CN107265750A - A kind of cotton dyeing process spent water reclaiming system - Google Patents
A kind of cotton dyeing process spent water reclaiming system Download PDFInfo
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- CN107265750A CN107265750A CN201710196629.1A CN201710196629A CN107265750A CN 107265750 A CN107265750 A CN 107265750A CN 201710196629 A CN201710196629 A CN 201710196629A CN 107265750 A CN107265750 A CN 107265750A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 176
- 238000004043 dyeing Methods 0.000 title claims abstract description 133
- 229920000742 Cotton Polymers 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000010865 sewage Substances 0.000 claims abstract description 83
- 238000005406 washing Methods 0.000 claims abstract description 80
- 238000012545 processing Methods 0.000 claims abstract description 66
- 238000001728 nano-filtration Methods 0.000 claims abstract description 53
- 238000004061 bleaching Methods 0.000 claims abstract description 41
- 238000004042 decolorization Methods 0.000 claims abstract description 25
- 239000000344 soap Substances 0.000 claims abstract description 10
- 238000009991 scouring Methods 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 40
- 239000000975 dye Substances 0.000 claims description 30
- 239000000047 product Substances 0.000 claims description 29
- 239000012530 fluid Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 15
- 239000012528 membrane Substances 0.000 claims description 15
- 239000012141 concentrate Substances 0.000 claims description 13
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 10
- 238000004821 distillation Methods 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 4
- 239000002910 solid waste Substances 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 241000219146 Gossypium Species 0.000 description 45
- 150000003839 salts Chemical class 0.000 description 14
- 210000002268 wool Anatomy 0.000 description 11
- 239000004753 textile Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000985 reactive dye Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000004045 reactive dyeing Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000012279 drainage procedure Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000002759 woven fabric Substances 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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by 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
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- 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
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides a kind of cotton dyeing process spent water reclaiming system, is recycled for the sewage to cotton product dyeing, the cotton product dyeing includes：Scouring and bleaching processing, washing of scouringing and bleaching, dyeing processing, dyeing washing for the first time, second dyeing washing, soap, and wash at least one times.The Sewage Reuse System includes：One fresh pond, a high temperature nanofiltration system, a decolorization system, a concentration systems and a low temperature nanofiltration system.
Description
Technical field
The present invention relates to field of waste water treatment, the efficient extraction of more particularly to a kind of reactive dyeing raffinate decolourizes to be
System.
Background technology
Cotton products are comfortable and easy to wear, and warmth retention property is high, and outward appearance is beautiful, and wearability is good.Cotton can be by cultivating, great Pi Sheng
Production, annual harvest, is exactly the most frequently used textile material since ancient times.The textile mistake that cotton can take from picking to being made
Cheng Zhong, it is necessary to by the chemical treatment such as dyeing, remove the various impurity that bring during spontaneous growth, catch it is various or gorgeous,
Or the various required colors such as plain or sedate, and with good fastness.Therefore in thousands of textile printing and dyeing enterprises
There is considerable company to possess cotton dyeing workshop.In the sewage discharge statistics of entire society, the discharge capacity of textile industry accounts for the
Two, and the sewage discharge then printed and dyed in textile industry accounts for the 80% of total emission volumn, therefore the sewage discharge of reduction cotton dyeing will
Effectively mitigate entire society's environmental protection pressure.
The most frequently used dyestuff of dye cotton is reactive dye at present, is also the most frequently used dye cotton side by the method coloring of dipping
Method.Although the dyeing to cotton can contaminate the cotton products of different shape, such as loose wool, cylinder yarn, reeled yarn, knitted fabric, woven fabric, ready-made clothes
Deng, but from the perspective of chemically processing, as the process of dyeing is with method, as scouring and bleaching (98 DEG C) → dye (60
DEG C) → wash and post-process.
Dyeing of Cotton Fabric with Reactive Dyes, chromatogram is complete, bright-colored, easy to process, and fastness is good, thus widely used.But so
Processing method need to use substantial amounts of water, usual water consumption wants 100 ton/ton cottons, therefore can produce substantial amounts of sewage to cotton dyeing.
