CN105692952B - The processing method of textile waste - Google Patents
The processing method of textile waste Download PDFInfo
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- CN105692952B CN105692952B CN201610046197.1A CN201610046197A CN105692952B CN 105692952 B CN105692952 B CN 105692952B CN 201610046197 A CN201610046197 A CN 201610046197A CN 105692952 B CN105692952 B CN 105692952B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- C—CHEMISTRY; METALLURGY
- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to a kind of processing methods of the textile waste of textile technology field, the treating method comprises following steps：Step 1 takes textile waste, and pH value of adjusting is 78, filtering；It is 34 to adjust pH, is aerated, filtering；Waste water is discharged into oxidation tank by step 2, adds in strong oxidizer, and aeration when placement 4 12 is small, filters；Waste water is discharged into the redox tank equipped with iron filings by step 3, and it is 45 to adjust pH, is aerated, filtering；Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；The second flocculation tank is discharged into, second is carried out and flocculates, filtering；Step 5 adsorbs waste water through sorbing material again, filters, discharge.The method of the present invention can effectively handle textile waste, there is excellent treatment effect for the textile waste for polluting getting worse now, and after process textile waste using the present invention, obvious processing effect is significantly better than the discharge standard of national regulation.
Description
Technical field
The present invention relates to textile technology fields, and in particular to a kind of processing method of textile waste.
Background technology
There are plurality of textile printing and dyeing enterprises in China, and dyeing waste water is processing cotton, fiber crops, chemical fibre and its blended production
The waste water of printing and dyeing mill's discharge based on product, wastewater in textile printing and dyeing industry colourity is deep, alkalescence is big, organic pollution content is high, water quality
Variation is big, constituent is complicated；In waste water containing on textile fabric dirt, grease, in salt and process it is additional
The pollutants such as various slurries, dyestuff, surfactant, auxiliary agent, soda acid, COD the and BOD contents in waste water are high；The colourity of waste water
Etc. indexs generally far above discharge standard, discharge capacity is big, and concentration is high, and it is very big to deal with difficulty for difficult degradation.
The process of textile printing and dyeing processing can all discharge waste water, pretreatment stage (including singing, desizing, boiling-off, bleaching, silk
The processes such as light) discharge desized wastewater, boiled-off waste water, bleaching effluent and mercerizing waste water, dyeing process discharge dyeing waste-water, printer
Sequence discharges printing waste water and soap lye waste water, and arranging process discharge arranges waste water.When dyeing and printing process and the kinds of fibers of use and add
After work technique change, waste water quality will have large change.Such as when in waste water containing terylene artificial silk dyeing process in the alkali that generates
During decrement waste water, the CODCr of waste water will be increased to 2000~more than 3000mg/L, and BOD5 increases to more than 800mg/L, and pH value reaches
11.5-12, and waste water quality increases with the addition of terylene artificial silk printing and dyeing alkali decrement waste water and is deteriorated；When the alkali of addition subtracts
When the amount of amount CODCr in wastewater is more than the amount 20% of CODCr in wastewater, biochemical treatment would become hard to adapt to.
The raising of rise and the finishing process in printing and dye-ing requirement of Silk with the development of chemical fiber fabrics, it is PVA slurries, artificial
The hardly degraded organic substances such as silk alkaline hydrolysis object, new dye, auxiliary agent largely enter textile printing and dyeing wastewater, to traditional waste water treatment process
Serious challenge is formed, COD concentration also rapidly rises to 3000~5000 milligrams per liter from original hundreds of milligrams per liter, and it is difficult to administer
Degree further increase；But also common biological treatment system CODcr removal rates drop to 50% or so from 70%, even more
Low, the traditional chemical precipitation method and Bubble-floating Method are only 30% or so to textile printing and dyeing wastewater CODcr removal rates, traditional treatment method by
Serious challenge is arrived.
