CN104087620A - Formula of mixed waste fermentation materials and biogas-slurry-free and biogas-free production process - Google Patents
Formula of mixed waste fermentation materials and biogas-slurry-free and biogas-free production process Download PDFInfo
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- CN104087620A CN104087620A CN201410366623.0A CN201410366623A CN104087620A CN 104087620 A CN104087620 A CN 104087620A CN 201410366623 A CN201410366623 A CN 201410366623A CN 104087620 A CN104087620 A CN 104087620A
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- biogas
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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- Processing Of Solid Wastes (AREA)
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Abstract
The invention relates to a formula of mixed waste fermentation materials and a biogas-slurry-free and biogas-free production process. A large amount of agricultural wastes, such as straws, crop stems and bagasse as main carbon sources and industrial and agricultural waste dregs, such as distiller's grains, chaff and bran as main nitrogen sources are uniformly mixed according to a certain ratio and cut into small pieces, wherein the raw materials do not need to be dried and ground. After biogas is fermented, biogas slurry is subjected to solid-liquid separation, the solid part does not need to be dehydrated and can be directly used as an organic fertilizer and the liquid part is circulated back to be used in the raw material blending process for carrying out acid hydrolysis. No wastewater is discharged in the whole process. According to the entire process, wastes can be changed into treasure, clean energy and an efficient organic fertilizer are produced and the process is both of an important significance for solving the non-point source pollution in rural areas and promoting agro-ecological virtuous cycle.
Description
Technical field
The invention belongs to Biomass Energy Technology field, be specifically related to a kind of mixed waste fermentation material formula and without natural pond liquid biogas production technique.
Background technology
China is large agricultural country, is one of country that stalk resource enriches the most in the world.Statistics according to investigations, within 2011, national stalk theoretical resources amount is 7.9 hundred million tons, amounts to 400,000,000 tons of standard coals.But owing to lacking effective processing mode, most of stalk goes out of use or directly burns, and has not only polluted environment, especially the significant wastage to resource.Utilizing agricultural crop straw to carry out producing methane through anaerobic fermentation, is the stalk recovery energy approach of a clean and effective.Straw methane fermentation energy utilization efficiency is 1.2 ~ 1.9 times of directly burning, and produced simultaneously by product biogas residue and biogas liquid, because it is rich in the nutritive element such as nitrogen, phosphorus, can be effectively applied to agriculture production, improves crop yield.
In recent years, straw methane engineering more and more receives people's concern.But stalk is different from traditional biogas fermentation materials such as feces of livestock and poultry, domestic refuse, domestic sludge, its rich cellulose, hemicellulose, xylogen.Wherein content of cellulose is 40% ~ 55%, hemicellulose level is 10% ~ 25%, content of lignin is 20% ~ 30%.C/N in stalk is higher, therefore in the time of fermentation, need add the raw material that is rich in nitrogen, as rice bran, and cassava vinasse as substratum, maize alcohol lees, wheat bran and whole wheat flour etc., can reduce the fermentation starting time, improves biogas output.Traditional biogas fermentation material such as feces of livestock and poultry, domestic sludge is owing to containing a large amount of moisture, and biogas fermentation material solid concentration is too low, has a large amount of natural pond liquid to reach discharge standard through aerobic or the processing of materialization even depth after having fermented.The present invention adopts natural pond liquid cyclically utilizing batching technology for hydrolyzing can meet the problem of non-wastewater discharge in process of production.
Summary of the invention
The object of the invention is to provide a kind of mixed waste fermentation material formula and without natural pond liquid biogas production technique, in this technique, the component of fermenting marsh gas material is selected can suit measures to local conditions, according to local proportion of crop planting situation, select large agricultural wastes straw, stalk, bagasse etc. as main carbon source, industrial or agricultural disused dreg alcohol grain, chaff class, wheat bran classes etc., as major nitrogen source, mix according to certain ratio, raw material, without drying and pulverizing, is cut into segment.
For achieving the above object, the present invention adopts following technical scheme:
A kind of mixed waste fermentation material is filled a prescription and without natural pond liquid biogas production technique, its mixed waste fermentation material formula is:
Raw material A: straw and bagasse (single or mix all can): 60 ~ 85%; Raw material B:(degreasing) rice bran, Pericarppium arachidis hypogaeae, cassava vinasse as substratum, maize alcohol lees, wheat bran and whole wheat flour (single or mix all can): 15 ~ 40%; Its Raw wet basis and butt all can.
The another kind formula of mixed waste fermentation material of the present invention is:
Raw material A: maize straw, wheat stalk, kaoliang stalk and reed (single or mix all can): 60 ~ 85%; Raw material B:(degreasing) rice bran, cassava vinasse as substratum, maize alcohol lees, wheat bran and whole wheat flour (single or mix all can): 15 ~ 40%; Its Raw wet basis and butt all can.
A kind of mixed waste fermentation material is filled a prescription and without natural pond liquid biogas production technique, it without natural pond liquid biogas production technique is: raw material A and raw material B mix and be placed in hydrolytic decomposition pot, are converted into organic acid; Hydrolytic decomposition pot Raw is continuously pumped in marsh-gas fermentation tank, and fermentation produces biogas; After fermentation certain hour, emit part natural pond solid and liquid separate from fermentor tank, solid part directly can be used as fertilizer (need not dry) without dehydration, and liquid portion cyclically utilizing is to batching hydrolysis in hydrolytic decomposition pot.
Embodiment
Carry out below proportioning fermentation methane taking straw and cassava vinasse as substratum as raw material and the inventive method is described in further detail as example, but protection scope of the present invention is not limited to this.
Embodiment
1) take the rice straw 150g that is crushed to length 20mm, cassava vinasse as substratum 65g, adds reuse natural pond liquid 800g, and then moisturizing is to 3180g, under temperature 35-40 DEG C, agitation condition in souring tank acidolysis 24h.
2) acidolysis all pumps into fermentor tank by material after finishing and ferments, and controlled fermentation temperature is at 38-45 DEG C, and stir speed (S.S.) is controlled at 150-300rpm, and after fermentation 500h, the average gas production rate of 1kg mixing raw material is 0.3m
3.
3) every 24h carries out solid-liquid separation from fermentor tank blowing 1/20, and natural pond slag is as doing fertilizer, and natural pond liquid is back to use in souring tank.
Claims (4)
1. mixed waste fermentation material is filled a prescription and without a natural pond liquid biogas production technique, be it is characterized in that its formula is:
Raw material A: straw and bagasse (single or mix all can): 60 ~ 85%; Raw material B:(degreasing) rice bran, Pericarppium arachidis hypogaeae, cassava vinasse as substratum, maize alcohol lees, wheat bran and whole wheat flour (single or mix all can): 15 ~ 40%; Its Raw wet basis and butt all can.
2. mixed waste fermentation material is filled a prescription and without a natural pond liquid biogas production technique, be it is characterized in that its another kind of formula is:
Raw material A: maize straw, wheat stalk, kaoliang stalk and reed (single or mix all can): 60 ~ 85%; Raw material B:(degreasing) rice bran, cassava vinasse as substratum, maize alcohol lees, wheat bran and whole wheat flour (single or mix all can): 15 ~ 40%; Its Raw wet basis and butt all can.
3. as described in claim 1 and 2, a kind of mixed waste fermentation material is filled a prescription and without natural pond liquid biogas production technique, be it is characterized in that, in raw material A, straw-like materials is cut into 2 ~ 5cm fragment, without pulverizing.
4. mixed waste fermentation material is filled a prescription and without a natural pond liquid biogas production technique, be it is characterized in that its production technique is:
1) raw material A and raw material B mix and are placed in hydrolytic decomposition pot, are converted into organic acid;
2) hydrolytic decomposition pot Raw is continuously pumped in marsh-gas fermentation tank, fermentation produces biogas;
3) after fermentation certain hour, emit part natural pond solid and liquid separate from fermentor tank, solid part directly can be used as fertilizer without dehydration, and liquid portion cyclically utilizing is to batching hydrolysis in hydrolytic decomposition pot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366623.0A CN104087620A (en) | 2014-07-30 | 2014-07-30 | Formula of mixed waste fermentation materials and biogas-slurry-free and biogas-free production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410366623.0A CN104087620A (en) | 2014-07-30 | 2014-07-30 | Formula of mixed waste fermentation materials and biogas-slurry-free and biogas-free production process |
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| Publication Number | Publication Date |
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| CN104087620A true CN104087620A (en) | 2014-10-08 |
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| CN201410366623.0A Pending CN104087620A (en) | 2014-07-30 | 2014-07-30 | Formula of mixed waste fermentation materials and biogas-slurry-free and biogas-free production process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328142A (en) * | 2014-11-15 | 2015-02-04 | 云南省农业科学院农业环境资源研究所 | Method for producing marsh gas by high-solid mixed fermentation of crop straws and vegetable waste |
| CN106755127A (en) * | 2017-04-10 | 2017-05-31 | 河南天冠纤维乙醇有限公司 | A kind of method that alcohol manioc waste produces biogas with stalk coupled fermentation |
| CN109418070A (en) * | 2017-07-04 | 2019-03-05 | 天津市君利种植专业合作社 | Organic cucumber cultivates soil-less culture technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747107A (en) * | 2012-07-20 | 2012-10-24 | 北京化工大学 | Methane fermenting method |
| CN103266136A (en) * | 2013-05-15 | 2013-08-28 | 中国科学院广州能源研究所 | Method for producing biogas through utilizing lignocellulose raw material |
-
2014
- 2014-07-30 CN CN201410366623.0A patent/CN104087620A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747107A (en) * | 2012-07-20 | 2012-10-24 | 北京化工大学 | Methane fermenting method |
| CN103266136A (en) * | 2013-05-15 | 2013-08-28 | 中国科学院广州能源研究所 | Method for producing biogas through utilizing lignocellulose raw material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328142A (en) * | 2014-11-15 | 2015-02-04 | 云南省农业科学院农业环境资源研究所 | Method for producing marsh gas by high-solid mixed fermentation of crop straws and vegetable waste |
| CN106755127A (en) * | 2017-04-10 | 2017-05-31 | 河南天冠纤维乙醇有限公司 | A kind of method that alcohol manioc waste produces biogas with stalk coupled fermentation |
| CN109418070A (en) * | 2017-07-04 | 2019-03-05 | 天津市君利种植专业合作社 | Organic cucumber cultivates soil-less culture technique |
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Application publication date: 20141008 |