CN101381114A - Processing method of dyeing mercerizing waste water - Google Patents
Processing method of dyeing mercerizing waste water Download PDFInfo
- Publication number
- CN101381114A CN101381114A CNA2008101548681A CN200810154868A CN101381114A CN 101381114 A CN101381114 A CN 101381114A CN A2008101548681 A CNA2008101548681 A CN A2008101548681A CN 200810154868 A CN200810154868 A CN 200810154868A CN 101381114 A CN101381114 A CN 101381114A
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- CN
- China
- Prior art keywords
- waste water
- water
- mercerization
- alkaline
- flue gas
- 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.)
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Abstract
The invention relates to a method for processing dye printing mercerization waste water, which relates to the technical field of the treatment on textile dye printing waste water, in particular to the treatment on high-concentration alkaline waste water. The method comprises the following steps: adjusting the mercerization waste water through an alkaline water pond first to form mercerization alkaline water; pumping the mercerization alkaline water into a water film deduster and then making the mercerization alkaline water into an atomized state through an atomizer and sprayed from top to bottom, and fully mixing flue gas from a coal-fired thermal power plant with water fog from bottom to top simultaneously. The method uses acid flue gas generated by firing coal in the thermal power plant, and uses an efficient spray device to make the mercerization alkaline waste water fully contact and mix with the flue gas, so as to reach the aim of reducing the pH value, and achieve the treatment of wastes with the processes of wastes against one another and win-win effect of economic benefit and environment benefit.
Description
Technical field
Relate to the improvement technical field of textile printing and dyeing wastewater in invention, particularly to the improvement of high concentration alkali wastewater.
Background technology
Use caustic soda in a large number owing to operations such as putting mercerising in order in the textile printing and dyeing wastewater, pH value is up to more than 12 in the sewage, have to use a large amount of acid solutions to carry out the PH neutralization in the sewage treatment process because the pH value height causes, otherwise, cause bacterial classification death because high pH value influences the activity of biological inoculum.
Existing treatment process is: alkaline mercerizing waste water enters sewage plant, adds 98%H
2SO
4Enter the sewage disposal biochemical system behind PH after neutralizing≤10.5, consume 4～5 tons of sulfuric acid every day, increased sewage disposal running cost.
And a large amount of CO of generation in heat power plant's coal-fired process
2, NOx, SO
2Deng sour gas, carry out the desulfurization processing and need add lime under these gas normal circumstancess.
Summary of the invention
It is big to the objective of the invention is to solve textile printing and dyeing mercerizing waste water discharging alkalescence, a kind of treatment process that can save the dyeing waste water of the coal-fired acid smoke evacuation of heat power plant again.
The present invention earlier regulates mercerizing waste water through potass pool, form the mercerising buck, the mercerising buck is pumped into water dust scrubber after, by spray generator the mercerising buck is formed atomize again, from top to bottom spray, simultaneously, the flue gas of coal-fired thermal power factory is from bottom to top carried out thorough mixing with water smoke.
The present invention utilizes the coal-fired acidic flue gas that produces of heat power plant, utilizes efficient spray device, allows alkaline mercerizing waste water fully contact mixing with flue gas, reaches and reduces the pH value purpose, accomplishes the treatment of wastes with processes of wastes against one another, economic benefit and environmental benefit doulbe-sides' victory.
Handle ultimate principle: produce a large amount of CO in the coal-fired process
2, NOx, SO
2Deng sour gas, these gases respectively with the mercerising buck in NaOH react.
2NaOH+CO
2→Na
2CO
3+H
2O
2NaOH+SO
2→Na
2SO
3+H
2O
2Na
2SO
3+O
2→2Na
2SO
4
The present invention has following characteristics:
(1) demonstrates fully the treatment of wastes with processes of wastes against one another, the comprehensive utilization principle.The flue gas that produces in waste lye that produces in the mercerising process and the coal-fired process all belongs to waste water, the waste gas that will administer, and this technology is with both ingenious combination comprehensive utilizations, and the treatment of wastes with processes of wastes against one another demonstrates fully environmental protection concept, doulbe-sides' victory.
(2) economic benefit and obvious environment benefit, SO
2Clearance reaches 60%～80%, and knitting enterprise with a medium-sized look is example, can save nearly 2,000,000 yuan of expenses every year.
(3) in unique and mode.Should in and ortho-water film dust-remover mode different with mode, but utilize the novel atomizing device that buck is formed spray form, increased sewage and flue gas in area and duration of contact, make SO
2Removal effect improves 10%～20%.
(4) this technology scope of application is wider.
Embodiment
1, acid mercerizing waste water is regulated through potass pool earlier, formed the mercerising buck.
2, the mercerising buck is pumped into water dust scrubber after, by spray generator the mercerising buck is formed atomize again, from top to bottom spray, simultaneously, the flue gas of coal-fired thermal power factory is from bottom to top carried out thorough mixing with water smoke.
Claims (1)
1, a kind of treatment process of dyeing mercerizing waste water, mercerizing waste water is regulated through potass pool earlier, form the mercerising buck, after it is characterized in that the mercerising buck pumped into water dust scrubber, by spray generator the mercerising buck is formed atomize again, from top to bottom spray, simultaneously, the flue gas of coal-fired thermal power factory is from bottom to top carried out thorough mixing with water smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101548681A CN101381114A (en) | 2008-10-17 | 2008-10-17 | Processing method of dyeing mercerizing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101548681A CN101381114A (en) | 2008-10-17 | 2008-10-17 | Processing method of dyeing mercerizing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101381114A true CN101381114A (en) | 2009-03-11 |
Family
ID=40461199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101548681A Pending CN101381114A (en) | 2008-10-17 | 2008-10-17 | Processing method of dyeing mercerizing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101381114A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143228A (en) * | 2013-03-29 | 2013-06-12 | 广东大众农业科技股份有限公司 | Method for purifying air at low cost |
| CN109110965A (en) * | 2018-09-10 | 2019-01-01 | 海宁中龙印染有限公司 | A kind of dyeing waste water exhaust treatment system |
| CN109647856A (en) * | 2018-12-25 | 2019-04-19 | 新疆富丽达纤维有限公司 | A kind of chemical fibre station-service waste silk processing system and its workflow |
-
2008
- 2008-10-17 CN CNA2008101548681A patent/CN101381114A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143228A (en) * | 2013-03-29 | 2013-06-12 | 广东大众农业科技股份有限公司 | Method for purifying air at low cost |
| CN109110965A (en) * | 2018-09-10 | 2019-01-01 | 海宁中龙印染有限公司 | A kind of dyeing waste water exhaust treatment system |
| CN109110965B (en) * | 2018-09-10 | 2021-05-28 | 海宁中龙印染有限公司 | Printing and dyeing wastewater and waste gas treatment system |
| CN109647856A (en) * | 2018-12-25 | 2019-04-19 | 新疆富丽达纤维有限公司 | A kind of chemical fibre station-service waste silk processing system and its workflow |
| CN109647856B (en) * | 2018-12-25 | 2022-03-29 | 新疆富丽达纤维有限公司 | Chemical fiber factory waste silk processing system and work flow thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090311 |