Because reactive dye are designed as in dyeing course reacting generation covalent bond by the hydroxyl of active group and cellulose,
So as to obtain good fastness to washing, but inevitably some dyestuff can react with water, form hydrolised dye, because
The degree of fixation of this Dyeing of Cotton Fabric with Reactive Dyes can only achieve 70% or so, and substantial amounts of hydrolised dye is emitted in residual bath is dyed and caused
High colourity in sewage.It is in addition the good fastness to washing of product after acquirement dyeing, it is necessary to by the chemistry of reactive dyestuff molecule
Structure design turns into relatively low to the affinity of cotton so that the dye molecule not reacted with cotton can be removed easily.Thus
Must in dyeing course by substantial amounts of salt add dye bath come promote dye, to improve the utilization rate of dyestuff.Particularly contaminate dark, dye bath
In salinity may be up to 100 g/l.If the bath raio of dyeing is 1: 10, a cotton is contaminated with one ton of salt.Dyeing terminate after this
A little salt are all discharged into sewerage with the residual bath of dyeing.As can be seen here, dye cotton workshop is one and uses water rich and influential family, while being also one
The rich and influential family of sewage effluent, not only discharge capacity is big, also containing substantial amounts of salt and high colourity.Because salt and colourity are all to be difficult to use
Conventional sewage processing system is eliminated, thus it is common colored substance in sewage is deposited using substantial amounts of flocculation agent, generate
Substantial amounts of solid waste, significantly increases the expense of sewage disposal；And for contained substantial amounts of salt in sewage, there is no and effectively go
Except method, it can only be gone out with sewage discharge.For a medium-sized dyeing workshop, if dye cotton has a daily output of 15 tons, day row
The salt released will have more than 10 tons.So day by day, continuous discharge year after year, can be to the ecological environment in neighbouring river
Serious salt is caused to pollute.For higher and higher environment protection emission and Treated sewage reusing requirement at present, handled by reverse osmosis equipment
To realize that Treated sewage reusing is most common method.But for the sewage of dye cotton, this method reuse is less efficient, because salinity in sewage
It is too high, to prevent reverse osmosis equipment from being damaged by salt, water rate can only be reduced, causes the utilization of Treated sewage reusing rate and reverse osmosis equipment
Rate is remarkably decreased.
, can be efficiently each in reuse dyeing it would therefore be desirable to a kind of new cotton dyeing process spent water reclaiming system
Part of contaminated water, using water wisely forms green production.
The content of the invention
It is an object of the invention to provide a kind of new cotton dyeing process spent water reclaiming system, for cotton product dyer
The sewage of skill is recycled.
To achieve these goals, the present invention provides a kind of cotton dyeing process spent water reclaiming system, for contaminating cotton product
The sewage of color technique is recycled, and the cotton product dyeing includes：Scouring and bleaching processing, washing of scouringing and bleaching, dyeing processing, the
Once dyeing washing, second of dyeing are washed, soaped, and washes at least one times；Wherein, the Sewage Reuse System includes：
One fresh pond, the reuse pool is used to store fresh water, and dyes washing to the first time and wash water supply；One high temperature
Nanofiltration system, the water outlet of the processing of scouringing and bleaching is fluidly connected with the high temperature nanofiltration system, for handling the processing of scouringing and bleaching
Water outlet；One decolorization system, the water outlet of the dyeing processing is connected with the decolorization system fluid, described for handling
Dye the water outlet of processing；One concentration systems, the water outlet of the first time dyeing washing is fluidly connected with the concentration systems, is used for
The water outlet that the first time dyes washing is concentrated, concentration water outlet enters the decolorization system, concentration filtrate enters
The fresh pond；And, a low temperature nanofiltration system, is soaped at the water outlet of the washing of scouringing and bleaching, the water outlet of second dyeing washing
Water outlet and the water outlet of washing fluidly connected with the low temperature nanofiltration system, contaminated for the water outlet to washing of scouringing and bleaching, second
The water outlet of the water outlet of color washing, the water outlet soaped and washing is handled.
