CN103936195A - Multi-phase joint catalytic oxidation printing and dyeing wastewater deep treatment device and treatment method - Google Patents
Multi-phase joint catalytic oxidation printing and dyeing wastewater deep treatment device and treatment method Download PDFInfo
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- CN103936195A CN103936195A CN201410134073.XA CN201410134073A CN103936195A CN 103936195 A CN103936195 A CN 103936195A CN 201410134073 A CN201410134073 A CN 201410134073A CN 103936195 A CN103936195 A CN 103936195A
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- catalytic oxidation
- heterogeneous
- activated coke
- dye wastewater
- ozone reactor
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Abstract
The invention relates to a multi-phase joint catalytic oxidation printing and dyeing wastewater deep treatment device and treatment method. The treatment device comprises an active coke catalytic oxidation pond, an ozone reactor and a composite sand filtering pond, wherein the active coke catalytic oxidation pond, the ozone reactor and the composite sand filtering pond are sequentially connected; an active coke filler layer is arranged in the active coke catalytic oxidation pond; and a quartz sand layer, an activated carbon layer and an iron slag layer are filled in the composite sand filtering pond from top to bottom. The multi-phase joint catalytic oxidation printing and dyeing wastewater deep treatment device and treatment method of the invention combine the advantages of a variety of advanced oxidation, adsorption and filtration, printing and dyeing wastewater treated by the device can effectively degrade chroma and CODcr (chemical oxygen demand in dichromate number), outlet water can continuously achieve a first-level B standard in a national GB18918-2002 standard, and the treatment device and the treatment method have the advantages of low treatment cost, simplicity in operation, easiness in control and the like.
Description
Technical field
The present invention relates to a kind of wastewater treatment equipment and treatment process, be specifically related to a kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus and treatment process, belong to dyeing wastewater processing technology field.
Background technology
The features such as dyeing waste water has complicated component, auxiliary agent, tensio-active agent, fiber impurity, colourity is dark, biodegradability is poor, the technique of mainly taking both at home and abroad is now the biological treatment of simple Physical+routine.Simple Physical refers to takes simple coagulation-settlement process.Conventional biological treatment refers to takes activated sludge process or simple common bacterial classification to process sewage.These methods have feasibility for simple sewage and more wide in range standard.
Yet, along with the development of dyestuffs industries and the progress of dyeing and printing process technology, the intractability of dyeing waste water increases greatly, and these traditional technologys can meet the processing of the single dyeing waste water of each point source substantially, but is difficult to process the integrated printing and dyeing waste water of complicated large-scale maximum discharge standard.And along with the development of dyeing and finishing technique, PVA slurry, New-type adjuvant, the organism of the difficult for biological degradation such as new dye enters in dyeing waste water in a large number, make more than the COD value of dyeing waste water is sharply increased to 2000mg/L, make traditional treatment process be difficult to meet processing requirements, country improves constantly the waste water standard that printing and dyeing enterprise is included pipe network in simultaneously, the dyeing waste water major part that sewage work is received is the sewage of processing through point source, there is salinity high, the features such as biological toxicity is large, and the waste water of sewage work is that many printing and dyeing enterprise waste water are comprehensive, composition is more complicated.Country to the background of printing and dyeing enterprise reuse project " carry mark upgrading " under, reuse and the emission standard of waste water improve constantly, and not only require to remove in dyeing waste water organism but also require decolorizing effect good.These all make original technique be unable to cope with day by day complicated sewage, cannot meet the emission standard requirement of increasingly stringent.
Therefore,, for solving the problems of the technologies described above, necessary heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus and the treatment process that a kind of advanced person is provided, to overcome described defect of the prior art.
Summary of the invention
For solving the problems of the technologies described above, the first object of the present invention is to provide a kind of processing cost low, and ozone utilization rate is high, and can effectively realize organism (COD
cr) and the efficient heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of removing of colourity.
The second object of the present invention is to provide a kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method.
