CN106186398A - A kind of refined sugar that processes is from the method handing over waste liquid - Google Patents
A kind of refined sugar that processes is from the method handing over waste liquid Download PDFInfo
- Publication number
- CN106186398A CN106186398A CN201610650811.5A CN201610650811A CN106186398A CN 106186398 A CN106186398 A CN 106186398A CN 201610650811 A CN201610650811 A CN 201610650811A CN 106186398 A CN106186398 A CN 106186398A
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- refined sugar
- waste liquid
- membrane
- handing over
- over waste
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of process refined sugar from hand over waste liquid method, belong to light industry technical field.The method is that filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution by refined sugar after handing over waste liquid to be filtered to remove suspended impurity by flame filter press；Described refined sugar is from handing over waste liquor PH ＞ 11；In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules, the molecular cut off position ＜ 800Da of 300Da ＜ NF membrane；Nanofiltration device operation maximum pressure 2.0 3.0MPa.By the inventive method, Recovery Purifying rate reaches more than 80%, and pigment interception reaches more than 98%；Cross the permeate after film treated to be returned directly to main flow and reuse, due to the eluent after Regeneration Treatment mainly containing sugar and salt, can be recovered in main flow not produce pollution, greatly reduce regenerative agent and washings consumption simultaneously, reduce waste water processing pressure.
Description
Technical field
The invention belongs to light industry technical field, be specifically related to a kind of process refined sugar from hand over waste liquid method, especially relate to
And a kind of utilize Nanofiltration-membrane technique to refined sugar from handing over the technology that processes of regenerated alkaline waste water.
Background technology
Refined sugar production process mainly uses carbonaceous adsorbent or ion exchange resin to decolour, current refined sugar factory owner
Ion exchange resin to be selected decolours, and decolorizing resin carries out zeolite regeneration with salt and strong base solution again.Therefore decolouring is regenerated
In liquid, mainly some regenerative agents not utilized by resin (sodium chloride and sodium hydroxide) and the syrup that is eluted out are original
Coloring matter, there is the features such as salinity is high, alkalescence is high, colour is deep.The coloring matter wherein contained mainly Caulis Sacchari sinensis and
Being formed in syrup heating process, major part is polyphenols, the pigment that Caulis Sacchari sinensis and the course of processing are formed have resistance to vapour, heat-resisting,
Resistance to oxidation, difficulty are decomposed by the microorganisms, place the features such as colour-fast for a long time, and this makes it refined sugar and produces decolorizing resin regeneration
A common technology difficult problem during treating waste liquid.
Nanofiltration is the pressurization that feed liquid passes through pump, flows through along the surface of NF membrane with certain flow rate, retains molecule more than film
The material molecule of amount is not through film and flows back to batch can, passes through film less than the material molecule of retaining molecular weight, forms dialysis solution.Nanofiltration
Film can realize the material of larger molecular weight and separate with water, inorganic salt.
PH waste liquid below 11 can only be processed by existing nanofiltration processing method, and it is frequently necessary to twice or above
Nanofiltration just can obtain good concentrated effect, and concentrated solution it is frequently necessary to Ca2+After carrying out decoloring reaction with pigment, further enter
Row nanofiltration；These have significant limitation in actual applications, and the most how overcoming the deficiencies in the prior art is current light industry
The problem that technical field needs solution badly.
Summary of the invention
The invention aims to solve the deficiencies in the prior art, it is provided that a kind of refined sugar that processes is from the side handing over waste liquid
Method, the method utilizes Nanofiltration-membrane technique to refined sugar from handing over regenerated alkaline waste water to process, not only solves refined sugar from friendship
The directly discharge of waste water brings the problem of the biggest pressure to environment, also overcomes the limitation in actual application.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of refined sugar that processes, from the method handing over waste liquid, is from handing over waste liquid to be filtered to remove suspension by flame filter press by refined sugar
After impurity, filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution；
Described refined sugar is from handing over waste liquor PH ＞ 11；
In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules,
The molecular cut off position ＜ 800Da of 300Da ＜ NF membrane, i.e. molecular cut off are more than 300Da, and less than 800 Da；
Nanofiltration device operation maximum pressure 2.0-3.0MPa.
It is further preferred that described refined sugar is from handing over waste liquor PH ＞ 11, and pH≤12.
It is further preferred that described refined sugar is 20-40 DEG C from the temperature handing over waste liquid.
Refined sugar of the present invention is to obtain in conventional sugarcane sugar manufacturing process from handing over waste liquid, and general production procedure is:
After Caulis Sacchari sinensis subsider juice is by continuous ionic exchange desalination bleaching, after resin absorption ability is saturated, use saline solution that ion is handed over
Change resin and carry out zeolite regeneration.Ion exchange resin produces a large amount of waste liquids through Regeneration Treatment, and this waste liquid is refined sugar from friendship
Waste liquid, for furvous opaque liquid, containing a small amount of insoluble solid, acid ion, alkali and salt.
The permeate that the present invention obtains directly can carry out zeolite regeneration to the ion exchange resin decoloured for refined sugar.
The present invention also has good treatment effect for the refined sugar of pH≤11 from friendship waste liquid, and its effect has with the present invention's
Benefit effect is suitable.
Compared with prior art, it has the beneficial effect that the present invention
(1) refined sugar is after handing over regenerated alkaline waste water by nanofiltration membrane treatment, and salkali waste liquid film Recovery Purifying rate reaches more than 80%,
Pigment interception reaches more than 98%, and after purification, permeate is colourless, treated can not be returned directly to main flow and reuse, to being used for
The ion exchange resin of refined sugar decolouring carries out zeolite regeneration；
(2) due to the permeate after Regeneration Treatment mainly containing sugar and salt, can be recovered in main flow not produce pollution,
Greatly reduce regenerative agent and washings consumption simultaneously, reduce waste water processing pressure, process technique compared to conventional biochemical, often stand
Side's rice refined sugar, from handing over treatment cost of waste liquor can reduce 300-600 unit, is crossed the concentrated solution after film and is collected into molasses.
(3) by the inventive method, the pH waste liquid more than 11 can be processed, and only need simple single treatment, only
Changing the response rate and i.e. can reach more than 80%, pigment interception is just up to more than 98%, and need not Ca2+Desolventing technology, compare
In tradition refined sugar from handing over process for treating waste liquor, 10-20 mu of can saving the area, technique used by the present invention produces refined sugar per ton can
Save sodium chloride 20kg-30kg, sodium hydroxide 1kg-1.5kg, be a kind of preferably simple type process for treating industrial waste water, if
Refine sugar refinery to promote in the whole nation, refined sugar per ton cost-saved 20-30 unit.Produce 500000 tons of refined sugar refinery per year, cost-saved
10000000 yuan-1,500 ten thousand yuan.
Accompanying drawing explanation
Fig. 1 is that the present invention processes the refined sugar step schematic diagram from the method handing over waste liquid.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this
Bright scope.Unreceipted concrete technology or condition person in embodiment, according to the technology described by the document in this area or condition
Or carry out according to product description.Agents useful for same or instrument unreceipted production firm person, be and can be obtained by purchase
Conventional products.
Embodiment 1
A kind of refined sugar that processes, from the method handing over waste liquid, is from handing over waste liquid to be filtered to remove suspension by flame filter press by refined sugar
After impurity, filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution；The permeate obtained can directly to for
The ion exchange resin of refined sugar decolouring carries out zeolite regeneration.
Described refined sugar is 11.8 from handing over waste liquor PH；
In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules；Nanofiltration
The molecular cut off of film is more than 300Da, and less than 800Da；
Nanofiltration device operation maximum pressure 2.0MPa.
Described refined sugar is 20 DEG C from the temperature of friendship waste liquid.
Embodiment 2
A kind of refined sugar that processes, from the method handing over waste liquid, is from handing over waste liquid to be filtered to remove suspension by flame filter press by refined sugar
After impurity, filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution；The permeate obtained can directly to for
The ion exchange resin of refined sugar decolouring carries out zeolite regeneration.
Described refined sugar is from handing over waste liquor PH ＞ 11, and pH≤12.
In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules；
The molecular cut off of NF membrane is more than 300Da, and less than 800Da；
Nanofiltration device operation maximum pressure 3.0MPa.
Described refined sugar is 40 DEG C from the temperature of friendship waste liquid.
Embodiment 3
A kind of refined sugar that processes, from the method handing over waste liquid, is from handing over waste liquid to be filtered to remove suspension by flame filter press by refined sugar
After impurity, filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution；The permeate obtained can directly to for
The ion exchange resin of refined sugar decolouring carries out zeolite regeneration.
Described refined sugar is from handing over waste liquor PH ＞ 11；
In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules；Nanofiltration
The molecular cut off of film is more than 300Da, and less than 800Da；
Nanofiltration device operation maximum pressure 2.5MPa.
Described refined sugar is 30 DEG C from the temperature of friendship waste liquid.
Application example
As it is shown in figure 1, after Caulis Sacchari sinensis subsider juice is by continuous ionic exchange desalination bleaching, after resin absorption ability is saturated, use salt
Aqueous slkali carries out zeolite regeneration to ion exchange resin.Ion exchange resin produces a large amount of waste liquids, this waste liquid through Regeneration Treatment
Be refined sugar from hand over waste liquid, for furvous opaque liquid, containing a small amount of insoluble solid, acid ion, alkali concn 1%, salt is dense
Degree 10%.
Take this refined sugar of 44L from handing over regenerated alkaline waste liquid by plate-and-frame filtration, removing suspended impurity.Then filtrate is passed through
Nanofiltration device unit.
Selected NF membrane is hydrophilic, and membrane material is polyamide.
Selected NF membrane uses 1812 rolled membrane modules；The molecular cut off of NF membrane is more than 300Da, and less than 800Da.
