CN106348492A - Method for extracting black printing wastewater pollutants and preparing wastewater decolorant - Google Patents
Method for extracting black printing wastewater pollutants and preparing wastewater decolorant Download PDFInfo
- Publication number
- CN106348492A CN106348492A CN201610904385.3A CN201610904385A CN106348492A CN 106348492 A CN106348492 A CN 106348492A CN 201610904385 A CN201610904385 A CN 201610904385A CN 106348492 A CN106348492 A CN 106348492A
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- Prior art keywords
- mud
- sludge
- waste water
- wastewater
- stirring
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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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
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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
-
- 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
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention discloses a method for extracting black printing wastewater pollutants and preparing a wastewater decolorant. The method comprises the following steps: adding an acid into black plastic printing wastewater, stirring for 5-30 minutes until the pollutants aggregate, carrying out sludge-water separation by a flotation process or precipitation process, and concentrating the sludge; adding calcium ore powder and pumice granules into the concentrated sludge to regulate the specific gravity of the sludge, stirring uniformly, heating the sludge to 50-95 DEG C while stirring so as to perform dewatering, thereby obtaining a sludge block; carrying out hot pressing on the sludge block, and baking or naturally drying; heating the sludge to 450-650 in the absence of air, and keeping the temperature for 1-4 hours; cooling the sludge to 50 DEG C or below, crushing into granules, spraying a wetting agent solution, and uniformly mixing to obtain a suspension decolorant; and adding the sludge granules into the cationic dyeing wastewater, aerating by stirring, and carrying out recovery and 450-650-DEG C heat regeneration on the sludge for cyclic use. The method implements extraction of black printing wastewater pollutants and recycling of solid wastes, so that the decolorization rate of the cationic dyeing wastewater reaches 99.5% or above.
Description
Technical field
The invention belongs to environmental engineering technical field, extract particularly to a kind of black printed Wastewater Pollutant and make
The method of standby waste water decoloration of cation dyes agent.
Background technology
Water color ink constantly expands because of its environmental protection, security application scope, according to incompletely statistics, the use of Chinese water color ink
Amount is just with more than 20% speed increase.Substantial amounts of plastics package (waterproof) material is increasingly employed aqueouss oil in stamp
Ink, creates a certain amount of printing waste water in process of production.This kind of wastewater through organic matter content is high, the cod of usual waste watercr:
5000-30000 mg/l；Colourity: 5000-20000 times.Wastewater biodegradability is poor, and pollution is extremely seriously it is more difficult to process.
For the process of this kind of waste water, generally first pretreatment is carried out using partition method, such as coagulating sedimentation or mixed condensed gas flotation process,
First dosing coagulant makes Organic Pollutants in Wastewater condense and forms mud, then is removed using solid-liquid separating methods such as precipitation or air supportings
Suspension pollutant in waste water, water outlet carries out other chemistry or biological treatment again, realizes rear discharge up to standard.Mud-water separation produces
Mud is formed mud cake after mechanism filter-pressing or centrifuge dehydration and carries out landfill disposal usually as solid waste, has both easily caused secondary dirt
Dye, and do not enable recycling.
Content of the invention
It is an object of the invention to provide a kind of black water ink jet printing Wastewater Pollutant extracts and preparation cation dye
The method of material waste water decoloring agent.
