CN107858382A - A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation - Google Patents
A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation Download PDFInfo
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- CN107858382A CN107858382A CN201711367970.5A CN201711367970A CN107858382A CN 107858382 A CN107858382 A CN 107858382A CN 201711367970 A CN201711367970 A CN 201711367970A CN 107858382 A CN107858382 A CN 107858382A
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- molasses
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- evaporation condensate
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- 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
- C12P7/00—Preparation of oxygen-containing organic compounds
- C12P7/02—Preparation of oxygen-containing organic compounds containing a hydroxy group
- C12P7/04—Preparation of oxygen-containing organic compounds containing a hydroxy group acyclic
- C12P7/06—Ethanol, i.e. non-beverage
- C12P7/08—Ethanol, i.e. non-beverage produced as by-product or from waste or cellulosic material substrate
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation, belongs to alcoholic fermentation and alcohol industry wastewater utilization field.The present invention reduces floor space, investment in fixed assets and the operating cost of aerobic sigestion workshop section by by molasses alcohol waste water evaporation condensate reuse, reducing the load of aerobic sigestion workshop section；The discharge capacity of waste water is reduced, while has saved substantial amounts of water resource.
Description
Technical field
The present invention relates to a kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation, belongs to alcohol hair
Ferment and alcohol industry wastewater utilization field.
Background technology
Molasses are a kind of byproducts of sugarcane or beet factory, wherein containing a large amount of fermentable sugars, thus alcohol can be used as to send out
The raw material of ferment.Molasses-spirit is because raw material sources are simple, cost of material is relatively low, manufacturing technology is less demanding, producing equipment investment
Less, the reason such as alcohol product quality height, have in sugarcane (South China) or the beet place of production (North China) compared with starchy material
Obvious advantage.But the processing of waste water caused by molasses-spirit production process is but more difficult, it has also become limitation rum
The bottleneck problem of essence development.Molasses alcohol waste water have yield big (8~15 tons of waste water/ton alcohol), solid content it is high (10~
12%), COD contents high (8~120,000 mg/L), colourity high (2000~5000 times), acid strong (pH3.0~4.5), sulfate contain
The features such as amount big (5000~7000mg/L).So if directly discharging, serious water body or soil pollution can be caused.Rum
Because sulfate concentration is high therefore different from starch material alcohol waste water in smart waste water, it is impossible to which use industrially makes extensively at present
The handling process of " anaerobic digestion-aerobic sigestion-advanced treating-qualified discharge ".Therefore, have developed agriculture both at home and abroad fills method
With two kinds of main technique for treating wastewater of molasses alcohol of concentration method.Agriculture irrigation method be by molasses alcohol waste water after certain processing,
It is applied in farmland, is administering method the simplest, this method is promoted the use of in countries such as Australia, Brazil.Should
Also clearly, there is season sex chromosome mosaicism in the shortcomings that method, and be not suitable for the few or more dispersed region in farmland.Concentration method is
By molasses alcohol waste water by being concentrated by evaporation to finite concentration, obtained concentrate burns recovery heat energy or as fertilizer through boiler again
Material sale, and after evaporation condensate is then handled by aerobic sigestion, qualified discharge, current domestic molasses-spirit corporate boss will use
This method.The problem of this method is present is that the aerobic sigestion processing power consumption of evaporation condensate is high, and produces a large amount of excess sludges
Need to handle, had a strong impact on the economic profit of enterprise.
The content of the invention
It is an object of the present invention to overcome the above deficiencies, and provides a kind of new technology of alcohol, is by molasses
The evaporation condensate of alcohol waste water is back to alcoholic fermentation.
In one embodiment of the invention, the evaporation condensate be waste water is evaporated in evaporator it is dense
Contracting, by the water vapor condensation of evaporation, obtain evaporation condensate.
In one embodiment of the invention, the technique comprises the following steps：(1) it is cold with molasses alcohol water evaporation
Molasses are diluted to suitable concentration by lime set or mixing water containing molasses alcohol waste water evaporation condensate；(2) adjusted with sulfuric acid
The pH of molasses dilution；(3) nitrogen source, phosphorus source and magnesium salts are added；(4) inoculation yeast is fermented, and is distilled and is obtained after fermentation ends
Alcohol and molasses alcohol waste water；(5) waste water is evaporated concentration；(6) concentrate enters boiler and burned or for Fertilizer application；
Evaporation condensate is back to the dilution of next group molasses, Infinite Cyclic successively the step of according still further to (1)~(6).
In one embodiment of the invention, methods described specifically uses following processing step：
(1) will with the mixing water of molasses alcohol waste water evaporation condensate or molasses alcohol waste water evaporation condensate and other water
Molasses are diluted to suitable concentration；
(2) pH to 3.5~4.5 of molasses dilution is adjusted；
(3) at least one of nitrogen source, phosphorus source, magnesium salts are added；
(4) after sterilizing or the unsterilised yeast starter that is directly accessed starts fermentation, after fermentation ends, is obtained by still-process
Alcohol and molasses alcohol waste water；
(5) molasses alcohol waste water is evaporated concentration into evaporator, obtains concentrate and evaporation condensate；
(6) concentrate enters boiler and burned or for Fertilizer application；
(7) evaporation condensate is back to the dilution of next group molasses, Infinite Cyclic successively the step of according still further to (1)~(6).
In one embodiment of the invention, with sulphur acid for adjusting pH.
In one embodiment of the invention, described molasses include but is not limited to cane molasses, beet molasses.
In one embodiment of the invention, sterilized before inoculation yeast；The sterilization method be heat sterilization or
Add bactericide；
In one embodiment of the invention, the ratio of described evaporation condensate reuse is 10~100%.
In one embodiment of the invention, the mixing water in step (1) includes running water, cleaning surface water, rectifying
Distilled water or cleaning of evaporator water more than tower.
The present invention also provides application of the methods described in food, medicine, chemical field.
In one embodiment of the invention, the application includes preparing alcoholic fermented beverage.
In one embodiment of the invention, the application includes preparing alcoholic medical product.
In one embodiment of the invention, the application includes preparing alcoholic chemical products.
Beneficial effect：(1) present invention realizes the reuse of molasses alcohol waste water evaporation condensate, reduces aerobic sigestion work
The load of section, that is, reduce floor space, investment in fixed assets and the operating cost of aerobic sigestion workshop section；Reduce waste water
Discharge capacity, while saved substantial amounts of water resource；(2) acetic acid (200-500mg/ is contained in molasses alcohol waste water evaporation condensate
L), reuse can improve the raw material availability 1~2% of alcoholic fermentation.
Brief description of the drawings
Fig. 1 is process chart of the molasses alcohol waste water evaporation condensed water as alcoholic fermentation spice water.
Embodiment
In the following specific embodiments, differential distillation and air-distillation are carried out according to this area routine operation.
Embodiment 1
A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation of the present invention is walked using following technique
Suddenly：
It is 25% (w/v, sugar-containing concentration) that cane molasses are diluted into concentration with cane molasses alcohol waste water evaporation condensate,
Sulphur acid for adjusting pH is added to 4.0, adds ammonium sulfate (the 0.1% of molasses, according to undiluted molasses quality meter, following related content
It is identical with this), disodium hydrogen phosphate (the 0.25% of molasses), magnesium sulfate (the 0.04% of molasses), be warming up to 85 DEG C, maintain 1h.It is cold
But to 30 DEG C, 15% (v/v) yeast starter liquid of access starts fermentation, and (after inoculation, yeast number reaches 2 × 10 in zymotic fluid6CFU/
mL).After fermentation ends, alcohol and molasses alcohol waste water are obtained through differential distillation process.Acetic acid is averaged in the molasses alcohol waste water
Concentration is 316mg/L.Molasses alcohol waste water obtains evaporation condensate through multiple-effect evaporation, is back to next batch alcoholic fermentation, with
This continuous circulation 10 batches.The average alcohol degree 12.17% of 10 batches of alcoholic fermentations, with alcoholic fermentation wine of the running water as dilution
Precision is high by 1.8%.
Embodiment 2
A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation of the present invention is walked using following technique
Suddenly：
It is 25% that beet molasses is diluted to concentration by garden beet molasses alcohol waste water evaporation condensate, adds sulphur acid for adjusting pH
To 4.0, calcium phosphate (the 1% of molasses, identical with this according to undiluted molasses quality meter, following related content)), magnesium sulfate (sugar
Honey 0.04%), be warming up to 85 DEG C, maintain 1h.30 DEG C are cooled to, 15% (v/v) yeast starter liquid of access starts fermentation.Fermentation
After end, alcohol and molasses alcohol waste water are obtained through normal pressure still-process.Acetic acid mean concentration is in the molasses alcohol waste water
374mg/L.Molasses alcohol waste water obtains evaporation condensate through multiple-effect evaporation, is back to next batch alcoholic fermentation, continuous with this
Circulation 10 batches.The average alcohol degree 12.31% of 10 batches of alcoholic fermentations is high as the alcoholic fermentation alcoholic strength of dilution with running water
1.8%.
Embodiment 3
A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation of the present invention is walked using following technique
Suddenly：
Garden beet molasses alcohol waste water evaporation condensate presses 1 with underground water:1 volume ratio mixing, with mixing water by beet
It is 22% that molasses, which are diluted to concentration, addition sulphur acid for adjusting pH to 3.8, calcium phosphate (the 1% of molasses, according to undiluted molasses quality
Meter, following related content is identical with this)), magnesium sulfate (the 0.04% of molasses).Access 15% (v/v) yeast starter liquid and start hair
Ferment.After fermentation ends, alcohol and molasses alcohol waste water are obtained through differential distillation process.Acetic acid is average dense in the molasses alcohol waste water
Spend for 329mg/L.Molasses alcohol waste water obtains evaporation condensate through multiple-effect evaporation, next batch alcoholic fermentation is back to, with this
Continuous circulation 15 batches.The average alcohol degree 10.86% of 10 batches of alcoholic fermentations, with alcoholic fermentation alcohol of the running water as dilution
Spend high by 1.1%.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this skill
The people of art, without departing from the spirit and scope of the present invention, it can all do various change and modification, therefore the protection model of the present invention
Enclose being defined of being defined by claims.
