CN1162346C - Dye adsorbent and its application in treating dye effluent - Google Patents
Dye adsorbent and its application in treating dye effluent Download PDFInfo
- Publication number
- CN1162346C CN1162346C CNB011299681A CN01129968A CN1162346C CN 1162346 C CN1162346 C CN 1162346C CN B011299681 A CNB011299681 A CN B011299681A CN 01129968 A CN01129968 A CN 01129968A CN 1162346 C CN1162346 C CN 1162346C
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- Prior art keywords
- dye
- waste water
- adsorbent
- present
- flocculation agent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Water Treatment By Sorption (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention discloses a dye adsorbent and the application thereof as a flocculant in dye waste water treatment processes. The present invention solves the problems that the filter liquor of the existing decolorization flocculant after the dye containing waste water treatment can not achieve national prescribed direct discharge standards, the flocculant discharge amount is large, etc. After dicyanodiamide, formaldehyde and alum are proportionally mixed, the dye adsorbent of the present invention is a product generated from a reaction at certain temperature. The dye adsorbent of the present invention has good effects on eliminating the color of the dye waste water, the filter liquor chroma of the dye waste water processed by the adsorbent is reduced by 1/100 to 1/40, and then the waste water achieves the direct discharge standards. The dye adsorbent of the present invention has the advantages of low price and little consumption.
Description
Technical field
The present invention relates to a kind of flocculation agent, relate in particular to the flocculation agent of remaining dyestuff in a kind of energy dye wastewater treatment using.
Background technology
In high-chromaticity dye wastewater was handled, removing the waste water from dyestuff color with the flocculation agent of Dyhard RU 100, ammonium chloride and prepared formaldehyde had its special effect.Because the Dyhard RU 100 formaldehyde condensation products has higher cationic charge density, it is by providing a large amount of positively charged ions, make on the dye molecule with negative charge be neutralized and lose stable, and the flocculation agent that is added generates a large amount of flosss because of hydrolysis, dye molecule after its absorption, net for catching fish or birds take off surely, from water, separate together, thereby reach the purpose of decolouring.Chinese patent literature CN1060142C discloses the method for making and the application of this flocculation agent in high-chromaticity dye wastewater is handled of above-mentioned flocculation agent on (the January 3 calendar year 2001 day for announcing).From the document as can be seen, waste water from dyestuff with above-mentioned flocculation agent processing, the colourity height, the percent of decolourization height, colourity is low, percent of decolourization is also low, but no matter be the high chroma or the waste water of low colourity, the filtrate colourity after the processing is still more than 120 times, can not reach the direct emission standard of national regulation, this be since in the above-mentioned flocculation agent Dyhard RU 100 yuban be first aggressiveness, extent of polymerization is less, in waste water to the adsorptive power of dyestuff a little less than, thereby influence its treatment effect, when wastewater temperature was higher, because colorant dissolubility is good, treatment effect was poorer.In addition, handle dyestuff in the waste water with above-mentioned Dyhard RU 100 formaldehyde flocculation agent, injected volume is big, and cost is also higher, and the use of ammonium chloride also can cause secondary pollution.
Summary of the invention
The purpose of this invention is to provide a kind of high adsorption capacity, the flocculation agent of the energy dye wastewater treatment using of good dispersity in water.
Dye wastewater treatment using flocculation agent of the present invention, its component and proportioning are: by weight, and 1 part of Dyhard RU 100, concentration is 1 part of 36% formalin, alum 1-5 part; And make by following method:
(1) above-mentioned Dyhard RU 100, formalin and alum are mixed, heating makes the temperature of mixed system rise to 95-100 ℃, and insulation 1-2 hour stops heating;
(2) take out product, dry down or under the sun, dry at 40-50 ℃;
(3) product is pulverized, with 200-300 purpose sieve.
The proportioning of above-mentioned each component is preferably: 1 part of Dyhard RU 100,1 part of 36% formalin, alum 3-3.5 part.
Dye wastewater treatment using flocculation agent of the present invention is to adopt acidity that alum the has catalyzer as the Dyhard RU 100 oxymethylene polymerization, in Dyhard RU 100 and oxymethylene polymerization process, constantly consume the acidity of alum, its polymerization degree is constantly increased, form superpolymer, and the acidity of alum makes Dyhard RU 100 formaldehyde superpolymer that solubleness preferably be arranged.Flocculation agent of the present invention has stronger adsorptive power, has dispersive ability preferably simultaneously in water again.
Flocculation agent of the present invention is suitable for the processing make waste water from dyestuff, with this flocculation agent with water-wet after, in measuring the pending water of direct adding, stir, have a large amount of flosss to generate immediately, separate with air-float filtration or settling process.
Flocculation agent of the present invention to handling colourity is (for bright-coloured dyestuff such as bright red, gorgeous indigo plant, bright green etc. below 3500 times, its colourity can be relaxed to below 8000 times) any waste water containing dye have fabulous effect, the waste water that adopts flocculation agent of the present invention to handle, the colourity of its filtrate can be reduced to 40-100 doubly, reaches the direct emission standard of national regulation.The injected volume of sorbent material is generally waste water per ton 1.5-3 kilogram.
In addition, behind the flocculation agent absorbing dye of the present invention, in the aqueous solution of alkalescence, can discharge dyestuff, the dyestuff in the waste water is utilized again.
Specific embodiment:
(1) method for making embodiment
Preparation embodiment 1
With 100 gram Dyhard RU 100s, 100 gram concentration are that 36% formalin and 100 gram alum are poured in the reactor together, stir, when temperature of charge rises to 95-100 ℃, be incubated 1.2 hours, stop heating, take out product,, wear into powder 40-50 ℃ of oven dry down, with 300 purpose sieve, promptly get product A.
