CN102179167A - Microbial flue gas desulfurizer - Google Patents
Microbial flue gas desulfurizer Download PDFInfo
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- CN102179167A CN102179167A CN2011101030301A CN201110103030A CN102179167A CN 102179167 A CN102179167 A CN 102179167A CN 2011101030301 A CN2011101030301 A CN 2011101030301A CN 201110103030 A CN201110103030 A CN 201110103030A CN 102179167 A CN102179167 A CN 102179167A
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- China
- Prior art keywords
- flue gas
- bacteria
- sulfur
- gas desulfurizer
- desulfurizing agent
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000003546 flue gas Substances 0.000 title claims abstract description 25
- 230000000813 microbial effect Effects 0.000 title claims abstract description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 41
- 241000894006 Bacteria Species 0.000 claims abstract description 37
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 19
- 239000011593 sulfur Substances 0.000 claims abstract description 19
- 239000001963 growth medium Substances 0.000 claims abstract description 18
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 229910001448 ferrous ion Inorganic materials 0.000 claims abstract description 8
- 241001147780 Alicyclobacillus Species 0.000 claims abstract description 5
- 229910001447 ferric ion Inorganic materials 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 8
- 241000605222 Acidithiobacillus ferrooxidans Species 0.000 claims description 7
- 229940075933 dithionate Drugs 0.000 claims description 6
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052683 pyrite Inorganic materials 0.000 claims description 3
- 239000011028 pyrite Substances 0.000 claims description 3
- HPQYKCJIWQFJMS-UHFFFAOYSA-L tetrathionate(2-) Chemical compound [O-]S(=O)(=O)SSS([O-])(=O)=O HPQYKCJIWQFJMS-UHFFFAOYSA-L 0.000 claims description 3
- 241000605272 Acidithiobacillus thiooxidans Species 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 2
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical group [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- 239000002609 medium Substances 0.000 claims 2
- -1 dithionate Chemical compound 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 14
- 230000023556 desulfurization Effects 0.000 abstract description 13
- 244000005700 microbiome Species 0.000 abstract description 10
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 230000001580 bacterial effect Effects 0.000 abstract description 5
- 239000006227 byproduct Substances 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 5
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- OKVGBKABWITJQA-UHFFFAOYSA-L manganese dithionate Chemical compound [Mn+2].[O-]S(=O)(=O)S([O-])(=O)=O OKVGBKABWITJQA-UHFFFAOYSA-L 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 33
- 230000003009 desulfurizing effect Effects 0.000 description 33
- 241000193830 Bacillus <bacterium> Species 0.000 description 11
- 239000002253 acid Substances 0.000 description 11
- 125000002723 alicyclic group Chemical group 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 10
- 229910052748 manganese Inorganic materials 0.000 description 10
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 8
- 229910001437 manganese ion Inorganic materials 0.000 description 8
- 239000005864 Sulphur Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 241000605118 Thiobacillus Species 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000003916 acid precipitation Methods 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229940099596 manganese sulfate Drugs 0.000 description 2
- 235000007079 manganese sulphate Nutrition 0.000 description 2
- 239000011702 manganese sulphate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Inorganic materials [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 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
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- RMGVZKRVHHSUIM-UHFFFAOYSA-N dithionic acid Chemical compound OS(=O)(=O)S(O)(=O)=O RMGVZKRVHHSUIM-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011507 gypsum plaster Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000003752 hydrotrope Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000009630 liquid culture Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002068 microbial inoculum Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明涉及一种微生物烟气脱硫剂，其特征在于包含有脂环酸芽孢杆菌BM NO.CGMCC 4500的活菌，以及任一种或几种利用亚铁离子和/或还原态硫，和/或单质硫作为能量来源的嗜酸菌的活菌菌液，其中菌液的培养基中添加有亚铁组分和/或还原态硫、和/或单质硫。本发明的脱硫剂相比原有单纯软锰矿脱硫，由于添加了可以氧化还原态硫的微生物和富含高铁离子的发酵液使得SO2的氧化效率更高，副产品连二硫酸锰的产量得到了降低，从而提高了脱除率。The invention relates to a microbial flue gas desulfurizer, which is characterized in that it contains the live bacteria of Alicyclobacillus BM NO.CGMCC 4500, and any one or several kinds of ferrous ions and/or reduced sulfur, and/or Or the live bacterial liquid of acidophilic bacteria with elemental sulfur as the energy source, wherein the culture medium of the bacterial liquid is added with ferrous components and/or reduced sulfur, and/or elemental sulfur. Compared with the original simple pyrolusite desulfurization, the desulfurizer of the present invention has higher oxidation efficiency of SO due to the addition of microorganisms that can oxidize and reduce sulfur and fermented liquid rich in ferric ions, and the output of by-product manganese dithionate has been improved. decreased, thereby increasing the removal rate.
