CN106630035A - Method for pretreating citric acid waste sweet water - Google Patents
Method for pretreating citric acid waste sweet water Download PDFInfo
- Publication number
- CN106630035A CN106630035A CN201611145957.0A CN201611145957A CN106630035A CN 106630035 A CN106630035 A CN 106630035A CN 201611145957 A CN201611145957 A CN 201611145957A CN 106630035 A CN106630035 A CN 106630035A
- Authority
- CN
- China
- Prior art keywords
- acid waste
- lemon acid
- syrup
- waste syrup
- preprocess method
- 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.)
- Pending
Links
Classifications
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Jellies, Jams, And Syrups (AREA)
Abstract
The invention is applicable to the field of technologies for pretreating citric acid waste sweet water, and provides a method for pretreating citric acid waste sweet water. The method includes steps of A, carrying out cooling treatment on the citric acid waste sweet water; B, adjusting protein iso-electric points of the citric acid waste sweet water obtained at the step A and flocculating and dissolving out proteins; C, stirring the citric acid waste sweet water obtained at the step B and huddling and condensing the dissolved proteins; D, filtering the citric acid waste sweet water obtained at the step C and removing protein impurities to obtain pretreatment liquid of the citric acid waste sweet water. The method has the advantages that the proteins in the citric acid waste sweet water are removed, accordingly, follow-up sewage treatment pressures can be relieved, and the sewage treatment cost can be reduced.
Description
Technical field
The present invention relates to lemon acid waste syrup environmental protection treatment technical field, more particularly to a kind of pre- place of lemon acid waste syrup
Reason method.
Background technology
Citric acid is a kind of important organic acid, is widely used in food, beverage, daily use chemicals and field of medicaments.In production lemon
Substantial amounts of useless syrup can be produced during lemon acid.Useless syrup through anaerobic fermentation, then through aerobic sigestion process, make COD with
And other indexs reach discharge standard.Anaerobe can be in the useless syrup of metabolism the carbohydrate such as glucose produce biogas, but base
This does not utilize the protein such as the glutelin and globulin in useless syrup, needs to degrade what this Partial Protein was brought using aerobic sigestion
COD, extends aeration time, and supplies oxygen consumption power by compressor.Have in high-concentration waste syrup in prior art
The introduction that organic matter is recycled, but the input that the useless syrup low to content of organics is recycled significantly larger than is produced
Go out, the method is simultaneously impracticable.
In summary, prior art there will naturally be in actual use inconvenience and defect, it is therefore necessary to being improved.
The content of the invention
For above-mentioned defect, it is an object of the invention to provide a kind of preprocess method of lemon acid waste syrup, it can
Albumen in effectively to reduce lemon acid waste syrup, mitigates the pressure of follow-up sewage disposal, reduces the cost of sewage disposal.
To achieve these goals, the present invention provides a kind of preprocess method of lemon acid waste syrup, comprises the steps：
A, lemon acid waste syrup is carried out into cooling process.
B, the regulation that the lemon acid waste syrup obtained in step A is carried out albumen isoelectric point, separate out albumen flocculation.
C, the lemon acid waste syrup obtained in step B is stirred, the albumen for making precipitation is united condensation.
D, the lemon acid waste syrup obtained in step C is filtered, removed protein impurities, obtained lemon acid waste syrup pre-
Treatment fluid.
The preprocess method of lemon acid waste syrup of the invention, the cooling is processed and adopts panel radiator；It is described
The regulation of albumen isoelectric point adopts light alkali；The filtration of the lemon acid waste syrup adopts cartridge filter.
The preprocess method of lemon acid waste syrup of the invention, the temperature after the lemon acid waste syrup cooling is 50
DEG C～60 DEG C.
The preprocess method of lemon acid waste syrup of the invention, the lemon acid waste syrup albumen isoelectric point is adjusted and made
Light alkali concn is 0.1%～0.5%.
The preprocess method of lemon acid waste syrup of the invention, the speed of agitator of the lemon acid waste syrup is 40r/
Min～80r/min, the time is 5min～20min.
The preprocess method of lemon acid waste syrup of the invention, the filtering accuracy of the cartridge filter is 0.2mm
～0.6mm, pressure is 0.04MPa～0.08MPa.
The preprocess method of lemon acid waste syrup of the invention, temperature is 55 after the lemon acid waste syrup cooling
℃。
The preprocess method of lemon acid waste syrup of the invention, the lemon acid waste syrup albumen isoelectric point is adjusted and made
Light alkali concn is 0.2%.
The preprocess method of lemon acid waste syrup of the invention, the speed of agitator of the lemon acid waste syrup is 60r/
Min, the time is 10min.
