CN106745878A - The recovery method of sericin in filature industrial wastewater - Google Patents
The recovery method of sericin in filature industrial wastewater Download PDFInfo
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
- C07K14/43563—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects
- C07K14/43586—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates from insects from silkworms
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- 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
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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Abstract
The invention discloses a kind of recovery method of sericin in filature industrial wastewater, specifically by filature industrial wastewater through obtaining sericin collection liquid including the operation including filtering and impurity removing, resin adsorption, wash-out, collection；Resin employed in wherein described resin adsorption operation is the ion exchange resin of DEAE 52.The inventive method process is simple, equipment investment are few, and selected resin is repeatable to be utilized, and easily realizes that continuous processing is produced, and is adapted to industrialization promotion；The sericin purity for obtaining is returned to invention this method higher, and be not introduced into harmful substance, can be used for food and other industry.The inventive method can not only solve the discharge pressure of reeling enterprises waste water, moreover it is possible to realize making full use of for accessory substance.
Description
Technical field
The present invention relates to filature field of industrial production, more particularly to sericin in a kind of filature industrial wastewater
Recovery method.
Background technology
Silk is a kind of fibrous protein, is mainly made up of sericin and fibroin albumen；Sericin is wrapped in fibroin
The outer layer of albumen, plays bonding protective effect.Silk is dissociated next process referred to as filature from cocoon layer.What filature was generally used
Technique is that silk cocoon is immersed in thermokalite water or hot water to cook, and silk gum is dissolved in hot water, then pulls out raw silk to come and wind
Collect.Sericin content nearly 30% in silk, therefore, the waste water produced in silk reeling process is rich in substantial amounts of sericin.Inspection
Survey analysis to find, the concentration of protein is between 0.4~3.8mg/mL in the silk reeling wastewater of industry.
Sericin is a class water-solubility protein, the whole essential amino acids containing 18 kinds of amino acid and needed by human body.Grind
Study carefully and show, sericin or sericin peptide taken can improve man memory power, prevent brain aging, prevention dementia.Additionally, sericin
With very good physicochemical property, such as inoxidizability, uvioresistant, moisture retention, antibiotic property may apply to medicine, change
In the every field such as cosmetic, biomaterial, weaving, food.Accordingly, as a kind of valuable protein resource, conventional silk gum
The mode of production directly discharged with silk reeling wastewater not only polluted-water, improves the COD value and BOD values of waste water, increase sewage disposal
Cost and difficulty, and cause the waste of protein resource.Through retrieval, analysis, it is found to be the environmental pollution of solution silk reeling wastewater, subtracts
Little sericin protein resource is wasted, and correlative study is mainly using following several schemes：
(1) acid-precipitation method：It is that HCl or dilute H are added in sericine waste water2SO4, make pH be 3.8~4.5, in isoelectric point
Under the conditions of make sericine solubility decline and gradually sedimentation separation.Because wastewater volume is big, taken using the method treatment,
And a large amount of settling tanks are needed, the rate of recovery is not (being usually no more than 50%) but high, and the silk gum that recovery is obtained contains more impurity.
(2) chemical coagulation process：A large amount of dense or saturation saline solutions are typically used, it is complete in water using strong electrolyte
Portion is ionized into ion to capture the characteristic of the hydrone being combined with protein, so that the hydrated sheath destroyed around protein, makes
There is cohesion and precipitate in protein.This method process is simple, but have the disadvantage that：Because of the flocculant mostly molysite that uses or
Aluminium salt, so be able to need to be applied to require stricter neck containing some metal ions, such as product in the silk gum for obtaining is reclaimed
Must be by purification process when in domain such as food, medical science.Have again：Entitled " intermediate processing of sericin in a kind of silk reeling wastewater "
Chinese patent application (Application No. 201310073594.4) disclose appropriate anhydrous lemon sequentially added in silk reeling wastewater
Lemon acid C6H8O7With disodium hydrogen phosphate Na2HPO4, and stirred by agitator, add appropriate tannic acid C76H52O46, then lead to
Cross heating and stand, so as to the sericin in silk reeling wastewater be precipitated out；Although the method can obtain sericin,
It is that with the addition of many chemical reagent, process is also more complicated.And：In entitled " processing method of waste water containing sericin protein "
There is complexation reaction using silk gum itself and metal and synthesize silk gum egg in state's patent application (Application No. 200710093091.8)
White metal complex compound, using this complex compound as the silk gum in flocculant coagulative precipitation silk mill wastewater, so as to be carried out effectively to waste water
Treatment, sericin is reclaimed finally by the method for weak acid scrubbing, and its concrete technology is：First added in waste water containing sericin protein
Sericin metal complex, sediment is extracted after 6~10h of vibration, and watery hydrochloric acid or dilute is then added in the sediment for obtaining
Sulfuric acid scrubbing, the drying precipitate after 1~12h of magnetic agitation obtained by centrifugation is sericin powder；Although the method can be obtained
To sericin, but because sericin complex compound preparation process introduces metal ion, the silk gum for reclaiming and obtaining is limited
The application of albumen, needs to be further purified if being used in medical science, food, and the sericin metal complex that the method is used
Preparation process it is also more complicated.
