CN101712503A - Processing method of printing and dyeing textile sewage - Google Patents

Processing method of printing and dyeing textile sewage Download PDF

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Publication number
CN101712503A
CN101712503A CN200910101402A CN200910101402A CN101712503A CN 101712503 A CN101712503 A CN 101712503A CN 200910101402 A CN200910101402 A CN 200910101402A CN 200910101402 A CN200910101402 A CN 200910101402A CN 101712503 A CN101712503 A CN 101712503A
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China
Prior art keywords
mud
sewage
printing
treatment
embryo
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CN200910101402A
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Chinese (zh)
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CN101712503B (en
Inventor
丁国云
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长兴县夹浦污水处理有限公司
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Priority to CN200910101402XA priority Critical patent/CN101712503B/en
Publication of CN101712503A publication Critical patent/CN101712503A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention relates to a processing technology of industrial sewage, in particular to a processing method of printing and dyeing textile sewage, which comprises the following steps: (1) processing and depositing sewage: adding purifying agent into printing and dyeing industrial sewage for processing and depositing to obtain sludge; (2) adding flocculating agent for filter pressing: adding flocculating agent into the sludge for mixing, and filtering moisture by a filter press to obtain sludge clumps; (3) removing blanks: adding calcium oxide into the sludge clumps obtained after filter pressing and uniformly mixing to obtain sludge blanks; and (4) forming: conveying the sludge blanks into a forming machine for pressure maintaining dehydration to obtain sludge blocks. The invention enhances the flammability of the sludge blocks through the above steps so that the sludge blocks can be used as industrial fuels, thereby greatly increasing the use value of by-products of sewage processing and reducing the cost of sewage processing simultaneously.

Description

The treatment process of printing and dyeing textile sewage

Technical field

The present invention relates to a kind of industrial sewage treatment technology, be specifically related to a kind of treatment process of printing and dyeing textile sewage.

Background technology

At present, both at home and abroad the treatment process of the mud that produced in the industrial sewage treating processes is mainly contained: burning, landfill, compost or the like.The prerequisite that these methods are handled mud must be the mud that is produced by biochemical treatment sewage, because being carried out harmless treatment, mud need rely on microorganism organic pollutant is degraded and to decompose fully, microorganism needs enough nutritive substances and keeps existence and the procreation of self in the process of degraded or decomposing organic pollutant, so just require to contain in the mud isostatic nutrition, the biochemical process mud that is produced of disposing of sewage can satisfy the demand of microorganism.

But the mud that materialization is disposed of sewage and produced, its nutrient inventory is well below the mud that biochemical treatment produced, so can only adopt the method for landfill, burning to the dispose of sewage mud that produced of materialization at present.When the mud that is produced is handled in the landfill materialization,, can cause serious secondary pollution to environment because contain a large amount of harmful microorganisms, virus and other organic pollutants thereof in the mud.And directly mud is burned through row, because the fuel value of mud is low, water content is high, need to consume a large amount of fuel, and income is lower, wasted some resources that originally can reclaim.

Summary of the invention

The purpose of this invention is to provide a kind of processing cost that can reduce dyeing industrial sewage, improve the treatment process of the printing and dyeing textile sewage of handling the byproduct added value.

Above-mentioned technical purpose of the present invention is achieved by the following technical programs:

The treatment process of printing and dyeing textile sewage, it may further comprise the steps:

(1) sewage disposal precipitation: dyeing industrial sewage added scavenging agent is handled, precipitation obtains mud;

(2) add the flocculation agent press filtration: flocculation agent is added in the mud mix, and, obtain walk by pressure filter elimination moisture;

(3) take off embryo: add unslaked lime in the walk that after press filtration, obtains, and mix, obtain the mud embryo;

(4) be shaped: the mud embryo is sent into shaper pressurize dehydration, promptly obtain the mud clod.

Treatment process products obtained therefrom of the present invention is the mud clod, and its combustibility is good, can be as industrial fuel.Prior art thinks that sewage gained mud combustibility is poor and burning is not thorough, needs other fuel that it is burned, and the energy that this does not only utilize mud itself has consumed other energy on the contrary.The present invention has strengthened the combustibility of mud clod by the processing of above steps, makes it greatly increase the use value of sewage water treatment byproduct as industrial fuel, has reduced the cost of sewage disposal simultaneously.

