CN1562796A - Method for cleansing and reclaiming waste fluid of alcohol made from molasses - Google Patents
Method for cleansing and reclaiming waste fluid of alcohol made from molasses Download PDFInfo
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- CN1562796A CN1562796A CN 200410012936 CN200410012936A CN1562796A CN 1562796 A CN1562796 A CN 1562796A CN 200410012936 CN200410012936 CN 200410012936 CN 200410012936 A CN200410012936 A CN 200410012936A CN 1562796 A CN1562796 A CN 1562796A
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Abstract
In the invention, water insoluble substance, water-soluble macromolecule substance, potassium ion, calcium ion are separated from waste liquid, the mixed acid remains liquid is oxide processed to degradate remains macromolecule organic substance to micromolecule organic substance. There are large quantity of nutrition substance can be used by yeast in the waste liquid, which can be reused to dilute molasses in stead of water in molasses alcohol fermentation production.
Description
Technical field
The present invention relates to a kind of environmental protection technical field of bionic high concentrated organic wastewater cleansing and recycling, especially a kind of cleansing and recycling method field of molasses alcohol waste liquid.
Background technology
Bionic production process can generate a certain amount of high concentrated organic wastewater, and the characteristics of this waste water are the organic content height, COD concentration height, SS concentration height.Organism in the waste liquid also contains the residual body of biomass, organic pigment, organic acid, biomass cells that biological process generates, raw material is brought into and the materials such as inorganic elements that add when producing except the nutritive substance that contains biological process remnants.The biotechnology high concentrated organic wastewater can produce very big harm to environment as not treated or handle not up to standard and discharge.For example, 300M need discharge in the molasses-spirit factory of a 20t/d
3The waste liquid of/d, former waste liquid COD concentration is up to 80000-150000mg/L, and the total emission volumn of its COD is equivalent to the quantity discharged of a small and medium cities sanitary sewage, so the biotechnology high concentrated organic wastewater must effectively be handled before discharging.
In recent years, molasses alcohol waste liquid improvement Study on Technology and application have proposed a lot of methods.The improvement method of energy practical application at present is broadly divided into two big classes: a class is to cut down pollutent by means such as biochemistry, chemistry, physics, until the concentration qualified discharge of pollutent.The process flow of this class methods reduction pollutent is long, and operation easier is big, and waste water also is difficult to qualified discharge; Be back to after some enterprises partly cut down waste liquid COD in the zymamsis production, but reuse replaces dilution clear water weight to be generally below 25%.Another kind of is that waste liquid is concentrated the method for burning or concentrating the system product.The technology that this class methods resource reclaims is fairly simple extensive, and the product of recovery is organic mixture, generally can only make compost, is worth lower and energy consumption is big.This two classes treatment technology is all big because of investment, working cost height (benefit that can produce is lower than running cost), and be difficult to apply.The improvement of the improvement of the high concentrated organic waste liquid that the biotechnology production process is produced, particularly molasses alcohol waste liquid has become the hard nut to crack that home and abroad environment is handled.Press for efficient, resource utilization and the low improvement technology of working cost.
Applicant of the present invention is through studying for many years and putting into practice, and thinks the pollution problem that will thoroughly solve molasses alcohol waste liquid, not only will consider the effect of the technique means that adopted, also will consider the economic and social benefit of whole governance process.If the treating waste liquid process does not have economic benefit or economic benefit is very few, then implement to administer hard to carry on.It is a kind of comparatively ideal scheme of administering waste liquid that waste liquid is back in the molasses-spirit production again.But the applicant finds, the water-insoluble that exists in the waste liquid, water-soluble macromolecule thing, potassium, calcium plasma and mixing acid etc., and they had both hindered further processing, purification and the reuse of waste liquid, were again simultaneously the main valuable materials in the waste liquid.Therefore the applicant thinks: as long as by methods such as some chemistry, physics or materializations material (as COD, K, the Ca etc.) concentration of above-mentioned obstruction effluent purifying reuse is controlled within the specific limits, again surplus liquid is further handled, just might be accomplished the molasses alcohol waste liquid vast scale even reach 100% ground reuse.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of the realization molasses alcohol waste liquid vast scale is back to the method that molasses-spirit is produced.
The present invention solves the problems of the technologies described above with following technical scheme:
To separate the surplus liquid of water-insoluble, water-soluble macromolecule thing, potassium, calcium plasma and mixing acid in the waste liquid, after the remaining larger molecular organics of oxide treatment degraded is small organic molecule, be back in the molasses-spirit production.
The method of surplus liquid oxidation being handled the degraded larger molecular organics can adopt chemical oxidization method or physico-chemical processes.
Chemical oxidization method can be used ozone oxidation; Physico-chemical processes can be used the electric microfield oxidation.
Use the method for the invention waste liquid of molasses alcohol, water in the waste liquid can not only be recycled in molasses-spirit is produced, environment is thoroughly administered, and helps to reclaim other valuable materials, reduce treatment cost greatly, the promoting the use of of this technical scheme that is highly advantageous to.
