CN109319905A - Decolorising agent for dyeing and printing sewage - Google Patents
Decolorising agent for dyeing and printing sewage Download PDFInfo
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- CN109319905A CN109319905A CN201811230652.9A CN201811230652A CN109319905A CN 109319905 A CN109319905 A CN 109319905A CN 201811230652 A CN201811230652 A CN 201811230652A CN 109319905 A CN109319905 A CN 109319905A
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- dyeing
- decolorising
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
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Abstract
A kind of decolorising agent for dyeing and printing sewage includes: 1-3 parts of A agent be made of dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate by weight；2-5 parts of B agent be made of dodecyl dimethyl ammonium chloride, benzyl chloride, water；5-7 parts of water.The invention proposes a kind of preparation method for dyeing and printing sewage processing, which has many advantages, such as that dosage is small, percent of decolourization is high, wide adaptation range.
Description
Technical field
The present invention relates to techniques of Dyeing Wastewater Treatment field more particularly to a kind of decolorising agents for dyeing and printing sewage.
Background technique
Sewage treatment generally uses: the combination of " physico-chemical precipitation (or air bearing)+anaerobism (or and oxygen)+aerobic+physico-chemical precipitation "
Technique not only effectively removes 40% or more COD and other such as suspended matters, ammonia nitrogen by flocculation, meanwhile, there is certain take off
Color effect.After bio-chemical effluent, many enterprises, all other indexs can it is up to standard, only coloration exist, it is generally light yellow or
Brown.Such as: coking wastewater, dyeing waste water.Paper waste etc..Strong unit can using active carbon filtering absorption or
The even UF membrane decoloration of ClO2, O3 oxidative decoloration.But these are all the big operating cost height of investment.
China Patent Publication No.: CN105439267A discloses a kind of composite decoloring agent for treatment of dyeing wastewater,
It is prepared in proportion by organic-flocculation decolorising agent and inorganic flocculating decoloring agent, organic-flocculation decolorising agent and inorganic flocculating decoloring agent
Mass ratio be organic-flocculation decolorising agent: inorganic flocculating decoloring agent=1:0.1~1.5；The wherein organic-flocculation decolorising agent
It is prepared in molar ratio by dicyandiamide, formaldehyde, ammonium chloride, urea, melamine, the inorganic flocculating decoloring agent is polymerization
One or more of compositions in aluminium chloride, poly-ferric chloride and bodied ferric sulfate.It can be seen that there are following for the composite decoloring agent
Problem:
First, formaldehyde has toxicity in the decolorising agent, is heated under melamine morning hot environment and decomposites the cyanogen of severe toxicity
Compound gas, aluminium polychloride are corrosive, and improper use easily makes operator's poisoning or injured.
Second, the decolorising agent raw material types are various, and cumbersome, preparation time is long, and manufacture efficiency is low.
Third, bleaching time is long when in use for the decolorising agent, and for percent of decolourization 95% or so, decolorizing efficiency is low.
Summary of the invention
For this purpose, the present invention provides a kind of decolorising agent for dyeing and printing sewage, to overcome in the prior art decolorizing efficiency it is low
The problem of.
On the one hand, the present invention provides a kind of decolorising agent of dyeing and printing sewage processing, includes: by weight
1-3 parts of A agent, 2-5 parts of B agent, 5-7 parts of water,
Wherein, A agent includes 5 parts of dicyandiamide, 3 parts of hydrochloric acid, 1 part of catalyst, 10 parts of aluminum sulfate by weight；
B agent includes 3 parts of dodecyl dimethyl ammonium chloride, 1.5 parts of benzyl chloride, 5.5 parts of water by weight.
Further, the decolorising agent includes: 1 part of A agent, 2 parts of B agent, 5 parts of water by weight.
Further, the decolorising agent includes: 2 parts of A agent, 4 parts of B agent, 6 parts of water by weight.
Further, the decolorising agent includes: 3 parts of A agent, 5 parts of B agent, 7 parts of water by weight.
On the other hand, the present invention provides a kind of production method of decolorising agent for dyeing and printing sewage, comprising: by the A agent,
B agent and water, which are proportionally added in stirred tank, at the uniform velocity to be stirred, after mixing evenly up to the decolorising agent for being used for dyeing and printing sewage.
Further, the production method of the A agent are as follows: by dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate according to mass ratio 5:
The ratio of 3:1:10 sequentially adds in reaction kettle, stirs and heats；After reaction, stop stirring, be cooled to room temperature up to A
Agent.
Further, the heating temperature of the stirred tank is 65-80 DEG C, soaking time 3-5h.
Further, the production method of the B agent are as follows: by dodecyl dimethyl ammonium chloride, benzyl chloride, water according to quality
Ratio than 3:1.5:5.5 sequentially adds in reaction kettle, stirs and heats；After reaction, stop stirring, be cooled to room temperature i.e.