The dyeing and printing process such as mercerising is blue, mercerising is black, spy is dark blue, spy is pitch black, this kind of technique are had developed according to overseas market
Largely using sulfur dye, printing and dyeing assistant vulcanized sodium etc., causing must dosing containing substantial amounts of sulfide, such waste water in waste water
Then pretreatment carries out seriation processing again, ability stably reaching standard discharges, and the improvement of waste water is more difficult and complicated.
Textile printing and dyeing wastewater processing can also generate the peculiar smell such as hydrogen sulfide, methyl mercaptan, methyl sulfide, ammonia in processing procedure
Gas, these gas with foreign flavor are because of its polluting property, an important factor for belonging to industrial foul gas, be also haze formation, but for a long time with
Come, the multiple processing regarded to waste water, does not pay attention to the improvement to gas with foreign flavor in processing procedure in production practices.
At present, textile printing and dyeing wastewater treatment technology has physico-chemical process, biochemical process, electrochemical process, chemical method and photochemical method etc.,
Wherein based on biochemical process, some is also connected in series by chemical method；Though various treatment process respectively have textile printing and dyeing wastewater processing
Characteristic, but there is also certain limitations.According to the water quality characteristics of textile printing and dyeing wastewater, need to solve to print during the treatment
Contaminate the extremely slow organic matter of basicity, not easily biological-degradable or biodegradation rate, coloring matter and the noxious material of waste water
Etc. problems；Processing method need to be aided with necessary pretreatment and physical chemistry depth logos based on biological treatment.In advance
Processing mainly has：Adjust (water quality and quantity homogenizing), neutralization, chrome wastewater processing, the dense foot water pretreatment of dyestuff.Common materializing strategy
Technique is mainly coagulant sedimentation and mixed condensed gas flotation process.In addition, electrolysis, biological activated carbon method and chemical oxidization method etc. are sometimes
For in treatment of dyeing wastewater.Biological treatment is mainly aerobic method, the active sludge that uses at present, biological contact oxidation
Change method, biological rotating disk and tower biological filter etc..To improve the biodegradability of waste water, anoxic, anaerobic technique have also been applied to print
It contaminates in wastewater treatment.The treatment technology of existing textile printing and dyeing wastewater is relatively simple, and cotton industry waste water is general after biological treatment
Discharge standard is not achieved, it is impossible to which the chemical processing device for different types of effectively also connecting after biological treatment device is made further
It is handled.
Through to the literature search of prior art discovery, Chinese invention patent 200910136664.X (in July, 2011 day for announcing
20 days) a kind of processing method of wastewater in textile printing and dyeing industry is disclosed, the method includes the steps as follows：A dyes high chroma
Stoste is pre-processed：By high chroma dyeing stoste injection color reaction pond, flocculant FeCl is then added3, dosage is
200-400mg/L high chromas dye stoste, residence time 5-7h；B homogenize process：The product of step A, other waste water are given up
Liquid and the outer organic wastewater that draws put into regulating reservoir, residence time 7-9h；C biochemical treatments：The water outlet of regulating reservoir sequentially enters hydrolysis
Acidification pool, aerobic tank and sedimentation basin, sewage are 45-50h in this stage residence time；Flocculation treatment after D：Water outlet to step C
In add flocculant FeSO4Flocculation treatment after progress；After processing, effluent quality meets GB4287-92《Textile dyeing and finishing industry water
Pollutant emission standard》The I grade standards of table 3.But with the increasingly complexity of present textile waste component, intractability increases,
Method described in patent can not meet the needs of present produce reality.
