CN110422958A - A kind of ramie enzyme degumming waste liquid circulation utilizes method and device - Google Patents
A kind of ramie enzyme degumming waste liquid circulation utilizes method and device Download PDFInfo
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- 230000004151 fermentation Effects 0.000 claims abstract description 21
- 229940088598 enzyme Drugs 0.000 claims description 73
- 239000012530 fluid Substances 0.000 claims description 61
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- 238000009434 installation Methods 0.000 claims description 41
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- 238000001728 nano-filtration Methods 0.000 claims description 23
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- 229910052799 carbon Inorganic materials 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 239000012528 membrane Substances 0.000 claims description 21
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- 238000005273 aeration Methods 0.000 claims description 18
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- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 10
- 238000001471 micro-filtration Methods 0.000 claims description 9
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- 235000019795 sodium metasilicate Nutrition 0.000 claims description 6
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 6
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- 206010044565 Tremor Diseases 0.000 claims description 4
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- 150000005846 sugar alcohols Chemical class 0.000 description 2
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- 238000010521 absorption reaction Methods 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
-
- 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
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
A kind of ramie enzyme degumming waste liquid circulation of the invention utilizes method and device, the utilization of waste liquid filtration cycle is carried out by the way that the committed steps such as fiber crops processing, washing dehydration processing and stain oil processing are bleached, copied to pretreatment decladding, fermentation process, boiling-off, and can be realized by using corresponding device and water is recycled；Its advantage is; circulating processing is carried out to ramie enzyme scouring processes; critical process for generating waste liquid is gradually filtered; and filtrate reciprocation cycle is utilized into processing; the waste of high degree reduced to water, structure of the invention is reasonable, production work process flexible is convenient, and production cost can not only be saved in industrial processes; also can be reduced disposal of pollutants simultaneously protects environment, has good economic society value.
Description
Technical field
The present invention relates to the technical field of waste water processing of bast fibre spinning, especially a kind of ramie enzyme degumming waste liquid circulation utilization side
Method and device.
Background technique
Ramee is a characteristic resources in China, fiber product have moisture absorption rapid heat dissipation, good air permeability, it is not personal,
The advantages that antibacterial, well-pressed beauty, be high-grade natural fibre product.In crudefiber crop bast in addition to containing cellulose, also contain one
The ingredients such as a little impurity, including pectin substance hemicellulose, these colloid packet Guo fiber appearance, by fiber shape cemented together
At harder sheet fiber crops beam.Such fiber crops beam cannot be used directly to spinning, therefore must be to original before the processing of spinning
Fiber crops impose degumming process.China grass degumming is the foundation engineering of textile processing chain, the degummed ramie fiber quality pair obtained after degumming
Textile wearability has a significant impact.Traditional degumming tech is chemical method, carries out kiering, auxiliary with low-kappa number, caustic soda
The processing of oxidant bleach, and mechanical beating, realize the degumming to ramie.However, this method severe reaction conditions, labour is strong
Degree is big, and big energy-consuming, high production cost, environmental pollution is serious, and has certain damage to fiber, keeps ramee mixed and disorderly, combs
Processing difficulties are spun, fiber row yielding is low.In order to reduce the production cost of China grass degumming, the quality of flaxen fiber, the prior art are improved
Ramie biological degumming technology is developed.Biological degumming is that the degumming strain by screening is inoculated on raw ramie, these degummings
Bacterium is using the colloid on ramie as nutrient source, the mass propagation on ramie raw ramie, and secretion degummase decomposes colloid, makes high molecular weight
The macromoleculars such as pectin and hemicellulose resolve into small-molecule substance and are dissolved in water, this is that a kind of degumming under the conditions of mitigation is raw
It produces, production cost can be reduced.
Either biological degumming or chemical degumming technique can all generate largely in production procedure in the degumming stage
Waste water, COD is higher, its direct emission is polluted the environment.Prior art discloses a variety of pairs of China grass degummings
The processing method of waste water, such as Zhang Shenghong SBR process kenaf fibers retting wastewater, collect water inlet, reaction, precipitating and draining in
It is completed in one pond, have the characteristics that simple process, automatization level are high and saves land occupation；Anaerobism, anoxic and aerobic ring in SBR
Border is alternately present, and the open loop or chain rupture for being conducive to refractory organic are converted into degradable substance, control system oxygen supply
Denitrogenation dephosphorizing can be achieved, and (Zhang Shenghong, Chen Jihua, Liu Zhenhong SBR method handle kenaf fibers retting wastewater environmental pollution and prevent
It controls, 2001,23 (1): 64 ~ 68.).Gao Chunmei etc. handles ramie-degumming waste water using membrane bioreactor, by useless
COD, ammonia nitrogen, suspended matter and coloration carry out detection discovery in water, and it is (high that effluent quality reaches national comprehensive discharge standard
Spring plum, Xi Danli, the research of Yang Xiaobo Membrane Bioreactor for Wastewater Treatment ramie-degumming waste water, Environmental Pollution and Control,
2005,27 (8): 583 ~ 587.).Above-mentioned these can reach the comprehensive row of country to the processing method of ramie-degumming waste water
Standard is put, do not can cause environmental pollution after discharge, but due to degumming waste water COD with higher, so that it is dirty
The higher cost of water process, enterprise is profitless to have to reduce production.It must solve to recycle benefit in waste treatment process simultaneously
With the problem of, enterprise's production cost will be greatly reduced, at the same achieve the purpose that protect environment.
Summary of the invention
To solve the above problems, the present invention provides a kind of method and device that ramie enzyme degumming waste water recycles, energy
It is enough to increase the processing to waste water in each step production link and recycle, to reduce production cost and to save water resource.
Specific scheme is as described in following content.
