CN107788203B - High-value recycling method for molasses alcohol waste liquid - Google Patents
High-value recycling method for molasses alcohol waste liquid Download PDFInfo
- Publication number
- CN107788203B CN107788203B CN201710877313.9A CN201710877313A CN107788203B CN 107788203 B CN107788203 B CN 107788203B CN 201710877313 A CN201710877313 A CN 201710877313A CN 107788203 B CN107788203 B CN 107788203B
- Authority
- CN
- China
- Prior art keywords
- liquid
- feed
- waste liquid
- waste
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
- A23K10/12—Animal feeding-stuffs obtained by microbiological or biochemical processes by fermentation of natural products, e.g. of vegetable material, animal waste material or biomass
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/33—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from molasses
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Biotechnology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Animal Husbandry (AREA)
- Molecular Biology (AREA)
- Physiology (AREA)
- Botany (AREA)
- Mycology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a method for high-valued recycling of molasses alcohol waste liquid. The invention has the advantages of reducing waste water discharge, reducing energy consumption, having no secondary pollution, utilizing waste water to produce feed, adopting the microbial agent, the waste rapeseed meal of beet sugar factory and the treated molasses fermentation waste liquid to prepare the feed, strengthening the beneficial flora in the anti-animal digestion system, improving the digestibility, maintaining the normal metabolism and enhancing the disease resistance. The prepared feed is easy to store and put in, and the utilization rate of the feed is greatly improved.
Description
Technical Field
The invention relates to the field of recycling of molasses alcohol waste liquid, in particular to a high-valued recycling method of molasses alcohol waste liquid.
Background
The beet molasses alcohol waste liquid is waste liquid discharged from the bottom of a distillation tower after alcohol is distilled out, 13-15t of alcohol waste liquid is discharged every 1t of alcohol produced in a beet sugar factory, the beet molasses alcohol waste liquid has serious environmental pollution, contains a large amount of suspended matters and organic matters, has the pH value of 4.2-4.6, the BOD of 5.7-6.7 multiplied by 104mg/L, the COD of 10-13 multiplied by 104mg/L, the suspended matters (SS) of 2.5-5 multiplied by 103mg/L, the color value of 12-14 ten thousand IU and 10-20% of solid solution (wherein 15-20% of crude protein, 25-30% of mineral matters and 45-52% of nitrogen-free extracts such as residual sugar, colloid, vitamins, amino acids). Molasses fermentation waste liquid (alcohol-containing fermentation waste water and molasses fermentation waste water) is the most typical high-concentration organic waste liquid and is listed as one of five pollution sources in China, and the waste liquid is discharged into rivers to cause oxygen deficiency and odor of water bodies and seriously pollute the environment, so that the treatment of the molasses fermentation waste liquid is always a research hotspot and a difficulty in the field of international environmental protection. From the analysis of the components of the waste liquid, the beet molasses fermentation waste liquid is a resource which contains a large amount of nutrient components and does not contain toxic and harmful substances such as heavy metals, pesticides and the like.
The molasses fermentation only utilizes carbohydrates in the molasses, and the molasses wastewater with high COD contains abundant betaine, saccharides, vitamins, organic acids, amino acids, major and trace elements and a large amount of pigments, and the current common method is to concentrate and discharge alcohol waste liquor or directly burn the alcohol waste liquor. Therefore, if the waste is directly treated without utilization, not only a large waste of resources is caused, but also the cost for treating the molasses fermentation waste liquid is increased due to a high load, so that it is necessary to design a waste utilization method for solving the problems.
Disclosure of Invention
The invention aims to solve the problems and designs a method for recycling molasses alcohol waste liquid in a high-value mode.
