CN101575371A - Method adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein - Google Patents
Method adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein Download PDFInfo
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- CN101575371A CN101575371A CN 200910114063 CN200910114063A CN101575371A CN 101575371 A CN101575371 A CN 101575371A CN 200910114063 CN200910114063 CN 200910114063 CN 200910114063 A CN200910114063 A CN 200910114063A CN 101575371 A CN101575371 A CN 101575371A
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- tannin
- sericin
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- wastewater
- waste water
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Abstract
The invention discloses a method which adopts tannin to process silkworm cocoon processing wastewater and recycle sericin protein. The method is characterized in that: firstly, tannin solution is prepared by a conventional method; secondly, under the condition of stirring, sulphuric acid or hydrochloric acid is added to wastewater containing sericin; thirdly, under the condition of complete stirring, the tannin solution is added until the sericin protein is completely precipitated, and the turbid wastewater can be clarified; fourthly, standing is carried out for solid-liquid separation; fifthly, after sand in water is filtered, the wastewater reaches the grade 2 discharge standard and then is discharged or recycled; and sixthly, solid substances are cleaned and treated by alcohol to cause the solid-liquid separation, and after the solid is dried the sericin protein can be obtained. The method has the advantages that the tannin is the pure natural and environment-friendly protein flocculant and is available; tannin can fast and efficiently act with the sericin protein, the sericin protein can be separated out more completely than other methods, the formed floccule is easy to precipitate, the separation technology is simple, and the COD removal rate is high.
Description
Technical field
The present invention relates to the processing of organic waste water, specifically a kind of method of handling silkworm cocoon processing wastewater and recovery sericin with tannin.
Background technology
The silk cocoon course of processing produces the high concentrated organic wastewater that contains a large amount of sericins, how to handle this type of waste water effectively, simultaneously these natural resource of sericin is recycled, turn waste into wealth, and be the problem that the silk cocoon processing industry presses for solution.Existing method such as acid-precipitation method, chemical coagulation process etc., these methods exist that processing efficiency is low, running cost is high, the rate of recovery of sericin is not high and impure defective such as many.
Summary of the invention
It is low to the objective of the invention is to disclose a kind of cost, the efficient height, and technology is simple, and is easy and simple to handle, and what be convenient to industrial applications handles the method that silk cocoon is processed silk gum waste water and reclaimed sericin with tannin.
The technical scheme that realizes the object of the invention is:
The appliable plant tannin is handled cocoon sericin waste water and is reclaimed sericin as flocculation agent, and concrete processing step comprises:
1, presses the tanning solution of well-established law compound concentration 1～20g/L;
2, containing the frigon waste water (COD of silk gum
CrBe 8000～35000mg/L), cocoon cooking or silk reeling wastewater (COD
CrBe in 150～700mg/L), agitation condition adds sulfuric acid or hydrochloric acid down, and the pH value that makes waste water is 3～6;
3, add tanning solution under well-beaten state, complete to the sericin precipitation, waste water becomes clarification by muddiness and ends;
4, leave standstill, make solid-liquid separation;
5, the water outlet of step 4 COD after the sand filter
Cr＜200mg/L, discharging or reuse;
6, the solids of step 4 is cleaned, handled with alcohol, solid-liquid separation, solid drying promptly obtains the higher sericin of purity.
Described vegatable tannin also claims plant polyphenol, comprises the polyphenol monomer or the mixture that extract from each position of each kind of plant, and the material that contains vegatable tannin, as the juice of common various tannin extracts, vegetable tanning agent, the plant that contains tannin and fruit thereof etc.
Obtain tannin spirituous solution remaining behind the sericin, available distillation under vacuum is recovered alcohol and tannin respectively, for recycling.
