CN101538107B - Method for treating wastewater in textile printing and dyeing industry - Google Patents
Method for treating wastewater in textile printing and dyeing industry Download PDFInfo
- Publication number
- CN101538107B CN101538107B CN200910136664XA CN200910136664A CN101538107B CN 101538107 B CN101538107 B CN 101538107B CN 200910136664X A CN200910136664X A CN 200910136664XA CN 200910136664 A CN200910136664 A CN 200910136664A CN 101538107 B CN101538107 B CN 101538107B
- Authority
- CN
- China
- Prior art keywords
- dyeing
- waste water
- treatment
- residence time
- wastewater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention discloses a method for treating the wastewater in textile printing and dyeing industry. The treatment method comprises the following steps of: A. implementing pretreatment to high-chroma dye stock solution, injecting the high-chroma dye stock solution into a color reaction tank, then adding flocculant FeCl3 and adding 200-400mg/L high-chroma dye stock solution with the residence time of 5-7h; B. homogenization treatment: adding the product in step A, other waste water and waste liquid, and externally-introduced organic wastewater into a regulation pool with the residence time of7-9h; C. biochemical treatment: leading the effluent of the regulation pool to enter a hydrolytic acidification pool, an aerobic tank and a sedimentation tank in sequence, with the residence time of 45-50h for the wastewater at the stage; and D. post-flocculation treatment: adding flocculant FeSO4 into the effluent in the step C and then implementing post-flocculation treatment. After the treatment of the method, the effluent quality conforms to the I-class standard in Table 3 of GB4287-92 Discharge Standards for the Textile Dyeing and Finishing Industrial Water Pollutant.
Description
Technical field
The present invention relates to the technology for treating industrial waste water field, specifically, the present invention is a kind of treatment process of wastewater in textile printing and dyeing industry.
Background technology
At present, trade effluent is one of primary pollution source of environment.The waste water of textile printing and dyeing industry is the organic waste water based on the complicated component of organic contamination.Four operations of textile printing and dyeing processing all can be discharged waste water, pretreatment stage (comprise singe, operations such as destarch, boiling-off, bleaching, mercerising) is discharged desized wastewater, boiled-off waste water, bleaching effluent and mercerizing waste water, dyeing process is discharged dyeing waste-water, revenue stamp process is discharged printing waste water and soap lye waste water, and finishing process is then discharged arrangement waste water.Thereby textile printing and dyeing wastewater is the composite waste of above all kinds of waste water, or the comprehensive wastewater except that bleaching effluent.
The water quality of textile printing and dyeing wastewater is different and different with kinds of fibers that adopts and complete processing, and contaminant component is widely different.The draining situation of each operation of textile printing and dyeing generally is: desized wastewater, boiled-off waste water, bleaching effluent, mercerizing waste water, dyeing waste-water, printing waste water, arrangement waste water, alkali decrement waste water.Behind the kinds of fibers and complete processing variation of dyeing and printing process and employing, waste water quality will have bigger variation.As, during the alkali decrement waste water that in containing the terylene artificial silk dyeing process in the waste water, produces, the COD of waste water
CrTo increase to more than 2000～3000mg/L BOD
5Increase to more than the 800mg/L, the pH value reaches 11.5～12, and waste water quality increases with the add-on of terylene artificial silk printing and dyeing alkali decrement waste water and worsens.COD in the alkali decrement waste water that adds
CrThe amount excess wastewater in COD
CrAmount 20% time, biochemical treatment will be difficult to adapt to.
The characteristics of dyeing waste water: 1. the water yield is big.2. concentration height.Most of waste water is alkalescence, and COD is higher, and color and luster is dark.3. variation water quality is big.4. based on Organic pollutants.5. intractability is big, biodegradability is poor.Therefore, dyeing waste water is one of more unmanageable trade effluent.6. part waste water contains poisonous objectionable impurities.Wastewater treatment mainly to as if BOD
5, readily biodegradable or biodegradation rate organism, basicity, coloring matter and a small amount of toxic substance slowly not.
In recent years because the development of man made fiber fabric, the rise of emulation silk and finishing process in printing and dye-ing development of technology, make bio-refractory organism such as PVA slurry, artificial silk alkaline hydrolysis thing (mainly being O-phthalic acids material), New-type adjuvant enter textile printing and dyeing wastewater in a large number, its COD concentration also rises to 2000～3000mg/L by original hundreds of mg/L, thereby it is original biological treatment system COD clearance is dropped to about 50% from 70%, even lower.Traditional biological treatment has been subjected to serious challenge; The present invention mainly is the water quality characteristics according to textile printing and dyeing wastewater, solves the basicity of dyeing waste water, difficult problems such as readily biodegradable or biodegradation rate is organic very slowly, coloring matter and toxic substance not.
Treatment process need be aided with necessary pre-treatment and physical chemistry advanced treatment method simultaneously based on biological treatment.Pre-treatment mainly contains: regulate (water quality and quantity homogenizing), neutralization, useless chrome liquor processing, the dense pin water pretreatment of dyestuff.Materialization treatment process commonly used mainly is coagulant sedimentation and mixed condensed gas flotation process.In addition, electrolytic process, biological activated carbon method and chemical oxidization method etc. also are used for treatment of dyeing wastewater sometimes.Biological treatment is mainly aerobic method, and that adopts at present has activated sludge process, biological contact oxidation process, blodisc and a tower biological filter etc.For improving the biodegradability of waste water, anoxic, anaerobic technique also are applied in the treatment of dyeing wastewater.
At present, domestic cotton and the cotton-spinning fabric dyeing waste-water treatment process that adopt based on aerobic treatment more.The treatment technology of existing textile printing and dyeing wastewater is more single, and cotton industry waste water does not generally reach emission standard after carrying out a biological disposal upon, and the chemical processing device of the different types of can not also connecting behind biological treatment device is effectively further handled.
Summary of the invention
The treatment process that the purpose of this invention is to provide a kind of wastewater in textile printing and dyeing industry.
In order to realize above-mentioned goal of the invention, the present invention by the following technical solutions:
A. high chroma dyeing stoste is carried out pre-treatment:
The high chroma stoste that dyes is injected the color reaction pond, throw flocculation agent FeCl then
3, dosage is 200～400mg/L high chroma dyeing stoste, the residence time is 5～7h;
This process can make colourity reduce about 90%, is reduced to about 100 times by 1000 times that intake; COD
CrReduce about 30%, be reduced to about 1750mg/L by the 2500mg/L of intaking, simultaneously, the biodegradability that enters the sewage of subsequent technique makes moderate progress.
B. processing homogenizes: with product, other waste water and waste liquid of steps A with draw organic waste water outward and drop into equalizing tank, the residence time is 7～9h; The product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the acid organic waste water are 2～5: 1: 0.01～0.05;
C. biochemical treatment: the water outlet of equalizing tank enters hydrolysis acidification pool, Aerobic Pond and settling tank successively, and sewage is 45～50h in this residence time in stage.
Basically reach water quality standard GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3, I grade standard to this stage effluent quality.
D. flocculation treatment after: in the water outlet of step C, add flocculation agent FeSO
4, dosage is 50～100mg/L, the residence time is 5.5～6.5h.
After this handles, can guarantee that the water quality of water outlet reaches water quality standard GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3, I grade standard.
High chroma dyeing stoste is meant dyeing stoste (concentration and colourity are all higher usually), cooking waste liquor and the alkali decrement waste water that produces in the textile printing and dyeing production process.
Other waste water and waste liquid are meant the waste water and waste liquid that produces in other textile printing and dyeing production process except high chroma dyeing stoste.
Drawing organic waste water outward is a kind of non-textile printing and dyeing wastewater, and this waste water is good compound in the present invention.It is acid that this waste water not only is, and BOD, NH
3-N, total P all very high (3≤pH≤4,12000≤BOD≤30000mg/L, 200≤NH
3-N≤3000mg/L and 8≤total P≤15mg/L).
Characteristics of the present invention are:
1, the dyeing stoste of high density, cooking waste liquor, other waste water of alkali decrement waste water and subsequent technique separate, enter the color reaction pond separately, all dyeing waste-waters are collected in the color reaction pond, utilize the shades of colour dyestuff in this pond, to react to each other, the dyeing waste-water of multiple different colours is treated as the waste water of solid color the most at last, this waste water characteristic is the colourity height, and the pH value is high, and biodegradability is poor.Add the flocculation agent of the good decolorizing effect of performance under high pH value condition in the color reaction pond, most of colourity is reduced, reduced the dispensing cost of back flocculation, and reduced the pH value of waste water; This process can make colourity reduce about 90%, COD
CrReduce about 30%, and make the biodegradability of water inlet make moderate progress.
2, other waste water of subsequent technique enter equalizing tank, and equalizing tank makes water all measure, homogenize, and have suitably reduced the pH value of waste water, have reduced the impact load of aftertreatment.
3, the dyeing stoste of high density, cooking waste liquor, alkali decrement waste water etc. after the pre-treatment, entering total equalizing tank again after the organic concentration reduction, focus on other waste water, and this is vital.
4, should add the acid neutralization earlier for the high waste water of pH value (as alkali decrement waste water); Before entering hydrolysis acidification pool, need add P and N, textile printing and dyeing wastewater COD for nutrition source is insufficient
CrUp to 2500mg/L, BOD
5/ COD
CrValue for the CODCr value is reduced greatly, improves BOD less than 30% simultaneously
5/ COD
CrValue must add suitable N and P before entering hydrolysis acidification pool, improve BOD
5/ COD
CrValue, and, help the carrying out of biochemical treatment with the normal value that the Institute of Micro-biology that the pH value is adjusted works.For reducing running cost, need to select to regulate the pH value, the medium in source of having additional nutrients is again handled this type of waste water as compound, through repeatedly investigating, testing, finally selected a kind of trade effluent (drawing organic waste water outward) as best compound, it is acid that this waste water not only is, and BOD, N, P are very high.This process not only can reduce basicity, and regulating the pH value is about 7.5, and has replenished nutrition source, but biochemical condition preferably is provided, and improves the BOD that enters sewage in the biochemistry pool
5/ COD
CrThan reaching 50%, improved biochemical, reduced running cost, kill two birds with one stone.
Because COD in the waste water
CrUp to 2500mg/L, BOD
5/ COD
CrValue is less than 30%, for COD
CrValue reduces greatly, improves BOD simultaneously
5/ COD
CrValue, treatment process are first materialization, biochemical, protection materialization again, adopt dosing, reaction, mixing, the precipitator method need choose the kind and the dosage of medicament earlier, and dosing reaction mixed precipitation mainly is the colourity of removing in the water.This method mainly is to investigate the percent of decolourization of aluminium, iron two big class coagulating agent according to the water quality experimental selection, finds iron salt coagulant PFS and FeCl
3Coagulation effect be better than aluminium salt PAC and Al
2(SO
4)
3, particularly to more unmanageable neutrality, reactive dyestuffs.Especially FeCl
3, under the big water sample pH of consumption value condition with higher, most dyestuffs all there is clearance preferably, this is because FeCl
3Except that general charge neutrality and compression double electric layer effect, it is relevant also to have the complexing settlement action simultaneously.Under certain conditions, Fe
3+Can with the group that contains lone-pair electron in the dye molecule as-NH
2,-NR
2The macromole complex compound of ,-generating structure complexity such as OH, thus the water-soluble of dyestuff reduced, make dye solution have colloidal property and easily removed by coagulation.The observed FeCl that adds in the experiment
3The proof that variable color may be this complexing action takes place in back dyestuff water sample easily.When handling overbasic dyeing waste water, FeCl
3Can be used as a kind of coagulating agent preferably, just consumption is relatively large.Present method has been selected two steps dispensing flucculation process, and the biochemistry pool front adds a part of FeCl
3, promptly satisfy FeCl
3Working conditions, reach best flocculating decoloring effect, regulate the pH value again, the reduction expense.
5, the back flocculation stage adds FeSO
4Guarantee that final outflow water is lower than the standard discharging.
Present method distinguishing feature is a high chroma water individual curing, draws outward in the organic waste water and pH and improve the B/C ratio, and the biochemistry pool front adds flocculation and advances FeCl
3Reach best flocculating decoloring effect, the biochemistry pool back adds flocculation agent FeSO
4Safeguard measure.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Embodiment 1
Certain manufacturing district, city gets up to handle the Waste Water Centralized of several textile printing and dyeing factory.Two factory owners will carry out cotton textiles processing, and output is not carried out alkali and reclaimed about the hundreds of myriametre, and main dyestuff is reactive dyestuffs, intellectual circle's dyestuff, coating and a spot of thioxine dyes.The processing water yield is 25000m
3/ day, the composite waste water quality of these 2 factories sees Table 1.
Table 1 composite waste water-quality guideline
| Project | The change of water quality scope | Mean value |
| COD Cr(mg/L) | 236.67～4037.62 | 2500 |
| BOD 5(mg/L) | 105.78～2050.56 | 650 |
| SS(mg/L) | 59～5944 | 600 |
| Colourity (doubly) | 27.78～5000 | 1000 |
| The pH value | 12.0～14.0 | 13.0 |
As shown in Figure 1, the present invention adopts following steps:
A. high chroma dyeing stoste is carried out pre-treatment:
The high chroma stoste that dyes is injected the color reaction pond, add flocculation agent FeCl then
3, dosage is 300mg/L high chroma dyeing stoste, the residence time is 6h;
This process can make colourity reduce about 90%, is reduced to about 100 times by 1000 times that intake; COD
CrReduce about 30%, be reduced to about 1750mg/L by the 2500mg/L of intaking, simultaneously, the biodegradability that enters the sewage of subsequent technique makes moderate progress.
B. processing homogenizes: with product, other waste water and waste liquid of steps A with draw organic waste water outward and drop into equalizing tank, the residence time is 8h; The product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 3: 1: 0.03.
C. biochemical treatment: the water outlet of equalizing tank enters hydrolysis acidification pool, Aerobic Pond and settling tank successively, and sewage is 47h in this residence time in stage.Basically reach water quality standard to this stage effluent quality.
D. flocculation treatment after: in the water outlet of step C, add flocculation agent FeSO
4, dosage is 75mg/L, the residence time is 6h.After this handles, can guarantee that the water quality of water outlet reaches water quality standard.
The water quality of handling the back water outlet sees Table 2.This water quality meets the I grade standard of GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3.
Table 2 effluent quality main project table
| Project | The change of water quality scope | The GB4287-92I grade standard |
| COD Cr(mg/L) | 70 | 100 |
| BOD 5(mg/L) | 5 | 25 |
| SS(mg/L) | 30 | 70 |
| Colourity (doubly) | 30 | 40 |
| The pH value | 6～9 | 6～9 |
Embodiment 2
In the treating processes that homogenizes, the product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 2: 1: 0.05, and other processing condition are identical with embodiment 1.The water quality of handling the back water outlet meets the I grade standard of GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3.
Embodiment 3
In the treating processes that homogenizes, the product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 5: 1: 0.01, and other processing condition are identical with embodiment 1.The water quality of handling the back water outlet meets the I grade standard of GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3.
Embodiment 4
In the treating processes that homogenizes, the product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 2: 1: 0.01, and other processing condition are identical with embodiment 1.The water quality of handling the back water outlet meets the I grade standard of GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3.
Embodiment 5
In the treating processes that homogenizes, the product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 5: 1: 0.05, and other processing condition are identical with embodiment 1.The water quality of handling the back water outlet meets the I grade standard of GB4287-92 " textile dyeing and finishing industrial water pollution thing emission standard " table 3.
Among the embodiment 1～5, the used outer organic waste water that draws all meets following index: 3≤pH≤4,12000≤BOD≤30000mg/L, 200≤NH
3-N≤3000mg/L and 8≤total P≤15mg/L.
More than the treatment process of wastewater in textile printing and dyeing industry provided by the present invention is described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. the treatment process of a wastewater in textile printing and dyeing industry is characterized in that, is made up of following steps:
A. high chroma dyeing stoste is carried out pre-treatment:
The high chroma stoste that dyes is injected the color reaction pond, add flocculation agent FeCl then
3, dosage is 200～400mg/L high chroma dyeing stoste, the residence time is 5～7h,
Described high chroma dyeing stoste is meant the dyeing stoste that produces in the textile printing and dyeing production process, and concentration and colourity are all higher usually, perhaps cooking waste liquor and alkali decrement waste water;
B. processing homogenizes: with product, other waste water and waste liquid of steps A with draw organic waste water outward and drop into equalizing tank, the residence time is 7～9h; The product of steps A, other waste water and waste liquid and the volume ratio of drawing outward between the organic waste water are 2～5: 1: 0.01～0.05, described other waste water and waste liquid are meant the waste water and waste liquid that produces in other textile printing and dyeing production process except high chroma dyeing stoste, describedly draw organic waste water and have following index: 3≤pH≤4,12000≤BOD≤30000mg/L, 200≤NH outward
3-N≤3000mg/L and 8≤total P≤15mg/L;
C. biochemical treatment: the water outlet of equalizing tank enters hydrolysis acidification pool, Aerobic Pond and settling tank successively, and sewage is 45～50h in this residence time in stage;
D. flocculation treatment after: in the water outlet of step C, add flocculation agent FeSO
4, dosage is 50～100mg/L, the residence time is 5.5～6.5h.
2. the treatment process of wastewater in textile printing and dyeing industry according to claim 1, it is characterized in that: in the described steps A, the pre-treatment residence time is 6h.
3. the treatment process of wastewater in textile printing and dyeing industry according to claim 1 is characterized in that: among the described step B, homogenizing and handling the residence time is 8h.
4. the treatment process of wastewater in textile printing and dyeing industry according to claim 1, it is characterized in that: among the described step C, the biochemical treatment residence time is 47h.
5. the treatment process of wastewater in textile printing and dyeing industry according to claim 1, it is characterized in that: among the described step D, the back flocculation treatment residence time is 6h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910136664XA CN101538107B (en) | 2009-05-12 | 2009-05-12 | Method for treating wastewater in textile printing and dyeing industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910136664XA CN101538107B (en) | 2009-05-12 | 2009-05-12 | Method for treating wastewater in textile printing and dyeing industry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101538107A CN101538107A (en) | 2009-09-23 |
| CN101538107B true CN101538107B (en) | 2011-07-20 |
Family
ID=41121543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910136664XA Expired - Fee Related CN101538107B (en) | 2009-05-12 | 2009-05-12 | Method for treating wastewater in textile printing and dyeing industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101538107B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540154A (en) * | 2016-06-29 | 2018-01-05 | 株式会社水处理世界 | Modifying porcelain method |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276117A (en) * | 2011-07-21 | 2011-12-14 | 波鹰(厦门)科技有限公司 | Treatment device and method for garbage percolate |
| CN104926039A (en) * | 2015-06-19 | 2015-09-23 | 王桂霞 | Method for treating printing and dyeing wastewater |
| CN105692826A (en) * | 2016-01-22 | 2016-06-22 | 南通海陵环境检测有限公司 | Flocculating agent composition for treating textile wastewater and using method thereof |
| CN105967453B (en) * | 2016-06-24 | 2018-02-13 | 安徽国能亿盛环保科技有限公司 | A kind of combined type technique for the treatment of textile dyeing waste water |
| CN106245259B (en) * | 2016-08-27 | 2018-11-13 | 杭州大地印染有限公司 | It is knitted fabric environment-friendly production process and its purification system |
| CN106348497A (en) * | 2016-11-17 | 2017-01-25 | 无锡明盛纺织机械有限公司 | Ozone oxidization-precipitation-sand filtering-iron powder filtering treatment process for alkali-minimization wastewater in printing and dyeing industry |
| CN106430838A (en) * | 2016-11-17 | 2017-02-22 | 无锡明盛纺织机械有限公司 | Process for treatment of alkali-minimization wastewater in printing and dyeing industry |