In an embodiment of the present invention, the cotton product dyeing is washed after described soap, including at least twice；
The Sewage Reuse System also includes use recycle-water storage pool always, it is described wash at least twice in first time washing water outlet and
The low temperature nanofiltration system is fluidly connected, and other washing water outlets in the washing at least twice then directly use recycle-water with described
Storage pool is fluidly connected；Also, it is described it is straight washed with recycle-water storage pool to the washing of scouringing and bleaching, second of dyeing, soap with
And washing is supplied water at least twice.
In an embodiment of the present invention, the Sewage Reuse System also includes a concentration sewage disposal system, for handling
The concentration sewage and the concentration sewage of the low temperature nanofiltration system of the high temperature nanofiltration system.
In an embodiment of the present invention, the high temperature nanofiltration system includes：One first liquid storage tank, a purpose ceramic-film filter and
One second liquid storage tank；Wherein, the fluid intake of first liquid storage tank and the water outlet of the processing of scouringing and bleaching are fluidly connected, for storing up
Deposit the water outlet of the processing of scouringing and bleaching, the fluid issuing of first liquid storage tank and the fluid intake fluid of the purpose ceramic-film filter
Connection, makes the water outlet of the processing of scouringing and bleaching enter in the purpose ceramic-film filter；The filtrate of the purpose ceramic-film filter with it is described
Second liquid storage tank is fluidly connected, and the concentration sewage of the purpose ceramic-film filter connects with the concentration sewage disposal system fluid
Connect；Also, second liquid storage tank is supplied water to the processing of scouringing and bleaching.The high temperature nanofiltration system is in 40~70 DEG C of temperature rings
Handled under border.
In an embodiment of the present invention, the decolorization system includes：One dyeing residual liquid storage pool, decoloration device, one
Distilling apparatus and a saline solution storage pool, wherein, the dyeing residual liquid storage pool and the water outlet of the dyeing processing are fluidly connected, and are used
In the water outlet for collecting the storage dyeing processing；The water outlet of the decoloration device and the dyeing residual liquid storage pool is fluidly connected,
Water outlet to the dyeing processing carries out decolorization, and the water outlet of the decoloration device connects with the distilling apparatus fluid
Connect；Water outlet of the distilling apparatus to the decoloration device carries out distillation processing, and distillate enters the fresh pond, and distillation is remaining
Liquid then enters the saline solution storage pool；The saline solution storage pool is used to storing the still residue of the distilling apparatus, and to described
Dyeing processing is supplied water.
In an embodiment of the present invention, the concentration systems include：One collecting pit and a NF membrane, wherein, it is described to collect
Pond is used for the water outlet for collecting the storage first time dyeing washing；The NF membrane is used for nanofiltration and handles the first time dyeing water
The water outlet washed, the nanofiltration filter liquor of acquisition enters the fresh pond, and nanofiltration concentrate then enters the dyeing residual liquid and stored
Pond, and handled by the decolorization system.
In an embodiment of the present invention, the low temperature nanofiltration system includes：One liquid storage pool and a NF membrane, the liquid storage pool
For collect the water outlet of the storage washing of scouringing and bleaching, the water outlet that second of dyeing is washed, the water outlet soaped and it is described at least twice
First time washing water outlet in washing；The NF membrane is for the water outlet for washing of being scouringed and bleaching described in nanofiltration processing, for the second time dyeing water
The water outlet washed, the water outlet soaped and it is described wash at least twice in first time washing water outlet, the filter liquor of acquisition enters described
Fresh pond, and concentrate is then handled into the concentration sewage disposal system.
In an embodiment of the present invention, the concentration sewage disposal system includes：One sewage collecting pool, a Biochemical pot, one
Filtration system and a distilling apparatus, wherein, the sewage collecting pool is used to collect by the water outlet of the concentration sewage disposal system,
The Biochemical pot is fluidly connected with the sewage collecting pool, and biochemical degradation is carried out to the sewage of the sewage collecting pool；The mistake
Filter system and the water outlet of the Biochemical pot are fluidly connected, and the water outlet to the Biochemical pot is filtered；The filter of the filtration system
Go out liquid into the fresh pond, the concentrate of the filtration system enters the distilling apparatus；The vaporising device is to described
The concentrate of filtration system is evaporated processing, enters the fresh pond after boil-off gas condensation, evaporates the solid obtained then
It is discharged into a solid waste collecting tank.