The preprocess method of lemon acid waste syrup of the invention, the cartridge filter filtering accuracy is 0.4mm, is pressed
Power is 0.06MPa.
The present invention is carried out after cooling process by plate type heat exchanger to lemon acid waste syrup, recycles light alkali to its albumen etc.
Electricity point is adjusted, and separates out the albumen flocculation in useless syrup, after stirring, by cartridge filter filtration treatment is carried out, and obtains
Lemon acid waste syrup pretreatment fluid.The present invention is using simply, easily method eliminates lemon acid waste syrup anaerobic fermentation process
The protein such as the glutelin and globulin of difficult degradation, reduce the load of aerobic sigestion, reduce cost of sewage disposal.In addition can be right
The salkali waste crossed used in the present invention and the heat collected by panel radiator are reclaimed, and realize the comprehensive profit of resource and the energy
With.
Description of the drawings
Fig. 1 is the preprocess method flow chart of lemon acid waste syrup of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, the invention provides a kind of preprocess method of lemon acid waste syrup, the method is mainly used in lemon
The albumen purified treatment of the useless syrup of acid, it comprises the steps：
Step 101：Lemon acid waste syrup is carried out into cooling process.
Specifically, the present invention can be carried out at cooling by general heat exchanger and condensing unit to lemon acid waste syrup
Reason so as to reach the temperature range needed for next step 102, such as 50 DEG C～60 DEG C.Preferably, the present invention specifically adopts plate
Formula heat exchanger, not only saves energy, also with higher cooling efficiency and simple structure, easy for installation.
Step 102：The lemon acid waste syrup obtained in step 101 is carried out into the regulation of albumen isoelectric point, makes albumen flocculate
Separate out.
Albumen isoelectric point in the step is adjusted can be realized by showing the solution of alkalescence, such as weak caustic solution and alkalescence
Salting liquid.Certainly, the chemical property based on lemon acid waste syrup, present invention preferably employs concentration is 0.1%～0.5% light alkali
Solution, after the completion of albumen isoelectric point is adjusted, the residual acid content of syrup citric acid of giving up is about 0.2%-0.6%.
Step 103：The lemon acid waste syrup obtained in step 102 is stirred, the albumen for making precipitation is united condensation.Should
Step can be realized by centrifuge, and be 40r/min～80r/min in centrifugal mixer speed, centrifugation time be 5min～
20min, separates out protein efficiency higher.
Step 104：The lemon acid waste syrup obtained in step 103 is filtered, protein impurities are removed, citric acid is obtained
Useless syrup pretreatment fluid.In the embodiment, present invention preferably employs cartridge filter carries out filtration treatment, and the security personnel for adopting
The filtering accuracy of filter is 0.2mm～0.6mm, and pressure is 0.04MPa～0.08MPa, under the filtration parameter, protein impurities
Filtering degree it is higher so that citric acid syrup has more preferable purity.
Preferably, in step 104, the protein impurities that the present invention can will filter out deliver to anaerobic ferment devices carries out anaerobism
Fermentation process, realizes twice laid.
The present invention reduces that a part of COD of difficult degradation in waste water by the albumen in removing lemon acid waste syrup
Content, alleviates the pressure of follow-up sewage disposal, reduces the cost of sewage disposal while being reclaimed to used heat and to front
The salkali waste that operation is produced is made full use of, and also reaches the purpose of waste's reclamation.
In a specific embodiment of the present invention, temperature is 55 DEG C after the cooling of lemon acid waste syrup described in step 101, step
Concentration is 0.2% light alkali regulatory protein isoelectric point used in rapid 102 so that the content of the residual acid of useless syrup citric acid is
0.20%, to the rotating speed of syrup stirring of giving up be in step S103 45r/min, time be 15min, security personnel in step 104 filter
The filtering accuracy of device is 0.5mm, and pressure is 0.06MPa.According to the flow process of step 101- step 104, and using above-mentioned parameter pair
After protein content is processed for the useless syrup of original of 0.005572g/L, useless syrup protein content is changed into 0.003532g/L, protein content
Reduce 36.61%.
In another embodiment of the present invention, temperature is 56 DEG C after the cooling of lemon acid waste syrup described in step 101, step
Concentration is 0.3% light alkali regulatory protein isoelectric point used in 102 so that the content of the residual acid of the syrup citric acid that gives up is 0.25%,
In step S103 to give up syrup stirring rotating speed be 50r/min, the time be 10min, the filtration of the cartridge filter in step 104
Precision is 0.4mm, and pressure is 0.05MPa.According to the flow process of step 101- step 104, and using above-mentioned parameter to protein content
After for the useless syrup process of original of 0.005465g/L, useless syrup protein content is changed into 0.003326g/L, and protein content is reduced
39.14%.