The technical scheme of the invention is that the molasses alcohol waste liquid high-value recycling method comprises the following steps:
step 1, adding a flocculating agent and a filter aid into the beet alcohol waste liquor, standing for 2-24 hours at the temperature of 30-100 ℃, adsorbing impurities, removing suspended matters, and standing to obtain supernatant;
step 2, enabling the supernatant to pass through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.2-0.3 Mpa and the operating temperature to be 40-70 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate;
Step 3, evaporating and concentrating the filtrate until the solid content is 30% -70%, and obtaining filtrate;
step 4, separating the filtrate in a Sequential Simulated Moving Bed (SSMB) separation device to obtain three fractions of an extracting solution containing betaine, a residual sugar solution and a salt solution (inorganic sylvite);
step 5, performing activated carbon decoloration on the extract of the betaine at the temperature of 60-75 ℃ for 30-45min, concentrating and crystallizing the decolored feed liquid, and drying by a fluidized bed to obtain a finished product of the betaine;
6, decoloring the salt solution component obtained in the step 4 by using activated carbon, controlling the temperature at 60-75 ℃ and the decoloring time at 30-45min, concentrating and crystallizing the decolored feed liquid, and drying by using a fluidized bed to obtain a finished product of potassium salt;
step 7, mixing 35-55% of the residual sugar-containing liquid, 20-40% of the waste beet strips and 20-40% of the bean pulp according to the mass ratio, wherein the residual sugar-containing liquid, the waste beet strips and the bean pulp are obtained in the step 4; the 20-40% of the soybean meal is cottonseed meal or a mixture of the cottonseed meal and the peanut meal. Mixing the above materials, stacking naturally, turning once a day, and fermenting for 4-10 days to obtain adjuvant A;
step 8, uniformly adding a mixed bacterial liquid (auxiliary material B) of saccharomycetes, lactic acid bacteria and saccharomycetes into the auxiliary material A according to the proportion of 0.2-3% by weight to obtain a mixed feed;
And step 9, uniformly stirring the mixed feed, covering a plastic film, sealing, compacting, performing anaerobic fermentation for 3-6 days, crushing, briquetting and packaging to obtain the feed.
The filter aid in the step 1 consists of 40-90% by volume of calcium oxide and 10-60% by volume of phosphoric acid; the addition amount of the filter aid is 70-150ppm of the total mass of the waste liquid; the flocculant is polyacrylamide, and the addition amount of the filter aid is 5-20ppm of the total mass of the waste liquid.
The SSMB separation conditions and parameters: the eluent is pure water, the operation temperature is 40-60 ℃, the simulated moving bed chromatographic column is 6 columns, the columns are switched in different areas through a double-channel automatic valve, and the stationary phase adsorbent filled in the columns is strong acid calcium type or sodium type ion exchange resin.
The cross-linking degree of the stationary phase adsorbent is 2% -8%, and the mesh number is 100-400 meshes.
The yeast is any one or a mixture of at least two of candida utilis, zygosaccharomyces rouxii and pseudomomyces margarii; the lactobacillus is active lactobacillus brevis and/or lactobacillus buchneri, and the saccharifying bacteria is aspergillus oryzae and/or aspergillus niger.
The mixed bacteria liquid in the step 8 is respectively cultured into bacteria liquid with the concentration of 1 x 108/ml by yeast, lactobacillus and saccharomycetes according to the volume ratio of (1.5-2.5): (1.5-2.5): (0.5-1.5), preferably 2:2:1, and uniformly mixing and stirring to obtain the auxiliary material B.
The invention relates to a method for high-valued recycling molasses alcohol waste liquid, which is prepared by the technical scheme of the invention. The prepared feed is easy to store and put in, and the utilization rate of the feed is greatly improved.
