CN103127819B - Methane treatment system - Google Patents
Methane treatment system Download PDFInfo
- Publication number
- CN103127819B CN103127819B CN201310073742.2A CN201310073742A CN103127819B CN 103127819 B CN103127819 B CN 103127819B CN 201310073742 A CN201310073742 A CN 201310073742A CN 103127819 B CN103127819 B CN 103127819B
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- China
- Prior art keywords
- biogas
- bioreactor
- gas treating
- methane
- marsh gas
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- 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
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- 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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- Treating Waste Gases (AREA)
Abstract
The invention discloses a methane treatment system and aims to solve the problem that methane produced by kitchen garbage can not be effectively treated and effectively used in the prior art. By using the system disclosed by the invention, he methane is subjected to a series of treatment, so that the methane can be well treated and effectively used.
Description
Technical field
The present invention relates to a kind of restaurant garbage treating system, particularly relate to a kind of marsh gas treating system.
Background technology
Changing food waste process is an emerging environmental protection proposition in China's Mainland, and after the waste oil major case detection transprovincially in the shock whole nation in 2011, country starts management and the disposal of paying much attention to changing food waste.
On August 2nd, 2011, National Development and Reform Committee, the Ministry of Finance, the firmly portion of building announce, recycling economy development special fund 6.3 hundred million yuan will be arranged, support that 33 pilot cities (district) in the whole nation carry out kitchen castoff recycling and harmless treatment, " outlet " of exploring changing food waste for various places provides experience and reference.
Should, within 2011, be the memorable milestone of Chinese meal kitchen garbage disposal, bugle is blowed at this.And within 2012, will be an open arena, the participation of global various state-of-the-art technology the garbage disposal of Chinese meal kitchen will advance a new height.
The marsh gas treating system that a kind of biogas that can effectively produce changing food waste carries out processing and effectively utilizing is lacked in prior art.
Summary of the invention
The invention discloses a kind of marsh gas treating system, lack in order to solve in prior art the problem that a kind of biogas that can effectively produce changing food waste carries out the marsh gas treating system processing and effectively utilize.
Above-mentioned purpose of the present invention is achieved through the following technical solutions:
A kind of marsh gas treating system, comprise, an anaerobic reactor has a biogas outlet, and wherein, air inlet and the described biogas outlet of a methane voltage-stabilizing cabinet are tightly connected; The outlet side of described methane voltage-stabilizing cabinet is connected with the inlet end of a biogas burner and a phase methane bio-desulfurization system respectively; Described methane bio-desulfurization system specifically comprises: a biological scrubbing tower, in order to carry out filler to increase gas liquid interfacial area, is provided with cleaning solution in described zinc cation tower; One bioreactor, is provided with bioreactor liquid in described bioreactor, have Thiobacillus, be provided with aerating system in described bioreactor in described bioreactor liquid; One sulphur settling vessel, in order to separate sulfur and cleaning solution.
Marsh gas treating system as above, wherein, also comprise a condensation water tank, described condensation water tank is connected with the bottom of described methane voltage-stabilizing cabinet, in order to collect the water that in methane voltage-stabilizing cabinet, biogas is separated out.
Marsh gas treating system as above, wherein, is provided with a liquid-level switch and a water system in described condensation water tank, in order to form a water seal, described water seal is leaked from drainpipe in order to prevent biogas.
Marsh gas treating system as above, wherein, described biogas outlet is connected and is provided with a biogas flow monitoring equipment between described methane voltage-stabilizing cabinet.
Marsh gas treating system as above, wherein, described methane voltage-stabilizing cabinet specifically comprises: a tank body and a floating roof, and described floating roof is connected with the film of described tank body by a polyester textile.
Marsh gas treating system as above, wherein, is provided with a level meter in described methane voltage-stabilizing cabinet, in order to monitor the gas position in described methane voltage-stabilizing cabinet.
Marsh gas treating system as above, wherein, described biogas burner, described biogas burner comprises a control device, and described control device specifically comprises: an auxiliary burner, a main burner, an igniter and a temperature sensor.
Marsh gas treating system as above, wherein, has a fan inlet in described aerating system.
Marsh gas treating system as above, wherein, the overflow water backflow end of described sulphur settling vessel is connected with described bioreactor, and the sulphur outlet side of described sulphur settling vessel is connected with a sulphur sludge pump, and described stream sludge pump has a sulphur outlet side.
