.But, the higher (15 yuan/kg (H of this method processing cost
2S) about), operation trouble (needing replacing or recycling desulfurizer once in per 4～6 months), and there is the secondary pollution problem in the depleted sweetening agent.
Compare with chemical method with the physics method, the biological process desulfurization has characteristics such as equipment is simple, cost is low, environment-protecting clean, recyclable elemental sulfur, is the desulfurization technology that has development potentiality.Studies have shown that some microorganisms can be that electron acceptor(EA) becomes elemental sulfur with sulfide oxidation with nitrate or nitrite.Compare with the aerobe desulfurization, unit off gas treatment expense is lower.Along with applying of short distance nitration technology,, can further reduce the off gas treatment cost the electron acceptor(EA) of the nitrite of short distance nitration generation as biogas desulfurization.Its reaction formula is:
H
2S+2/3NO
2 -+2/3H
+——S
0+1/3N
2+4/3H
2O
Or H
2S+2/5NO
3 -+ 2/5H
+---S
0+ 1/3N
2+ 6/5H
2O
Biogas production and desulfurization-denitrogenation are united two into one, develop a kind of biogas biology-desulfurization-denitrification integrated device, not only can simplified apparatus, save biogas and carry air pump, can also original position alleviate the restraining effect of hydrogen sulfide, improve the adaptability of anaerobic reactor sulfur-containing waste water to anaerobic digestion.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of methane production, desulfuration and denitrification integrated device is provided.
Methane production, desulfuration and denitrification integrated device comprises biogas production district I, three-phase separation area II, desulfurization-denitrogenation district III and the nitration waste water storage tank that is connected, biogas production district I comprises shore pipe, water inlet pipe, reaction tube, stopple coupon and return line, the reaction tube bottom is provided with shore pipe, is provided with water inlet pipe, stopple coupon and return line from top to bottom successively on the reaction barrel; Three-phase separation area II is provided with sludge settling chamber, the triphase separator of falling the funnel-form and first air chamber from top to bottom successively, and the outer side wall of sludge settling chamber is provided with first and overflows water pipe, and the outer side wall of first air chamber is provided with biogas sampling monitoring pipe; Desulfurization-denitrogenation district III main body comprises first desulfurization-denitrogenation tube and second desulfurization-denitrogenation tube, first desulfurization-denitrogenation the tube and second desulfurization-denitrogenation tube comprises the biogas input tube, second overflows water pipe, second air chamber, purifying marsh gas constant voltage pipe, the 3rd air chamber, the collecting methane pipe, first desulfurization-denitrogenation tube, the nitration waste water gravity line, sulphur discharging pipeline, second desulfurization-denitrogenation tube, dish-type gas pipe and sludge bucket, first desulfurization-denitrogenation the tube and second desulfurization-denitrogenation tube bottom is respectively equipped with sludge bucket, sludge bucket top is provided with the dish-type gas pipe, the dish-type gas pipe links to each other with the biogas input tube, the sludge bucket bottom is connected with sulphur discharging pipeline, the upper and lower ends of purifying marsh gas constant voltage pipe is connected with second air chamber with the 3rd air chamber respectively, the nitration waste water gravity line is two fluid connections that biogas desulfurization-denitrogenation tube is interior up and down, first desulfurization-denitrogenation tube outer side wall is provided with the collecting methane pipe, and second desulfurization-denitrogenation tube outer side wall is provided with second and overflows water pipe.
The volume ratio of described biogas production district I, three-phase separation area II and biogas desulfurization-denitrogenation district III is 2: 1: 1～4: 1: 1.Described purifying marsh gas constant voltage pipe upper end exceeds 1～2cm than liquid level in first desulfurization-denitrogenation tube; Nitration waste water gravity line upper end flushes with liquid level in first desulfurization-denitrogenation tube, and nitration waste water gravity line lower end is than the low 2～4cm of the interior liquid level of second desulfurization-denitrogenation tube.Described sludge bucket is taper, and the base angle of sludge bucket is 100～120 °.
