CN107311387A - A kind of deep treatment method of dyeing waste water - Google Patents
A kind of deep treatment method of dyeing waste water Download PDFInfo
- Publication number
- CN107311387A CN107311387A CN201710774926.XA CN201710774926A CN107311387A CN 107311387 A CN107311387 A CN 107311387A CN 201710774926 A CN201710774926 A CN 201710774926A CN 107311387 A CN107311387 A CN 107311387A
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- nano
- water
- waste water
- particle
- dyeing waste
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- 238000004043 dyeing Methods 0.000 title claims abstract description 66
- 239000002351 wastewater Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910001868 water Inorganic materials 0.000 claims abstract description 56
- 239000000017 hydrogel Substances 0.000 claims abstract description 42
- 239000002121 nanofiber Substances 0.000 claims abstract description 32
- 229920001661 Chitosan Polymers 0.000 claims abstract description 21
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 20
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 20
- 238000013327 media filtration Methods 0.000 claims abstract description 19
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 17
- 238000007639 printing Methods 0.000 claims abstract description 17
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 16
- 230000001699 photocatalysis Effects 0.000 claims abstract description 13
- 238000007146 photocatalysis Methods 0.000 claims abstract description 12
- 150000003839 salts Chemical class 0.000 claims abstract description 11
- 238000005374 membrane filtration Methods 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000004753 textile Substances 0.000 claims abstract description 6
- 239000002105 nanoparticle Substances 0.000 claims description 45
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 44
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 239000000440 bentonite Substances 0.000 claims description 21
- 229910000278 bentonite Inorganic materials 0.000 claims description 21
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 150000002500 ions Chemical class 0.000 claims description 18
- 238000001179 sorption measurement Methods 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 13
- 238000002360 preparation method Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 10
- 238000007885 magnetic separation Methods 0.000 claims description 10
- 229920001223 polyethylene glycol Polymers 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 150000003460 sulfonic acids Chemical class 0.000 claims description 8
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 7
- 229910000077 silane Inorganic materials 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 6
- 239000003431 cross linking reagent Substances 0.000 claims description 6
- 230000007062 hydrolysis Effects 0.000 claims description 6
- 238000006460 hydrolysis reaction Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 239000006004 Quartz sand Substances 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 230000001112 coagulating effect Effects 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 5
- 230000005426 magnetic field effect Effects 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 claims description 4
- 229910000348 titanium sulfate Inorganic materials 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000000499 gel Substances 0.000 claims description 2
- 239000011806 microball Substances 0.000 claims description 2
- 239000004005 microsphere Substances 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000005304 joining Methods 0.000 claims 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
- 239000005416 organic matter Substances 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 4
- 239000011553 magnetic fluid Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010907 mechanical stirring Methods 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical class O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical class C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007269 microbial metabolism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000005408 paramagnetism Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- HFDCVHDLKUZMDI-UHFFFAOYSA-N sulfuric acid titanium Chemical compound [Ti].OS(O)(=O)=O HFDCVHDLKUZMDI-UHFFFAOYSA-N 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000000108 ultra-filtration 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28047—Gels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/26—Electrical properties
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
-
- 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
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
- C02F2101/20—Heavy metals or heavy metal 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Dispersion Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a kind of deep treatment method of dyeing waste water, this method comprises the following steps：Step 1: media filtration；Step 2: magnetic hydrogel microballoon is adsorbed；Step 3: light-catalyzed reaction；Step 4: Electrospun nano-fibers membrane filtration；Step 5: milipore filter section.The advanced treatment method for printing and dyeing wastewater that the present invention is provided adsorbs most of impurity, organic matter and heavy metal ion by the magnetic hydrogel microballoon of excellent performance, photo catalysis reactor is used again by the direct mineralising of organic matter, removed by polyvinyl alcohol/chitosan Electrospun nano-fibers film absorption, milipore filter removes most of inorganic salts.The deep treatment method of the dyeing waste water that the present invention is provided is simple to operate, efficiency high, non-secondary pollution, with low cost, and the recycle-water water quality of acquisition meets textile and dyeing industry water supply standard.
Description
Technical field
The present invention relates to technical field of waste water processing, and in particular to a kind of deep treatment method of dyeing waste water.
