CN103408186B - Method for reusing terylene dispersing dye dyeing waste water - Google Patents
Method for reusing terylene dispersing dye dyeing waste water Download PDFInfo
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- CN103408186B CN103408186B CN201310299301.4A CN201310299301A CN103408186B CN 103408186 B CN103408186 B CN 103408186B CN 201310299301 A CN201310299301 A CN 201310299301A CN 103408186 B CN103408186 B CN 103408186B
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a method for reusing terylene dispersing dye dyeing waste water. The method comprises the following steps: adopting a water collection tank, carrying out physical and chemical precipitation, carrying out cartridge filtration, carrying out ultrafiltration, reusing in a clear water workshop, carrying out entering of concentrated waste water into a biochemical pool to be re-treated, and discharging after achieving the standard. In dye dyeing, high temperature leveling agent content in waste water is directly related to a COD factor, and effective degradation is difficultly achieved through the existing method. With the method, 80% of the high temperature leveling agent in the waste water can be recovered and reused, such that a production cost is effectively reduced, environmental pollution is reduced, and commissioning application effectiveness is quick.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment and reuse, particularly relate to a kind of method that high temperature levelling agent in terylene disperse dyeing wastewater is reused.
Background technology
Along with the reinforcement of environment protection dynamics, utilization of waste material and waste water recycling become the key element of human survival.In all textile wastes, dyeing terylene waste water is the most difficult.Need 200COD to discharge by requirement networking at present, reclamation rate reaches the new standard of 50%.The roughly processing technological flow that this area is commonly used is:
------------acidolysis pond---biochemical---just sinks---two sink---discharge to alkali readjustment to physico-chemical precipitation to anaerobism to water collecting basin.---gac---ultrafiltration---reverse osmosis membrane etc. that if need reuse, also will increase sand filtration.
Sand filtration and activated charcoal filter effect are absorption and resolving, within 1 year, do not clean and also can not block up container.Be without retaining phenomenon from another perspective, to the bacterioprotein after biochemistry, a small amount of dyestuff, the terylene oligopolymer produced in dyeing, without retaining phenomenon, in reuse process, dark color can produce white point, and light color can produce color dot.
Summary of the invention
The object of the present invention is to provide a kind of method reusing terylene disperse dyeing wastewater, on the basis of existing terylene disperse dyeing wastewater process, by being able to sufficient recycling to most high temperature levelling agent, improve the pollution of dyeing to environment.
The present invention is a kind of method reusing terylene disperse dyeing wastewater, and step is as follows successively:
------security personnel filter---ultrafiltration---reuse between clear water car---density wastewater enters biochemistry pool and again processes---qualified discharge to physico-chemical precipitation to water collecting basin.
Water collecting basin collects waste water and regulates.
Physico-chemical precipitation process in waste water, adds flocculation agent (being commonly called as: dosing) precipitate.Flocculation agent directly utilizes raw waste water facility.Adjust pH value, with ferrous sulfate or polymerize aluminum chloride.Add a small amount of polymeric amide to remove 80%-90% to the harmful dyestuff of dyeing quality and sizing agent.And flocculation is removed not fall and is retained by it dyeing reuse useful COD high temperature levelling agent.
Security personnel's filtration step, adopts cartridge filter, comprises the ultrafiltration bag that 6-11 theoretical precision is 1 micron, operating pressure 0.2-0.4MPa, retain dyestuff, thickness oligopolymer and sizing agent.
Ultra-filtration process, use 8 inches of polysulfone material, it retains molecular diameter is 0.01 micron, retains further dyestuff, oligopolymer and sizing agent.Even if its objective is that the dosing of flocculation sediment process also can be retained under blocking situation, ensure reuse water quality.
Workshop reuse 80%, all the other 10-20% enter biochemistry pool process up to standard after, discharge.
The inventive method embodies making full use of original treatment unit in fact, greatly reduces replacement investment, solves the problem of lack of space.Reuse pool and ultrafilter pond are changed into original anaerobic pond or acidolysis pond.
In terylene disperse dyeing, in waste water, high temperature levelling agent is when materialization dosing is flocculated, the 0-20 no matter dosing how many COD only decline.In actual treatment, the rear COD500-1000 of process is also just in time close to the COD that the consumption of high temperature levelling agent produces.High temperature levelling agent can carry out reclaiming and reusing, and dye light color is a small amount of to be added, and other can not add.Save the levelling agent of about 80%, application instant effect of going into operation.
The inventive method solves original place reason biochemistry pool device insufficient section and the residence time too short defect, reuse 80-90% waste water.The biochemistry pool residence time can increase by 4 times-9 times and substantially can ensure emission request
The inventive method does not add any medicament, its processing cost about 0.2 yuan/ton
Reduce the laid down cost of biochemistry pool.High temperature levelling agent COD about 500 every days biochemical COD decline about 60, as about COD2000 during concentration height can cause a large amount of bacterial death.Its particle of waste water after ultrafiltration reaches the cohesion that dispersed system can prevent dyestuff, prevents the generation of color dot.
Embodiment
Embodiment
Reuse a method for terylene disperse dyeing wastewater, step is as follows:
Collect dyeing waste-water in wastewater equalization pond, add flocculation agent (aluminium chlorohydroxide or ferrous sulfate) precipitation, gained precipitation can pass through pressure filter press filtration, and more than press filtration, liquid flows back to wastewater equalization pond, and press filtration mud is recycling, as: Route for pedestrians brick.