Selected nanofiltration device operation maximum pressure 2.0-3.0MPa, temperature of charge 25-28 DEG C, material pH is 11.5-12.
Refined sugar, after handing over regenerated alkaline waste water by G-20 nanofiltration membrane treatment, obtains pale yellow transparent filtrate 36L, furvous
Opaque dope 8L.Due to higher containing more acid ion and salt ion electrical conductivity in waste water, carry out charging basket along with test
The increase of middle feed concentration, percolate flux progressively decays, and its excursion is within expection.Permeate shows pale yellow transparent
Shape, the opaque shape of stock solution furvous, show that the pigment in waste water is intercepted.The selected NF membrane average flux to waste water filtering
For 604mL/min.This film is obvious to Organic substance effects such as spent lye removing pigments, retains inorganic salt preferable.After testing, useless
Liquid light transmittance is 83.2%, and permeate light transmittance is 99.7%, and concentrated solution light transmittance is 53.8%.
Salkali waste liquid film purifies recycled in its entirety rate and reaches more than 80%, and in the case of feed liquid abundance, the response rate also can enter one in theory
Step improves.Pigment interception reaches more than 98%, and after purification, permeate is colourless, treated can not be returned directly to main flow and reuse,
Directly the ion exchange resin decoloured for refined sugar is carried out zeolite regeneration.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (4)
1. one kind processes refined sugar from the method handing over waste liquid, it is characterised in that by refined sugar from handing over waste liquid to pass through flame filter press
After being filtered to remove suspended impurity, filtrate enters nanofiltration device and processes, and obtains permeate and concentrated solution；
Described refined sugar is from handing over waste liquor PH ＞ 11；
In nanofiltration device, NF membrane is hydrophilic, and NF membrane material is polyamide；NF membrane uses 1812 rolled membrane modules；Nanofiltration
The molecular cut off of film is more than 300Da, and less than 800Da；
Nanofiltration device operation maximum pressure 2.0-3.0MPa.
Process refined sugar the most according to claim 1 is from the method handing over waste liquid, it is characterised in that described refined sugar is from friendship
Waste liquor PH ＞ 11, and pH≤12.
Process refined sugar the most according to claim 1 is from the method handing over waste liquid, it is characterised in that described refined sugar is from friendship
The temperature of waste liquid is 20-40 DEG C.
Process refined sugar the most according to claim 1 from hand over waste liquid method, it is characterised in that the permeate obtained to
Ion exchange resin in refined sugar decolouring carries out zeolite regeneration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650811.5A CN106186398A (en) | 2016-08-10 | 2016-08-10 | A kind of refined sugar that processes is from the method handing over waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650811.5A CN106186398A (en) | 2016-08-10 | 2016-08-10 | A kind of refined sugar that processes is from the method handing over waste liquid |
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| Publication Number | Publication Date |
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| CN106186398A true CN106186398A (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610650811.5A Pending CN106186398A (en) | 2016-08-10 | 2016-08-10 | A kind of refined sugar that processes is from the method handing over waste liquid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503084A (en) * | 2018-04-10 | 2018-09-07 | 凌国庆 | A kind for the treatment of process of decolorizing resin regeneration liquid waste |
| CN112409817A (en) * | 2020-11-16 | 2021-02-26 | 南京甘汁园糖业有限公司 | Process for extracting natural pigment from nanofiltration concentrated solution generated by sugar production ion exchange decolorization |
| CN114873817A (en) * | 2022-05-06 | 2022-08-09 | 四川绿沃创新环保工程有限公司 | Purification and reuse method of ion exchange resin regenerated acid or regenerated alkali |
| CN117583038A (en) * | 2024-01-18 | 2024-02-23 | 欧尚元智能装备有限公司 | Sucrose decalcification method and system |
-
2016
- 2016-08-10 CN CN201610650811.5A patent/CN106186398A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 谭文兴等: "纳滤技术处理精炼糖厂离子交换树脂再生脱色液的研究", 《甘蔗糖业》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108503084A (en) * | 2018-04-10 | 2018-09-07 | 凌国庆 | A kind for the treatment of process of decolorizing resin regeneration liquid waste |
| CN112409817A (en) * | 2020-11-16 | 2021-02-26 | 南京甘汁园糖业有限公司 | Process for extracting natural pigment from nanofiltration concentrated solution generated by sugar production ion exchange decolorization |
| CN114873817A (en) * | 2022-05-06 | 2022-08-09 | 四川绿沃创新环保工程有限公司 | Purification and reuse method of ion exchange resin regenerated acid or regenerated alkali |
| CN117583038A (en) * | 2024-01-18 | 2024-02-23 | 欧尚元智能装备有限公司 | Sucrose decalcification method and system |
| CN117583038B (en) * | 2024-01-18 | 2024-04-12 | 欧尚元智能装备有限公司 | Sucrose decalcification method and system |
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Application publication date: 20161207 |
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