Claims (10)
1. a kind of alcohol fermentation method, it is characterised in that using the evaporation condensate of molasses alcohol waste water as fermentation raw material reuse
In alcoholic fermentation；The evaporation condensate is obtained after the water vapor condensation that molasses alcohol waste water evaporates in evaporating concentration process
.
2. according to the method for claim 1, it is characterised in that comprise the following steps：(1) steamed with containing molasses alcohol waste water
The water dilution molasses for lime set of feeling cold；(2) pH to 3.5~4.5 of molasses dilution is adjusted；(3) add in nitrogen source, phosphorus source, magnesium salts
At least one；(4) inoculation yeast is fermented, distillation acquisition alcohol and molasses alcohol waste water after fermentation ends；(5) by molasses
Alcohol waste water is evaporated concentration；(6) evaporation condensate is back to the dilution of next group molasses, the step of according still further to (1)~(6)
Circulate successively.
3. according to the method for claim 2, it is characterised in that step (1) molasses alcohol waste water evaporation condensate or sugar
The mixing water dilution molasses of sweet alcohol waste water evaporation condensate and other water.
4. according to the method for claim 3, it is characterised in that the mixing water includes running water, cleaning surface water, rectifying
Distilled water or cleaning of evaporator water more than tower.
5. according to the method for claim 2, it is characterised in that step (2) sulphur acid for adjusting pH.
6. according to the method for claim 2, it is characterised in that step (4) is sterilized before inoculation yeast；The sterilizing
Mode is heat sterilization or addition bactericide.
7. according to the method for claim 2, it is characterised in that step (5), which is concentrated by evaporation, obtains concentrate and evaporative condenser
Liquid；Concentrate enters boiler and burned or for Fertilizer application.
8. according to any described method of claim 1~7, it is characterised in that molasses include cane molasses or beet molasses.
9. according to any described method of claim 1~7, it is characterised in that the ratio of evaporation condensate reuse is 10~
100%.
10. application of any methods described of claim 1~7 in food, medicine, chemical field prepare alcoholic product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367970.5A CN107858382A (en) | 2017-12-18 | 2017-12-18 | A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711367970.5A CN107858382A (en) | 2017-12-18 | 2017-12-18 | A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation |
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| Publication Number | Publication Date |
|---|---|
| CN107858382A true CN107858382A (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711367970.5A Pending CN107858382A (en) | 2017-12-18 | 2017-12-18 | A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387306A (en) * | 2018-04-23 | 2019-10-29 | 吴海洋 | A method of peculiar smell in the condensed water that removal agricultural byproducts processing generates |
| CN110819546A (en) * | 2019-11-06 | 2020-02-21 | 江南大学 | Method for producing yeast by recycling evaporation condensate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562796A (en) * | 2004-03-27 | 2005-01-12 | 广西大学 | Method for cleansing and reclaiming waste fluid of alcohol made from molasses |
| CN102537982A (en) * | 2011-12-30 | 2012-07-04 | 广西武鸣县皎龙酒精能源有限公司 | Method for treating molasses alcohol waste water |
| CN102703516A (en) * | 2012-06-08 | 2012-10-03 | 广西平果凯特生物化工有限公司 | Alcohol cycle production technology by taking cassava and molasses as raw materials |
-
2017
- 2017-12-18 CN CN201711367970.5A patent/CN107858382A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1562796A (en) * | 2004-03-27 | 2005-01-12 | 广西大学 | Method for cleansing and reclaiming waste fluid of alcohol made from molasses |
| CN102537982A (en) * | 2011-12-30 | 2012-07-04 | 广西武鸣县皎龙酒精能源有限公司 | Method for treating molasses alcohol waste water |
| CN102703516A (en) * | 2012-06-08 | 2012-10-03 | 广西平果凯特生物化工有限公司 | Alcohol cycle production technology by taking cassava and molasses as raw materials |
Non-Patent Citations (1)
| Title |
|---|
| G.EREMEKTAR等: "The pollution profile of alcohol distilleries treating beet sugar molasses", 《WATER SCIENCE AND TECHNOLOGY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387306A (en) * | 2018-04-23 | 2019-10-29 | 吴海洋 | A method of peculiar smell in the condensed water that removal agricultural byproducts processing generates |
| CN110819546A (en) * | 2019-11-06 | 2020-02-21 | 江南大学 | Method for producing yeast by recycling evaporation condensate |
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Application publication date: 20180330 |
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