CN102115248A - Method for treating anionic dye-containing waste water - Google Patents
Method for treating anionic dye-containing waste water Download PDFInfo
- Publication number
- CN102115248A CN102115248A CN 201110086657 CN201110086657A CN102115248A CN 102115248 A CN102115248 A CN 102115248A CN 201110086657 CN201110086657 CN 201110086657 CN 201110086657 A CN201110086657 A CN 201110086657A CN 102115248 A CN102115248 A CN 102115248A
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- CN
- China
- Prior art keywords
- waste water
- anionic dye
- dyestuff
- flue gas
- containing waste
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- 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.)
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- Treating Waste Gases (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a method for treating anionic dye-containing waste water, which comprises: adding 20 to 200 grams of limestone with a particle size of 1 to 15 millimeters into 1 liter of anionic dye-containing waste water; introducing 40 to 80 liters of dedusted boiler flue gas into the anionic dye-containing waste water by using a microporous aeration head, wherein dye aggregates gradually with the dissolution of the limestone; and finally, stopping introducing the flue gas to allow the aggregated dye to settle down gradually and separating. In the invention, the limestone which is cheap and readily available is used as a raw material, the operation is simple, the anionic dye can be removed effectively, and thus, pollutant in water and boiler flue gas can be removed at the same time.
Description
Technical field
The present invention relates to a kind of treatment process that contains anionic dye waste water, belong to technical field of sewage in the environment protection.
Background technology
Textile printing and dyeing industry is the industrial wastewater discharge rich and influential family, and according to incompletely statistics, national dyeing waste water quantity discharged every day is 300～4,000,000 tons.Waste water contains multiple dyestuff, and this waste water characteristic is organic concentration height, complicated component, biodegradability is poor, colourity is high and changeable, water quality and quantity changes greatly, belongs to more unmanageable trade effluent.It is aromatic hydroxy compound and heterogeneous ring compound that the raw material major part that drops into is produced in printing and dyeing, thereby the waste water overwhelming majority who makes in the production process to be discharged is with the organism of aromatophores such as benzene, naphthalene, anthracene, quinone as parent, have the colour developing group, color is very dark, colourity reaches 500-500000, has a strong impact on urban look.Therefore, the processing of research printing and dyeing and waste water from dyestuff is to preserving the ecological environment and human health has very important significance.Because dyestuff generally all has bio-toxicity, physics commonly used or chemical method are handled in the engineering, as: absorption method, flocculent precipitation, electrolytic process and oxidation style etc.This several method has shortcomings such as cost height and timeliness weak point.
Boiler smoke is the tail gas of discharging behind the bunker coal, in the primary energy consumption structure of China, fire coal account for that total energy consumes more than 70%, and the SO that produces by fire coal
2Account for national SO
290% of total release.Therefore, fire coal boiler fume is carried out desulfurization, control SO
2Discharging be an urgent demand of China's economy and social development.70% NO
xAlso come spontaneous combustion coal.In order to control SO
2And NO
xPollution, country has proposed to subtract the sulphur target to Eleventh Five-Year Plan, though promptly along with the increase of the national economic development and coal consumption total amount, and SO
2The total amount of total emission volumn than 05 year descend 10%, and propose to issue the policies and regulations and the ambient quality standard of a series of strictnesses, all thermal power plants do not go up the project of desulfurization and disapprove, that has built will add desulfurizing item, can not qualified discharge to add SO
2Effluent charge 200-500 unit/KW to the fume emission of all types of industries boiler, has also formulated corresponding standard.Except SO
2And NO
xOutward, CO
2Also be comparatively serious pollutent, its Greenhouse effect can cause Global warming, are the focus that the whole world is paid close attention at present.
Summary of the invention
The purpose of this invention is to provide the low and effective treatment process that contains anionic dye waste water of a kind of cost.
The technical solution used in the present invention is as follows: 1) be with size 1 mm ~ 15 mm, quality be 20 ~ 200 g Wingdale be added to 1 L and contain in the anionic dye waste water; 2) feed the dust separating boiler smoke of 40 ~ 80 L with micro porous aeration head in the anionic dye waste water toward containing, along with the dissolving of Wingdale, dyestuff produces reunion gradually; 3) stop to feed flue gas, the dyestuff of reunion precipitates gradually, separates getting final product again.
The mechanism of action of the present invention is: utilize sour gas contained in the boiler smoke such as SO
2, NO
xAnd CO
2Reaction in water is such as producing SO
3 2-, NO
3 -And CO
3 2-, further produce the Ca (NO of solubility again with Wingdale
3)
2And Ca (HCO
3)
2And the relatively poor CaSO of solvability
3, anionic dyestuff and free Ca
2+Ion complexation takes place and reunite final precipitated removal.The CaSO of Sheng Chenging wherein
3Though solubleness is relatively poor, calcium ion is difficult to be utilized by the dyestuff complexing, SO in this process
2Can be removed, simultaneously the CaSO of Sheng Chenging
3Particle has certain adsorption, can assist the removal of dyestuff.
The invention has the beneficial effects as follows:
1, can effectively remove the anionic dyestuff, realize that pollutent is removed simultaneously in water pollutant and the boiler smoke, purify boiler smoke.
2, Wingdale is cheap and easy to get as raw material, and is simple to operate.
Embodiment
With size is that 1 mm ~ 15 mm, quality are that the Wingdale of 20 ~ 200 g is added to 1 L and contains in the anionic dye waste water, utilize micro porous aeration head to contain and feed the dust separating boiler smoke of 40 ~ 80 L in the anionic dye waste water toward this, dissolving along with Wingdale, dyestuff produces reunion gradually, after stopping to feed flue gas, the dyestuff of reuniting precipitates gradually, separates getting final product again.
3 embodiment of the present invention below are provided:
Embodiment 1
With quality is that 20 g, size are that the Wingdale of 1 mm is added to 1 L and contains in the waste water of 30mg/L anionic dyestuff gold orange II, utilize micro porous aeration head in waste water, to feed the dust separating flue gas of 40 L, dissolving along with Wingdale, dyestuff produces reunion gradually, after stopping to feed flue gas, the dyestuff of reunion precipitates gradually, separates the back and measures gold orange II concentration in the waste water, be 1.5 mg/L, clearance is 95%.
Embodiment 2
With quality is 200 g, size is that the Wingdale of 15 mm is added to and is equipped with in the waste water that 1 L contains 40mg/L anionic dyestuff gold orange G, utilize micro porous aeration head in waste water, to feed the dust separating flue gas of 80 L, along with the dissolving of Wingdale, dyestuff produces reunion gradually, after stopping to feed flue gas, the dyestuff of reuniting precipitates gradually, separating the back and measure gold orange G concentration in the waste water, is 0.9 mg/L, and clearance is 97%.
Embodiment 3
With quality is that 100 g, size are that the Wingdale of 10 mm is added to and is equipped with in the waste water that 1L contains 30mg/L anionic dyestuff reactive brilliant yellow, utilize micro porous aeration head in waste water, to feed the dust separating flue gas of 70 L, dissolving along with Wingdale, dyestuff produces reunion gradually, after stopping to feed flue gas, the dyestuff of reunion precipitates gradually, separates the back and measures reactive brilliant yellow concentration in the waste water, be 1.2 mg/L, clearance is 96%.
Claims (1)
1. treatment process that contains anionic dye waste water is characterized in that as follows:
1) with size be 1 mm ~ 15 mm, quality be 20 ~ 200 g Wingdale be added to 1 L and contain in the anionic dye waste water;
2) feed the dust separating boiler smoke of 40 ~ 80 L with micro porous aeration head in the anionic dye waste water toward containing, along with the dissolving of Wingdale, dyestuff produces reunion gradually;
3) stop to feed flue gas, the dyestuff of reunion precipitates gradually, separates getting final product again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100866570A CN102115248B (en) | 2011-04-07 | 2011-04-07 | Method for treating anionic dye-containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100866570A CN102115248B (en) | 2011-04-07 | 2011-04-07 | Method for treating anionic dye-containing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102115248A true CN102115248A (en) | 2011-07-06 |
| CN102115248B CN102115248B (en) | 2012-05-30 |
Family
ID=44214191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100866570A Active CN102115248B (en) | 2011-04-07 | 2011-04-07 | Method for treating anionic dye-containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102115248B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005014487A1 (en) * | 2003-08-09 | 2005-02-17 | Park, Tae-Hyok | Treating composition and method for wastewater or sewage and cleaning composition and method for air |
| CN101091874A (en) * | 2007-05-30 | 2007-12-26 | 胡俊华 | Method for flue gas desulfurization by using dyeing wastewater, and absorption tower |
| CN101816889A (en) * | 2009-12-25 | 2010-09-01 | 浙江天蓝环保技术有限公司 | Desulphurization process by combining printing and dyeing wastewater |
-
2011
- 2011-04-07 CN CN2011100866570A patent/CN102115248B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005014487A1 (en) * | 2003-08-09 | 2005-02-17 | Park, Tae-Hyok | Treating composition and method for wastewater or sewage and cleaning composition and method for air |
| CN101091874A (en) * | 2007-05-30 | 2007-12-26 | 胡俊华 | Method for flue gas desulfurization by using dyeing wastewater, and absorption tower |
| CN101816889A (en) * | 2009-12-25 | 2010-09-01 | 浙江天蓝环保技术有限公司 | Desulphurization process by combining printing and dyeing wastewater |
Non-Patent Citations (2)
| Title |
|---|
| 《Journal of Hazardous Materials》 20101222 Jianfeng Ma et al Machanism of adsorption of anionic dye from aqueous solution onto organobentonite 第1758-1765页 1 第186卷, 2 * |
| 《荆门职业技术学院学报》 20090228 粟学俐等 循环流化床锅炉脱硫技术进展 第89-93页 1 第24卷, 第2期 2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102115248B (en) | 2012-05-30 |
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Owner name: LIYANG CHANGDA TECHNOLOGY TRANSFER CENTER CO., LTD Free format text: FORMER OWNER: CHANGZHOU UNIVERSITY Effective date: 20141128 |
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Free format text: CORRECT: ADDRESS; FROM: 213164 CHANGZHOU, JIANGSU PROVINCE TO: 213311 CHANGZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141128 Address after: Daitou town of Liyang City Ferry Street 213311 Jiangsu city of Changzhou province 8-2 No. 7 Patentee after: Liyang Chang Technology Transfer Center Co., Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: Changzhou University |