Drawings
FIG. 1 is a flow chart of a method for high-value recycling of molasses alcohol waste liquid according to the present invention;
Detailed Description
The invention is described in detail below with reference to the accompanying drawings, and as shown in fig. 1, a method for high-value recycling of molasses alcohol waste liquid comprises the following steps:
step 1, adding a flocculating agent and a filter aid into the beet alcohol waste liquor, standing for 2-24 hours at the temperature of 30-100 ℃, adsorbing impurities, removing suspended matters, and standing to obtain supernatant;
Step 2, enabling the supernatant to pass through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.2-0.3 Mpa and the operating temperature to be 40-70 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate;
step 3, evaporating and concentrating the filtrate until the solid content is 30% -70%, and obtaining filtrate;
step 4, separating the filtrate in a Sequential Simulated Moving Bed (SSMB) separation device to obtain three fractions of an extracting solution containing betaine, a residual sugar solution and a salt solution (inorganic sylvite);
step 5, performing activated carbon decoloration on the extract of the betaine at the temperature of 60-75 ℃ for 30-45min, concentrating and crystallizing the decolored feed liquid, and drying by a fluidized bed to obtain a finished product of the betaine;
6, decoloring the salt solution component obtained in the step 4 by using activated carbon, controlling the temperature at 60-75 ℃ and the decoloring time at 30-45min, concentrating and crystallizing the decolored feed liquid, and drying by using a fluidized bed to obtain a finished product of potassium salt;
step 7, mixing 35-55% of the residual sugar-containing liquid, 20-40% of the waste beet strips and 20-40% of the bean pulp according to the mass ratio, wherein the residual sugar-containing liquid, the waste beet strips and the bean pulp are obtained in the step 4; the 20-40% of the soybean meal is cottonseed meal or a mixture of the cottonseed meal and the peanut meal. Mixing the above materials, stacking naturally, turning once a day, and fermenting for 4-10 days to obtain adjuvant A;
Step 8, uniformly adding a mixed bacterial liquid (auxiliary material B) of saccharomycetes, lactic acid bacteria and saccharomycetes into the auxiliary material A according to the proportion of 0.2-3% by weight to obtain a mixed feed;
and step 9, uniformly stirring the mixed feed, covering a plastic film, sealing, compacting, performing anaerobic fermentation for 3-6 days, crushing, briquetting and packaging to obtain the feed.
The filter aid in the step 1 consists of 40-90% by volume of calcium oxide and 10-60% by volume of phosphoric acid; the addition amount of the filter aid is 70-150ppm of the total mass of the waste liquid; the flocculant is polyacrylamide, and the addition amount of the filter aid is 5-20ppm of the total mass of the waste liquid; the SSMB separation conditions and parameters: the eluent is pure water, the operation temperature is 40-60 ℃, the simulated moving bed chromatographic column is 6 columns, the columns are switched in different areas through a double-channel automatic valve, and the stationary phase adsorbent filled in the columns is strong acid calcium type or sodium type ion exchange resin; the crosslinking degree of the stationary phase adsorbent is 2% -8%, and the mesh number is 100-400 meshes; the yeast is any one or a mixture of at least two of candida utilis, zygosaccharomyces rouxii and pseudomomyces margarii; the lactobacillus is active lactobacillus brevis and/or lactobacillus buchneri, and the saccharifying bacteria is aspergillus oryzae and/or aspergillus niger; the mixed bacteria liquid in the step 8 is respectively cultured into bacteria liquid with the concentration of 1 x 108/ml by yeast, lactobacillus and saccharomycetes according to the volume ratio of (1.5-2.5): (1.5-2.5): (0.5-1.5), preferably 2:2:1, and uniformly mixing and stirring to obtain the auxiliary material B.
In the present embodiment, the above problem is addressed, wherein the SSMB separation process: and (3) separating the filtrate in the step (3) by a sequential simulated moving bed chromatographic device, wherein each chromatographic column needs to be subjected to three steps of adsorption, desorption and feed desorption, and the device needs to be subjected to 18 steps in one operating period. The first stage is an adsorption stage: 6 chromatographic columns are connected in series, materials enter the No. 2, 3, 4, 5 and 6 columns in sequence from the No. 1 column, and the materials cannot enter or exit the system but are circularly adsorbed; the second step is a desorption stage, wherein a desorbent is fed into the upper end of the No. 1 column, and residual sugar components are discharged from the lower end of the No. 5 column; the third step is a feeding desorption stage, wherein a desorbent is fed into the upper end of the No. 1 column, a betaine component is discharged from the lower end of the No. 1 column, a material is fed into the upper end of the No. 4 column, and an inorganic salt component is discharged from the lower end of the No. 5 column; then the column is switched to column No. 2, and all the feed and discharge ports are also moved down one column, circulating in sequence. Wherein the SSMB separation conditions and parameters: the eluent is pure water, the operation temperature is 40-60 ℃, the simulated moving bed chromatographic column is 6 columns, the columns are switched in different areas through a double-channel automatic valve, and the stationary phase adsorbent filled in the columns is strong acid calcium type or sodium type ion exchange resin. Furthermore, the cross-linking degree of the stationary phase adsorbent is 2% -8%, the mesh number is 100-400 meshes, the invention aims to design a method capable of simply and effectively recovering effective components from molasses alcohol waste liquid so as to realize high-value utilization of the molasses alcohol waste liquid, potassium salt and betaine can be recovered by using the method, meanwhile, the waste water discharge is reduced, the energy consumption is reduced, and the waste water is utilized to produce feed, so that multiple purposes are achieved. The method can realize continuous production, high product purity and yield, stable quality, no secondary pollution in the process and zero discharge of wastewater basically, wherein the mixed bacteria liquid in the step 8 is respectively cultured into bacteria liquid with the concentration of 1 × 108/ml by saccharomycetes, lactobacillus and saccharomycetes according to the volume ratio of (1.5-2.5): (1.5-2.5): (0.5-1.5), preferably 2:2:1, and uniformly mixing and stirring to obtain the auxiliary material B. Note that the methods for the expanded culture of the strains and the preparation of the microbial inoculum in the above steps are not exclusive, and those skilled in the art can select a suitable culture medium and an expanded culture method according to common knowledge, so that the viable count reaches 108/g, and prepare the microbial inoculum according to a conventional method for preparing the microbial inoculum.