Obtain B agent.
Further, the heating temperature of the stirred tank is 55-85 DEG C, soaking time 3-5h.
Compared with prior art, the beneficial effects of the present invention are the invention proposes one kind to be handled for dyeing and printing sewage
Preparation method, which has many advantages, such as that dosage is small, percent of decolourization is high, wide adaptation range.
Further, each component effect is as follows in the present invention:
Dicyandiamide: being the dimer of cyanamide and the cyano derivative of guanidine；White crystalline powder.Water-soluble, alcohol, second
Two pure and mild dimethylformamides are practically insoluble in ether and benzene, stablize when dry；It can be used for examining and determine cobalt, nickel, copper and palladium；Organic conjunction
At；Nitrocellulose stabilizer；Curing agent；Detergent；Vulcanization accelerator；Resins synthesis.
Hydrochloric acid: for colorless and transparent liquid, there are strong sharp aroma, corrosivity with higher；It can be used for derusting, wash
Steel prepares organic compound and inorganic compound etc..
Aluminum sulfate: white orthorhombic system crystalline powder, density 1.69g/mL (25 DEG C)；Rosin is used as in paper industry
The precipitating reagent of the sizing materials such as glue, wax emulsion makees flocculant in water process, is dissolved in after water the fine particles and natural micelle that can make in water
It is condensed into bulk floccule, to remove from water, therefore is used as the coagulant to supply water with waste water；Muddy water cleanser is also acted as,
Also serve as precipitating reagent, color fixing agent, filler etc..
Dodecyl dimethyl ammonium chloride: being a kind of cationic surfactant, belongs to non oxidizing bactericide, has wide
Spectrum, efficient sterilization algae removal ability can efficiently control bacterium algae breeding and foundry loam growth in water, and have good sludge stripping
Effect and certain dispersion, osmosis, at the same have it is certain deoil, deodorizing capability and corrosion inhibition；Small toxicity, no accumulation
Property toxicity, and it is soluble easily in water, it is not influenced by the water hardness, therefore be widely used in the industries such as petroleum, chemical industry, electric power, weaving
It in recirculating cooling water system, is bred to control loop cooling water system bacterium algae, has special efficacy to sulfate reducing bacteria is killed；May be used also
As the biocide mildewcide and softening agent of textile printing and dyeing industry, antistatic agent, emulsifier, conditioner etc..
Benzyl chloride: benzyl chloride is a kind of colourless or yellowish transparency liquid, belongs to carcinogen, has penetrating odor,
It is slightly soluble in water, is soluble in the organic solvents such as benzene, toluene, is the important chemical industry of one kind, medicine intermediate, is also important organic conjunction
At intermediate.
Specific embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is further retouched below with reference to embodiment
It states；It should be appreciated that specific embodiment described herein is used only for explaining the present invention, it is not intended to limit the present invention.
The embodiment of the present invention with dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate, dodecyl dimethyl ammonium chloride, benzyl chloride,
Water is raw material, is illustrated below according to the different proportion of each embodiment.
Embodiment 1
A kind of decolorising agent for dyeing and printing sewage, includes: 1 part of A agent by weight, and 2 parts of B agent, 5 parts of water, by the A agent, B
Agent and water, which are proportionally added in stirred tank, at the uniform velocity to be stirred, after mixing evenly up to the decolorising agent for being used for dyeing and printing sewage.
Wherein, the production method of the A agent are as follows: by dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate according to mass ratio 5:3:1:
10 ratio sequentially adds in reaction kettle, is stirred and heated to 65 DEG C；Preserving heat after reaction ends 3h stops stirring, is cooled to room
Temperature is up to A agent.
The production method of the B agent are as follows: by dodecyl dimethyl ammonium chloride, benzyl chloride, water according to mass ratio 3:1.5:
5.5 ratio sequentially adds in reaction kettle, is stirred and heated to 55 DEG C；Preserving heat after reaction ends 3h stops stirring, is cooled to room
Temperature is up to B agent.
9, the production method of the decolorising agent according to claim 8 for dyeing and printing sewage, which is characterized in that described to stir
The heating temperature for mixing kettle is 55-85 DEG C, soaking time 3-5h.
Embodiment 2
A kind of decolorising agent for dyeing and printing sewage, includes: 1 part of A agent by weight, and 2 parts of B agent, 5 parts of water, by the A agent, B
Agent and water, which are proportionally added in stirred tank, at the uniform velocity to be stirred, after mixing evenly up to the decolorising agent for being used for dyeing and printing sewage.
Wherein, the production method of the A agent are as follows: by dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate according to mass ratio 5:3:1:
10 ratio sequentially adds in reaction kettle, is stirred and heated to 72 DEG C；Preserving heat after reaction ends 4h stops stirring, is cooled to room
Temperature is up to A agent.
The production method of the B agent are as follows: by dodecyl dimethyl ammonium chloride, benzyl chloride, water according to mass ratio 3:1.5:
5.5 ratio sequentially adds in reaction kettle, is stirred and heated to 70 DEG C；Preserving heat after reaction ends 4h stops stirring, is cooled to room
Temperature is up to B agent.
Embodiment 3
A kind of decolorising agent for dyeing and printing sewage, includes: 1 part of A agent by weight, and 2 parts of B agent, 5 parts of water, by the A agent, B
Agent and water, which are proportionally added in stirred tank, at the uniform velocity to be stirred, after mixing evenly up to the decolorising agent for being used for dyeing and printing sewage.
Wherein, the production method of the A agent are as follows: by dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate according to mass ratio 5:3:1:
10 ratio sequentially adds in reaction kettle, is stirred and heated to 80 DEG C；Preserving heat after reaction ends 5h stops stirring, is cooled to room
Temperature is up to A agent.
The production method of the B agent are as follows: by dodecyl dimethyl ammonium chloride, benzyl chloride, water according to mass ratio 3:1.5:
5.5 ratio sequentially adds in reaction kettle, is stirred and heated to 85 DEG C；Preserving heat after reaction ends 5h stops stirring, is cooled to room
Temperature is up to B agent.
Decolorising agent in above-described embodiment and commercially available flocculant and commercially available decolorising agent are compared into test, take certain printing and dyeing mill
Dyeing waste water, be divided into five parts, every part of 1000ml, the decolorising agent be thrown to respectively in every part of dyeing waste water, dosage is
50mg is stirred to each dyeing waste water and stands 1h after dispensing, detect the coloration of each waste water, and calculates the coloration of each decolorising agent
Removal rate, the results are shown in Table 1:
Table 1
| Decolorising agent | Chroma removal rate (%) |
| Embodiment 1 | 97.2 |
| Embodiment 2 | 96.4 |
| Embodiment 3 | 97.1 |
| Commercially available flocculant | 82.4 |
| Commercially available decolorising agent | 90.9 |
By table 1, it can be concluded that, commercially available flocculant and decolorising agent are 80%- to the chroma removal rate of dyeing waste water
90%, and the decolorising agent chroma removal rate of the present invention for handling dyeing and printing sewage has reached 95% or more, and when described
When the ratio of A agent, B agent and water is 1:2:5 in decolorising agent, maximum is reached to the chroma removal rate of dyeing waste water, is 97.2%.
It is decolourized with commercially available flocculant and decolorising agent to the dyeing waste water of certain factory using the decolorising agent in above-described embodiment 3
Test, is sampled the dyeing waste water, and uses its initial chroma of Dilution, and waste water is divided into three parts after test,
The decolorising agent is thrown in every part of dyeing waste water by every part of 1000ml respectively, dosage 50mg, useless to each printing and dyeing after dispensing
Water is stirred and stands 1h, detects the coloration of each waste water, and calculates the chroma removal rate of each decolorising agent, and the results are shown in Table 2:
Table 2
| Decolorising agent | Chroma removal rate (%) |
| Embodiment 3 | 95.9 |
| Commercially available flocculant | 91.4 |
| Commercially available decolorising agent | 92.7 |
By table 2, it can be concluded that, the decolorising agent chroma removal rate of the present invention for dyeing and printing sewage is much higher than commercially available wadding
The chroma removal rate of solidifying agent and decolorising agent.
The above description is only a preferred embodiment of the present invention, is not intended to restrict the invention；For those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of decolorising agent for dyeing and printing sewage, which is characterized in that include: by weight
1-3 parts of A agent, 2-5 parts of B agent, 5-7 parts of water,
Wherein, A agent includes 5 parts of dicyandiamide, 3 parts of hydrochloric acid, 1 part of catalyst, 10 parts of aluminum sulfate by weight；
B agent includes 3 parts of dodecyl dimethyl ammonium chloride, 1.5 parts of benzyl chloride, 5.5 parts of water by weight.
2. the decolorising agent according to claim 1 for dyeing and printing sewage, which is characterized in that the decolorising agent wraps by weight
It includes: 1 part of A agent, 2 parts of B agent, 5 parts of water.
3. the decolorising agent according to claim 1 for dyeing and printing sewage, which is characterized in that the decolorising agent wraps by weight
It includes: 2 parts of A agent, 4 parts of B agent, 6 parts of water.
4. the decolorising agent according to claim 1 for dyeing and printing sewage, which is characterized in that the decolorising agent wraps by weight
It includes: 3 parts of A agent, 5 parts of B agent, 7 parts of water.
5. a kind of production method of the decolorising agent for dyeing and printing sewage, which is characterized in that by the A agent, B agent and water are proportionally
It is added in stirred tank and at the uniform velocity stirs, after mixing evenly up to the decolorising agent for being used for dyeing and printing sewage.