The beneficial effect that the present invention compared with prior art has: 1. biogas production and desulfurization removing nitric are melted into a whole, and biogas is desulfurization while producing, and need not air pump and carry; 2. with nitration waste water as spray liquid, both nutrients in the graywater and save cost, also nitrate and remove oxygen supply from the graywater; 3. with H
2S is oxidized to elemental sulfur, and recyclable sulphur resource becomes nitrogen with nitrate reduction, can eliminate nitrate pollution; 4. biogas desulfurization divides two sections processing, can alleviate biogas production device biogas pressure problems of too.
Description of drawings
Fig. 1 is the structural representation of methane production, desulfuration and denitrification integrated device, among the figure: shore pipe 1, water inlet pipe 2, reaction tube 3, stopple coupon 4, return line 5, sludge settling chamber 6, the triphase separator of falling the funnel-form 7, first overflows water pipe 8, first air chamber 9, biogas is gathered monitoring pipe 10, biogas input tube 11, second overflows water pipe 12, second air chamber 13, purifying marsh gas constant voltage pipe 14, the 3rd air chamber 15, biogas output tube 16, first desulfurization-denitrogenation tube 17, nitration waste water gravity line 18, sulphur discharging pipeline 19, second desulfurization-denitrogenation tube 20, dish-type gas pipe 21, sludge bucket 22 and nitration waste water storage tank 23;
Fig. 2 is Figure 1A sectional view.
Embodiment
As shown in Figure 1, methane production, desulfuration and denitrification integrated device comprises biogas production district I, three-phase separation area II, desulfurization-denitrogenation district III and the nitration waste water storage tank 23 that is connected, biogas production district I comprises shore pipe 1, water inlet pipe 2, reaction tube 3, stopple coupon 4 and return line 5, reaction tube 3 bottoms are provided with shore pipe 1, are provided with water inlet pipe 2, stopple coupon 4 and return line 5 on reaction tube 3 walls from top to bottom successively; Three-phase separation area II is provided with sludge settling chamber 6, the triphase separator of falling the funnel-form 7 and first air chamber 9 from top to bottom successively, and the outer side wall of sludge settling chamber 6 is provided with first outer side wall that overflows water pipe 8, the first air chambers 9 and is provided with biogas sampling monitoring pipe 10; Desulfurization-denitrogenation district III main body comprises first desulfurization-denitrogenation tube 17 and second desulfurization-denitrogenation tube 20, first desulfurization-denitrogenation the tube 17 and second desulfurization-denitrogenation tube 20 comprises biogas input tube 11, second overflows water pipe 12, second air chamber 13, purifying marsh gas constant voltage pipe 14, the 3rd air chamber 15, collecting methane pipe 16, nitration waste water gravity line 18, sulphur discharging pipeline 19, dish-type gas pipe 21 and sludge bucket 22, first desulfurization-denitrogenation the tube 17 and second desulfurization-denitrogenation tube 20 bottoms are respectively equipped with sludge bucket 22, sludge bucket 22 tops are provided with dish-type gas pipe 21, dish-type gas pipe 21 links to each other with biogas input tube 11, sludge bucket 22 bottoms are connected with sulphur discharging pipeline 19, the upper and lower ends of purifying marsh gas constant voltage pipe 14 is connected with second air chamber 13 with the 3rd air chamber 15 respectively, nitration waste water gravity line 18 is two fluid connections that biogas desulfurization-denitrogenation tube is interior up and down, first desulfurization-denitrogenation tube 17 outer side walls are provided with collecting methane pipe 16, the second desulfurization-denitrogenation tube 20 outer side walls and are provided with second and overflow water pipe 12.
The volume ratio of described biogas production district I, three-phase separation area II and biogas desulfurization-denitrogenation district III is 2: 1: 1～4: 1: 1.Described purifying marsh gas constant voltage pipe 14 upper ends exceed 1～2cm than liquid level in first desulfurization-denitrogenation tube 17; Nitration waste water gravity line 18 upper ends flush with liquid level in first desulfurization-denitrogenation tube 17, and nitration waste water gravity line 18 lower ends are than the low 2～4cm of liquid level in second desulfurization-denitrogenation tube 20.Described sludge bucket 22 is taper, and the base angle of sludge bucket 22 is 100～120 °.