A kind of ramie enzyme degumming waste liquid circulation of the invention utilizes method, comprising the following steps:
(1) it pre-processes, i.e., peeling processing is carried out to raw ramie, raw ramie is packed into pretreatment unit, be added certainly into pretreatment unit
Water, numb water-bath ratio are 1:8~10, and acid is added into pretreatment unit makes the pH value 1.7~2.0 of solution, certain wait impregnate
What is obtained after the crust of acid attack raw ramie after time in solution carries out binding dress cage without shell fiber crops, while will be in pretreatment unit
Solution is as in waste liquid input waste collecting device, and waste liquid is filtered from collection device by pump input Bag filter device, then
Waste fluid filter filtering is inputted by shut-off valve, in acidity, clear liquid is stored in clear liquid and collects dress filtered clear liquid pH value
In setting, a part of clear liquid is entered pretreatment unit recycling, and a part of clear liquid is input to waste fluid filter and recoils
It washes, another part clear liquid can be used for subsequent step；
(2) fermentation process, what will be obtained by step (1) is put into installation for fermenting without shell fiber crops, is added originally into installation for fermenting
Then degumming enzyme powder is added into installation for fermenting, makes the pH value 7.2~7.9 of enzyme solution, the temperature of enzyme solution is in installation for fermenting for water
50 DEG C~60 DEG C, fermentation fiber crops are obtained after the fermentation of certain time；
(3) boiling-off is bleached, and the fermentation fiber crops obtained by step (2) is put into boiling-off bleaching system, into boiling-off bleaching system
The enzyme solution in step (2) in installation for fermenting is added, at the same be added into boiling-off bleaching system a certain amount of sodium hydroxide, hydrogen peroxide and
Sodium metasilicate, steam is then injected into boiling-off bleaching system makes 0.15~0.2Mpa of steam pressure in boiling-off bleaching system, most
After turn off steam and make boiling-off bleaching system held for some time, obtain boiling-off bleaching fiber crops, the liquid input after boiling-off is bleached is useless
Liquor collecting device, the liquid after the at this moment part clear liquid in step (1) and boiling-off bleaching mix, and then these mixed waste liquors are from receipts
Acquisition means input waste fluid filter filtering, a part of liquid by pump input Bag filter device filtering, then by shut-off valve
It is input to byproduct collection device as by-product, a part of clear liquid is stored in clear liquid collection device, clear liquid collection device
In clear liquid can be used for waste fluid filter and backwashed, can be input to the installation for fermenting in step (2), or for subsequent
In step；
(4) numb processing is copied, the boiling-off bleaching fiber crops obtained by step (3) are put into copy to carry out flogging in numb device and divide fibre, simultaneously
Bath washing and dehydration is carried out with water during copying fiber crops, obtains a point fine clean fiber crops, the water a part copied during fiber crops is for oneself
Water, another part cross cleaner liquid for what step noted earlier obtained, in the waste liquid input waste collecting device after copying fiber crops, obtain
Waste liquid by pump input Bag filter device filtering, continue through shut-off valve input waste fluid filter filtering, it is filtered
Clear liquid is stored in clear liquid collection device, and the clear liquid in clear liquid collection device can be used for waste fluid filter and be backwashed,
It can be input to the numb device of copying in step (4), or in subsequent step；
(5) washing dehydration is handled, and point fine clean fiber crops obtained by step (4) are put into washing stain oil device and are washed
It washs, it is tap water that water a part of washing process, which comes from, and another part crosses cleaner liquid for what step noted earlier obtained, after washing
Waste liquid be first input into anaerobic processing device and carry out closed processes certain time, then be input to aeration treatment apparatus and carry out at sudden and violent oxygen
Certain time to be managed, then inputs waste liquid in waste collecting device, obtained waste liquid inputs the filtering of Bag filter device by pump,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (5)
Continue to wash repeatedly, flaxen fiber after washing is carried out dehydrating again；
(6) stain oil dehydration will carry out at stain oil in washing stain oil device by the flaxen fiber after step (5) washing dehydration
Reason, is added water and a certain amount of oil emulsion modulates oil liquid, controls oil liquid temperature and stain oily time, is dehydrated after the completion of stain oil,
By in the waste liquid input waste collecting device of stain oil dehydration, obtained waste liquid is filtered by pump input Bag filter device,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (6)
Continue to repeat stain oil dehydration；
(7) fiber crops are trembled to dry and be packaged, will carry out trembling fiber crops, and dry and be packaged by step (6) stain dewatered flaxen fiber of oil
At whole treatment processes.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes method, in step (1) into pretreatment unit
The acid of addition is sulfuric acid, and the concentration that the sulfuric acid is 98%, the sulfuric acid being added is every liter 4 grams of water, and the fiber crops water-bath ratio is 1:
8.5, be added sulfuric acid after solution pH value be 1.8, the soaking time of the raw ramie is preferably 2 hours.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes method, adds in step (2) into installation for fermenting
The degumming enzyme powder entered includes cellulase and pectase, and the activity of the enzyme is 50,000~80,000 IU/mg, is added in installation for fermenting
Enzyme powder weight ratio is that every 700 kilograms of raw ramies are added 900 grams of enzyme powder, and the temperature of enzyme solution is preferably 50 DEG C~55 in the installation for fermenting
DEG C, more preferably 55 DEG C, the pH value of the enzyme solution is preferably 7.5, and the fermentation time is preferably 3 hours.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes method, to boiling-off bleaching system in step (3)
Middle 2~4 gram per liters of addition sodium hydroxide, 3~6 gram per liters of hydrogen peroxide, 1~2 every liter of shell of sodium metasilicate, in the boiling-off bleaching system
Steam pressure is preferably 0.15Mpa, and the soaking time of the boiling-off bleaching system is preferably 2 hours.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes method, and the waste liquid in step (5) after washing is first
Being input to the anaerobic processing device progress closed processes preferred time is 12 hours, then is input to aeration treatment apparatus and carries out at sudden and violent oxygen
Managing the preferred time is 8 hours.