Example 2
(1) Adding flocculant polyacrylamide and filter aid into the beet alcohol waste liquid, standing the beet alcohol waste liquid for 2 hours at the temperature of 30 ℃ to flocculate and settle suspended matters, and taking supernatant fluid; the addition amount of the flocculating agent is as follows: adding 5g of flocculating agent into each ton of beet alcohol waste liquor; the filter aid consists of 40 volume percent of calcium oxide and 60 volume percent of phosphoric acid; the addition amount of the filter aid is as follows: adding 70g of filter aid into each ton of beet alcohol waste liquor;
enabling the supernatant obtained in the step (1) to pass through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.2Mpa and the operating temperature to be 40 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate; concentrating the filtrate by a four-effect evaporator to a solid content of 40%; injecting the concentrated feed liquid into a sequential simulated moving bed chromatogram, keeping the temperature of the feed liquid at 60 ℃, and collecting the extract after chromatographic separation;
(2) sequential simulated moving bed separation: the simulated moving bed device is formed by connecting 6 stainless steels of 25cm x 0.46cm with 200-mesh 400-mesh sodium type strong ion exchange resin with the crosslinking degree of 2% in series, and the feed liquid is injected into the simulated moving bed device from a feed inlet at the flow rate of 0.1ml/min and the operation pressure of 0.2 MPa. Obtaining three fractions containing betaine, potassium salt solution and residual sugar solution;
(3) Decoloring the components of the potassium salt solution obtained in the step (2) by using activated carbon, controlling the temperature at 60 ℃, decoloring for 30min, concentrating and crystallizing the decolored feed liquid, reducing the content of potassium salt to 18% (w/w), and centrifuging to obtain a wet product when the temperature is reduced to 20 ℃; the active carbon is powdery active carbon, the addition amount of the active carbon is 1 percent of the extraction mass, and the wet product is dried by a fluidized bed to obtain a potassium salt finished product;
(4) mixing the residual sugar solution, the waste beet silks and the soybean meal obtained in the step (2) according to the mass ratio of 35%, 32.5% and 32.5%, turning over once every day, and fermenting for 4 days to obtain an auxiliary material A;
(5) respectively culturing yeast, lactobacillus and saccharomycetes into bacterial liquids with the concentration of 1 × 108/ml according to the volume ratio of 1.5: 1.5: 0.5, preparing mixed bacteria liquid;
(6) and (3) uniformly adding the cultured mixed bacterial liquid in the step (5) into the auxiliary material A according to the proportion of 0.2 percent by weight, uniformly stirring, compacting, covering a film, carrying out anaerobic fermentation for 3 days, crushing, briquetting and packaging to obtain the feed.