Preparation embodiment 2
With 100 gram Dyhard RU 100s, 100 gram concentration are that 36% formalin and 350 gram alum are poured in the reactor together, stir, when temperature of charge rises to 95-100 ℃, be incubated 1.5 hours, stop heating, take out product,, wear into powder 40-50 ℃ of oven dry down, with 250 purpose sieve, promptly get product B.
Preparation embodiment 3
With 100 gram Dyhard RU 100s, 100 gram concentration are that 36% formalin and 500 gram alum are poured in the reactor together, stir, when temperature of charge rises to 95-100 ℃, be incubated 1.5 hours, stop heating, take out product,, wear into powder 40-50 ℃ of oven dry down, with 250 purpose sieve, promptly get products C.
(2) Application Example:
Application Example 1
Take from the waste water that substantive dyestuff dyes black, temperature is at 70 ℃, and colourity is 4000 times, this water 1000ml is packed in the beaker, 3 gram product A are added in the beaker after with water-wet, fully stirred 10 minutes, promptly have a large amount of flosss to generate, filtered or leave standstill 12 hours, filtrate or supernatant liquor colourity are 90 times.
Application Example 2
Take from substantive dyestuff and dye wine-colored waste water, temperature is at 80 ℃, colourity is 8000 times, 1000ml pours in the beaker with this water, gets 3 gram sample B, with adding after the water-wet in the beaker, fully stirred 10 minutes, promptly have a large amount of flosss to generate, filtered or leave standstill 12 hours, filtrate or supernatant liquor colourity are 80 times.
Application Example 3
Take from acidity, weak acid dye and dye the waste water of black, temperature is at 80 ℃, colourity is 1500 times, 1000ml pours in the beaker with this water, gets 1.5 gram sample B, with adding after the water-wet in the beaker, fully stirred 10 minutes, promptly have a large amount of flosss to generate, filtered or leave standstill 12 hours, filtrate or supernatant liquor colourity are 50 times.
Application Example 4
Take from substantive dyestuff and dye wine-colored waste water, temperature is at 80 ℃, and colourity is 8000 times, and 1000ml pours in the beaker with this water, gets 3 gram sample C, has floss to generate with adding in the beaker after the water-wet, loseing.
Application Example 5
Take from substantive dyestuff and dye wine-colored waste water, temperature is at 50 ℃, colourity is 8000 times, 1000ml pours in the beaker with this water, gets 3 gram sample C, with adding after the water-wet in the beaker, fully stirred 10 minutes, promptly have a large amount of flosss to generate, filtered or leave standstill 12 hours, filtrate or supernatant liquor colourity are 80 times.
As can be seen from the above embodiments, adopt flocculation agent of the present invention to handle waste water containing dye, the medicament delivery amount is few, and treatment effect is good.When the amount of alum is 3-3.5 times of Dyhard RU 100, this flocculation agent is that 50-100 ℃ waste water effect is still fine to treatment temp, when the amount of alum is 5 times of Dyhard RU 100, this flocculation agent is 50-100 ℃ waste water to treatment temp, weak effect, to treatment temp is 20-50 ℃ waste water, and effect is better.
Flocculation agent of the present invention can also use as laking agent when nylon fabrics dyes.
Claims (2)
1, a kind of flocculation agent of dye wastewater treatment using, its component and proportioning are: by weight, and 1 part of Dyhard RU 100, concentration is 1 part of formalin and alum 1-5 part of 36%; And make by following method:
(1) above-mentioned Dyhard RU 100, formaldehyde and alum are mixed, heating makes mixed system
Temperature rises to 95-100 ℃, is incubated 1-2 hour, stops heating;
(2) take out product, dry down or under the sun, dry at 40-50 ℃;
(3) product is pulverized, with 200-300 purpose sieve.
2, flocculation agent according to claim 1 is characterized in that: the proportioning of described component is: 1 part of Dyhard RU 100, concentration are 1 part of 36% formalin, alum 3-3.5 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011299681A CN1162346C (en) | 2001-11-22 | 2001-11-22 | Dye adsorbent and its application in treating dye effluent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011299681A CN1162346C (en) | 2001-11-22 | 2001-11-22 | Dye adsorbent and its application in treating dye effluent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1348926A CN1348926A (en) | 2002-05-15 |
| CN1162346C true CN1162346C (en) | 2004-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011299681A Expired - Fee Related CN1162346C (en) | 2001-11-22 | 2001-11-22 | Dye adsorbent and its application in treating dye effluent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162346C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100469808C (en) * | 2006-11-21 | 2009-03-18 | 华南理工大学 | Preparation method for instant dicyandiamide formaldehyde resin |
| CN101445283B (en) * | 2008-12-26 | 2012-09-19 | 天津华享水务科技开发有限公司 | Interionic highly-active decolor flocculating agent and application thereof |
| CN102675573B (en) * | 2012-05-17 | 2013-07-31 | 张明 | Meta-acid liquid dicyandiamide-formaldehyde polymer and application thereof in printing and dyeing industry |
| CN103466731B (en) * | 2013-09-27 | 2015-09-16 | 合肥市东方美捷分子材料技术有限公司 | A kind of fiber base sewage decoloring scavenging material and preparation method thereof |
| CN104193011B (en) * | 2014-08-27 | 2016-03-02 | 镇江华域环保设备制造有限公司 | A kind of scavenging agent of dyeing waste water |
| CN113476895B (en) * | 2021-07-13 | 2022-08-26 | 孚迪斯石油化工（葫芦岛）有限公司 | Lubricating oil refining and extracting device |
-
2001
- 2001-11-22 CN CNB011299681A patent/CN1162346C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1348926A (en) | 2002-05-15 |
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Granted publication date: 20040818 |