Embodiment
Method of the present invention is to have separated the surplus liquid of the molasses alcohol waste liquid behind water-insoluble, water-soluble macromolecule thing, potassium, calcium plasma and the mixing acid such as containing protein, through the remaining larger molecular organics of oxide treatment degraded is small organic molecule, be purified waste liquid, contain the utilizable nutritive substance of many yeast in this purifying waste, the material that yeast and biochemical bacteria are not readily assimilated significantly reduces, but this purifying waste vast scale is back in the molasses-spirit production.Can use conventional solid-liquid separating method and from waste liquid stoste, separate water-insolubles such as containing protein; Methods such as separating water-soluble macromolecular complex, potassium, calcium plasma and mixing acid can separate with conventional membrane sepn, resin absorption, electrodialysis, liquid film separation; The inventor is with ultra-filtration membrane separation system separating water-soluble macromolecular complex, just separated potassium, calcium plasma and mixing acid SEPARATE APPLICATION Chinese patent (application number is respectively 02128101.7 and 02128100.9) with chemical method.
To implement the degraded larger molecular organics to having separated proteinaceous water-insoluble, water-soluble macromolecule thing (particularly pigment material), potassium, calcium plasma and mixing acid surplus liquid afterwards, can adopt methods such as chemical oxidization method, electric microfield physico-chemical processes, remaining larger molecular organics is further changed into can be for yeast production material than small molecules that alcohol utilized.The processing condition that the electric microfield method is handled are normal temperature to 85 ℃, pH=4-10, suitably blasted air, electric microfield oxide treatment 1-16 hour; The processing condition of ozone Oxidation Treatment are normal temperature to 70 ℃, pH=2-l0.
The molasses alcohol waste liquid of recycling after above-mentioned processing, its approach mainly are the clear water that the purifying waste that will contain nutritive substance such as a large amount of amino acid is used for replacing diluting molasses, realize that waste liquid does not discharge.Need not to be back to alternative clear water dilution molasses as surplus liquid, then can be through conventional biochemical treatment qualified discharge.
Embodiment one:
Molasses alcohol waste liquid (COD concentration 150000mg/L) separates to such an extent that solid carbon dioxide insolubles weight is the 6.8g/L waste liquid through separating centrifuge, surplus liquid is through ultra-filtration and separation water-soluble macromolecule thing, separate potassium, calcium plasma and mixing acid through bipolar membrane electrodialysis, obtaining surplus liquid COD concentration is 100000mg/L, and every liter of this surplus liquid is at normal temperature, pH=9, oxygen flow 0.14m
3Under the condition of/h, after 30 minutes, be back to replacement clear water dilution molasses in the Alcohol Production through ozone oxidation, it is 75% that purifying waste replaces dilution clear water amount.The technical process of reuse is:
1. 3. 2. molasses (70-90 ° of Bx) → settling tank (adding purifying waste, nutritive salt) → about 55 ° of Bx liquid glucose → confessions make raw material;
2. (adding kind of a mother) → distiller's yeast → confession 3. for 55 ° of Bx liquid glucose → #1 thinning tanks (adding purifying waste, water) → 20-24 ° Bx diluted molasses → distiller's yeast jar;
3. 55 ° of Bx liquid glucose → #2 thinning tanks (adding purifying waste, water) → 40-48 ° Bx diluted molasses → fermentor tank (adding distiller's yeast) → ripe wine with dregs → distillation → alcohol, useless mash.
Embodiment two:
Molasses alcohol waste liquid (COD concentration 95000mg/L) separates to such an extent that solid carbon dioxide insolubles weight is the 2.6g/L waste liquid through separating centrifuge, surplus liquid is through ultra-filtration and separation water-soluble macromolecule thing, (see number of patent application: 02128100.9) through chemical method with tartrate Reaction Separation tartarus, being purified waste liquid COD concentration is 65000mg/L, this surplus liquid is at 80 ℃, pH=4.5, suitably blast under the conditions of air, after 2 hours, be back to replacement clear water dilution molasses in the Alcohol Production through ferromanganese carbon electric microfield oxide treatment.The technical process of reuse is with embodiment one, and it is 95% that purifying waste replaces dilution clear water amount.
Embodiment four:
Molasses alcohol waste liquid (COD concentration 130000mg/L) separates to such an extent that solid carbon dioxide insolubles weight is the 4.5g/L waste liquid through separating centrifuge, surplus liquid is through ultra-filtration and separation water-soluble macromolecule thing, through chemical method tartrate Reaction Separation tartarus, obtaining surplus liquid COD concentration is 85000mg/L, and every liter of this surplus liquid is at 70 ℃, pH=3.5, oxygen flow 0.08m
3Under the condition of/h, after 60 minutes, be back to replacement clear water dilution molasses in the Alcohol Production through ozone oxidation.The technical process of reuse is with embodiment one, and it is 85% that purifying waste replaces dilution clear water amount.