Chinese invention patent 200510092957.8 (publication date on May 13rd, 2015) discloses a kind of textile printing and dyeing wastewater
Processing and the technique of reuse, include the following steps：Pre-treatment, regulating reservoir enters level-one air supporting by elevator pump in textile waste
The impurity such as the lint in waste water by the reflux ratio and dissolved-air pressure that adjust flotation tank are further removed, and increase waste water by pond
In dissolved oxygen content；Biochemical treatment is carried out afterwards, using domestication, the carrier type thermopnore composite membrane mud reactor pair after biofilm
Waste water after level-one air-flotation process carries out the aerobic decomposition of organic matter, and by stirring, aeration makes the dissolved oxygen in waste water be maintained at conjunction
Suitable level makes the organic matter in waste water obtain most degradation during this, subsequently into activated sludge tank, further
Aerobic decomposition is carried out to organic matter, waste water is most introduced sedimentation basin after biological decomposition afterwards, the activity that wastewater sedimentation is got off is dirty
Mud biology is back in CBR reaction tanks, and sedimentation basin water outlet reaches discharge standard；Post processing, second pond supernatant water outlet to two level
Flotation tank by adjusting the reflux ratio and dissolved-air pressure of flotation tank, further removes useless impurities in water and suspended particulate substance and glue
Body ensures the water quality index of wastewater effluent, then again introduces waste water in ozone oxidation pond, will by the strong oxidizing property of ozone
The decoloration performance that the organic matter explained further degrades and utilizes ozone is difficult in biological treatment process, ensures the color of water outlet
Degree.The patent can handle pollution concentration height, and colourity is high, the unstable textile printing and dyeing wastewater of water quality.But due to current weaving
Dyeing waste water ingredient is increasingly complicated, therefore the method for this patent is applied to be difficult to obtain preferable treatment effect when being handled.
The content of the invention
In view of drawbacks described above of the prior art or deficiency, it is an object of the invention to provide a kind of processing of textile waste
Method.The method of the present invention can effectively handle textile waste.
The present invention is realized by the following method, the present invention relates to a kind of processing method of textile waste, including such as
Lower step：
Step 1 takes textile waste, and adjustment pH value is 7-8, is filtered；Adjusting pH is 3-4, is aerated, filtering；
Waste water is discharged into oxidation tank by step 2, adds in strong oxidizer, and aeration when placement 4-12 is small, filters；
Waste water is discharged into the redox tank equipped with iron filings by step 3, and adjusting pH is 4-5, is aerated, filtering；
Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；It is discharged into the second flocculation tank, carries out the
Secondary flocculation, filtering；
Step 5 adsorbs waste water through sorbing material again, filters, discharge.
Preferably, described be filtered into is filtered using nonwoven fabric filter or quartz sand.
Preferably, the time of the aeration is 50-100 minutes.
Preferably, in step 2, the strong oxidizer includes each component of following parts by weight：3-6 parts of potassium permanganate, sulphur
Sour aluminium 20-40 parts, 30-40 parts of ferric sulfate, 20-40 parts of aluminium polychloride, 10-20 parts of sodium chlorate, 10-15 parts of ammonium peroxydisulfate,
1-20 parts of sodium bismuthate.
Preferably, in step 3, the grain size of the iron filings is 3-6mm.
Preferably, in step 4, the first time flocculation includes the following steps：It adds in by FeSO4And FeCl3The wadding of composition
Solidifying agent, FeSO4Input amount is 60-80mg/L, FeCl3Input amount is 130-180mg/L, when the residence time is 4-8 small.
Preferably, in step 4, second of flocculation includes the following steps：Add in flocculant, input amount 200-
290mg/L, when the residence time is 4-8 small；The flocculant includes each component of following weight fraction：Polyaluminium sulfate 10-20
Part, 2-5 parts of sodium aluminate, 7-11 parts of diatomite, 4-9 parts of borax, 10-15 parts of aluminium chloride, 12-18 parts of bodied ferric sulfate.
Preferably, in step 5, the sorbing material includes each component of following weight fraction：Active bentonite 30-40
Part, 60-70 parts of activated attapulgite, 1-5 parts of bodied ferric sulfate, 1-4 parts of polyacrylamide, 30-50 parts of calcium oxide, sulfuric acid
12-18 parts of aluminium potassium, 2-4 parts of diatomite, 20-26 parts of activated carbon.