(3) organic solvent precipitation method：Be destroyed using the water imbibition of alcohol or acetone protein micelle hydrated sheath and
Make protein precipitation, but the method is not suitable for the big waste liquid of low concentration, treating capacity, is only suitable for by the silk gum after concentration from solution
Middle precipitation, and protein mutability in organic solvent.The security and cost of the method also limit its application.
(4) ultrafiltration：It is that the sericin in waste water is separated using the aperture of film, that is, uses a kind of sericin
Can not pass through and filter membrane that other materials can be passed through so as to reach the effect of separation.Although the method purification effect is good, by
Easily polluted in filter membrane, it is necessary to periodically be cleaned accordingly to filter membrane, this filature industry big for wastewater treatment capacity undoubtedly can
Production cost is significantly greatly increased.
In summary, although the method that sericin is reclaimed from silk reeling wastewater has a lot, but due to egg in silk reeling wastewater
White matter content is low and silk reeling wastewater treating capacity is big, and distinct methods have its limitation.Therefore, in the urgent need to a kind of low cost, effect
Well, the new method of silk reeling wastewater can be on a large scale processed to solve the problems, such as the recovery of sericin in silk reeling wastewater.
The content of the invention
In order to overcome above-mentioned existing methods not enough, sericin in a kind of new filature industrial wastewater of present invention offer
Recovery method, the method uses normal-temperature operation, and energy consumption is low, simple to operate, in the absence of secondary pollution；It is easy to the reel silk from cocoons big to treating capacity
Silk industrial wastewater realizes continuous production, and not only the sericin rate of recovery is high, and it is also higher to reclaim the sericin purity for obtaining.
The recovery method of sericin in filature industrial wastewater of the present invention, specifically by filature industrial wastewater through including filtering
Removal of impurities, resin adsorption, wash-out, collection obtain sericin collection liquid in interior operation；It is particular in that resin adsorption
Resin employed in operation is DEAE-52 ion exchange resin, and filtering and impurity removing, resin adsorption, wash-out, the specific work of collection
Skill can refer to, using in affiliated and association area prior art.
DEAE-52 ion exchange resin, chemical name is DEAE-cellulose 52, the entitled DEAE of foreign language
Cellulose DE-52.The experiment of the present inventor shows that DEAE-52 ion exchange resin is used for silk gum in filature industrial wastewater
During protein salvage, its absorption and parsing effect be significantly better than that using other resin type adsorbents such as AB-8, LX-1180, D101,
The situation of DA201-C, 201 × 7 grades, shows that DEAE-52 ion exchange resin has preferably absorption and analysis feature, sericin
The rate of recovery is high, effectively can reclaim out by the sericin in waste water, and enrichment well is played to sericin in waste water
Effect.
