CN101525178A - Processing method of high-temperature dyeing waste water - Google Patents
Processing method of high-temperature dyeing waste water Download PDFInfo
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- CN101525178A CN101525178A CN200810238457A CN200810238457A CN101525178A CN 101525178 A CN101525178 A CN 101525178A CN 200810238457 A CN200810238457 A CN 200810238457A CN 200810238457 A CN200810238457 A CN 200810238457A CN 101525178 A CN101525178 A CN 101525178A
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- waste water
- chemical oxygen
- temperature
- dyeing waste
- persulphate
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Abstract
The invention relates to a processing method of high-temperature dyeing waste water, which is characterized in that chemical oxygen-required amount of high-temperature dyeing waste water is checked, persulphate is thrown into the waste water according to the high-temperature dyeing waste water, and the waste water and the persulphate are stirred. In the reaction process, the chemical oxygen-required amount of the waste water is checked. After the chemical oxygen-required amount reaches the discharging requirement, the waste water is discharged, wherein the temperature of the dyeing waste water is from 60 DEG C to 90 DEG C, the range of the chemical oxygen-required amount is from 40 to 4000 mg/L, and the thrown amount of the persulphate is as following: chemical oxygen-required amount/persulphate_is equal to 1/15 to 20g/g. The invention is characterized in that the temperature of the high-temperature dyeing waste water is not required to be lowered, the processing is direct, and higher temperature can obtain better processing effect. The invention also has the characteristics of simple technology, no additional equipment, low investment, no secondary pollution, short processing time and good processing effect.
Description
Technical field
The invention belongs to techniques of Dyeing Wastewater Treatment, be specifically related to a kind of treatment process of high-temperature dyeing waste water.
Background technology
Along with the development of dyeing, the use of High Temperature High Pressure advection machine and overflow dyeing machine is more and more, and there are 100,000 of advection machine, overflow dyeing machines in China at present, and 1,000,000,000 tons of annual discharging high-temperature dyeing waste waters cause severe contamination to environment.High-temperature dyeing waste water has temperature height (60 ℃～90 ℃), the colourity height, and the chemical oxygen demand (COD) height, biochemical oxygen demand (BOD) is low, the characteristics of biodegradability difference.Higher temperature brings great difficulty for the processing of dyeing waste water.
Treatment method of printing and dying wastewater mainly contains biological process, physico-chemical processes (air supporting method, Coagulation Method, electrochemical process, photocatalytic method etc.).These conventional methods are unsatisfactory to the treatment effect of high-temperature dyeing waste water, generally need Special Equipment to cool off aftertreatment.Treatment process at high-temperature dyeing waste water is less, mainly contains: one, biological process (publication number CN1565991A), and adopt the thermophilic microorganism of domestication to handle waste water, its temperature that is fit to is 40-60 ℃, but being difficult to handle is higher than 60 ℃ dyeing waste water.Two, microwave-ultraviolet catalyzed oxidation-electrochemical oxidation United Technologies (publication number CN1785854A), treatment effect is better, but equipment has high input, and consumes a large amount of electric energy, is difficult to realize large-scale engineering applications.
Summary of the invention
The treatment process that the purpose of this invention is to provide a kind of high-temperature dyeing waste water is to remedy the deficiencies in the prior art.
The present invention utilizes the waste heat of high-temperature dyeing waste water to come the method for degradation treatment waste water.Discover that persulphate ionization in water produces persulfate ion S
2O
8 2-, persulphate is more stable, and speed of reaction is slower at normal temperatures, and is not obvious to organic degradation effect.But under hot conditions (greater than 60 ℃), S
2O
8 2-Can activate and be decomposed into sulfate radical free radical SO
4 -, SO
4 -Standard oxidationreduction potential E
0=+2.5V～+ 3.1V/NHE, the big branch of degradable organic pollutant.The present invention utilizes the waste heat of high-temperature dyeing waste water to activate the SO that persulphate produces strong oxidizing property
4 -, utilize SO
4 -Treatment of dyeing and printing.
Method of the present invention is at first to detect the chemical oxygen demand (COD) of high-temperature dyeing waste water, chemical oxygen demand (COD) according to high-temperature dyeing waste water adds persulphate in waste water again, and stir, in reaction process, detect the chemical oxygen demand (COD) of waste water, after chemical oxygen demand (COD) reaches emission request, waste water is got rid of, wherein the temperature of dyeing waste water is 60-90 ℃, and the chemical oxygen demand weight range is 40-4000mg/L, and the persulphate dosage is chemical oxygen demand (COD)/persulphate=1/15-20g/g.
Characteristics of the present invention are the temperature that do not need to reduce high-temperature dyeing waste water, directly handle, and the high more treatment effect of temperature are good more; Technology is simple, does not need additional equipment, drops into little; Do not produce secondary pollution; Treatment time is short, and treatment effect is good.
Embodiment
At first detect the chemical oxygen demand (COD) of high-temperature dyeing waste water, the chemical oxygen demand (COD) according to waste water adds persulphate again, and stirs.Stirring means can adopt aeration agitation or mechanical stirring.Sampling at regular intervals detects the chemical oxygen demand (COD) of waste water in treating processes, when chemical oxygen demand (COD) reaches emission standard waste water is discharged.Textile dyeing and finishing industrial water pollution thing emission standard GB4287-92 is carried out in the discharging of dyeing waste water.Chemical oxygen demand (COD) is equal to or less than 100mg/L and promptly reaches emission standard.
Embodiment 1
Processing to 60 ℃ of dyeing waste waters.
Azo dye wastewater occupies significant proportion in dyeing waste water, the azo dye wastewater quantity discharged accounts for 2/3 of dyeing waste water quantity discharged at present, and the then typical azoic dyestuff gold orange II of the present invention's choosing is as process object.
Get gold orange II solution 450mL, utilize water bath with thermostatic control that the temperature of gold orange II solution is controlled at 60 ℃, the concentration of gold orange II is 1000mg/L, the detection chemical oxygen demand (COD) is 849mg/L, in solution, add the 16.98g Sodium Persulfate, and stir, after sampling in 4 hours detects the chemical oxygen demand (COD) of gold orange II, reaches emission standard, waste water is discharged.
Experimental result
| Time (hour) | Chemical oxygen demand (COD) (mg/L) |
| 0 | 849 |
| 4 | 628 |
| 8 | 416 |
| 12 | 297 |
| 16 | 169 |
| 24 | 93 |
Embodiment 2
Processing to 90 ℃ of dyeing waste waters.
Get gold orange II solution 450mL, utilize water bath with thermostatic control that the temperature of gold orange II solution is controlled at 90 ℃, the concentration of gold orange II is 1000mg/L, the detection chemical oxygen demand (COD) is 849mg/L, in solution, add the 16.98g Sodium Persulfate, after sampling in 30 minutes detects the chemical oxygen demand (COD) of gold orange II, reaches emission standard, waste water is discharged.
Experimental result
| Time (hour) | Chemical oxygen demand (COD) (mg/L) |
| 0 | 849 |
| 0.5 | 611 |
| 1 | 410 |
| 1.5 | 254 |
| 2 | 152 |
| 2.5 | 85 |
Obviously, the present invention can directly handle the high and low temperature dyeing waste water, reaches emission standard, and the high more treatment effect of temperature is good more.
Claims (3)
1. the treatment process of a high-temperature dyeing waste water, it is characterized in that at first detecting the chemical oxygen demand (COD) of high-temperature dyeing waste water, chemical oxygen demand (COD) according to high-temperature dyeing waste water adds persulphate in waste water again, and stir, in reaction process, detect the chemical oxygen demand (COD) of waste water, after chemical oxygen demand (COD) reaches emission request, waste water is got rid of, wherein the temperature of dyeing waste water is 60-90 ℃, the chemical oxygen demand weight range is 40-4000mg/L, and the persulphate dosage is chemical oxygen demand (COD)/persulphate=1/15-20g/g.
2. the treatment process of high-temperature dyeing waste water as claimed in claim 1 is characterized in that above-mentioned persulphate is peroxy-monosulfate, peroxydisulfate.
3. the treatment process of high-temperature dyeing waste water as claimed in claim 1 is characterized in that above-mentioned stirring means comprises aeration agitation and mechanical stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102384570A CN101525178B (en) | 2008-12-16 | 2008-12-16 | Processing method of high-temperature dyeing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102384570A CN101525178B (en) | 2008-12-16 | 2008-12-16 | Processing method of high-temperature dyeing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101525178A true CN101525178A (en) | 2009-09-09 |
| CN101525178B CN101525178B (en) | 2011-11-16 |
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ID=41093277
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102384570A Expired - Fee Related CN101525178B (en) | 2008-12-16 | 2008-12-16 | Processing method of high-temperature dyeing waste water |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774674B (en) * | 2010-01-10 | 2012-11-07 | 中国海洋大学 | Method for processing refractory organic wastewater by persulfate |
| CN105692776A (en) * | 2016-02-29 | 2016-06-22 | 武汉大学 | Method for dye wastewater treatment through visible light activation of peroxymonosulfate |
| CN106186297A (en) * | 2016-08-31 | 2016-12-07 | 深圳市绿洲生态科技有限公司 | Efficient and energy-saving wastewater treatment method and system |
| CN109110955A (en) * | 2018-08-17 | 2019-01-01 | 中国石油天然气集团有限公司 | A kind of wastewater treatment method |
| CN109485229A (en) * | 2017-09-08 | 2019-03-19 | 湖南大学 | A kind of method that sludge deep conditioning is dehydrated while recycling conditioning activator |
| CN110240253A (en) * | 2019-07-23 | 2019-09-17 | 大连民族大学 | A method of utilizing remaining alkali Heat Treatment purified cotton black liquor |
| CN110255696A (en) * | 2019-07-23 | 2019-09-20 | 大连民族大学 | A kind of system using remaining alkali Heat Treatment purified cotton black liquor |
| CN113387499A (en) * | 2021-07-02 | 2021-09-14 | 东华大学 | Catalytic degradation method for organic pollutants in printing and dyeing wastewater |
-
2008
- 2008-12-16 CN CN2008102384570A patent/CN101525178B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774674B (en) * | 2010-01-10 | 2012-11-07 | 中国海洋大学 | Method for processing refractory organic wastewater by persulfate |
| CN105692776A (en) * | 2016-02-29 | 2016-06-22 | 武汉大学 | Method for dye wastewater treatment through visible light activation of peroxymonosulfate |
| CN106186297A (en) * | 2016-08-31 | 2016-12-07 | 深圳市绿洲生态科技有限公司 | Efficient and energy-saving wastewater treatment method and system |
| CN109485229A (en) * | 2017-09-08 | 2019-03-19 | 湖南大学 | A kind of method that sludge deep conditioning is dehydrated while recycling conditioning activator |
| CN109110955A (en) * | 2018-08-17 | 2019-01-01 | 中国石油天然气集团有限公司 | A kind of wastewater treatment method |
| CN110240253A (en) * | 2019-07-23 | 2019-09-17 | 大连民族大学 | A method of utilizing remaining alkali Heat Treatment purified cotton black liquor |
| CN110255696A (en) * | 2019-07-23 | 2019-09-20 | 大连民族大学 | A kind of system using remaining alkali Heat Treatment purified cotton black liquor |
| CN113387499A (en) * | 2021-07-02 | 2021-09-14 | 东华大学 | Catalytic degradation method for organic pollutants in printing and dyeing wastewater |
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| Publication number | Publication date |
|---|---|
| CN101525178B (en) | 2011-11-16 |
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Granted publication date: 20111116 Termination date: 20131216 |