CN111875107A - Reuse treatment method of pure silk refining wastewater - Google Patents
Reuse treatment method of pure silk refining wastewater Download PDFInfo
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- CN111875107A CN111875107A CN202010766963.8A CN202010766963A CN111875107A CN 111875107 A CN111875107 A CN 111875107A CN 202010766963 A CN202010766963 A CN 202010766963A CN 111875107 A CN111875107 A CN 111875107A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 44
- 238000007670 refining Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000003756 stirring Methods 0.000 claims abstract description 25
- 239000007864 aqueous solution Substances 0.000 claims abstract description 22
- 230000008021 deposition Effects 0.000 claims abstract description 22
- -1 sodium alkyl benzene Chemical class 0.000 claims abstract description 20
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims abstract description 18
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 18
- 125000002091 cationic group Chemical group 0.000 claims abstract description 16
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000000706 filtrate Substances 0.000 claims abstract description 12
- 239000000440 bentonite Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 229940077388 benzenesulfonate Drugs 0.000 claims abstract description 10
- 229910021538 borax Inorganic materials 0.000 claims abstract description 10
- 235000019864 coconut oil Nutrition 0.000 claims abstract description 10
- 239000003240 coconut oil Substances 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 10
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 10
- 239000011734 sodium Substances 0.000 claims abstract description 10
- 229940104256 sodium taurate Drugs 0.000 claims abstract description 10
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 10
- 239000004328 sodium tetraborate Substances 0.000 claims abstract description 10
- 239000000243 solution Substances 0.000 claims abstract description 9
- 238000009835 boiling Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000011085 pressure filtration Methods 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 6
- 239000010802 sludge Substances 0.000 claims abstract description 6
- 239000006228 supernatant Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000009991 scouring Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 238000004064 recycling Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 108010013296 Sericins Proteins 0.000 claims description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract 4
- 238000001179 sorption measurement Methods 0.000 description 6
- 238000005189 flocculation Methods 0.000 description 5
- 230000016615 flocculation Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004043 dyeing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229940034586 silk sericin Drugs 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009875 water degumming 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
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/80—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides
- D06M11/82—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with boron or compounds thereof, e.g. borides with boron oxides; with boric, meta- or perboric acids or their salts, e.g. with borax
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/256—Sulfonated compounds esters thereof, e.g. sultones
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/419—Amides having nitrogen atoms of amide groups substituted by hydroxyalkyl or by etherified or esterified hydroxyalkyl groups
-
- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a reuse treatment method of pure silk refining wastewater, which comprises the following steps: adding a polyaluminum ferric chloride aqueous solution into the silk broadcloth refining wastewater, then adding a cationic polyacrylamide aqueous solution, stirring and feeding, and then standing to form a deposition solution; filtering the sediment solution, collecting the filtrate, adding boiling water powder and bentonite, stirring, standing, pumping the supernatant as reuse water, collecting the lower layer sediment solution and the sediment obtained after filtering the sediment solution, and performing pressure filtration by using a mud press to obtain sludge; and (3) refining the real silk by using the reuse water, adding borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate to refine the real silk green body, heating, preserving heat, and then washing by using water to obtain the real silk refined white silk. The invention has short process flow, convenient operation and simple and easily obtained raw materials, and realizes the refining process for refining the pure silk by using the reuse water.
Description
Technical Field
The invention relates to the technical field of textile chemistry, in particular to a recycling treatment method of pure silk scouring wastewater.
Background
The silk broadcloth scouring process is an essential procedure for dyeing and finishing silk, sericin accounting for 25-30% of the weight of the silk is removed after scouring, and high-concentration sericin in scouring waste liquid causes high COD (chemical oxygen demand) and ammonia nitrogen in discharged sewage, so that the burden of sewage treatment is increased. In the industry, silk sericin is removed by membrane treatment, acid precipitation, etc. (for example, patent CN101857320B, CN 101575371B). However, these methods mainly aim at extracting sericin and sell the extracted sericin as a product to increase its value, and the processing cost thereof is high. Sericin extracted by refining wastewater has no market purchase behavior, so that the application and popularization of the methods are limited. At present, the silk scouring wastewater is mainly treated together with other printing and dyeing wastewater, and the following steps are often adopted: the process comprises the steps of regulation, precipitation, hydrolytic acidification, anaerobic treatment, aerobic treatment, secondary precipitation and the like, has long process flow, and the wastewater treated by the terminal only meets the pollution discharge requirement and cannot be used for water for refining silk broadcloth. Based on the method, a simple and easily-obtained method is found for treating sericin in wastewater, so that the reuse of pure silk scouring wastewater is realized, and the method has important practical significance for reducing pollution emission and realizing water resource recycling.
Disclosure of Invention
The invention provides a method for recycling and treating pure silk refining wastewater, which has the advantages of short process flow, convenient operation, simple and easily obtained raw materials and realization of the refining process for refining pure silk by recycling water.
The principle of the invention is as follows: flocculating the real silk refining wastewater, filtering, adsorbing the filtered liquid by adopting a mixture of zeolite powder and bentonite to obtain reuse water, and refining the real silk. Flocculation: flocculation of large-particle substances such as sericin and the like is realized in the wastewater by utilizing polyaluminum ferric chloride and cationic polyacrylamide; adsorption: the mixture of zeolite powder and bentonite is adopted to realize the adsorption of small particle suspended substances so as to improve the definition of water quality; recycling: borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate composite auxiliary agents are added into the recycled water to refine the real silk green bodies, and the indexes of the refined product reach the level of clear water refining.
The technical scheme is as follows:
a recycling treatment method of pure silk scouring wastewater comprises the following steps:
(1) flocculation
Adding Polymeric Aluminum Ferric Chloride (PAFC) aqueous solution into the silk broadcloth refining wastewater, stirring while feeding, and continuously stirring for 20-30min after feeding to ensure that the polymeric aluminum ferric chloride aqueous solution is fully contacted with large sericin particles; then adding a Cationic Polyacrylamide (CPAM) aqueous solution, stirring and feeding, continuing to stir for 30-40min after the feeding is finished, and then standing for 60-120min to form a deposition solution;
in the step (1), the concentration of the polyaluminum ferric chloride (PAFC) in the aqueous solution of the polyaluminum ferric chloride (PAFC) is 150-200 g/L. The method is characterized in that based on the calculation of silk broadcloth refining wastewater, the consumption of the polyaluminum ferric chloride (PAFC) is 20-30g/L, namely 20-30g of the polyaluminum ferric chloride is added into each liter of the silk broadcloth refining wastewater.
The concentration of the cationic polyacrylamide (CPAM, ion degree of 10) aqueous solution is 2-4g/L, and the ion degree of the cationic polyacrylamide is 10. Taking the pure silk refining wastewater as a calculation reference, the dosage of the cationic polyacrylamide (CPAM, the ionic degree of 10) is 10-15g/L, namely 10-15g of cationic polyacrylamide is added into each liter of pure silk refining wastewater.
(2) Adsorption
Filtering the deposition liquid obtained in the step (1), collecting filtrate, adding boiling water powder and bentonite, stirring for 40-60min, standing for 60-120min, pumping out supernatant as reuse water, collecting lower-layer deposition liquid and the deposition obtained after filtering the deposition liquid obtained in the step (1), and performing pressure filtration by using a mud press to obtain sludge;
in the step (2), the dosage of the boiling water powder is 20-30g/L by taking the collected filtrate as a calculation reference.
The dosage of the bentonite is 30-45g/L based on the collected filtrate.
The dosage of the bentonite is preferably kept to be 1.5 times of the dosage of the zeolite,
(3) reuse of
And (3) using the reuse water obtained in the step (2) for silk refining, adding borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate to refine the silk green body, heating to 95-98 ℃, keeping the temperature for 60-90min, and then washing with water to obtain the white silk refined by silk.
The using amount of the borax is 2-3g/L by taking recycled water as a calculation reference.
The dosage of the coconut oil alkyl diethanolamide is 1-2g/L by taking the reuse water as a calculation reference.
The amount of the sodium alkyl benzene sulfonate is 0.5-1g/L based on the calculation of reuse water.
The dosage of the fatty acyl methyl sodium taurate is 0.5-1g/L by taking recycled water as a calculation reference.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the invention reduces COD, ammonia nitrogen and turbidity of the real silk scouring wastewater by adopting a flocculation-adsorption mode, and provides necessary conditions for recycling the real silk scouring wastewater
And secondly, adopting borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate composite scouring agent to scour the real silk, wherein the pH value in the scouring process is stable, the dissolving effect on the real silk sericin is good, and the degumming rate of the real silk is uniform.
Thirdly, the medicine of the invention is cheap and easy to obtain, the cost is low, the process flow is simple, the treatment burden of the silk broadcloth scouring wastewater is greatly reduced, the wastewater discharge is reduced, the cyclic utilization of water resources is improved, the operation is convenient, and the industrialized implementation is easy.
Detailed Description
Example 1
(1) Flocculation
Pre-preparing a polymeric aluminum ferric chloride PAFC (trade name: polymeric aluminum ferric chloride) aqueous solution with the concentration of 150 g/L; the concentration of the cationic polyacrylamide CPAM (product: Pofura water treatment Co., Ltd., Osseiforme, trade name: cationic 10 ion degree) aqueous solution was 2 g/L. Adding a PAFC aqueous solution into the silk broadcloth refining wastewater with the dosage of 20g/L (taking the silk broadcloth refining wastewater as a calculation reference), stirring and adding materials, and continuously stirring for 20min after the materials are added so as to ensure that the materials are fully contacted with large sericin particles; then adding CPAM aqueous solution with the dosage of 10g/L (based on the pure silk refining wastewater), stirring and adding, continuing to stir for 30min after the addition is finished, and then standing for 60min to form deposition liquid.
(2) Adsorption
Filtering the deposition solution obtained in the step (1), collecting the filtrate, adding 20g/L of boiling water powder (calculated by using the collected filtrate) and 30g/L of bentonite (calculated by using the collected filtrate), stirring for 40min, and standing for 60 min. And (3) pumping away the supernatant as reuse water, collecting the lower-layer precipitation liquid and the precipitate obtained after filtering the deposition liquid in the step (1), and performing pressure filtration by using a mud press to obtain sludge.
(3) Reuse of
And (3) using the reuse water obtained in the step (2) for silk refining, adding 2g/L of borax (calculated by using reuse water as a reference), 1g/L of coconut oil alkyl diethanolamide (calculated by using reuse water as a reference), 0.5g/L of sodium alkyl benzene sulfonate (calculated by using reuse water as a reference), and 0.5g/L of fatty acyl methyl sodium taurate (calculated by using reuse water as a reference) to refine the silk green body, heating to 95-98 ℃, preserving heat for 90min, and then washing with water to obtain the silk refined white silk.
The comparison result of the technical indexes of the recycled water refined silk white silk and the technical indexes of the clear water refined silk white silk is shown in the following table 1:
TABLE 1
Example 2
(1) Flocculation
Pre-preparing a polymeric aluminum ferric chloride PAFC (trade name: polymeric aluminum ferric chloride) aqueous solution with the concentration of 200 g/L; the concentration of the cationic polyacrylamide CPAM (product: Pofura water treatment Co., Ltd., Osseiforme, trade name: cationic 10 ion degree) aqueous solution was 4 g/L. Adding a PAFC aqueous solution into the silk broadcloth refining wastewater with the dosage of 30g/L (taking the silk broadcloth refining wastewater as a calculation reference), stirring and adding materials, and continuing stirring for 30min after the materials are added so as to ensure that the materials are fully contacted with large sericin particles; then CPAM aqueous solution with the dosage of 15g/L (based on the pure silk refining wastewater) is added, the materials are stirred and added, after the materials are added, the materials are stirred for 40min, and then the materials are kept stand for 120min to form deposition liquid.
(2) Adsorption
Filtering the deposition solution obtained in the step (1), collecting filtrate, adding 30g/L of boiling water powder and 45g/L of bentonite, stirring for 60min, and standing for 120 min. And (3) pumping away the supernatant as reuse water, collecting the lower-layer precipitation liquid and the precipitate obtained after filtering the deposition liquid in the step (1), and performing pressure filtration by using a mud press to obtain sludge.
(3) Reuse of
And (3) using the reuse water obtained in the step (2) for silk refining, adding 3g/L of borax (calculated by using reuse water as a reference), 2g/L of coconut oil alkyl diethanolamide (calculated by using reuse water as a reference), 1g/L of sodium alkyl benzene sulfonate (calculated by using reuse water as a reference) and 1g/L of fatty acyl methyl sodium taurate (calculated by using reuse water as a reference) to refine the silk green body, heating to 95-98 ℃, preserving heat for 60min, and then washing with water to obtain the silk refined white silk.
The comparison result of the technical indexes of the recycled water refined silk white silk and the technical indexes of the clear water refined silk white silk is shown in the following table 2:
TABLE 2
Claims (10)
1. A recycling treatment method of silk broadcloth scouring wastewater is characterized by comprising the following steps:
(1) adding a polyaluminum ferric chloride aqueous solution into the silk broadcloth refining wastewater, stirring while feeding, and continuously stirring after feeding to ensure that the polymeric aluminum ferric chloride aqueous solution is fully contacted with sericin large particles; then, adding a cationic polyacrylamide aqueous solution, stirring and feeding, continuing stirring after the feeding is finished, and then standing to form a deposition solution;
(2) filtering the deposition liquid obtained in the step (1), collecting filtrate, adding boiling water powder and bentonite, stirring, standing, pumping out supernatant as reuse water, collecting the lower-layer deposition liquid and the deposition obtained after filtering the deposition liquid obtained in the step (1), and performing pressure filtration by using a mud press to obtain sludge;
(3) and (3) using the reuse water obtained in the step (2) for silk refining, adding borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate to refine the silk green body, heating, keeping the temperature, and then washing with water to obtain the silk refined white silk.
2. The reuse treatment method of silk broadcloth scouring wastewater according to claim 1, characterized by comprising the following steps:
(1) adding a polyaluminum ferric chloride aqueous solution into the silk broadcloth refining wastewater, adding materials while stirring, and continuously stirring for 20-30min after the materials are added so as to ensure that the materials are fully contacted with large sericin particles; then adding the cationic polyacrylamide aqueous solution, adding the cationic polyacrylamide while stirring, continuing to stir for 30-40min after the addition is finished, and then standing for 60-120min to form a deposition solution.
(2) Filtering the deposition liquid obtained in the step (1), collecting filtrate, adding boiling water powder and bentonite, stirring for 40-60min, standing for 60-120min, pumping out supernatant as reuse water, collecting lower-layer deposition liquid and the deposition obtained after filtering the deposition liquid obtained in the step (1), and performing pressure filtration by using a mud press to obtain sludge;
(3) and (3) using the reuse water obtained in the step (2) for silk refining, adding borax, coconut oil alkyl diethanolamide, sodium alkyl benzene sulfonate and fatty acyl methyl sodium taurate to refine the silk green body, heating to 95-98 ℃, keeping the temperature for 60-90min, and then washing with water to obtain the white silk refined by silk.
3. The recycling treatment method of silk broadcloth refining wastewater as set forth in claim 1 or 2, wherein in the step (1), the concentration of polyaluminum ferric chloride in the polyaluminum ferric chloride aqueous solution is 150-200 g/L.
4. The method for recycling and treating silk broadcloth refining wastewater as claimed in claim 1 or 2, wherein in the step (1), the consumption of the polyaluminum ferric chloride is 20-30g/L based on the silk broadcloth refining wastewater.
5. The recycling treatment method of silk broadcloth scouring wastewater according to claim 1 or 2, characterized in that in the step (1), the concentration of the cationic polyacrylamide aqueous solution is 2-4 g/L.
6. The method for recycling and treating silk broadcloth refining wastewater as claimed in claim 1 or 2, wherein in the step (1), the dosage of the cationic polyacrylamide is 10-15g/L based on the silk broadcloth refining wastewater.
7. The recycling treatment method of silk broadcloth scouring wastewater according to claim 1 or 2, characterized in that in the step (2), the amount of the boiling water powder is 20-30g/L based on the collected filtrate.
8. The recycling treatment method of silk broadcloth scouring wastewater according to claim 1 or 2, characterized in that in the step (2), the dosage of the bentonite is 30-45g/L based on the collected filtrate.
9. The reuse treatment method of silk broadcloth scouring wastewater according to claim 1 or 2, characterized in that in the step (3), the amount of borax is 2-3g/L based on the calculation of reuse water;
the dosage of the coconut oil alkyl diethanolamide is 1-2g/L by taking the reuse water as a calculation reference.
10. The reuse treatment method of silk broadcloth scouring wastewater according to claim 1 or 2, characterized in that, in the step (3), the amount of the sodium alkyl benzene sulfonate is 0.5-1g/L based on the reuse water;
the dosage of the fatty acyl methyl sodium taurate is 0.5-1g/L by taking recycled water as a calculation reference.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114808463A (en) * | 2022-06-09 | 2022-07-29 | 杭州天瑞印染有限公司 | Environment-friendly energy-saving efficient pretreatment process for environment-friendly rayon fabric |
| CN114808463B (en) * | 2022-06-09 | 2023-10-27 | 杭州天瑞印染有限公司 | Environment-friendly energy-saving efficient pretreatment process for environment-friendly human cotton fabric |
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