Background technology
At present, water resource pollution is one of Chinese urgent problem.With being continuously increased for industrialized production, industry
The discharge of sewage is also increasingly serious, and a large amount of trade effluents are directly discharged into river course, endangers aquatic organism system, has a strong impact on the mankind
Life.Dyeing waste water is the waste water of printing and dyeing mill's discharge based on processing cotton, fiber crops, chemical fibre and its blending product.Dyeing waste water
Water is larger, per 1 ton of dyeing and printing process, 100~200 tons of textile water consumption, wherein 80~90% turn into waste water.
For treatment of dyeing wastewater, the technique based on biochemical treatment is used to be presently the most cost-effective processing side
Formula.It is generally believed that the material (effluent matters) remained in bio-chemical effluent includes granulating material from macroscopically differentiation
(particle matters) and solubilised state material (dissolved matters), wherein solubilised state material refers to pass through
The material of 0.45 μm of filter membrane.Because dissolved matter accounts for more than the 85% of total material amount, meanwhile, granulating material can be easier to
Ground is removed by solid-liquid separating methods such as coagulation, filterings, therefore, and the influence of dissolved matter is more in the advanced treating of waste water
To be notable.
The dyestuff and dyestuff metabolite that residue in dyeing waste water bio-chemical effluent have the feature of high chroma, not only cause
Unhappy on people's sense organ, it is thrown into meeting block sunlight in water body and injects water body, triggers microorganism, photosynthesis of plant in water body
Reduction, cause aquatic ecological to change.Azo group, the aromatic group of residual dye, and dyestuff microbial metabolism generation
Aromatic amine organic matter has necessarily carcinogenic, teratogenesis, mutagenesis, while having obvious biological inhibition to act on and biological
Toxicity has metastable property (such as half-life period of the active blue 19 dyestuff in natural environment is up to 49 years) due to it, its
Residual, enrichment in natural environment, people is most had influence on by water circulation at last, with allergy and tissue can be caused to become after human contact
Change；On the other hand, the high armaticity Organic Compounds and organonitrogen compound remained in printing and dyeing bio-chemical effluent can influence earth's surface
Source water water quality, not only increases drinking water treatment cost, and carbon source type and the sterilization of nitrogen source type that can also form higher concentration are secondary
Product.
Therefore, a kind of deep treatment method of dyeing waste water bio-chemical effluent is studied, protection and drinking-water peace to ecological environment
It is complete significant, while being also beneficial to the protection of water resource and making full use of.
The content of the invention
In view of the deficiency of existing treatment method of printing and dying wastewater, discharge of the present invention with dyeing waste water after conventional biochemical treatment
There is provided a kind of efficiency high, non-secondary pollution, deep treatment method with low cost for process object for water.Concrete technical scheme is such as
Under：
A kind of deep treatment method of dyeing waste water, this method comprises the following steps：
Step 1: media filtration：Dyeing waste water is by coagulating sedimentation, anaerobic hydrolysis and activated sludge aeration group technology
Discharge water after reason carries out media filtration, and filter media device, media particle are used as using quartz sand, activated carbon or flyash
0.8~1.2mm of particle diameter, 1~7d of backwash cycle；
Step 2: magnetic hydrogel microballoon is adsorbed：Water outlet after media filtration is passed through in adsorption reaction pond, is added a certain amount of
Magnetic hydrogel microballoon, utilize external magnetic field effect control the rate of adsorption and magnetic hydrogel microballoon separation and recovery；
Step 3: light-catalyzed reaction：Dyeing waste water after magnetic hydrogel adsorption treatment is passed through photo catalysis reactor, device
Wall is quartz glass, and inside reactor is uniformly arranged multilayer aperture 5cm quartzy sieve plate, is modified on sieve plate by silane coupler
There is Fe3O4@TiO2Nano-particle, sunshine or simulated solar light irradiation, mechanical agitation 30~50r/min of speed, reaction time 20
~60min；
Step 4: Electrospun nano-fibers membrane filtration：The water outlet of light-catalyzed reaction is passed through polyvinyl alcohol/chitosan quiet
Heavy metal ion in Electrospun nano-fibers film filter, dyeing waste water is adsorbed by Electrospun nano-fibers film to be removed；
Step 5: milipore filter section：The water outlet of polyvinyl alcohol/chitosan Electrospun nano-fibers film filter passes through poly- inclined
PVF-perfluorinated sulfonic acid (PVDF-PFSA) nano fibrous membrane, the inorganic salts of removing more than 90%, recycle-water can be re-used for spinning
Knit printing and dyeing industry.
