CN103408124B - Method for treating printing and dyeing wastewater through catalytic oxidation - Google Patents
Method for treating printing and dyeing wastewater through catalytic oxidation Download PDFInfo
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- CN103408124B CN103408124B CN201310338290.6A CN201310338290A CN103408124B CN 103408124 B CN103408124 B CN 103408124B CN 201310338290 A CN201310338290 A CN 201310338290A CN 103408124 B CN103408124 B CN 103408124B
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- waste water
- dyeing waste
- catalytic oxidation
- dyeing wastewater
- printing
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Abstract
The invention relates to a method for treating printing and dyeing wastewater through catalytic oxidation. The method comprises the following steps: adding Co3(PO4)2 and an oxidant into the printing and dyeing wastewater respectively, mixing, and then performing the static settlement or sedimentation to obtain the treated printing and dyeing wastewater. The Co3(PO4)2 is an effective and quick oxidation catalyst, can quickly catalyze peroxide to generate a free radical with a strong oxidizing property, and is enabled to be in oxidation-reduction reaction with dye to achieve the purpose of high reaction speed and high decolourization ratio. The treatment of the printing and dyeing wastewater can be carried out under the natural condition, without illumination.
Description
Technical field
The invention belongs to method of wastewater treatment field, particularly a kind of method of catalytic oxidation treatment dyeing waste water.
Background technology
Along with the development of dyestuffs industries, its problem of environmental pollution brought also becomes increasingly conspicuous, and dyeing waste water is one of main source of environmental pollution, and its quantity discharged is large, colourity is high, degradability is poor.
Another feature of dyeing waste water is that colourity is high, and what have can up to more than 4000 times.So one of vital task of waste water containing dye process is exactly carry out desolventing technology, need to study and select the treatment process being conducive to decolouring for this reason.Wherein, oxidative decoloration method destroys conjugated structure or the chromophoric group of dyestuff, the organism in waste water can be become carbonic acid gas, water and oxynitride etc. simultaneously.In the desolventing technology of dyestuff, the superoxide such as hydrogen peroxide are the oxygenants often used, but when being used alone, oxidation capacity is more weak, and oxidation rate is slow, and remineralization efficacy is not good.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of catalytic oxidation treatment dyeing waste water, the method be one effectively, oxide catalyst fast, strong oxidizing property free radical can be produced by quick catalysis superoxide, make it and dyestuff generation redox reaction, speed of reaction is fast, and percent of decolourization is high; This invention, without the need to illumination, can be carried out under natural condition.
The method of a kind of catalytic oxidation treatment dyeing waste water of the present invention, comprising: in dyeing waste water, add cobaltous phosphate Co respectively
3(PO
4)
2and oxygenant, stir and carry out desolventing technology, then staticly settle or sedimentation, obtain the dyeing waste water after process, wherein the volume ratio of dyeing waste water and oxygenant is 4 ~ 6:1, and the proportioning of cobaltous phosphate and dyeing waste water is 2.0 ~ 25g:1L.
Described oxygenant is one or more in hydrogen peroxide, hydrogen persulfate aqueous solutions of potassium, peroxide acetate aqueous solution.
The mass percent concentration of described oxygenant is 0.5 ~ 10%.
Described churning time is 30 ~ 60min.
Described precipitation or settling time are 30 ~ 60min.
Without the need to considering cobaltous phosphate Co in wastewater treatment
3(PO
4)
2with the addition sequence of oxygenant.
The invention discloses a kind of method of catalytic oxidation treatment dyeing waste water, the method utilizes cobaltous phosphate Co
3(PO
4)
2as oxide catalyst, quick catalysis superoxide produces strong oxidizing property free radical, and reaction probabilities between strong oxidative free radical and absorbing dye is increased, thus Quick Oxidation disperse dyes, reach the effect of high speed mineralising.The dyeing waste water percent of decolourization of this disposal methods is high, decolorization rate is high, and whole process operation is simple, to equipment and reaction conditions without particular requirement, in the process of dyeing and finishing wastewater, has good application prospect.
beneficial effect
(1) cobaltous phosphate Co used in the present invention
3(PO
4)
2be one effectively, oxide catalyst fast, can produce strong oxidizing property free radical by quick catalysis superoxide, make it and dyestuff generation redox reaction, speed of reaction is fast, and percent of decolourization is high;
(2) cobaltous phosphate Co used in the present invention
3(PO
4)
2in water, solubleness is low, therefore easily separated, reusable, can greatly reduce oxidative decoloration cost;
(3) the present invention is without the need to considering adding and reaction sequence of all ingredients;
(4) the present invention uses conventional equipment and device, without the need to carrying out special transformation to equipment;
(5) the present invention is without the need to illumination, can carry out under natural condition.
Embodiment
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
The cobaltous phosphate Co of 5g/L is added in the dyeing waste water of 40ml containing reactive brilliant bule KN-19
3(PO
4)
2, add the hydrogen peroxide that 10ml concentration is 5.0% afterwards, stir 40 minutes, after decoloring reaction completes, standing sedimentation 40 minutes, dye liquor percent of decolourization reaches more than 90%.