In an embodiment of the present invention, the filtration system is RO membranous systems or nanofiltration membrane system.
In an embodiment of the present invention, the Sewage Reuse System is carried out simultaneously to the sewage of multiple cotton product dyeings
Recycle.That is, Sewage Reuse System of the present invention can be used for the sewage disposal of a plurality of dyeing simultaneously,
Each dyeing comprises at least processing of scouringing and bleaching, washing of scouringing and bleaching, dyeing processing, for the first time dyeing washing, second of dyeing water
Wash, soap, and water-washing step at least one times, because each processing system of Sewage Reuse System of the present invention is included
The storage pool of storage is collected, thus when handling the sewage of a plurality of dyeing at the same time, it is no longer necessary to it is adjusted.
It will be appreciated by persons skilled in the art that unless otherwise specified, heretofore described device is commercially available business
Product.
In the present invention, by rationally designing each processing system of the Sewage Reuse System, with reference to the dye of cotton product
The water outlet of each process step in color characteristic, reasonable distribution cotton product dyeing so that each process step of dyeing
Water outlet is all handled and reuse by reasonable, with greatly having saved cotton product dyeing water.In addition, sewage of the present invention
Reclaiming system reasonable design water route, the reality of the refreshing house property of industrialization can be met while handle a plurality of dyeing by realizing
Border demand.
Brief description of the drawings
Fig. 1 is a kind of structural representation of Sewage Reuse System of the present invention.
Fig. 2 is the structural representation of high temperature nanofiltration system 30 described in Fig. 1.
Fig. 3 is the structural representation of decolorization system 40 described in Fig. 1.
Fig. 4 is the structural representation of concentration systems 50 described in Fig. 1.
Fig. 5 is the structural representation of low temperature nanofiltration system 60 described in Fig. 1.
Fig. 6 is the structural representation that sewage disposal system 70 is concentrated described in Fig. 1.
Embodiment
Hereinafter, with reference to embodiment, the technology to the present invention is described in detail.It is appreciated that the various following tool
Body embodiment is only used for helping skilled in the art to understand the present invention, rather than limitation of the present invention.
As shown in Figure 1, the present embodiment provides a kind of cotton dyeing process spent water reclaiming system, for cotton product dyer
The sewage of skill 1 is recycled.Fig. 1 is referred to, the cotton product dyeing is represented in Fig. 1 dotted line frame.The cotton
Product dyeing 1 includes：Scouring and bleaching processing, washing of scouringing and bleaching, dyeing processing, for the first time dyeing washing, second dyeing washing, soap
Wash, and washing (being four washings in the present embodiment) at least one times.In order to represent the Sewage Reuse System described in the present embodiment
Go in a plurality of cotton product dyeing, Fig. 1 representing remaining cotton product dyeing, remaining described cotton with dye vat square frame
Product dyeing comprises at least one and the same or analogous dyeing of the cotton product dyeing 1, and at least wraps
All staining procedures containing the cotton product dyeing 1.
Fig. 1 is referred to, the Sewage Reuse System includes：One fresh pond 2, always with recycle-water storage pool 3, a high temperature
Nanofiltration system 30, a decolorization system 40, a concentration systems 50 and a low temperature nanofiltration system 60.
Because the pipeline of fluid is complicated, different fluid trends are represented in Fig. 1 with not collinearity respectively.
As shown in Figure 1, the water outlet A of the processing of scouringing and bleaching enters the high temperature nanofiltration system 30, by the high temperature nanofiltration
System 30 is handled.The water outlet B of the dyeing processing enters the decolorization system 40, is entered by the decolorization system 40
Row decolorization.The water outlet C of the first time dyeing washing (being represented in figure " dye 1 is washed ") enters the concentration systems 50, through place
The part processing water of reason, which enters, carries out decolorization in the decolorization system 40, and another part processing water then enters new
Fresh pond 2, as described in detail below.The water outlet of the washing of scouringing and bleaching, the water outlet of second dyeing washing, the water outlet soaped and
The water outlet D of washing enters the low temperature nanofiltration system 60 for the first time, is handled by the low temperature nanofiltration system 60.After described
The water outlet E of continuous washing (being washing 2~4 in figure) is then directly entered the straight use recycle-water storage pool 3.
The water inlet to the process step of the dyeing is described below.Refer to Fig. 1, the high temperature nanofiltration system
Part water after 30 processing is as the water inlet F of the processing of scouringing and bleaching, and another part, which then enters, concentrates (the Fig. 1 of sewage disposal system 70
In do not show).The water inlet G that part water after the processing of decolorization system 40 is handled as dyeing.At the concentration systems 50
Part water after reason enters the fresh pond 2.Part water after the low temperature nanofiltration system 60 is handled is dyed as first time
The water inlet H of washing, is partly into the fresh pond 2, and another part then enters concentration sewage disposal system 70 (in Fig. 1 not
Show).2 pairs of the fresh pond follow-up washing (being washing 2~4 in figure) is supplied water, the straight use recycle-water storage pool 3
Then the washing of scouringing and bleaching, second of dyeing are washed, soaps and washes 1 for the first time and supply water.
The high temperature nanofiltration system 30 is described in detail below in conjunction with Fig. 2.
As shown in Figure 2, the high temperature nanofiltration system 30 includes：One first liquid storage tank 31, the and of a purpose ceramic-film filter 32
One second liquid storage tank 33.The water outlet A of the processing of scouringing and bleaching enters after first liquid storage tank 31, into the purpose ceramic-film filter
32 processing；The filtrate of the purpose ceramic-film filter 32 enters after second liquid storage tank 33, as the water inlet of the processing of scouringing and bleaching,
And the concentration sewage reflux of the purpose ceramic-film filter 32 enters after purpose ceramic-film filter 32 handled again, into the concentration
Sewage disposal system 70 is handled.The high temperature nanofiltration system is handled under 40~70 DEG C of temperature environments.
The decolorization system 40 is described in detail below in conjunction with Fig. 3.
As shown in Figure 3, the system of decolorization 40 includes：One dyeing residual liquid storage pool 41, decoloration device 42, one steam
The saline solution storage pool 44 of distillation unit 43 and one.Certainly, for the ease of processing, can also as shown in Figure 3 include it is two small dye it is residual
Liquid fluid reservoir G1 and G2, and saline solution storage pool G3 and G4 two small.The water outlet B of the dyeing processing enters the dyeing residual liquid
Storage pool 41, and and then point such as small dyeing residual liquid fluid reservoir G1 and G2.Decolorization is then carried out by the decoloration device 42, with
After be divided into small saline solution storage pool G3 and G4.Subsequently enter the distilling apparatus 43 and carry out distillation processing, distillate enters described new
Fresh pond 2, still residue then enters the saline solution storage pool 44, so as the dyeing processing water inlet G to the dyeing
Processing is supplied water.
The concentration systems 50 are described in detail below in conjunction with Fig. 4.
As shown in Figure 4, the concentration systems 50 include a collecting pit 51 and a NF membrane 52.The first time dyes water
The water outlet C washed enters after the collecting pit 51, and nanofiltration processing is carried out by the NF membrane 52.Nanofiltration filter liquor enters described fresh
Pond 2, and the dyeing residual liquid of dyeing residual liquid storage pool 41 that nanofiltration concentrate then enters the decolorization system 40 is stored
Pond, and and then handled by the decolorization system 40.
The low temperature nanofiltration system 60 is described in detail below in conjunction with Fig. 5.
As shown in Figure 5, the low temperature nanofiltration system 60 includes a liquid storage pool 61 and a NF membrane 62.The liquid storage pool
61 be used to collecting the water outlet D of the storage washing of scouringing and bleaching, the water outlet D that second of dyeing is washed, the water outlet D soaped and it is described at least
First time washing water outlet D in washing twice, and then nanofiltration processing is carried out by the NF membrane 62, the filter liquor of acquisition enters institute
Fresh pond 2 is stated, and concentrate is then handled into the concentration sewage disposal system 70.
The concentration sewage disposal system 70 is described in detail below in conjunction with Fig. 6.
As shown in Figure 6, the concentration sewage disposal system 70 includes：One sewage collecting pool 71, a Biochemical pot 72, a mistake
The distilling apparatus 74 of filter system 73 and one.The concentrate of the high temperature nanofiltration system 30 and the low temperature nanofiltration system 60 enters described
The sewage collecting pool 71, then carries out biochemical degradation by the Biochemical pot 72.Treatment fluid after degraded enters the filtering system
System 73 is filtered, and filter liquor, which is returned after the filtration system 73 is filtered again, enters the fresh pond 2, and obtains
Concentrate then enter the vaporising device 74.The concentrate of 74 pairs of the vaporising device filtration system 73 is evaporated place
Reason, enters the fresh pond 2 after boil-off gas condensation, the solid that evaporation is obtained then is discharged into a solid waste collecting tank 80.
The filtration system 73 is RO membranous systems or nanofiltration membrane system.
Applicating example：
Certain dyeing workshop dye cotton product produces 15 tons daily, and product can be fabric, cylinder yarn, or loose wool, below using contaminate loose wool as
Example is illustrated.
The bath raio of dyeing and washing is 1：8, band liquid 400% after loose wool is wet.Loose wool dyeing process as shown in figure 1, need through
Crossing at least 10 times add water could complete with drainage procedure, and the water consumption of loose wool per ton is (8+4x9=44 tons of water), sewage discharge
Measure as 40 tons, workshop day displacement about at 600 tons or so.Loose wool dyeing is generally to contaminate dark, and the salinity of dye bath is 100
G/l, the salt dosage of loose wool per ton is 800 kilograms, and it is 12 tons to consume salt amount day.Originally the water inlet for being all steps is all fresh water,
All water outlets are all discharged into cesspool.Because loose wool will be dyed by scouringing and bleaching in processing procedure, and multiple processes such as washing,
Differed containing dirty degree in the effect of each process, chemicals used, and the water of row.Now by shunting of removing contamination, for
The high-temperature water scouringed and bleaching keeps high temperature reuse by ceramic film process, i.e. water saving is saved again.Dyeing course then application extraction decolourize and
The residual bath reuse technology of reactive dyeing is to containing the dirty most heavy residual bath of dyeing, and the 1st water lotion after contaminating individually is located
Reason, can greatly reduce the discharge of high salt and high chroma sewage, substantial amounts of production salt (75% or so) can be saved again, together
When can also ton/ton cotton of emission reduction sewage 8.In follow-up washing process, the different stages to there is different requirements with the quality of water,
Dirt will be contained to collect into the straight use recycle-water storage pool 3 compared with Qing Hou roads wash water, for leading portion water-washing process, production is not being influenceed
On the premise of quality, loose wool per ton again can 12 tons of using water wisely.The water washed after 2 times send sodium filter to handle, through ceramic film process or
Water energy reuse 75% after sodium filter processing, the day displacement in such workshop can be (600-(40-8-12) x15) x (1-75%)
=75 tons, emission reduction (600-75)/600x100%=87.5%.This 75 tons of sodium filter concentration sewers are containing the miscellaneous of higher concentration
Matter, but it is difficult to biodegradable dyestuff and salt content is very low, existing sewage disposal system can be discharged into, also into the concentration
(the concentration further processing system of sewer, it is miniature biochemical processing unit and/or film and evaporation dress to sewage disposal system 70
Put), build up the loose wool dyeing workshop of zero-emission.
In the present invention, by rationally designing each processing system of the Sewage Reuse System, with reference to the dye of cotton product
The water outlet of each process step in color characteristic, reasonable distribution cotton product dyeing so that each process step of dyeing
Water outlet is all handled and reuse by reasonable, with greatly having saved cotton product dyeing water.In addition, sewage of the present invention
Reclaiming system reasonable design water route, the reality of the refreshing house property of industrialization can be met while handle a plurality of dyeing by realizing
Border demand.
The present invention is been described by by above-mentioned related embodiment, but above-described embodiment is only the example for implementing the present invention.
It must be noted that, it has been disclosed that embodiment be not limiting as the scope of the present invention.On the contrary, being contained in the spirit of claims
And the modification of scope and impartial setting are included in the scope of the present invention.
Claims (10)
1. a kind of cotton dyeing process spent water reclaiming system, is recycled for the sewage to cotton product dyeing, described
Cotton product dyeing includes：Scouring and bleaching processing, washing of scouringing and bleaching, dyeing processing, dyeing washing for the first time, second dyeing washing,
Soap, and wash at least one times；Characterized in that, the Sewage Reuse System includes：
One fresh pond, the reuse pool is used to store fresh water, and dyes washing to the first time and wash water supply；
One high temperature nanofiltration system, the water outlet of the processing of scouringing and bleaching is fluidly connected with the high temperature nanofiltration system, described for handling
Scouring and bleaching the water outlet of processing；
One decolorization system, the water outlet of the dyeing processing is connected with the decolorization system fluid, described for handling
Dye the water outlet of processing；
One concentration systems, the water outlet of the first time dyeing washing is fluidly connected with the concentration systems, for described first
The water outlet of secondary dyeing washing is concentrated, and concentration water outlet enters the decolorization system, and concentration filtrate enters the fresh water
Pond；And,
One low temperature nanofiltration system, the water outlet of the washing of scouringing and bleaching, the water outlet of second of dyeing washing, the water outlet soaped and washing
Water outlet is fluidly connected with the low temperature nanofiltration system, for the water outlet to washing of scouringing and bleaching, the water outlet of second of dyeing washing, soap
The water outlet and the water outlet of washing washed are handled.
2. cotton dyeing process spent water reclaiming system as claimed in claim 1, it is characterised in that the cotton product dyeing exists
It is described soap after, including wash at least twice；The Sewage Reuse System also includes using recycle-water storage pool always, it is described extremely
First time washing water outlet in few washing twice is fluidly connected with the low temperature nanofiltration system, and in the washing at least twice
Other washing water outlets are then directly fluidly connected with described with recycle-water storage pool；Also, the straight use recycle-water storage pool is to described
Scouring and bleaching washing, second dyeing washing, soap and washing is supplied water at least twice.
3. cotton dyeing process spent water reclaiming system as claimed in claim 2, it is characterised in that the Sewage Reuse System is also wrapped
Include a concentration sewage disposal system, for handle the high temperature nanofiltration system concentration sewage and the low temperature nanofiltration system it is dense
Contracting sewage.
4. cotton dyeing process spent water reclaiming system as claimed in claim 3, it is characterised in that the high temperature nanofiltration system bag
Include：One first liquid storage tank, a purpose ceramic-film filter and one second liquid storage tank；Wherein,
The fluid intake of first liquid storage tank and the water outlet of the processing of scouringing and bleaching are fluidly connected, for storing the processing of scouringing and bleaching
Water outlet, the fluid intake of the fluid issuing and the purpose ceramic-film filter of first liquid storage tank fluidly connects, and makes the white silk
The water outlet of drift processing enters in the purpose ceramic-film filter；
The filtrate of the purpose ceramic-film filter fluidly connects with second liquid storage tank, and the concentration of the purpose ceramic-film filter is dirty
Water is fluidly connected with the concentration sewage disposal system；Also,
Second liquid storage tank is supplied water to the processing of scouringing and bleaching.
5. cotton dyeing process spent water reclaiming system as claimed in claim 3, it is characterised in that the decolorization system bag
Include：One dyeing residual liquid storage pool, decoloration device, a distilling apparatus and a saline solution storage pool, wherein,
The dyeing residual liquid storage pool and the water outlet of the dyeing processing are fluidly connected, for collecting the storage dyeing processing
Water outlet；
The water outlet of the decoloration device and the dyeing residual liquid storage pool is fluidly connected, and the water outlet to the dyeing processing is taken off
Color is handled, and the water outlet of the decoloration device is fluidly connected with the distilling apparatus；
Water outlet of the distilling apparatus to the decoloration device carries out distillation processing, and distillate enters the fresh pond, distillation
Extraction raffinate then enters the saline solution storage pool；
The saline solution storage pool is used for the still residue for storing the distilling apparatus, and is supplied water to the dyeing processing.
