CN106045105A - Dyeing wastewater treatment technique - Google Patents
Dyeing wastewater treatment technique Download PDFInfo
- Publication number
- CN106045105A CN106045105A CN201610482569.5A CN201610482569A CN106045105A CN 106045105 A CN106045105 A CN 106045105A CN 201610482569 A CN201610482569 A CN 201610482569A CN 106045105 A CN106045105 A CN 106045105A
- Authority
- CN
- China
- Prior art keywords
- waste water
- dyeing
- printing
- filtrate
- dyeing waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/06—Pressure conditions
- C02F2301/066—Overpressure, high pressure
Abstract
The invention discloses a dye printing boiling and desizing wastewater treatment technique which comprises the following steps: regulating the pH value of dyeing wastewater to be treated to 6-7, adding a ferrous salt to perform coagulative precipitation, and sufficiently reacting to obtain a first filtrate and a first precipitate; and carrying out pressure floatation treatment on the first filtrate, wherein the treated liquid can flow into the comprehensive wastewater regulating tank. According to the dyeing wastewater treatment technique, the ferrous salt is added into the dyeing wastewater with the pH value of 6-7, the insoluble COD (chemical oxygen demand) in the dyeing wastewater precipitates after coagulative precipitation, and the subsequent pressure floatation treatment is performed to perform the Fenton oxidation function, thereby breaking the long-chain reducible organic matters in the dyeing wastewater and forming the short-chain small-molecule reducible organic matters. The dyeing wastewater treatment technique can perform treatment on dyeing wastewater generated by the desizing and boiling steps, so that the treated liquid can flow into the comprehensive wastewater regulating tank.
Description
Technical field
The present invention relates to field of waste water treatment, especially relate to a kind of printing-dyeing waste water treatment process.
Background technology
Textile and dyeing industry is from the beginning of embryo cloth, first desizing, mashing off, bleaching, mercerising, dyeing, stamp, washing, finally leads to
Crossing arranging process and become finished product, the waste water in each operation is referred to as dyeing waste water.
Bleaching, mercerising, dyeing, stamp, to wash the dyeing waste water water yield that these operations produce big, but has COD
(Chemical Oxygen Demand, COD) is low, (Biochemical Oxygen Demand, biochemistry is aerobic for BOD
Amount) low feature.Traditional printing-dyeing waste water treatment process, chemically decolours, and enters at common biochemistry the most again
Reason.But, the dyeing waste water that desizing and boiling-off the two operation produce, have colourless, basicity is high, COD is high, water temperature is high, the water yield
The feature such as little, if the waste water that the two operation produces flows directly into comprehensive wastewater regulating reservoir, can cause discharge to be difficult to up to standard.Cause
This, the dyeing waste water that desizing and two operations of boiling-off produce needs special handling.
Summary of the invention
Based on this, it is necessary to provide the print that a kind of dyeing waste water produced for desizing and two operations of boiling-off carries out processing
Dye waste water treatment process.
A kind of printing and dyeing boiled-off waste water processes technique, comprises the steps:
The pH regulating pending printing and dyeing boiled-off waste water is 6～7, adds divalent iron salt and carries out coagulating sedimentation, fully reacts
After obtain the first filtrate and first precipitation, wherein, the addition of described divalent iron salt is 400ppm～600ppm；And
Described first filtrate is carried out pressure floatation air process, and the treatment fluid after having processed can flow into comprehensive wastewater regulation
Pond, wherein, the condition that described pressure floatation air processes is hydraulic surface loading 4m3/m2～5m .h3/m2.h。
In one embodiment, described dyeing waste water is desizing and the dyeing waste water of two operations generations of boiling-off.
In one embodiment, first pH is adjusted to be 6～7 by described regulation is pending printing and dyeing boiling-off and desized wastewater
Operation is: the pH using concentrated sulphuric acid to regulate pending described dyeing waste water is 6～7.
In one embodiment, described divalent iron salt is ferrous sulfate.
In one embodiment, described addition divalent iron salt carries out in the operation of coagulating sedimentation, adding of described divalent iron salt
Entering amount is 500ppm.
In one embodiment, in the described operation that described first filtrate is carried out pressure floatation air process, described in add and calm the anger
The floating condition processed is hydraulic surface loading 4.3m3/m2.h。
In one embodiment, described described first filtrate is carried out pressure floatation air process operation be: use box adding
Pressure air floatation machine carries out pressure floatation air process to described first filtrate.