Preferably, in step 5, the sorbing material includes each component of following weight fraction：36 parts of active bentonite,
65 parts of activated attapulgite, 3 parts of bodied ferric sulfate, 3 parts of polyacrylamide, 40 parts of calcium oxide, 16 parts of alum, diatom
3 parts of soil, 23 parts of activated carbon.
Compared with prior art, the present invention has following advantageous effect：The method of the present invention can effectively handle spinning
Waste water is knitted, there is excellent treatment effect for the textile waste for polluting getting worse now.Process using the present invention
After textile waste, obvious processing effect is better than the prior art, and is significantly better than the discharge standard of national regulation.
Specific embodiment
The application is described in further detail with reference to embodiment.It is understood that tool described herein
Body embodiment is used only for explaining related invention rather than the restriction to the invention.It should be noted that in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.
Embodiment 1
The present embodiment is related to a kind of processing method of textile waste, includes the following steps：
Step 1 takes textile waste, and pH value of adjusting is 7, is filtered using nonwoven fabric filter；It is 3 to adjust pH, is aerated 50 points
Clock is filtered using nonwoven fabric filter；
Waste water is discharged into oxidation tank, adds in strong oxidizer, be aerated 50 minutes, when placement 4 is small, using quartz sand by step 2
Filtering；The strong oxidizer includes each component of following parts by weight：3 parts of potassium permanganate, 20 parts of aluminum sulfate, 30 parts of ferric sulfate,
20 parts of aluminium polychloride, 10 parts of sodium chlorate, 10 parts of ammonium peroxydisulfate, 1 part of sodium bismuthate；By the dosage of every cubic metre of input 0.5kg
It is used；
Waste water is discharged into the redox tank equipped with iron filings by step 3, and it is 4 to adjust pH, is aerated 50 minutes, using quartz sand
Filtering；The grain size of the iron filings is 3-4mm；
Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；It is discharged into the second flocculation tank, carries out the
Secondary flocculation, filtering；The first time flocculation includes the following steps：It adds in by FeSO4And FeCl3The flocculant of composition, FeSO4
Input amount is 60mg/L, FeCl3Input amount is 130mg/L, when the residence time is 8 small；Second of flocculation includes following step
Suddenly：Flocculant, input amount 200mg/L are added in, when the residence time is 4 small；The flocculant includes each of following weight fraction
Component：10 parts of polyaluminium sulfate, 2 parts of sodium aluminate, 7 parts of diatomite, 4 parts of borax, 10 parts of aluminium chloride, 12 parts of bodied ferric sulfate；
Step 5 is adsorbed waste water, quartz sand filtration through sorbing material again, discharge；The sorbing material is included such as
The each component of lower weight fraction：30 parts of active bentonite, 60 parts of activated attapulgite, 1 part of bodied ferric sulfate, polyacrylamide
1 part of amine, 30 parts of calcium oxide, 12 parts of alum, 2 parts of diatomite, 20 parts of activated carbon.
Implementation result：The textile waste of certain textile printing and dyeing factory is bottle green, and smell is pungent, and has stink, pH 8.5, COD
For 295mg/L, colourity is 30 times；C0D=45mg/L after processing, effluent color dilution are 2 times, pH 7；COD removal rates reach
84.7%, chroma removal rate reaches 93.3%.In the prior art, after processing, it is left that COD removal rates only reach 75% to similar waste water
The right side, speed removal rate is 70% or so；National textile dyeing and finishing emission of industrial pollutants standard (GB427-82) regulation, COD reach
100mg/L, colourity is at 40 times, pH 6-9；The obvious processing effect of the present embodiment is better than the prior art, and is significantly better than country
Defined discharge standard.