Raw materials used and additive mostly is industry and domestic refuse in each step, and its cost is very cheap.

The composition of printing and dyeing textile sewage generally contains large amount of organic, and contains heavy metal element hardly, can not produce secondary pollution after making the mud clod burning that is made by printing and dyeing textile sewage.

Dyeing industrial sewage in the described sewage disposal settling step is the sewage that dyeing machine, loom and water jet loom produce.This notion is well known to those skilled in the art, and contains a large amount of organism in this industrial sewage.

As preferably, the scavenging agent that adds in the described sewage disposal settling step is the oxygenation PAFS, and its add-on is 250mg~500mg/L.Adopt the oxygenation PAFS as scavenging agent, scavenging agent such as ferrous sulfate and lime carbonate commonly used in other sewage treatment process have been replaced, make that the sewage sediment after handling is few, significantly reduced the generation of mud, and the general red phenomenon of water quality is disappeared substantially, thereby make enterprise save cost.

Described adding in the flocculation agent press filtration step,, the flocculation agent of adding is one or more of diatomite or polyacrylamide, and the add-on of described flocculation agent is 1 ‰ of mud weight~5 ‰.

Described taking off in the embryo step, the unslaked lime amount of adding is 10 ‰ of mud weight~15 ‰.

In the described forming step, the additive of adding is one or more in raw coal, straw, wood fragments bits, the clay, and the add-on of described additive is 5%~15% of a mud weight.Can strengthen mud clod stickiness like this, make the mud clod can be, and further increase the combustibility of mud clod because of air-dry and cracking or broken.

As of the present invention preferred, controlling the described water ratio that takes off the mud embryo that last mixing obtains in the embryo step is 60%~75%.

As preferably, in the described forming step, the water ratio of the mud clod that control obtains is 45%~55%.

The present invention has also provided a kind of purposes of utilizing above-mentioned dyeing industrial sewage processing gained solid waste to act as a fuel.

When gained mud clod of the present invention acts as a fuel, its use-pattern is consistent with general coal cinder, can not produce obnoxious flavour during burning, fuel value is 3000~4300 kilocalories, 2 tons of mud clods just are equivalent to 1 ton of raw coal, resource energy recovery utilization ratio is very high, and cost is quite cheap when using as industrial fuel.

In sum, the present invention has following beneficial effect:

1, treatment process products obtained therefrom of the present invention is the mud clod, and its combustibility is good, can be as industrial fuel.Prior art thinks that sewage gained mud combustibility is poor and burning is not thorough, needs other fuel that it is burned.The present invention has strengthened the combustibility of mud clod by above steps, makes it greatly increase the use value of sewage water treatment byproduct as industrial fuel, has reduced the cost of sewage disposal simultaneously;

2, the mud clod fuel value produced of the present invention is 3000~4300 kilocalories, and 2 tons of mud clods just are equivalent to 1 ton of raw coal, and resource energy recovery utilization ratio is very high;

3, the present invention adopts the oxygenation PAFS as scavenging agent, replace ferrous sulfate and lime carbonate in the past, made that the sewage sediment after handling is few, significantly reduced the generation of mud, and the general red phenomenon of water quality is disappeared substantially, thereby make enterprise save cost.

Embodiment

This specific embodiment only is an explanation of the invention; it is not a limitation of the present invention; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification sheets, but as long as all are subjected to the protection of patent law in claim scope of the present invention.

The treatment process of embodiment 1, printing and dyeing textile sewage, it may further comprise the steps:

(1) sewage disposal precipitates: after industrial sewage is added the scavenging agent processing, pump to mudpan, precipitation obtains mud;

(2) add the flocculation agent press filtration: flocculation agent is added in the mud mix, and, obtain walk by pressure filter elimination redundant moisture;

(3) take off embryo: add unslaked lime in the walk that after filtering, obtains, and mix, obtain the mud embryo;

(4) be shaped: in the mud embryo, add additive again, send into shaper pressurize dehydration after the mixing, promptly obtain the mud clod.

The scavenging agent that adds in the sewage disposal settling step is the oxygenation PAFS, and add-on is 300mg/L.