Example 3
(1) Adding flocculant polyacrylamide and filter aid into the beet alcohol waste liquid, standing the beet alcohol waste liquid for 18 hours at the temperature of 80 ℃ to flocculate and settle suspended matters, and taking supernatant; the addition amount of the flocculating agent is as follows: adding 10g of flocculating agent into each ton of beet alcohol waste liquor; the filter aid consists of 20 volume percent of calcium oxide and 80 volume percent of phosphoric acid; the addition amount of the filter aid is as follows: adding 90g of filter aid into each ton of beet alcohol waste liquor;
Enabling the supernatant obtained in the step (1) to pass through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.3Mpa and the operating temperature to be 70 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate; concentrating the filtrate by a four-effect evaporator to solid content of 70%; injecting the concentrated feed liquid into a sequential simulated moving bed chromatogram, keeping the temperature of the feed liquid at 60 ℃, and collecting the extract after chromatographic separation;
(2) sequential simulated moving bed separation: the simulated moving bed device is formed by connecting 6 stainless steels of 25cm x 0.46cm with 200-mesh 400-mesh calcium type strong ion exchange resin with the crosslinking degree of 8% in series, and the feed liquid is injected into the simulated moving bed device from a feed inlet at the flow rate of 0.1ml/min and the operation pressure of 0.2 MPa. Obtaining three fractions containing betaine, potassium salt solution and residual sugar solution;
(3) decoloring the components of the potassium salt solution obtained in the step (2) by using activated carbon, controlling the temperature at 60 ℃, decoloring for 40min, concentrating and crystallizing the decolored feed liquid, reducing the content of potassium salt to 17.5% (w/w), and centrifuging to obtain a wet product when the temperature is reduced to 20 ℃; the active carbon is powdery active carbon, the addition amount of the active carbon is 5 percent of the extraction mass, and the wet product is dried by a fluidized bed to obtain a potassium salt finished product;
(4) Mixing the residual sugar liquid obtained in the step (2), the waste beet silks and the bean pulp according to the mass ratio of 55%, 25% and 20%, turning over once a day, and fermenting for 8 days to obtain an auxiliary material A;
(5) respectively culturing yeast, lactobacillus and saccharogenic bacteria into bacterial liquid with the concentration of 1 × 108/ml according to the volume ratio of 2: 2: 1, preparing mixed bacteria liquid;
(6) and (3) uniformly adding the cultured mixed bacterial liquid in the step (5) into the auxiliary material A according to the proportion of 2 percent by weight, uniformly stirring, compacting, covering a film, carrying out anaerobic fermentation for 3 days, crushing, briquetting and packaging to obtain the feed.
Example 4
(1) Adding flocculant polyacrylamide and filter aid into the beet alcohol waste liquid, standing the beet alcohol waste liquid for 24 hours at the temperature of 100 ℃ to flocculate and settle suspended matters, and taking supernatant; the addition amount of the flocculating agent is as follows: adding 20g of flocculating agent into each ton of beet alcohol waste liquor; the filter aid consists of 10 volume percent of calcium oxide and 90 volume percent of phosphoric acid; the addition amount of the filter aid is as follows: 150g of filter aid is added into each ton of beet alcohol waste liquor;
enabling the supernatant obtained in the step (1) to pass through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.3MPa and the operating temperature to be 40 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate; concentrating the filtrate by a four-effect evaporator to a solid content of 40%; injecting the concentrated feed liquid into a sequential simulated moving bed chromatogram, keeping the temperature of the feed liquid at 60 ℃, and collecting the extract after chromatographic separation;
(2) Sequential simulated moving bed separation: the simulated moving bed device is formed by connecting 6 stainless steels of 25cm x 0.46cm with 200-mesh 400-mesh sodium type strong ion exchange resin with the crosslinking degree of 8% in series, and the feed liquid is injected into the simulated moving bed device from a feed inlet at the flow rate of 0.1ml/min and the operation pressure of 0.2 MPa. Obtaining three fractions containing betaine, potassium salt solution and residual sugar solution;
(3) decoloring the components of the potassium salt solution obtained in the step (2) by using activated carbon, controlling the temperature at 75 ℃, decoloring for 40min, concentrating and crystallizing the decolored feed liquid, reducing the content of potassium salt to 21% (w/w), and centrifuging to obtain a wet product when the temperature is reduced to 20 ℃; the active carbon is powdery active carbon, the addition amount of the active carbon is 8 percent of the extraction mass, and the wet product is dried by a fluidized bed to obtain a potassium salt finished product;
(4) mixing the residual sugar liquid obtained in the step (2), the waste beet silks, the cottonseed meal and the peanut meal according to the mass ratio of 60%, 20%, 10% and 10%, turning over once a day, and fermenting for 8 days to obtain an auxiliary material A;
(5) respectively culturing yeast, lactobacillus and saccharomycetes into bacterial liquids with the concentration of 1 × 108/ml according to the volume ratio of 2.5: 2.5: 1.5, preparing mixed bacteria liquid;
(6) and (3) uniformly adding the cultured mixed bacterial liquid in the step (5) into the auxiliary material A according to the proportion of 2 percent by weight, uniformly stirring, compacting, covering a film, carrying out anaerobic fermentation for 6 days, crushing, briquetting and packaging to obtain the feed.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications to some parts of the technical solutions by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.