Preferably, in step 2 magnetic hydrogel microballoon by Fe3O4Nano-particle, bentonite, carboxymethyl cellulose and crosslinking
Agent is constituted, and its preparation method is as follows：
(1) by bentonite ultrasonic disperse in deionized water, Fe is added under blanket of nitrogen2+And Fe3+Molysite and alkaline matter,
Bentonite and Fe are obtained after reaction3O4The mixture of nano-particle；
(2) by carboxymethyl cellulose dissolving in deionized water, bentonite and Fe are added3O4The mixture of nano-particle with
And crosslinking agent, stir after ultrasonic disperse；
(3) mixed solution for obtaining step (2) is passed through spray dryer and prepares magnetic hydrogel microballoon.
Preferably, Fe in step 33O4@TiO2Nano-particle is TiO2It is coated on Fe3O4The composite nanoparticle on surface, its
Preparation method is：Take a certain amount of Fe3O4Magnetic fluid, is 7.0 with sulphur acid for adjusting pH value, plus a certain amount of polyethylene glycol, a certain amount of sulfuric acid
Titanium is mixed, then adds a certain amount of urea, and adjusts solution ph, and controlling reaction temperature adjusts mixing speed, reacts certain time
Afterwards, synthetic product is through magnetic separation, and removing polyethylene glycol and other free ions is washed with deionized, then uses anhydrous second
After alcohol cleaning for several times, magnetic separation, product spontaneously dries produce Fe at room temperature3O4@TiO2Nano-particle.
Preferably, polyvinyl alcohol/shell gathers in polyvinyl alcohol/chitosan Electrospun nano-fibers film filter in step 4
The number of plies of sugared Electrospun nano-fibers film is 3~5.
The deep treatment method for the dyeing waste water that the present invention is provided, is removed using the method for media filtration and is sunk by coagulation
The particle suspensions in discharge water after shallow lake, anaerobic hydrolysis and the processing of activated sludge aeration group technology, pass through magnetic water afterwards
Gel micro-ball adsorbs bentonite dispersed in further organics removal and suspension, hydrogel and considerably increases hydrogel
Adsorption capacity, its quick adsorption to multiple pollutant, wherein Fe has been effectively ensured in the special construction of microballoon3O4Nano-particle
The adsorbance of hydrogel heavy metal is not only increased, also with paramagnetism, is easily isolated hydrogel microsphere, makes beneficial to circulation
With；Then Fe3O4@TiO2Nano-particle can make the thorough mineralising of dye molecule under sunshine or simulated solar light action, without two
Secondary pollution；By polyvinyl alcohol/chitosan Electrospun nano-fibers membrane filtration, dyeing waste water can be removed by suction-operated
In heavy metal ion, remove solvable inorganic salts finally by Kynoar-perfluorinated sulfonic acid nano fibrous membrane, obtain it is colourless,
Clarification, tasteless, COD value is in below 30mg/L, the recycle-water of removal of heavy metal ions rate more than 80%, can be again as weaving print
Contaminate industrial water.
Magnetic Fe is prepared using sluggish precipitation in step 3 of the present invention3O4@TiO2Nano-particle, is realized with magnetic material
Expect Fe3O4For core, nano-TiO2It is coated on the micro Fe decomposed in its outside structure, preparation process3+Effectively reduction TiO2Taboo
Bandwidth, can not only strengthen the photocatalysis of semiconductor, can also make semiconductor absorbing wavelength scope extend to it is visible
Light region.The nano-particles size of the structure is smaller, and magnetic is strong, and Photocatalytic Decoloration rate and organic efficiency are high；Photo catalysis reactor
Wall and screen cloth are made by quartz glass, and light transmittance is high, can directly utilize the energy of sunshine, reduce processing cost；By setting
The quartzy sieve plate of multilayer is put, by Fe3O4@TiO2Nano-particle is supported on quartzy sieve plate by silane coupler, ensure that
Fe3O4@TiO2Nano-particle is fully contacted with dyeing waste water, improves light-catalyzed reaction speed.