Add in the flocculation agent press filtration step, the flocculation agent of adding is a polyacrylamide, and the add-on of described polyacrylamide is 1 ‰ of a mud weight.

Take off in the embryo step, the unslaked lime amount of adding is 10 ‰ of a mud weight.

In the forming step, the additive of adding is 1: 1 mixture of raw coal and straw, and the add-on of described additive is 5% of a mud weight.

The water ratio of mud embryo is 70%.

In the forming step, the water ratio of the mud clod that obtains is 55%.

Industrial sewage in the sewage disposal settling step is the sewage that dyeing machine, loom and water jet loom produce.

The mud clod that so makes is 3200 kilocalories in air-dry afterfire value, and the pH value of mud clod is 6.5, and heavy metal content is 0%.

The treatment process of embodiment 2, printing and dyeing textile sewage, it may further comprise the steps:

(1) sewage disposal precipitates: after industrial sewage is added the scavenging agent processing, pump to mudpan, precipitation obtains mud;

(2) add the flocculation agent press filtration: flocculation agent is added in the mud mix, and, obtain walk by pressure filter elimination redundant moisture;

(3) take off embryo: add unslaked lime in the walk that after filtering, obtains, and mix, obtain the mud embryo;

(4) be shaped: in the mud embryo, add additive again, send into shaper pressurize dehydration after the mixing, promptly obtain the mud clod.

The scavenging agent that adds in the sewage disposal settling step is the oxygenation PAFS, and add-on is 200mg/L.

Add in the flocculation agent press filtration step, the flocculation agent of adding is a polyacrylamide, and the add-on of described polyacrylamide is 3 ‰ of a mud weight.

Take off in the embryo step, the unslaked lime amount of adding is 12 ‰ of a mud weight.

In the forming step, the additive of adding is 1: 1 mixture of raw coal and straw, and the add-on of described additive is 10% of a mud weight.

The water ratio of mud embryo is 65%.

In the forming step, the water ratio of the mud clod that obtains is 50%.

Industrial sewage in the sewage disposal settling step is the sewage that dyeing machine, loom and water jet loom produce.

The mud clod that so makes is 3600 kilocalories in air-dry afterfire value, and the pH value of mud clod is 6.8, and heavy metal content is 0%.

The treatment process of embodiment 3, printing and dyeing textile sewage, it may further comprise the steps:

(1) sewage disposal precipitates: after industrial sewage is added the scavenging agent processing, pump to mudpan, precipitation obtains mud;

(2) add the flocculation agent press filtration: flocculation agent is added in the mud mix, and, obtain walk by pressure filter elimination redundant moisture;

(3) take off embryo: add unslaked lime in the walk that after filtering, obtains, and mix, obtain the mud embryo;

(4) be shaped: in the mud embryo, add additive again, send into shaper pressurize dehydration after the mixing, promptly obtain the mud clod.

The scavenging agent that adds in the sewage disposal settling step is the oxygenation PAFS, and add-on is 500mg/L.

Add in the flocculation agent press filtration step, the flocculation agent of adding is a diatomite, and described diatomaceous add-on is 5 ‰ of a mud weight.

Take off in the embryo step, the unslaked lime amount of adding is 20 ‰ of a mud weight.

In the forming step, the additive of adding is 1: 1 mixture of raw coal and straw, and the add-on of described additive is 15% of a mud weight.

The water ratio of mud embryo is 60%.

In the forming step, the water ratio of the mud clod that obtains is 45%.

Industrial sewage in the sewage disposal settling step is the sewage that dyeing machine, loom and water jet loom produce.

The mud clod that so makes is 4100 kilocalories in air-dry afterfire value, and the pH value of mud clod is 7.0, and heavy metal content is 0%.