The experiment of the present inventor also found, when simultaneously the resin adsorption in the present invention program and wash-out use following technique
When, adsorbance, resolution factor, the sericin rate of recovery, the concentration of sericin are when reclaimed each parameters such as integrated cost and are reached simultaneously
To the pole figure of merit：The resin adsorption, refers to by through the silk reeling wastewater of filtering and impurity removing, without regulation pH value, with 3~7.5BV/h's
Flow velocity is passed through and is filled with the splitter of the resin so that the sericin in silk reeling wastewater is adsorbed onto on resin, until separating
Stop silk reeling wastewater feed liquor when sericin concentration is 0.05mg/mL in post efflux；The wash-out, refers to pH2~5, dense
The desorbed solution for 0.05~0.2mol/L is spent, the splitter is passed through with the flow velocity of 1~3BV/h, while monitoring splitter outflow
Eluent sericin change in concentration, until wash-out stops the feed liquor of the desorbed solution completely；The desorbed solution is preferred
Using one or more in acidified sodium chloride, Klorvess Liquid.
Commercially available DEAE-52 ion exchange resin, generally need to be by swelling and diluted acid/dilute before the splitter is filled into
The pre-treatments such as alkali immersion, a kind of preferred DEAE-52 ion exchange resin pre-treating technology of the inventive method is：First use deionization
Water soaks 12~24h, again with 1~2molL after rinsing well-1Hydrochloric acid solution soaks 2~6h；Then it is washed with deionized water into
Property, then with 1~2molL-1NaOH solution soaks 2~6h；It is washed with deionized water again to neutrality, it is standby.
To lift resin adsorption efficiency and being easy to serialization industrial production, while production cost is reduced, through the wash-out, receipts
The operation regenerated to the DEAE-52 ion exchange resin in the splitter can be also provided with after collection operation, the present invention is preferably
A kind of DEAE-52 ion exchange resin regeneration methods be：After splitter uses 8~10 cycles, first with 3~5% salt acidleach
3~5h of bubble, is then used by 2~3 times of hydrochloric acid drip washing of the same concentration of volume；It is washed with deionized water to neutrality, then with 3~
5%NaOH soaks 3~5h；2~3 times of sodium hydroxide solution drip washing of the same concentration of volume are then used by, deionized water is finally used
It is washed till neutrality, you can reuse.
It is sericin collection liquid to use above technical scheme to produce the product for obtaining, and the inventive method can also be described
Set after collecting process and the sericin collection liquid that collection is obtained is concentrated and dry operation, to obtain powdered silk gum
Albumen.It is preferred that a kind of concentration technology for using for：The sericin collection liquid that collecting process is obtained is with being concentrated in vacuo to solid
Thing content reaches more than 10% and adjusts neutral to pH；The vacuum preferably used during the vacuum concentration for -0.06~-
0.1MPa, temperature is 55~65 DEG C.
The recovery method of sericin has following features and advantage in filature industrial wastewater of the present invention：
The silk reeling wastewater sericin recovery side such as 1 and existing acid-precipitation method, chemical coagulation process, organic solvent method, ultrafiltration
Method is compared, and the removal process of recovery method of the present invention uses normal-temperature operation, and equipment investment is few, energy consumption is low, simple to operate, does not exist
Secondary pollution；By selected, stronger while parsing effect is also splendid to the absorption specific aim of sericin in silk reeling wastewater
DEAE-52 ion exchange resin, realizes high efficiente callback, enrichment and the efficient reuse of resin of sericin, comprehensive raw
Produce cost relatively low；Coordinate the mode of production switched with multicolumn, it is clear that easily realize silk in industrial mass filature industrial wastewater
The continuous processing of glue protein is reclaimed, thus great industrialization promotion potentiality；
2nd, the sericin purity that recovery is obtained is higher, and quality preferably, can be used for all sides such as food, skin care item and medical science
Face, can greatly increase the added value of production；In addition, it is easy to the silk gum of different purity is obtained by changing manufacturing condition, with
Meet different application demand；
3rd, the inventive method can be used for processing the waste water produced in cocoon cooking, silk reeling process, solve reeling enterprises waste water
While discharge pressure, making full use of for accessory substance is realized.
Specific embodiment
The recovery method of sericin in filature industrial wastewater of the present invention is made further below in conjunction with specific embodiment
Explanation.