The deep treatment method for the dyeing waste water that the present invention is provided, has the advantages that compared with prior art：
1. the magnetic hydrogel microballoon that the present invention is provided, without complicated component, the group for having radiation, easily causing secondary pollution
Point, it is raw materials used cheap and easy to get, prepare simply, the absorption property of hydrogel can be given full play to, residual can be effectively adsorbed
Solubilised state dye molecule, controls the rate of adsorption, while can by external magnetic field by external magnetic field to the effect of magnetic hydrogel microballoon
Directly magnetic hydrogel microballoon is separated, it is simple to operate；
2. the photo catalysis reactor that the present invention is provided, by Fe3O4@TiO2Nano-particle is supported on stone by silane coupler
On English sieve plate, by by TiO2It is coated on Fe3O4Surface, overcomes TiO2Particle diameter is small, the shortcoming being easy to run off using process, and
Fe3O4The micro Fe decomposed in preparation process3+Effectively reduction TiO2Energy gap, it is possible to increase TiO2Photocatalytic activity, machine
Tool stirring does not result in Fe3O4@TiO2Nano-particle loses, and handled water can pass through sieve plate hole, it is ensured that with sieve plate
Fe3O4@TiO2Nano-particle is fully contacted, and light-catalyzed reaction efficiency is improved, by directly by the dyestuff organic molecule ore deposit of residual
Change, can effectively remove the organic matter not adsorbed in magnetic hydrogel microballoon step, can directly utilize through quartzy wall too
Sunlight, without additional ultraviolet light, reduces the Fe on energy consumption, quartzy sieve plate3O4@TiO2Nano-particle is easy to reclaim, and saves into
This, dyestuff organic matter removal is thorough, without post processing；
3. polyvinyl alcohol/chitosan Electrospun nano-fibers film used in the present invention has high specific surface area and hole
Rate, can fix heavy metal, and the absorption non-selectivity of heavy metal by Electrostatic Absorption and complexing, can thoroughly remove
Heavy metal ion in water, and can by the heavy metal ion desorption adsorbed, can recycled for multiple times, reduce cost；
4. milipore filter used of the invention is Kynoar-perfluorinated sulfonic acid (PVDF-PFSA) nano fibrous membrane, gather with common
Vinylidene fluoride film is compared, and water flux and rejection are high, and desalting effect is good, and antifouling property is greatly improved；
5. the deep treatment method for the dyeing waste water that the present invention is provided, processing speed is fast, cost is low, and secondary dirt is not produced
Dye, water outlet can be directly used for textile and dyeing industry, good in economic efficiency.
Brief description of the drawings
Fig. 1 is photo catalysis reactor structural representation front view, and wherein 1- quartz sieve plates, 2- quartz walls, 3- machineries are stirred
Mix device.
Fig. 2 is photo catalysis reactor structural representation top view, wherein 2- quartz walls, 3- mechanical agitators, 4- sieve plates
Hole.
Embodiment
Further to illustrate the present invention technological means and its effect taken, below in conjunction with the excellent of accompanying drawing and the present invention
Embodiment is selected to be described in detail.
Embodiment 1
A kind of deep treatment method of dyeing waste water, this method comprises the following steps：
Step 1: media filtration：Dyeing waste water is by coagulating sedimentation, anaerobic hydrolysis and activated sludge aeration group technology
Discharge water after reason carries out media filtration, and filter media device, media particle are used as using quartz sand, activated carbon or flyash
0.8~1.2mm of particle diameter, 1~7d of backwash cycle；
Step 2: magnetic hydrogel microballoon is adsorbed：Water outlet after media filtration is passed through in adsorption reaction pond, is thrown by water per ton
Put 0.1kg magnetic hydrogel microballoons, using external magnetic field effect control the rate of adsorption, it is to be adsorbed after the completion of, by magnetic hydrogel
Microballoon is separated and recovered；
Step 3: light-catalyzed reaction：Dyeing waste water after magnetic hydrogel adsorption treatment is passed through photo catalysis reactor (figure
1st, shown in 2), wall is quartz glass, and inside reactor is uniformly arranged multilayer aperture 5cm quartzy sieve plate (1 in Fig. 1), sieve plate
It is upper that Fe is modified with by silane coupler3O4@TiO2Nano-particle, sunshine irradiation, mechanical agitation speed 30r/min, printing and dyeing are useless
Water under mechanical stirring can be through the Fe modified on sieve plate hole (4 in Fig. 2) and sieve plate3O4@TiO2Nano-particle is fully contacted,
Dye molecule is promoted to occur light-catalyzed reaction, reaction time 20min；
Step 4: Electrospun nano-fibers membrane filtration：The water outlet of light-catalyzed reaction is passed through polyvinyl alcohol/chitosan quiet
Electrospun nano-fibers film filter, during the number of plies of polyvinyl alcohol/chitosan Electrospun nano-fibers film is 3, dyeing waste water
Heavy metal ion by Electrospun nano-fibers film adsorb remove；
Step 5: milipore filter section：The water outlet of polyvinyl alcohol/chitosan Electrospun nano-fibers film filter passes through poly- inclined
PVF-perfluorinated sulfonic acid (PVDF-PFSA) nano fibrous membrane, the inorganic salts of removing more than 90%, recycle-water can be re-used for spinning
Knit printing and dyeing industry.
Wherein, in step 2 magnetic hydrogel microballoon by Fe3O4Nano-particle, bentonite, carboxymethyl cellulose and crosslinking agent
Composition, its preparation method is as follows：
(1) by bentonite ultrasonic disperse in deionized water, FeSO is added in a nitrogen atmosphere4、Fe2(SO4)3And ammoniacal liquor,
FeSO4With Fe2(SO4)3Mol ratio be 2:1, obtain bentonite and Fe after reaction3O4The mixture of nano-particle；
(2) dissolving of 100g carboxymethyl celluloses in deionized water, adds bentonite and Fe3O4The mixture of nano-particle
Stirred after 1g and 1g citric acids, ultrasonic disperse；
(3) mixed solution for obtaining step (2) is passed through spray dryer and prepares magnetic hydrogel microballoon.
Fe in step 33O4@TiO2The preparation method of nano-particle is：Take a certain amount of Fe3O4Magnetic fluid, uses sulphur acid for adjusting pH
It is worth for 7.0, plus 30mL polyethylene glycol, titanium sulfate concentration 0.08mol/L is mixed, urea concentration 0.1mol/L, and adjusts pH value of solution
For 2.5, controlling reaction temperature is 80 DEG C, mixing speed 150r/min, and after reaction 3h, synthetic product is spent through magnetic separation
Ion water washing removes polyethylene glycol and other free ions, then with after washes of absolute alcohol 5 times, magnetic separation, product exists
Spontaneously dry at room temperature and produce Fe3O4@TiO2Nano-particle.
Embodiment 2
A kind of deep treatment method of dyeing waste water, this method comprises the following steps：
Step 1: media filtration：Dyeing waste water is by coagulating sedimentation, anaerobic hydrolysis and activated sludge aeration group technology
Discharge water after reason carries out media filtration, and filter media device, media particle are used as using quartz sand, activated carbon or flyash
0.8~1.2mm of particle diameter, 1~7d of backwash cycle；
Step 2: magnetic hydrogel microballoon is adsorbed：Water outlet after media filtration is passed through in adsorption reaction pond, is thrown by water per ton
Put 0.15kg magnetic hydrogel microballoons, using external magnetic field effect control the rate of adsorption, it is to be adsorbed after the completion of, by magnetic hydrogel
Microballoon is separated and recovered；
Step 3: light-catalyzed reaction：Dyeing waste water after magnetic hydrogel adsorption treatment is passed through photo catalysis reactor (figure
1st, shown in 2), wall is quartz glass, and inside reactor is uniformly arranged multilayer aperture 5cm quartzy sieve plate (1 in Fig. 1), sieve plate
It is upper that Fe is modified with by silane coupler3O4@TiO2Nano-particle, sunshine irradiation, mechanical agitation speed 40r/min, printing and dyeing are useless
Water under mechanical stirring can be through the Fe modified on sieve plate hole (4 in Fig. 2) and sieve plate3O4@TiO2Nano-particle is fully contacted,
Dye molecule is promoted to occur light-catalyzed reaction, reaction time 50min；
Step 4: Electrospun nano-fibers membrane filtration：The water outlet of light-catalyzed reaction is passed through polyvinyl alcohol/chitosan quiet
Electrospun nano-fibers film filter, during the number of plies of polyvinyl alcohol/chitosan Electrospun nano-fibers film is 4, dyeing waste water
Heavy metal ion by Electrospun nano-fibers film adsorb remove；
Step 5: milipore filter section：The water outlet of polyvinyl alcohol/chitosan Electrospun nano-fibers film filter passes through poly- inclined
PVF-perfluorinated sulfonic acid (PVDF-PFSA) nano fibrous membrane, the inorganic salts of removing more than 90%, recycle-water can be re-used for spinning
Knit printing and dyeing industry.
