CN103663639A - Coagulant for treating textile printing and dyeing wastewater and preparation method thereof - Google Patents
Coagulant for treating textile printing and dyeing wastewater and preparation method thereof Download PDFInfo
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- CN103663639A CN103663639A CN201310614468.5A CN201310614468A CN103663639A CN 103663639 A CN103663639 A CN 103663639A CN 201310614468 A CN201310614468 A CN 201310614468A CN 103663639 A CN103663639 A CN 103663639A
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- textile printing
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- dyeing wastewater
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Abstract
The invention relates to a coagulant for treating textile printing and dyeing wastewater and a preparation method thereof. The coagulant comprises components in parts by mass as follows: 14.7-20 parts of sodium metaaluminate, 4-8 parts of ferric chloride hexahydrate, 2-5 parts of ferrous sulfate heptahydrate, 28-39 parts of hydrochloric acid, 3.5-8.5 parts of sulfuric acid, 2-5 parts of calcium sulfate, 2.3-3.2 parts of cereal starch, 0.9-1.6 parts of aluminum hydroxide, 2-6 parts of urea and 40-60 parts of water, wherein the mass fraction of hydrochloric acid is 35%, and the mass fraction of sulfuric acid is 48%. The coagulant provided by the invention has strong coagulation function and good decoloration effect, and can reduce COD (chemical oxygen demand) value in the wastewater; and chemical properties of the treated wastewater are stable.
Description
Technical field
The present invention relates to water-treatment technology field, relate in particular to a kind of textile printing and dyeing wastewater and process with coagulating agent and preparation method thereof.
Background technology
Along with social development, textile industry is also in develop rapidly.China is that maximum in the world fabric clothing is produced and export State, and textile industry is labour intensive profession, therefore for solving social employment problem, has vital effect.But weaving needs printing and dyeing, in dyeing process, can produce a large amount of waste water, if waste water is without processing directly discharge, can cause very large pollution to people's sanitary sewage.The decolorizing effect of existing coagulant for treating waste water is poor, and can not effectively reduce the COD value in waste water.
Summary of the invention
the technical problem solving:poor and can not effectively reduce the shortcoming of COD in waste water for existing coagulant for treating waste water decolorizing effect, the invention provides a kind of textile printing and dyeing wastewater and process with coagulating agent and preparation method thereof.
technical scheme:a kind of textile printing and dyeing wastewater processing coagulating agent, in mass parts, contain following composition: 14.7～20 parts of sodium metaaluminates, 4～8 parts of ferric chloride (FeCl36H2O)s, 2～5 parts of iron vitriols, 28～39 parts of hydrochloric acid, 3.5～8.5 parts, sulfuric acid, 2～5 parts, calcium sulfate, 2.3～3.2 parts of cereal starchs, 0.9～1.6 part, aluminium hydroxide, 40～60 parts, 2～6 parts, urea and water; The mass concentration of described hydrochloric acid is 35%, and the mass concentration of sulfuric acid is 48%.
A kind of textile printing and dyeing wastewater processing coagulating agent described above, in mass parts, contain following composition: 17.3 parts of sodium metaaluminates, 6 parts of ferric chloride (FeCl36H2O)s, 3.5 parts of iron vitriols, 34 parts of hydrochloric acid, 6.1 parts, sulfuric acid, 3.5 parts, calcium sulfate, 2.75 parts of cereal starchs, 1.25 parts, aluminium hydroxide, 50 parts, 4 parts, urea and water.
A kind of textile printing and dyeing wastewater described above is processed as follows by the preparation process of coagulating agent: hydrochloric acid, sulfuric acid, sodium metaaluminate, ferric chloride (FeCl36H2O), iron vitriol and water are added in reactor, be heated to while stirring 110～130 ℃, insulation 2.5～3.5h; Then be cooled to 70～80 ℃, add calcium sulfate, aluminium hydroxide, insulation 1～1.5h; Finally be cooled to 30～40 ℃, add cereal starch and urea, mix and get product.
beneficial effect:a kind of textile printing and dyeing wastewater provided by the invention is processed with coagulating agent and preparation method thereof, and the cohesion of this coagulating agent is strong, and good decolorizing effect, can also effectively reduce the COD value in waste water, the waste water stable chemical nature after processing.
