CN104291425A - Special flocculation decolorizing agent for fur oxidation dyeing sewage and preparing method thereof - Google Patents

Special flocculation decolorizing agent for fur oxidation dyeing sewage and preparing method thereof Download PDF

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Publication number
CN104291425A
CN104291425A CN201410629308.2A CN201410629308A CN104291425A CN 104291425 A CN104291425 A CN 104291425A CN 201410629308 A CN201410629308 A CN 201410629308A CN 104291425 A CN104291425 A CN 104291425A
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China
Prior art keywords
sewage
dyeing sewage
special
decoloring agent
parts
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CN201410629308.2A
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Chinese (zh)
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CN104291425B (en
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康超国
郑超斌
郑红超
郝安生
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北京泛博化学股份有限公司
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/22Nature of the water, waste water, sewage or sludge to be treated from the processing of animals, e.g. poultry, fish, or parts thereof
    • C02F2103/24Nature 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
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/04Surfactants, used as part of a formulation or alone

Abstract

The invention relates to the field of animal fur treatment technologies, in particular to a special flocculation decolorizing agent for fur oxidation dyeing sewage and a preparing method thereof. The special flocculation decolorizing agent for fur oxidation dyeing sewage is prepared from the following raw materials in parts by weight: 10-20 parts of a flocculant, 10-40 parts of an inorganic oxidant, 10-40 parts of an inorganic base and 10-50 parts of an absorbent. The method is carried out in the way that the special flocculation decolorizing agent for fur oxidation dyeing sewage is prepared through the mixing of the raw materials in the parts. The flocculation decolorizing agent is mainly used as a special efficient flocculation decolorizing agent for the treatment of fur oxidation dyeing sewage, is simple in constitution, convenient to produce and use and low in cost, has a great flocculation decolorizing effect, can effectively remove oxidation dye intermediates from the sewage, and can reduce the chromacity and COD (Chemical Oxygen Demand) of the sewage, so that the qualified emission or recycling utilization of the oxidation dye sewage is realized.

Description

The special flocculating decoloring agent of fur coat oxidising dyeing sewage and preparation method

Technical field

The present invention relates to the treatment process field of animal fur, in particular to the special flocculating decoloring agent of fur coat oxidising dyeing sewage and preparation method.

Background technology

Oxidising dyeing in fur coat manufacturing processed is the process using hydrogen peroxide to make oxidation dye monomer oxidative color-developing on hair fibre as oxygenant.

Pollution substance in oxidising dyeing sewage mainly contains: oxidation dye monomer, reacted macromole oxidation dye look precipitation, residual hydrogen peroxide etc.

The COD of sewage is between 3000mg/L ~ 15000mg/L, and the colourity of sewage is heavier, and not easily thoroughly decolours.Pollution substance wherein mainly contains: oxidation dye monomer, macromole oxidation dye color lake, residual hydrogen peroxide etc.

The larger dye molecule color lake of molecular weight can be filtered by flocculation sediment and be removed, but oxidation dye monomer as: this type of has the little good water solubility of molecular weight, can be dissolved completely in the feature in waste water, cannot be removed by flocculation.

Therefore, by the flocculation filtration method process of routine, oxidation dye sewage can temporarily become clear, but long-time leave standstill after, be dissolved in colourless intermediate in water by the dioxygen oxidation in the hydrogen peroxide that remains and air, occur to react as follows:

Again generated the macromolecular substance that can develop the color by above-mentioned oxidizing reaction, show as sewage and return look; And the time is longer, color is heavier.Therefore all the time, oxidation dye dyeing waste process problem is an industry difficult problem always; The object of part producer by using the dilution of sewage oxidation dye sewage of the low colourity of low COD to reach qualified discharge, but complicated operation with high costs, constrain the popularization of oxidation dye staining technique greatly

In view of this, special proposition the present invention.