Wherein, in step 2 magnetic hydrogel microballoon by Fe3O4Nano-particle, bentonite, carboxymethyl cellulose and crosslinking agent
Composition, its preparation method is as follows：
(1) by bentonite ultrasonic disperse in deionized water, FeSO is added in a nitrogen atmosphere4、Fe2(SO4)3And ammoniacal liquor,
Fe(NO3)2With Fe (NO3)3Mol ratio be 1:1, obtain bentonite and Fe after reaction3O4The mixture of nano-particle；
(2) dissolving of 100g carboxymethyl celluloses in deionized water, adds bentonite and Fe3O4The mixture of nano-particle
Stirred after 5g and 5g glutaraldehydes, ultrasonic disperse；
(3) mixed solution for obtaining step (2) is passed through spray dryer and prepares magnetic hydrogel microballoon.
Fe in step 33O4@TiO2The preparation method of nano-particle is：Take a certain amount of Fe3O4Magnetic fluid, uses sulphur acid for adjusting pH
It is worth for 7.0, plus 40mL polyethylene glycol, titanium sulfate concentration 0.10mol/L is mixed, urea concentration 0.15mol/L, and adjusts pH value of solution
For 3.0, controlling reaction temperature is 90 DEG C, mixing speed 200r/min, and after reaction 3.5h, synthetic product is used in combination through magnetic separation
Deionized water washing removes polyethylene glycol and other free ions, then with after washes of absolute alcohol 5 times, magnetic separation, product
Spontaneously dry at room temperature and produce Fe3O4@TiO2Nano-particle.
Embodiment 3
A kind of deep treatment method of dyeing waste water, this method comprises the following steps：
Step 1: media filtration：Dyeing waste water is by coagulating sedimentation, anaerobic hydrolysis and activated sludge aeration group technology
Discharge water after reason carries out media filtration, and filter media device, media particle are used as using quartz sand, activated carbon or flyash
0.8~1.2mm of particle diameter, 1~7d of backwash cycle；
Step 2: magnetic hydrogel microballoon is adsorbed：Water outlet after media filtration is passed through in adsorption reaction pond, is thrown by water per ton
Put 0.2kg magnetic hydrogel microballoons, using external magnetic field effect control the rate of adsorption, it is to be adsorbed after the completion of, by magnetic hydrogel
Microballoon is separated and recovered；
Step 3: light-catalyzed reaction：Dyeing waste water after magnetic hydrogel adsorption treatment is passed through photo catalysis reactor (figure
1st, shown in 2), wall is quartz glass, and inside reactor is uniformly arranged multilayer aperture 5cm quartzy sieve plate (1 in Fig. 1), sieve plate
It is upper that Fe is modified with by silane coupler3O4@TiO2Nano-particle, sunshine irradiation, mechanical agitation speed 50r/min, printing and dyeing are useless
Water under mechanical stirring can be through the Fe modified on sieve plate hole (4 in Fig. 2) and sieve plate3O4@TiO2Nano-particle is fully contacted,
Dye molecule is promoted to occur light-catalyzed reaction, reaction time 60min；
Step 4: Electrospun nano-fibers membrane filtration：The water outlet of light-catalyzed reaction is passed through polyvinyl alcohol/chitosan quiet
Electrospun nano-fibers film filter, during the number of plies of polyvinyl alcohol/chitosan Electrospun nano-fibers film is 5, dyeing waste water
Heavy metal ion by Electrospun nano-fibers film adsorb remove；
Step 5: milipore filter section：The water outlet of polyvinyl alcohol/chitosan Electrospun nano-fibers film filter passes through poly- inclined
PVF-perfluorinated sulfonic acid (PVDF-PFSA) nano fibrous membrane, the inorganic salts of removing more than 90%, recycle-water can be re-used for spinning
Knit printing and dyeing industry.
