CN1056526A - Process for treating waste liquor of distiller's grain of alcohol - Google Patents
Process for treating waste liquor of distiller's grain of alcohol Download PDFInfo
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- CN1056526A CN1056526A CN91103002A CN91103002A CN1056526A CN 1056526 A CN1056526 A CN 1056526A CN 91103002 A CN91103002 A CN 91103002A CN 91103002 A CN91103002 A CN 91103002A CN 1056526 A CN1056526 A CN 1056526A
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- alcohol
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Fodder In General (AREA)
Abstract
A kind of process for treating waste liquor of distiller's grain of alcohol, be that the vinasse waste liquid is lowered the temperature through heat exchanger, waste heat is used for spice, to dosing coagulant coagulating treatment wherein, centrifugation goes out waste water and dregs more again, and waste water is as the process water of preparation alcohol, realize the closed cycle of biomass to alcohol conversion process water, waste residue is used to cultivate edible mushrooms, or is used to produce fodder and bait, plant growth substance.The present invention has made full use of the useful matter in the vinasse waste liquid, energy-saving and water-saving, remarkable in economical benefits, and treatment process is simple, reduced investment, the wine or the alcohol quality of production are satisfied the criteria, and output can improve 0.5-3%, is suitable for all kinds of production wine or alcohol producer and adopts.
Description
The present invention is the treatment process of a kind of waste liquid and distillers ' grains from alcohol production comprehensive utilization and water closed cycle.
The chemical oxygen demand of waste liquid and distillers ' grains from alcohol production, biological oxygen demand (BOD) and suspension content are all above ten thousand mg/litre, be a kind of typical high concentrated organic wastewater, include rich nutrient contents and multiple amino acids, do not handle entering rivers, not only can make water body smelly, also pollute the environment.At present the method that waste liquid and distillers ' grains from alcohol production is handled is a lot, and as the brave disclosed fermentation method again in " present situation of alcohol waste lees water treatment and prospect " of " brewing science and technology " 1985 the 3rd phase Jia Zhi, biogas fermentation, mechanical filter, biochemical treatment, waste liquid burn but method etc.The not only power consumption of these methods is big, the floor space that has is big, scrubbing is not thorough, waste water after the processing can not reach emission standard, and their methods of not studying processing from the top and the whole process of Alcohol Production, can separate used process water from the end of production process, thereby reach the purpose of saving water and energy.
By patent of invention " purification of vinasse and utilization " (the open day 861119 of Nanjing University's application, publication number 85104057), it is the poor PH of first rectification, inoculate edible fungus then and carry out submerged fermentation, obtain thalline and supernatant liquor after the fermentation, thalline is used to cultivate edible mushrooms or extracts amino acid or be used as the medicine source.Supernatant liquor inoculation fodder yeast carries out the secondary submerged fermentation, and thalline is as fodder additives, and supernatant liquor is used to cultivate algae.Though this method has solved the vinasse pollution problem, made full use of the nutritive substance in the vinasse, complex technical process, investment and transport expense are with higher, and also unresolved end from production process is isolated the problem of process water.
The objective of the invention is to design a kind of useful matter that can all fully utilize in the vinasse waste liquid, the water after the processing can return the top of Alcohol Production, realizes the process for treating waste liquor of distiller's grain of biomass to alcohol conversion process water closed cycle.
The objective of the invention is to realize in the following manner, earlier the vinasse waste liquid is cooled to about 80 ℃ through heat exchanger, carry out coagulation pretreatment to dosing coagulant wherein then, centrifugation then, isolated waste water returns as the process water of producing alcohol, replace the tap water spice, isolated waste residue is used to cultivate edible mushrooms or produces feed, bait, plant growth substance.
The pre-treatment coagulating agent can be single coagulating agent or compound coagulant of planting, and dosage list kind coagulating agent is 0.1-5%, and compound coagulant is 0.01-2%.
Single kind coagulating agent is black liquid, lime powder or milk of lime, polyacrylamide.Compound coagulant is black liquid-polyacrylamide, black liquid-lime powder or milk of lime, milk of lime or lime powder-polyacrylamide, black liquid-NCF flocculation agent.
When producing by above-mentioned flow process closed cycle more than ten several, cause the output of alcohol can not improve 0.5% when above with comparing by former method production, then with coagulation pretreatment, waste water after the centrifugation carries out ultrafiltration or dosing coagulant carries out advanced treatment, dope after the ultrafiltration and the liquid after the advanced treatment are carried out solid-liquid separation, the clear liquid that isolated waste water goes out with ultrafiltration returns the process water as production usefulness, replace the tap water spice, isolated waste residue and pretreated isolated waste residue are used to cultivate edible mushrooms, or production feed, bait, plant growth substance.
