CN102464389A - Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof - Google Patents
Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof Download PDFInfo
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- CN102464389A CN102464389A CN2011103193159A CN201110319315A CN102464389A CN 102464389 A CN102464389 A CN 102464389A CN 2011103193159 A CN2011103193159 A CN 2011103193159A CN 201110319315 A CN201110319315 A CN 201110319315A CN 102464389 A CN102464389 A CN 102464389A
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Abstract
The invention discloses a decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and an application method thereof. A preparation method for the decoloring flocculant comprises the following steps of: (1) continuously stirring 50-80% by weight of inorganic high molecular flocculant in a breaker and heating for 5-10min; (2) adding 9-45% by weight of sulfate into the breaker, stirring for 10-30min at medium speed; (3) adding 0.01-0.05% by weight of quick sinking agent into the above substances, stirring, standing, depositing, and taking supernatant; (4) adding 5-10% by weight of surfactant into the supernatant to form an emulsion; and (5) diluting the emulsion by 10 times via distilled water to obtain clear transparent light yellow liquid. The transparent light yellow liquid in percentage by weight of 0.1-0.2% is added into the bright red soluble azo dye printing and dyeing wastewater, and the wastewater is quickly stirred for 1-3min at a speed of 300r/min, stirred for 10-15min at a speed of 80r/min, stood and deposited to obtain the colorless transparent printing and dyeing wastewater as the yielding water.
Description
Technical field
The present invention relates to a kind of preparation method of decoloration flocculating agent of dyeing wastewater, relate in particular to a kind of decolor flocculating agent preparation and application method thereof of handling the solvability azo dye printing and dyeing wastewater, belong to the treatment of dyeing wastewater field.
Background technology
Development along with 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 the function in increasing, thereby solvability dye printing and dyeing wastewater decolouring intractability is strengthened.Therefore, processing has extremely important meaning to a kind of flocculation agent that special efficacy decolouring function arranged of research to the solvability azo dye printing and dyeing wastewater.
At present; The method of treatment of dyeing and printing decolouring is a lot, such as: the organic polymer coargulator of (1) organic floculant, especially synthetic; It is of a great variety; Have excellent performance, still, it is restricted in application because of the restriction of the aspects such as toxicity of residual monomer in price, some compound bodies; (2) the charcoal absorption decolouring technology is not suitable for the one-level processing of dyeing waste water, can only be used for degree of depth decolouring and handle, and the activated carbon treatment cost is high, and regeneration is difficult; (3) coal, slag sorbent material, raw material sources are wide, and cost is low, but has secondary pollution after the treatment of dyeing and printing, so only be fit to unite use with methods such as biochemical process or sand filtrations; (4) Coagulation Method also is one of dye wastewater treatment using efficient ways, but adopts conventional flocculation agent to handle the waste water from dyestuff of complicated component, and is unsatisfactory to the removal effect of wherein hydrophilic dye such as substantive dyestuff, matching stain and cationic dyestuff etc.Therefore these methods all are not suitable for the processing of solvability azo dye printing and dyeing wastewater, develop a kind of decolor flocculating agent inexpensive, nontoxic, that can effectively handle the solvability azo dye printing and dyeing wastewater and are one problem to be solved is arranged.
For example: publication number is that CN101254970B, name are called " a kind of decolor flocculating agent " though preparing method's processing unit of the said decolor flocculating agent of patent is simple, operational safety; But this product cost is more expensive; The scope of application is wideless; Decolorizing efficiency is lower, is inappropriate for the dyeing waste water of handling the solvability azoic dyestuff; Publication number is that CN1951833B, name are called the described preparation method of " a kind of organic-inorganic copolymerized decolorized flocculant and preparation method " patent; Technology is complicated; The decoloring dye waste water efficient higher for concentration is lower, generally only is applied to the lower dye wastewater treatment of concentration, and for medium-sized and small enterprises; Often need low price, the preparation method that starting material are easy to get, decolorizing efficiency is high comes treatment of dyeing and printing.
For overcoming problems such as complex process, cost is higher, decolorizing efficiency is lower; The invention provides a kind of flocculation agent that special efficacy decolouring function is arranged; This decolor flocculating agent alumen ustum formation time is short; Floc particle is big, and the flocculation agent consumption is few, for solvability azo dye printing and dyeing wastewater percent of decolourization up to 99.9% with first-class characteristics.