The invention has the advantages that:
1, tannin is a class pure natural, eco-friendly protein flocculation agent, and wide material sources;
The effect of tannin and sericin rapidly and efficiently, sericin is separated out more complete than additive method, the flco of formation is easy to sedimentation, separating technology is simple, COD clearance height can reach more than 90%;
3, can reclaim sericin, can further be processed as nutritious prod, cosmetic material, also can be used as feed or fertilizer;
4, the flocculation agent tannin can recycling use.
Embodiment:
Further specify technical scheme of the present invention below by 4 indefiniteness embodiment that enumerate.
Embodiment 1:
The present invention utilizes tannin to proteinic cohesion, reaches the purpose that reclaims sericin and administer waste water from silk gum waste water, and its processing step is as follows:
(1) contains organic solvent solutions such as the water of tannin 20g/L or ethanol with tannin extract preparation;
(2) containing the frigon waste water of silk gum, agitation condition adds certain density sulfuric acid or hydrochloric acid down, makes the pH value of waste water be about 4;
(3) under fully stirring, adding tanning solution, complete to waste water clarification, silk gum flocculation sediment;
(4) leave standstill, make solid-liquid separation with sedimentation, filtration, known method such as centrifugal;
(5) water outlet of step (4) reaches secondary discharge standard discharging or reuse after the sand filter further purifies;
(6) handle with alcohol after the solids of step (4) is cleaned, solid-liquid separation, solid drying promptly obtains the higher sericin of purity.
Embodiment 2:
(1) prepares the aqueous solution that contains tannin 8g/L with tannin extract;
(2) in containing the cocoon boiling wastewater of silk gum, agitation condition adds certain density sulfuric acid or hydrochloric acid down, makes the pH value of waste water be about 5;
(3) add tanning solution fully stirring, complete to waste water clarification, silk gum flocculation sediment;
All the other are with embodiment 1.Waste water reaches secondary discharge standard discharging or reuse.
Embodiment 3:
(1) prepares the aqueous solution that contains tannin 1g/L with tannin extract;
(2) in containing the silk reeling wastewater of silk gum, agitation condition adds certain density sulfuric acid or hydrochloric acid down, makes the pH value of waste water be about 5;
(3) add tanning solution fully stirring, complete to waste water clarification, silk gum flocculation sediment;
All the other are with embodiment 1.Waste water reaches secondary discharge standard discharging or reuse.
Embodiment 4:
(1) persimmon that will contain tannin is squeezed the juice or is pulled an oar, and makes the concentration of tannin reach 6g/L;
(2) in silk gum waste water, agitation condition adds certain density sulfuric acid or hydrochloric acid down, makes the pH value of waste water be about 4;
(3) add an amount of persimmon juice or slurry fully stirring, complete to waste water clarification, silk gum flocculation sediment;
All the other are with embodiment 1.Waste water reaches secondary discharge standard discharging or reuse.
Claims (4)
1, a kind of method with tannin processing silkworm cocoon processing wastewater and recovery sericin, it is characterized in that: this method comprises the steps:
1) presses the solution that well-established law is prepared 1～20g/L concentration tannin;
2) containing the frigon waste water COD of silk gum
CrBe 8000～35000mg/L or silk reeling wastewater COD
CrBe 150～700mg/L, agitation condition adds sulfuric acid or hydrochloric acid down, and the pH value that makes waste water is 3～6, then
3) add tanning solution under well-beaten state, complete to the sericin precipitation, waste water becomes clarification by muddiness and ends;
4) leave standstill, make solid-liquid separation;
5) water outlet of step 4) COD after the sand filter
Cr＜200mg/L, discharging or reuse;
6) solids of step 4) is cleaned, handled with alcohol, solid-liquid separation, solid drying promptly gets sericin.
2, method according to claim 1 is characterized in that: tannin comprises polyphenol monomer or the mixture that extracts from each position of each kind of plant, and the material that contains tannin.
3, method according to claim 1 is characterized in that: the liquid of step 6) distillation under vacuum Separation and Recovery alcohol and tannin.