Embodiment 2
The present embodiment is related to a kind of processing method of textile waste, includes the following steps：
Step 1 takes textile waste, and pH value of adjusting is 8, is filtered using nonwoven fabric filter；It is 4 to adjust pH, is aerated 80 points
Clock is filtered using nonwoven fabric filter；
Waste water is discharged into oxidation tank, adds in strong oxidizer, be aerated 80 minutes, when placement 8 is small, using quartz sand by step 2
Filtering；The strong oxidizer includes each component of following parts by weight：5 parts of potassium permanganate, 30 parts of aluminum sulfate, 35 parts of ferric sulfate,
30 parts of aluminium polychloride, 15 parts of sodium chlorate, 13 parts of ammonium peroxydisulfate, 15 parts of sodium bismuthate；By the dosage of every cubic metre of input 0.7kg
It is used；
Waste water is discharged into the redox tank equipped with iron filings by step 3, and it is 5 to adjust pH, is aerated 90 minutes, using quartz sand
Filtering；The grain size of the iron filings is 4-5mm；
Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；It is discharged into the second flocculation tank, carries out the
Secondary flocculation, filtering；The first time flocculation includes the following steps：It adds in by FeSO4And FeCl3The flocculant of composition, FeSO4
Input amount is 70mg/L, FeCl3Input amount is 150mg/L, when the residence time is 6 small；Second of flocculation includes following step
Suddenly：Flocculant, input amount 260mg/L are added in, when the residence time is 6 small；The flocculant includes each of following weight fraction
Component：15 parts of polyaluminium sulfate, 3 parts of sodium aluminate, 9 parts of diatomite, 6 parts of borax, 14 parts of aluminium chloride, 15 parts of bodied ferric sulfate；
Step 5 is adsorbed waste water, quartz sand filtration through sorbing material again, discharge；The sorbing material is included such as
The each component of lower weight fraction：36 parts of active bentonite, 65 parts of activated attapulgite, 3 parts of bodied ferric sulfate, polyacrylamide
3 parts of amine, 40 parts of calcium oxide, 16 parts of alum, 3 parts of diatomite, 23 parts of activated carbon.
Implementation result：The textile waste of certain textile printing and dyeing factory is royal purple, and smell is pungent, and has stink, pH 9, COD
For 13500mg/L, colourity is 1400 times；C0D=1200mg/L after processing, effluent color dilution are 30 times；COD removal rates reach
91.1%, chroma removal rate reaches 97.9%.
Embodiment 3
The present embodiment is related to a kind of processing method of textile waste, includes the following steps：
Step 1 takes textile waste, and pH value of adjusting is 8, is filtered using nonwoven fabric filter；It is 4 to adjust pH, aeration 100
Minute, using quartz sand filtration；
Waste water is discharged into oxidation tank, adds in strong oxidizer, be aerated 80 minutes, when placement 12 is small, using quartz sand by step 2
Filtering；The strong oxidizer includes each component of following parts by weight：6 parts of potassium permanganate, 40 parts of aluminum sulfate, 40 parts of ferric sulfate,
40 parts of aluminium polychloride, 20 parts of sodium chlorate, 15 parts of ammonium peroxydisulfate, 20 parts of sodium bismuthate；By the dosage of every cubic metre of input 0.8kg
It is used；
Waste water is discharged into the redox tank equipped with iron filings by step 3, and it is 4 to adjust pH, is aerated 100 minutes, using quartz
Sand filters；The grain size of the iron filings is 5-6mm；
Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；It is discharged into the second flocculation tank, carries out the
Secondary flocculation, filtering；The first time flocculation includes the following steps：It adds in by FeSO4And FeCl3The flocculant of composition, FeSO4
Input amount is 80mg/L, FeCl3Input amount is 180mg/L, when the residence time is 8 small；Second of flocculation includes following step
Suddenly：Flocculant, input amount 290mg/L are added in, when the residence time is 8 small；The flocculant includes each of following weight fraction
Component：20 parts of polyaluminium sulfate, 5 parts of sodium aluminate, 11 parts of diatomite, 9 parts of borax, 15 parts of aluminium chloride, 18 parts of bodied ferric sulfate；
Step 5 is adsorbed waste water, quartz sand filtration through sorbing material again, discharge；The sorbing material is included such as
The each component of lower weight fraction：40 parts of active bentonite, 70 parts of activated attapulgite, 5 parts of bodied ferric sulfate, polyacrylamide
4 parts of amine, 50 parts of calcium oxide, 18 parts of alum, 4 parts of diatomite, 26 parts of activated carbon.