Embodiment 2
In the dyeing waste water of 40ml containing tropeolin-D, add the hydrogen peroxide that 10ml concentration is 0.5%, add the cobaltous phosphate Co of 25g/L afterwards
3(PO
4)
2, stir 50 minutes, after decoloring reaction completes, standing sedimentation 40 minutes, dye liquor percent of decolourization reaches more than 90%.
Embodiment 3
In the dyeing waste water of 40ml containing rhodamine B, add the hydrogen persulfate aqueous solutions of potassium that 10ml concentration is 10.0%, add the cobaltous phosphate Co of 9g/L afterwards
3(PO
4)
2, stir 30 minutes, after decoloring reaction completes, standing sedimentation 30 minutes, dye liquor percent of decolourization reaches more than 85%.
Claims (4)
1. a method for catalytic oxidation treatment dyeing waste water, comprising: in dyeing waste water, add cobaltous phosphate Co respectively
3(PO
4)
2and oxygenant, stir and carry out desolventing technology, then staticly settle or sedimentation, obtain the dyeing waste water after process, wherein the volume ratio of dyeing waste water and oxygenant is 4 ~ 6:1, and the proportioning of cobaltous phosphate and dyeing waste water is 2.0 ~ 25g:1L; Wherein oxygenant is one or both in hydrogen peroxide, hydrogen persulfate aqueous solutions of potassium.
2. the method for a kind of catalytic oxidation treatment dyeing waste water according to claim 1, is characterized in that: the mass percent concentration of described oxygenant is 0.5 ~ 10%.
3. the method for a kind of catalytic oxidation treatment dyeing waste water according to claim 1, is characterized in that: the time of described stirring is 30-60min.
4. the method for a kind of catalytic oxidation treatment dyeing waste water according to claim 1, is characterized in that: the time of described precipitation or sedimentation is 30-60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338290.6A CN103408124B (en) | 2013-08-05 | 2013-08-05 | Method for treating printing and dyeing wastewater through catalytic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310338290.6A CN103408124B (en) | 2013-08-05 | 2013-08-05 | Method for treating printing and dyeing wastewater through catalytic oxidation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103408124A CN103408124A (en) | 2013-11-27 |
| CN103408124B true CN103408124B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310338290.6A Expired - Fee Related CN103408124B (en) | 2013-08-05 | 2013-08-05 | Method for treating printing and dyeing wastewater through catalytic oxidation |
Country Status (1)
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|---|---|
| CN (1) | CN103408124B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991944A (en) * | 2014-05-20 | 2014-08-20 | 东华大学 | Water treatment method for inorganic anionic active persulfate |
| CN105906102B (en) * | 2016-06-11 | 2019-03-05 | 华南理工大学 | A kind of method of cobalt phosphate lithium activation monopersulfate salt degradation of organic waste water |
| CN107720929A (en) * | 2017-11-15 | 2018-02-23 | 太原工业学院 | A kind of method for handling Methyl Orange in Wastewater |
| CN108002513A (en) * | 2018-01-11 | 2018-05-08 | 苏州科技大学 | A kind of method for activating organic peroxide degradation of dye waste water |
| CN113145145A (en) * | 2021-04-06 | 2021-07-23 | 北京化工大学 | Cobalt phosphate catalyst capable of efficiently activating PMS (permanent magnet synchronous motor), and preparation method and application thereof |
Citations (5)
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|---|---|---|---|---|
| US3228966A (en) * | 1963-11-12 | 1966-01-11 | Shell Oil Co | Dimethyl furan production from mesityl oxide |
| US4552986A (en) * | 1980-09-05 | 1985-11-12 | Mitsubishi Gas Chemical Company, Inc. | Process for preparation of ethanol |
| CN100999337A (en) * | 2006-12-31 | 2007-07-18 | 哈尔滨工业大学 | Preparation method of hydroxylation cobalt and its application in water treatment |
| CN101182288A (en) * | 2007-12-05 | 2008-05-21 | 浙江大学 | Method for oxo isophorone by heterogeneous oxidization |
| CN102527417A (en) * | 2010-12-23 | 2012-07-04 | 彭文兵 | Hydrotreating catalyst |
-
2013
- 2013-08-05 CN CN201310338290.6A patent/CN103408124B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3228966A (en) * | 1963-11-12 | 1966-01-11 | Shell Oil Co | Dimethyl furan production from mesityl oxide |
| US4552986A (en) * | 1980-09-05 | 1985-11-12 | Mitsubishi Gas Chemical Company, Inc. | Process for preparation of ethanol |
| CN100999337A (en) * | 2006-12-31 | 2007-07-18 | 哈尔滨工业大学 | Preparation method of hydroxylation cobalt and its application in water treatment |
| CN101182288A (en) * | 2007-12-05 | 2008-05-21 | 浙江大学 | Method for oxo isophorone by heterogeneous oxidization |
| CN102527417A (en) * | 2010-12-23 | 2012-07-04 | 彭文兵 | Hydrotreating catalyst |
Non-Patent Citations (1)
| Title |
|---|
| Efficient decolorization of azo dye Reactive Black B involving aromatic fragment degradation in buffered Co2+/PMS oxidative processes with a ppb level dosage of Co2+-catalyst;Yao-Hui Huang等;《Journal of Hazardous Materials》;20091030;第170卷(第2-3期);摘要、第1111页左栏第3段至第1117页左栏最后1段 * |
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| CN103408124A (en) | 2013-11-27 |
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