CN104826366B - A kind of processing method of erythritol dreg - Google Patents
A kind of processing method of erythritol dreg Download PDFInfo
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- CN104826366B CN104826366B CN201510277092.2A CN201510277092A CN104826366B CN 104826366 B CN104826366 B CN 104826366B CN 201510277092 A CN201510277092 A CN 201510277092A CN 104826366 B CN104826366 B CN 104826366B
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- dreg
- erythritol
- settling tank
- polyacrylamide solution
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- UNXHWFMMPAWVPI-UHFFFAOYSA-N Erythritol Natural products OCC(O)C(O)CO UNXHWFMMPAWVPI-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000004386 Erythritol Substances 0.000 title claims abstract description 35
- UNXHWFMMPAWVPI-ZXZARUISSA-N erythritol Chemical compound OC[C@H](O)[C@H](O)CO UNXHWFMMPAWVPI-ZXZARUISSA-N 0.000 title claims abstract description 35
- 229940009714 erythritol Drugs 0.000 title claims abstract description 35
- 235000019414 erythritol Nutrition 0.000 title claims abstract description 35
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 229920002401 polyacrylamide Polymers 0.000 claims description 26
- 150000003839 salts Chemical class 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 6
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 6
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 6
- 239000000872 buffer Substances 0.000 claims description 5
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- 238000002156 mixing Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 6
- 238000000855 fermentation Methods 0.000 description 5
- 230000004151 fermentation Effects 0.000 description 5
- 239000008187 granular material Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention provides the processing method of a kind of erythritol dreg, processes erythritol dreg in certain sequence with multiple compounds, just can reach efficient solid-liquid separation effect.The present invention has that energy consumption is low, it is little to invest, method is simple, operating cost is low, effect is notable, pollutant discharge amount is few and the advantage such as applicable industrialized production；There is significant economic benefit, social benefit and environmental benefit.
Description
Technical field
The invention belongs to technical field of functional sugar production, be specifically related to the processing method of a kind of erythritol dreg.
Background technology
After erythritol fermentation ends, by ceramic membrane filter after fermentation liquor high temperature sterilize, dreg being separated with alcohol liquid, liquid dreg pH value is the lowest, only 1-4, without value, can only drain as sewage, but dreg organic nutrition enriches, COD is high, about 300,000 mg/litre, make Sewage Disposal intractability strengthen, have a strong impact on sewage disposal index.
Erythritol dreg is the product after culture propagation, and water content is between 90-95%, and the solids in dreg is in addition to containing a large amount of mycelium, also rich in the content of release after Organic substance, tropina and cell rupture.Therefore solid-liquid separation is extremely difficult.Fermentation industry in early days, dreg typically takes the method for natural drying, but this method floor space is big, and the dry in the sun time is long, distributes odor pollution environment during dry in the sun.Yeast diameter used by erythritol fermentation is between 50-100nm, amassing than common fermentation thalline will be little, and solids proportion and water in dreg is unanimous on the whole, moisture all can not be separated by traditional solid-liquid separating equipment such as belt press, disc centrifuge, tube centrifuge etc..Although and dreg can be dried by existing dreg drying plant completely, but owing to needing substantial amounts of heat, high cost in the too high drying course of dreg water content, the dreg value after drying is the highest.Owing to erythritol dreg pH value is on the low side, thalline volume is less than normal, and existing chemical conditioning agent prescription combines flocculant dehydration and it is not had any effect.
Summary of the invention
The problems referred to above existed in view of prior art, the invention provides the processing method of a kind of erythritol dreg.
For achieving the above object and other relevant purposes, the present invention provides the processing method of a kind of erythritol dreg, mainly comprises the steps:
(1) allotment polyacrylamide solution, and stand, standby；
(2) erythritol dreg is transferred in settling tank；
(3) in settling tank, add salt reagent, stir evenly so that it is form buffer with erythritol dreg；
(4) aluminium polychlorid is added in settling tank, stir evenly；
(5) step (1) gained polyacrylamide solution is added in settling tank, stir evenly, stand, solid-liquid separation；
(6) step (5) gained liquid is released, solid is collected, dry in the sun.
According to one of embodiment of the present invention, described polyacrylamide is PAMC, and the mass percent concentration of described polyacrylamide solution is 0.5-1%.
Preferably, described polyacrylamide solution allocation process stirs rapidly after being added to the water by polyacrylamide particle and within 15-30 minute, makes granule be evenly distributed in water, stands, polyacrylamide solution time of repose 12-24 hour the most again.
Stand 12-24 hour after polyacrylamide solution allotment, polyacrylamide chain can be made effectively to be extended, and be also unlikely to make its flocculating property reduce.
According to another embodiment of this law, described erythritol dreg water content is at 90%-95%, pH value 1-4.
According to a further embodiment of the present invention, step (3) described salt reagent is selected from any one in the salt of weak acid that can form buffer with described erythritol dreg.
Above-mentioned salt of weak acid includes Weak monoacid salt and Multiple Weak Acid salt.
Erythritol dreg contains organic acid, salt of weak acid or Multiple Weak Acid salt can make dreg form buffer with organic acid effect, provides a stable pH environment for the flocculation of postorder solids.
Preferably, described salt reagent one in potassium dihydrogen phosphate, sodium carbonate, sodium bicarbonate, sodium acetate.
It is further preferred that described salt reagent is potassium dihydrogen phosphate, the quality of described potassium dihydrogen phosphate is the 0.5-1.5% of described erythritol dreg quality.
According to a further embodiment of the present invention, the quality of described aluminium polychlorid is the 0.5-1.5% of described erythritol dreg quality.
Preferably, stir 15-30 minute after adding described aluminium polychlorid.
Aluminium polychlorid adds in erythritol dreg with the form of pressed powder, can adsorb the solids in dreg and flocculate into little group.
According to a further embodiment of the present invention, the amount of described polyacrylamide solution is the 10%-20% that described erythritol dreg liquid is long-pending.
Preferably, stir 15-30 minute after adding described polyacrylamide solution.
The little group that polyaluminium aluminum flocculation becomes can be attached together and flocculate into agglomerate by polyacrylamide.Time of repose 12-24 hour.Solids in dreg flocculates into one and floats on liquid level, and liquid is clarified.
According to a further embodiment of the present invention, step (6) described solid aqueous amount is less than 50%.
Compared with prior art, the medicine have the advantages that the present invention provides the processing method of a kind of erythritol dreg, in certain sequence erythritol dreg is processed with several compounds, just can reach efficient solid-liquid separation effect.The present invention has that energy consumption is low, it is little to invest, method is simple, operating cost is low, effect is notable, pollutant discharge amount is few and the advantage such as applicable industrialized production；There is significant economic benefit, social benefit and environmental benefit.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be understood other advantages and effect of the present invention easily by the content disclosed by this specification.The present invention can also be carried out by the most different detailed description of the invention or apply, and the every details in this specification can also carry out various modification or change based on different viewpoints and application under the spirit without departing from the present invention.
It should be clear that the conventional equipment in the not concrete process equipment indicated or device all use this area in the following example or device；All force value and scope are all referring to absolute pressure.
Additive method step can also be there is before and after described combination step in addition, it is to be understood that the one or more method steps mentioned in the present invention do not repel or additive method step can also be inserted, except as otherwise noted between these steps specifically mentioned；Will also be understood that, combination annexation between the one or more equipment/devices mentioned in the present invention is not repelled and can also be there are other equipment/devices before and after described unit equipment/device or can also insert other equipment/devices, except as otherwise noted between these two equipment/devices specifically mentioned.And, except as otherwise noted, the numbering of various method steps is only the convenient tool differentiating various method steps, rather than for limiting the ordering of various method steps or limiting the enforceable scope of the present invention, being altered or modified of its relativeness, in the case of without essence change technology contents, when being also considered as the enforceable category of the present invention.
Embodiment
1
The present invention relates to the processing method of a kind of erythritol dreg, comprise the steps:
Step 1, allotment mass percent concentration are 1% polyacrylamide solution, during allotment, are first added to the water by load weighted polyacrylamide particle, stir rapidly 30min, make granule be evenly distributed in water, and then time of repose 24 hours, standby；
Step 2, by water content 90%-95%, the erythritol dreg of pH value 1-4 is squeezed in settling tank；
Step 3, pour in settling tank by accounting for the biphosphate k particle that dreg mass percent is 1.5%, open agitating device and be stirred, mixing time 30 minutes；
Step 4, pour in settling tank by accounting for the polyaluminium aluminium powder that dreg mass percent is 1.5%, open agitating device and be stirred, mixing time 30 minutes；
Step 5, the polyacrylamide solution accounting in the step 1 that dreg liquor ratio is 20% preparation is driven in settling tank, unlatching agitating device is stirred, mixing time 30 minutes, it is then shut off agitating device in settling tank, stands 24 hours, solids in dreg flocculates into one and floats on liquid level, and liquid is clarified；
Step 6, open leakage fluid dram below settling tank, release liquid, after treating pot liquid discharge, open the discharging opening below settling tank, pockets of dreg of flocculate releasing, then it is deposited in vacant lot and carries out dry in the sun.
Embodiment
2
The present invention relates to the processing method of a kind of erythritol dreg, comprise the steps:
Step 1, allotment mass percent concentration are 0.5% polyacrylamide solution, during allotment, are first added to the water by load weighted polyacrylamide particle, stir rapidly 15min, make granule be evenly distributed in water, and then time of repose 12 hours, standby；
Step 2, by water content 90%-95%, the erythritol dreg of pH value 2-3 is squeezed in settling tank；
Step 3, pour into accounting for the sodium carbonate particle that dreg mass percent is 1.5% in settling tank, open agitating device and be stirred, mixing time 30 minutes；
Step 4, pour in settling tank by accounting for the polyaluminium aluminium powder that dreg mass percent is 1.5%, open agitating device and be stirred, mixing time 30 minutes；
Step 5, the polyacrylamide solution accounting in the step 1 that dreg liquor ratio is 20% preparation is driven in settling tank, unlatching agitating device is stirred, mixing time 30 minutes, it is then shut off agitating device in settling tank, stands 12 hours, solids in dreg flocculates into one and floats on liquid level, and liquid is clarified；
Step 6, open leakage fluid dram below settling tank, release liquid, after treating pot liquid discharge, open the discharging opening below settling tank, pockets of dreg of flocculate releasing, then it is deposited in vacant lot and carries out dry in the sun.
Embodiment
3
The present invention relates to the processing method of a kind of erythritol dreg, comprise the steps:
Step 1, allotment mass percent concentration are 0.8% polyacrylamide solution, during allotment, are first added to the water by load weighted polyacrylamide particle, stir rapidly 20min, make granule be evenly distributed in water, and then time of repose 18 hours, standby；
Step 2, by water content 90%-95%, the erythritol dreg of pH value 2-3 is squeezed in settling tank；
Step 3, pour in settling tank by accounting for the sodium acetate granule that dreg mass percent is 1.2%, open agitating device and be stirred, mixing time 30 minutes；
Step 4, pour in settling tank by accounting for the polyaluminium aluminium powder that dreg mass percent is 1.3%, open agitating device and be stirred, mixing time 30 minutes；
Step 5, the polyacrylamide solution accounting in the step 1 that dreg liquor ratio is 15% preparation is driven in settling tank, unlatching agitating device is stirred, mixing time 30 minutes, it is then shut off agitating device in settling tank, stands 12 hours, solids in dreg flocculates into one and floats on liquid level, and liquid is clarified；
Step 6, open leakage fluid dram below settling tank, release liquid, after treating pot liquid discharge, open the discharging opening below settling tank, pockets of dreg of flocculate releasing, then it is deposited in vacant lot and carries out dry in the sun.
Above embodiment illustrates that embodiment disclosed by the invention, can not be interpreted as limitation of the present invention.Additionally, various amendments listed herein and invention in method, the change of compositions, be apparent from for those skilled in the art without departing from the scope and spirit in the present invention.Although the multiple particular preferred embodiment having combined the present invention has carried out concrete description to the present invention, it is to be understood that, the present invention should not be limited only to these specific embodiments.It is true that various as above for those skilled in the art obvious amendment obtain invention and be intended to be included within the scope of this invention.
Claims (7)
1. the processing method of an erythritol dreg, it is characterised in that mainly comprise the steps:
(1) allotment polyacrylamide solution, and stand, standby；
(2) erythritol dreg is transferred in settling tank；
(3) in settling tank, add salt reagent, stir evenly so that it is form buffer with erythritol dreg；
(4) aluminium polychlorid is added in settling tank, stir evenly；
(5) step (1) gained polyacrylamide solution is added in settling tank, stir evenly, stand, solid-liquid separation；
(6) step (5) gained liquid is released, solid is collected, dry in the sun；
Step (3) described salt reagent is selected from any one in the salt of weak acid that can form buffer with described erythritol dreg.
2. method as claimed in claim 1, it is characterised in that described polyacrylamide is PAMC, and the mass percent concentration of described polyacrylamide solution is 0.5-1%.
3. method as claimed in claim 1, it is characterised in that described salt reagent one in potassium dihydrogen phosphate, sodium carbonate, sodium bicarbonate, sodium acetate.
4. method as claimed in claim 3, it is characterised in that described salt reagent is potassium dihydrogen phosphate, and the quality of described potassium dihydrogen phosphate is the 0.5-1.5% of described erythritol dreg quality.
5. method as claimed in claim 1, it is characterised in that the quality of described aluminium polychlorid is the 0.5-1.5% of described erythritol dreg quality.
6. method as claimed in claim 2, it is characterised in that the amount of described polyacrylamide solution is the 10-20% that described erythritol dreg liquid is long-pending.
7. method as described in any one of claim 1-6, it is characterised in that step (6) described solid aqueous amount is less than 50%.
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| CN201510277092.2A CN104826366B (en) | 2015-05-27 | 2015-05-27 | A kind of processing method of erythritol dreg |
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| CN201510277092.2A CN104826366B (en) | 2015-05-27 | 2015-05-27 | A kind of processing method of erythritol dreg |
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| CN115074391B (en) * | 2022-07-11 | 2025-01-14 | 广东肇庆星湖生物科技股份有限公司 | Method for preparing alternative yeast nitrogen source by using erythritol fungus residues |
| CN116354750A (en) * | 2023-03-28 | 2023-06-30 | 伊犁川宁生物技术股份有限公司 | A kind of processing method of erythromycin thiocyanate bacteria residue |
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| JP2003170006A (en) * | 2001-12-11 | 2003-06-17 | Kanegafuchi Chem Ind Co Ltd | Method for removing solid suspension |
| CN101323862B (en) * | 2008-07-24 | 2011-01-12 | 南阳普康药业有限公司 | Processing process of albiotic residue |
| PT104691B (en) * | 2009-07-28 | 2013-04-22 | Univ Tras Os Montes E Alto Douro | PROCESS OF OBTAINING DIETARY FIBER FROM MUSHROOMS AND THEIR FIBER |
| CN103285662B (en) * | 2013-06-26 | 2015-01-07 | 上海纯源科技有限公司 | Method for efficiently dehydrating medecamycin mushroom residues |
| CN104212840B (en) * | 2014-09-03 | 2017-12-12 | 郑州大学 | A kind of processing method of antibiotic fermentation bacteria residue |
| CN104388475A (en) * | 2014-11-21 | 2015-03-04 | 山东省食品发酵工业研究设计院 | Method for recycling yeast abandoned after erythritol production |
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