Summary of the invention
In order to overcome problems such as complex process, cost is higher, decolorizing efficiency is lower, the present invention a kind of flocculation agent that special efficacy decolouring function is arranged is provided, this decolor flocculating agent technology is simple; Starting material are easy to get, and cost is lower, non-secondary pollution; The alumen ustum formation time is short; Floc particle is big, and the flocculation agent consumption is few, for solvability azo dye printing and dyeing wastewater percent of decolourization up to 99.9% with first-class characteristics.
The technical scheme that this decolor flocculating agent adopts is:
(1) getting mass ratio is that 50%～80% inorganic polymer flocculant constantly stirs in beaker and heats 5～10min;
(2) be 9%～45% vitriol to wherein dropping into mass ratio, middling speed stirs 10～30min;
(3) in above-mentioned substance, adding mass ratio is 0.1 ‰～0.5 ‰ acceleration sinking agent, stirs, staticly settles, and treats the complete post precipitation of insoluble substance in the inorganic polymer flocculant, filters, and gets supernatant liquid;
(4) in supernatant, adding mass ratio is 5%～10% tensio-active agent, stirs 10～30min fast with 800r/min, dissolves fully to tensio-active agent, forms milk sap;
(5) with milk sap with 10 times of distilled water dilutings, obtain the clear weak yellow liquid.
Described inorganic polymer flocculant is any in poly-ferric chloride, aluminium iron polychloride, the bodied ferric sulfate.
Described vitriol is any in sodium sulfate, vitriolate of tartar, sal epsom, ferric sulfate, the Tai-Ace S 150.
Described acceleration sinking agent is the described acceleration sinking agent of this author disclosure of an invention CN101786647A patent.
Described tensio-active agent is one or both in octadecyl bromination ammonium, Witco 1298 Soft Acid, sodium cetanesulfonate, the sodium lauryl sulphate.
The application method of the decolor flocculating agent of this processing solvability azo dye printing and dyeing wastewater is: with mass ratio is that 1 ‰～2 ‰ transparent weak yellow liquid joins in the scarlet solvability azo dye printing and dyeing wastewater; Behind the quick stirring of 300r/min 1～3min; Stir 10～15min with 80r/min again; Staticly settle, water outlet is the water white transparency dyeing waste water.
Method of the present invention is compared the advantage and the effect that are had with existing method:
(1) technology is simple, and starting material are easy to get, and cost is lower;
(2) non-secondary pollution, the flocculation agent consumption is few;
(3) the alumen ustum formation time is short in the whipping process, and floc particle is big;
(4) water outlet is the water white transparency dyeing waste water, and percent of decolourization is up to more than 99.9%.
Embodiment
The preparation process of decolor flocculating agent of the present invention is:
(1) getting mass ratio is that 50%～80% inorganic polymer flocculant constantly stirs in beaker and heats 5～10min;
(2) be 9%～45% vitriol to wherein dropping into mass ratio, middling speed stirs 10～30min;
(3) in above-mentioned substance, adding mass ratio is 0.1 ‰～0.5 ‰ acceleration sinking agent, stirs, staticly settles, and treats the complete post precipitation of insoluble substance in the inorganic polymer flocculant, filters, and gets supernatant liquid;
(4) in supernatant, adding mass ratio is 5%～10% tensio-active agent, stirs 10～30min fast with 800r/min, dissolves fully to tensio-active agent, forms milk sap;
(5) with milk sap with 10 times of distilled water dilutings, obtain the clear weak yellow liquid.
Described inorganic polymer flocculant is any in poly-ferric chloride, aluminium iron polychloride, the bodied ferric sulfate.
Described vitriol is any in sodium sulfate, vitriolate of tartar, sal epsom, ferric sulfate, the Tai-Ace S 150.
Described acceleration sinking agent is the described acceleration sinking agent of this author disclosure of an invention CN101786647A patent.
Described tensio-active agent is one or both in octadecyl bromination ammonium, Witco 1298 Soft Acid, sodium cetanesulfonate, the sodium lauryl sulphate.
The method of use of this decolor flocculating agent is: with mass ratio is that 1 ‰～2 ‰ transparent weak yellow liquid joins in the scarlet solvability azo dye printing and dyeing wastewater; Behind the quick stirring of 300r/min 1～3min; Stir 10～15min with 80r/min again; Staticly settle, water outlet is the water white transparency dyeing waste water.
Instance 1
By accounting for decolor flocculating agent total mass per-cent; With the decolor flocculating agent that poly-ferric chloride 50%, Tai-Ace S 150 45%, cation polypropylene acid ammonium 3%, Witco 1298 Soft Acid 2% are prepared from, certain making up plant's solvability azo dye wastewater to be handled, azo dye wastewater colourity is 5000; Getting mass ratio during test and be 1.5 ‰ transparent weak yellow liquid joins in the solvability azo dye printing and dyeing wastewater; Stir 20min, the alumen ustum formation time is short in the whipping process, and floc particle is big; Handling back clear colourity is 1.7, and percent of decolourization is 99.97%.
Instance 2
By accounting for decolor flocculating agent total mass per-cent; With the decolor flocculating agent that aluminium iron polychloride 70%, ferric sulfate 22%, poly-epoxy succinic acid 2.4%, octadecyl bromination ammonium 5.6% are prepared from, certain textiles factory solvability azo dye wastewater to be handled, azo dye wastewater colourity is 1000; Getting mass ratio during test and be 1.1 ‰ transparent color yellowish liquid joins in the solvability azo dye printing and dyeing wastewater; Stir 25min, the alumen ustum formation time is short in the whipping process, and floc particle is big; Handling back clear colourity is 0.4, and percent of decolourization is 99.96%.
Instance 3
By accounting for decolor flocculating agent total mass per-cent; With the decolor flocculating agent that bodied ferric sulfate 55%, sal epsom 36%, sodium lauryl sulphate 4.4%, sodium cetanesulfonate 4.6% are prepared from, certain tannery's solvability azo dye wastewater to be handled, azo dye wastewater colourity is 3765; Getting mass ratio during test and be 1.2 ‰ transparent color yellowish liquid joins in the solvability azo dye printing and dyeing wastewater; Stir 30min, the alumen ustum formation time is short in the whipping process, and floc particle is big; Handling back clear colourity is 1.1, and percent of decolourization is 99.98%.
Instance 4
By accounting for decolor flocculating agent total mass per-cent; With the decolor flocculating agent that aluminium iron polychloride 72%, vitriolate of tartar 18%, octadecyl bromination ammonium 10% are prepared from, certain making up plant's solvability azo dye wastewater to be handled, azo dye wastewater colourity is 578; Getting mass ratio during test and be 1.8 ‰ transparent color yellowish liquid joins in the solvability azo dye printing and dyeing wastewater; Stir 30min, the alumen ustum formation time is short in the whipping process, and floc particle is big; Handling back clear colourity is 0.12, and percent of decolourization is 99.98%.
Instance 5
By accounting for decolor flocculating agent total mass per-cent,, certain textile mills' solvability azo dye wastewater is handled the decolor flocculating agent that bodied ferric sulfate 65%, vitriolate of tartar 28%, sodium cetanesulfonate 7% are prepared from; Azo dye wastewater colourity is 221; Get mass ratio during test and be 1.3 ‰ transparent color yellowish liquid and join in the solvability azo dye printing and dyeing wastewater, stir 30min, the alumen ustum formation time is short in the whipping process; Floc particle is big;, handling back clear colourity is 0.021, percent of decolourization is 99.99%.
Instance 6
Will be by accounting for decolor flocculating agent total mass per-cent; With the decolor flocculating agent that bodied ferric sulfate 80%, sodium sulfate 16%, sodium lauryl sulphate 4% are prepared from, certain tannery's solvability azo dye wastewater to be handled, azo dye wastewater colourity is 99; Getting mass ratio during test and be 1.3 ‰ transparent color yellowish liquid joins in the solvability azo dye printing and dyeing wastewater; Stir 30min, the alumen ustum formation time is short in the whipping process, and floc particle is big; Handling back clear colourity is 0.01, and percent of decolourization is 99.99%.
Claims (5)
1. a decolor flocculating agent and application method thereof of handling the solvability azo dye printing and dyeing wastewater is characterized in that the preparation process of decolor flocculating agent is:
(1) getting mass ratio is that 50%～80% inorganic polymer flocculant constantly stirs in beaker and heats 5～10min;
(2) be 9%～45% vitriol to wherein dropping into mass ratio, middling speed stirs 10～30min;
(3) in above-mentioned substance, adding mass ratio is 0.1 ‰～0.5 ‰ rapid subsidence agent, stirs, staticly settles, and treats the complete post precipitation of insoluble substance in the inorganic polymer flocculant, filters, and gets supernatant liquid;
(4) in supernatant, adding mass ratio is 5%～10% tensio-active agent, stirs 10～30min fast with 800r/min, dissolves fully to tensio-active agent, forms milk sap;
(5) with milk sap with 10 times of distilled water dilutings, obtain the clear weak yellow liquid.