Five system work process of the present invention are as follows:
(1) biogas production system.Mainly comprise sludge discharging area 1, water inlet pipe 2, reaction tube 3, stopple coupon 4, return line 5, the triphase separator of falling the funnel-form 7 and overflow water pipe 1.Waste water enters biogas production district I after microbial process produces biogas, and granule sludge enters the triphase separator of falling funnel-form realization gas-liquid-solid three-phase with biogas that rises and waste water to be separated.Biogas further enters desulfurization-nitrogen rejection facility, and water outlet is after treatment discharged reactor by overflowing water pipe 1.Fermented liquid refluxes by return line 5 can promote H in the liquid phase
2S discharges.
(2) nutritive medium allocating system.By transferpump and transfer lime with the nutrition liquid pump in the nitration waste water storage tank to desulfurization-denitrogenation tube 1, when liquid level is too high in desulfurization-denitrogenation tube 1, nutritive medium enters desulfurization-denitrogenation tube 2 20 by nitration waste water gravity line 18, is provided with in desulfurization-denitrogenation tube two to overflow water pipe 2 12 with the discharge of the nitration waste water after denitrogenation reactor.Originate nitration waste water widely of utilization carries out biogas desulfurization as nutritive medium and the electron acceptor(EA) of desulfurization microorganism, not only can reduce the running cost of desulfurizer, and can realize the treatment of wastes with processes of wastes against one another.
(3) biological desulphurization system.Hydrogen sulfide containing biogas is delivered to dish-type gas pipe 21 through biogas transfer lime 11 under the promotion of self air pressure, biogas evenly discharges in liquid phase by gas pipe, hydrogen sulfide in the biogas enters liquid phase by gas-liquid exchange, in desulfurization-denitrogenation tube by removal of microorganisms.Biogas is imported the aeration process in the similar activated sludge process, can make a large amount of transfer of hydrogen sulfide in the gas phase enter liquid phase on the one hand, can the active sludge in desulfurization-denitrogenation tube be stirred on the other hand.Divide two sections and handle hydrogen sulfide containing biogas and nitration waste water simultaneously, can alleviate biogas production device biogas pressure problems of too.First air chamber and the 3rd air chamber are respectively equipped with biogas and gather monitoring pipe 10 and biogas output tube 16, but by gathering gasometry hydrogen sulfide content monitoring device desulfuration efficiency, guarantee that hydrogen sulfide in methane content is less than 20mg/m
3
(4) elemental sulfur is collected blowdown system.The swash plate of sludge bucket 22 and horizontal plane angle α are 20～40 °, and the general mud of sulfur-bearing mud density is big, and under gravity and biogas stirring action, sulfur-bearing mud is precipitated in the sludge bucket gradually, discharge reactor by sulphur discharging pipeline 19, reach the purpose that reclaims elemental sulfur.
Claims (4)
1. methane production, desulfuration and denitrification integrated device, it is characterized in that comprising the biogas production district I, three-phase separation area II, desulfurization-denitrogenation district III and the nitration waste water storage tank (23) that are connected, biogas production district I comprises shore pipe (1), water inlet pipe (2), reaction tube (3), stopple coupon (4) and return line (5), reaction tube (3) bottom is provided with shore pipe (1), is provided with water inlet pipe (2), stopple coupon (4) and return line (5) on reaction tube (3) wall from top to bottom successively; Three phase separation II is provided with sludge settling chamber (6), the triphase separator of falling the funnel-form (7) and first air chamber (9) from top to bottom successively, the outer side wall of sludge settling chamber (6) is provided with first and overflows water pipe (8), and the outer side wall of first air chamber (9) is provided with biogas sampling monitoring pipe (10); Desulfurization-denitrogenation district III main body comprises first desulfurization-denitrogenation tube (17) and second desulfurization-denitrogenation tube (20), first desulfurization-denitrogenation the tube (17) and second desulfurization-denitrogenation tube (20) comprises biogas input tube (11), second overflows water pipe (12), second air chamber (13), purifying marsh gas constant voltage pipe (14), the 3rd air chamber (15), collecting methane pipe (16), nitration waste water gravity line (18), sulphur discharging pipeline (19), dish-type gas pipe (21) and sludge bucket (22), first desulfurization-denitrogenation the tube (17) and second desulfurization-denitrogenation tube (20) bottom is respectively equipped with sludge bucket (22), sludge bucket (22) top is provided with dish-type gas pipe (21), dish-type gas pipe (21) links to each other with biogas input tube (11), sludge bucket (22) bottom is connected with sulphur discharging pipeline (19), the upper and lower ends of purifying marsh gas constant voltage pipe (14) is connected with second air chamber (13) with the 3rd air chamber (15) respectively, nitration waste water gravity line (18) is two fluid connections that biogas desulfurization-denitrogenation tube is interior up and down, first desulfurization-denitrogenation tube (17) outer side wall is provided with collecting methane pipe (16), and second desulfurization-denitrogenation tube (20) outer side wall is provided with second and overflows water pipe (12).