A kind of ramie enzyme degumming waste liquid circulation utilizes device, including pretreatment unit, installation for fermenting, boiling-off bleaching dress
It sets, copy numb device, washing stain oil device, anaerobic processing device, aeration treatment apparatus, byproduct collection device and liquid waste processing
Device, wherein the liquid waste treating apparatus includes waste collecting device, pump, Bag filter device, shut-off valve, waste liquid filtering dress
It sets, clear liquid collection device, wherein pretreatment unit connects waste collecting device by pipeline, and installation for fermenting is connected by pipeline
Boiling-off bleaching system, boiling-off bleaching system connect waste collecting device by pipeline, copy numb device by pipeline and connect waste liquid receipts
Acquisition means, washing stain oil device connect anaerobic processing device by pipeline, and anaerobic processing device connects Air Exposure by pipeline
Device, aeration treatment apparatus connect waste collecting device by pipeline, which is characterized in that the waste collecting device passes through pipeline
Connection pump, the pump connect Bag filter device by pipeline, and the Bag filter device connects shut-off valve by pipeline and is followed by
Enter waste fluid filter, the waste fluid filter connects clear liquid collection device or byproduct collection device by pipeline, described
Clear liquid device by pipeline can connect pretreatment unit, installation for fermenting, boiling-off bleaching system, copy numb device, washing stain oil device,
One of anaerobic processing device, aeration treatment apparatus and byproduct collection device are a variety of, settable valve on the pipeline.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes device, in the waste fluid filter setting include
It is microstraining core, active carbon filter core, ultra-filtration element, one or more in nanofiltration filter core, further include check valve, connecting tube, water inlet pipe,
Sewage pipe, which is characterized in that the microstraining core, ultra-filtration element, passes through connecting tube between nanofiltration filter core and connects active carbon filter core
Logical, the water inlet pipe connects microstraining core, and the microstraining core, active carbon filter core, ultra-filtration element can be connected to sewage pipe, described micro-
Filter filter core, active carbon filter core, settable check valve between ultra-filtration element.
Further, a kind of ramie enzyme degumming waste liquid circulation utilizes device, is arranged in the waste fluid filter micro-
Filter filter core is micro-filtration membrane structure, and the aperture of microfiltration membranes is less than or equal to 10 μm, the ultra-filtration element being arranged in the waste fluid filter
For ultrafiltration membrane structure, the aperture of ultrafiltration is less than or equal to 0.05 μm, and the nanofiltration filter core being arranged in the waste fluid filter is nanofiltration
The aperture of membrane structure, nanofiltration membrane is less than or equal to 6 nm.
A kind of ramie enzyme degumming waste liquid circulation of the present invention utilizes method the advantage is that (1) is pre-processed using ramie raw ramie
The acid clear liquid obtained after waste liquid filtering is repeatedly handled after being transmitted back to pretreatment unit tune acid repeatedly, and (2) utilize ramie
The enzyme solution of raw ramie fermentation can be improved the recycling to fermented waste fluid as liquid needed for boiling-off bleaching, and (3) utilize ramie
The pH value that acid solution after raw ramie pretreatment filtration can adjust back waste liquid after boiling-off is bleached obtains corresponding byproduct miscellaneous sugar raw polyol,
(4) waste liquid after boiling-off bleaching can be used in copying numb device by filtering, staticly settled for copying the cleaning waste water after fiber crops,
Obtained clear liquid may continue as beating, cleaning and enzyme solution water etc. and recycles by sudden and violent oxygen and filtering, and (5) are for stain oil mistake
The stain oil waste water generated in journey may be repeated stain oil processing after staticly settling and filtering.A kind of ramie enzyme of the present invention
Change degumming waste liquid circulation and utilizes method, it is higher in the chemical oxygen demand of waste water that ramie enzyme degumming generates, and in the prior art,
This more overbasic waste liquid is not made full use of, is just discharged into environment after being only diluted processing and be easy to cause pollution,
It is separated by solid-liquid separation after the method for the present invention is by readjustment pH value PH6.8~7.2 with pump, cloth envelop collector and membrane separation device
Byproduct is obtained, so that boiled-off waste water is utilized, the processing for carrying out great number to it is no longer needed to, to reduce production cost.
Method provided by the invention is simple, easy to operate, and will be obtained according to the type difference for generating waste water during China grass degumming again
Waste water handle respectively, save water resource conducive to large-scale industrial production.
A kind of ramie enzyme degumming waste liquid circulation provided by the invention utilize device, by ramie enzyme scouring processes into
The circulating processing of row, the critical process for generating waste liquid are gradually filtered, and by filtrate reciprocation cycle using handling, greatly
The waste of degree reduced to water, can not only save production cost in industrial processes, while also can be reduced pollution
Discharge protects environment.