Summary of the invention

The object of the present invention is to provide a kind of special efficient flocculating decoloring agent being mainly used in the sewage disposal of fur coat oxidising dyeing, composition is simple, production and application is convenient, cost is low, flocculating decoloring effect is good, can efficiently remove oxidation dye intermediates in sewage, reduce colourity and the COD of sewage, thus make oxidation dye sewage obtain qualified discharge or recycling.

The second object of the present invention is to provide above-mentioned flocculation to take off the preparation method of agent.

In order to realize 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 special flocculating decoloring agent of fur coat oxidising dyeing sewage provided by the invention, the pH of sewage is improved by adding inorganic base substance, because oxidation dye monomer-type reacts in the basic conditions, hydrogen peroxide is also decompose in the basic conditions, so add alkali to improve pH for crucial; Add oxygenant simultaneously, exhaustive oxidation does not participate in the oxidation dye intermediates of reaction, and the small-molecule substance oxidation that will be easy to become solution in water generates water-fast color lake, by the adsorption precipitation of this color lake under the effect of flocculation agent and sorbent material, then filter, thus reach the object 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, thus makes oxidation dye sewage obtain the flocculating decoloring agent of qualified discharge or recycling.

Further, be prepared from by the raw material of following weight proportion:

Further, be prepared from by the raw material of following weight proportion:

Further, described flocculation agent is any one or the multiple combination in cationic polyacrylamide, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.Most preferred, described organic floculant is cationic polyacrylamide.

Further, described flocculation agent is polymerization aluminum chloride, and the flocculating decoloring agent obtained can reduce the COD of sewage better.。

Further, described mineral alkali is any one or the multiple combination in sodium bicarbonate, sodium carbonate, salt of wormwood, sodium hydroxide, potassium hydroxide.

Be preferably salt of wormwood, this mineral alkali can the pH value of regulator solution rapidly, raising reaction efficiency.

Further, described inorganic oxidizer is any one or the multiple combination in Sodium peroxoborate, SPC-D, Sodium Persulfate, Potassium Persulphate, ammonium persulphate.

Be preferably SPC-D, its oxidation susceptibility is better, can, by the small-molecule substance complete oxidation in solution, finally impel the decoloration performance of flocculating decoloring agent better.

Further, described sorbent material is any one or the multiple combination in active white clay, gac, tripoli, china clay, wilkinite, diatom ooze.Be preferably gac, easily obtain, stable performance, easy to use.

The most preferred scheme of the present invention is: described flocculation agent is cationic polyacrylamide, described inorganic oxidizer is SPC-D, described mineral alkali is salt of wormwood, and described sorbent material is gac, and the flocculating decoloring agent after said components is composite significantly can reduce colourity and the COD of sewage simultaneously.

Present invention also offers the method for the special flocculating decoloring agent of the above-mentioned fur coat oxidising dyeing sewage of preparation, the special flocculating decoloring agent of described fur coat oxidising dyeing sewage mixes composite making by above-mentioned raw materials according to described number.

The using method of the special flocculating decoloring agent of fur coat oxidising dyeing sewage provided by the invention is: system allots the flocculating decoloring agent of following component:

Sewage is withdrawn into workshop flocculation basin from large collecting tank, adds flocculating decoloring agent provided by the invention (2 ~ 10g/L), stir, interval is stirred 8 hours;

Precipitation, sewage flows in settling tank, leaves standstill two hours, by overflow water outlet;

Sand filtration, settling tank water outlet is carried out into sand filter, sand filtration water outlet.

Compared with prior art, beneficial effect of the present invention is:

(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, thus makes oxidation dye sewage obtain qualified discharge or recycling.

Embodiment

Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturers suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.

The special flocculating decoloring agent of fur coat oxidising dyeing sewage, is prepared from by the raw material of following weight proportion:

The special flocculating decoloring agent of fur coat oxidising dyeing sewage provided by the invention, the pH of sewage is improved by adding alkaline matter, because oxidation dye monomer-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; Add oxygenant simultaneously, exhaustive oxidation does not participate in the oxidation dye intermediates of reaction, and the small-molecule substance oxidation that will be easy to become solution in water generates water-fast color lake, by the adsorption precipitation of this color lake under the effect of flocculation agent and sorbent material, then filter, thus reach the object 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, reduce colourity and the COD of sewage, thus make oxidation dye sewage obtain the flocculating decoloring agent of qualified discharge or recycling.