For achieving the above object, the technology of the present invention method adopts following steps:
Add acid in black plastic printing waste water, stir 5-30min, so that pollutant is condensed, will using Bubble-floating Method or the sedimentation method
Mud-water separation by sludge condensation to solid content 5%-10%；Calcium breeze and the 10-50g/ of 5-10g/l is added in the mud concentrating
Mud, with conditioning of mud proportion, is heated to 50-95 DEG C of dehydration after stirring, makes mud shape by the pumice granules of l while stirring
Become block；Block sludge hot is squeezed and is less than 50% post-drying or natural drying to moisture content；Mud isolation air is heated to
450-650 DEG C of insulation 1-4h；Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spraying mass concentration is 0.1-0.2%
Wetting agent solution after mix homogeneously, improve surface hydrophilicity, be prepared into floating type decolorising agent；Mud granule is pressed 2-10g/l
Waste water dosage is added in cationic dyeing waste water, aeration agitation 10-180min, and decolorization rate of wastewater can be made to reach 99.5%
More than, air supporting or filter to isolate mud granule and reclaim；After reclaiming 450-650 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% is it is achieved that the recycling of solid waste；
B. cationic dyeing waste water through add preparation floating type bleaching agent bleaching process, decolorization rate of wastewater reach 99.5% with
Go up and be easy to mud-water separation.
Specific embodiment
Further illustrate the present invention below by specific embodiment.
Embodiment 1
Add acid in black plastic printing waste water, stir 10min, so that pollutant is condensed, using Bubble-floating Method by mud-water separation simultaneously
By sludge condensation to solid content 7.3%；Add the calcium breeze of 7.3g/l and the pumice granules of 30g/l to adjust in the mud concentrating
Mud is heated to 85 DEG C of dehydrations after stirring, makes mud form bulk by section mud proportion while stirring；By block sludge hot
Squeeze and be less than 50% rear 100 DEG C of drying to moisture content；Mud isolation air is heated to 500 DEG C of insulation 2h；Mud is cooled to 50
It is broken into graininess below DEG C, uniformly spray mix homogeneously after the wetting agent solution that mass concentration is 0.1-0.2%, improve surface
Hydrophilic, is prepared into floating type decolorising agent；Mud granule is added to red cationic dyeing by 10g/l waste water dosage
In waste water, aeration agitation 30min, decolorization rate of wastewater reaches more than 99.7%, filters and removes mud granule and reclaim；Reclaim mud
After 500 DEG C of hot recycling of grain, recycle in cationic dyeing waste water decoloring.
10 mud granules of 500 DEG C of hot recycling are added continuously to cationic yellow dyes dyeing by 8g/l waste water dosage
In waste water, stirring 20min makes waste water decoloring, cationic yellow dyes dyeing waste-water decolorizing rate 99.6% after filtration.
Embodiment 2
Add acid in black plastic printing waste water, stir 15min, so that pollutant is condensed, using Bubble-floating Method by mud-water separation simultaneously
By sludge condensation to solid content 7.0%；Add the calcium breeze of 7.0g/l and the pumice granules of 25g/l to adjust in the mud concentrating
Mud is heated to 80 DEG C of dehydrations after stirring, makes mud form bulk by section mud proportion while stirring；By block sludge hot
Squeeze and be less than 50% rear 100 DEG C of drying to moisture content；Mud isolation air is heated to 550 DEG C of insulation 2h；Mud is cooled to 50
It is broken into graininess below DEG C, uniformly spray mix homogeneously after the wetting agent solution that mass concentration is 0.1-0.2%, improve surface
Hydrophilic, is prepared into floating type decolorising agent；Mud granule is added to mixed-cation dyeing by 8g/l waste water dosage
In waste water, aeration agitation 30min, decolorization rate of wastewater reaches more than 99.5%, filters and removes mud granule and reclaim；Reclaim mud
After 500 DEG C of hot recycling of grain, recycle in cationic dyeing waste water decoloring.
10 mud granules of 500 DEG C of hot recycling are added continuously to blue cationic dyeing by 6g/l waste water dosage
In waste water, stirring 30min makes waste water decoloring, blue cationic dyeing decolorization rate of wastewater more than 99.8% after filtration.
Using the inventive method it is achieved that the high efficiency extraction of pollutant and recycling in black plastic printing waste water,
Prevent secondary pollution, and made cationic dyeing decolorization rate of wastewater reach more than 99.5%, its decolorization rate is fast, granule
Easily precipitate, open the new way of solid wastes recycling utilization.