This printing-dyeing waste water treatment process is by adding divalent iron salt, after coagulating sedimentation in the dyeing waste water that pH is 6～7
In dyeing waste water, insoluble COD precipitation, coordinates follow-up pressure floatation air to process, it is possible to play the effect of Fenton oxidation, thus
Long-chain reductive organic matter in dyeing waste water is interrupted, forms short chain little molecule reductive organic matter, this dyeing waste water
Processing technique to process for the dyeing waste water that desizing and two operations of boiling-off produce, the treatment fluid after having processed is i.e.
Comprehensive wastewater regulating reservoir can be flowed into.
Accompanying drawing explanation
Fig. 1 is the flow chart of the printing-dyeing waste water treatment process of an embodiment.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, real with concrete below in conjunction with the accompanying drawings
Execute example the detailed description of the invention of the present invention is described in detail.Elaborate a lot of detail in the following description so that
Fully understand the present invention.But the present invention can implement to be much different from alternate manner described here, art technology
Personnel can do similar improvement in the case of intension of the present invention, and therefore the present invention is not embodied as by following public
Restriction.
The printing-dyeing waste water treatment process of an embodiment as shown in Figure 1, comprises the steps:
S10, the pH regulating pending dyeing waste water are 6～7, add divalent iron salt and carry out coagulating sedimentation, fully react
After obtain the first filtrate and first precipitation.
In present embodiment, dyeing waste water is desizing and the dyeing waste water of two operations generations of boiling-off.Desizing and boiling-off this
The dyeing waste water that two operations produce, has the features such as colourless, basicity is high, COD is high, water temperature is high, the water yield is little, it is therefore desirable to pass through
Special handling, it is impossible to flow directly into comprehensive wastewater regulating reservoir and process.
The operation that pH is 6～7 regulating pending dyeing waste water is: use the described printing and dyeing that concentrated sulphuric acid regulation is pending
The pH of waste water is 6～7.
Divalent iron salt can be ferrous sulfate.
In the dyeing waste water that pH is 6～7, add divalent iron salt, the insoluble COD in dyeing waste water can be made the most heavy
Get off in shallow lake.
The addition of divalent iron salt is 400ppm～600ppm.By divalent iron salt, to the clearance of COD in dyeing waste water
General at least more than 30%, height is then between 50%～60%.
Preferably, the addition of divalent iron salt is 500ppm.
The operation of coagulating sedimentation can use sedimentation tank to complete.
Sedimentation tank can be that inclined tube-type sedimentation tank (control upflow velocity less than 1m/h) or rectangular sedimentation tank are (in control
Rise flow velocity less than 0.8m/h).
S20, the first filtrate obtaining S10 carry out pressure floatation air process, and the treatment fluid after having processed can flow into comprehensive
Close wastewater equalization pond.
The condition that pressure floatation air processes is hydraulic surface loading 4m3/m2～5m .h3/m2.h.Preferably, pressure floatation air processes
Condition be hydraulic surface loading 4.3m3/m2.h。
In S20, the operation that the first filtrate carries out pressure floatation air process is: use box pressure floatation air machine to the first filtrate
Carry out pressure floatation air process.
The feature of box pressure floatation air machine is divided into upper and lower two-layer, and lower floor is corrugated plating and baffle combination reaction and filters
Part, upper strata is air supporting and clarification part.First filtrate through water pump hybrid reaction flocculate after, approach contact chamber, enter gas
Floating process, primary water, by perforation collector pipe connection water channel, the treatment fluid after process flows into composite wastewater regulating reservoir.
Box pressure floatation air machine can process various waste water, and during process, water temperature can be properly functioning less than 80 DEG C.
The divalent iron salt added is in acid medium and under enough Oxidation, when stopping due to box pressure floatation air machine
Between long, moreover it is possible to play Fenton oxidation effect, thus the long-chain reductive organic matter in dyeing waste water be interrupted, formed short chain little
Molecule reductive organic matter.
Pressure floatation air processes the clearance to COD more than 20%.
By above-mentioned technological process, although the clearance of COD is not up to 90%, but in dyeing waste water, long-chain reproducibility is organic
Thing molecule is interrupted, and forms short chain little molecule reductive organic matter, easily decomposes after entering subsequent biochemical system.
This printing-dyeing waste water treatment process is by adding divalent iron salt, after coagulating sedimentation in the dyeing waste water that pH is 6～7
In dyeing waste water, insoluble COD precipitation, coordinates follow-up pressure floatation air to process, it is possible to play the effect of Fenton oxidation, thus
Long-chain reductive organic matter in dyeing waste water is interrupted, forms short chain little molecule reductive organic matter, this dyeing waste water
Processing technique to process for the dyeing waste water that desizing and two operations of boiling-off produce, the treatment fluid after having processed is i.e.
Comprehensive wastewater regulating reservoir can be flowed into.
Being below specific embodiment, the various instruments occurred in embodiment and reagent if not otherwise specified, all use
This area conventional instrument or reagent.
In embodiment, pending dyeing waste water is the desizing of multiple textile printing and dyeing factory and the printing and dyeing of two operations generations of boiling-off
Waste water, box pressure floatation air machine is purchased from certain company (model is HQF).
Embodiment 1
Being adjusted processing to pH value to pending dyeing waste water with concentrated sulphuric acid in regulating reservoir is 6.5, is subsequently added into
Ferrous sulfate, controlling upflow velocity is that 0.8m/h obtains the first filtrate and first in inclined tube-type sedimentation tank after coagulating kinetics
Filtering residue.Wherein, the addition of ferrous sulfate is 500ppm.
Using box pressure floatation air machine that the first filtrate is carried out pressure floatation air process, the condition of process is hydraulic surface loading
4.3m3/m2.h, the treatment fluid after having processed can flow into comprehensive wastewater regulating reservoir.
Embodiment 2
Being adjusted processing to pH value to pending dyeing waste water with concentrated sulphuric acid in regulating reservoir is 6, is subsequently added into sulfur
Acid is ferrous, and controlling upflow velocity is that 0.9m/h obtains the first filtrate and the first filter in inclined tube-type sedimentation tank after coagulating kinetics
Slag.Wherein, the addition of ferrous sulfate is 400ppm.
Using box pressure floatation air machine that the first filtrate is carried out pressure floatation air process, the condition of process is hydraulic surface loading
4m3/m2.h, the treatment fluid after having processed can flow into comprehensive wastewater regulating reservoir.
Embodiment 3
Being adjusted processing to pH value to pending dyeing waste water with concentrated sulphuric acid in regulating reservoir is 6.5, is subsequently added into
Ferrous sulfate, controlling upflow velocity is that 1m/h obtains the first filtrate and the first filter in inclined tube-type sedimentation tank after coagulating kinetics
Slag.Wherein, the addition of ferrous sulfate is 600ppm.
Using box pressure floatation air machine that the first filtrate is carried out pressure floatation air process, the condition of process is hydraulic surface loading
4.3m3/m2.h, time, the treatment fluid after having processed can flow into comprehensive wastewater regulating reservoir.
Embodiment 4
Being adjusted processing to pH value to pending dyeing waste water with concentrated sulphuric acid in regulating reservoir is 6, is subsequently added into chlorine
Changing ferrous iron, controlling upflow velocity is that 0.9m/h obtains the first filtrate and the first filter in inclined tube-type sedimentation tank after coagulating kinetics
Slag.Wherein, the addition of ferrous sulfate is 400ppm.
Using box pressure floatation air machine that the first filtrate is carried out pressure floatation air process, the condition of process is hydraulic surface loading
5m3/m2.h, the treatment fluid after having processed can flow into comprehensive wastewater regulating reservoir.
Dyeing waste water in embodiment 1～4 and treatment fluid are detected, obtains result as shown in table 1 below.
Table 1: chemical oxygen demand after COD and air supporting before the air supporting in dyeing waste water and treatment fluid in embodiment 1～4
The testing result of amount.
As can be seen from Table 1, the chemical precipitation method in dyeing waste water and air supporting can effectively be gone by embodiment 1～4
Removing, the long-chain reductive organic matter in dyeing waste water is interrupted, and forms short chain little molecule reductive organic matter, the treatment fluid obtained
Easily decompose after entering subsequent biochemical system.
Need exist for it is emphasized that to the chemical oxygen content in dyeing waste water with pneumatically supported comprehensively go in embodiment 3
Except rate is the highest.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (7)
1. a printing and dyeing boiled-off waste water processes technique, it is characterised in that comprise the steps:
The pH regulating pending printing and dyeing boiled-off waste water is 6～7, adds divalent iron salt and carries out coagulating sedimentation, fully obtains after reaction
To the first filtrate and the first precipitation, wherein, the addition of described divalent iron salt is 400ppm～600ppm；And
Described first filtrate is carried out pressure floatation air process, and the treatment fluid after having processed can flow into comprehensive wastewater regulating reservoir,
Wherein, the condition that described pressure floatation air processes is hydraulic surface loading 4m3/m2～5m .h3/m2.h。
2. printing-dyeing waste water treatment process as claimed in claim 1, it is characterised in that described dyeing waste water is desizing and boiling-off two
The dyeing waste water that individual operation produces.
3. printing-dyeing waste water treatment process as claimed in claim 1, it is characterised in that printing and dyeing boiling-off that described regulation is pending and
Desized wastewater first pH is adjusted to be 6～7 operation be: the pH using the concentrated sulphuric acid pending described dyeing waste water of regulation is 6
～7.