Wherein, in step 2 magnetic hydrogel microballoon by Fe3O4Nano-particle, bentonite, carboxymethyl cellulose and crosslinking agent
Composition, its preparation method is as follows：
(1) by bentonite ultrasonic disperse in deionized water, FeSO is added in a nitrogen atmosphere4、Fe2(SO4)3And ammoniacal liquor,
FeCl2·4H2O and FeCl3·H2O mol ratio is 1:2, obtain bentonite and Fe after reaction3O4The mixture of nano-particle；
(2) dissolving of 100g carboxymethyl celluloses in deionized water, adds bentonite and Fe3O4The mixture of nano-particle
Stirred after 8g and 7g epoxychloropropane, ultrasonic disperse；
(3) mixed solution for obtaining step (2) is passed through spray dryer and prepares magnetic hydrogel microballoon.
Fe in step 33O4@TiO2The preparation method of nano-particle is：Take a certain amount of Fe3O4Magnetic fluid, uses sulphur acid for adjusting pH
It is worth for 7.0, plus 40mL polyethylene glycol, titanium sulfate concentration 0.12mol/L is mixed, urea concentration 0.2mol/L, and adjusts pH value of solution
For 3.5, controlling reaction temperature is 100 DEG C, mixing speed 250r/min, and after reaction 4h, synthetic product is spent through magnetic separation
Ion water washing removes polyethylene glycol and other free ions, then with after washes of absolute alcohol 10 times, magnetic separation, product exists
Spontaneously dry at room temperature and produce Fe3O4@TiO2Nano-particle.
Pollutant load in embodiment 1~3 after dyeing waste water advanced treating is shown in Table 1.
Pollutant load after the dyeing waste water advanced treating of 1 embodiment of table 1~3
The pollutant load after the treatment of dyeing wastewater of 1 embodiment of table 1~3, the dyeing waste water depth that the present invention is provided
Processing method can significantly reduce the colourity of dyeing waste water, and clearance is more than 85%；Organics removal clearance is more than 90%, ammonia
Nitrogen removal efficiency is more than 99%, removal efficiency and is more than 98%, and the clearance of inorganic salts is more than 75%, and effluent quality meets weaving
Printing and dyeing industry water supply standard.
The advanced treatment method for printing and dyeing wastewater provided from embodiment 1~3, the present invention, is removed by media filtration first
Remove most suspensions；Most of impurity, organic matter and heavy metal ion are adsorbed by magnetic hydrogel microballoon again；Photocatalysis
Reactor uses quartz material reactor and sieve plate, can make full use of sunshine, by by TiO2It is coated on Fe3O4Surface, is carried
High TiO2Photocatalytic activity, can will most of be difficult the thorough light degradation of biodegradable organic dyestuff be water, carbon dioxide and
Inorganic salts, so as to thoroughly remove the organic matter in sewage so that COD and ammonia nitrogen removal frank are more than 90%, and the process need not
Additional ultraviolet source, reduces processing cost；The absorption of magnetic hydrogel microballoon can remove big multi-metal, along with polyethylene
The suction-operated of alcohol/chitosan Electrospun nano-fibers film, it is ensured that heavy metal removing rate meets textile printing and dyeing more than 80%
The heavy metal standard of industrial water；By media filtration and ultrafiltration, suspension 98% is removed, and Kynoar-perfluorinated sulfonic acid surpasses
Filter membrane performance is more excellent, can remove most of inorganic salts, total hardness of water is gone out after processing less than 200mg/L, electrical conductivity exists
Below 400us/cm.The characteristics of present invention is directed to dyeing waste water, is cooperateed with by each step, it is ensured that contained in dyeing waste water to suspend
Thing, organic matter, heavy metal, salt are removed thoroughly, obtain the recycle-water that may be directly applied to textile and dyeing industry production, the rate of recovery
80~90%.Advanced treatment method for printing and dyeing wastewater that the present invention is provided is simple to operate, efficiency high, non-secondary pollution, with low cost,
Realize dyeing waste water zero-emission.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, ability
Other modifications or equivalent substitution that domain those of ordinary skill is made to technical scheme, without departing from skill of the present invention
The spirit and scope of art scheme, all should cover among scope of the presently claimed invention.