Description
Technical field
The invention belongs to the flue gas desulfurization technique field, be specifically related to a kind of microorganism fume desulfurizing agent, promptly the iron sulfur-oxidizing microorganisms is the main desulfurizing agent of forming, and sulfur in smoke is removed.
Technical background
SO in the atmosphere
2Be the principal element that acid rain forms, the whole world is annual to damage environment because the agricultural that acid rain causes, economy and culture loss are huge, and acid rain causes the face of land, underground water simultaneously, and the acidifying of soil, wherein the SO in the thermal power generation discharging flue gas
2Be SO in the atmosphere
2Main source.The coal resources of China have the high characteristics of sulfur content, SO in the flue gas that the burning back produces
2Content higher.Though government has taked the measure of a series of energy-saving and emission-reduction, SO
2Total discharge capacity still surpasses the U.S., Russia and India.Flue gas desulfurization technique mainly is divided into the desulfurization of calcium method and the ammonia process of desulfurization at present.Wherein calcium method desulfurization product is CaSO
4, being called desulfurated plaster, purity, compression and tensile strength, moisture content all can't be competed with the plaster of paris, have to take a large amount of soils and store up as waste disposal.Long-term a large amount of stacking of this discarded object has potential harmfulness to weather, soil, plant or even human health.The pollution treatment mode of this pure feeding type causes each high-power station cost of electricity-generating to increase, have in addition can't reach rate for incorporation into the power network.Though the ammonia process of desulfurization can have the nitrogenous fertilizer of economic worth by by-product, but exists disposal ability limited, can't be applied to the flue gas desulfurization and the problem such as transportation inconvenience etc. of large-scale steam power plant, be of limited application.Therefore, develop a kind of better desulphurizing ability that has, the desulfurizing agent of accessory substance that again can the high economic value added of output is a feasible way that improves present China flue gas desulfurization present situation.
Manganese is important civil and military metallic element, extensive use in production, life and facilities for preparation against war, equipment.China need fill up the breach of manganese resource every year from a large amount of manganese ore of external import.Along with the exploitation of China south high-grade manganese ore totally, how to develop the surprising low-grade manganese of northern reserves effectively, be that China breaks away from main dependence on import manganese ore, realize that resource makes full use of one of outlet of exploitation.Utilize pyrolusite to remove SO in the flue gas
2Research just have relevant research to carry out as far back as the nineties, but still be subjected to the puzzlement of higher secondary pollution that causes of accessory substance manganous dithionate and the undesirable factor of desulfurization degree so far, and can't implement Industry Promotion.
Summary of the invention
The purpose of this invention is to provide a kind of microorganism fume desulfurizing agent, make microbial inoculum after the viable bacteria that promptly utilizes alicyclic acid bacillus BM bacterial strain and other to have the acidophil of iron sulphur oxidability mixes, flue gas is carried out desulfurization.In existing pyrolusite sulfur removal technology, use desulfurizing agent of the present invention, can leach manganese sulfate simultaneously, to remedy the deficiency of existing pyrolusite sulfur removal technology.
The used alicyclic acid bacillus BM (Alicyclobacillus ferriphillum) of the present invention is preserved in China Committee for Culture Collection of Microorganisms common micro-organisms center on December 22nd, 2010, the Yard 1, BeiChen xi Road, Chaoyang District, Beijing City, preserving number is: CGMCC NO.4500.
Desulfurizing agent of the present invention includes the viable bacteria of alicyclic acid bacillus BM NO.CGMCC 4500, and any or several reduced sulfur that utilizes, and/or ferrous ion, and/or elemental sulfur is the viable bacteria bacterium liquid of the acidophil of energy source, wherein be added with reduced sulfur in the bacterium liquid culture medium, and/or ferrous ion, and/or elemental sulfur.