In sum, owing to have employed technique scheme, the invention discloses a kind of marsh gas treating system and lack in order to solve in prior art the problem that a kind of biogas that can effectively produce changing food waste carries out the marsh gas treating system processing and effectively utilize, by carrying out a series of process to biogas, realizing the good process of biogas and effectively utilizing.
Accompanying drawing explanation
Fig. 1 is the structural representation of marsh gas treating system of the present invention.
Detailed description of the invention
According to the content disclosed in claim of the present invention and summary of the invention, described in technical scheme of the present invention is specific as follows:
Fig. 1 is the structural representation of marsh gas treating system of the present invention, refers to Fig. 1, and a kind of marsh gas treating system, comprises, and an anaerobic reactor has a biogas outlet, and wherein, air inlet and the described biogas outlet of a methane voltage-stabilizing cabinet 101 are tightly connected; The outlet side of described methane voltage-stabilizing cabinet 101 is connected with the inlet end of a biogas burner 102 and a phase methane bio-desulfurization system respectively; Described methane bio-desulfurization system specifically comprises: a biological scrubbing tower 201, in order to carry out filler to increase gas liquid interfacial area, is provided with cleaning solution in described zinc cation tower 201; One bioreactor 202, is provided with bioreactor 202 liquid in described bioreactor 202, have Thiobacillus, be provided with aerating system in described bioreactor 202 in described bioreactor 202 liquid; One sulphur settling vessel, in order to separate sulfur and cleaning solution.
The present invention also comprises a condensation water tank 103, and described condensation water tank 103 is connected with the bottom of described methane voltage-stabilizing cabinet 101, in order to collect the water that in methane voltage-stabilizing cabinet 101, biogas is separated out.
Be provided with a liquid-level switch and a water system in condensation water tank 103 of the present invention, in order to form a water seal, described water seal is leaked from drainpipe in order to prevent biogas.
Biogas outlet of the present invention is connected and is provided with a biogas flow monitoring equipment between described methane voltage-stabilizing cabinet 101.
Methane voltage-stabilizing cabinet 101 of the present invention specifically comprises: a tank body and a floating roof, and described floating roof is connected with the film of described tank body by a polyester textile.Methane voltage-stabilizing cabinet 101 is made up of the cylinder of steel of a tool anticorrosive paint and a floating roof.Setting gas system is produced the gauge pressure of a 2.5 ~ 3.0KPa by the counterweight at floating roof top, and floating roof is connected with the film of tank body by a telescopic polyester textile, so floating roof can move up and down.The volume of such methane voltage-stabilizing cabinet 101 can increase or reduce and press without the need to changing in gas system.The gas position of methane voltage-stabilizing cabinet 101 is monitored continuously by level meter.
A level meter is provided with, in order to monitor the gas position in described methane voltage-stabilizing cabinet 101 in methane voltage-stabilizing cabinet 101 of the present invention.
Biogas burner 102 of the present invention, described biogas burner 102 comprises a control device, and described control device specifically comprises: an auxiliary burner, a main burner, an igniter and a temperature sensor.The biogas coming from methane voltage-stabilizing cabinet 101 flows to the biogas burner 102 of a 1200m3/h.The operation of biogas burner 102 is controlled automatically by the gas position of methane voltage-stabilizing cabinet 101.The operation of biogas burner 102 is made up of an auxiliary burner (by solenoid control), main burner, a set of igniter and a temperature sensor.Hand-operated valve in normal operation on main burner pipeline is often opened, once biogas pressure reaches certain setting value, auxiliary burner magnetic valve is opened, and namely igniter lights a fire, if temp probe detects high temperature, illustrates that igniting flare is in burning.If the gas position of methane voltage-stabilizing cabinet 101 reaches certain level, lighting valve is opened automatically, and igniter starts automatically.If high temperature detected, illustrate that igniting flare is in burning.If when methane voltage-stabilizing cabinet 101 gas position reaches main valve open position level, biogas burner 102 main valve is opened automatically, and biogas is lighted by flare of lighting a fire, and then methane voltage-stabilizing cabinet 101 gas position slowly drops to certain level, biogas burner 102 main valve can be closed automatically, and flare of lighting a fire remains burning.The ignition temperature of biogas can higher than 815 DEG C.
There is in aerating system of the present invention a fan inlet.