The advanced treatment coagulating agent is black liquid, polyacrylamide, NCF flocculation agent.
Accompanying drawing is a process flow sheet of the present invention.Part among the figure above the dotted line is for producing the alcohol process, and following part is the process for treating waste liquor of distiller's grain flow process.
With reference to accompanying drawing, the vinasse waste liquid that the present invention will just give off, temperature is about 100 ℃, and by heat exchanger, the waste heat that comes out from heat exchanger is used for heating spice liquid or recycle-water, the energy consumption during with the minimizing boiling.
Again in the vinasse waste liquid (about about 80 ℃) that utilizes behind the waste heat, add single compound coagulant of planting coagulant or 0.01-2% of 0.1-5%, carry out coagulating treatment, be beneficial to Separation of Solid and Liquid, remove harmful substance, improve the rate of recovery of suspension in the waste liquid, make the waste water energy after its Separation of Solid and Liquid returned and make technology water spice. Coagulant of the present invention comprises black liquid, pulverized limestone or milk of lime, polyacrylamide, NCF flocculant. Black liquid is originally for being discharged the abandon of contaminated environment.
Waste liquid after the coagulating treatment is carried out Separation of Solid and Liquid with vertical top or bottom automatic discharge centrifuge or horizontal spiral automatic discharge centrifuge again. Isolated waste residue is used as edible mushrooms such as cultivating flat mushroom, Hericium erinaceus, mushroom, or produces feed, erbium material, plant growth substance. Isolated waste water returns the top that produces alcohol and replaces the running water spice, as the process water of preparation alcohol, has realized the closed cycle of biomass to alcohol conversion process water.
Satisfy the criteria by wine or alcohol quality that production method of the present invention is produced, produce wine or the alcohol produced with existing liquid state fermentation wine method processed and compare, can improve 0.5-3%.
When pressing this method through ten for several times closed cycles, when causing the output increased of wine or alcohol above less than 0.5%, then with coagulation pretreatment, waste water after the centrifugation carries out after ultrafiltration or dosing coagulant carry out advanced treating, the process water of using as producing alcohol is returned in again centrifugation, the waste water after the separation again, replaces the running water spice, twice isolated waste residue is used as cultivates edible mushroom, or produces feed, bait, plant growth substance. After this method processing, the alcohol output of producing still can improve 0.5-3%.
The present invention has not only solved the pollution of vinasse waste liquid to environment, and takes full advantage of utility wherein, adds and has utilized its waste heat, energy-saving and water-saving, remarkable in economical benefits. Treatment process of the present invention is simple, and floor space is little, and reduced investment is applicable to different scales, adopts the alcohol of different material or wine manufacturer to adopt.
Enumerate embodiments of the invention below:
Example 1, with the vinasse waste liquid that has just given off, temperature is at 95-100 ℃ of process tubulation or coil pipe heat exchanger, and the waste heat that comes out from heat exchanger is used to heat spice or reuse waste water, and its temperature rise can reach about 10 ℃, and the vinasse waste liquid is cooled to about 80 ℃.To wherein adding " black liquid " that weight is 0.5-3%, or the lime powder of 0.2-2% or milk of lime, or the polyacrylamide of " black liquid "-1-5ppm of 0.1-1%, the NCF flocculation agent of " black liquid "-50-50ppm of 0.1-1%, or the polyacrylamide of milk of lime-1-20ppm of 0.1-1% are after coagulation 0.1-0.5 hour, centrifugation, isolated solid slag water ratio 85-90% as cultivating edible mushrooms, produces feed, bait, plant growth substance.Isolated waste water replaces the tap water spice as process water.Adopt the wine or the alcohol quality of this waste water production to satisfy the criteria, the more former liquid fermentation method of output improves 0.5-3%.
Example 2, after ten number wheels are produced in use-case 1 method process water closed cycle, can not improve 0.5% when above as alcohol output, then carry out ultrafiltration or carry out advanced treatment to the polyacrylamide of black liquid that wherein adds 0.01-0.5% or 1-5ppm or the NCF flocculation agent of 50-500ppm by the isolated waste water of example 1 method.Dope after the ultrafiltration, the liquid after the advanced treatment is solid-liquid separation again, the clear liquid of isolated waste water and ultrafiltration returns spice, still can realize the closed cycle of biomass to alcohol conversion process water, then alcohol output can be brought up to 0.5-3% again, and the waste residue after the separation is the same with the isolated waste residue purposes of pre-treatment.
Claims (7)
1, a kind of process for treating waste liquor of distiller's grain of alcohol, it is characterized in that earlier the vinasse waste liquid being cooled to about 80 ℃ through heat exchanger, carry out coagulation pretreatment to dosing coagulant wherein then, centrifugation then, isolated waste water returns as the process water of producing alcohol, replace the tap water spice, isolated waste residue is used to cultivate edible mushrooms, or produces feed, bait, plant growth substance.