Claims (10)

1. the treatment process of printing and dyeing textile sewage, it is characterized in that: it may further comprise the steps:
(1) sewage disposal precipitation: printing and dyeing textile sewage added scavenging agent is handled, precipitation obtains mud;
(2) add the flocculation agent press filtration: flocculation agent is added in the mud mix, and, obtain walk by pressure filter elimination moisture;
(3) take off embryo: add unslaked lime in the walk that after press filtration, obtains, and mix, obtain the mud embryo;
(4) be shaped: the mud embryo is sent into shaper pressurize dehydration, promptly obtain the mud clod.
2. the treatment process of printing and dyeing textile sewage according to claim 1 is characterized in that: also add increase mud embryo viscosity and/or flammable additive in the described forming step in the mud embryo.
3. the treatment process of printing and dyeing textile sewage according to claim 1 is characterized in that: the described water ratio 60~75% that adds pressure filter press filtration gained walk in the flocculation agent press filtration step.
4. the treatment process of printing and dyeing textile sewage according to claim 1, it is characterized in that: the scavenging agent that adds in the described sewage disposal settling step is an oxygenation oxygen PAFS, and add-on is 250mg~500mg/L.
5. the treatment process of printing and dyeing textile sewage according to claim 1, it is characterized in that: described adding in the flocculation agent press filtration step,, described flocculation agent is one or more of diatomite or polyacrylamide, and its add-on is 1 ‰ of mud weight~5 ‰.
6. the treatment process of printing and dyeing textile sewage according to claim 1, it is characterized in that: described taking off in the embryo step, the unslaked lime amount of adding is 10 ‰ of mud weight~15 ‰.
7. the treatment process of printing and dyeing textile sewage according to claim 2, it is characterized in that: in the described forming step, the additive that adds is one or more in raw coal, straw, wood fragments bits, the clay, and the add-on of described additive is 5%~15% of a mud weight.
8. the treatment process of printing and dyeing textile sewage according to claim 1 is characterized in that: describedly take off that the last water ratio that mixes the mud embryo that obtains is 60%~75% in the embryo step.
9. the treatment process of printing and dyeing textile sewage according to claim 1, it is characterized in that: in the described forming step, the water ratio of the mud clod that obtains is 45%~55%.
10. purposes that acts as a fuel according to the described method gained of claim 1 mud clod.
CN200910101402XA 2009-08-01 2009-08-01 Processing method of printing and dyeing textile sewage CN101712503B (en)

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CN101712503B CN101712503B (en) 2011-08-31

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857391A (en) * 2010-05-28 2010-10-13 常州工程职业技术学院 Printing and dyeing sewage recycling method
CN102703155A (en) * 2012-06-27 2012-10-03 环境保护部南京环境科学研究所 Biomass fuel based on sludge, straw and raw coal, preparation method of biomass fuel and application of fuel slag
CN103073166A (en) * 2013-02-05 2013-05-01 上海市环境科学研究院 Method for simultaneously stabilizing heavy metals and deeply dewatering municipal sludge for municipal sludge
CN109231642A (en) * 2018-09-25 2019-01-18 安顺优品洗涤有限公司 A kind of purification method of wash water

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101857391A (en) * 2010-05-28 2010-10-13 常州工程职业技术学院 Printing and dyeing sewage recycling method
CN101857391B (en) * 2010-05-28 2012-12-12 常州工程职业技术学院 Printing and dyeing sewage recycling method
CN102703155A (en) * 2012-06-27 2012-10-03 环境保护部南京环境科学研究所 Biomass fuel based on sludge, straw and raw coal, preparation method of biomass fuel and application of fuel slag
CN102703155B (en) * 2012-06-27 2014-05-28 环境保护部南京环境科学研究所 Biomass fuel based on sludge, straw and raw coal, preparation method of biomass fuel and application of fuel slag
CN103073166A (en) * 2013-02-05 2013-05-01 上海市环境科学研究院 Method for simultaneously stabilizing heavy metals and deeply dewatering municipal sludge for municipal sludge
CN103073166B (en) * 2013-02-05 2014-10-22 上海市环境科学研究院 Method for simultaneously stabilizing heavy metals and deeply dewatering municipal sludge for municipal sludge
CN109231642A (en) * 2018-09-25 2019-01-18 安顺优品洗涤有限公司 A kind of purification method of wash water

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Publication number Publication date
CN101712503B (en) 2011-08-31

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Address after: Dingjiazhu, Jiapu Town, Changxing County, Huzhou City, Zhejiang Province

Patentee after: Changxing Chengze water Co.,Ltd.

Address before: 313109 Jiapu sewage treatment Co., Ltd. of Changxing County, Zhejiang Province

Patentee before: CHANGXING JIAPU SEWAGE TREATMENT Co.,Ltd.

CP03 "change of name, title or address"