6. cotton dyeing process spent water reclaiming system as claimed in claim 5, it is characterised in that the concentration systems include：One
Collecting pit and a NF membrane, wherein, the collecting pit is used for the water outlet for collecting the storage first time dyeing washing；The nanofiltration
Film is used for the water outlet that nanofiltration handles the first time dyeing washing, and the nanofiltration filter liquor of acquisition enters the fresh pond, and receives
Filter concentration liquid then enters the dyeing residual liquid storage pool, and is handled by the decolorization system.
7. cotton dyeing process spent water reclaiming system as claimed in claim 3, it is characterised in that the low temperature nanofiltration system bag
Include：One liquid storage pool and a NF membrane, the liquid storage pool are used to collect the water outlet for washing of scouringing and bleaching described in storage, second of dyeing washing
Water outlet, the water outlet soaped and it is described wash at least twice in first time washing water outlet；The NF membrane is handled for nanofiltration
First in the water outlet of the washing of scouringing and bleaching, the water outlet of second of dyeing washing, the water outlet soaped and the washing at least twice
Secondary washing water outlet, the filter liquor of acquisition enters the fresh pond, and concentrate then enters into the concentration sewage disposal system
Row processing.
8. cotton dyeing process spent water reclaiming system as claimed in claim 3, it is characterised in that the concentration sewage disposal system
Including：One sewage collecting pool, a Biochemical pot, a filtration system and a distilling apparatus, wherein,
The sewage collecting pool is used to collect by the water outlet of the concentration sewage disposal system,
The Biochemical pot is fluidly connected with the sewage collecting pool, and biochemical degradation is carried out to the sewage of the sewage collecting pool；
The filtration system and the water outlet of the Biochemical pot are fluidly connected, and the water outlet to the Biochemical pot is filtered；
The filter liquor of the filtration system enters the fresh pond, and the concentrate of the filtration system enters the distillation dress
Put；
The vaporising device is evaporated processing to the concentrate of the filtration system, enters described fresh after boil-off gas condensation
Pond, the solid that evaporation is obtained then is discharged into a solid waste collecting tank.
9. cotton dyeing process spent water reclaiming system as claimed in claim 8, it is characterised in that the filtration system is RO membrane systems
System or nanofiltration membrane system.
10. cotton dyeing process spent water reclaiming system as claimed in claim 1, it is characterised in that the Sewage Reuse System pair
The sewage of multiple cotton product dyeings is recycled simultaneously.
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| CN201710196629.1A CN107265750B (en) | 2017-03-28 | 2017-03-28 | Cotton dyeing process sewage recycling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196629.1A CN107265750B (en) | 2017-03-28 | 2017-03-28 | Cotton dyeing process sewage recycling system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862730A (en) * | 2018-07-17 | 2018-11-23 | 郑州汉东科技有限公司 | A kind of recoverying and utilizing method of dope dyeing raffinate |
| CN110606587A (en) * | 2019-08-09 | 2019-12-24 | 浙江丝科院轻纺材料有限公司 | Full-flow circulating dyeing system and process and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037204Y (en) * | 2007-05-11 | 2008-03-19 | 江阴福斯特纺织有限公司 | Water-saving energy-reducing water processing system for color dyeing machine |
| CN104829028A (en) * | 2015-04-23 | 2015-08-12 | 南京工业大学 | Nanofiltration membrane method continuous dyeing process |
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2017
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201037204Y (en) * | 2007-05-11 | 2008-03-19 | 江阴福斯特纺织有限公司 | Water-saving energy-reducing water processing system for color dyeing machine |
| CN104829028A (en) * | 2015-04-23 | 2015-08-12 | 南京工业大学 | Nanofiltration membrane method continuous dyeing process |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862730A (en) * | 2018-07-17 | 2018-11-23 | 郑州汉东科技有限公司 | A kind of recoverying and utilizing method of dope dyeing raffinate |
| CN110606587A (en) * | 2019-08-09 | 2019-12-24 | 浙江丝科院轻纺材料有限公司 | Full-flow circulating dyeing system and process and application thereof |
| CN110606587B (en) * | 2019-08-09 | 2023-03-10 | 浙江丝绸科技有限公司 | Full-flow circulating dyeing system and process and application thereof |
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