First, the sericin recovery method embodiment 1 in filature industrial wastewater：
1st, main technique：By filature industrial wastewater through filtering and impurity removing, resin adsorption, wash-out, collection, concentration, drying, obtain
Powdered sericin；Wherein,
Filtering and impurity removing：Filature industrial wastewater using centrifugation filter type remove insolubility impurity, use sieve aperture for
The filter cloth of 150~200 mesh, 3000~8000rpm of centrifugal rotational speed；
Resin adsorption；PH value need not be adjusted through the silk reeling wastewater of filtering and impurity removing, chromatography post is passed through with the flow velocity of 5BV/h
In, until stopping silk reeling wastewater feed liquor when sericin concentration is 0.05mg/mL in chromatography post efflux；Chromatography post
The adsorbent of interior filling is the DEAE-52 ion exchange resin of commercially available acquirement and passes through pretreatment (or regeneration treatment)；One post
Volume (1BV) is 212mL；
Wash-out and collection：With pH value be acidic sodium chloride solution that 2, concentration is 0.05mol/L as desorbed solution with 2BV/h
Speed flow through splitter and carry out drip washing, while monitor eluent sericin change in concentration, until wash-out stops institute completely
State the feed liquor of desorbed solution；Eluent is collected, sericin collection liquid is obtained；
Concentration：(vacuum is -0.06~-0.1MPa to the collection liquid vacuum concentration that previous operation is obtained, and temperature is 55
~65 DEG C) 10% is reached to solid content, and adjust neutral to pH；
Dry：The concentrate obtained to back carries out heated-air drying, and 55~65 DEG C of drying temperature obtains powdered silk gum
Albumen.
2nd, experimental data and analysis：
In above-described embodiment implementation process, while to the sericin concentration in loading waste water, silk in splitter efflux
Sericin concentration, splitter turnover liquid measure, sericin are collected the experimental datas such as liquid measure and are carried out in glue protein concentration, collection liquid
Monitoring/statistics, the powdered sericin that experiment is finished also to obtaining has carried out purity detecting.It is computed, analyzes and learn：
DEAE-52 ion exchange resin is 25.910mg/g to the adsorbance of sericin in filature industrial wastewater, and adsorption rate is
96.46%；The rate of recovery of the sericin for affording is 95.26%, and purity is 96.71%；Sericin is dense in collection liquid
Degree is 16.33 times of sericin concentration in filature industrial wastewater.
2nd, comparative example's group A：
1st, main technique：The technical scheme of this comparative example group is essentially identical with embodiment 1, and difference is to chromatograph to divide
The adsorbent filled in post is respectively resin type adsorbent A B-8, LX-1180, D101, DA201-C, 201 × 7 (is commercially available
Obtain)；Meanwhile, corresponding parsing agent is respectively adopted after resin adsorption saturation, and (AB-8, LX-1180, D101, DA201-C are used
75% ethanol, 201 × 7 use 0.5mol/L sodium hydroxide solutions) eluted.
2nd, experimental data and analysis：
The adsorbance of AB-8, LX-1180, D101, DA201-C, 201 × 7 resins to sericin in filature industrial wastewater
Respectively 14.627mg/g, 8.269mg/g, 4.546mg/g, 11.118mg/g, 21.957mg/g, adsorption rate are respectively
54.69%th, 31.53%, 17.20%, 41.99%, 82.95%.Because DEAE-52 ion exchange resin is to filature industrial wastewater
The adsorbance of middle sericin is 25.910mg/g, adsorption rate is 96.46%, it is seen that DEAE-52 ion exchange resin is to silk gum
The adsorption effect of albumen is significantly superior.
AB-8, LX-1180, D101, DA201-C, the resolution factor of 201 × 7 resins are respectively 89.48%, 94.65%,
81.82%th, 85.91%, 98.02%, the corresponding sericin rate of recovery is respectively 48.94%, 29.84%, 14.07%,
36.07%th, 81.31%；Corresponding sericin cycles of concentration is respectively 8.39,5.12,2.41,6.18,13.94；And DEAE-
The resolution factor of 52 ion exchange resin is 98.76%, and the sericin rate of recovery is that 95.26%, sericin cycles of concentration is
16.33, it is seen that DEAE-52 ion exchange resin has extremely excellent analysis feature, more preferable waste water sericin separation property simultaneously
Can be with more preferably enriching and recovering performance.
3rd, comparative example's group B：
Below by way of table 1 (a) and table 1 (b), will be using DEAE-52 resins under different absorption and elution processes parameter
The effect that sericin in filature industrial wastewater is reclaimed is contrasted (in following table, except the project and parameter that are expressly set out
Outward, using with identical technique in example 1 above)：
Table 1 (a)
Upper table as shown by data, the present invention reclaims the method for sericin in different realities using DEAE-52 ion exchange resin
Adsorbance higher, resolution factor, the sericine rate of recovery and cycles of concentration are respectively provided with the conditions of applying, show the technology of the present invention side
Case can preferably separate sericin from waste water really, and the work of enriching and recovering is played to the sericin in waste water
With.
Table 1 (b)
Upper table as shown by data, can cause adsorption effect to be substantially deteriorated when loading flow velocity is too high, and equally, elution rate is too high
Parsing effect can be significantly affected；And when desorbed solution pH meta-alkalescences or relatively low salinity, can all make DEAE-52 ion exchange resin
Parsing effect is varied widely.
4th, comparative example's group C：
1st, main technique：This group of technical scheme of embodiment is essentially identical with embodiment 1, and difference is to utilize
The reproducible performance of DEAE-52 ion exchange resin, has carried out 8~10 absorption resolvings in cycle, wherein：
(1) DEAE-52 ion exchange resin is before the splitter is filled into, by following pre-treatment：First use deionization
12~24h of immersion, again with 1~2molL after rinsing well-1Hydrochloric acid solution soaks 2~6h；Then it is washed with deionized water into
Property, then with 1~2molL-1NaOH solution soaks 2~6h；It is washed with deionized water again to neutrality, it is standby.
(2) after wash-out, collecting process, the DEAE-52 ion exchange resin in the splitter is carried out by following technique
Regeneration：Splitter, first with 3~5% salt 3~5h of acid soak, is then used by the same of 2~3 times of volumes using after 8~10 cycles
The hydrochloric acid drip washing of concentration；It is washed with deionized water to neutrality, then 3~5h is soaked with 3~5%NaOH；It is then used by 2~3 times of bodies
The sodium hydroxide solution drip washing of the same concentration of product, is finally washed with deionized water to neutrality, you can reuse.
2nd, experimental result：
The absorption parsing of DEAE-52 ion exchange resin the 2nd, 5,8,10 cycles, the rate of recovery of collection liquid sericin point
Not Wei 93.70%, 85.79%, 81.26%, 78.02%, the purity of sericin is respectively 93.15%, 88.87%,
86.92%th, 85.89%.
3rd, analysis of experimental data
In 2nd cycle of DEAE-52 ion exchange resin absorption parsing, the rate of recovery of collection liquid sericin is 93.70%,
The purity of sericin is 93.15%；8th cycle of DEAE-52 ion exchange resin absorption parsing, collection liquid sericin
The rate of recovery is 81.26%, and the purity of sericin is 86.92%；The 10th week of DEAE-52 ion exchange resin absorption parsing
Phase, the rate of recovery of collection liquid sericin is 78.02%, and the purity of sericin is 85.89%, can still meet demand.From suction
In the attached desorption cycle sericin rate of recovery and purity of collection liquid understand DEAE-52 ion exchange resin reusable 8~
May continue to use after 10 cycles, and regeneration.
Above content is only some better embodiments enumerated to introduce technical solution of the present invention, be not construed as
Limit form of implementation of the invention.The equivalent variations that all one of ordinary skill in the art can make according to technical solution of the present invention with change
Enter, all should belong within the covering scope of technical solution of the present invention.
Claims (7)
1. in filature industrial wastewater sericin recovery method, it is characterised in that：It is through including filtering by filature industrial wastewater
Removal of impurities, resin adsorption, wash-out, collection obtain sericin collection liquid in interior operation；Wherein adopted in resin adsorption operation
Resin is DEAE-52 ion exchange resin.
2. in filature industrial wastewater according to claim 1 sericin recovery method, it is characterised in that：The resin
Absorption, is, by through the silk reeling wastewater of filtering and impurity removing, without regulation pH value, to be passed through with the flow velocity of 3~7.5BV/h and be filled with the tree
In the splitter of fat, until stopping silk reeling wastewater feed liquor when sericin concentration is 0.05mg/mL in splitter efflux；
The wash-out, is that desorbed solution is passed through into the splitter with the flow velocity of 1~3BV/h, while monitoring eluent sericin
The change of concentration, until wash-out stops the feed liquor of the desorbed solution completely；The desorbed solution include acidified sodium chloride,
One or more in Klorvess Liquid, pH2~5, concentration is 0.05~0.2mol/L.
3. in filature industrial wastewater according to claim 2 sericin recovery method, it is characterised in that the DEAE-
52 ion exchange resin before the splitter is filled into, by following pre-treatment：First 12~24h, punching are soaked with deionized water
Again with 1~2molL after wash clean-1Hydrochloric acid solution soaks 2~6h；Then it is washed with deionized water to neutrality, then with 1~2mol
L-1NaOH solution soaks 2~6h；It is washed with deionized water again to neutrality, it is standby.
4. in filature industrial wastewater according to claim 2 sericin recovery method, it is characterised in that through described in wash
After de-, collecting process, the operation regenerated to the DEAE-52 ion exchange resin in the splitter is also included：Separate
Post, first with 3~5% salt 3~5h of acid soak, is then used by 2~3 times of salt of the same concentration of volume using after 8~10 cycles
Sour drip washing；It is washed with deionized water to neutrality, then 3~5h is soaked with 3~5%NaOH；It is then used by 2~3 times of volumes equally dense
The sodium hydroxide solution drip washing of degree, is finally washed with deionized water to neutrality, you can reuse.
5. according to the recovery method of sericin in the described filature industrial wastewater of one of Claims 1-4, it is characterised in that：
After the collecting process, also include and the sericin collection liquid that the collecting process is obtained is concentrated and dry work
Sequence.
6. in filature industrial wastewater according to claim 5 sericin recovery method, it is characterised in that：It is described dense
Contracting is the sericin collection liquid that obtains collecting process be concentrated in vacuo to solid content reach more than 10% and adjust to
PH is neutral.
7. in filature industrial wastewater according to claim 6 sericin recovery method, it is characterised in that：The vacuum
The vacuum of concentration is -0.06~-0.1MPa, and temperature is 55~65 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164059A (en) * | 2018-01-30 | 2018-06-15 | 浙江工业大学膜分离与水处理协同创新中心湖州研究院 | A kind of embrane method processing cocoon boiling wastewater and the method for recycling sericin |
| CN109247424A (en) * | 2018-09-21 | 2019-01-22 | 天津农学院 | A kind of method and its application preparing modified protein by minced fish rinse water |
| CN110040818A (en) * | 2019-05-17 | 2019-07-23 | 浙江工业大学 | Utilize the technique of silk gum in 201 × 7 ion exchange resin recycling filature industrial wastewater |
| CN112456682A (en) * | 2020-11-25 | 2021-03-09 | 赛得利(九江)纤维有限公司 | Process for recovering viscose in viscose wastewater |
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| CN100999545A (en) * | 2007-01-12 | 2007-07-18 | 东华大学 | Process of recovering sericine by ion exchanging |
| CN101575371A (en) * | 2009-05-13 | 2009-11-11 | 桂林奥尼斯特节能环保科技有限责任公司 | Method adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein |
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| CN108164059A (en) * | 2018-01-30 | 2018-06-15 | 浙江工业大学膜分离与水处理协同创新中心湖州研究院 | A kind of embrane method processing cocoon boiling wastewater and the method for recycling sericin |
| CN109247424A (en) * | 2018-09-21 | 2019-01-22 | 天津农学院 | A kind of method and its application preparing modified protein by minced fish rinse water |
| CN110040818A (en) * | 2019-05-17 | 2019-07-23 | 浙江工业大学 | Utilize the technique of silk gum in 201 × 7 ion exchange resin recycling filature industrial wastewater |
| CN112456682A (en) * | 2020-11-25 | 2021-03-09 | 赛得利(九江)纤维有限公司 | Process for recovering viscose in viscose wastewater |
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