Detailed description of the invention
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing, in which:
Fig. 1 is a kind of process flow chart of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 2 is a kind of structural schematic diagram of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 3 is a kind of working principle diagram of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 4 is a kind of filter apparatus configuration schematic diagram of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 5 is a kind of filter device filter process schematic diagram of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 6 is a kind of filter device backwashing process schematic of ramie enzyme degumming liquid waste processing of the present invention；
Fig. 7 is a kind of filter device schematic perspective view of ramie enzyme degumming liquid waste processing of the present invention；
It is marked shown in the figures above are as follows: numb device, 5 washings are copied in 1 pretreatment unit, 2 installation for fermentings, 3 boiling-off bleaching systems, 4
Stain oil device, 51 anaerobic processing devices, 52 aeration treatment apparatus, 53 byproduct collection devices, 6 liquid waste treating apparatus, 61 waste liquids
Collection device, 62 pumps, 63 Bag filter devices, 64 shut-off valves, 65 waste fluid filters, 66 clear liquid collection devices, 11 tap water,
12 clear liquids, 651 microstraining cores, 652 active carbon filter cores, 653 ultra-filtration elements, 654 nanofiltration filter cores, 655 check valves, 656 connecting tubes,
657 water inlet pipes, 658 sewage pipes, 659 water pumps.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
As shown in Figure 1, a kind of ramie enzyme degumming waste liquid circulation utilizes method, comprising the following steps:
(1) it pre-processes, i.e., peeling processing is carried out to raw ramie, raw ramie is packed into pretreatment unit, be added certainly into pretreatment unit
Water, numb water-bath ratio are 1:8~10, and acid is added into pretreatment unit makes the pH value 1.7~2.0 of solution, certain wait impregnate
What is obtained after the crust of acid attack raw ramie after time in solution carries out binding dress cage without shell fiber crops, while will be in pretreatment unit
Solution is as in waste liquid input waste collecting device, and waste liquid is filtered from collection device by pump input Bag filter device, then
Waste fluid filter filtering is inputted by shut-off valve, in acidity, clear liquid is stored in clear liquid and collects dress filtered clear liquid pH value
In setting, a part of clear liquid is entered pretreatment unit recycling, and a part of clear liquid is input to waste fluid filter and recoils
It washes, another part clear liquid can be used for subsequent step；
(2) fermentation process, what will be obtained by step (1) is put into installation for fermenting without shell fiber crops, is added originally into installation for fermenting
Then degumming enzyme powder is added into installation for fermenting, makes the pH value 7.2~7.9 of enzyme solution, the temperature of enzyme solution is in installation for fermenting for water
50 DEG C~60 DEG C, fermentation fiber crops are obtained after the fermentation of certain time；
(3) boiling-off is bleached, and the fermentation fiber crops obtained by step (2) is put into boiling-off bleaching system, into boiling-off bleaching system
The enzyme solution in step (2) in installation for fermenting is added, at the same be added into boiling-off bleaching system a certain amount of sodium hydroxide, hydrogen peroxide and
Sodium metasilicate, steam is then injected into boiling-off bleaching system makes 0.15~0.2Mpa of steam pressure in boiling-off bleaching system, most
After turn off steam and make boiling-off bleaching system held for some time, obtain boiling-off bleaching fiber crops, the liquid input after boiling-off is bleached is useless
Liquor collecting device, the liquid after the at this moment part clear liquid in step (1) and boiling-off bleaching mix, and then these mixed waste liquors are from receipts
Acquisition means input waste fluid filter filtering, a part of liquid by pump input Bag filter device filtering, then by shut-off valve
It is input to byproduct collection device as by-product, a part of clear liquid is stored in clear liquid collection device, clear liquid collection device
In clear liquid can be used for waste fluid filter and backwashed, can be input to the installation for fermenting in step (2), or for subsequent
In step；
(4) numb processing is copied, the boiling-off bleaching fiber crops obtained by step (3) are put into copy to carry out flogging in numb device and divide fibre, simultaneously
Bath washing and dehydration is carried out with water during copying fiber crops, obtains a point fine clean fiber crops, the water a part copied during fiber crops is for oneself
Water, another part cross cleaner liquid for what step noted earlier obtained, in the waste liquid input waste collecting device after copying fiber crops, obtain
Waste liquid by pump input Bag filter device filtering, continue through shut-off valve input waste fluid filter filtering, it is filtered
Clear liquid is stored in clear liquid collection device, and the clear liquid in clear liquid collection device can be used for waste fluid filter and be backwashed,
It can be input to the numb device of copying in step (4), or in subsequent step；
(5) washing dehydration is handled, and point fine clean fiber crops obtained by step (4) are put into washing stain oil device and are washed
It washs, it is tap water that water a part of washing process, which comes from, and another part crosses cleaner liquid for what step noted earlier obtained, after washing
Waste liquid be first input into anaerobic processing device and carry out closed processes certain time, then be input to aeration treatment apparatus and carry out at sudden and violent oxygen
Certain time to be managed, then inputs waste liquid in waste collecting device, obtained waste liquid inputs the filtering of Bag filter device by pump,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (5)
Continue to wash repeatedly, flaxen fiber after washing is carried out dehydrating again；
(6) stain oil dehydration will carry out at stain oil in washing stain oil device by the flaxen fiber after step (5) washing dehydration
Reason, is added water and a certain amount of oil emulsion modulates oil liquid, controls oil liquid temperature and stain oily time, is dehydrated after the completion of stain oil,
By in the waste liquid input waste collecting device of stain oil dehydration, obtained waste liquid is filtered by pump input Bag filter device,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (6)
Continue to repeat stain oil dehydration；
(7) fiber crops are trembled to dry and be packaged, will carry out trembling fiber crops, and dry and be packaged by step (6) stain dewatered flaxen fiber of oil
At whole treatment processes.