Embodiment
embodiment 1
The present embodiment provides a kind of textile printing and dyeing wastewater processing coagulating agent, in mass parts, contain following composition: 14.7 parts of sodium metaaluminates, 4 parts of ferric chloride (FeCl36H2O)s, 2 parts of iron vitriols, 28 parts of hydrochloric acid, 3.5 parts, sulfuric acid, 2 parts, calcium sulfate, 2.3 parts of cereal starchs, 0.9 part, aluminium hydroxide, 40 parts, 2 parts, urea and water; The mass concentration of described hydrochloric acid is 35%, and the mass concentration of sulfuric acid is 48%.
A kind of textile printing and dyeing wastewater is processed as follows by the preparation process of coagulating agent: hydrochloric acid, sulfuric acid, sodium metaaluminate, ferric chloride (FeCl36H2O), iron vitriol and water are added in reactor, be heated to while stirring 120 ℃, insulation 2.5h; Then be cooled to 70 ℃, add calcium sulfate, aluminium hydroxide, insulation 1h; Finally be cooled to 40 ℃, add cereal starch and urea, mix and get product.
embodiment 2
The present embodiment provides a kind of textile printing and dyeing wastewater processing coagulating agent, in mass parts, contain following composition: 20 parts of sodium metaaluminates, 8 parts of ferric chloride (FeCl36H2O)s, 5 parts of iron vitriols, 39 parts of hydrochloric acid, 8.5 parts, sulfuric acid, 5 parts, calcium sulfate, 3.2 parts of cereal starchs, 1.6 parts, aluminium hydroxide, 60 parts, 6 parts, urea and water; The mass concentration of described hydrochloric acid is 35%, and the mass concentration of sulfuric acid is 48%.
A kind of textile printing and dyeing wastewater is processed as follows by the preparation process of coagulating agent: hydrochloric acid, sulfuric acid, sodium metaaluminate, ferric chloride (FeCl36H2O), iron vitriol and water are added in reactor, be heated to while stirring 130 ℃, insulation 3.5h; Then be cooled to 80 ℃, add calcium sulfate, aluminium hydroxide, insulation 1.5h; Finally be cooled to 40 ℃, add cereal starch and urea, mix and get product.
embodiment 3
The present embodiment provides a kind of textile printing and dyeing wastewater processing coagulating agent, in mass parts, contain following composition: 17.3 parts of sodium metaaluminates, 6 parts of ferric chloride (FeCl36H2O)s, 3.5 parts of iron vitriols, 34 parts of hydrochloric acid, 6.1 parts, sulfuric acid, 3.5 parts, calcium sulfate, 2.75 parts of cereal starchs, 1.25 parts, aluminium hydroxide, 50 parts, 4 parts, urea and water; The mass concentration of described hydrochloric acid is 35%, and the mass concentration of sulfuric acid is 48%.
A kind of textile printing and dyeing wastewater is processed as follows by the preparation process of coagulating agent: hydrochloric acid, sulfuric acid, sodium metaaluminate, ferric chloride (FeCl36H2O), iron vitriol and water are added in reactor, be heated to while stirring 120 ℃, insulation 3h; Then be cooled to 75 ℃, add calcium sulfate, aluminium hydroxide, insulation 1h; Finally be cooled to 35 ℃, add cereal starch and urea, mix and get product.
A kind of textile printing and dyeing wastewater of above-described embodiment 1～embodiment 3 is processed the technical performance index of processing same dyeing waste water with coagulating agent, and its detected result is as follows:
Detected result
A kind of the textile printing and dyeing wastewater above embodiment of the present invention being provided is processed and is described in detail with coagulating agent and preparation method thereof, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. a textile printing and dyeing wastewater processing coagulating agent, it is characterized in that containing following composition in mass parts: 14.7～20 parts of sodium metaaluminates, 4～8 parts of ferric chloride (FeCl36H2O)s, 2～5 parts of iron vitriols, 28～39 parts of hydrochloric acid, 3.5～8.5 parts, sulfuric acid, 2～5 parts, calcium sulfate, 2.3～3.2 parts of cereal starchs, 0.9～1.6 part, aluminium hydroxide, 40～60 parts, 2～6 parts, urea and water; The mass concentration of described hydrochloric acid is 35%, and the mass concentration of sulfuric acid is 48%.