For realizing above-mentioned the first object, the technical scheme that the present invention takes is: a kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus, and it comprises activated coke catalyzed oxidation pond, ozone reactor and complex sand filter tank; Wherein, described activated coke catalyzed oxidation pond, ozone reactor are connected successively with complex sand filter tank; Described activated coke catalyzed oxidation is provided with activated coke packing layer in pond; In described complex sand filter tank, be filled with quartz sand layer, active carbon layer and scum layer from top to bottom.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention is further set to: the upper part in the described activated coke catalyzed oxidation pond structure that is square, the V-shaped structure in bottom; The bottom of described v-shaped structure is provided with a water inlet pipe, and the top of water inlet pipe is provided with one first aeration plate; Described activated coke packing layer is positioned at square structure, and it is held by one first waffle slab.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention is further set to: described activated coke catalyzed oxidation pond is welded by the thick carbon steel sheet of 4mm; The thickness of described activated coke packing layer is 0.7m.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention is further set to: in described ozone reactor, be provided with ejector, this ejector is positioned at ozone reactor bottom; In this ozone reactor, be provided with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH is the catalyst layer of complex metal compound.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention is also set to: the quartz sand layer in described complex sand filter tank, active carbon layer and scum layer are held by one second waffle slab; This complex sand filter tank is also provided with the second aeration plate.
For realizing above-mentioned the second object, the technical scheme that the present invention takes is: a kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method, it comprises following processing step: 1), dyeing waste water is adjusted to PH to 3 with sulfuric acid, add H simultaneously
2o
2; 2), dyeing waste water is disposed to activated coke catalyzed oxidation pond; 3), afterwards waste water is entered to ozone reactor; 4), the water outlet of ozone reactor enters the processing of complex sand filter tank.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method of the present invention is further: in step 1), and H
2o
2concentration be 30%, dosage is that 0.3ml/L(is with respect to dyeing waste water amount).
Heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method of the present invention is further: step 2), dyeing waste water is 2 hours in the activated coke catalyzed oxidation pond residence time.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method of the present invention is further: in step 3), waste water is 15min in the ozone reactor residence time; In ozone reactor, be fixed with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH complex metal compound catalyzer, catalyst levels is 100g/L, ozone dosage is 40mg/L.
Heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method of the present invention also can be: in step 4), waste water is 20min in the residence time in complex sand filter tank.
Compared with prior art, the present invention has following beneficial effect:
1. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention had increased by a step catalytic oxidation process before ozone reactor, used catalyst is activated coke, oxygenant is hydrogen peroxide, catalyzer and oxygenant are simple and easy to get, through catalysis, the macromolecule organic in waste water can be decomposed into small organic molecule or directly be degraded into CO
2and H
2o, for the processing of a rear step catalytic ozonation has alleviated pressure, greatly reduces the dosage of ozone, has improved the utilization ratio of ozone simultaneously.
2. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention may be also with a certain amount of hydrogen peroxide in the water outlet in activated coke catalyzed oxidation pond, a certain amount of hydrogen peroxide can promote the oxidation of ozone, hydrogen peroxide has played the effect of homogeneous catalyst, increase the amount that catalysis ozone produces hydroxyl radical free radical, hydrogen peroxide and ozone cooperative are removed water pollutant, improved ozone utilization rate, simultaneously, in ozone reactor, also contain through screening, many metal composite metal oxide solid catalyzer of development, in ozone reactor, formed gas, liquid, Gu heterogeneous catalytic oxidation, reduced cost, promoted effluent quality.
3. the matrix material filter tank of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention comprises quartz sand, gac and Iron-ore Slag, and particle diameter, between 2-3mm, can accelerate to destroy the ozone of the solubilised state in effluent quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention.
Embodiment
Refer to shown in Figure of description 1, the present invention is a kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus, it is comprised of several parts such as activated coke catalyzed oxidation pond 1, ozone reactor 2 and complex sand filter tanks 3, and this activated coke catalyzed oxidation pond 1, ozone reactor 2 are connected successively with complex sand filter tank 3.
Wherein, in described activated coke catalyzed oxidation pond 1, be provided with activated coke packing layer 4, its thickness is 0.7m, and it can be decomposed into the macromolecule organic in waste water small organic molecule or directly be degraded into CO
2and H
2o, for the processing of a rear step catalytic ozonation has alleviated pressure, greatly reduce the dosage of ozone, improved the utilization ratio of ozone simultaneously, simultaneously, it has catalysis, has greatly brought into play contact and function between activated coke, hydrogen peroxide and ozone three, thereby improves the impact resistance of system.