As shown in Fig. 2, a kind of ramie enzyme degumming waste liquid circulation utilizes device, including pretreatment unit (1), installation for fermenting
(2), boiling-off bleaching system (3), copy numb device (4), washing stain oil device (5), anaerobic processing device (51), aeration treatment apparatus
(52), byproduct collection device (53) and liquid waste treating apparatus (6), wherein the liquid waste treating apparatus includes waste collection dress
(61), pump (62), Bag filter device (63), shut-off valve (64), waste fluid filter (65), clear liquid collection device (66) are set,
Wherein, pretreatment unit (1) connects waste collecting device (61) by pipeline, and installation for fermenting (2) connects boiling-off by pipeline and floats
White device (3), boiling-off bleaching system (3) connect waste collecting device (61) by pipeline, copy numb device (4) and are connected by pipeline
Waste collecting device (64), washing stain oil device (5) connect anaerobic processing device (51) by pipeline, anaerobic processing device (51)
Aeration treatment apparatus (52) are connected by pipeline, aeration treatment apparatus (52) connects waste collecting device (61) by pipeline,
It is characterized in that, the waste collecting device (61) connects pump (62) by pipeline, and the pump (62) connects cloth bag mistake by pipeline
It filters device (63), the Bag filter device (63) accesses waste fluid filter (65) afterwards by pipeline connection shut-off valve (64),
The waste fluid filter (65) passes through pipeline connection clear liquid collection device (66) or byproduct collection device (53), the clear liquid
Collection device (66) can connect pretreatment unit (1), installation for fermenting (2), boiling-off bleaching system (3), copy numb device by pipeline
(4), in washing stain oil device (5), anaerobic processing device (51), aeration treatment apparatus (52) and byproduct collection device (53)
It is one or more, settable valve on the pipeline.As shown in Figure 3,4, setting includes that micro-filtration is filtered in waste fluid filter (65)
It is core (651), active carbon filter core (652), ultra-filtration element (653), one or more in nanofiltration filter core (654), it further include check valve
(655), connecting tube (656), water inlet pipe (657), sewage pipe (658), which is characterized in that the microstraining core (651), active carbon
Filter core (652), ultra-filtration element (653) are connected to by connecting tube (656) between nanofiltration filter core (654), the water inlet pipe (657)
It connects microstraining core (651), the microstraining core (651), active carbon filter core (652), ultra-filtration element (653) can be connected to sewage pipe
(658), the microstraining core (651), active carbon filter core (652), settable check valve (655) between ultra-filtration element (653).Such as
Shown in Fig. 4, water pump (659) setting is equipped with check valve (655) in water inlet pipe (657), water inlet pipe (657), water inlet pipe (657) connection
Microstraining core (651) hollow part, connecting tube (656) one end connect the other end outside microstraining core and connect active carbon filter core
(652) hollow part, connecting tube (656) one end connect the other end outside active carbon filter core and connect ultra-filtration element (652) hollow portion
Position, connecting tube (656) one end connect the other end outside ultra-filtration element and connect nanofiltration filter core (652) hollow part, the micro-filtration filter
Core (651), active carbon filter core (652), ultra-filtration element (653) hollow part be all connected to sewage pipe, the nanofiltration filter core
(654) external connection water inlet pipe (657)；List is connected between the microstraining core (651) and active carbon filter core (652) outside
The connection of check valve (655) is equipped with to the connecting tube of valve (655), active carbon filter core (652) and ultra-filtration element (653) external connection
Pipe, ultra-filtration element (653) and nanofiltration filter core (654) external connection are equipped with the connecting tube of check valve (655)；The waste liquid filtering dress
The microstraining core centered is micro-filtration membrane structure, and the aperture of microfiltration membranes is less than or equal to 10 μm, sets in the waste fluid filter
The ultra-filtration element set is ultrafiltration membrane structure, and the aperture of ultrafiltration is less than or equal to 0.05 μm, and what is be arranged in the waste fluid filter receives
Filter filter core is nanofiltration membrane structure, and the aperture of nanofiltration membrane is less than or equal to 6 nm.Multistage filtering flow chart as shown in Figure 5, can see
Out, waste water can be by one or more completions filtering of microstraining core, active carbon filter core, ultra-filtration element and nanofiltration filter core.Such as Fig. 6
Shown in counter-flushing process figure, filtrate can by the water inlet of nanofiltration filter core through check valve from the outside of ultra-filtration element to hollow portion
It can be after check valve be rinsed from the outside of active carbon filter core to hollow portion by waste residue from sewage pipe discharge, filtrate by waste residue after flushing
Waste residue can be discharged from sewage pipe after check valve is rinsed from the outside of microstraining core to hollow portion from sewage pipe discharge, filtrate,
To realize the automatic backwash blowdown of multi-stage filter.Waste fluid filter as shown in Figure 7, the microstraining core (651) are lived
Property filtration core (652), ultra-filtration element (653), nanofiltration filter core (654) can side by side or vertical arrangement is to save the size reduction of device
Space occupied.
Embodiment
A kind of ramie enzyme degumming waste liquid circulation utilizes method, comprising the following steps:
(1) it pre-processes, i.e., peeling processing is carried out to raw ramie, raw ramie is packed into pretreatment unit, is added into pretreatment unit
Acid is sulfuric acid, and the concentration that the sulfuric acid is 98%, the sulfuric acid being added is every liter 4 grams of water, and the fiber crops water-bath ratio is 1:8.5, is added
The pH value for entering solution after sulfuric acid is 1.8, and the soaking time of the raw ramie is preferably 2 hours.Acid attack after impregnating in solution
What is obtained after the crust of raw ramie carries out binding dress cage without shell fiber crops, while inputting waste liquid for the solution in pretreatment unit as waste liquid
In collection device, waste liquid, by pump input Bag filter device filtering, then inputs waste liquid mistake by shut-off valve from collection device
Device filtering is filtered, filter core used by waste fluid filter is only microstraining core, and filtered clear liquid pH value is in acidity, clear liquid quilt
It stores in clear liquid collection device, a part of clear liquid is entered pretreatment unit recycling, and a part of clear liquid is input to waste liquid
Filter device backwashes microstraining core by check valve, and the waste residue of backwash is transmitted back to waste collecting device, another portion
Distinguishing liquid can be used for subsequent step, through pump, Bag filter device, waste liquid after waste liquid is stood by waste collecting device in treatment process
Filter device obtains filtering water, and preposition Bag filter device filters solid impurity, and waste liquid filters out high molecular weight etc. through filter membrane
Particle-liquid exports to high molecular weight separation of solid and liquid, removes solid impurity, small molecule and the water containing acid on the weak side are led by membrane aperture
Enter to clear liquid collection device and continue to use, worker only need to make liquid acid concentration by the technology standard of this process to water acid adding
Achieving the purpose that can be except a pair shell；
(2) fermentation process, what will be obtained by step (1) is put into installation for fermenting without shell fiber crops, is added originally into installation for fermenting
Then degumming enzyme powder is added in water into installation for fermenting, the degumming enzyme powder includes cellulase and pectase, the activity of the enzyme
For 50,000~80,000 IU/mg, the enzyme powder weight ratio added in installation for fermenting is that every 700 kilograms of raw ramies are added 900 grams of enzyme powder, the hair
The temperature 50 C of enzyme solution in ferment device, the pH value of the enzyme solution are 7.5, and the fermentation time is 3 hours, are fermented after fermentation
Fiber crops；
(3) boiling-off is bleached, and the fermentation fiber crops obtained by step (2) is put into boiling-off bleaching system, into boiling-off bleaching system
The enzyme solution in step (2) in installation for fermenting is added, 2~4 gram per liters of sodium hydroxide, dioxygen are then added into boiling-off bleaching system
3~6 gram per liters of water, 1~2 every liter of shell of sodium metasilicate, steam is then injected into boiling-off bleaching system makes to steam in boiling-off bleaching system
Steam pressure is 0.15Mpa, and finally turning off steam makes boiling-off bleaching system keep the temperature 2 hours, obtains boiling-off bleaching fiber crops, boiling-off is bleached
Liquid afterwards inputs waste collecting device, after at this moment the part clear liquid of the waste collecting device in step (1) and boiling-off are bleached
Liquid mixing, then these mixed waste liquors are filtered from waste collecting device by pump input Bag filter device, then pass through cut-off
Valve inputs waste fluid filter filtering, and filter core used by waste fluid filter is microstraining core and ultra-filtration element, and a part is clear
Liquid is stored in clear liquid collection device, and the installation for fermenting that can be input in step (2) is recycled, or is used for subsequent step
In, the clear liquid in clear liquid collection device can be used for waste fluid filter and be backwashed, and the waste residue of backwash is defeated as by-product
Enter to byproduct collection device, the by-product is mainly miscellaneous sugar alcohol；
(4) numb processing is copied, the boiling-off bleaching fiber crops obtained by step (3) are put into copy to carry out flogging in numb device and divide fibre, simultaneously
Bath washing and dehydration is carried out with water during copying fiber crops, obtains a point fine clean fiber crops, the water a part copied during fiber crops is for oneself
Water, another part cross cleaner liquid for what step noted earlier obtained, in the waste liquid input waste collecting device after copying fiber crops, obtain
Waste liquid by pump input Bag filter device filtering, continue through shut-off valve input waste fluid filter filtering, waste liquid filtering
Device uses microstraining core, active carbon filter core and ultra-filtration element multistage filtering, and filtered clear liquid is stored in clear liquid and collects dress
In setting, the clear liquid in clear liquid collection device can be used for waste fluid filter and be backwashed, and can be input to copying in step (4)
Numb device, or in subsequent step；
(5) washing dehydration is handled, and point fine clean fiber crops obtained by step (4) are put into washing stain oil device and are washed
It washs, it is tap water that water a part of washing process, which comes from, and another part crosses cleaner liquid for what step noted earlier obtained, after washing
Waste liquid be first input into anaerobic processing device carry out the closed processes preferred time be 12 hours, then be input to aeration treatment apparatus into
The row sudden and violent oxygen processing preferred time is 8 hours, is then inputted waste liquid in waste collecting device, obtained waste liquid inputs cloth by pump
Bag filter device filtering, continues through shut-off valve input waste fluid filter filtering, and waste fluid filter uses microstraining core, work
Property filtration core, ultra-filtration element and nanofiltration filter core multistage filtering, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (5)
Continue to wash repeatedly, flaxen fiber after washing is carried out dehydrating again；
(6) stain oil dehydration will carry out at stain oil in washing stain oil device by the flaxen fiber after step (5) washing dehydration
Reason, after obtaining point fine clean fiber crops, to having divided fine degumming fiber crops to be prevented between fiber and fiber after the drying, adhesion uses cream again
Every fiber is isolated in carburetion, is impregnated using oil emulsion (W/O) heating and has divided fine degumming fiber crops stain oil, and oil liquid bath raio presses numb water
1:8-10 bath raio discharges water, and aqueous PH is modulated to 7.5-8.0, and 55 DEG C ~ 65 DEG C of temperature, 3-5 grams of the agent/L that drains the oil is modulated into emulsion,
It is dehydrated after being impregnated 30 minutes in washing stain oil device, obtains stain oil sodium, the waste liquid input waste collection dress of stain oil dehydration
In setting, obtained waste liquid continues through shut-off valve input waste fluid filter filtering by pump input Bag filter device filtering,
Waste fluid filter is filtered using microstraining core, and filtered clear liquid is stored in clear liquid collection device, clear liquid collection device
In clear liquid can be used for waste fluid filter and backwashed, can be input to the washing stain oil device in step (6) and continue weight
Multiple stain oil dehydration, worker need to only refuel by technology standard and emulsify, and the oil concentration of emulsion is made to reach technological standards i.e.
It can；
(7) fiber crops are trembled to dry and be packaged, will carry out trembling fiber crops, and dry and be packaged by step (6) stain dewatered flaxen fiber of oil
At whole treatment processes.
Pretreatment unit described in the present embodiment, installation for fermenting, boiling-off bleaching system, copy numb device, washing stain oil device,
304 stainless steels all can be used in anaerobic processing device, aeration treatment apparatus, byproduct collection device and liquid waste treating apparatus
Make.
A kind of ramie enzyme degumming waste liquid circulation of the present invention utilizes method the advantage is that (1) is pre-processed using ramie raw ramie
The acid clear liquid obtained after waste liquid filtering is repeatedly handled after being transmitted back to pretreatment unit tune acid repeatedly, and (2) utilize ramie
The enzyme solution of raw ramie fermentation can be improved the recycling to fermented waste fluid as liquid needed for boiling-off bleaching, and (3) utilize ramie
The pH value that acid solution after raw ramie pretreatment filtration can adjust back waste liquid after boiling-off is bleached obtains corresponding byproduct miscellaneous sugar alcohol, and (4) are boiled
Waste liquid after scouring and bleaching is white can be used in copying numb device by filtering, be staticly settled for copying the cleaning waste water after fiber crops, sudden and violent oxygen
And filtering, obtained clear liquid be may continue as into beating, cleaning and enzyme solution water etc. and recycled, during (5) are for stain oil
The stain oil waste water of generation may be repeated stain oil processing after staticly settling and filtering.A kind of ramie enzymeization of the present invention is de-
Glue waste liquid circulation utilizes method, higher in the chemical oxygen demand of waste water that ramie enzyme degumming generates, and in the prior art, to this
Kind more overbasic waste liquid does not make full use of, and is only diluted after processing to be just discharged into environment and be easy to cause pollution,
Inventive method with pump, cloth envelop collector and membrane separation device behind readjustment pH value PH6.8~7.2 by being separated by solid-liquid separation to obtain
Byproduct no longer needs to the processing that great number is carried out to it, to reduce production cost so that boiled-off waste water is utilized.This hair
The method of bright offer is simple, easy to operate, and is to be given up according to the type difference for generating waste water during China grass degumming by what is obtained again
Moisture other places reason saves water resource conducive to large-scale industrial production.
It should be noted that fabric hand is thick since the cured matter of rouge therein after raw ramie degumming has been removed in the present embodiment
Firmly, pliability is low, and drying makes fiber easily be bonded together again, by that can improve the physical property of fiber to its stain oil, mentions
High spinnability, the present invention do not have special limitation to the method for the oil supply, de- using raw ramie well known to those skilled in the art
The technical solution of oil supply after glue.Present invention preferably employs the modes of high temperature oil supply, to the numb stain oil after cleaning and dewatering.It completes
After the stain oil of fiber crops, the fiber crops after stain oil are dehydrated and are dried by the present invention, obtain degummed ramie.The present invention to dehydration and drying
Method does not have special limitation, using the technical solution well known to those skilled in the art for being dehydrated and drying to fiber crops.It obtains
After degummed ramie, the degummed ramie is successively carried out mechanical softening by the present invention, dewing is refueled, is divided pound heap storage, fibrillation, cutting and is divided
Grade, obtains ramie stripes fiber.The present invention does not have special limitation to the various processing methods after the degummed ramie, using this field
Method known to technical staff.Without departing from the principles of the invention, several improvements and modifications can also be made, these
Improvements and modifications should also regard the above is only a preferred embodiment of the present invention, it is noted that for the general of the art
For logical technical staff, various improvements and modifications may be made without departing from the principle of the present invention, these improve and
Retouching also should be regarded as protection scope of the present invention.
According to the announcement and introduction of above-described specific embodiment, to the purpose of the present invention, technical solution and beneficial
Effect has carried out further detailed description, it should be understood that described above is a specific embodiment of the invention, and
It is not intended to limit the scope of the invention, all within the spirits and principles of the present invention, any modification made equally is replaced
It changes, improve etc., it is included within the scope of protection of the present invention.In addition, although being used some specific terms in this specification,
These terms are merely for convenience of description, does not limit the present invention in any way.
Claims (9)
1. a kind of ramie enzyme degumming waste liquid circulation utilizes method, comprising the following steps:
(1) it pre-processes, i.e., peeling processing is carried out to raw ramie, raw ramie is packed into pretreatment unit, be added certainly into pretreatment unit
Water, numb water-bath ratio are 1:8~10, and acid is added into pretreatment unit makes the pH value 1.7~2.0 of solution, certain wait impregnate
What is obtained after the crust of acid attack raw ramie after time in solution carries out binding dress cage without shell fiber crops, while will be in pretreatment unit
Solution is as in waste liquid input waste collecting device, and waste liquid is filtered from collection device by pump input Bag filter device, then
Waste fluid filter filtering is inputted by shut-off valve, in acidity, clear liquid is stored in clear liquid and collects dress filtered clear liquid pH value
In setting, a part of clear liquid is entered pretreatment unit recycling, and a part of clear liquid is input to waste fluid filter and recoils
It washes, another part clear liquid can be used for subsequent step；
(2) fermentation process, what will be obtained by step (1) is put into installation for fermenting without shell fiber crops, is added originally into installation for fermenting
Then degumming enzyme powder is added into installation for fermenting, makes the pH value 7.2~7.9 of enzyme solution, the temperature of enzyme solution is in installation for fermenting for water
50 DEG C~60 DEG C, fermentation fiber crops are obtained after the fermentation of certain time；
(3) boiling-off is bleached, and the fermentation fiber crops obtained by step (2) is put into boiling-off bleaching system, into boiling-off bleaching system
The enzyme solution in step (2) in installation for fermenting is added, at the same be added into boiling-off bleaching system a certain amount of sodium hydroxide, hydrogen peroxide and
Sodium metasilicate, steam is then injected into boiling-off bleaching system makes 0.15~0.2Mpa of steam pressure in boiling-off bleaching system, most
After turn off steam and make boiling-off bleaching system held for some time, obtain boiling-off bleaching fiber crops, the liquid input after boiling-off is bleached is useless
Liquor collecting device, the liquid after the at this moment part clear liquid in step (1) and boiling-off bleaching mix, and then these mixed waste liquors are from receipts
Acquisition means input waste fluid filter filtering, a part of liquid by pump input Bag filter device filtering, then by shut-off valve
It is input to byproduct collection device as by-product, a part of clear liquid is stored in clear liquid collection device, clear liquid collection device
In clear liquid can be used for waste fluid filter and backwashed, can be input to the installation for fermenting in step (2), or for subsequent
In step；
(4) numb processing is copied, the boiling-off bleaching fiber crops obtained by step (3) are put into copy to carry out flogging in numb device and divide fibre, simultaneously
Bath washing and dehydration is carried out with water during copying fiber crops, obtains a point fine clean fiber crops, the water a part copied during fiber crops is for oneself
Water, another part cross cleaner liquid for what step noted earlier obtained, in the waste liquid input waste collecting device after copying fiber crops, obtain
Waste liquid by pump input Bag filter device filtering, continue through shut-off valve input waste fluid filter filtering, it is filtered
Clear liquid is stored in clear liquid collection device, and the clear liquid in clear liquid collection device can be used for waste fluid filter and be backwashed,
It can be input to the numb device of copying in step (4), or in subsequent step；
(5) washing dehydration is handled, and point fine clean fiber crops obtained by step (4) are put into washing stain oil device and are washed
It washs, it is tap water that water a part of washing process, which comes from, and another part crosses cleaner liquid for what step noted earlier obtained, after washing
Waste liquid be first input into anaerobic processing device and carry out closed processes certain time, then be input to aeration treatment apparatus and carry out at sudden and violent oxygen
Certain time to be managed, then inputs waste liquid in waste collecting device, obtained waste liquid inputs the filtering of Bag filter device by pump,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (5)
Continue to wash repeatedly, flaxen fiber after washing is carried out dehydrating again；
(6) stain oil dehydration will carry out at stain oil in washing stain oil device by the flaxen fiber after step (5) washing dehydration
Reason, is added water and a certain amount of oil emulsion modulates oil liquid, controls oil liquid temperature and stain oily time, is dehydrated after the completion of stain oil,
By in the waste liquid input waste collecting device of stain oil dehydration, obtained waste liquid is filtered by pump input Bag filter device,
Shut-off valve input waste fluid filter filtering is continued through, filtered clear liquid is stored in clear liquid collection device, and clear liquid is received
Clear liquid in acquisition means can be used for waste fluid filter and be backwashed, and can be input to the washing stain oil device in step (6)
Continue to repeat stain oil dehydration；
(7) fiber crops are trembled to dry and be packaged, will carry out trembling fiber crops, and dry and be packaged by step (6) stain dewatered flaxen fiber of oil
At whole treatment processes.
2. a kind of ramie enzyme degumming waste liquid circulation according to claim 1 utilizes method, it is characterised in that: the step
(1) acid being added in into pretreatment unit is sulfuric acid, and the concentration that the sulfuric acid is 98%, the sulfuric acid being added is every liter of water 4
Gram, the fiber crops water-bath ratio is 1:8.5, and the pH value of solution is 1.8 after addition sulfuric acid, and the soaking time of the raw ramie is preferably 2 small
When.
3. a kind of ramie enzyme degumming waste liquid circulation according to claim 1 utilizes method, it is characterised in that: the step
(2) the degumming enzyme powder being added in into installation for fermenting includes cellulase and pectase, and the activity of the enzyme is 50,000~80,000 IU/
Mg, the enzyme powder weight ratio added in installation for fermenting are that every 700 kilograms of raw ramies are added 900 grams of enzyme powder, enzyme solution in the installation for fermenting
Temperature be preferably 50 DEG C~55 DEG C, more preferably 55 DEG C, the pH value of the enzyme solution is preferably 7.5, and the fermentation time is preferred
It is 3 hours.
4. a kind of ramie enzyme degumming waste liquid circulation according to claim 1 utilizes method, it is characterised in that: the step
(3) it is every that 2~4 gram per liters of sodium hydroxide, 3~6 gram per liters of hydrogen peroxide, 1~2 shell of sodium metasilicate is added in into boiling-off bleaching system
It rises, steam pressure is preferably 0.15Mpa in the boiling-off bleaching system, and the soaking time of the boiling-off bleaching system is preferably 2
Hour.
5. a kind of ramie enzyme degumming waste liquid circulation according to claim 1 utilizes method, it is characterised in that: the step
(5) it is 12 hours that the waste liquid in after washing, which is first input into anaerobic processing device and carries out the closed processes preferred time, then is input to exposure
The Flash Gas Compression Skid System progress sudden and violent oxygen processing preferred time is 8 hours.
6. a kind of ramie enzyme degumming waste liquid circulation utilize device, including pretreatment unit, installation for fermenting, boiling-off bleaching system,
Copy numb device, washing stain oil device, anaerobic processing device, aeration treatment apparatus, byproduct collection device and liquid waste processing dress
Set, wherein the liquid waste treating apparatus include waste collecting device, pump, Bag filter device, shut-off valve, waste fluid filter,
Clear liquid collection device, wherein pretreatment unit connects waste collecting device by pipeline, and installation for fermenting connects boiling-off by pipeline
Bleaching system, boiling-off bleaching system connect waste collecting device by pipeline, copy numb device by pipeline and connect waste collection dress
It sets, washing stain oil device connects anaerobic processing device by pipeline, and anaerobic processing device connects aeration treatment apparatus by pipeline,
Aeration treatment apparatus connects waste collecting device by pipeline, which is characterized in that the waste collecting device is connected by pipeline
Pump, the pump connect Bag filter device by pipeline, and access is useless after the Bag filter device connects shut-off valve by pipeline
Liquid filter device, the waste fluid filter connect clear liquid collection device or byproduct collection device, the clear liquid by pipeline
Device can connect pretreatment unit by pipeline, installation for fermenting, boiling-off bleaching system, copy numb device, washing stain oil device, anaerobism
One of processing unit, aeration treatment apparatus and byproduct collection device are a variety of, settable valve on the pipeline.
7. a kind of ramie enzyme degumming waste liquid circulation according to claim 6 utilizes device, it is characterised in that: the waste liquid
Setting further includes list including one or more in microstraining core, active carbon filter core, ultra-filtration element, nanofiltration filter core in filter device
To valve, connecting tube, water inlet pipe, sewage pipe, which is characterized in that the microstraining core, active carbon filter core, ultra-filtration element, nanofiltration filter
It is connected between core by connecting tube, the water inlet pipe connects microstraining core, the microstraining core, active carbon filter core, ultra-filtration element
Sewage pipe can be connected to, the microstraining core, active carbon filter core, settable check valve between ultra-filtration element.
8. a kind of ramie enzyme degumming waste liquid circulation according to claim 7 utilizes device, it is characterised in that: the waste liquid
The microstraining core being arranged in filter device is micro-filtration membrane structure, and the aperture of microfiltration membranes is less than or equal to 10 μm, the waste liquid filtering dress
The ultra-filtration element centered is ultrafiltration membrane structure, and the aperture of ultrafiltration is less than or equal to 0.05 μm, sets in the waste fluid filter
The nanofiltration filter core set is nanofiltration membrane structure, and the aperture of nanofiltration membrane is less than or equal to 6 nm.
9. a kind of ramie enzyme degumming waste liquid circulation according to claim 7 utilizes device, it is characterised in that: the micro-filtration
Filter core, active carbon filter core, ultra-filtration element, nanofiltration filter core can arranged side by side or vertical arrangements.
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