In another embodiment of the present invention, temperature is 57 DEG C after the cooling of lemon acid waste syrup described in step 101, step
Concentration is 0.4% light alkali regulatory protein isoelectric point used in 102 so that the content of the residual acid of the syrup citric acid that gives up is 0.35%,
In step S103 to give up syrup stirring rotating speed be 55r/min, the time be 8min, the filtration of the cartridge filter in step 104
Precision is 0.6mm, and pressure is 0.04MPa.According to the flow process of step 101- step 104, and using above-mentioned parameter to protein content
After for the useless syrup process of original of 0.005312g/L, useless syrup protein content is changed into 0.003416g/L, and protein content is reduced
35.69%.
In another embodiment of the present invention, temperature is 58 DEG C after the cooling of lemon acid waste syrup described in step 101, step
Concentration is 0.5% light alkali regulatory protein isoelectric point used in 102 so that the content of the residual acid of the syrup citric acid that gives up is 0.45%,
In step S103 to give up syrup stirring rotating speed be 70r/min, the time be 5min, the filtration of the cartridge filter in step 104
Precision is 0.3mm, and pressure is 0.07MPa.According to the flow process of step 101- step 104, and using above-mentioned parameter to protein content
After for the useless syrup process of original of 0.005589g/L, useless syrup protein content is changed into 0.003478g/L, and protein content is reduced
37.77%.
In another embodiment of the present invention, temperature is 55 DEG C after the cooling of lemon acid waste syrup described in step 101, step
Concentration is 0.1% light alkali regulatory protein isoelectric point used in 102 so that the content of the residual acid of the syrup citric acid that gives up is 0.55%,
In step S103 to give up syrup stirring rotating speed be 40r/min, the time be 18min, the filtration of the cartridge filter in step 104
Precision is 0.2mm, and pressure is 0.08MPa.According to the flow process of step 101- step 104, and using above-mentioned parameter to protein content
After for the useless syrup process of original of 0.005664g/L, useless syrup protein content is changed into 0.003561g/L, and protein content is reduced
37.13%.
By the various embodiments described above as can be seen that being pre-processed to lemon acid waste syrup using technical scheme
Afterwards, protein content reduces more in useless syrup, and pretreatment treatment effect is obvious.
In sum, the present invention is carried out after cooling process by plate type heat exchanger to lemon acid waste syrup, recycles light alkali
Its albumen isoelectric point is adjusted, the albumen flocculation in useless syrup is separated out, after stirring, is filtered by cartridge filter
Process, obtain lemon acid waste syrup pretreatment fluid.The present invention is using simply, easily method eliminates lemon acid waste syrup anaerobism
The protein such as the glutelin and globulin of sweat difficult degradation, reduce the load of aerobic sigestion, reduce cost of sewage disposal.
The heat that can be collected to the salkali waste used in the present invention excessively and by panel radiator in addition is reclaimed, and realizes resource and the energy
Comprehensive utilization.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of preprocess method of lemon acid waste syrup, it is characterised in that comprise the steps：
A, lemon acid waste syrup is carried out into cooling process；
B, the regulation that the lemon acid waste syrup obtained in step A is carried out albumen isoelectric point, separate out albumen flocculation；
C, the lemon acid waste syrup obtained in step B is stirred, the albumen for making precipitation is united condensation；
D, the lemon acid waste syrup obtained in step C is filtered, removed protein impurities, obtained the pretreatment of lemon acid waste syrup
Liquid.
2. the preprocess method of lemon acid waste syrup according to claim 1, it is characterised in that the cooling is processed and adopted
Panel radiator；The regulation of the albumen isoelectric point adopts light alkali；The filtration of the lemon acid waste syrup adopts cartridge filter.
3. the preprocess method of lemon acid waste syrup according to claim 1, it is characterised in that the lemon acid waste syrup
Temperature after cooling is 50 DEG C～60 DEG C.
4. the preprocess method of lemon acid waste syrup according to claim 1, it is characterised in that the lemon acid waste syrup
It is 0.1%～0.5% that albumen isoelectric point adjusts the light alkali concn for using.
5. the preprocess method of lemon acid waste syrup according to claim 1, it is characterised in that the lemon acid waste syrup
Speed of agitator be 40r/min～80r/min, the time be 5min～20min.
6. the preprocess method of lemon acid waste syrup according to claim 1, it is characterised in that the cartridge filter
Filtering accuracy is 0.2mm～0.6mm, and pressure is 0.04MPa～0.08MPa.