4. printing and dyeing boiled-off waste water as claimed in claim 1 processes technique, it is characterised in that described divalent iron salt is that sulphuric acid is sub-
Ferrum.
5. the printing and dyeing boiled-off waste water as described in claim 1 or 4 processes technique, it is characterised in that described addition divalent iron salt enters
In the operation of row coagulating sedimentation, the addition of described divalent iron salt is 500ppm.
6. printing-dyeing waste water treatment process as claimed in claim 1, it is characterised in that described described first filtrate is pressurizeed
In the operation of air-flotation process, the condition that described pressure floatation air processes is hydraulic surface loading 4.3m3/m2.h。
7. the printing-dyeing waste water treatment process as described in claim 1 or 6, it is characterised in that described described first filtrate is carried out
The operation that pressure floatation air processes is: use box pressure floatation air machine that described first filtrate is carried out pressure floatation air process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482569.5A CN106045105A (en) | 2016-06-27 | 2016-06-27 | Dyeing wastewater treatment technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610482569.5A CN106045105A (en) | 2016-06-27 | 2016-06-27 | Dyeing wastewater treatment technique |
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| CN106045105A true CN106045105A (en) | 2016-10-26 |
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| CN201610482569.5A Pending CN106045105A (en) | 2016-06-27 | 2016-06-27 | Dyeing wastewater treatment technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365392A (en) * | 2016-11-17 | 2017-02-01 | 无锡市长安曙光手套厂 | Printing and dyeing wastewater treatment process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165993A (en) * | 1992-08-27 | 1994-06-14 | Shikoku Chem Corp | Decoloring chemical for waste water of dye and dyeing industry and dyeing method therefor |
| CN1276348A (en) * | 2000-05-16 | 2000-12-13 | 宋子奎 | Process for treating waste water from fabrics dyeing |
| CN1556052A (en) * | 2003-12-31 | 2004-12-22 | 马晓鸥 | Treatment technology of emulsion contained spent water |
| CN1803639A (en) * | 2006-01-22 | 2006-07-19 | 徐浩昌 | Industrial waste water treatment method |
| CN101177330A (en) * | 2007-08-10 | 2008-05-14 | 南京大学 | Method for preprocessing coking wastewater by electrochemical oxidation flocculating composite technique |
| CN101955303A (en) * | 2010-09-29 | 2011-01-26 | 邹海明 | Treatment method of dye wastewater |
| CN102976536A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Method for treating dyeing waste water of disperse reactive dyes |
| CN204529363U (en) * | 2015-03-12 | 2015-08-05 | 辽宁华孚环境工程股份有限公司 | A kind of high loading air flotation device of pressure air-dissolved of non-overflow water outlet |
| CN104926039A (en) * | 2015-06-19 | 2015-09-23 | 王桂霞 | Method for treating printing and dyeing wastewater |
-
2016
- 2016-06-27 CN CN201610482569.5A patent/CN106045105A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06165993A (en) * | 1992-08-27 | 1994-06-14 | Shikoku Chem Corp | Decoloring chemical for waste water of dye and dyeing industry and dyeing method therefor |
| CN1276348A (en) * | 2000-05-16 | 2000-12-13 | 宋子奎 | Process for treating waste water from fabrics dyeing |
| CN1556052A (en) * | 2003-12-31 | 2004-12-22 | 马晓鸥 | Treatment technology of emulsion contained spent water |
| CN1803639A (en) * | 2006-01-22 | 2006-07-19 | 徐浩昌 | Industrial waste water treatment method |
| CN101177330A (en) * | 2007-08-10 | 2008-05-14 | 南京大学 | Method for preprocessing coking wastewater by electrochemical oxidation flocculating composite technique |
| CN101955303A (en) * | 2010-09-29 | 2011-01-26 | 邹海明 | Treatment method of dye wastewater |
| CN102976536A (en) * | 2012-12-11 | 2013-03-20 | 常州大学 | Method for treating dyeing waste water of disperse reactive dyes |
| CN204529363U (en) * | 2015-03-12 | 2015-08-05 | 辽宁华孚环境工程股份有限公司 | A kind of high loading air flotation device of pressure air-dissolved of non-overflow water outlet |
| CN104926039A (en) * | 2015-06-19 | 2015-09-23 | 王桂霞 | Method for treating printing and dyeing wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365392A (en) * | 2016-11-17 | 2017-02-01 | 无锡市长安曙光手套厂 | Printing and dyeing wastewater treatment process |
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Application publication date: 20161026 |