CN1760143A - Method for treating dyeing wastewater through coagulated gas float deposition, and one-piece type handling arrangement - Google Patents
Method for treating dyeing wastewater through coagulated gas float deposition, and one-piece type handling arrangement Download PDFInfo
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- CN1760143A CN1760143A CN 200410035995 CN200410035995A CN1760143A CN 1760143 A CN1760143 A CN 1760143A CN 200410035995 CN200410035995 CN 200410035995 CN 200410035995 A CN200410035995 A CN 200410035995A CN 1760143 A CN1760143 A CN 1760143A
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Abstract
A coagulation-air floating-deposition process for treating the dyeing-printing sewage includes such steps as biologic treating, mixing with composite chemical, coagulating reaction for decoloring, mixing with air dissolved water, air floating, solid-water separation for removing the most of color substance and suspended substance, and depositing for removing the rest of color substance and suspended substance. Its integrated apparatus has a treating pool composed of coagulating reaction region, air floating region and depositing region.
Description
Technical field
The present invention relates to a kind of method of treatment of dyeing and printing, and a kind of with coagulation, air supporting, the concentrated integral type treatment unit that carries out of precipitation.
Background technology
In China, the contaminated wastewater of dyeing and finishing industry occupies larger proportion in industrial wastewater pollution, and dyeing waste water concentration height, quantity discharged are big, effectively handle to have certain difficulty.At present, domestic dyeing waste water is generally adopted adjusting-acidication-bio-contact oxidation-materialization combination treatment method.Wherein, materilization freatment method mainly adopts the air supporting facture, and the air supporting facture generally comprises technological processs such as coagulating, air supporting.Coagulating mainly adopts inorganic coagulants such as molysite, aluminium salt, and its decolorizing effect instability is particularly undesirable to the water-soluble dye such as matching stain, reactive dyestuffs and the useless decolorizing effect of the micromolecular substantive dyestuff of part that are difficult for the formation colloidal particle.More employing flat flow air flotation pool is handled in air supporting, be characterized in that operational management is more convenient, but having partly in actual applications, flco is dissolved in the water outlet again, removal effect to suspended substance is not ideal, therefore, in order to improve the removal effect of dyeing waste water colourity and suspended substance, often after handling, air supporting carries out biological carbon processing or active carbon filtration processing etc. again, though its treatment effect is better, exists and take up an area of shortcoming big, that investment is high, working cost is high.
Summary of the invention
The objective of the invention is the deficiency that exists in the present dyeing waste water air supporting treatment technology, a kind of method of treatment of dyeing and printing is provided, to solve colourity and the concentration of suspension problem of higher that back water is handled in air supporting.
Another object of the present invention provides a kind of with coagulation, air supporting, the concentrated integral type treatment unit that carries out of precipitation, to reduce floor space, to reduce investment and working cost.
Treatment method of printing and dying wastewater provided by the invention is characterized in that: comprise
(1) coagulation: the waste water after will carrying out a biological disposal upon mixes through eddy flow in the coagulating district with combination medicament, carries out the coagulating decolouring under the flow condition that is fit to;
(2) air supporting: the waste water behind the coagulating is mixed at the air supporting treatment zone with dissolved air water, carries out solid water and separate, remove most colored substance and and suspended substance;
(3) precipitation: the waste water after the air supporting processing is sent into the precipitation process district,, remove remaining colored substance and suspended substance, the dirt of water after handling and post precipitation is discharged through settler.
Described combination medicament comprises Tai-Ace S 150, high-efficiency decolorant, polyacrylamide, and its dosage is respectively Tai-Ace S 150 200mg/L, high-efficiency decolorant 25mg/L, polyacrylamide 10mg/L.
Integral type printing and dyeing wastewater processing equipment provided by the invention, it is characterized in that: comprise treating pond, treating pond is separated into coagulating district, air supporting treatment zone, the precipitation process district of order connection successively in the plane, the coagulating district is communicated with water inlet pipe, coagulating is provided with hydrocyclone in the district, be provided with settler, bottom connection dirt vent pipe at the top in precipitation process district connection rising pipe, middle part, the water-in in precipitation process district is positioned at the settler below.
Described settler comprises one group of inclined paralled plates of arranged spaced.
Treatment method of printing and dying wastewater provided by the invention adopts unique combination medicament and sloping plate deposition technology, and it is limpid that it handles the back water outlet, and water quality is good, is better than the first discharge standard of GB4287-92 textile dyeing and finishing industrial water pollution thing.Integral type treatment unit provided by the invention concentrates on coagulating district, air supporting treatment zone, precipitation process district in the treating pond, has advantages such as floor space is little, reduced investment, working cost is low, operational management is convenient.
Description of drawings
Fig. 1 is the plane figure synoptic diagram of dyeing waste water integral type treatment unit.
Fig. 2 is the sectional view along A-A direction among Fig. 1.
Embodiment
Treatment method of printing and dying wastewater provided by the invention belongs to materilization freatment method, is used to handle the dyeing waste water after biological process is handled.This treatment process comprises following technical process:
(1) coagulation: the waste water after will carrying out a biological disposal upon mixes through eddy flow in the coagulating district with combination medicament, under the flow condition that is fit to, carry out the coagulating decolouring, combination medicament comprises Tai-Ace S 150, high-efficiency decolorant, polyacrylamide, and its dosage is respectively Tai-Ace S 150 200mg/L, high-efficiency decolorant 25mg/L, polyacrylamide 10mg/L;
(2) air supporting: the waste water behind the coagulating is mixed at the air supporting treatment zone with dissolved air water, carries out solid water and separate, remove most colored substance and and suspended substance;
(3) precipitation: the waste water after air supporting handled is sent into the precipitation process district, through settler, remove remaining colored substance and and suspended substance, the dirt of water after handling and post precipitation is discharged.
As shown in Figure 1, the invention provides a kind of integral type treatment unit that is used for above-mentioned treatment process, be characterized in coagulation, air supporting, precipitation concentrated in the device and carry out, have advantages such as floor space is little, reduced investment, working cost is low, operational management is convenient.Its main body is a treating pond, and for treatment capacity 4500 ton per days, its planar dimension is 13.8m * 10m, and available depth is 2m-3.8m, and waste water residence time in device is 2h.Treating pond is separated into coagulating district I, air supporting treatment zone II, the precipitation process district III of order connection successively in the plane.Now details are as follows with the 26S Proteasome Structure and Function of this device each several part:
(1) coagulating district I is separated into six sub-districts that are communicated with successively by the overcurrent wall 1 that five roads have perforation, and first sub-district reaction of coagulating district I is communicated with water inlet pipe 11, is provided with the swirler 12 by hydro powered in this district.
Waste water after biological process is handled enters first sub-district of coagulating district I by water inlet pipe 11, adds described combination medicament, carries out coagulation decoloration through the eddy flow hybrid reaction, and mixed solution flows through six sub-districts successively, guarantees that sufficient reacting carries out.Waste water residence time in whole coagulating district I is 0.5h, and flow rate of water flow is 0.3m/s.
(2) air supporting treatment zone II comprises the molten gas area 2 and the flat flow air flotation pool 21 of connection, and the 6th sub-district of coagulating district I is communicated with molten gas area 2.Be provided with mud scraper 22 in the air flotation pool 21, be used for removing the settling in pond.The bottom, water side of air flotation pool 21 is provided with header 23, and header 23 tube walls have flowing hole, and an end of header 23 extends to precipitation process district III and is communicated with water distributing pipe 3.
Enter molten gas area 2 with the waste water of combination medicament thorough mixing reaction from the 6th sub-district of coagulating district I, molten gas area 2 forms dissolved air water by the mode of injecting dissolve gas, waste water enters air flotation pool 21 with dissolved air water, residence time 1h, the realization solid water is separated, and removes most colored substance and suspended substance.
(3) bottom of precipitation process district III is provided with the water distributing pipe 3 that is communicated with header 23, has distributing hole 31 on the tube wall of water distributing pipe 3.Be provided with inclined plate sedimentation device at precipitation process district III middle part, inclined plate sedimentation device comprises one group of inclined paralled plates 32 of arranged spaced.The top of precipitation process district III is provided with water leg 33, and the top, water side of settling region is provided with rising pipe 34, and rising pipe 34 is communicated with water leg 33, and dirt vent pipe 35 is set below water distributing pipe 3.As shown in Figure 2, total virtual height of precipitation process district III is 3.57m, and wherein clear water zone III-1 is that 0.87m, water distributing area III-2 highly highly are 0.6m for 1.1m, mud district III-3 for 1m, swash plate layer height highly.Swash plate length is 1000mm, and the spacing between swash plate is 50mm, and the mounting inclination angle degree is 60 °, and the settling tank surface load is 7m/h.
Enter the water distributing pipe 3 of precipitation process district III bottom by the header 23 of bottom, air flotation pool 21 water sides through the air supporting processed waste water, distributing hole 31 by water distributing pipe 3 enters water distributing area III-2, waste water is during by the gap 321 between swash plate, because the precipitating action of swash plate 32, remaining colored substance and suspended substance are precipitated into mud district III-3 in the waste water.Water through post precipitation enters clear water zone III-1, discharges by water leg 33, rising pipe 34, discharges by dirt vent pipe 35 and be deposited on mud district III-3 dirt.Thus, the remaining colored substance in back, suspended substance are handled in air supporting, can further remove through the precipitation process district, guarantee effluent quality.
Treatment method of printing and dying wastewater provided by the invention and integral type treatment unit thereof have been applied to Fujian Fengzhu Textile Technology Stocks Co., Ltd..Use 2 cover integral type treatment unit altogether, every cover processing power is 4500 ton per days, and treatment effect is good, sees following table for details:
Claims (4)
1, dyeing waste water coagulation air-float precipitation treatment method is characterized in that: comprise
(1) coagulation: the waste water after will carrying out a biological disposal upon mixes through eddy flow in the coagulating district with combination medicament, carries out the coagulating decolouring under the flow condition that is fit to;
(2) air supporting: the waste water behind the coagulating is mixed at the air supporting treatment zone with dissolved air water, carries out solid water and separate, remove most colored substance and and suspended substance;
(3) precipitation: the waste water after the air supporting processing is sent into the precipitation process district,, remove remaining colored substance and suspended substance, the dirt of water after handling and post precipitation is discharged through settler.
2, dyeing waste water coagulation air-float precipitation treatment method according to claim 1, it is characterized in that: described combination medicament comprises Tai-Ace S 150, high-efficiency decolorant, polyacrylamide, and its dosage is respectively Tai-Ace S 150 200mg/L, high-efficiency decolorant 25mg/L, polyacrylamide 10mg/L.
3, dyeing waste water coagulation air-float precipitation integral type treatment unit, it is characterized in that: comprise treating pond, treating pond is separated into coagulating district, air supporting treatment zone, the precipitation process district of order connection successively in the plane, the coagulating district is communicated with water inlet pipe, coagulating is provided with hydrocyclone in the district, be provided with settler, bottom connection dirt vent pipe at the top in precipitation process district connection rising pipe, middle part, the water-in in precipitation process district is positioned at the settler below.
4, dyeing waste water coagulation air-float precipitation integral type treatment unit according to claim 3, it is characterized in that: described settler comprises one group of inclined paralled plates of arranged spaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410035995 CN1760143A (en) | 2004-10-15 | 2004-10-15 | Method for treating dyeing wastewater through coagulated gas float deposition, and one-piece type handling arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410035995 CN1760143A (en) | 2004-10-15 | 2004-10-15 | Method for treating dyeing wastewater through coagulated gas float deposition, and one-piece type handling arrangement |
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| CN1760143A true CN1760143A (en) | 2006-04-19 |
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| CN 200410035995 Pending CN1760143A (en) | 2004-10-15 | 2004-10-15 | Method for treating dyeing wastewater through coagulated gas float deposition, and one-piece type handling arrangement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811786A (en) * | 2010-05-10 | 2010-08-25 | 苏州市普滤得净化有限公司 | Device and process for producing drinking water |
| CN102786165A (en) * | 2011-05-20 | 2012-11-21 | 上海丰信环保科技有限公司 | Method for treating alkali printing and dyeing waste water |
| CN107098499A (en) * | 2017-05-08 | 2017-08-29 | 湖南美奕机电科技有限公司 | One kind backflow coagulating sedimentation air supporting all-in-one |
| CN107777805A (en) * | 2016-08-30 | 2018-03-09 | 宜兴市锦桢铸造材料有限公司 | Cutting fluid waste water process retracting device |
-
2004
- 2004-10-15 CN CN 200410035995 patent/CN1760143A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811786A (en) * | 2010-05-10 | 2010-08-25 | 苏州市普滤得净化有限公司 | Device and process for producing drinking water |
| CN102786165A (en) * | 2011-05-20 | 2012-11-21 | 上海丰信环保科技有限公司 | Method for treating alkali printing and dyeing waste water |
| CN107777805A (en) * | 2016-08-30 | 2018-03-09 | 宜兴市锦桢铸造材料有限公司 | Cutting fluid waste water process retracting device |
| CN107098499A (en) * | 2017-05-08 | 2017-08-29 | 湖南美奕机电科技有限公司 | One kind backflow coagulating sedimentation air supporting all-in-one |
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