7. the preprocess method of lemon acid waste syrup according to claim 2, it is characterised in that the lemon acid waste syrup
Temperature is 55 DEG C after cooling.
8. the preprocess method of lemon acid waste syrup according to claim 3, it is characterised in that the lemon acid waste syrup
It is 0.2% that albumen isoelectric point adjusts the light alkali concn for using.
9. the preprocess method of lemon acid waste syrup according to claim 4, it is characterised in that the lemon acid waste syrup
Speed of agitator be 60r/min, the time is 10min.
10. the preprocess method of lemon acid waste syrup according to claim 5, it is characterised in that the cartridge filter
Filtering accuracy is 0.4mm, and pressure is 0.06MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145957.0A CN106630035A (en) | 2016-12-13 | 2016-12-13 | Method for pretreating citric acid waste sweet water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611145957.0A CN106630035A (en) | 2016-12-13 | 2016-12-13 | Method for pretreating citric acid waste sweet water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106630035A true CN106630035A (en) | 2017-05-10 |
Family
ID=58825240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611145957.0A Pending CN106630035A (en) | 2016-12-13 | 2016-12-13 | Method for pretreating citric acid waste sweet water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106630035A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736898A (en) * | 2005-07-21 | 2006-02-22 | 华东理工大学 | Treatment method of waste water arising from process of extracting ganglioside from animal brain tissue |
| CN101215066A (en) * | 2007-12-30 | 2008-07-09 | 浙江大学 | Technique for treating chitin waste water |
| CN103466791A (en) * | 2013-09-24 | 2013-12-25 | 日照鲁信金禾生化有限公司 | Improved pre-acidifying treatment process of citric acid wastewater |
-
2016
- 2016-12-13 CN CN201611145957.0A patent/CN106630035A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1736898A (en) * | 2005-07-21 | 2006-02-22 | 华东理工大学 | Treatment method of waste water arising from process of extracting ganglioside from animal brain tissue |
| CN101215066A (en) * | 2007-12-30 | 2008-07-09 | 浙江大学 | Technique for treating chitin waste water |
| CN103466791A (en) * | 2013-09-24 | 2013-12-25 | 日照鲁信金禾生化有限公司 | Improved pre-acidifying treatment process of citric acid wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102674489B (en) | high-concentration ammonia-containing wastewater treatment method based on vapour compression | |
| CN104926675A (en) | Recovery process of low concentration dimethylacetamide | |
| CN104193064B (en) | Produce the treatment process of acid washing water and neutralized wastewater in tetrabromo-bisphenol process | |
| CN101120766B (en) | Monosodium glutamate green manufacturing technology | |
| CN106591379A (en) | Alcohol production method based on comprehensive utilization of waste water | |
| CN103113459A (en) | Method for continuously producing whey soy proteins through soy whey water | |
| CN101648982A (en) | Method for recycling gentamicin from waste active carbon generated by discoloring gentamycin sulfate | |
| CN102603548B (en) | Method for extracting L-alanine from mother solution | |
| CN106630035A (en) | Method for pretreating citric acid waste sweet water | |
| CN104176714A (en) | Method for concentrating titanium dioxide waste acid by adopting reverse osmosis process | |
| CN110171902B (en) | Comprehensive treatment method of metronidazole wastewater | |
| CN109824221A (en) | A kind of water paint waste water treatment system and application method | |
| CN110590074A (en) | High-concentration pickle wastewater treatment process | |
| CN114394708A (en) | High-ammonia nitrogen high-concentration organic wastewater treatment equipment and process thereof | |
| CN105502761B (en) | A kind of guide belt digital printing machine waste water treatment process and device | |
| CN208594142U (en) | A kind of circulating cooling water of power plant zero-emission water treatment system | |
| CN109022502B (en) | Method for producing citric acid by recycling anaerobic digestion solution | |
| CN106745593A (en) | A kind of method of waste water in nano hydrogel material purified treatment gallic acid production | |
| CN206970374U (en) | A kind of wastewater from chemical industry ozone multi-level handling system | |
| CN101210054A (en) | Method for extracting high transparent xanthan gum | |
| CN101948205A (en) | Industrial wastewater recycling processing system | |
| CN109022503A (en) | A method of citric acid is produced using recycling anaerobic digestion solution | |
| CN114920408A (en) | Fermentation liquor recycling treatment process | |
| CN108609790B (en) | A kind of water circulation system of Sodium Hyaluronate clean manufacturing | |
| CN214183017U (en) | One set of device of preparation acid type sophorolipid |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |