CN106315922A - Extraction and utilization method for pollutants in black printing waste water - Google Patents
Extraction and utilization method for pollutants in black printing waste water Download PDFInfo
- Publication number
- CN106315922A CN106315922A CN201610904383.4A CN201610904383A CN106315922A CN 106315922 A CN106315922 A CN 106315922A CN 201610904383 A CN201610904383 A CN 201610904383A CN 106315922 A CN106315922 A CN 106315922A
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- Prior art keywords
- waste water
- sludge
- mud
- stirring
- pollutants
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Classifications
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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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses an extraction and utilization method for pollutants in black printing waste water, comprising the following steps: adding acid to the black plastic printing waste water, stirring the waste water for 10-30min to coagulate the pollutants, and carrying out mud water separation by an air flotation method or precipitation method; adding calcium mineral powder to the separated sludge, and after stirring uniformly, carrying out thermal dehydration on the sludge while stirring the sludge to form sludge blocks; taking out the sludge blocks, thermally pressing the sludge until the water content is below 30% and baking the sludge; heating the baked sludge to 400-700 DEG C under an air-free condition and insulating for 1-5h; cooling the sludge to below 50 DEG C, crushing and granulating the sludge, and uniformly sprinkling a wetting agent solution with mass concentration of 0.05-0.2%; adding sludge particles into cationic dye waste water, aerating and stirring the waste water for 10-60 min, and then precipitating or filtering waste water to remove the sludge particles to obtain almost colorless waste water; and recovering the sludge particles and carrying out heat regeneration at 400-700 DEG C for recycling. The extraction and utilization method for pollutants in black printing waste water realizes extraction of pollutants in the black printing waste water and reclamation and utilization of solid waste, and the decoloring rate of the cationic dye waste water is approximately 100%.
Description
Technical field
The invention belongs to environmental engineering technical field, extract particularly to a kind of black plastic printing waste water pollutant
And the method utilized.
Background technology
At present, substantial amounts of plastics package (waterproof) material is increasingly employed water-base ink when stamp, is producing
Journey creates a certain amount of printing waste water.Containing the pollutant such as pigment, water-soluble resin in this kind of waste water, its content of organics
Height, the COD of usual waste waterCr: 5000-30000 mg/L；Colourity: 5000-20000 times.Wastewater biodegradability is poor, pollutes the tightest
Weight, it is more difficult to process.
For the process of this kind of waste water, partition method is the most first used to carry out pretreatment, such as coagulating sedimentation or mixed condensed gas flotation process,
First dosing coagulant makes Organic Pollutants in Wastewater cohesion form mud, then uses the solid-liquid separating methods such as precipitation or air supporting to remove
Substantial amounts of suspension polluter in waste water, water outlet carries out other chemistry or biological treatment again, it is achieved discharge after up to standard.Muddy water divides
Carry out landfill disposal by forming mud cake after mechanism filter-pressing or centrifuge dehydration as solid waste from the mud produced, both easily cause two
Secondary pollution, and recycling can not be realized.
Summary of the invention
It is an object of the invention to provide a kind of method that in black plastic printing waste water, pollutant extract and utilize.
For achieving the above object, the technology of the present invention method employing following steps:
Adding acid in black plastic printing waste water, stir 10-30min, make pollutant condense, employing air supporting method or the sedimentation method will
Mud-water separation, and sludge concentration is adjusted to solid content 5-10%；The calcium breeze of 5-10g/L is added, after stirring in mud
While stirring mud is heated to 50-95 DEG C of dehydration, makes mud form bulk；Take out block sludge hot squeezing to be less than to moisture content
In 50-100 DEG C of drying after 30%；Drying mud isolation air is heated to 400-700 DEG C of insulation 1-5h；Mud is cooled to 50
It is broken into graininess below DEG C, uniformly sprays mix homogeneously after the wetting agent solution that mass concentration is 0.05-0.2%；By mud
Grain is joined in cationic dyeing waste water by 2-10g/L waste water consumption, and aeration agitation 10-120min makes waste water decoloring, heavy
Form sediment or filter separated sludge granule and reclaim；After reclaiming 400-700 DEG C of hot recycling of mud granule, recycle.
Beneficial effect:
A. black plastic printing waste water is treated by the present method, and percent of decolourization is up to more than 99.7%, CODCrClearance reach 90% with
On, pollutant extraction rate reached more than 90%, it is achieved that the recycling of solid waste；
B. cationic dyeing waste water is through adding mud granule desolventing technology, decolorization rate of wastewater nearly 100%.
