CN102001735B - Medicament for treating textile printing and dyeing waste water - Google Patents
Medicament for treating textile printing and dyeing waste water Download PDFInfo
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- CN102001735B CN102001735B CN2010105943988A CN201010594398A CN102001735B CN 102001735 B CN102001735 B CN 102001735B CN 2010105943988 A CN2010105943988 A CN 2010105943988A CN 201010594398 A CN201010594398 A CN 201010594398A CN 102001735 B CN102001735 B CN 102001735B
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- textile printing
- waste water
- cationic polyacrylamide
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Abstract
The invention provides a medicament for treating waste water, which belongs to the technical field of sewage treatment. The invention solves the problems that the traditional water purifying agent has unreasonable treatment and matching on printing and dyeing waste water and higher cost and a matching component contains formaldehyde, urea, and the like which can generate secondary pollution on water quality. The medicament for treating textile printing and dyeing waste water comprises the following components in parts by weight: 50-200 parts of flocculant, 0.1-1.0 part of coagulant and 200-400 parts of water. The medicament of the invention has the advantages of reasonable matching among all components, complement of flocculant and coagulant, good effect on treating textile printing and dyeing waste water and low use cost and is suitable for large-scale industrialized production.
Description
Technical field
The present invention relates to a kind of medicament that is used to handle waste water, relate in particular to a kind of medicament that is used to handle textile printing and dyeing wastewater, belong to technical field of sewage.
Background technology
In the last few years along with the development of chemical & blended fabric, the progress of the rise of emulation silk and printing and dyeing finishing technique, dye species also develops towards anti-photodissociation, direction anti-oxidant, the antibiont oxidation on function in increasing.And dyeing waste water belongs to highly difficult trade effluent, and its organic pollutant COD concentration is high, and colourity is dark, belongs to typical trade effluent hard to manage.
In the prior art to wastewater treatment mainly be with single molysite, aluminium salt (like Poly aluminum Chloride (PAC), poly-ferric chloride, polyaluminium sulfate etc.) as chemical floc, be mainly used in Drinking Water, industrial water supply, oil field reinjection water, recirculated cooling water and various sewage (like the decolouring of city domestic sewage, oily(waste)water, dyeing and printing sewage, papermaking wastewater, steel mill's sewage etc.) like polyaluminium sulfate and handle.But because single these flocculation agents of selecting for use exist dosage big; Iron ion in the reuse water, cl ions, sulfate ion content are higher; And many unfavorable factors such as decolorizing effect difference; Not only influence treatment effect, and pipeline, machinery and equipment are had stronger corrodibility, have a strong impact on equipment operation life.
One Chinese patent application (publication number: CN101050007A) disclose a kind of strong effective decoloring decontaminating purifying agent for wastewater; This water purification agent mainly is polymerized by trimeric cyanamide, Tai-Ace S 150, ammonium chloride, formaldehyde, urea and Zulkovsky starch aqueous feed solution, and the shared mass fraction of each raw material is: 2.5 parts of trimeric cyanamides, 0.1 part in Tai-Ace S 150,2 parts of ammonium chlorides, 2 parts in formaldehyde, 1 part in urea, mass concentration are 1 part of the Zulkovsky starch aqueous solution of 20-60%, cationic polyacrylamide aqueous solution 0-0.5 part that mass concentration is 1-6%.Though this water purification agent is better to the treatment of dyeing wastewater effect, because its compatibility is unreasonable, cost is higher, and in the compatibility component, contains meetings such as formaldehyde, urea to water quality generation time pollution.
Summary of the invention
The present invention is directed to the defective that prior art exists, provide that a kind of compatibility is reasonable, cost is low, treatment effect is good, can not produce the medicament that is used to handle textile printing and dyeing wastewater that time pollutes.
The objective of the invention is to realize through following technical proposal: a kind of medicament that is used to handle textile printing and dyeing wastewater, this medicament is grouped into by the one-tenth of following weight part:
Flocculation agent: 50-200 part; Coagulant aids: 0.1-1.0 part;
Water: 200-400 part.
As preferably, described flocculation agent is a polyaluminium sulfate, and described coagulant aids is a cationic polyacrylamide.
The molecular formula of polyaluminium sulfate is: [Al
2(OH)
m(SO
4)
3-]
n, by a certain amount of Al
2(SO
4)
3With Ca (OH)
2Solution reacts at a certain temperature and makes through slaking; The polyaluminium sulfate flocculating effect is superior to Tai-Ace S 150, is mainly used in Drinking Water, industrial water supply, oil field reinjection water, recirculated cooling water and various sewage (like the decolouring of city domestic sewage, oily(waste)water, dyeing and printing sewage, papermaking wastewater, steel mill's sewage etc.) and handles.But the single polyaluminium sulfate of selecting for use exists many unfavorable factors such as dosage is big, sulfate radical content is high, drug cost rising, decolorizing effect difference as flocculation agent.And cationic polyacrylamide (CPAM) can effectively carry out sludge dewatering before mud gets into press filtration, and during dehydration, it is big to produce floc sedimentation, and not sticking filter cloth does not loose during press filtration, and the stream mud cake is thicker, and dewatering efficiency is high, and moisture content of the cake is below 80%.Cationic polyacrylamide all presents electropositivity in acidity or alkaline medium, so the negatively charged sewage of suspended particle in the sewage is carried out flocculation sediment, clarifies very effective.Consumption is few, and is effective, and cost is low, particularly better with the compound result of use of inorganic flocculating agent.The present invention is through adding the cationic polyacrylamide (CPMA) with efficient effect of flocculant in the polyaluminum sulfate aluminum solutions; Reasonable compatibility through two kinds of compositions; Can significantly improve the flocculating effect of single polyaluminium sulfate, decolorizing effect well and obviously reduces drug cost.
At the above-mentioned medicament that is used to handle textile printing and dyeing wastewater, the composition of preferred weight part of this medicament is: polyaluminium sulfate: 80-150 part; Cationic polyacrylamide: 0.2-0.6 part; Water: 250-350 part.Make medicament of the present invention have better treatment effect through further qualification and optimization to textile printing and dyeing wastewater.
But because cationic polyacrylamide (CPAM) solvability in neutrality and alkaline environment is better; But it is water insoluble basically in sour environment; And the polyaluminium sulfate pH value of water solution is between 3.0～3.5; Acidity is stronger, so cationic polyacrylamide (CPAM) is insoluble in the polyaluminum sulfate aluminum water solution, this also is that prior art can't utilize cationic polyacrylamide (CPAM) to be used to handle the one of the main reasons of waste water as coagulant aids.
The present invention divides a jar dissolving with cationic polyacrylamide (CPAM) and polyaluminium sulfate; Treat that cationic polyacrylamide (CPAM) fully is dissolved in water and after overcuring; Utilize spiral pump to be added in the polyaluminum sulfate aluminum water solution again and mix stirring, thereby solved the difficult problem that cationic polyacrylamide (CPAM) is insoluble to the polyaluminum sulfate aluminum water solution, make between the two abundant fusion; Flocculate, help with fixed attention and complement each other, make it be used to handle textile printing and dyeing wastewater and reach optimum medicine efficacy.
In sum, the present invention has the following advantages:
1, compatibility is reasonable between each composition of medicament of the present invention, and flocculation agent and coagulant aids complement each other, and it is effective to handle textile printing and dyeing wastewater.
2, the main harm thing sulfate radical content of medicament of the present invention is lower, and use cost is low, is fit to large-scale industrial production.
Embodiment
Do further bright specifically through specific embodiment to technical scheme of the present invention below; But the present invention is not limited to these embodiment.
Table 1: the weight part of each composition among the embodiment 1-5
Embodiment 1: this is used to handle the concrete preparation method of textile printing and dyeing wastewater medicament
Weight part according to embodiment in the table 11 takes by weighing cationic polyacrylamide (CPAM) and jar dissolving of polyaluminium sulfate branch; Treat that cationic polyacrylamide (CPAM) fully is dissolved in water and after overcuring, utilize spiral pump to be added to again to carry out in the polyaluminum sulfate aluminum water solution thorough mixing to stir and process medicament.