Implementation result：The textile waste of certain textile printing and dyeing factory is glassy yellow, belongs to serious pollution sewage, smell is pungent, and has
Stink, pH 4, COD 50000mg/L, colourity are 600 times；C0D=8000mg/L after processing, effluent color dilution are 20 times；COD
Removal rate reaches 84%, and chroma removal rate reaches 96.7%.
Applicant of the present invention by substantial amounts of research, have been surprisingly found that the technical solution of the present invention with purpose less than skill
Art effect.The step of processing method of the present invention is to processing, the factors such as parameter have carried out specific combination, and then realize excellent
Treatment effect.In the processing method of the present invention, textile waste is taken first, is filtered after adjustment pH；Aeration filtration after adjusting again；
Such processing can effectively remove sulfide and basic-dyeable fibre in waste water, and good condition is provided for subsequent processing；
In the step of the present invention, waste water is discharged into oxidation tank, adds in strong oxidizer, aeration when placement 4-12 is small, filters；
The processing step can further effectively remove remaining sulfide, soluble dye and the dye of positive ion in waste water；At tradition
In science and engineering skill, can not have been met using single-oxidizer at present production in textile waste processing requirement, the selection of oxidant and
Dosage is limited by the requirement of the pollution level and subsequent processing steps of waste water, difficult if the selection of oxidant and dosage are inappropriate
Impacted with the waste water for effectively handling serious pollution or to subsequent processing steps, if the oxidability of oxidant it is too strong or
Dosage is excessive, and the processing procedure of redox tank can be seriously affected in subsequent processing, causes the effect of subsequently removal azo dyes
Fruit weakens significantly, while is unfavorable for subsequent flocculation, and can cause secondary pollution containing excessive strong oxidizer in water outlet, drops
The low treatment effect of sewage.Present invention employs the strong oxidizer of compounding, which includes potassium permanganate, aluminum sulfate, sulphur
Sour iron, aluminium polychloride, sodium chlorate, ammonium peroxydisulfate, sodium bismuthate；By the dosage of every cubic metre of input 0.5-0.8kg into enforcement
With, can not only effectively handle at present production present in severe textile waste, remove sulphide removal, soluble dye and cation
Dyestuff excellent effect, and significantly affected to will not subsequently be generated using the redox tank processing of iron filings, it is ensured that follow-up step
The good result of rapid removal azo dyes, and remaining oxidant containing less, will not cause secondary pollution in water outlet.
In step of the present invention, waste water is discharged into the redox tank equipped with iron filings, adjusting pH is 4-5, is aerated, filtering；This
Step can remove remaining azo dyes；The selection of strong oxidizer in the treatment effect and previous step of the present invention and dosage simultaneously
There is close influence relation, if strong oxidizer selection or dosage are improper in previous step processing, this step can be caused to remove azo
The effect of dyestuff is very poor.