2. a kind of textile printing and dyeing wastewater processing coagulating agent according to claim 1, it is characterized in that containing following composition in mass parts: 17.3 parts of sodium metaaluminates, 6 parts of ferric chloride (FeCl36H2O)s, 3.5 parts of iron vitriols, 34 parts of hydrochloric acid, 6.1 parts, sulfuric acid, 3.5 parts, calcium sulfate, 2.75 parts of cereal starchs, 1.25 parts, aluminium hydroxide, 50 parts, 4 parts, urea and water.
3. a kind of textile printing and dyeing wastewater as claimed in claim 1 is processed the preparation method with coagulating agent, the preparation process that it is characterized in that the method is as follows: hydrochloric acid, sulfuric acid, sodium metaaluminate, ferric chloride (FeCl36H2O), iron vitriol and water are added in reactor, be heated to while stirring 110～130 ℃, insulation 2.5～3.5h; Then be cooled to 70～80 ℃, add calcium sulfate, aluminium hydroxide, insulation 1～1.5h; Finally be cooled to 30～40 ℃, add cereal starch and urea, mix and get product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614468.5A CN103663639A (en) | 2013-11-28 | 2013-11-28 | Coagulant for treating textile printing and dyeing wastewater and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310614468.5A CN103663639A (en) | 2013-11-28 | 2013-11-28 | Coagulant for treating textile printing and dyeing wastewater and preparation method thereof |
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| CN103663639A true CN103663639A (en) | 2014-03-26 |
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| CN201310614468.5A Withdrawn CN103663639A (en) | 2013-11-28 | 2013-11-28 | Coagulant for treating textile printing and dyeing wastewater and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192963A (en) * | 2014-09-04 | 2014-12-10 | 隋涛 | Coagulant for treating spinning, printing and dyeing wastewater |
| CN104355377A (en) * | 2014-10-21 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage treatment agent and preparation method |
| 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 |
Citations (4)
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|---|---|---|---|---|
| US5453206A (en) * | 1991-05-27 | 1995-09-26 | Modern Environmental Service Trust | Process for removing silica from aqueous liquors |
| CN101050007A (en) * | 2007-04-29 | 2007-10-10 | 武汉理工大学 | Strong effective decoloring decontaminating purifying agent for wastewater of dyestuff, and preparation method |
| CN102344192A (en) * | 2010-12-13 | 2012-02-08 | 新疆德蓝股份有限公司 | Preparation method of special-purposed coagulant used for treating printing and dyeing waste water |
| CN102604116A (en) * | 2012-03-02 | 2012-07-25 | 武汉纺织大学 | Modified starch-chitosan copolymer flocculating agent and preparation method thereof |
-
2013
- 2013-11-28 CN CN201310614468.5A patent/CN103663639A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5453206A (en) * | 1991-05-27 | 1995-09-26 | Modern Environmental Service Trust | Process for removing silica from aqueous liquors |
| CN101050007A (en) * | 2007-04-29 | 2007-10-10 | 武汉理工大学 | Strong effective decoloring decontaminating purifying agent for wastewater of dyestuff, and preparation method |
| CN102344192A (en) * | 2010-12-13 | 2012-02-08 | 新疆德蓝股份有限公司 | Preparation method of special-purposed coagulant used for treating printing and dyeing waste water |
| CN102604116A (en) * | 2012-03-02 | 2012-07-25 | 武汉纺织大学 | Modified starch-chitosan copolymer flocculating agent and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104192963A (en) * | 2014-09-04 | 2014-12-10 | 隋涛 | Coagulant for treating spinning, printing and dyeing wastewater |
| CN104192963B (en) * | 2014-09-04 | 2016-09-07 | 滨州学院 | A kind of process textile printing and dyeing wastewater coagulant |
| CN104355377A (en) * | 2014-10-21 | 2015-02-18 | 苏州富奇诺水治理设备有限公司 | Sewage treatment agent and preparation method |
| 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 |
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Application publication date: 20140326 |