Detailed description of the invention
The present invention is further illustrated below by specific embodiment.
Embodiment 1
In black plastic printing waste water, add the sulphuric acid of 40%, stir 15min, make pollutant condense, use the sedimentation method to carry out mud
Water separates；In isolated mud, add the 300-500 mesh calcium breeze of 5g/L, while stirring mud is added after stirring
Heat, to 85 DEG C of dehydrations, makes mud form bulk；Take out after block sludge hot squeezing is less than 30% to moisture content in 100 DEG C of drying；Will
Dry mud isolation air and be heated to 500 DEG C of insulation 2h；Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spray matter
Amount concentration is the wetting agent solution of 0.1%；Mud granule is joined blue cationic dyeing waste water by 5g/L waste water consumption
In, aeration agitation 20min postprecipitation removes mud granule, blue cationic dyeing decolorization rate of wastewater 99.8%.Mud granule
After reclaiming hot recycling, recycle.
Embodiment 2
In black plastic printing waste water, add the hydrochloric acid of 40%, stir 20min, make pollutant condense, use the sedimentation method to carry out mud
Water separates；In isolated mud, add the 300-500 mesh calcium breeze of 5g/L, while stirring mud is added after stirring
Heat, to 83 DEG C of dehydrations, makes mud form bulk；Take out after block sludge hot squeezing is less than 30% to moisture content in 100 DEG C of drying；Will
Dry mud isolation air and be heated to 600 DEG C of insulation 1h；Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spray matter
Amount concentration is the wetting agent solution of 0.1%；Mud granule is joined red cationic dyeing waste water by 8g/L waste water consumption
In, aeration agitation 60min postprecipitation removes mud granule, red cationic dyeing decolorization rate of wastewater 99.6%.Mud granule
After reclaiming hot recycling, recycle.
Embodiment 3
In black plastic printing waste water, add the sulphuric acid of 40%, stir 15min, make pollutant condense, use the sedimentation method to carry out mud
Water separates；In isolated mud, add the 300-500 mesh calcium breeze of 8g/L, while stirring mud is added after stirring
Heat, to 80 DEG C of dehydrations, makes mud form bulk；Take out after block sludge hot squeezing is less than 30% to moisture content in 100 DEG C of drying；Will
Dry mud isolation air and be heated to 550 DEG C of insulation 2h；Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spray matter
Amount concentration is the wetting agent solution of 0.15%；Mud granule is joined cationic yellow dyes dyeing by 6g/L waste water consumption useless
In water, aeration agitation 50min postprecipitation removes mud granule, cationic yellow dyes dyeing waste-water decolorizing rate 99.50%.Mud
After granule reclaims hot recycling, recycle.
Embodiment 4
In black plastic printing waste water, add the sulphuric acid of 40%, stir 20min, make pollutant condense, use the sedimentation method to carry out mud
Water separates；In isolated mud, add the 300-500 mesh calcium breeze of 5g/L, while stirring mud is added after stirring
Heat, to 85 DEG C of dehydrations, makes mud form bulk；Take out after block sludge hot squeezing is less than 30% to moisture content in 100 DEG C of drying；Will
Dry mud isolation air and be heated to 500 DEG C of insulation 2h；Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spray matter
Amount concentration is the wetting agent solution of 0.05%；By 6g/L waste water consumption, mud granule is joined blue cationic dyeing give up
In water, aeration agitation 20min postprecipitation removes mud granule, blue cationic dyeing decolorization rate of wastewater 99.5%.
Mud granule 550 DEG C regeneration will be reclaimed, mud granule will be joined the blue dye of positive ion by 8g/L waste water consumption
Recycling in dyeing waste-water, aeration agitation 60min postprecipitation removes mud granule, blue cationic dyeing waste water decoloring
Rate 99.7%, cationic dyeing decolorization rate of wastewater reduces without obvious, and the nearlyest 100%.
Use the inventive method, it is achieved that the high efficiency extraction of pollutant and recycling in black plastic printing waste water,
Stop secondary pollution, and made cationic dyeing decolorization rate of wastewater reach nearly 100%, opened solid wastes recycling and utilize
New way.
