CN1164513A - Sewage treatment method for paper-making and textile, printing and dyeing industry - Google Patents
Sewage treatment method for paper-making and textile, printing and dyeing industry Download PDFInfo
- Publication number
- CN1164513A CN1164513A CN 96115798 CN96115798A CN1164513A CN 1164513 A CN1164513 A CN 1164513A CN 96115798 CN96115798 CN 96115798 CN 96115798 A CN96115798 A CN 96115798A CN 1164513 A CN1164513 A CN 1164513A
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- Prior art keywords
- sewage
- dyeing
- printing
- weaving
- liming
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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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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention provides a sewage treatment method for paper mill sewage and textile mill, printing and dyeing mill sewage. It is characterized by that the sewage is pumped into water-film dust remover of boiler, thn the lime water prepared in advance is added in the delivered sewage, and after having been passed through precipitating treatment, the treated sewage can be returned to production process for use. Said invented sewage treatment method is low in investment, low in sewage treatment cost, and good in treatment effect.
Description
The present invention relates to the treatment process of industrial sewages such as a kind of papermaking, weaving, printing and dyeing.
Because the lime method paper-making pollution is serious, to administer and pollute required investment height, working cost is up to 1.5 yuan of/ton sewage, and Pollution abatement can not be realized, causes receiving the whole severe contaminations in dirty river, causes serious harm to ecotope.Therefore, relevant department requires to close the little paper mill of lime method below 5000 tons, but this can cause the idleness of equipment, personnel's unemployment, cause serious waste.In addition, the middle section water of alkali paper-making and textile and dyeing industry sewage, scrubbing expense height, the scrubbing effect is also relatively poor.
The method for separating polluted particles that the purpose of this invention is to provide a kind of papermaking wastewater and weaving, dyeing and printing sewage to eliminate the environmental pollution that sewage causes, improves the scrubbing effect, reduces the scrubbing expense.
The present invention realizes like this, the middle section water of lime method papermaking wastewater or alkali paper-making or weaving, dyeing industrial sewage are squeezed into the water dust scrubber of used boiler, it is fallen along the fly-ash separator inwall, after drawing, the liming for preparing in advance is added in the sewage with the ratio that 1 cubic metre of sewage adds 0.1～2kg lime, can be back to use in the production process through post precipitation.
Also can in sewage, add aluminum salt or iron salt coagulant, the liming that will prepare in advance again, the ratio that adds 0.1～2kg lime in 1 cubic metre of sewage is added in the sewage.
Also can earlier the liming for preparing in advance be joined in the sewage, and then add aluminum salt or iron salt coagulant.
This sewage water treatment method less investment, the sewage disposal expense is low, is 1/10 of ordinary method, and scrubbing is effective, can guarantee the sewage fully recovering, and has reduced dust pollution on the environment in the boiler running process in a large number.
Generally speaking, produce the sewage that produces in used boiler and the production process, when carrying out scrubbing, just adapt with this law.
If do not use boiler in the production process, then can adopt aluminum salt or iron salt coagulant to handle, and then add liming and join in the sewage.
Utilize the present invention's method for separating polluted particles, scrubbing is effective, suspension content in the sewage can be reduced to about 100 mg/litre by 3000 mg/litre.
Claims (3)
1, the method for separating polluted particles of a kind of papermaking wastewater and weaving, dyeing and printing sewage, it is characterized in that, the middle section water of lime method papermaking wastewater or alkali paper-making or weaving, dyeing industrial sewage are squeezed into the water dust scrubber of used boiler, it is fallen along the fly-ash separator inwall, after drawing, the liming for preparing is in advance joined in the sewage in 1 cubic metre of ratio that adds 0.1～2kg lime, and post precipitation can be back to use in the production process.
2, the sewage method of removing of a kind of papermaking wastewater as claimed in claim 1 and weaving, dyeing and printing sewage is characterized in that also can add aluminium salt or iron salt coagulant in sewage, the liming that will prepare in advance joins in the sewage again.
3, the method for separating polluted particles of a kind of papermaking wastewater as claimed in claim 1 and weaving, dyeing and printing sewage is characterized in that, also can earlier prefabricated liming be joined in the sewage, and then add aluminium salt or iron salt coagulant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115798 CN1164513A (en) | 1996-05-06 | 1996-05-06 | Sewage treatment method for paper-making and textile, printing and dyeing industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115798 CN1164513A (en) | 1996-05-06 | 1996-05-06 | Sewage treatment method for paper-making and textile, printing and dyeing industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164513A true CN1164513A (en) | 1997-11-12 |
Family
ID=5123015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96115798 Pending CN1164513A (en) | 1996-05-06 | 1996-05-06 | Sewage treatment method for paper-making and textile, printing and dyeing industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164513A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345778C (en) * | 2004-08-18 | 2007-10-31 | 山东泉林纸业有限责任公司 | Method for mixed biochemical treating filtrate and city sewage |
| CN101503268B (en) * | 2009-03-11 | 2011-04-20 | 东莞市珠江海咸水淡化研究所 | Zero discharge processing EBM method for dyeing waste water |
| CN103214116A (en) * | 2013-03-15 | 2013-07-24 | 浙江闰土股份有限公司 | Recycling method of sulfuric acid-containing wastewater from disperse dye production |
-
1996
- 1996-05-06 CN CN 96115798 patent/CN1164513A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345778C (en) * | 2004-08-18 | 2007-10-31 | 山东泉林纸业有限责任公司 | Method for mixed biochemical treating filtrate and city sewage |
| CN101503268B (en) * | 2009-03-11 | 2011-04-20 | 东莞市珠江海咸水淡化研究所 | Zero discharge processing EBM method for dyeing waste water |
| CN103214116A (en) * | 2013-03-15 | 2013-07-24 | 浙江闰土股份有限公司 | Recycling method of sulfuric acid-containing wastewater from disperse dye production |
| CN103214116B (en) * | 2013-03-15 | 2014-03-12 | 浙江闰土股份有限公司 | Recycling method of sulfuric acid-containing wastewater from disperse dye production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |