CN108164060A - A kind of printing and dyeing secondary settlement waste water treatment process - Google Patents
A kind of printing and dyeing secondary settlement waste water treatment process Download PDFInfo
- Publication number
- CN108164060A CN108164060A CN201810095669.1A CN201810095669A CN108164060A CN 108164060 A CN108164060 A CN 108164060A CN 201810095669 A CN201810095669 A CN 201810095669A CN 108164060 A CN108164060 A CN 108164060A
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- China
- Prior art keywords
- waste water
- printing
- treatment process
- water treatment
- dyeing
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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
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
A kind of waste water treatment process, belongs to industrial waste water treatment, relates generally to a kind of printing and dyeing secondary settlement waste water treatment process；The present invention in order to solve the problems, such as redox reaction in electrochemical wastewater processing processing speed is low and the reclamation rate of waste water is low；The present invention includes the following steps：Step 1, electrochemical treatments：By organic matter under the action of direct current, redox reaction is carried out；Step 2, filtration treatment：By treated, waste water is filtered respectively by a filtering technique and secondary filter technique；Step 3, refined filtration processing：By clear liquid by refined filtration technique refined filtration, three processes of recycle-water are obtained after refined filtration；Treated that waste water water colour is transparent for method processed by the invention, and reclamation rate is high, and processing cost is low, and social benefit is good, and effects of energy saving and emission reduction is apparent.Using this method during treated water through producer's experiment of printing and dyeing, can be back in production completely.
Description
Technical field
A kind of sedimentation waste water treatment process belongs to industrial waste water treatment, relates generally to a kind of printing and dyeing secondary settlement
Waste water treatment process.
Background technology
Dyeing waste water discharge capacity is big, and complicated component, intractability is big, is field of waste water treatment issues that need special attention.By
In needed for production technology, dyeing waste water often contains there are many slurry, auxiliary agent, dyestuff, surfactant and soda acid etc., and organic matter contains
Amount is high, waste water yellowish, and the requirement of recycle-water is not achieved.
With the fast development of electrode material, the mode of Applied Electrochemistry to printing and dyeing secondary settlement waste water be processed into order to
The mainstream of water process at present.Applied Electrochemistry redox reaction mode handles waste water, and pollution is small, the degree of automation
Height, but how to enhance redox reaction processing speed and improve waste water reclamation rate become electrochemical treatment of wastewater
Bottleneck.
Invention content
To solve the above-mentioned problems, the present invention discloses a kind of printing and dyeing secondary settlement waste water treatment process, by adjusting negative and positive
Pole plate plate electrode and cathode-anode plate pole span accelerate redox reaction speed, and the in-depth filtration by way of flowing back and feeding back, and carry
The reclamation rate of high waste water.
The object of the present invention is achieved like this：
A kind of printing and dyeing secondary settlement waste water treatment process, includes the following steps：
Step 1, electrochemical treatments：By secondary settlement waste water by electrochemical process, by organic matter direct current effect
Under, carry out redox reaction.
Further, printing and dyeing secondary settlement waste water treatment process is a kind of side that difficulty is larger in electrochemical treatment of wastewater
Formula is carried out at normal temperatures using electrochemical treatments dyeing waste water, the electro-catalysis that occurs in electrode process, Electro Sorb, electric flocculation,
Etc. waste water treatment efficiency can be greatly improved, and pass through and change current density and processing time and turn the water quality of the water outlet after reaction
It is excellent.
Further, the technical essential of this method is：Under the action of external voltage, using soluble anode, generate big
Cation (such as Fe of amount2+、Al3+Deng), precipitation is condensed to waste water, and along with air supporting in electric flocculation.Referred to as electricity wadding
Solidifying/electric floating/co-precipitation.
Further, electrolyte is added in secondary settlement waste water described in step 1, the electrolyte is NaCl, NaClO,
Na2SO4、K2SO4One or more of.
Further, the content of the electrolyte is 0.5~1g/L.
Further, the electrochemical process course of work is described in step 1：Pole plate in a cell is passed through certain voltage
Direct current, allow waste water by when, the anion of the electrolyte in waste water shifts to anode, and lose electronics and by oxygen in anode
Change.Cation shifts to cathode, and obtains electronics in cathode and be reduced.
Its electrode reaction is as follows：
Anode reaction：Fe3++e-→Fe2+ 2H2O-4e-→O2+4H+
Cathode reaction：O2+2H+→H2O2 2H++2e-→H2
Further, the pole plate includes sequentially connected anode plate, First Transition pole plate, the second transition pole plate and cathode
Plate.
Further, the anode plate, First Transition pole plate, the second transition pole plate box cathode plate thickness ratio be 14:11:
11:5。
Preferably, the thickness of the anode plate, First Transition plate, the second rebound and cathode plate be followed successively by 7mm, 5.5mm,
5.5mm、2.5mm。
Preferably, the electrochemical treatments time according to the contents of goods and materials of printing and dyeing in waste water how much, processing time for 10~
20 minutes.