Then, supernatant liquor is proceeded to cartridge filter to filter, cartridge filter, comprise the ultrafiltration bag that 6-11 theoretical precision is 1 micron, operating pressure 0.2-0.4MPa, then using and retaining molecular diameter is that 8 inches of polysulfone material of 0.01 micron carry out ultrafiltration, retains further dyestuff, oligopolymer and sizing agent.
Reuse 80% high temperature levelling agent, gained density wastewater enters biochemistry pool and carries out biochemical treatment, and to degrade, residue 10%-20% high temperature levelling agent discharges to the emission standard meeting COD.
Use the present embodiment method upgrade to the technological transformation of old factory, utilize raw waste water treatment facility, occupied ground is little, inject capital into less, instant effect.
The method changes create beneficial result row from energy-conservation.Example: 20 8 inches of ultrafiltration produce water 10-15 ton/hour, 5.5 kilowatts, motor often produces 1 ton of productive power and is about half degree electricity.And discharge a water and enter pipe network and need 3 yuan/ton, tap water water rate 2.6 yuan/ton, water per ton brings benefits (3+2.6)-0.3=5.3.
The cost that the method effectively saves high temperature levelling agent is about 80%-90%, and decreasing pollution accomplishes less contamination environment, turns waste into wealth.
Claims (3)
1. reuse a method for terylene disperse dyeing wastewater, it is characterized in that step is as follows successively:
------security personnel filter---ultrafiltration---reuse between clear water car---density wastewater enters biochemistry pool and again processes---qualified discharge to physico-chemical precipitation to water collecting basin;
Described security personnel's filtration step, adopts cartridge filter, is equipped with the ultrafiltration bag that 6-11 theoretical precision is 1 micron, operating pressure 0.2-0.4MPa;
Described ultra-filtration process, uses 8 inches of polysulfone material, and retaining molecular diameter is 0.01 micron.
2. the method for recycling terylene disperse dyeing wastewater according to claim 1, it is characterized in that described physico-chemical precipitation process, is add flocculation agent.
3. the method for recycling terylene disperse dyeing wastewater according to claim 2, is characterized in that described flocculation agent is ferrous sulfate or polymerize aluminum chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299301.4A CN103408186B (en) | 2013-07-15 | 2013-07-15 | Method for reusing terylene dispersing dye dyeing waste water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299301.4A CN103408186B (en) | 2013-07-15 | 2013-07-15 | Method for reusing terylene dispersing dye dyeing waste water |
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| CN103408186A CN103408186A (en) | 2013-11-27 |
| CN103408186B true CN103408186B (en) | 2015-02-04 |
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| CN201310299301.4A Expired - Fee Related CN103408186B (en) | 2013-07-15 | 2013-07-15 | Method for reusing terylene dispersing dye dyeing waste water |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106430690B (en) * | 2015-08-13 | 2019-03-05 | 杭州臻世环境科技有限公司 | Fabric slurry is the desized wastewater treatment for reuse technique of acrylic compounds |
| CN107098497A (en) * | 2017-04-28 | 2017-08-29 | 芜湖富春染织股份有限公司 | The method of cheese dyeing coagulating waste water processing |
Citations (3)
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| CN1827535A (en) * | 2005-03-01 | 2006-09-06 | 三达膜科技（厦门）有限公司 | Dye waste water treatment method based on membrane technology |
| CN101205105A (en) * | 2007-12-18 | 2008-06-25 | 中国兵器工业第五二研究所 | Regeneration treatment and cyclic utilization method of printing and dyeing wastewater |
| CN102040289A (en) * | 2009-10-19 | 2011-05-04 | 福建凤竹纺织科技股份有限公司 | Method and equipment for regenerating and recycling textile dyeing wastewater |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60114395A (en) * | 1983-11-26 | 1985-06-20 | Sanki Kansetsu Center:Kk | Decoloring method of miscellaneous building waste water containing night soil |
| CN201351130Y (en) * | 2008-12-29 | 2009-11-25 | 广州唯普电力科技有限公司 | Dechlorination device for water treatment |
| CN101708063B (en) * | 2009-12-23 | 2012-06-27 | 湖南中烟工业有限责任公司 | Method for concentrating extraction liquid in production of tobacco sheet by papermaking process |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827535A (en) * | 2005-03-01 | 2006-09-06 | 三达膜科技（厦门）有限公司 | Dye waste water treatment method based on membrane technology |
| CN101205105A (en) * | 2007-12-18 | 2008-06-25 | 中国兵器工业第五二研究所 | Regeneration treatment and cyclic utilization method of printing and dyeing wastewater |
| CN102040289A (en) * | 2009-10-19 | 2011-05-04 | 福建凤竹纺织科技股份有限公司 | Method and equipment for regenerating and recycling textile dyeing wastewater |
Non-Patent Citations (3)
| Title |
|---|
| JP昭60-114395A 1985.06.20 * |
| 分散染料溶液的聚砜超滤膜分离;郭明远等;《纺织基础科学学报》;19930630;第6卷(第2期);第120-122页 * |
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