CN104291425B - The special flocculating decoloring agent of fur coat oxidising dyeing sewage and preparation method - Google Patents
The special flocculating decoloring agent of fur coat oxidising dyeing sewage and preparation method Download PDFInfo
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- CN104291425B CN104291425B CN201410629308.2A CN201410629308A CN104291425B CN 104291425 B CN104291425 B CN 104291425B CN 201410629308 A CN201410629308 A CN 201410629308A CN 104291425 B CN104291425 B CN 104291425B
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- decoloring agent
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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
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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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
- C02F1/56—Macromolecular compounds
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/22—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
- C02F2103/24—Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof from tanneries
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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
- C02F2305/00—Use of specific compounds during water treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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- Life Sciences & Earth Sciences (AREA)
- 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to the process technology field of animal fur, in particular to the fur coat special flocculating decoloring agent of oxidising dyeing sewage and preparation method.The special flocculating decoloring agent of fur coat oxidising dyeing sewage, is prepared from by the raw material of following weight proportion: flocculant 1-20 part；Inorganic oxidizer 10-40 part；Inorganic base 10-40 part；Adsorbent 10-50 part.Method: the described fur coat special flocculating decoloring agent of oxidising dyeing sewage is made up according to the mixing of described number is composite of above-mentioned raw materials.This flocculating decoloring agent is mainly used in the special efficient flocculating decoloring agent of fur coat oxidising dyeing sewage disposal, composition is simple, production and application is convenient, cost is low, flocculating decoloring effect is good, oxidation dye intermediates in sewage be can efficiently remove, colourity and the COD of sewage reduced, so that oxidation dye sewage obtains qualified discharge or recycling.
Description
Technical field
The present invention relates to the process technology field of animal fur, in particular to the fur coat special flocculating decoloring agent of oxidising dyeing sewage and preparation method.
Background technology
Oxidising dyeing in fur coat manufacture process is to use hydrogen peroxide to make oxidation dye monomer process of oxidative color-developing on wool fibre as oxidant.
Polluter in oxidising dyeing sewage mainly has: oxidation dye monomer, reacted macromole oxidation dye color precipitation, the hydrogen peroxide etc. remained.
The COD of sewage is between 3000mg/L～15000mg/L, and the colourity of sewage is heavier, and not easily thoroughly decolours.Polluter therein mainly has: oxidation dye monomer, macromole oxidation dye color lake, residual hydrogen peroxide etc..
The bigger dye molecule color lake of molecular weight can be passed through flocculation sediment and filter and remove, but oxidation dye monomer as: This type of has the little good water solubility of molecular weight, is completely soluble in the feature in waste water, it is impossible to remove by flocculating.
Therefore, being processed by conventional flocculation filtration method, oxidation dye sewage can temporarily become clear, but long-time stand after, the dioxygen oxidation in hydrogen peroxide that the colourless intermediate being dissolved in water is remained and air, there is following reaction:
Again generated the macromolecular substances that can develop the color by above-mentioned oxidation reaction, show as sewage and return color；And the time is more long, color is more heavy.Therefore all the time, oxidation dye dyeing waste processes problem and is always up an industry difficult problem；Part producer is by using the dilution of sewage oxidation dye sewage of the low colourity of low COD to reach the purpose of qualified discharge, but complicated operation with high costs, constrain the popularization of oxidation dye staining technique greatly
In view of this, the special proposition present invention.
Summary of the invention
It is an object of the invention to provide a kind of special efficient flocculating decoloring agent being mainly used in fur coat oxidising dyeing sewage disposal, composition is simple, production and application is convenient, cost is low, flocculating decoloring effect is good, oxidation dye intermediates in sewage be can efficiently remove, colourity and the COD of sewage reduced, so that oxidation dye sewage obtains qualified discharge or recycling.
The second object of the present invention is in that the preparation method providing the de-agent of above-mentioned flocculation.
In order to realize the above-mentioned purpose of the present invention, spy by the following technical solutions:
The special flocculating decoloring agent of fur coat oxidising dyeing sewage, is prepared from by the raw material of following weight proportion:
The fur coat special flocculating decoloring agent of oxidising dyeing sewage provided by the invention, the pH of sewage is improved by adding inorganic base substance, owing to oxidation dye single-body type reacts in the basic conditions, hydrogen peroxide is also decompose in the basic conditions, so adding alkali to improve pH for key；It is simultaneously introduced oxidant, exhaustive oxidation does not participate in the oxidation dye intermediates of reaction, is aoxidized by the small-molecule substance being easy to become solution in water and generates water-fast color lake, by the adsorption precipitation of this color lake under the effect of flocculant and adsorbent, then filter, thus reaching the purpose removed by intermediate.
The present invention is by reasonably combined, and it is good that system allots flocculating decoloring effect, can efficiently remove oxidation dye intermediates in sewage, reduces colourity and the COD of sewage, so that oxidation dye sewage obtains the flocculating decoloring agent of qualified discharge or recycling.
Further, the raw material of following weight proportion it is prepared from:
Further, the raw material of following weight proportion it is prepared from:
Further, described flocculant is any one or the multiple combination in PAMC, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.Most preferred, described organic flocculant is PAMC.