Above-mentioned reduced sulfur, the ferrous or elemental sulfur of utilizing is preferably Thiobacillus thioxidans (Acidithiobacillus thiooxidans as the acidophil of energy source, ATCC 8085) and/or Thiobacillus ferrooxidans (Aferrooxidans, ATCC13598), these two kinds of bacterium are from US mode culture research institute (ATCC).
Above-mentioned ferrous component is a ferrous sulfate, the sulphur of going back ortho states can be in sulphite, dithionate, the tetrathionate any or several; Elemental sulfur is the sublimed sulfur powder.Can provide ferrous and go back the sulphur of ortho states with pyrite.
The concentration of viable bacteria is 10 in the desulfurizing agent
8-10
9CFU/ml, wherein the amount of viable bacteria of CGMCC NO.4500 viable bacteria and acidophil ratio is 1: 2～3.
The culture medium of preparation desulfurizing agent can be the Leathen culture medium, also can be that 9K culture medium or other can satisfy alicyclic acid bacillus CGMCC 4500 and be similar to that utilizing of Thiobacillus thioxidans, Thiobacillus ferrooxidans is ferrous, reduced sulfur or elemental sulfur be as the culture medium of the acidophil growth of energy source.In this class culture medium, comprise that mass volume ratio g/ml is the (NH of 0.015%-0.3% general the composition
4)
2SO
4, the KH of 0.01%-0.4%
2PO
4, 0.05% MgSO
47H
2O, 0.001% Ca (NO
3)
2, 0.001%-4%, FeSO
47H
2Sulphite, dithionate or the tetrathionate (being used to provide reduced sulfur or elemental sulfur) of O (being used to provide ferrous ion) and 0.5%-1% can also be added with the sublimed sulfur powder elemental sulfur component is provided in culture medium.
In order to increase SO
2Solubility, the system pH of desulfurizing agent is controlled between 4～5, uses deposed ammonia to carry out the adjusting of pH.
Add the pyrolusite powder in desulfurizing agent, addition g/ml is 10%.
Microorganism fume desulfurizing agent of the present invention removes SO in the flue gas at pyrolusite
2Application in the technology.
Desulfurizing agent of the present invention compares original simple pyrolusite desulfurization, because the zymotic fluid that has added microorganism that can redox state sulphur and be rich in ferric ion makes SO
2Oxidation efficiency higher, the output of byproduct manganous dithionate has obtained reduction, thereby has improved removal efficiency.
The specific embodiment
One, is used to prepare the microorganism of desulfurizing agent
The included alicyclic acid bacillus BM of desulfurizing agent of the present invention is that Screening and Identification obtains from environmental sample, and be defined as the new subspecies of Alicyclobacillus ferriphillum, the standard of perfection reference literature is " Alicyclobacillus spoilage and isolation-A review ", is published in " Food Microbiology " 2010 the 30th phase 1-19 pages or leaves.This bacterium preserves in Chinese common micro-organisms DSMZ on December 22nd, 2010, numbering CGMCC NO.4500, the oxidable ferrous ion of this bacterium.
In desulfurizing agent, also include and utilize the acidophil of reduced sulfur, can utilize the sulphur of going back ortho states to obtain energy, fixation of C O as energy source
2Grow.Selective oxidation sulphur Thiobacillus of the present invention and/or Thiobacillus ferrooxidans, nutritional mode and the Thiobacillus thioxidans of Thiobacillus ferrooxidans are similar, but can also utilize the iron of going back ortho states to obtain energy.
Microbial growth pH scope in the desulfurizing agent is 1～5, and the sulphur that can utilize ferrous ion or go back ortho states is grown by stabilizing carbon dioxide as energy matrix.Contain a large amount of SO in the flue gas
2And CO
2Gas, these can provide nutrition for microbial growth.The sulphur oxidative function of flora not only can reach direct oxidation SO
2The part hydrotrope, the effect of generation sulfate radical, the dithionic acid root in all right oxidized byproduct manganous dithionate generates sulfate radical final production manganese sulfate, realizes reducing content of by-products; The a large amount of ferric ions that are rich in the bacterial strain BM zymotic fluid also can be to SO
2And the aqueous solution plays good oxidation, after it is reduced to ferrous ion, can be grown by bacterial strain BM and iron-oxidizing bacterium utilization again.Flora fixation of C O
2Function can also partly remove CO in the flue gas
2Gas has also been realized emission reduction effect.