6. the production method of the decolorising agent according to claim 5 for dyeing and printing sewage, which is characterized in that the A agent
Production method are as follows: dicyandiamide, hydrochloric acid, catalyst, aluminum sulfate are sequentially added into reaction kettle according to the ratio of mass ratio 5:3:1:10
In, it stirs and heats；After reaction, stop stirring, be cooled to room temperature up to A agent.
7. the production method of the decolorising agent according to claim 6 for dyeing and printing sewage, which is characterized in that the stirred tank
Heating temperature be 65-80 DEG C, soaking time 3-5h.
8. the production method of the decolorising agent according to claim 5 for dyeing and printing sewage, which is characterized in that the B agent
Production method are as follows: sequentially add dodecyl dimethyl ammonium chloride, benzyl chloride, water according to the ratio of mass ratio 3:1.5:5.5
In reaction kettle, stirs and heat；After reaction, stop stirring, be cooled to room temperature up to B agent.
9. the production method of the decolorising agent according to claim 8 for dyeing and printing sewage, which is characterized in that the stirred tank
Heating temperature be 55-85 DEG C, soaking time 3-5h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230652.9A CN109319905A (en) | 2018-10-22 | 2018-10-22 | Decolorising agent for dyeing and printing sewage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811230652.9A CN109319905A (en) | 2018-10-22 | 2018-10-22 | Decolorising agent for dyeing and printing sewage |
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| Publication Number | Publication Date |
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| CN109319905A true CN109319905A (en) | 2019-02-12 |
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| CN201811230652.9A Pending CN109319905A (en) | 2018-10-22 | 2018-10-22 | Decolorising agent for dyeing and printing sewage |
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Citations (9)
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|---|---|---|---|---|
| CN1393410A (en) * | 2001-06-26 | 2003-01-29 | 刘明华 | Organic-inorganic composite flocculant and its preparing process |
| CN101254970A (en) * | 2007-02-28 | 2008-09-03 | 中国科学院大连化学物理研究所 | Decolorizing coagulant as well as preparation method and uses thereof |
| CN101306858A (en) * | 2008-06-13 | 2008-11-19 | 浙江工业大学 | High-efficiency decolorizing additive agent for dyeing waste water and method for preparing same |
| CN103814948A (en) * | 2012-11-16 | 2014-05-28 | 季爱英 | Industrial water treatment bactericide |
| CN104475036A (en) * | 2014-11-27 | 2015-04-01 | 新疆德蓝股份有限公司 | Preparation method of industrial sewage/wastewater decolorant |
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| CN105948214A (en) * | 2016-06-28 | 2016-09-21 | 海安县中丽化工材料有限公司 | Decolorizing flocculant for printing and dyeing wastewater and preparation method of decolorizing flocculant |
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2018
- 2018-10-22 CN CN201811230652.9A patent/CN109319905A/en active Pending
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|---|---|---|---|---|
| CN1393410A (en) * | 2001-06-26 | 2003-01-29 | 刘明华 | Organic-inorganic composite flocculant and its preparing process |
| CN101254970A (en) * | 2007-02-28 | 2008-09-03 | 中国科学院大连化学物理研究所 | Decolorizing coagulant as well as preparation method and uses thereof |
| CN101306858A (en) * | 2008-06-13 | 2008-11-19 | 浙江工业大学 | High-efficiency decolorizing additive agent for dyeing waste water and method for preparing same |
| CN103814948A (en) * | 2012-11-16 | 2014-05-28 | 季爱英 | Industrial water treatment bactericide |
| CN104475036A (en) * | 2014-11-27 | 2015-04-01 | 新疆德蓝股份有限公司 | Preparation method of industrial sewage/wastewater decolorant |
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| CN105948214A (en) * | 2016-06-28 | 2016-09-21 | 海安县中丽化工材料有限公司 | Decolorizing flocculant for printing and dyeing wastewater and preparation method of decolorizing flocculant |
| CN106517384A (en) * | 2016-12-14 | 2017-03-22 | 安徽扬子化工有限公司 | High-chroma wastewater decolorant |
| CN106833940A (en) * | 2017-02-10 | 2017-06-13 | 苏州市统业化工有限公司 | Anti- staining laundry detergents, anti-staining liquid detergent and anti-staining laundry cloth |
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Address after: 1202, Dachong building, No. 2009, Shahe West Road, Dachong community, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Applicant after: Shenzhen Delan ecological environment Co., Ltd. Address before: 830013 South Tower, No. 567 Dongrong Street, North District, Urumqi High-tech Industrial Development Zone, Xinjiang Uygur Autonomous Region Applicant before: Xinjiang Environmental Engineering Technology Co., Ltd. |
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