Claims (4)
1. a kind of deep treatment method of dyeing waste water, it is characterised in that this method comprises the following steps：
Step 1: media filtration：Dyeing waste water is after the processing of coagulating sedimentation, anaerobic hydrolysis and activated sludge aeration group technology
Discharge water carry out media filtration, filter media device, media particle particle diameter are used as using quartz sand, activated carbon or flyash
0.8 ~ 1.2 mm, the d of backwash cycle 1 ~ 7；
Step 2: magnetic hydrogel microballoon is adsorbed：Water outlet after media filtration is passed through in adsorption reaction pond, adds a certain amount of magnetic
Property hydrogel microsphere, utilize external magnetic field effect control the rate of adsorption and magnetic hydrogel microballoon separation and recovery；
Step 3: light-catalyzed reaction：Dyeing waste water after magnetic hydrogel adsorption treatment is passed through photo catalysis reactor, and wall is
Quartz glass, inside reactor is uniformly arranged the cm of multilayer aperture 5 quartzy sieve plate, is modified with sieve plate by silane coupler
Fe3O4@TiO2Nano-particle, sunshine or simulated solar light irradiation, the r/min of mechanical agitation speed 30 ~ 50, the reaction time 20 ~
60 min；
Step 4: Electrospun nano-fibers membrane filtration：The water outlet of light-catalyzed reaction is passed through polyvinyl alcohol/chitosan Static Spinning
Heavy metal ion in silk nanofiber film filter, dyeing waste water is by polyvinyl alcohol/chitosan Electrospun nano-fibers film
Absorption is removed；
Step 5: milipore filter section：The water outlet of polyvinyl alcohol/chitosan Electrospun nano-fibers film filter passes through polyvinylidene fluoride
Alkene-perfluorinated sulfonic acid（PVDF-PFSA）Nano fibrous membrane, the inorganic salts of removing more than 90%, recycle-water can be re-used for textile printing and dyeing
Industry.
2. a kind of deep treatment method of dyeing waste water according to claim 1, it is characterised in that magnetic water in step 2
Gel micro-ball is by Fe3O4Nano-particle, bentonite, carboxymethyl cellulose and crosslinking agent composition, its preparation method are as follows：
（1）By bentonite ultrasonic disperse in deionized water, Fe is added under blanket of nitrogen2+And Fe3+Molysite and alkaline matter, after reaction
Obtain bentonite and Fe3O4The mixture of nano-particle；
（2）By carboxymethyl cellulose dissolving in deionized water, bentonite and Fe are added3O4The mixture of nano-particle and friendship
Stirred after joining agent, ultrasonic disperse；
（3）By step（2）Obtained mixed solution is passed through spray dryer and prepares magnetic hydrogel microballoon.
3. a kind of deep treatment method of dyeing waste water according to claim 1, it is characterised in that Fe in step 33O4@
TiO2Nano-particle is TiO2It is coated on Fe3O4The composite nanoparticle on surface, its preparation method is：Take a certain amount of Fe3O4Magnetic current
Body, is 7.0 with sulphur acid for adjusting pH value, plus a certain amount of polyethylene glycol, and a certain amount of titanium sulfate is mixed, then adds a certain amount of urea, and is adjusted
Solution ph is saved, controlling reaction temperature adjusts mixing speed, after reaction certain time, synthetic product is spent through magnetic separation
Ion water washing removes polyethylene glycol and other free ions, then with washes of absolute alcohol for several times after, magnetic separation, product exists
Spontaneously dry at room temperature and produce Fe3O4@TiO2Nano-particle.
4. a kind of deep treatment method of dyeing waste water according to claim 1, it is characterised in that polyethylene in step 4
The number of plies of polyvinyl alcohol/chitosan Electrospun nano-fibers film is 3 in alcohol/chitosan Electrospun nano-fibers film filter
~5。
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| CN108311115A (en) * | 2018-01-30 | 2018-07-24 | 中南林业科技大学 | A kind of chitosan magnetic load TiO2The preparation and its application of composite material |
| CN108786487A (en) * | 2018-07-06 | 2018-11-13 | 武汉科技大学 | A kind of preparation and its application of functional form ultrafiltration membrane |
| CN109250849A (en) * | 2018-09-22 | 2019-01-22 | 福建凤竹纺织科技股份有限公司 | A kind of processing method of textile waste |
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| CN111517523A (en) * | 2020-05-09 | 2020-08-11 | 闫娟 | Printing and dyeing wastewater treatment method |
| CN111560288A (en) * | 2020-06-09 | 2020-08-21 | 河北工业大学 | Water-soluble waste cutting fluid treatment method and treatment system applying same |
| CN116143227A (en) * | 2023-04-19 | 2023-05-23 | 新乡学院 | Method for treating low-concentration heavy metal pollution wastewater by combining adsorption and ultrafiltration |
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