In the step of the present invention, two step flocculation process are creatively employed, flocculated effect has been obviously improved, has significantly carried
The treatment effect of waste water is risen.Specifically, two step flocculation process include：Waste water is discharged into the first flocculation tank, is carried out for the first time
Flocculation, filtering；The second flocculation tank is discharged into, second is carried out and flocculates, filtering；When the present invention flocculate for the first time, using FeSO4
And FeCl3Compounding forms flocculant, effectively promotes flocculating effect；Meanwhile the present invention carries out second and flocculates, used flocculation
Agent is complex composition.Decoloration is thoroughly quick, and flco consolidation, settling velocity is fast, and flocculation adsorption dyestuff effect is good, is particularly suitable for
The flocculation treatment of the coloured sewage of severe.Second of flocculation of the present invention is the flocculant of compounding, including polyaluminium sulfate, aluminic acid
Sodium, diatomite, borax, aluminium chloride, bodied ferric sulfate have close between flocculated processing and second of flocculated processing for the first time
The species selection of the relation cut, especially flocculant, dosage and processing time.Preferably embodiment is flocculated for the first time
Include the following steps：It adds in by FeSO4And FeCl3The flocculant of composition, when the residence time is 4-8 small, FeSO4Input amount is 60-
80mg/L, FeCl3Input amount is 130-180mg/L.Second of flocculation includes the following steps：Flocculant is added in, input amount is
200-290mg/L, when the residence time is 4-8 small；The flocculant includes each component of following weight fraction：Polyaluminium sulfate
10-20 parts, 2-5 parts of sodium aluminate, 7-11 parts of diatomite, 4-9 parts of borax, 10-15 parts of aluminium chloride, 12-18 parts of bodied ferric sulfate.
In the preferred embodiment, it will not be clashed between flocculant used in flocculation twice, flocculating effect is very excellent, than
Traditional flocculation treatment effect at least promotes 35% or so, and flco very consolidation, settling rate promotes 15% compared with traditional handicraft
More than, for leather, the serious pollutions waste water such as printing and dyeing has excellent flocculating effect.
In the processing step of the present invention, finally waste water through sorbing material is adsorbed again, is filtered, discharge.Traditional suction
Subsidiary formula formula, it is difficult to successfully manage the textile waste increasingly polluted now, the present invention can be promoted effectively using composite adsorbing material
The treatment effect of absorption compared with traditional adsorption treatment, is such as individually adsorbed using activated carbon, and the present invention uses compound suction
Enclosure material, the effect of absorption can promote 40%, have significant effect, and the water outlet color after adsorption treatment is limpid, free from extraneous odour,
And there is very excellent treatment effect in reply serious pollution prevention waste water.As preferred embodiment, the present invention uses
Following composite adsorbing material, the composite adsorbing material include each component of following weight fraction：30-40 parts of active bentonite, it is living
60-70 parts of Concave-convex clay rod of property, 1-5 parts of bodied ferric sulfate, 1-4 parts of polyacrylamide, 30-50 parts of calcium oxide, alum
12-18 parts, 2-4 parts of diatomite, 20-26 parts of activated carbon.The composite adsorbing material can effectively adsorb serious pollution textile waste
Various substances, effectively promote the color of processing water outlet, reduce peculiar smell, the treatment effect of sewage is greatly improved, even if severe
Textile waste is polluted, can also be met such as GB4287-92《Textile dyeing and finishing industrial water pollution object discharge standard》, national textile dyeing and finishing work
The indexs such as industry pollutant emission standard (GB427-82).
In conclusion the method for the present invention can effectively handle textile waste, for polluting the spinning of getting worse now
Knitting waste water has excellent treatment effect.After process textile waste using the present invention, obvious processing effect is better than existing
Technology is significantly better than the discharge standard of national regulation.
The preferred embodiment and the explanation to institute's application technology principle that above description is only the application.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology that the particular combination of above-mentioned technical characteristic forms
Scheme, while should also cover in the case where not departing from the inventive concept, it is carried out by above-mentioned technical characteristic or its equivalent feature
The other technical solutions for being combined and being formed.Such as features described above has similar work(with (but not limited to) disclosed herein
The technical solution that the technical characteristic of energy is replaced mutually and formed.