Further, be prepared from by the raw material of following weight proportion:

Further, be prepared from by the raw material of following weight proportion:

Further, described flocculation agent is any one or the multiple combination in cationic polyacrylamide, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.

Preferably, described flocculation agent is cationic polyacrylamide.

Further, described mineral alkali is any one or the multiple combination in sodium bicarbonate, sodium carbonate, salt of wormwood, sodium hydroxide, potassium hydroxide.

Be preferably salt of wormwood, this mineral alkali can the pH value of regulator solution rapidly, raising reaction efficiency.

Further, described inorganic oxidizer is any one or the multiple combination in Sodium peroxoborate, SPC-D, Sodium Persulfate, Potassium Persulphate, ammonium persulphate.

Be preferably SPC-D, its oxidation susceptibility is better, can, by the small-molecule substance complete oxidation in solution, finally impel the decoloration performance of flocculating decoloring agent better.

Further, described sorbent material is any one or the multiple combination in active white clay, gac, tripoli, china clay, wilkinite, diatom ooze.Be preferably gac, easily obtain, stable performance, easy to use.

The using method of the special flocculating decoloring agent of fur coat oxidising dyeing sewage provided by the invention is: system allots the flocculating decoloring agent of following component:

Sewage is withdrawn into workshop flocculation basin from large collecting tank, adds flocculating decoloring agent (2 ~ 10g/L), stir, interval is stirred 8 hours;

Precipitation, sewage flows in settling tank, leaves standstill two hours, by overflow water outlet;

Sand filtration, settling tank water outlet is carried out into sand filter, sand filtration water outlet.

Embodiment 1:

Cationic polyacrylamide (same under Wuhan Yue Xingyi Chemical Industry Science Co., Ltd cationic polyacrylamide FO4140SH) 1 part, SPC-D (same under chemically pure reagent) 10 parts, 10 parts, salt of wormwood (same under chemically pure reagent), gac (same under chemically pure reagent) 10 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 2:

Cationic polyacrylamide 5 parts, SPC-D 15 part, part salt of wormwood 15, gac 20 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 3:

Cationic polyacrylamide 10 parts, SPC-D 18 parts, 20 parts, salt of wormwood, gac 25 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 4:

Cationic polyacrylamide 20 parts, SPC-D 40 part, part salt of wormwood 40, gac 50 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 5:

Cationic polyacrylamide 15 parts, SPC-D 30 part, part salt of wormwood 30, gac 40 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 6:

Cationic polyacrylamide 12 parts, SPC-D 25 part, part salt of wormwood 25, gac 35 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 7:

Cationic polyacrylamide 2.5 parts, SPC-D 22.5 part, part salt of wormwood 30, diatom ooze 45 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 8:

Sodium polyacrylate 4 parts, Potassium Persulphate 25 parts, sodium bicarbonate 30 parts, wilkinite 45 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 9:

Calcium polyacrylate (CPA) 8.5 parts, Sodium Persulfate 35 parts, 35 parts, sodium carbonate, china clay 45 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 10:

Polymerization aluminum chloride 3 parts, Sodium peroxoborate 38 parts, 15 parts, sodium hydroxide, tripoli 5 parts, proportioning adds in mixing vessel successively by weight, mixes.

Embodiment 11:

Sodium polyacrylate 18 parts, ammonium persulphate 10 parts, 10 parts, potassium hydroxide, active white clay 10 parts, proportioning adds in mixing vessel successively by weight, mixes.

Experimental example 1

Former water composition: oxidation dye (Fan Bo company oxidation dye BC) 2g/L, hydrogen peroxide (30% content) 4ml/L, levelling agent 0.5ml/L, leave standstill 5h.

Record former water COD:5840mg/L, colourity 80000 times.