Claims (4)
1. the method that black printed Wastewater Pollutant extracts and utilizes, comprises the following steps:
Adding acid in black plastic printing waste water, stir 10-30min, employing air supporting method or the sedimentation method are by mud-water separation, and incite somebody to action
Sludge concentration is adjusted to solid content 5-10%；The calcium breeze of 5-10g/L is added, while stirring by dirt after stirring in mud
Mud is heated to 50-95 DEG C of dehydration, makes mud form bulk；Take out after block sludge hot squeezing is less than 30% to moisture content in 50-
100 DEG C of drying；Drying mud isolation air is heated to 400-700 DEG C of insulation 1-5h；Mud is cooled to less than 50 DEG C crush
Become graininess, uniformly spray mix homogeneously after the wetting agent solution that mass concentration is 0.05-0.2%；By mud granule by certain
Consumption joins in cationic dyeing waste water, and aeration agitation 10-120min makes waste water decoloring, precipitates or filters separated sludge
Granule also reclaims；Reclaim 400-700 DEG C of hot recycling of mud granule, recycle.
The method that a kind of black printed Wastewater Pollutant the most according to claim 1 extracts and utilizes, it is characterised in that institute
The acid stated is mineral acid or organic acid.
The method that a kind of black printed Wastewater Pollutant the most according to claim 1 extracts and utilizes, it is characterised in that institute
The calcium breeze stated is calcium carbonate, calcium oxide or its mixture.
The method that a kind of black printed Wastewater Pollutant the most according to claim 1 extracts and utilizes, it is characterised in that institute
The wetting agent stated is nonionic or anionic wetting agents or its mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904383.4A CN106315922B (en) | 2016-10-18 | 2016-10-18 | Method for extracting and utilizing black printing wastewater pollutants |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904383.4A CN106315922B (en) | 2016-10-18 | 2016-10-18 | Method for extracting and utilizing black printing wastewater pollutants |
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| Publication Number | Publication Date |
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| CN106315922A true CN106315922A (en) | 2017-01-11 |
| CN106315922B CN106315922B (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610904383.4A Active CN106315922B (en) | 2016-10-18 | 2016-10-18 | Method for extracting and utilizing black printing wastewater pollutants |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126707A (en) * | 2018-09-20 | 2019-01-04 | 青岛大学 | A kind of method that stamp waste liquor contamination object is extracted and utilized |
| CN111921486A (en) * | 2020-07-09 | 2020-11-13 | 内江师范学院 | Nano calcium carbonate and preparation method and application thereof |
| CN112479535A (en) * | 2020-11-27 | 2021-03-12 | 绍兴泰谱环保科技有限公司 | Air supporting mud low pressure rapid filter pressing dewatering device |
Citations (4)
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| CN101362073A (en) * | 2008-09-27 | 2009-02-11 | 山东大学 | Preparation method of acidification sludge bentonite granules |
| CN101811021A (en) * | 2010-04-26 | 2010-08-25 | 西北农林科技大学 | Amphiphilic adsorbent capable of adsorbing both organic matter and heavy metal cation and preparation method thereof |
| CN102205964A (en) * | 2011-04-25 | 2011-10-05 | 山东大学 | Granular activated carbon filler for paper mill sludge and preparation method thereof |
| CN103752274A (en) * | 2013-12-12 | 2014-04-30 | 西北农林科技大学 | Amphiprotic-Gemini type cationic composite adsorbent, and preparation method thereof |
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2016
- 2016-10-18 CN CN201610904383.4A patent/CN106315922B/en active Active
Patent Citations (4)
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| CN101362073A (en) * | 2008-09-27 | 2009-02-11 | 山东大学 | Preparation method of acidification sludge bentonite granules |
| CN101811021A (en) * | 2010-04-26 | 2010-08-25 | 西北农林科技大学 | Amphiphilic adsorbent capable of adsorbing both organic matter and heavy metal cation and preparation method thereof |
| CN102205964A (en) * | 2011-04-25 | 2011-10-05 | 山东大学 | Granular activated carbon filler for paper mill sludge and preparation method thereof |
| CN103752274A (en) * | 2013-12-12 | 2014-04-30 | 西北农林科技大学 | Amphiprotic-Gemini type cationic composite adsorbent, and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126707A (en) * | 2018-09-20 | 2019-01-04 | 青岛大学 | A kind of method that stamp waste liquor contamination object is extracted and utilized |
| CN111921486A (en) * | 2020-07-09 | 2020-11-13 | 内江师范学院 | Nano calcium carbonate and preparation method and application thereof |
| CN112479535A (en) * | 2020-11-27 | 2021-03-12 | 绍兴泰谱环保科技有限公司 | Air supporting mud low pressure rapid filter pressing dewatering device |
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| Publication number | Publication date |
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| CN106315922B (en) | 2020-02-14 |
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