Claims (5)
1. a kind of method that black printed Wastewater Pollutant extracts and prepares waste water decoloring agent, comprises the following steps:
Add acid in black printed waste water, stir 5-30min, so that pollutant is condensed, using Bubble-floating Method or the sedimentation method by muddy water
Separate and adjust mud to solid content 5%-10%；The calcium breeze of 5-10g/l and 10-50g/l is added in the mud concentrating
Mud is heated to 50-95 DEG C of dehydration after stirring, makes mud form bulk by pumice granules while stirring；By block mud
Hot pressing is squeezed and is less than 50% post-drying or natural drying to moisture content；Mud isolation air is heated to 450-650 DEG C of insulation 1-4h；
Mud is cooled to less than 50 DEG C and is broken into graininess, uniformly spray the wetting agent solution that a certain amount of mass concentration is 0.1-0.2%
Mix homogeneously afterwards, is prepared into floating type decolorising agent；Mud granule is added to dye of positive ion dye by 2-10g/l waste water dosage
In color waste water, aeration agitation 10-180min makes waste water decoloring, air supporting or filter to isolate mud granule and reclaim；Reclaim mud
450-650 DEG C of hot recycling of granule, recycles.
2. the method that a kind of black printed Wastewater Pollutant according to claim 1 extracts and prepares waste water decoloring agent, its
The acid being characterised by described is mineral acid or organic acid.
3. the method that a kind of black printed Wastewater Pollutant according to claim 1 extracts and prepares waste water decoloring agent, its
The calcium breeze being characterised by described is Calcium Carbonate, calcium oxide or its mixture.
4. the method that a kind of black printed Wastewater Pollutant according to claim 1 extracts and prepares waste water decoloring agent, its
The pumice granules being characterised by described are 100-400 mesh.
5. the method that a kind of black printed Wastewater Pollutant according to claim 1 extracts and prepares waste water decoloring agent, its
The wetting agent being characterised by described is non-ionic or anionic wetting agent or its mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904385.3A CN106348492B (en) | 2016-10-18 | 2016-10-18 | A kind of method that black printed Wastewater Pollutant extracts and prepares waste water decoloring agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610904385.3A CN106348492B (en) | 2016-10-18 | 2016-10-18 | A kind of method that black printed Wastewater Pollutant extracts and prepares waste water decoloring agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106348492A true CN106348492A (en) | 2017-01-25 |
| CN106348492B CN106348492B (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610904385.3A Expired - Fee Related CN106348492B (en) | 2016-10-18 | 2016-10-18 | A kind of method that black printed Wastewater Pollutant extracts and prepares waste water decoloring agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192660A (en) * | 2017-12-20 | 2018-06-22 | 中国石油大学(华东) | Dehydrating aging agent prescription and its dewatering process |
| CN109126708A (en) * | 2018-09-20 | 2019-01-04 | 青岛大学 | A kind of adsorption decolouriser preparation method containing photochemical catalyst |
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 |
-
2016
- 2016-10-18 CN CN201610904385.3A patent/CN106348492B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
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| 曾作详 等: "《界面现象》", 31 January 2016, 滑动理工大学出版社 * |
| 简安刚: "《化学水处理300问》", 31 August 2014, 中国电力出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108192660A (en) * | 2017-12-20 | 2018-06-22 | 中国石油大学(华东) | Dehydrating aging agent prescription and its dewatering process |
| CN109126708A (en) * | 2018-09-20 | 2019-01-04 | 青岛大学 | A kind of adsorption decolouriser preparation method containing photochemical catalyst |
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| CN106348492B (en) | 2019-11-19 |
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Address after: 266071 No. 7 East Hongkong Road, Laoshan District, Shandong, Qingdao Patentee after: QINGDAO University Address before: 266071 Ningxia Road, Shandong, China, No. 308, No. Patentee before: QINGDAO University |
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