Further, described flocculant is polymerization aluminum chloride, and obtained flocculating decoloring agent can reduce the COD of sewage better..
Further, described inorganic base is any one or the multiple combination in sodium bicarbonate, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide.
Being preferably potassium carbonate, this inorganic base can regulate rapidly the pH value of solution, improves reaction efficiency.
Further, described inorganic oxidizer is any one or the multiple combination in Dexol, SODIUM PERCARBONATE, sodium peroxydisulfate, potassium peroxydisulfate, Ammonium persulfate..
Being preferably SODIUM PERCARBONATE, its oxidation susceptibility is better, it is possible to by the small-molecule substance complete oxidation in solution, the decoloration performance finally promoting flocculating decoloring agent is better.
Further, described adsorbent is any one or the multiple combination in activity white clay, activated carbon, tripoli, china clay, bentonite, diatom ooze.It is preferably activated carbon, it is easy to obtain, stable performance, easy to use.
The most preferred scheme of the present invention is: described flocculant is PAMC, described inorganic oxidizer is SODIUM PERCARBONATE, described inorganic base is potassium carbonate, and described adsorbent is activated carbon, and the flocculating decoloring agent after said components is composite can significantly reduce colourity and the COD of sewage simultaneously.
Present invention also offers the method preparing the above-mentioned fur coat special flocculating decoloring agent of oxidising dyeing sewage, the described fur coat special flocculating decoloring agent of oxidising dyeing sewage is made up according to the mixing of described number is composite of above-mentioned raw materials.
The using method of the fur coat special flocculating decoloring agent of oxidising dyeing sewage provided by the invention is: system allots the flocculating decoloring agent of following components:
Sewage being withdrawn into workshop flocculation basin from big collecting pit, adds flocculating decoloring agent provided by the invention (2～10g/L), stir, interval is stirred 8 hours；
Precipitation, sewage stream, in sedimentation tank, stands two hours, by overflow water outlet；
Sand filtration, sedimentation tank water outlet carries out into sand filter, sand filtration water outlet.
Compared with prior art, the invention have the benefit that
(1) composition is simple, and production and application is convenient, and cost is low；
(2) flocculating decoloring effect is good, can efficiently remove oxidation dye intermediates in sewage, reduces colourity and the COD of sewage, so that oxidation dye sewage obtains qualified discharge or recycling.
Detailed description of the invention
Below in conjunction with embodiment, embodiment of the present invention are described in detail, it will be appreciated by those skilled in the art that the following example is merely to illustrate the present invention, and are not construed as restriction the scope of the present invention.Unreceipted actual conditions person in embodiment, conventionally the condition of condition or manufacturer's suggestion carries out.Agents useful for same or the unreceipted production firm person of instrument, be and can pass through the commercially available conventional products bought and obtain.
The special flocculating decoloring agent of fur coat oxidising dyeing sewage, is prepared from by the raw material of following weight proportion:
The fur coat special flocculating decoloring agent of oxidising dyeing sewage provided by the invention, the pH of sewage is improved by adding alkaline matter, owing to oxidation dye single-body type reacts in the basic conditions, hydrogen peroxide is also decompose in the basic conditions, so it is most important to add alkali raising pH；It is simultaneously introduced oxidant, exhaustive oxidation does not participate in the oxidation dye intermediates of reaction, is aoxidized by the small-molecule substance being easy to become solution in water and generates water-fast color lake, by the adsorption precipitation of this color lake under the effect of flocculant and adsorbent, then filter, thus reaching the purpose removed by intermediate.
The present invention by reasonably combined, to allot flocculating decoloring effect good for system, can efficiently remove oxidation dye intermediates in sewage, reduces colourity and the COD of sewage, so that oxidation dye sewage obtains the flocculating decoloring agent of qualified discharge or recycling.
Further, the raw material of following weight proportion it is prepared from:
Further, the raw material of following weight proportion it is prepared from:
Further, described flocculant is any one or the multiple combination in PAMC, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.
Preferably, described flocculant is PAMC.
Further, described inorganic base is any one or the multiple combination in sodium bicarbonate, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide.
Being preferably potassium carbonate, this inorganic base can regulate rapidly the pH value of solution, improves reaction efficiency.
Further, described inorganic oxidizer is any one or the multiple combination in Dexol, SODIUM PERCARBONATE, sodium peroxydisulfate, potassium peroxydisulfate, Ammonium persulfate..
Being preferably SODIUM PERCARBONATE, its oxidation susceptibility is better, it is possible to by the small-molecule substance complete oxidation in solution, the decoloration performance finally promoting flocculating decoloring agent is better.
Further, described adsorbent is any one or the multiple combination in activity white clay, activated carbon, tripoli, china clay, bentonite, diatom ooze.It is preferably activated carbon, it is easy to obtain, stable performance, easy to use.