Claims (1)
1. The method for recycling the molasses alcohol waste liquid at high value is characterized by comprising the following steps:
step 1, adding a flocculating agent and a filter aid into the beet alcohol waste liquor, standing for 2-24 hours at the temperature of 30-100 ℃, adsorbing impurities, removing suspended matters, and standing to obtain supernatant;
step 2, passing the supernatant through a ceramic membrane with the aperture of 0.05-0.1 mu m, setting the operating pressure of the microfiltration process to be 0.2-0.3 Mpa and the operating temperature to be 40-70 ℃; removing mycoprotein and other particle impurities in the waste liquid to obtain filtrate;
step 3, evaporating and concentrating the filtrate until the solid content is 30% -70%, and obtaining filtrate;
step 4, separating the filtrate in a Sequential Simulated Moving Bed (SSMB) separation device to obtain three fractions of an extracting solution containing betaine, a residual sugar solution and a salt solution;
step 5, performing activated carbon decoloration on the extract of the betaine at the temperature of 60-75 ℃ for 30-45 min, concentrating and crystallizing the decolored feed liquid, and drying by a fluidized bed to obtain a finished product of the betaine;
6, decoloring the salt solution component obtained in the step 4 by using activated carbon, controlling the temperature at 60-75 ℃ and the decoloring time at 30-45 min, concentrating and crystallizing the decolored feed liquid, and drying by using a fluidized bed to obtain a finished product of potassium salt;
step 7, mixing the sugar residue-containing liquid obtained in the step 4, the waste beet chips and the bean pulp according to the mass ratio of 35-55% of the sugar residue-containing liquid, 20-40% of the waste beet chips and 20-40% of the bean pulp; mixing the above materials, stacking naturally, turning once a day, and fermenting for 4-10 days to obtain adjuvant A;
step 8, uniformly adding mixed bacteria liquid of saccharomycetes, lactic acid bacteria and saccharomycetes into the auxiliary material A according to the proportion of 0.2-3% by weight to obtain mixed feed;
step 9, uniformly stirring the mixed feed, covering a plastic film, sealing, compacting, performing anaerobic fermentation for 3-6 days, crushing, briquetting and packaging to obtain the feed;
the filter aid in the step 1 consists of 40-90% by volume of calcium oxide and 10-60% by volume of phosphoric acid, wherein the addition amount of the filter aid is 70-150 ppm; the flocculating agent is polyacrylamide;
the SSMB separation conditions and parameters: the eluent is pure water, the operation temperature is 40-60 ℃, the simulated moving bed chromatographic column is 6 columns, the columns are switched in different areas through a double-channel automatic valve, and the stationary phase adsorbent filled in the columns is strong acid calcium type or sodium type ion exchange resin;
The crosslinking degree of the stationary phase adsorbent is 2% -8%, and the mesh number is 100-400 meshes;
the yeast is any one or a mixture of at least two of candida utilis, zygosaccharomyces rouxii and pseudomomyces margarii; the lactobacillus is active lactobacillus brevis and/or lactobacillus buchneri, and the saccharifying bacteria is aspergillus oryzae and/or aspergillus niger;
the mixed bacteria liquid in the step 8 is respectively cultured by saccharomycetes, lactobacillus and saccharomycetes to the concentration of 1 multiplied by 108Bacterial liquid per ml, wherein the bacterial liquid is prepared from the following components in a volume ratio of (1.5-2.5): (1.5-2.5): (0.5-1.5) and mixing and stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877313.9A CN107788203B (en) | 2017-09-25 | 2017-09-25 | High-value recycling method for molasses alcohol waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877313.9A CN107788203B (en) | 2017-09-25 | 2017-09-25 | High-value recycling method for molasses alcohol waste liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107788203A CN107788203A (en) | 2018-03-13 |