The overflow water backflow end of sulphur settling vessel of the present invention is connected with described bioreactor 202, and the sulphur outlet side of described sulphur settling vessel is connected with a sulphur sludge pump, and described stream sludge pump has a sulphur outlet side.
Further, biological desulphurization scrubbing tower is also packed tower, and filled object increases gas liquid interfacial area.Biogas enters zinc cation tower 201(C601 after water distributing can (V601)), biogas in scrubbing tower with top-down cleaning solution counter current contacting, the H2S in biogas is absorbed by cleaning solution in zinc cation tower 201.Gas after desulfurization is discharged from scrubbing tower top and is entered caustic scrubber.Zinc cation tower 201 gas outlet place is arranged on linear pressure table, and when system pressure is too high or too low, system, when reporting to the police, stops circulating pump spray, sprays and interior formation vacuum to prevent scrubbing tower under condition with no pressure.
In zinc cation tower 201, when the H2S in gas is absorbed, there is following reaction:
H2O+NaOH→NaHS + H2O
Absorbing liquid gravity after the bottom collection of scrubbing tower flows into bioreactor 202, and cleaning solution pumps into scrubbing tower by circulating pump from reactor, and wherein part solution is used for scrubbing tower spray froth breaking.Flow switch spray piping is equipped with to monitor the spray situation of spray pump continuously.Packing layer two ends are provided with manual clear water shower, for the filler of timing cleaning zinc cation tower 201.The diameter of zinc cation tower 201 is 1.0m, is highly 19.0 meters.Empty tower gas velocity under normal discharge is 0.3m/s, and bed stuffing height is 8m.
Further, the cleaning solution gravity from zinc cation tower 201 flows into bioreactor 202.Containing Thiobacillus in bioreactor 202 liquid phase, be elemental sulfur at this sulphidic conversion.Without the carrier of fixation of microbe in reactor, and biological sulphur itself act as the role of carrier.Ensure that the complete mixed state of reactor is very crucial, rely on aeration to realize.There is gas distribution system in reactor, carry out aeration by air blast.In bioreactor 202, the key reaction of generation is as follows:
NaHS + 1/2O2→ S + NaOH
By controlling oxygen-supplying amount, while sulphidic conversion is elemental sulfur, alkali is regenerated.The control of oxygen-supplying amount is the oxidation-reduction potential by controlling in bioreactor 202, run by blower variable frequency and realize, namely when the oxidation-reduction potential value of on-line determination is lower than setting value, then need more air to input in reactor, now the running frequency of air blast increases; Otherwise when the oxidation-reduction potential value of on-line determination is higher than setting value, now the running frequency of air blast reduces, and reduces the input of air capacity, thus makes oxidation-reduction potential remain within suitable scope.In bioreactor 202, sulfide is oxidized in the process of elemental sulfur, except controlled oxidization reduction potential, also needs to control pH value, temperature, electrical conductivity and the sulphur sludge concentration in reactor.When pH value is higher, it is automatically out of service that NaOH adds pump, and when pH value is on the low side, NaOH adds pump Automatic continuous and runs, and when pH value is in 8.0 ~ 8.8 scopes, NaOH adds pump and then adds according to the sulphur analysis pulse of air inlet.When time too high or too low for temperature, system will start heat-exchanger rig automatically, make temperature in bioreactor 202 remain on about 35 degree.Electrical conductivity raises then can open water compensating valve, automatically for reducing the electrical conductivity of system.
In sum, owing to have employed technique scheme, the invention discloses a kind of marsh gas treating system and lack in order to solve in prior art the problem that a kind of biogas that can effectively produce changing food waste carries out the marsh gas treating system processing and effectively utilize, by carrying out a series of process to biogas, realizing the good process of biogas and effectively utilizing.
Above preferred embodiment of the present invention is described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or being revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present invention.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (8)
1. a marsh gas treating system, comprises, and an anaerobic reactor has a biogas outlet, it is characterized in that, air inlet and the described biogas outlet of a methane voltage-stabilizing cabinet are tightly connected; The outlet side of described methane voltage-stabilizing cabinet is connected with the inlet end of a biogas burner and a phase methane bio-desulfurization system respectively; Described methane bio-desulfurization system specifically comprises: a biological scrubbing tower, and in order to carry out filler to increase gas liquid interfacial area, be provided with cleaning solution in described zinc cation tower, described zinc cation tower comprises: a caustic scrubber; One bioreactor, bioreactor liquid is provided with in described bioreactor, in described bioreactor liquid, there is Thiobacillus, aerating system is provided with in described bioreactor, there is in described aerating system a fan inlet, the control of the oxygen-supplying amount realized in described bioreactor is run thus the oxidation-reduction potential controlled in described bioreactor by described blower variable frequency, when the oxidation-reduction potential value of on-line determination is lower than setting value, then need more air to input in described bioreactor, now the running frequency of described air blast increases; Otherwise the oxidation-reduction potential value in the described bioreactor of on-line determination is higher than setting value, and now the running frequency of described air blast reduces, and reduces the input of air capacity, thus makes oxidation-reduction potential remain within suitable scope; One sulphur settling vessel, in order to separate sulfur and cleaning solution.
2. marsh gas treating system according to claim 1, is characterized in that, also comprises a condensation water tank, and described condensation water tank is connected with the bottom of described methane voltage-stabilizing cabinet, in order to collect the water that in methane voltage-stabilizing cabinet, biogas is separated out.
3. marsh gas treating system according to claim 2, is characterized in that, is provided with a liquid-level switch and a water system in described condensation water tank, and in order to form a water seal, described water seal is leaked from drainpipe in order to prevent biogas.
4. marsh gas treating system according to claim 1, is characterized in that, described biogas outlet is connected and is provided with a biogas flow monitoring equipment between described methane voltage-stabilizing cabinet.
5. marsh gas treating system according to claim 1, is characterized in that, described methane voltage-stabilizing cabinet specifically comprises: a tank body and a floating roof, and described floating roof is connected with the film of described tank body by a polyester textile.
6. marsh gas treating system according to claim 1, is characterized in that, is provided with a level meter in described methane voltage-stabilizing cabinet, in order to monitor the gas position in described methane voltage-stabilizing cabinet.
7. marsh gas treating system according to claim 1, it is characterized in that, described biogas burner, described biogas burner comprises a control device, and described control device specifically comprises: an auxiliary burner, a main burner, an igniter and a temperature sensor.
8. marsh gas treating system according to claim 1, it is characterized in that, the overflow water backflow end of described sulphur settling vessel is connected with described bioreactor, and the sulphur outlet side of described sulphur settling vessel is connected with a sulphur sludge pump, and described stream sludge pump has a sulphur outlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310073742.2A CN103127819B (en) | 2013-03-08 | 2013-03-08 | Methane treatment system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310073742.2A CN103127819B (en) | 2013-03-08 | 2013-03-08 | Methane treatment system |
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| CN103127819A CN103127819A (en) | 2013-06-05 |
| CN103127819B true CN103127819B (en) | 2015-03-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105176614B (en) * | 2015-09-21 | 2017-08-08 | 中国科学院成都生物研究所 | A kind of method of microorganism electrochemical in-situ biogas desulfurization |
| CN112524638B (en) * | 2019-09-19 | 2024-01-30 | 帕克环保技术(上海)有限公司 | Biogas combustion control system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201308814Y (en) * | 2008-11-12 | 2009-09-16 | 帕克环保技术(上海)有限公司 | Biological desulphurization treatment apparatus |
| CN101602971A (en) * | 2009-07-31 | 2009-12-16 | 李旭源 | Biological desulfurization process for biogas |
| CN102371109A (en) * | 2010-08-23 | 2012-03-14 | 北京思践通科技发展有限公司 | Method for removing sulfur from gas containing reductive sulfur |
| CN202358964U (en) * | 2011-12-16 | 2012-08-01 | 东莞理文造纸厂有限公司 | Biogas treatment system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201308814Y (en) * | 2008-11-12 | 2009-09-16 | 帕克环保技术(上海)有限公司 | Biological desulphurization treatment apparatus |
| CN101602971A (en) * | 2009-07-31 | 2009-12-16 | 李旭源 | Biological desulfurization process for biogas |
| CN102371109A (en) * | 2010-08-23 | 2012-03-14 | 北京思践通科技发展有限公司 | Method for removing sulfur from gas containing reductive sulfur |
| CN202358964U (en) * | 2011-12-16 | 2012-08-01 | 东莞理文造纸厂有限公司 | Biogas treatment system |
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Granted publication date: 20150318 Termination date: 20160308 |