4, the application of tannin in handling silkworm cocoon processing wastewater and recovery sericin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910114063 CN101575371B (en) | 2009-05-13 | 2009-05-13 | Method for adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910114063 CN101575371B (en) | 2009-05-13 | 2009-05-13 | Method for adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein |
Publications (2)
| Publication Number | Publication Date |
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| CN101575371A true CN101575371A (en) | 2009-11-11 |
| CN101575371B CN101575371B (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910114063 Expired - Fee Related CN101575371B (en) | 2009-05-13 | 2009-05-13 | Method for adopting tannin to process silkworm cocoon processing wastewater and recycle sericin protein |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857319A (en) * | 2010-04-16 | 2010-10-13 | 钱永言 | Method for recycling protein from protein-contained waste water |
| CN104356752A (en) * | 2014-10-14 | 2015-02-18 | 安徽澳雅合金有限公司 | Offset printing ink with filature wastewater reused |
| CN106008689A (en) * | 2016-06-30 | 2016-10-12 | 浙江汇能生物股份有限公司 | Sericin recycling method |
| CN106279467A (en) * | 2016-09-21 | 2017-01-04 | 云南师范大学 | A kind of method utilizing tannic extract to fix natural rubber latex proteins matter |
| CN106745878A (en) * | 2016-11-30 | 2017-05-31 | 广西大学 | The recovery method of sericin in filature industrial wastewater |
| CN106804892A (en) * | 2017-01-26 | 2017-06-09 | 黔东南贵人蚕业开发有限公司 | A kind of method that silkworm chrysalis protein is extracted from fresh silk cocoon silk reeling wastewater |
| CN108221173A (en) * | 2018-01-26 | 2018-06-29 | 徐州光彩丝绵制品有限公司 | A kind of high-efficiency antimicrobial silk wadding quilt and preparation method thereof |
| CN108996741A (en) * | 2018-07-17 | 2018-12-14 | 舒城县宏通丝业有限公司 | A kind for the treatment of process of silk reeling wastewater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108047322A (en) * | 2017-12-19 | 2018-05-18 | 上海祁稷新材料发展有限公司 | A kind of preparation method and application of sericin |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100999545B (en) * | 2007-01-12 | 2010-09-08 | 东华大学 | Process of recovering sericine by ion exchanging |
| CN100506840C (en) * | 2007-11-30 | 2009-07-01 | 重庆工学院 | Method for treating waste water containing sericin protein |
-
2009
- 2009-05-13 CN CN 200910114063 patent/CN101575371B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857319A (en) * | 2010-04-16 | 2010-10-13 | 钱永言 | Method for recycling protein from protein-contained waste water |
| CN104356752A (en) * | 2014-10-14 | 2015-02-18 | 安徽澳雅合金有限公司 | Offset printing ink with filature wastewater reused |
| CN106008689A (en) * | 2016-06-30 | 2016-10-12 | 浙江汇能生物股份有限公司 | Sericin recycling method |
| CN106279467A (en) * | 2016-09-21 | 2017-01-04 | 云南师范大学 | A kind of method utilizing tannic extract to fix natural rubber latex proteins matter |
| CN106745878A (en) * | 2016-11-30 | 2017-05-31 | 广西大学 | The recovery method of sericin in filature industrial wastewater |
| CN106804892A (en) * | 2017-01-26 | 2017-06-09 | 黔东南贵人蚕业开发有限公司 | A kind of method that silkworm chrysalis protein is extracted from fresh silk cocoon silk reeling wastewater |
| CN108221173A (en) * | 2018-01-26 | 2018-06-29 | 徐州光彩丝绵制品有限公司 | A kind of high-efficiency antimicrobial silk wadding quilt and preparation method thereof |
| CN108996741A (en) * | 2018-07-17 | 2018-12-14 | 舒城县宏通丝业有限公司 | A kind for the treatment of process of silk reeling wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101575371B (en) | 2013-09-18 |
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Granted publication date: 20130918 Termination date: 20180513 |