Embodiment 2-4: the weight part according to embodiment 2-4 in the table 1 takes by weighing cationic polyacrylamide (CPAM) and polyaluminium sulfate, and other repeats no more with embodiment 1.
Comparative example 1: adopt golden spring efficient water-purifying agent in the prior art.
It is as shown in table 2 to randomly draw after golden spring efficient water-purifying agent is handled textile printing and dyeing wastewater in medicament that embodiment 1-4 makes and the comparative example 1 the quality of reused water leading indicator.
Table 2: the quality of reused water the key technical indexes relatively after two kinds of chemicals treatment
Can find out from table 2: chemicals treatment textile printing and dyeing wastewater water quality of the present invention has certain improvement, and this medicament satisfies the characteristic of cationic polyacrylamide, and treatment effect is preferable.
Table 3: sulfate radical content relatively (dilutes by former medicine) at 1: 50 in two kinds of medicaments
| Medicament | Gold spring efficient water-purifying agent | Medicament of the present invention |
| Sulfate radical content (mg/l) | 2800 | 2300 |
Can find out from table 3: main harm thing (sulfate radical) content is lower the medicament of the present invention.Compare with golden spring efficient water-purifying agent in the comparative example 1, under the identical water quality situation, the reuse water sulfate radical content reduces by 20% approximately.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some specific embodiments as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (2)
1. medicament that is used to handle textile printing and dyeing wastewater; It is characterized in that; Divide a jar dissolving with cationic polyacrylamide and polyaluminium sulfate; Treat that cationic polyacrylamide fully is dissolved in water and after overcuring, utilize spiral pump to be added to again to mix in the polyaluminum sulfate aluminum water solution and stir and process medicament that described medicament is grouped into by the one-tenth of following weight part:
Polyaluminium sulfate: 50-200 part; Cationic polyacrylamide: 0.1-1.0 part;
Water: 200-400 part.
2. the medicament that is used to handle textile printing and dyeing wastewater according to claim 1 is characterized in that: described medicament is grouped into by the one-tenth of following weight part:
Polyaluminium sulfate: 80-150 part; Cationic polyacrylamide: 0.2-0.6 part;
Water: 250-350 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105943988A CN102001735B (en) | 2010-12-18 | 2010-12-18 | Medicament for treating textile printing and dyeing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105943988A CN102001735B (en) | 2010-12-18 | 2010-12-18 | Medicament for treating textile printing and dyeing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102001735A CN102001735A (en) | 2011-04-06 |
| CN102001735B true CN102001735B (en) | 2012-11-14 |
Family
ID=43809484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105943988A Active CN102001735B (en) | 2010-12-18 | 2010-12-18 | Medicament for treating textile printing and dyeing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102001735B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868910A (en) * | 2006-06-06 | 2006-11-29 | 山东大学 | Polymerized aluminium-polyepichlorohydrin amine inorganic organic composite coagulator and its preparation technology |
| CN1994909A (en) * | 2006-12-30 | 2007-07-11 | 吕建荣 | Printing and dyeing sewage processing method |
-
2010
- 2010-12-18 CN CN2010105943988A patent/CN102001735B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1868910A (en) * | 2006-06-06 | 2006-11-29 | 山东大学 | Polymerized aluminium-polyepichlorohydrin amine inorganic organic composite coagulator and its preparation technology |
| CN1994909A (en) * | 2006-12-30 | 2007-07-11 | 吕建荣 | Printing and dyeing sewage processing method |
Non-Patent Citations (1)
| Title |
|---|
| 骆丽君等.用PAC与PAM复合絮凝剂处理印染废水.《化工时刊》.2003,第17卷(第8期),第49-50页. * |
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|---|---|
| CN102001735A (en) | 2011-04-06 |
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Effective date of registration: 20180130 Address after: 317016 west side of Duan Avenue, Duqiao Town, Linhai, Zhejiang Patentee after: Taizhou donghaixiang Dyeing Co. Ltd. Address before: 317016, Taizhou, Zhejiang City, Jiangsu Province, Du Du Road north west side of the south side of the North Road Patentee before: Donghaixiang Group Co., Ltd. |
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