The using method of the fur coat special flocculating decoloring agent of oxidising dyeing sewage provided by the invention is: system allots the flocculating decoloring agent of following components:
Sewage being withdrawn into workshop flocculation basin from big collecting pit, adds flocculating decoloring agent (2～10g/L), stir, interval is stirred 8 hours；
Precipitation, sewage stream, in sedimentation tank, stands two hours, by overflow water outlet；
Sand filtration, sedimentation tank water outlet carries out into sand filter, sand filtration water outlet.
Embodiment 1:
PAMC (same under Wuhan Yue Xingyi Chemical Industry Science Co., Ltd PAMC FO4140SH) 1 part, SODIUM PERCARBONATE (same under chemically pure reagent) 10 parts, potassium carbonate (same under chemically pure reagent) 10 parts, activated carbon (same under chemically pure reagent) 10 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 2:
PAMC 5 parts, SODIUM PERCARBONATE 15 part, part potassium carbonate 15, activated carbon 20 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 3:
PAMC 10 parts, SODIUM PERCARBONATE 18 parts, potassium carbonate 20 parts, activated carbon 25 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 4:
PAMC 20 parts, SODIUM PERCARBONATE 40 part, part potassium carbonate 40, activated carbon 50 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 5:
PAMC 15 parts, SODIUM PERCARBONATE 30 part, part potassium carbonate 30, activated carbon 40 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 6:
PAMC 12 parts, SODIUM PERCARBONATE 25 part, part potassium carbonate 25, activated carbon 35 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 7:
PAMC 2.5 parts, SODIUM PERCARBONATE 22.5 part, part potassium carbonate 30, diatom ooze 45 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 8:
Sodium polyacrylate 4 parts, potassium peroxydisulfate 25 parts, sodium bicarbonate 30 parts, bentonite 45 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 9:
Calcium polyacrylate (CPA) 8.5 parts, sodium peroxydisulfate 35 parts, sodium carbonate 35 parts, china clay 45 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 10:
Polymerization aluminum chloride 3 parts, Dexol 38 parts, sodium hydroxide 15 parts, tripoli 5 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Embodiment 11:
Sodium polyacrylate 18 parts, Ammonium persulfate. 10 parts, potassium hydroxide 10 parts, activity white clay 10 parts, proportioning is sequentially added in mixing container by weight, mix homogeneously.
Experimental example 1
Former water forms: oxidation dye (Fan Bo company oxidation dye BC) 2g/L, hydrogen peroxide (30% content) 4ml/L, levelling agent 0.5ml/L, stands 5h.
Record former water COD:5840mg/L, colourity 80000 times.
Respectively take the former water of 100mL and add 1.0g above-described embodiment 1-11 sample, after interval is stirred 8 hours, filter, survey colourity and the COD such as following table of each sample:
Table 1
By above-mentioned test result it can be seen that the flocculating decoloring effect of the flocculating decoloring agent obtained by preferred embodiment 2,3,5,6 scheme is better.Above-mentioned test result all can reach secondary discharge standard.
Although illustrate and describing the present invention with specific embodiment, however it will be appreciated that may be made that when without departing substantially from the spirit and scope of the present invention many other change and amendment.It is, therefore, intended that include all such changes and modifications belonging in the scope of the invention in the following claims.
Claims (6)
1. the special flocculating decoloring agent of fur coat oxidising dyeing sewage, it is characterised in that be prepared from by the raw material of following weight proportion:
Wherein, flocculant is any one or the multiple combination in PAMC, sodium polyacrylate, calcium polyacrylate (CPA)；
Described inorganic base is any one or multiple combination in sodium bicarbonate, sodium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide；
Described inorganic oxidizer is any one or multiple combination in Dexol, SODIUM PERCARBONATE, sodium peroxydisulfate, potassium peroxydisulfate, Ammonium persulfate.；
Described adsorbent is any one or multiple combination in activity white clay, activated carbon, tripoli, china clay, bentonite, diatom ooze.
2. the fur coat special flocculating decoloring agent of oxidising dyeing sewage according to claim 1, it is characterised in that be prepared from by the raw material of following weight proportion:
3. the fur coat special flocculating decoloring agent of oxidising dyeing sewage according to claim 1, it is characterised in that be prepared from by the raw material of following weight proportion:
4. the fur coat special flocculating decoloring agent of oxidising dyeing sewage according to any one of claim 1-3, it is characterized in that, described flocculant is any one or multiple combination in PAMC, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.
5. the fur coat special flocculating decoloring agent of oxidising dyeing sewage according to claim 4, it is characterised in that described flocculant is PAMC or polymerization aluminum chloride.
6. the method for preparation fur coat oxidising dyeing sewage special flocculating decoloring agent described in any one of claim 1-5, it is characterised in that the described fur coat special flocculating decoloring agent of oxidising dyeing sewage is made up according to the mixing of its number is composite of above-mentioned raw materials.
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| CN105731616A (en) * | 2016-01-22 | 2016-07-06 | 南通海陵环境检测有限公司 | Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof |
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| CN115321617A (en) * | 2021-05-11 | 2022-11-11 | 贵州中车绿色环保有限公司 | COD (chemical oxygen demand) degrading agent as well as preparation method and application thereof |
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