2. a kind of decolor flocculating agent and application method thereof of handling the solvability azo dye printing and dyeing wastewater according to claim 1 is characterized in that: described inorganic polymer flocculant is any in poly-ferric chloride, aluminium iron polychloride, the bodied ferric sulfate.
3. a kind of decolor flocculating agent and application method thereof of handling the solvability azo dye printing and dyeing wastewater according to claim 1 is characterized in that: described vitriol is any in sodium sulfate, vitriolate of tartar, sal epsom, ferric sulfate, the Tai-Ace S 150.
4. a kind of decolor flocculating agent and application method thereof of handling the solvability azo dye printing and dyeing wastewater according to claim 1 is characterized in that: described acceleration sinking agent is the described acceleration sinking agent of this author disclosure of an invention CN101786647A patent.
5. a kind of decolor flocculating agent and application method thereof of handling the solvability azo dye printing and dyeing wastewater according to claim 1 is characterized in that: described tensio-active agent is one or both in octadecyl bromination ammonium, Witco 1298 Soft Acid, sodium cetanesulfonate, the sodium lauryl sulphate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103193159A CN102464389A (en) | 2011-10-20 | 2011-10-20 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103193159A CN102464389A (en) | 2011-10-20 | 2011-10-20 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
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| CN102464389A true CN102464389A (en) | 2012-05-23 |
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| CN2011103193159A Pending CN102464389A (en) | 2011-10-20 | 2011-10-20 | Decoloring flocculant for treating soluble azo dye printing and dyeing wastewater and application method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102976461A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Agent for treating printing and dyeing wastewater |
| CN103480116A (en) * | 2012-07-12 | 2014-01-01 | 唐赫 | Formaldehyde scavenger and preparation method thereof |
| CN105036285A (en) * | 2015-06-12 | 2015-11-11 | 兰州陇源石化有限责任公司 | Aniline sewage decolorization treatment agent, and preparation method and application method thereof |
| CN105347452A (en) * | 2016-01-04 | 2016-02-24 | 苏州巨联环保科研有限公司 | Method for decoloring printing and dyeing wastewater |
| CN105645541A (en) * | 2016-01-28 | 2016-06-08 | 叶君芝 | Decolorizing flocculant for dye wastewater |
| CN108439557A (en) * | 2018-03-13 | 2018-08-24 | 广州诺冠环保科技有限公司 | A kind of highly efficiency compositional decolorising agent and preparation method thereof applied to aluminium color waste water decoloring |
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2011
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| JPS62298492A (en) * | 1986-06-18 | 1987-12-25 | Canon Electronics Inc | Treatment of dyeing waste water without using oxidizing agent |
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| CN1055528A (en) * | 1991-04-01 | 1991-10-23 | 张啸川 | Composite and highly efficient agent for waste water treatment of drilling mud |
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Non-Patent Citations (1)
| Title |
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| 童丽: "阴离子表活性剂(SDS)溶液中PCBs的光降解研究", 《中国优秀博硕士学位论文全文数据库（硕士）工程科技Ⅱ辑》, no. 2, 15 June 2003 (2003-06-15) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480116A (en) * | 2012-07-12 | 2014-01-01 | 唐赫 | Formaldehyde scavenger and preparation method thereof |
| CN102976461A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Agent for treating printing and dyeing wastewater |
| CN105036285A (en) * | 2015-06-12 | 2015-11-11 | 兰州陇源石化有限责任公司 | Aniline sewage decolorization treatment agent, and preparation method and application method thereof |
| CN105347452A (en) * | 2016-01-04 | 2016-02-24 | 苏州巨联环保科研有限公司 | Method for decoloring printing and dyeing wastewater |
| CN105347452B (en) * | 2016-01-04 | 2018-07-31 | 苏州巨联环保科研有限公司 | Methods of Color Removal of Dyestuff Effluent |
| CN105645541A (en) * | 2016-01-28 | 2016-06-08 | 叶君芝 | Decolorizing flocculant for dye wastewater |
| CN108439557A (en) * | 2018-03-13 | 2018-08-24 | 广州诺冠环保科技有限公司 | A kind of highly efficiency compositional decolorising agent and preparation method thereof applied to aluminium color waste water decoloring |
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Application publication date: 20120523 |