This activated coke catalyzed oxidation pond 1 is welded by the thick carbon steel sheet of 4mm, its upper part structure that is square, the V-shaped structure in bottom.The bottom of described v-shaped structure is provided with a water inlet pipe 5, and the top of water inlet pipe 5 is provided with one first aeration plate 6, thereby can carry out aeration to dyeing waste water.Described activated coke packing layer 4 is positioned at square structure, and it is held by one first waffle slab 7.
The dyeing waste water of processing through activated coke catalyzed oxidation pond 1 enters ozone reactor 2.In this ozone reactor 2, be provided with ejector 8, this ejector 8 is positioned at ozone reactor 2 bottoms, adopts mode of jet to add ozone, has greatly improved the utilization ratio of ozone.In this ozone reactor 2, be also provided with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH is the catalyst layer 9 of complex metal compound.
The dyeing waste water of processing through ozone reactor 2 enters complex sand filter tank 3.In described complex sand filter tank 3, be filled with quartz sand layer 10, active carbon layer 11 and scum layer 12 from top to bottom, and the particle diameter of quartz sand layer 10, active carbon layer 11 and scum layer 12 is between 2-3mm, it is held by one second waffle slab 13, and it can accelerate to destroy the ozone of the solubilised state in effluent quality.This complex sand filter tank 3 is also provided with the second aeration plate 14.
Adopt the treatment process of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus of the present invention as follows:
1), dyeing waste water is adjusted to PH to 3 with sulfuric acid, add H simultaneously
2o
2(concentration is 30%), dosage is that 0.3ml/L(is with respect to dyeing waste water amount);
2), dyeing waste water is disposed to activated coke catalyzed oxidation pond 1, and is 2 hours in 1 residence time of activated coke catalyzed oxidation pond;
3), afterwards waste water is entered to ozone reactor 2,2 residence time of ozone reactor are 15min; Wherein, in ozone reactor 2, be fixed with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH complex metal compound catalyzer, catalyst levels is 100g/L, ozone dosage is 40mg/L;
4), the water outlet of ozone reactor 2 enters complex sand filter tank 4 and processes, and in the residence time in complex sand filter tank 4, is 20min.
Dyeing waste water waste water enters before 1 processing of activated coke catalyzed oxidation pond, and its water-quality guideline is as follows: COD
cr: 120mg/L, 50 times of colourities.
After process in activated coke catalyzed oxidation pond 1, water-quality guideline is as follows: COD
cr: 90 mg/L; 35 times of colourities.
After ozone reactor 2 is processed, water-quality guideline is as follows: COD
cr: 48mg/L, 10 times of colourities.
Behind complex sand filter tank 4, water-quality guideline is as follows: COD
cr: 40 mg/L, 5 times of colourities.
Above embodiment is only the preferred embodiment of this creation, not in order to limit this creation, any modification of making, is equal to replacement, improvement etc., within all should being included in the protection domain of this creation within all spirit in this creation and principle.
Claims (10)
1. a heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus, is characterized in that: comprise activated coke catalyzed oxidation pond, ozone reactor and complex sand filter tank; Wherein, described activated coke catalyzed oxidation pond, ozone reactor are connected successively with complex sand filter tank; Described activated coke catalyzed oxidation is provided with activated coke packing layer in pond; In described complex sand filter tank, be filled with quartz sand layer, active carbon layer and scum layer from top to bottom.
2. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus as claimed in claim 1, is characterized in that: the upper part in the described activated coke catalyzed oxidation pond structure that is square, the V-shaped structure in bottom; The bottom of described v-shaped structure is provided with a water inlet pipe, and the top of water inlet pipe is provided with one first aeration plate; Described activated coke packing layer is positioned at square structure, and it is held by one first waffle slab.
3. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus as claimed in claim 2, is characterized in that: described activated coke catalyzed oxidation pond is welded by the thick carbon steel sheet of 4mm; The thickness of described activated coke packing layer is 0.7m.
4. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus as claimed in claim 1, is characterized in that: in described ozone reactor, be provided with ejector, this ejector is positioned at ozone reactor bottom; In this ozone reactor, be provided with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH is the catalyst layer of complex metal compound.
5. heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus as claimed in claim 1, is characterized in that: the quartz sand layer in described complex sand filter tank, active carbon layer and scum layer are held by one second waffle slab; This complex sand filter tank is also provided with the second aeration plate.
