CN106995236A - A kind of cellulose ethanol waste water produces biogas method - Google Patents
A kind of cellulose ethanol waste water produces biogas method Download PDFInfo
- Publication number
- CN106995236A CN106995236A CN201710271494.0A CN201710271494A CN106995236A CN 106995236 A CN106995236 A CN 106995236A CN 201710271494 A CN201710271494 A CN 201710271494A CN 106995236 A CN106995236 A CN 106995236A
- Authority
- CN
- China
- Prior art keywords
- waste water
- fermentation
- cellulose ethanol
- tank body
- biogas
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
-
- 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
Abstract
Biogas method is produced the invention discloses a kind of cellulose ethanol waste water, is comprised the following steps：After the cellulose ethanol and waste water of cellulose ethanol factory are mixed with the excrement of cultivation factory poultry discharge by different proportion first, it imported into multi-functional anaerobic ferment devices and is fermented, during the fermentation, biogas produced by multi-functional anaerobic ferment devices is by for the combustion gas and generating in life, biogas residue in multi-functional anaerobic ferment devices is that organic fertilizer is used for agricultural production by deep processing, will be recovered to be back in multi-functional anaerobic ferment devices by the biogas slurry after anaerobic fermentation and carry out fermentation next time and use.The present invention improves raw material energy conversion rate by the research to the key technology such as fermentation liquor backflow circulating technology, cellulose ethanol waste water solid-state fermentation methane production technique in cellulose ethanol waste water biogas utilization, and technical support is provided for development green circulation economy.
Description
Technical field
The present invention relates to resource and environmental technology field, biogas method is produced more particularly, to a kind of cellulose ethanol waste water.
Background technology
Energy problem is an important theme in sustainable development.As economic continues to develop, energy shortage and ring
Border pollution problem becomes increasingly conspicuous.The research and development of cellulose ethanol turn into the emphasis of current various countries' new resources strategy, and China is also energetically
Develop non-grain ethanol.Henan Tianguan Enterprise Group Co has completed ten thousand tons of straw ethanol tacklings of key scientific and technical problems at present, and has transported
30,000 tons of straw ethanol projects of row.But raw material Multi-class propagation is realized in production, improves business efficiency, it is necessary to the fiber in later stage
Alcohol wastewater does deep development utilization.Henan Tian Guan groups are ripe to traditional ethanol production twice laid technology, but in industry
Also technology is needed to constantly bring forth new ideas in change process.By to fermentation liquor backflow circulating technology, fiber in cellulose ethanol waste water biogas utilization
The research of the key technologies such as alcohol wastewater solid state fermentation process for producing biogas, realizes stalk bio-ethanol-two grades of biogas energy
Gradient is produced, and improves raw material energy conversion rate, and technical support is provided for development green circulation economy.China pays much attention to fuel second
The development of alcohol, and put into effect substantial amounts of encouragement subsidy policy.These measures have stimulated the development of Chinese fuel ethanol industry
[54].Chinese Academy of Sciences's issue《Industrial biotechnology white paper 2015》Display national bio-fuel ethanol by the end of 2014
About 2,160,000 tons of annual production, as global the third-largest bio-fuel alcohol production state and applies state, is only second to the U.S. and Brazil.It is fine
Plain the developing rapidly for fuel ethanol industry of dimension causes the discharge capacity of cellulose ethanol waste water to increase.Pass through the reason to cellulose ethanol waste water
Change analysis, cellulosic ethanol waste water is high-concentration acidic wastewater organic wastewater, wherein COD, total nitrogen (TN, Total Nitrogen), VFA
Content etc. index is significantly larger than national sewage discharge index and can not directly discharged.Therefore it is simple by being carried out to waste water
Not only treatment effect is bad and input cost is too high for physics and chemistry processing.So, pass through the profit of fermentation again to cellulose ethanol waste water
Method processing waste water not only can largely consume the content of organic matter in waste water, and obtained methane energy is used to generate electricity or direct
Replace natural gas supply user's burning.Cellulose ethanol waste water (waste water obtained after production cellulose ethanol distillation) has carried out anaerobism hair
The optimization preliminary experiment of ferment parameter.Waste water is subjected to separation of solid and liquid using plate compression method, respectively with isolated waste liquid, solid waste
It is that Orthogonal Method progress biogas fermentation is respectively adopted in raw material with unsegregated waste water, optimization obtains optimal conditions of fermentation.Manufacture and design
Multi-functional anaerobic ferment devices are used for pilot scale fermentation.At present, the fossil fuel such as oil, coal, natural gas is on price is continuous
While rising, the danger of resource exhaustion is faced with.And the dioxy that fossil energy is discharged during production and use
Change carbon and all kinds of dusty gas, different degrees of pollution is caused to environment.Bio-ethanol with its it is environmentally friendly, renewable the advantages of
As a kind of important alternative energy source.From use grain as the first generation bio-ethanol of raw material different, second generation bio-ethanol
And cellulose ethanol, it is using fibers such as stalk, crops shell skin stalks as raw material.Along with the production of cellulose ethanol, one is had
Organic wastewater is divided to produce.The CODCr of waste water is in 40000-50000mg/ L, and pH is between 5~6, and water temperature is 55
Between~60 DEG C.Direct discharging of waste water can not only cause Heavy environmental pollution, and can cause the significant wastage of resource.
The content of the invention
The present invention is in order to overcome the defect of prior art, present invention solves the technical problem that being：A kind of fiber second is provided
Alcohol waste water produces biogas method, not only may be used while waste water can be handled by the method that utilizes of fermenting again to cellulose ethanol waste water
Largely to consume the content of organic matter in waste water, obtained methane energy is used to generate electricity or directly substitution natural gas supply user's combustion
Burn.
In order to solve the above-mentioned technical problem, the cellulose ethanol waste water production biogas method that the present invention is provided, including following step
Suddenly：After first mixing the cellulose ethanol and waste water of cellulose ethanol factory by different proportion with the excrement of cultivation factory poultry discharge, lead
Enter into multi-functional anaerobic ferment devices and fermented, during the fermentation, the biogas produced by multi-functional anaerobic ferment devices
By for the combustion gas and generating in life, biogas residue in multi-functional anaerobic ferment devices is that organic fertilizer is used for agriculture by deep processing
Industry is produced, and will be recovered to be back in multi-functional anaerobic ferment devices ferment next time by the biogas slurry after anaerobic fermentation makes
With.
The cellulose ethanol waste water produces biogas method：It is raw materials used including following several：Bacterium solution, cellulose ethanol give up
Water, cow dung, pig manure, chicken manure.Chicken manure, pig manure, three kinds of common excrements of animals of cow dung are employed as the supplement nitrogen of the fermentation system
Source, the cow dung, pig manure, the nitrogen source of chicken manure are set to 4%, 6%, 8% and 10% 4 gradient, and tinning rate is set to 90%, and bacterium solution is set
It is that 7.5, TS is set to 12% to put 20%, pH.
The fermentation and acid phase adjusts zymotic fluid pH to 7.5 or so with 40%NaOH solution, and amount and the nitrogen source of total solid promote
Carbon-nitrogen ratio in fermentation raw material is in (25~30):Between 1.
During the progress tinning, the pH of each fermentation tank is adjusted to 7.5.
The multi-functional anaerobic ferment devices, including tank body, the tank body over top are provided with motor, the tank body top
Face is respectively equipped with the middle part of gas outlet, the outlet of backflow gas and temperature sensor, the tank body top surface and offered in through hole, the through hole
Stirring shaft is set with, the top of the stirring shaft is fixedly connected with motor output revolving shaft above the tank body, the stirring
Spool axle bottom is provided with agitator, and tank body side top side wall is provided with charging aperture, the tank body opposite side side wall upper part
Phegma import, hot water outlet are respectively equipped with, bottom is respectively equipped with phegma outlet, hot water inlet, the tank base difference
Provided with backflow gas entrance, discharging opening, the tank wall is set with warming plate, and the tank body side is provided with water-bath, the tank
The water-bath that the hot water inlet of body opposite side side wall upper part hot water outlet and bottom is set by pipeline with tank body side is fixed
Connection, the tank base periphery is provided with supporting leg.
It is provided between the phegma import and phegma outlet in the middle part of conduit, the conduit and is provided with sewage self priming pump, institute
State and siphunculus is provided between hot water inlet and water-bath, air-conditioning self priming pump is provided with the middle part of the siphunculus.
Temperature detect switch (TDS) is provided between the temperature sensor of the air-conditioning self priming pump and the tank body top surface.
Beneficial effect of the present invention：By the cellulose ethanol and waste water of cellulose ethanol factory with cultivating the excrement of factory's poultry discharge by not
After mixing in proportion, it imported into multi-functional anaerobic ferment devices and is fermented, after fermentation, multi-functional anaerobic ferment devices institute
Biogas residue for the combustion gas and generating in life, and in multi-functional anaerobic ferment devices is to have by deep processing by the biogas of generation
Machine fertilizer is used for agricultural production, will be recovered and is back in multi-functional anaerobic ferment devices under progress by the biogas slurry of anaerobic fermentation
Secondary fermentation is used.The present invention is by fermentation liquor backflow circulating technology, cellulose ethanol waste water in cellulose ethanol waste water biogas utilization
The technologies such as the technique of Produced by Solid-state Fermentation biogas, improve raw material energy conversion rate, and technical support is provided for development green circulation economy.
Brief description of the drawings
Fig. 1 is a kind of cellulose ethanol waste water production biogas method process route chart of the invention；
Fig. 2 is multi-functional anaerobic ferment devices overall structure diagram of the invention.
Embodiment
The embodiment to the present invention is described in detail below in conjunction with the accompanying drawings.As shown in Figure 1-2：A kind of fiber second
Alcohol waste water produces biogas method, comprises the following steps：First by the cellulose ethanol and waste water of cellulose ethanol factory and cultivation factory poultry
After the excrement of discharge is by different proportion mixing, it imported into multi-functional anaerobic ferment devices and is fermented, it is during the fermentation, many
Biogas produced by function anaerobic ferment devices is by for the combustion gas and generating in life, the natural pond in multi-functional anaerobic ferment devices
Slag is that organic fertilizer is used for agricultural production by deep processing, will be recovered to be back to by the biogas slurry after anaerobic fermentation and multi-functional detest
Fermentation next time is carried out in aerobe fermentation device to use.
The cellulose ethanol waste water produces biogas method：It is raw materials used including following several：Bacterium solution, cellulose ethanol give up
Water, cow dung, pig manure, chicken manure.Chicken manure, pig manure, three kinds of common excrements of animals of cow dung are employed as the supplement nitrogen of the fermentation system
Source, the cow dung, pig manure, the nitrogen source of chicken manure are set to 4%, 6%, 8% and 10% 4 gradient, and tinning rate is set to 90%, and bacterium solution is set
It is that 7.5, TS is set to 12% to put 20%, pH.
The fermentation and acid phase adjusts zymotic fluid pH to 7.5 or so with 40%NaOH solution, and amount and the nitrogen source of total solid promote
Carbon-nitrogen ratio in fermentation raw material is in (25~30):Between 1.
During the progress tinning, the pH of each fermentation tank is adjusted to 7.5.
The multi-functional anaerobic ferment devices, including tank body 1, the over top of tank body 1 are provided with motor 2, the tank body
1 top surface is respectively equipped with the middle part of gas outlet 3, backflow gas outlet 4 and temperature sensor 5, the top surface of tank body 1 and offers through hole, institute
State and stirring shaft 6 is set with through hole, the top of the stirring shaft 6 is fixed with the output revolving shaft of 1 top motor of tank body 3 to be connected
Connect, the axostylus axostyle bottom of stirring shaft 6 is provided with agitator 7, the side top side wall of tank body 1 is provided with charging aperture 8, the tank body
1 opposite side side wall upper part is respectively equipped with phegma import 9, hot water outlet 10, and bottom is respectively equipped with phegma outlet 11, hot water and entered
Mouth 12, the bottom of tank body 1 is respectively equipped with backflow gas entrance 13, discharging opening 14, and the side of tank body 1 is provided with water-bath 15, institute
The opposite side side wall upper part hot water outlet 10 of tank body 1 is stated with the hot water inlet 12 of bottom by pipeline and the setting of the side of tank body 1
Water-bath 15 is fixedly connected, and the outer wall of tank body 1 is set with warming plate 16, and the bottom periphery of tank body 1 is provided with supporting leg 17.
It is provided between the phegma import 9 and phegma outlet 11 in the middle part of conduit, the conduit and is provided with sewage self priming pump
18, it is provided between the hot water inlet and water-bath in the middle part of siphunculus, the siphunculus and is provided with air-conditioning self priming pump 19.
Temperature detect switch (TDS) 20 is provided between the temperature sensor 5 of air-conditioning self priming pump 19 and the tank body 1 top surface.
When the present invention is used:The raw material of fermentation is prepared in proportion, passes through the charging aperture 8 of the side top side wall of tank body 1
It imported into tank body 1, hot water will be imported into tank by the hot water in subsequent water-bath by air-conditioning self priming pump 19 from hot water inlet 12
In body 1, required temperature when making to keep fermenting in tank body 1, when tank body temperature is less than temperature needed for fermentation, temperature sensor
Temperature in tank body is transferred to temperature detect switch (TDS) 20 by 5, then controls air-conditioning self priming pump 19 to be added water into tank body 1 from temperature detect switch (TDS) 20,
When the dilutional hyponatremia in tank body 1, it can be imported into water-bath 15 and be carried out again by the phegma outlet 11 of the upper lateral part of tank body 1 one
Heating, starts the power supply of motor 2 of the top of tank body 1 while water filling, and motor 2 drives the agitator 7 of the axostylus axostyle bottom of stirring shaft 6
Fermentation raw material in tank body 1 is stirred evenly, the power supply of motor 2 is then turned off, the raw material of fermentation is left to ferment in tank body 1, fermentation
When the gas that produces discharged by the backflow gas outlet 4 at the top of tank body 1, then entered by the backflow gas entrance 13 of the bottom of tank body 1
Fermented again in tank body 1, and the liquid in fermenting is suctioned out liquid from phegma outlet 11 by sewage self priming pump 18, then
It is poured into by phegma import 9 in tank body 1, biogas after fermentation will be discharged by the gas outlet 3 at the top of tank body 1, by place
It is used to live and produce after reason, and the material residue produced after fermenting discharges the discharging opening 14 by the bottom of tank body 1, by deep processing
It is used for agricultural production after processing.
Claims (7)
1. a kind of cellulose ethanol waste water produces biogas method, it is characterised in that：Comprise the following steps：First by cellulose ethanol factory
After cellulose ethanol and waste water are mixed with the excrement of cultivation factory poultry discharge by different proportion, multi-functional anaerobic ferment devices are imported into
Interior to be fermented, during the fermentation, the biogas produced by multi-functional anaerobic ferment devices is by for the combustion gas in life and hair
Biogas residue in electricity, multi-functional anaerobic ferment devices is used for agricultural production by deep processing for organic fertilizer, after anaerobic fermentation
Biogas slurry will be recovered to be back in multi-functional anaerobic ferment devices and carry out fermentation next time and use.
2. a kind of cellulose ethanol waste water production biogas method according to claim 1, it is characterised in that：The cellulose ethanol
Waste water produces biogas method：It is raw materials used including following several：Bacterium solution, cellulose ethanol waste water, cow dung, pig manure, chicken manure,
Chicken manure, pig manure, three kinds of common excrements of animals of cow dung are employed as the supplement nitrogen source of the fermentation system, the cow dung, pig
Excrement, the nitrogen source of chicken manure are set to 4%, 6%, 8% and 10% 4 gradient, and tinning rate is set to 90%, and bacterium solution sets 20%, pH to be 7.5,
TS is set to 12%.
3. a kind of cellulose ethanol waste water production biogas method according to claim 1, it is characterised in that：The fermentation and acid
Phase adjusts zymotic fluid pH to 7.5 or so with 40%NaOH solution, and amount and the nitrogen source of total solid promote the carbon-nitrogen ratio in fermentation raw material to exist
(25~30):Between 1.
4. a kind of cellulose ethanol waste water production biogas method according to claim 1, it is characterised in that：The carry out tinning
When, the pH of each fermentation tank is adjusted to 7.5.
5. a kind of cellulose ethanol waste water production biogas method according to claim 1, it is characterised in that：It is described multi-functional to detest
Aerobe fermentation device, including tank body, the tank body over top are provided with motor, and the tank body top surface is respectively equipped with gas outlet, backflow
Gas is exported and temperature sensor, is offered in the middle part of the tank body top surface in through hole, the through hole and is set with stirring shaft, described to stir
The top for mixing rotating shaft is fixedly connected with motor output revolving shaft above the tank body, and the stirring shaft axostylus axostyle bottom is provided with stirring
Device, tank body side top side wall is provided with charging aperture, and the tank body opposite side side wall upper part is respectively equipped with phegma import, heat
Water out, bottom is respectively equipped with phegma outlet, hot water inlet, and the tank base is respectively equipped with backflow gas entrance, discharging opening,
The tank body side is provided with water-bath, and the hot water inlet of the tank body opposite side side wall upper part hot water outlet and bottom passes through pipe
The water-bath that road is set with tank body side is fixedly connected, and the tank wall is set with warming plate, and the tank base periphery is set
There is supporting leg.
6. a kind of cellulose ethanol waste water production biogas method according to claim 5, it is characterised in that：The phegma enters
Mouthful be provided between phegma outlet in the middle part of conduit, the conduit and to be provided with sewage self priming pump, the hot water inlet and water-bath it
Between be provided with the middle part of siphunculus, the siphunculus and be provided with air-conditioning self priming pump.
7. a kind of cellulose ethanol waste water production biogas method according to claim 5, it is characterised in that：The air-conditioning self-priming
Temperature detect switch (TDS) is provided between the temperature sensor of pump and the tank body top surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710271494.0A CN106995236A (en) | 2017-04-24 | 2017-04-24 | A kind of cellulose ethanol waste water produces biogas method |
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| CN201710271494.0A CN106995236A (en) | 2017-04-24 | 2017-04-24 | A kind of cellulose ethanol waste water produces biogas method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110117620A1 (en) * | 2008-07-10 | 2011-05-19 | Johann Rietzler | Process for producing methane from process water and biogenic material |
| CN103030211A (en) * | 2012-12-10 | 2013-04-10 | 广西大学 | Method for treating molasses alcohol wastewater |
| CN205473808U (en) * | 2016-04-07 | 2016-08-17 | 南阳师范学院 | Adopt fermenting installation of transmission belt stirring |
-
2017
- 2017-04-24 CN CN201710271494.0A patent/CN106995236A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110117620A1 (en) * | 2008-07-10 | 2011-05-19 | Johann Rietzler | Process for producing methane from process water and biogenic material |
| CN103030211A (en) * | 2012-12-10 | 2013-04-10 | 广西大学 | Method for treating molasses alcohol wastewater |
| CN205473808U (en) * | 2016-04-07 | 2016-08-17 | 南阳师范学院 | Adopt fermenting installation of transmission belt stirring |
Non-Patent Citations (4)
| Title |
|---|
| 刘凯: "《农村能源建设与管理实用手册》", 30 June 2005, 北京北大方正电子出版社 * |
| 李传统: "《新能源与可再生能源技术 第2版》", 31 August 2012, 东南大学出版社 * |
| 杨秀华 等: "《正交试验选择纤维素乙醇废水与粪便共发酵产沼气的最优发酵条件》", 《黑龙江畜牧兽医》 * |
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Application publication date: 20170801 |