2. a kind of methane production, desulfuration and denitrification integrated device according to claim 1 is characterized in that: the volume ratio of described biogas production district I, three-phase separation area II and biogas desulfurization-denitrogenation district III is 2: 1: 1～4: 1: 1.
3. a kind of methane production, desulfuration and denitrification integrated device according to claim 1 is characterized in that: described purifying marsh gas constant voltage pipe (14) upper end desulfurization-interior liquid level of denitrogenation tube (17) exceeds 1～2cm; Nitration waste water gravity line (18) upper end flushes with first desulfurization-interior liquid level of denitrogenation tube (17), and nitration waste water gravity line (18) lower end is than the low 2～4cm of second desulfurization-interior liquid level of denitrogenation tube (20).
4. a kind of biogas production-desulfurization denitrification integrated device according to claim 1 is characterized in that: described sludge bucket (22) is taper, and the base angle of sludge bucket (22) is 100～120 °.
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|---|---|---|---|
| CN2010101146267A CN101830617B (en) | 2010-02-26 | 2010-02-26 | Methane production, desulfuration and denitrification integrated device |
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|---|---|---|---|
| CN2010101146267A CN101830617B (en) | 2010-02-26 | 2010-02-26 | Methane production, desulfuration and denitrification integrated device |
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| CN101830617B CN101830617B (en) | 2012-01-25 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276118A (en) * | 2011-07-21 | 2011-12-14 | 农业部沼气科学研究所 | Method for simultaneously removing nitrogen in waste water and sulfur in sewage gas |
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| CN102276118A (en) * | 2011-07-21 | 2011-12-14 | 农业部沼气科学研究所 | Method for simultaneously removing nitrogen in waste water and sulfur in sewage gas |
| CN103013602A (en) * | 2012-12-17 | 2013-04-03 | 陈喆 | Containerized micro negative pressure methane purifying device |
| CN103013602B (en) * | 2012-12-17 | 2013-11-13 | 陈喆 | Containerized micro negative pressure methane purifying device |
| CN105645602A (en) * | 2016-03-30 | 2016-06-08 | 浙江大学 | Automatic fed-batch type efficient iron salt denitrification reaction device and automatic fed-batch type efficient iron salt denitrification reaction method for bacteria |
| CN110372082A (en) * | 2019-07-19 | 2019-10-25 | 轻工业环境保护研究所 | The double de- techniques of sewage treatment plant's sulphur autotrophy nitrogen sulphur |
| CN110818083A (en) * | 2019-12-03 | 2020-02-21 | 杭州师范大学 | Realize integral type reactor of resourceful denitrogenation sulphur removal |
| CN114620907A (en) * | 2022-04-15 | 2022-06-14 | 合肥工业大学 | Autotrophic deep denitrification method for producing hydrogen sulfide by using sludge |
| CN114620907B (en) * | 2022-04-15 | 2023-05-05 | 合肥工业大学 | Autotrophic deep denitrification method for producing hydrogen sulfide by utilizing sludge |
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