6. a heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method, is characterized in that: comprise following processing step:
1), dyeing waste water is adjusted to PH to 3 with sulfuric acid, add H simultaneously
2o
2;
2), dyeing waste water is disposed to activated coke catalyzed oxidation pond;
3), afterwards waste water is entered to ozone reactor;
4), the water outlet of ozone reactor enters the processing of complex sand filter tank.
7. heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method as claimed in claim 6, is characterized in that: in step 1), and H
2o
2concentration be 30%, dosage is that 0.3ml/L(is with respect to dyeing waste water amount).
8. heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method as claimed in claim 6, is characterized in that: step 2) in, dyeing waste water is 2 hours in the activated coke catalyzed oxidation pond residence time.
9. heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method as claimed in claim 6, is characterized in that: in step 3), waste water is 15min in the ozone reactor residence time; In ozone reactor, be fixed with Fe
2o
3-Fe
3o
4-FeS
2-FeOOH complex metal compound catalyzer, catalyst levels is 100g/L, ozone dosage is 40mg/L.
10. heterogeneous associating Catalytic Oxidation of Dye Wastewater deep treatment method as claimed in claim 6, is characterized in that: in step 4), waste water is 20min in the residence time in complex sand filter tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134073.XA CN103936195B (en) | 2014-04-04 | 2014-04-04 | A kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus and treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134073.XA CN103936195B (en) | 2014-04-04 | 2014-04-04 | A kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus and treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN103936195A true CN103936195A (en) | 2014-07-23 |
| CN103936195B CN103936195B (en) | 2016-03-16 |
Family
ID=51184119
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|---|---|---|---|
| CN201410134073.XA Expired - Fee Related CN103936195B (en) | 2014-04-04 | 2014-04-04 | A kind of heterogeneous associating Catalytic Oxidation of Dye Wastewater advanced treatment apparatus and treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556556A (en) * | 2014-12-03 | 2015-04-29 | 东华大学 | Method for deep treatment of printing and dyeing chemical comprehensive wastewater |
| CN105692868A (en) * | 2016-04-19 | 2016-06-22 | 江苏壹叁伍环保科技有限公司 | Process and system for sewage treatment and riverway restoration |
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| KR20120111049A (en) * | 2011-03-31 | 2012-10-10 | 서명포 | Recycling treament method of wastewater by using the slag |
| CN103043857A (en) * | 2012-12-19 | 2013-04-17 | 绍兴县江滨水处理有限公司 | Method and device for treating printing and dyeing wastewater by using macroporous adsorption resin |
| CN103145299A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学 | Advanced treatment method for Lurgi coal gasification wastewater |
| CN103663782A (en) * | 2013-11-29 | 2014-03-26 | 山西新科联环境技术有限公司 | Treatment method and equipment for cationic dye wastewater |
| CN203820567U (en) * | 2014-04-04 | 2014-09-10 | 绍兴柯桥江滨水处理有限公司 | Device for deep treatment of printing and dyeing wastewater by multi-phase combined catalytic oxidation |
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2014
- 2014-04-04 CN CN201410134073.XA patent/CN103936195B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120111049A (en) * | 2011-03-31 | 2012-10-10 | 서명포 | Recycling treament method of wastewater by using the slag |
| CN103043857A (en) * | 2012-12-19 | 2013-04-17 | 绍兴县江滨水处理有限公司 | Method and device for treating printing and dyeing wastewater by using macroporous adsorption resin |
| CN103145299A (en) * | 2013-03-26 | 2013-06-12 | 哈尔滨工业大学 | Advanced treatment method for Lurgi coal gasification wastewater |
| CN103663782A (en) * | 2013-11-29 | 2014-03-26 | 山西新科联环境技术有限公司 | Treatment method and equipment for cationic dye wastewater |
| CN203820567U (en) * | 2014-04-04 | 2014-09-10 | 绍兴柯桥江滨水处理有限公司 | Device for deep treatment of printing and dyeing wastewater by multi-phase combined catalytic oxidation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556556A (en) * | 2014-12-03 | 2015-04-29 | 东华大学 | Method for deep treatment of printing and dyeing chemical comprehensive wastewater |
| CN105692868A (en) * | 2016-04-19 | 2016-06-22 | 江苏壹叁伍环保科技有限公司 | Process and system for sewage treatment and riverway restoration |
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| Publication number | Publication date |
|---|---|
| CN103936195B (en) | 2016-03-16 |
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Granted publication date: 20160316 |