| CN106396292A (en) * | 2016-12-01 | 2017-02-15 | 苟亚松 | Printing and dyeing wastewater treating system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385380A (en) * | 2001-05-11 | 2002-12-18 | 中国石油化工股份有限公司 | Method for treating acrylonitrile and acrylic waste water |
| CN1511795A (en) * | 2002-12-30 | 2004-07-14 | 亓久平 | High chrominance printing and dyeing waste water treating process without producing mud |
| CN1569694A (en) * | 2003-07-18 | 2005-01-26 | 东莞市天虹环保工程有限公司 | Device and method for advanced purification and reuse of printing and dyeing wastewater |
| CN1569698A (en) * | 2004-05-12 | 2005-01-26 | 东华大学 | Method and equipment for treatment of polluted fluid |
| CN1765779A (en) * | 2005-09-02 | 2006-05-03 | 浙江大学 | Printing and dyeing wastewater reuse treatment method |
| CN1800050A (en) * | 2005-12-15 | 2006-07-12 | 南京大学 | Waste water treatment method of anerobic- anoxia-aerobic-coagulated precipitation |
| JP2008110280A (en) * | 2006-10-30 | 2008-05-15 | Tech Corporation:Kk | Method for treating dyeing waste water |
-
2009
- 2009-05-12 CN CN200910136664XA patent/CN101538107B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1385380A (en) * | 2001-05-11 | 2002-12-18 | 中国石油化工股份有限公司 | Method for treating acrylonitrile and acrylic waste water |
| CN1511795A (en) * | 2002-12-30 | 2004-07-14 | 亓久平 | High chrominance printing and dyeing waste water treating process without producing mud |
| CN1569694A (en) * | 2003-07-18 | 2005-01-26 | 东莞市天虹环保工程有限公司 | Device and method for advanced purification and reuse of printing and dyeing wastewater |
| CN1569698A (en) * | 2004-05-12 | 2005-01-26 | 东华大学 | Method and equipment for treatment of polluted fluid |
| CN1765779A (en) * | 2005-09-02 | 2006-05-03 | 浙江大学 | Printing and dyeing wastewater reuse treatment method |
| CN1800050A (en) * | 2005-12-15 | 2006-07-12 | 南京大学 | Waste water treatment method of anerobic- anoxia-aerobic-coagulated precipitation |
| JP2008110280A (en) * | 2006-10-30 | 2008-05-15 | Tech Corporation:Kk | Method for treating dyeing waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107540154A (en) * | 2016-06-29 | 2018-01-05 | 株式会社水处理世界 | Modifying porcelain method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101538107A (en) | 2009-09-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101538107B (en) | Method for treating wastewater in textile printing and dyeing industry | |
| Yaseen et al. | Textile dye wastewater characteristics and constituents of synthetic effluents: a critical review | |
| CN1323042C (en) | Printing and dyeing wastewater recovery and disposal method | |
| Ghaly et al. | Production, characterization and treatment of textile effluents: a critical review | |
| CN108558140B (en) | A kind of dyeing fabric sewage water treatment method | |
| Brower et al. | Economical pretreatment for color removal from textile dye wastes | |
| CN109133508A (en) | The high-efficient treatment method of textile printing and dyeing wastewater | |
| CN105060636B (en) | A kind of dual treatment dyeing waste water intermediate water reuse system and technique | |
| CN105692952B (en) | The processing method of textile waste | |
| Kabdasli et al. | Characterization and treatment of textile printing wastewaters | |
| CN105727902A (en) | Adsorption composition for treating textile wastewater | |
| CN108373240B (en) | A kind of cotton printing and dyeing wastewater treatment and reuse integrated process | |
| Yin et al. | Case analysis on textile wastewater subjected to combined physicochemical–biological treatment and ozonation | |
| Ananthashankar | Treatment of textile effluent containing reactive red 120 dye using advanced oxidation | |
| CN105417851A (en) | Printing and dyeing wastewater treatment method and preparation method of compound biological flocculant | |
| CN107986569A (en) | A kind of high nitrogen printing waste water treatment for reuse system and its application method | |
| CN111196663A (en) | Method and device for biological treatment of printing and dyeing wastewater | |
| CN104829046B (en) | A kind of high-concentration dye-printing desizing waste water processing method | |
| CN108624541A (en) | A kind of denitrification mix bacterium agent for textile industry Industrial Waste Water Treatments | |
| CN108892312A (en) | A kind of method that magnetic bio charcoal strengthens treatment of dyeing wastewater efficiency | |
| CN211595368U (en) | Biological treatment device for printing and dyeing wastewater | |
| CN105692826A (en) | Flocculating agent composition for treating textile wastewater and using method thereof | |
| CN208917011U (en) | A kind of Cotton Spinning Fibre Dyeing Wastewater treatment for reuse device | |
| CN105692859B (en) | Strong oxidizer and its application | |
| Zorpas et al. | Chemical treatment of polluted waste using different coagulants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20140512 |