2, treatment process according to claim 1 is characterized in that the pre-treatment coagulating agent can be single coagulating agent or compound coagulant of planting, and dosage list kind coagulating agent is 0.1-5%, and compound coagulant is 0.01-2%.
3,, it is characterized in that single kind coagulating agent is black liquid, lime powder or milk of lime, polyacrylamide according to claim 1,2 described treatment process.
4,, it is characterized in that the compound coagulant that adds is black liquid-polyacrylamide, black liquid-lime powder or milk of lime, lime powder or milk of lime-polyacrylamide, black liquid-NCF flocculation agent according to claim 1,2 described treatment process.
5, treatment process according to claim 1 is characterized in that being used to heat spice liquid or reuse water from the waste heat that heat exchanger comes out.
6, a kind of waste liquid and distillers ' grains from alcohol production treatment process, it is characterized in that more than described flow process closed cycle production ten for several times by claim 1, cause the output of alcohol can not improve 0.5% when above with comparing by former method production, then with coagulation pretreatment, waste water after the centrifugation carries out ultrafiltration or dosing coagulant carries out advanced treatment, dope after the ultrafiltration and the liquid after the advanced treatment are carried out solid-liquid separation, the clear liquid that isolated waste water goes out with ultrafiltration returns as producing the process water that alcohol is used, replace the tap water spice, isolated waste residue is used to cultivate edible mushrooms after isolated waste residue and the pre-treatment, or produces feed, bait, plant growth substance.
7, treatment process according to claim 6 is characterized in that the advanced treatment coagulating agent is the black liquid of 0.1-0.5%, or the NCF flocculation agent of the polyacrylamide of 1-5ppm or 50-500ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91103002A CN1035681C (en) | 1991-05-07 | 1991-05-07 | Process for treating waste liquor of distiller's grain of alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91103002A CN1035681C (en) | 1991-05-07 | 1991-05-07 | Process for treating waste liquor of distiller's grain of alcohol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1056526A true CN1056526A (en) | 1991-11-27 |
| CN1035681C CN1035681C (en) | 1997-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91103002A Expired - Fee Related CN1035681C (en) | 1991-05-07 | 1991-05-07 | Process for treating waste liquor of distiller's grain of alcohol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035681C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050073C (en) * | 1995-07-28 | 2000-03-08 | 王天光 | Treating process for waste undecanted wine of alcohol |
| CN100420635C (en) * | 2005-12-28 | 2008-09-24 | 李安民 | Technology of fully recovering liquor in alcohol production |
| CN102260139A (en) * | 2010-05-24 | 2011-11-30 | 安徽丰原生物化学股份有限公司 | Separation method of alcoholic fermented liquor |
| CN103798505A (en) * | 2005-11-08 | 2014-05-21 | 诺维信北美公司 | Dewatering whole stillage |
| CN103988976A (en) * | 2014-04-30 | 2014-08-20 | 安徽农业大学 | Method for resource reutilization of scum |
| CN104263760A (en) * | 2014-09-11 | 2015-01-07 | 山东中德发酵技术有限公司 | Method of producing alcohol for fuels, high-protein feed and grease from kitchen waste |
-
1991
- 1991-05-07 CN CN91103002A patent/CN1035681C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050073C (en) * | 1995-07-28 | 2000-03-08 | 王天光 | Treating process for waste undecanted wine of alcohol |
| CN103798505A (en) * | 2005-11-08 | 2014-05-21 | 诺维信北美公司 | Dewatering whole stillage |
| CN100420635C (en) * | 2005-12-28 | 2008-09-24 | 李安民 | Technology of fully recovering liquor in alcohol production |
| CN102260139A (en) * | 2010-05-24 | 2011-11-30 | 安徽丰原生物化学股份有限公司 | Separation method of alcoholic fermented liquor |
| CN102260139B (en) * | 2010-05-24 | 2014-06-18 | 安徽中粮生化燃料酒精有限公司 | Separation method of alcoholic fermented liquor |
| CN103988976A (en) * | 2014-04-30 | 2014-08-20 | 安徽农业大学 | Method for resource reutilization of scum |
| CN103988976B (en) * | 2014-04-30 | 2016-04-06 | 安徽农业大学 | A kind of method of scum silica frost resource recycling |
| CN104263760A (en) * | 2014-09-11 | 2015-01-07 | 山东中德发酵技术有限公司 | Method of producing alcohol for fuels, high-protein feed and grease from kitchen waste |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1035681C (en) | 1997-08-20 |
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