Two, the preparation of desulfurizing agent
SO at existing pyrolusite
2Subtractive process in, can produce the manganese ion (0.75%～7.5%) of high concentration, can in the manganese ion environment of high concentration, normally bring into play its physiological function in order to make flora, can select flora is carried out the domestication of manganese ion adaptability.
(1) the domestication flora adapts to the variable concentrations manganese ion:
With alicyclic acid bacillus BM with to utilize reduced sulfur to be inoculated into the pH value respectively as the acidophil of energy source be among 4～5 the Leathen or 9K culture medium.At 30 ℃, be cultured to OD under the condition of culture of 180rpm then
600=0.5～0.6, then according to alicyclic acid bacillus BM with utilize reduced sulfur to be mixed and made into mixed liquor than 1: 2～3 ratio as the quantity of the acidophil of energy source, again the ratio of mixed liquor with 1: 10 joined in new Leathen or the 9K culture medium, under the same conditions, be cultured to flora OD
600Being 0.8～1.0, is seed liquor with this nutrient solution, transfers in new Leathen or the 9K culture medium according to 1: 10 ratio, adds manganese sulfate monohydrate, and the final concentration that makes manganese ion is 1%～15%.At first contain 1% manganese ion from system and begin domestication, going down to posterity was no less than for 30 generations, was cultured to OD
600=0.8～1.0 are considered as this time, and domestication finishes, improve concentration to 3%, carry out the domestication second time, the domestication number of times is no less than 4 times, until reaching 15% the highest concentration, finish domestication, obtain containing alicyclic acid bacillus BM and utilize reduced sulfur as the quantity of the acidophil of energy source the good mixed bacteria liquid of domestication than 1: 2～3 ratio.
(2), preparation desulfurizing agent:
The mixed bacteria liquid that domestication is good joins in new leathen or the 9K culture medium with 1: 10 ratio, at 30 ℃, cultivates OD under the 180rpm condition
600=0.8～1.0.Get cultured bacterium liquid, be transferred in new Leathen or the 9K culture medium, just make desulfurizing agent of the present invention after the cultivation with 1: 10 ratio.
In order to obtain the higher desulfuration effect in application, the adding mass volume ratio is 10% pyrolusite powder (containing manganese 15%) in desulfurizing agent, fully mixes.
Embodiment 1:
After alicyclic acid bacillus BM and Thiobacillus thioxidans cultivated in the leathen culture medium respectively, in the quantity ratio of bacterium be 1: 3 ratio mixed desulfurizing agent 100L, wherein the concentration of viable bacteria is 1.5 * 10
9CFU/ml.In desulfurizing agent, add 10% pyrolusite powder, both in the desulfurizing agent of 100L, contained 10 kilograms pyrolusite powder (containing manganese 15%)
Embodiment 2:
Alicyclic acid bacillus BM, Thiobacillus thioxidans and Thiobacillus ferrooxidans after the cultivation, were mixed and made into desulfurizing agent by bacterium quantity respectively than 1: 2: 2 in the 9K culture medium, wherein the concentration of viable bacteria is 2.9 * 10
9CFU/ml.The pyrolusite (containing manganese 15%) that in the desulfurizing agent of 100L, adds 10 kilograms.
Embodiment 3:
After alicyclic acid bacillus BM and Thiobacillus ferrooxidans cultivated in the leathen culture medium respectively, in the quantity ratio of bacterium be 1: 2.5 ratio mixed desulfurizing agent, wherein the concentration of viable bacteria is 8.9 * 10
8CFU/ml adds 10 kilograms pyrolusite (containing manganese 15%) in the desulfurizing agent of 100L.