Further, in terms of 1000L waste water, the initial current 8000A of the electrochemical treatments, after ten minutes 6000A.
Preferably, the anode, catholyte current density be 8mA/dm2。
Further, the consumption of electrode of the electrochemical treatments is 0.01~0.10m2/ day.
Further, the electrochemical parameter of the electrochemical treatments such as following table：
| Voltage | Current strength | Pole span |
| 12V | 300~600A/8~10dm2 | 30~50mm |
| 24V | 200~400A/4~6dm2 | 50~60mm |
| 36V | 50~200A/2~3dm2 | 80~200mm |
Step 2, filtration treatment：The processed waste water of step 1 is passed through into a filtering technique and secondary filter technique point
It does not filter, by the suspended matter in primary filtering and secondary filter by back purge system, press filtration is in mud cake, the dirty solution after filtering
It returns to filter process described in secondary settling tank's step 2 and includes a sequentially connected filtering technique and secondary filter technique.
Step 3, refined filtration processing：By the clear liquid in step 2 by refined filtration technique refined filtration, recycle-water is obtained after refined filtration.
Refined filtration processing includes the hole of filter device and ultrafiltration apparatus, the filter device and ultrafiltration apparatus described in step 3
Diameter ratio is 5:1.
Preferably, the aperture of the filter device is 0.5 μm, and the aperture of ultrafiltration apparatus is 0.1um.
Further, the water outlet SS of the refined filtration process is 0.1 μm.
Compared with prior art, the present invention it has the advantages that：The present invention's is rational in infrastructure, uses the side of electrochemistry
Formula handles a kind of printing and dyeing secondary settlement waste water, and treatment effect is good, method processed by the invention treated waste water water colour
Transparent, reclamation rate is high, and processing cost is low, and reclamation rate is high, and social benefit is good, and effects of energy saving and emission reduction is apparent, it is easy to accomplish.
Description of the drawings
Fig. 1 is overview flow chart of the present invention.
Specific embodiment
A kind of printing and dyeing secondary settlement waste water treatment process, includes the following steps：
Step 1, electrochemical treatments：By secondary settlement waste water by electrochemical process, by organic matter direct current effect
Under, carry out redox reaction.
Electrolyte is added in secondary settlement waste water described in step 1, the electrolyte is NaCl, NaClO, Na2SO4、
K2SO4One or more of.
The content of electrolyte is 0.5~1g/L.
The electrochemical process course of work is described in step 1：Pole plate in a cell is passed through the direct current of certain voltage,
Allow waste water by when, the anion of the electrolyte in waste water shifts to anode, and lose electronics in anode and aoxidized.Cation moves
To cathode, and obtain electronics in cathode and be reduced.
Pole plate includes sequentially connected anode plate, First Transition pole plate, the second transition pole plate and cathode plate.
Anode plate, First Transition pole plate, the second transition pole plate box cathode plate thickness ratio be 14:11:11:5.
Anode plate, First Transition plate, the second rebound and cathode plate thickness be followed successively by 7mm, 5.5mm, 5.5mm,
2.5mm。
Step 2, filtration treatment：The processed waste water of step 1 is passed through into a filtering technique and secondary filter technique point
It does not filter, by the suspended matter in primary filtering and secondary filter by back purge system, press filtration is in mud cake, the dirty solution after filtering
Return to secondary settling tank.
Filter process described in step 2 includes a sequentially connected filtering technique and secondary filter technique.
Step 3, refined filtration processing：By the clear liquid in step 2 by refined filtration technique refined filtration, recycle-water is obtained after refined filtration.
Refined filtration processing includes the hole of filter device and ultrafiltration apparatus, the filter device and ultrafiltration apparatus described in step 3
Diameter ratio is 5:1.
The printing and dyeing water of secondary precipitation is originally in yellowish-brown, and treated, and waste water water colour is transparent, and percent of decolourization reaches more than 95%.
Water quality that treated can reach discharge standard：COD≤200mg/L, SS≤50mg/L, coloration≤80.
Through producer's experiment of printing and dyeing, middle water has reached reuse requirement.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art
See.Therefore, the scope of the present invention should not be determined with reference to foregoing description, but should with reference to preceding claims and this
The four corner of equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special
The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims
Any aspect is not intended to abandon the body matter, also should not be considered as applicant the theme is not thought of as it is disclosed
Apply for a part for theme.
Those listed above it is a series of be described in detail only for the application feasibility embodiment specifically
Bright, they are not limiting the protection domain of the application, all equivalent implementations made without departing from the application skill spirit
Or change should be included within the protection domain of the application.