Claims (5)
1. a kind of processing method of textile waste, which is characterized in that the treating method comprises following steps：
Step 1 takes textile waste, and adjustment pH value is 7-8, is filtered；Adjusting pH is 3-4, is aerated, filtering；
Waste water is discharged into oxidation tank by step 2, adds in strong oxidizer, and aeration when placement 4-12 is small, filters, the strong oxidizer
Include each component of following parts by weight：Potassium permanganate 3-6
Part, 20-40 parts of aluminum sulfate, 30-40 parts of ferric sulfate, 20-40 parts of aluminium polychloride, 10-20 parts of sodium chlorate, ammonium peroxydisulfate
10-15 parts, 1-20 parts of sodium bismuthate；
Waste water is discharged into the redox tank equipped with iron filings by step 3, and adjusting pH is 4-5, is aerated, filtering；
Waste water is discharged into the first flocculation tank by step 4, carries out first time flocculation, filtering；The second flocculation tank is discharged into, is carried out second
Flocculation, filtering, the first time flocculation include the following steps：Add in the flocculant being made of FeSO4 and FeCl3, FeSO4 inputs
It measures as 60-80mg/L,
FeCl3 input amounts are 130-180mg/L, and when the residence time is 4-8 small, second of flocculation includes the following steps：Add
Enter flocculant, input amount 200-290mg/L, when the residence time is 4-8 small；The flocculant includes each of following weight fraction
Component：10-20 parts of polyaluminium sulfate, 2-5 parts of sodium aluminate, 7-11 parts of diatomite, 4-9 parts of borax, 10-15 parts of aluminium chloride, polymerization
12-18 parts of ferric sulfate；
Step 5 adsorbs waste water through sorbing material again, filters, and discharge, the sorbing material includes following weight fraction
Each component：30-40 parts of active bentonite, 60-70 parts of activated attapulgite, 1-5 parts of bodied ferric sulfate, polyacrylamide
1-4 parts, 30-50 parts of calcium oxide, 12-18 parts of alum, 2-4 parts of diatomite, 20-26 parts of activated carbon.
2. the processing method of textile waste according to claim 1, which is characterized in that described to be filtered into using non-woven fabrics mistake
Filter or quartz sand are filtered.
3. the processing method of textile waste according to claim 1, which is characterized in that the time of the aeration is 50-100
Minute.
4. the processing method of textile waste according to claim 1, which is characterized in that in step 3, the grain of the iron filings
Footpath is 3-6mm.
5. the processing method of textile waste according to claim 1, which is characterized in that in step 5, the sorbing material
Include each component of following weight fraction：36 parts of active bentonite, 65 parts of activated attapulgite, 3 parts of bodied ferric sulfate gather
3 parts of acrylamide, 40 parts of calcium oxide, 16 parts of alum, 3 parts of diatomite, 23 parts of activated carbon.
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| CN107162266A (en) * | 2017-06-14 | 2017-09-15 | 常州市五洲环保科技有限公司 | The method that textile waste recycling prepares submicron order calcium base rigid material |
| CN107129074A (en) * | 2017-06-23 | 2017-09-05 | 河海大学 | A kind of synchronous method for removing the pollutant such as silicon, iron, manganese in underground water |
| DE102018005943A1 (en) * | 2018-07-19 | 2020-01-23 | ERAGON R&D GmbH | Device and method for cleaning waste water contaminated with electrolytes and dyes |
| CN109678283A (en) * | 2018-12-07 | 2019-04-26 | 浙江染化宝检测服务有限公司 | A kind of technique for the treatment of textile dyeing waste water |
| CN109534547B (en) * | 2018-12-14 | 2021-08-31 | 绍兴布泰纺织印染有限公司 | Printing and dyeing wastewater treatment process |
| CN110028179A (en) * | 2019-04-22 | 2019-07-19 | 广东溢达纺织有限公司 | Mercerising device |
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