Embodiment five:
Molasses alcohol waste liquid (COD concentration 120000mg/L) separates to such an extent that solid carbon dioxide insolubles weight is the 3.4g/L waste liquid through separating centrifuge, surplus liquid is through ultra-filtration and separation water-soluble macromolecule thing, separate potassium, calcium plasma and mixing acid through bipolar membrane electrodialysis, obtaining surplus liquid COD concentration is 80000mg/L, this surplus liquid is at normal temperature, pH=9, suitably blast under the conditions of air, after 8 hours, be back to replacement clear water dilution molasses in the Alcohol Production through ferromanganese carbon electric microfield oxide treatment.The technical process of reuse is with embodiment one, and it is 80% that purifying waste replaces dilution clear water amount.
Embodiment six:
Molasses alcohol waste liquid (COD concentration 80000mg/L) separates to such an extent that solid carbon dioxide insolubles weight is the 2.8g/L waste liquid through the film system, surplus liquid is through ultra-filtration and separation water-soluble macromolecule thing, separate potassium, calcium plasma and mixing acid through bipolar membrane electrodialysis, obtaining surplus liquid COD concentration is 60000mg/L, and every liter of this surplus liquid is at 50 ℃, pH=7, oxygen flow 0.02m
3Under the condition of/h, after 20 minutes, be back to replacement clear water dilution molasses in the Alcohol Production through ozone oxidation.The technical process of reuse is with embodiment one, and it is 95% that purifying waste replaces dilution clear water amount.
Claims (5)
1. the method for a molasses alcohol waste liquid cleansing and recycling, it is characterized in that: will separate the surplus liquid of the molasses alcohol waste liquid of water-insoluble, water-soluble macromolecule thing, potassium, calcium plasma and mixing acid, and after the remaining larger molecular organics of oxide treatment degraded is small organic molecule, be back in the molasses-spirit production.
2. the method for molasses alcohol waste liquid cleansing and recycling as claimed in claim 1 is characterized in that the degraded larger molecular organics is handled in surplus liquid oxidation adopts chemical oxidization method.
3. the method for molasses alcohol waste liquid cleansing and recycling as claimed in claim 2 is characterized in that processing condition with ozone oxidation degraded larger molecular organics are normal temperature to 70 ℃, pH=2-10.
4, the method for molasses alcohol waste liquid cleansing and recycling as claimed in claim 1 is characterized in that the degraded larger molecular organics is handled in surplus liquid oxidation adopts the electric microfield physico-chemical process.
5, the method for molasses alcohol waste liquid cleansing and recycling as claimed in claim 4 is characterized in that processing condition with electric microfield physico-chemical process degraded larger molecular organics are normal temperature to 85 ℃, pH=4-10, suitably blast air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012936 CN1238273C (en) | 2004-03-27 | 2004-03-27 | Method for cleansing and reclaiming waste fluid of alcohol made from molasses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410012936 CN1238273C (en) | 2004-03-27 | 2004-03-27 | Method for cleansing and reclaiming waste fluid of alcohol made from molasses |
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| Publication Number | Publication Date |
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| CN1562796A true CN1562796A (en) | 2005-01-12 |
| CN1238273C CN1238273C (en) | 2006-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410012936 Expired - Fee Related CN1238273C (en) | 2004-03-27 | 2004-03-27 | Method for cleansing and reclaiming waste fluid of alcohol made from molasses |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858382A (en) * | 2017-12-18 | 2018-03-30 | 江南大学 | A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation |
| CN109081512A (en) * | 2018-08-31 | 2018-12-25 | 广州中康食品有限公司 | A kind of high cod values syrup recycling treatment process |
| CN109851085A (en) * | 2018-12-27 | 2019-06-07 | 天津膜天膜科技股份有限公司 | A kind of technique for treating wastewater of molasses alcohol for brewed spirit industry |
| CN112079419A (en) * | 2020-08-05 | 2020-12-15 | 广州中和环境科技有限公司 | Method for recovering molasses alcohol wastewater |
-
2004
- 2004-03-27 CN CN 200410012936 patent/CN1238273C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107858382A (en) * | 2017-12-18 | 2018-03-30 | 江南大学 | A kind of technique that molasses alcohol waste water evaporation condensate is back to alcoholic fermentation |
| CN109081512A (en) * | 2018-08-31 | 2018-12-25 | 广州中康食品有限公司 | A kind of high cod values syrup recycling treatment process |
| CN109081512B (en) * | 2018-08-31 | 2021-06-01 | 广州中康食品有限公司 | high-COD value syrup recycling treatment process |
| CN109851085A (en) * | 2018-12-27 | 2019-06-07 | 天津膜天膜科技股份有限公司 | A kind of technique for treating wastewater of molasses alcohol for brewed spirit industry |
| CN112079419A (en) * | 2020-08-05 | 2020-12-15 | 广州中和环境科技有限公司 | Method for recovering molasses alcohol wastewater |
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| Publication number | Publication date |
|---|---|
| CN1238273C (en) | 2006-01-25 |
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Granted publication date: 20060125 Termination date: 20110327 |