| CN107788203B true CN107788203B (en) | 2022-01-18 |
Family
ID=61531980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710877313.9A Active CN107788203B (en) | 2017-09-25 | 2017-09-25 | High-value recycling method for molasses alcohol waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107788203B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108928943B (en) * | 2018-07-09 | 2021-08-20 | 格翎（上海）环境科技有限公司 | Method for treating alcohol waste liquid discharged from molasses alcohol factory |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413891A (en) * | 2009-02-25 | 2012-04-11 | 丹尼斯克有限公司 | Separation process |
| CN103570569A (en) * | 2013-10-17 | 2014-02-12 | 华南理工大学 | Method for preparing glycine betaine by using beet ethyl alcohol waste liquor |
-
2017
- 2017-09-25 CN CN201710877313.9A patent/CN107788203B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413891A (en) * | 2009-02-25 | 2012-04-11 | 丹尼斯克有限公司 | Separation process |
| CN103570569A (en) * | 2013-10-17 | 2014-02-12 | 华南理工大学 | Method for preparing glycine betaine by using beet ethyl alcohol waste liquor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107788203A (en) | 2018-03-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104230004B (en) | A kind of biotechnological formulation processing glutamic acid fermentation waste water | |
| CN103723894B (en) | A kind of New treatment method of threonine mother liquid | |
| CN102701507B (en) | Method for treating high-concentration wastewater of glutamic acid | |
| CN102503019B (en) | Method for realizing biogas slurry reutilization by recycling biogas slurry | |
| CN107721966A (en) | A kind of Suaeda salsa anthocyanidin and biogenic salt combined extraction method | |
| Núñez et al. | Separation and purification techniques for the recovery of added-value biocompounds from waste activated sludge. A review | |
| CN114289446A (en) | Resourceful treatment method for kitchen waste | |
| CN111574570B (en) | Comprehensive utilization method of cordyceps militaris culture residues | |
| CN104371000A (en) | Method for extracting glutathione and ribonucleic acid in beer waste yeast with high efficiency | |
| CN107602404B (en) | Method for extracting high-purity betaine from molasses alcohol waste liquid | |
| CN104745666A (en) | New technology for extracting L-glutamine | |
| CN107788203B (en) | High-value recycling method for molasses alcohol waste liquid | |
| CN113135581A (en) | Process for preparing magnesium potassium sulfate and potassium sulfate by extracting potassium from corn soaking liquid | |
| CN102850408A (en) | Method for preparing xylose and arabinose by using simulated moving chromatography | |
| CN106544372A (en) | A kind of method that gamma aminobutyric acid is purified from zymotic fluid | |
| CN111642730A (en) | Soy sauce residue cyclic elution utilization method, product and equipment | |
| CN105274179A (en) | Process for extracting L-isoleucine | |
| CN113135580B (en) | Process for preparing artificial carnallite and potassium chloride by extracting potassium from corn soaking solution | |
| CN101434973B (en) | Process for extracting anthocyanidin in blackcurrant by aqueous enzymatic method | |
| CN101023786A (en) | Method for comprehensively treating squeezed juice of boccoli and white cauliflower stem and leaves | |
| CN110342966A (en) | A kind of quick, the effective dehydrating method of the useless bacteria residue of vitamin c fermenting | |
| CN102146101B (en) | Method for extracting humic acid substances from methane fluid | |
| CN103232354A (en) | Method for separating heteroacid from valine fermentation liquid | |
| CN107594473A (en) | A kind of Suaeda salsa biogenic salt and Betacyanins integrated extraction technique | |
| CN104744277B (en) | Simulated moving bed and method for extracting three-branch chain amino acid based on simulated moving bed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |