CN108220346A - Tail vegetable utilization process suitable for large-scale biogas - Google Patents
Tail vegetable utilization process suitable for large-scale biogas Download PDFInfo
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- CN108220346A CN108220346A CN201810174826.8A CN201810174826A CN108220346A CN 108220346 A CN108220346 A CN 108220346A CN 201810174826 A CN201810174826 A CN 201810174826A CN 108220346 A CN108220346 A CN 108220346A
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- Prior art keywords
- biogas
- waste dish
- waste
- raw material
- vegetables
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- 235000013311 vegetables Nutrition 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 238000000855 fermentation Methods 0.000 claims abstract description 25
- 230000004151 fermentation Effects 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims abstract description 8
- 235000015192 vegetable juice Nutrition 0.000 claims abstract description 8
- 235000011837 pasties Nutrition 0.000 claims abstract description 5
- 229920002678 cellulose Polymers 0.000 claims abstract description 4
- 239000001913 cellulose Substances 0.000 claims abstract description 4
- 210000003608 fece Anatomy 0.000 claims abstract description 4
- 244000144972 livestock Species 0.000 claims abstract description 4
- 244000144977 poultry Species 0.000 claims abstract description 4
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 9
- 239000002893 slag Substances 0.000 claims description 4
- 241000283690 Bos taurus Species 0.000 claims description 3
- 241001494479 Pecora Species 0.000 claims description 3
- 235000012055 fruits and vegetables Nutrition 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 239000010871 livestock manure Substances 0.000 abstract 1
- 230000020477 pH reduction Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P5/00—Preparation of hydrocarbons or halogenated hydrocarbons
- C12P5/02—Preparation of hydrocarbons or halogenated hydrocarbons acyclic
- C12P5/023—Methane
-
- 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
-
- 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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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Zoology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a waste vegetable utilization process suitable for large-scale biogas, and relates to the technical field of energy sources; the operation steps are as follows: crushing the tail vegetables sent by vegetable processing enterprises into powdery or pasty materials by using a large hammer mill; the crushed vegetable tailing raw materials are sent into a screw press to be extruded, so that the vegetable residues and the vegetable juice are fully separated, and simultaneously, the cellulose of the vegetables is further destroyed; the squeezed waste vegetable juice automatically flows into a biogas slurry pool homogenizing pool, is mixed with biogas slurry and livestock and poultry manure which are refluxed by an anaerobic tank, the carbon-nitrogen ratio of the fermentation raw material is adjusted, and the mixture is fed into an anaerobic fermentation tank by a screw pump to produce biogas; and adjusting the pH value. The waste vegetables are used for large-scale biogas production, the waste vegetables can be rapidly treated in a large amount, the pollution to the environment is reduced, the treated waste vegetables do not produce secondary pollution, and the problem of serious acidification in the process of producing biogas from the waste vegetables is solved.
Description
Technical field
The present invention relates to energy technology fields, and in particular to a kind of waste dish suitable for large-sized biogas utilizes technique.
Background technology
Large-sized biogas refers to that producing methane quantity daily reaches 300m3Scale biogas production project, have in recent years in China
Tremendous development, the design daily output tolerance of many large-sized biogas projects have reached 20000m3/ more than d, since fermentation raw material comes
Source, property are different, and cost of material and factor of created gase also have larger gap.Fermentation raw material cost how is reduced, improves biogas anaerobic
The gas production of fermentation tank is the Main way of large-sized biogas project research.
The research data of biogas fermentation material is primarily directed to the small biogas in rural area at present, main direction of studying be raw material carbon-nitrogen ratio,
The influence of temperature and different methane strains to gas production, it is less for industrialization large-sized biogas raw material proportioning research.
With the development of Rural Land Circulation and intensive agricultural, the pattern of farming of each growing area is different, vegetable seed
The production in growing area domain and storage link, often have a large amount of waste dish that cannot utilize very well, daily hundreds of tons even thousands of tonnages
Waste dish topples over and causes seriously to pollute to local environment carelessly.About the offal in vegetable cultivation, process, i.e. waste dish, use
In the technology of biogas fermentation, though have some researchs at present, due to waste dish water content is big, anaerobic fermentation raw material is easily acidified,
CO in biogas2The reasons such as composition height, application are very undesirable.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of simple in structure, reasonable design makes
Technique is utilized with the waste dish for being conveniently suitable for large-sized biogas, waste dish is produced for large-sized biogas, it being capable of rapid, high volume processing
Waste dish reduces its pollution to environment, and treated that waste dish does not generate secondary pollution, while also solves waste dish production biogas
It is acidified serious problems in the process.
To achieve the above object, the technical solution adopted by the present invention is：Its operating procedure is as follows：
1st, the broken and squeezing of waste dish：
Waste dish raw material is ground into powdery or paste by the 1.1, waste dish for sending fruits and vegetables enterprise using large-scale beater disintegrating machine
Shape material, to increase its mobility；
1.2nd, the waste dish raw material after crushing is sent into pressafiner to squeeze, dish slag is made to be sufficiently separated with vegetable juice, while into
One step destroys the cellulose of vegetables；
2nd, biogas generates：
Obtained after squeezing waste dish juice gravity flow enter biogas slurry pond homogenate pond in, with anaerobic jar reflux biogas slurry, feces of livestock and poultry mix,
The carbon-nitrogen ratio of fermentation raw material is adjusted, anaerobic fermentation tank production biogas is pumped into screw rod；
3rd, acid-base value is adjusted：
Pass through cattle and sheep excrement and waste dish juice to match, adjust acid-base value, it is ensured that the PH of fermentation raw material is more than 7.0, using rational
Proportioning solves the problems, such as easily to be acidified in waste dish fermentation process, reduces cost of material.
Further, the medium-and-large-sized beater disintegrating machine of the step 1 by waste dish raw material be ground into below 3cm powdery or
Pasty material.
Further, the carbon-nitrogen ratio of the fermentation raw material in the step 2 is 25：1.
After above-mentioned technique, the present invention has the beneficial effect that：
1st, scale, the harmless treatment of waste dish are realized, which can handle 200 tons of waste dish or more daily；
2nd, marsh gas raw materials cost has been saved：Waste dish juice gas forming amount, after measured, in waste dish COD contents be more than 30000mg/l, one
As often remove 1kgCOD and can generate 0.34 ~ 0.38m3Biogas, measured value 0.35m3Left and right；700kg is generated after 1 ton of waste dish squeezing
Vegetable juice, the COD contents in vegetable juice are calculated by 30000mg/l, then the methane quantity that 1 ton of waste dish generates is：30000/1000×700×
0.35/1000=7.35m3, average daily by 200 tons of waste dish are handled, then daily vegetable juice can produce about 1400m3Biogas；For design
Daily output methane quantity is 5000m3Biogas project, need 16 tons of dry matter fermentation raw material daily, original replaced with 200 tons of waste dish juice
Material is equivalent to and saves 4.5 tons of dry matters；
3rd, water-saving result：Wet method biogas anaerobic technology, daily rate of water make-up are the 5--10% of total measurement (volume), if without wastewater source,
Fresh water is must be supplemented with, for north water deficit area, water resources consumption is larger；The utilization of waste dish juice can save new daily
Fresh 200 tons of water plays the role of the decline of enterprise water use cost very big.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other attached drawings according to these attached drawings.
Fig. 1 is the work flow diagram of the present invention.
Specific embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
Referring to as shown in Figure 1, present embodiment the technical solution adopted is that：Its operating procedure is as follows：
1st, the broken and squeezing of waste dish：
Waste dish raw material is ground into powdery or paste by the 1.1, waste dish for sending fruits and vegetables enterprise using large-scale beater disintegrating machine
Shape material, to increase its mobility；
1.2nd, the waste dish raw material after crushing is sent into pressafiner to squeeze, dish slag is made to be sufficiently separated with vegetable juice, while into
One step destroys the cellulose of vegetables；
2nd, biogas generates：
Obtained after squeezing waste dish juice gravity flow enter biogas slurry pond homogenate pond in, with anaerobic jar reflux biogas slurry, feces of livestock and poultry mix,
The carbon-nitrogen ratio of fermentation raw material is adjusted, anaerobic fermentation tank production biogas is pumped into screw rod；
3rd, acid-base value is adjusted：
Pass through cattle and sheep excrement and waste dish juice to match, adjust acid-base value, it is ensured that the PH of fermentation raw material is more than 7.0, using rational
Proportioning solves the problems, such as easily to be acidified in waste dish fermentation process, reduces cost of material.
Further, the medium-and-large-sized beater disintegrating machine of the step 1 by waste dish raw material be ground into below 3cm powdery or
Pasty material.
Further, the carbon-nitrogen ratio of the fermentation raw material in the step 2 is 25：1.
It produces methane quantity in present embodiment daily and reaches more than 2000m3, waste dish, enterprise day processing can be consumed in batches
200 tons of waste dish or more, can form scale benefit；There is mating profession to crush, press apparatus.Dish slag after expression separation can be used
It is higher in production feed or organic fertilizer, added value；Technology has stronger economic and technical strength using enterprise；By adjusting biogas
Fermentation raw material matches, and makes the pH value of mixed material more than 7.0, to ensure production rate of methane, effective ingredient CH4 contents in biogas
Reach more than 50%.
After above-mentioned technique, present embodiment has the beneficial effect that：Present embodiment provides a kind of structure letter
Single, reasonable design, the waste dish easy to use suitable for large-sized biogas are produced waste dish for large-sized biogas, energy using technique
Enough rapid, high volume processing waste dish, reduce its pollution to environment, and treated that waste dish does not generate secondary pollution, while also solves
Serious problems are acidified in waste dish production process of methane.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, without departing from the spirit and scope of technical solution of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (3)
1. a kind of waste dish suitable for large-sized biogas utilizes technique, it is characterised in that：Its operating procedure is as follows：
(1), the broken and squeezing of waste dish：
(1.1), the waste dish for sending fruits and vegetables enterprise, using large-scale beater disintegrating machine by waste dish raw material be ground into powdery or
Pasty material；
(1.2), the waste dish raw material after crushing is sent into pressafiner to squeeze, dish slag is made to be sufficiently separated with vegetable juice, simultaneously
Further destroy the cellulose of vegetables；
(2), biogas generates：
Obtained after squeezing waste dish juice gravity flow enter biogas slurry pond homogenate pond in, with anaerobic jar reflux biogas slurry, feces of livestock and poultry mix,
The carbon-nitrogen ratio of fermentation raw material is adjusted, anaerobic fermentation tank production biogas is pumped into screw rod；
(3), acid-base value is adjusted：
Pass through cattle and sheep excrement and waste dish juice to match, adjust acid-base value, it is ensured that the PH of fermentation raw material is more than 7.0, using rational
Proportioning solves the problems, such as easily to be acidified in waste dish fermentation process.
2. a kind of waste dish suitable for large-sized biogas according to claim 1 utilizes technique, it is characterised in that：The step
Suddenly waste dish raw material is ground into the powdery or pasty material of below 3cm by (1) medium-and-large-sized beater disintegrating machine.
3. a kind of waste dish suitable for large-sized biogas according to claim 1 utilizes technique, it is characterised in that：The step
Suddenly the carbon-nitrogen ratio of the fermentation raw material in (2) is 25：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174826.8A CN108220346A (en) | 2018-03-02 | 2018-03-02 | Tail vegetable utilization process suitable for large-scale biogas |
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|---|---|---|---|
| CN201810174826.8A CN108220346A (en) | 2018-03-02 | 2018-03-02 | Tail vegetable utilization process suitable for large-scale biogas |
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| CN108220346A true CN108220346A (en) | 2018-06-29 |
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| CN201810174826.8A Pending CN108220346A (en) | 2018-03-02 | 2018-03-02 | Tail vegetable utilization process suitable for large-scale biogas |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191475A (en) * | 2018-03-02 | 2018-06-22 | 甘肃元生农牧科技有限公司 | Process for producing organic fertilizer from waste vegetables on large scale |
| CN108927400A (en) * | 2018-07-02 | 2018-12-04 | 浙江华庆元生物科技有限公司 | A kind of waste dish pre-treating technology |
| CN108997036A (en) * | 2018-07-20 | 2018-12-14 | 济南大学 | A kind of quick volume reduction of vegetables waste dish and resource utilization processing system |
| CN109174909A (en) * | 2018-09-05 | 2019-01-11 | 北京金甲壳虫环境科技股份有限公司 | A kind of market of farm produce waste dish Novel reclamation utilizes technique |
| CN109608242A (en) * | 2019-02-12 | 2019-04-12 | 山东省农业科学院畜牧兽医研究所 | The method of Chinese cabbage waste dish production fertilizer |
| CN109627101A (en) * | 2019-02-01 | 2019-04-16 | 中国科学院沈阳应用生态研究所 | A kind of ladder recycling processing method of leaf vegetables waste dish |
| CN109722400A (en) * | 2019-03-20 | 2019-05-07 | 黑龙江八一农垦大学 | A kind of composite bacteria agent for waste dish anaerobic fermentation |
| CN111549078A (en) * | 2020-06-05 | 2020-08-18 | 甘肃农业大学 | Tail vegetable ecological cycle treatment and utilization process |
| CN112830820A (en) * | 2021-02-23 | 2021-05-25 | 王耀文 | System and method for producing environment-friendly enzyme and feed raw materials from large-scale tailstocks |
| CN115259907A (en) * | 2022-08-22 | 2022-11-01 | 上海交通大学 | Organic liquid fertilizer prepared from waste vegetables and preparation method and application thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108191475A (en) * | 2018-03-02 | 2018-06-22 | 甘肃元生农牧科技有限公司 | Process for producing organic fertilizer from waste vegetables on large scale |
| CN108927400A (en) * | 2018-07-02 | 2018-12-04 | 浙江华庆元生物科技有限公司 | A kind of waste dish pre-treating technology |
| CN108927400B (en) * | 2018-07-02 | 2021-05-25 | 浙江华庆元生物科技有限公司 | Pretreatment process for waste vegetables |
| CN108997036A (en) * | 2018-07-20 | 2018-12-14 | 济南大学 | A kind of quick volume reduction of vegetables waste dish and resource utilization processing system |
| CN109174909A (en) * | 2018-09-05 | 2019-01-11 | 北京金甲壳虫环境科技股份有限公司 | A kind of market of farm produce waste dish Novel reclamation utilizes technique |
| CN109627101A (en) * | 2019-02-01 | 2019-04-16 | 中国科学院沈阳应用生态研究所 | A kind of ladder recycling processing method of leaf vegetables waste dish |
| CN109608242A (en) * | 2019-02-12 | 2019-04-12 | 山东省农业科学院畜牧兽医研究所 | The method of Chinese cabbage waste dish production fertilizer |
| CN109722400A (en) * | 2019-03-20 | 2019-05-07 | 黑龙江八一农垦大学 | A kind of composite bacteria agent for waste dish anaerobic fermentation |
| CN111549078A (en) * | 2020-06-05 | 2020-08-18 | 甘肃农业大学 | Tail vegetable ecological cycle treatment and utilization process |
| CN112830820A (en) * | 2021-02-23 | 2021-05-25 | 王耀文 | System and method for producing environment-friendly enzyme and feed raw materials from large-scale tailstocks |
| CN115259907A (en) * | 2022-08-22 | 2022-11-01 | 上海交通大学 | Organic liquid fertilizer prepared from waste vegetables and preparation method and application thereof |
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Application publication date: 20180629 |
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