Three, the effect detection of product:
Desulfurized effect to desulfurizing agent detects, and gases used is commercially available SO
2Gas in the steel cylinder, gas purity 98%.Adopt high tower blistering reaction mode, both breather pipe had been insinuated into the desulfurizing agent bottom of embodiment 1-3 respectively, charge into air simultaneously, increase oxidation efficiency.Gas flow rate is 1L/min, carries out desulphurization reaction at normal temperatures and pressures.Steam vent places cat head, detects SO in the gas
2Content is put at the bottom of the outage, collects liquid and detects the manganese ion concentration that leaches in the solution, removes time 1.5-2 hour.Effect is as follows:
The result shows that desulfurizing agent of the present invention can effectively be removed SO in the flue gas
2, and can leach the Mn ion.Wherein the desulfurizing agent effect of the embodiment 2 that is made up of three kinds of bacterium and pyrolusite is best, and its reason is that three kinds of synergies between the bacterium are than single the better of bacterium or two kinds of bacterium of planting.And remove SO in the flue gas at the pyrolusite of reality
2Add the desulfurizing agent of the embodiment of the invention 2 in the technology, found that desulfurization degree than the control group that does not have to add and improved 13%, and manganese ion turnover rate has improved 10%.
Claims (10)
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|---|---|---|---|
| CN2011101030301A CN102179167B (en) | 2011-04-22 | 2011-04-22 | A microbial flue gas desulfurizer |
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|---|---|---|---|
| CN2011101030301A CN102179167B (en) | 2011-04-22 | 2011-04-22 | A microbial flue gas desulfurizer |
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| CN102179167B CN102179167B (en) | 2012-11-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103255176A (en) * | 2013-04-17 | 2013-08-21 | 北京化工大学 | Method for desulfurization regeneration of waste latex by use of microbial bacteria |
| CN105779761A (en) * | 2014-12-24 | 2016-07-20 | 北京有色金属研究总院 | Method for desulfurating high-sulfur iron ores by using low-temperature efficient sulfur-oxidizing bacterium |
| CN105779325A (en) * | 2014-12-25 | 2016-07-20 | 北京有色金属研究总院 | Fatty acid bacillus and method for treatment of heavy metal pollution of mine by in situ mineralization of the same |
| CN107983108A (en) * | 2017-12-18 | 2018-05-04 | 常州思宇环保材料科技有限公司 | A kind of preparation method of the special sulphur-fixing agent of flue gas desulfurization |
| CN109425549A (en) * | 2017-08-21 | 2019-03-05 | 北新集团建材股份有限公司 | A method of analysis grade of gypsum |
| CN111278536A (en) * | 2017-09-13 | 2020-06-12 | Sk新技术株式会社 | Method for reducing carbon dioxide and metal-containing dust |
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| US4861723A (en) * | 1986-12-15 | 1989-08-29 | Shell Oil Company | Microbiological desulfurization of coal and coal water admixture to provide a desulfurized fuel |
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Cited By (10)
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|---|---|---|---|---|
| CN103255176A (en) * | 2013-04-17 | 2013-08-21 | 北京化工大学 | Method for desulfurization regeneration of waste latex by use of microbial bacteria |
| CN103255176B (en) * | 2013-04-17 | 2014-11-05 | 北京化工大学 | Method for desulfurization regeneration of waste latex by use of microbial bacteria |
| CN105779761A (en) * | 2014-12-24 | 2016-07-20 | 北京有色金属研究总院 | Method for desulfurating high-sulfur iron ores by using low-temperature efficient sulfur-oxidizing bacterium |
| CN105779761B (en) * | 2014-12-24 | 2018-02-23 | 北京有色金属研究总院 | A kind of method that high sulfide pyrite desulfurization is carried out with efficient cryogenic sulfur oxidizing bacterium |
| CN105779325A (en) * | 2014-12-25 | 2016-07-20 | 北京有色金属研究总院 | Fatty acid bacillus and method for treatment of heavy metal pollution of mine by in situ mineralization of the same |
| CN109425549A (en) * | 2017-08-21 | 2019-03-05 | 北新集团建材股份有限公司 | A method of analysis grade of gypsum |
| CN111278536A (en) * | 2017-09-13 | 2020-06-12 | Sk新技术株式会社 | Method for reducing carbon dioxide and metal-containing dust |
| CN111278536B (en) * | 2017-09-13 | 2023-05-02 | Sk新技术株式会社 | Ways to reduce carbon dioxide and metal-containing dust |
| CN107983108A (en) * | 2017-12-18 | 2018-05-04 | 常州思宇环保材料科技有限公司 | A kind of preparation method of the special sulphur-fixing agent of flue gas desulfurization |
| CN107983108B (en) * | 2017-12-18 | 2021-02-12 | 秦皇岛鑫浩新材料科技有限公司 | Preparation method of special sulfur fixing agent for flue gas desulfurization |
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