Claims (8)
1. a kind of printing and dyeing secondary settlement waste water treatment process, it is characterised in that：Include the following steps：
Step 1, electrochemical treatments：By secondary settlement waste water by electrochemical process, by organic matter under the action of direct current,
Carry out redox reaction；
Step 2, filtration treatment：The processed waste water of step 1 is passed through into a filtering technique and secondary filter technique mistake respectively
Filter, by the suspended matter in primary filtering and secondary filter by back purge system, press filtration is in mud cake, and the dirty solution after filtering returns
Secondary settling tank；
Step 3, refined filtration processing：By the clear liquid in step 2 by refined filtration technique refined filtration, recycle-water is obtained after refined filtration.
2. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 1, it is characterised in that：Two described in step 1
Electrolyte is added in secondary sedimentation waste water, the electrolyte is NaCl, NaClO, Na2SO4、K2SO4One or more of.
3. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 2, it is characterised in that：The electrolyte
Content is 0.5~1g/L.
4. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 1, it is characterised in that：It is electric described in step 1
The chemical technology course of work is：Pole plate in a cell is passed through the direct current of certain voltage, allow waste water by when, in waste water
The anion of electrolyte shifts to anode, and loses electronics in anode and aoxidized.Cation shifts to cathode, and obtains electricity in cathode
Son and be reduced.
5. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 4, it is characterised in that：The pole plate includes
Sequentially connected anode plate, First Transition pole plate, the second transition pole plate and cathode plate.
6. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 5, it is characterised in that：The anode plate,
First Transition pole plate, the second transition pole plate box cathode plate thickness ratio be 14:11:11:5.
7. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 1, it is characterised in that：Mistake described in step 2
It filters processing procedure and includes a sequentially connected filtering technique and secondary filter technique.
8. a kind of printing and dyeing secondary settlement waste water treatment process according to claim 1, it is characterised in that：It is smart described in step 3
Filter, which is handled, includes filter device and ultrafiltration apparatus, and the aperture ratio of the filter device and ultrafiltration apparatus is 5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095669.1A CN108164060A (en) | 2018-01-31 | 2018-01-31 | A kind of printing and dyeing secondary settlement waste water treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810095669.1A CN108164060A (en) | 2018-01-31 | 2018-01-31 | A kind of printing and dyeing secondary settlement waste water treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN108164060A true CN108164060A (en) | 2018-06-15 |
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ID=62512346
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810095669.1A Pending CN108164060A (en) | 2018-01-31 | 2018-01-31 | A kind of printing and dyeing secondary settlement waste water treatment process |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353088A (en) * | 2000-11-09 | 2002-06-12 | 福建师范大学 | Electrochemical process for treating waste dye liquid |
| CN101823820A (en) * | 2010-04-06 | 2010-09-08 | 张凯茵 | Method and device for assisting in hydrolyzing and sterilizing sludge by press filter with electric motive force |
| CN101985372A (en) * | 2010-08-30 | 2011-03-16 | 蒋亚熙 | Electrolytic equipment for sewage treatment by EFT |
| CN104926033A (en) * | 2015-06-11 | 2015-09-23 | 常熟新锦江印染有限公司 | Efficient treatment method for printing and dyeing wastewater |
| CN205528273U (en) * | 2016-01-29 | 2016-08-31 | 杭州萧索环保科技有限公司 | Printing and dyeing wastewater treatment system |
| CN106315977A (en) * | 2016-09-09 | 2017-01-11 | 华纺股份有限公司 | Printing and dyeing wastewater treatment technique |
| CN107352757A (en) * | 2017-09-05 | 2017-11-17 | 云南今业生态建设集团有限公司 | A kind of microelectrolysis processing technique of dyeing waste water |
-
2018
- 2018-01-31 CN CN201810095669.1A patent/CN108164060A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1353088A (en) * | 2000-11-09 | 2002-06-12 | 福建师范大学 | Electrochemical process for treating waste dye liquid |
| CN101823820A (en) * | 2010-04-06 | 2010-09-08 | 张凯茵 | Method and device for assisting in hydrolyzing and sterilizing sludge by press filter with electric motive force |
| CN101985372A (en) * | 2010-08-30 | 2011-03-16 | 蒋亚熙 | Electrolytic equipment for sewage treatment by EFT |
| CN104926033A (en) * | 2015-06-11 | 2015-09-23 | 常熟新锦江印染有限公司 | Efficient treatment method for printing and dyeing wastewater |
| CN205528273U (en) * | 2016-01-29 | 2016-08-31 | 杭州萧索环保科技有限公司 | Printing and dyeing wastewater treatment system |
| CN106315977A (en) * | 2016-09-09 | 2017-01-11 | 华纺股份有限公司 | Printing and dyeing wastewater treatment technique |
| CN107352757A (en) * | 2017-09-05 | 2017-11-17 | 云南今业生态建设集团有限公司 | A kind of microelectrolysis processing technique of dyeing waste water |
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Application publication date: 20180615 |