Respectively get the former water of 100mL and add 1.0g above-described embodiment 1-11 sample, interval is stirred after 8 hours, filters, and the colourity of survey each sample and COD are as following table:

Table 1

As can be seen from above-mentioned test result, the flocculating decoloring effect of the flocculating decoloring agent obtained by preferably embodiment 2,3,5,6 scheme is better.Above-mentioned test result all can reach secondary discharge standard.

Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.

Claims (10)

1. the special flocculating decoloring agent of fur coat oxidising dyeing sewage, is characterized in that, is prepared from by the raw material of following weight proportion:
2. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to claim 1, is characterized in that, be prepared from by the raw material of following weight proportion:
3. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to claim 1, is characterized in that, be prepared from by the raw material of following weight proportion:
4. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to any one of claim 1-3, is characterized in that,
Described organic floculant is any one or multiple combination in cationic polyacrylamide, sodium polyacrylate, calcium polyacrylate (CPA), polymerization aluminum chloride.
5. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to claim 4, is characterized in that,
Described flocculation agent is any one or multiple combination in cationic polyacrylamide, sodium polyacrylate, calcium polyacrylate (CPA).
6. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to claim 4, is characterized in that,
Described flocculation agent is cationic polyacrylamide or polymerization aluminum chloride.
7. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to any one of claim 1-3, is characterized in that, described mineral alkali is any one or multiple combination in sodium bicarbonate, sodium carbonate, salt of wormwood, sodium hydroxide, potassium hydroxide.
8. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to any one of claim 1-3, it is characterized in that, described inorganic oxidizer is any one or multiple combination in Sodium peroxoborate, SPC-D, Sodium Persulfate, Potassium Persulphate, ammonium persulphate.
9. the special flocculating decoloring agent of fur coat oxidising dyeing sewage according to any one of claim 1-3, is characterized in that, described sorbent material is any one or multiple combination in active white clay, gac, tripoli, china clay, wilkinite, diatom ooze.
10. prepare the method for the special flocculating decoloring agent of fur coat oxidising dyeing sewage described in any one of claim 1-9, it is characterized in that, the special flocculating decoloring agent of described fur coat oxidising dyeing sewage mixes composite making by above-mentioned raw materials according to described number.
CN201410629308.2A 2014-11-10 2014-11-10 The special flocculating decoloring agent of fur coat oxidising dyeing sewage and preparation method CN104291425B (en)

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Cited By (6)

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CN105417676A (en) * 2016-01-14 2016-03-23 英泰格润环保科技(天津)有限公司 Water body restoring composition and water body restoring method
CN105502750A (en) * 2016-02-16 2016-04-20 北京泛博清洁技术研究院有限公司 Composition for treating marten oxidation dyeing wastewater and treatment method
CN105668744A (en) * 2016-04-06 2016-06-15 太仓市锦达印染有限公司 Textile dyeing wastewater flocculant
CN105692723A (en) * 2016-01-22 2016-06-22 南通海陵环境检测有限公司 Dyeing waste water treating agent and preparing method thereof
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
CN109133286A (en) * 2018-09-14 2019-01-04 清华大学 A kind of graphene oxide composite flocculation agent and preparation method thereof for sewage treatment

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105417676A (en) * 2016-01-14 2016-03-23 英泰格润环保科技(天津)有限公司 Water body restoring composition and water body restoring method
CN105417676B (en) * 2016-01-14 2019-03-29 英泰格润环保科技(天津)有限公司 A kind of water body remediation composition and water remediation method
CN105692723A (en) * 2016-01-22 2016-06-22 南通海陵环境检测有限公司 Dyeing waste water treating agent and preparing method thereof
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
CN105502750A (en) * 2016-02-16 2016-04-20 北京泛博清洁技术研究院有限公司 Composition for treating marten oxidation dyeing wastewater and treatment method
CN105668744A (en) * 2016-04-06 2016-06-15 太仓市锦达印染有限公司 Textile dyeing wastewater flocculant
CN109133286A (en) * 2018-09-14 2019-01-04 清华大学 A kind of graphene oxide composite flocculation agent and preparation method thereof for sewage treatment

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