CN105731616A - Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof - Google Patents

Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof Download PDF

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Publication number
CN105731616A
CN105731616A CN201610046793.XA CN201610046793A CN105731616A CN 105731616 A CN105731616 A CN 105731616A CN 201610046793 A CN201610046793 A CN 201610046793A CN 105731616 A CN105731616 A CN 105731616A
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CN
China
Prior art keywords
printing
dyeing wastewater
parts
dyeing
lignin
Prior art date
Application number
CN201610046793.XA
Other languages
Chinese (zh)
Inventor
丁俊铭
Original Assignee
南通海陵环境检测有限公司
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Publication date
Application filed by 南通海陵环境检测有限公司 filed Critical 南通海陵环境检测有限公司
Priority to CN201610046793.XA priority Critical patent/CN105731616A/en
Publication of CN105731616A publication Critical patent/CN105731616A/en

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Classifications

    • 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
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/5263Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
    • C02F1/52Treatment 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
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30Nature of the water, waste water, sewage or sludge to be treated from the textile industry

Abstract

The invention provides a printing and dyeing wastewater decoloration flocculating agent and a preparation method thereof. The printing and dyeing wastewater decoloration flocculating agent comprises the following components in parts by weight: 10-30 parts of polyacrylamide, 2-4 parts of kieselguhr, 20-40 parts of lignin and 3-15 parts of sodium perborate. The preparation method comprises the following steps: adding the kieselguhr and lignin into a powder stirrer, and stirring uniformly; slowly adding polyacrylamide; finally, adding sodium perborate; and stirring continuously to obtain the printing and dyeing wastewater decoloration flocculating agent. In the invention, the prepared printing and dyeing wastewater treatment agent is solid-state powder which is easy to store and use; and after the printing and dyeing wastewater treatment agent is added into a water body, the COD of the printing and dyeing wastewater can be reduced in short time while the chroma of the dyeing wastewater is lowered.

Description

A kind of dyeing sewage decoloration flocculant and preparation method thereof

Technical field

The present invention relates to the dirty water decontamination handles field, particularly to a kind of dyeing sewage decoloration flocculant and Its preparation method.

Background technology

Dyeing waste water is that processing is cotton, fiber crops, chemical fibre and blending product thereof are that main printing and dyeing mill discharges Waste water.The dyeing waste water water yield is relatively big, 1 ton of textile water consumption 100-200 ton of every dyeing and printing process, wherein 80-90% becomes waste water.Textile printing and dyeing wastewater has that the water yield is big, organic pollution content high, alkalescence is big, The features such as change of water quality is big, belong to one of intractable industrial wastewater, in waste water containing dyestuff, slurry, Auxiliary agent, oil preparation, soda acid, fiber impurity, sand class material, inorganic salt etc..

Main method for treatment of dyeing wastewater has physico-chemical process, biochemical process, chemical method and several work The processing method that skill combines, and the pretreatment in waste water process is primarily to improve waste water quality, goes Oil removal and the impurity that can directly settle, regulation waste water quality and the water yield, reduction wastewater temperature etc., Improving the whole structure that waste water processes, it is ensured that the stability of whole processing system, therefore pretreatment is in print Dye waste water has extremely important status in processing.

Present stage processes the method for dyeing waste water, and the flocculant of use is usually with simple organic wadding Solidifying agent or inorganic flocculating agent are main, and the response time is slow, and during flocculation, dyeing and printing sewage Colourity can not remove simultaneously.

Summary of the invention

In order to solve problem above, the present invention provides a kind for the treatment of of dyeing/printing wastewaters, according to weight portion, Comprise following components:

Polyacrylamide 10-30 part;

Kieselguhr 2-4 part;

Lignin 20-40 part;

Dexol 3-15 part.

Described polyacrylamide is PAMA, and molecular weight is 800-1200 ten thousand, polypropylene Organic species in sewage can be carried out in early stage by amide as the main body of the flocculant of the application Absorption.

Described diatomaceous dioxide-containing silica is 60-80%, and diatomaceous effect is to be wadded a quilt with cotton by organic The particulate contamination that solidifying agent can not be adsorbed and flocculate precipitates.Kieselguhr has stronger energy of adsorption Power, can adsorb the impurity of dyeing and printing sewage, facilitates oxidizing component to make on the surface of absorption With, can be with depth degradation organic pollution.

Described lignin is aminated lignin, and molecular weight is 10000-20000, lignin molecule structure In there is aromatic radical, phenolic hydroxyl group, alcoholic extract hydroxyl group, carbonyl, methoxyl group, carboxyl, conjugated double bond isoreactivity Group so that it is some metal ion, dyestuff etc. are had preferable effect.

Described Dexol is powder, and particle diameter is 5-25 μm, and the effect of Dexol is to flocculate After coloring matter decolour, reduce dyeing and printing sewage colourity.

The present invention also provides for the preparation method of a kind of dyeing and printing sewage inorganic agent, comprises the following steps: at powder End blender adds kieselguhr and lignin, stirs, be then slowly added polyacrylamide, Finally add Dexol, continue stirring, to obtain final product.

There is advantages that

Dyeing and printing sewage inorganic agent prepared by the present invention is solid state powder, easily stores and uses, and adds water At short notice the COD of dyeing and printing sewage can be reduced after body, and reduce the color of dyeing waste water simultaneously Degree.

Detailed description of the invention

Embodiments of the invention addressed below.The element described in one embodiment of the invention Can combine with the element shown in one or more other embodiment and feature with feature.Should Work as attention, for purposes of clarity, explanation eliminates unrelated to the invention, the common skill in this area Parts known to art personnel and the expression of process and description.

Embodiment 1

A kind of dyeing sewage decoloration flocculant of the present embodiment offer and preparation method thereof:

Polyacrylamide 10 parts;

2 parts of kieselguhr;

Lignin 20 parts;

Dexol 3 parts.

In powder mixer, add kieselguhr and lignin, stir, be then slowly added poly-third Acrylamide, finally adds Dexol, continues stirring, to obtain final product.

Embodiment 2

A kind of dyeing sewage decoloration flocculant of the present embodiment offer and preparation method thereof:

Polyacrylamide 30 parts;

4 parts of kieselguhr;

Lignin 40 parts;

Dexol 15 parts.

According to the step described in embodiment 1, said components is mixed, i.e. obtain sewage-treating agent.

Embodiment 3

A kind of dyeing sewage decoloration flocculant of the present embodiment offer and preparation method thereof:

Polyacrylamide 20 parts;

3 parts of kieselguhr;

Lignin 30 parts;

Dexol 9 parts.

According to the step described in embodiment 1, said components is mixed, i.e. obtain sewage-treating agent.

Implementation result:

Processing sewage: take the sewage that printing and dyeing mill finally discharges, detecting the COD that expires is 2200, colourity 50 DEG C, the result after flocculation is as shown in the table:

Embodiment 1 Embodiment 2 Embodiment 3 COD 105 84 94 Colourity 35 24 43

From the test result of above-described embodiment it can be seen that add after three kinds of flocculant, dyeing and printing sewage COD has had and has significantly declined, and all drops to discharge secondary standard, and colourity there has also been bigger Decline, it may be said that bright organic flocculant coordinates mineral-type flocculant and peroxide to carry out decolouring wadding Coagulate and can reach extraordinary application effect, have the most progressive.

Last it is noted that although the present invention and advantage thereof have been described in detail above, but should When understanding in the situation without departing from the spirit and scope of the present invention being defined by the claims appended hereto Under can carry out various change, substitute and convert.And, the scope of the present invention is not limited only to description Described process, equipment, means, the specific embodiment of method and steps.Common in this area Technical staff will readily appreciate that from the disclosure, according to the present invention can use execution with Function that this described corresponding embodiment is essentially identical or obtain the result essentially identical with it, show Have and process, equipment, means, method or step the most to be developed.Therefore, appended power Profit requires to be directed in the range of them including such process, equipment, means, method or step.

Claims (6)

1. a dyeing sewage decoloration flocculant, it is characterised in that according to weight portion, comprises following components:
A kind of dyeing sewage decoloration flocculant the most according to claim 1, it is characterised in that Described polyacrylamide is PAMA, and molecular weight is 800-1200 ten thousand.
A kind of dyeing sewage decoloration flocculant the most according to claim 1, it is characterised in that Described diatomaceous dioxide-containing silica is 60-80%.
A kind of dyeing sewage decoloration flocculant the most according to claim 1, it is characterised in that Described lignin is aminated lignin, and molecular weight is 10000-20000.
A kind of dyeing sewage decoloration flocculant the most according to claim 1, it is characterised in that Described Dexol is powder, and particle diameter is 5-25 μm.
6. a preparation method for a kind of dyeing sewage decoloration flocculant as claimed in claim 1, it is special Levy and be, comprise the following steps: in powder mixer, add kieselguhr and lignin, stir, Then it is slowly added polyacrylamide, finally adds Dexol, continue stirring, to obtain final product.
CN201610046793.XA 2016-01-22 2016-01-22 Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof CN105731616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610046793.XA CN105731616A (en) 2016-01-22 2016-01-22 Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610046793.XA CN105731616A (en) 2016-01-22 2016-01-22 Printing and dyeing wastewater decoloration flocculating agent and preparation method thereof

Publications (1)

Publication Number Publication Date
CN105731616A true CN105731616A (en) 2016-07-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106219718A (en) * 2016-08-30 2016-12-14 杜普利 High salt acid sewage treating agent

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004261637A (en) * 2003-02-06 2004-09-24 Idemitsu Kosan Co Ltd Treatment method for hardly decomposable harmful substance-containing waste water
CN101215016A (en) * 2008-01-11 2008-07-09 浙江理工大学 Method for treating organic waste water
CN103641247A (en) * 2013-12-27 2014-03-19 姚为 Domestic sewage treatment agent and preparation method thereof
CN104229957A (en) * 2013-06-24 2014-12-24 张家领 Compound flocculant taking natural minerals as main components
CN104291425A (en) * 2014-11-10 2015-01-21 北京泛博化学股份有限公司 Special flocculation decolorizing agent for fur oxidation dyeing sewage and preparing method thereof
CN105000651A (en) * 2015-08-25 2015-10-28 宁波保税区维迪克环保科技有限公司 Electroplating wastewater treatment agent
CN105084437A (en) * 2015-08-25 2015-11-25 宁波保税区维迪克环保科技有限公司 Coking sewage treating agent and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004261637A (en) * 2003-02-06 2004-09-24 Idemitsu Kosan Co Ltd Treatment method for hardly decomposable harmful substance-containing waste water
CN101215016A (en) * 2008-01-11 2008-07-09 浙江理工大学 Method for treating organic waste water
CN104229957A (en) * 2013-06-24 2014-12-24 张家领 Compound flocculant taking natural minerals as main components
CN103641247A (en) * 2013-12-27 2014-03-19 姚为 Domestic sewage treatment agent and preparation method thereof
CN104291425A (en) * 2014-11-10 2015-01-21 北京泛博化学股份有限公司 Special flocculation decolorizing agent for fur oxidation dyeing sewage and preparing method thereof
CN105000651A (en) * 2015-08-25 2015-10-28 宁波保税区维迪克环保科技有限公司 Electroplating wastewater treatment agent
CN105084437A (en) * 2015-08-25 2015-11-25 宁波保税区维迪克环保科技有限公司 Coking sewage treating agent and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106219718A (en) * 2016-08-30 2016-12-14 杜普利 High salt acid sewage treating agent
CN106219718B (en) * 2016-08-30 2019-06-11 杜普利 Acid sewage treating agent with high salt

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Application publication date: 20160706