CN105836968A - Printing and dyeing wastewater treatment process - Google Patents
Printing and dyeing wastewater treatment process Download PDFInfo
- Publication number
- CN105836968A CN105836968A CN201610319969.4A CN201610319969A CN105836968A CN 105836968 A CN105836968 A CN 105836968A CN 201610319969 A CN201610319969 A CN 201610319969A CN 105836968 A CN105836968 A CN 105836968A
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- Prior art keywords
- waste water
- printing
- treatment process
- dyeing waste
- dyeing
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- 238000004043 dyeing Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 20
- 239000002351 wastewater Substances 0.000 claims abstract description 68
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 26
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 239000000701 coagulant Substances 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000011790 ferrous sulphate Substances 0.000 claims description 10
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 10
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 10
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 10
- 238000001556 precipitation Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 9
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 5
- 244000060011 Cocos nucifera Species 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 230000035484 reaction time Effects 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 7
- 238000006731 degradation reaction Methods 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 6
- 239000005416 organic matter Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000813 microbial effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 244000005700 microbiome Species 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000004155 Chlorine dioxide Substances 0.000 abstract description 2
- 235000019398 chlorine dioxide Nutrition 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000010802 sludge Substances 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 abstract 1
- NHYCGSASNAIGLD-UHFFFAOYSA-N Chlorine monoxide Chemical compound Cl[O] NHYCGSASNAIGLD-UHFFFAOYSA-N 0.000 description 5
- 239000000975 dye Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 229910001948 sodium oxide Inorganic materials 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229940023032 activated charcoal Drugs 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229920002955 Art silk Polymers 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000005904 alkaline hydrolysis reaction Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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
- C02F1/001—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
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a printing and dyeing wastewater treatment process. The biodegradability of wastewater can be improved by combining traditional chlorine dioxide treatment with an ozone oxidation and biological treatment technology and oxidizing difficultly-biodegradable large molecular organic matter in wastewater into easily-biodegradable small molecular organic matter, favorable conditions are created for microbial degradation of the organic matter in activated carbon columns, and meanwhile the adsorption load of active carbon is reduced. Ozone oxidation can increase dissolved oxygen in wastewater, favorable conditions are provided for life activities of aerobic microorganisms, and the printing and dyeing wastewater treatment process has the advantages of being high in microbial concentration, high in treatment efficiency, small in sludge output, stable in operation, simple in solid-liquid separation and the like, greatly reduces the treatment costs and has a huge market potential and a broad prospect.
Description
Technical field
The invention belongs to the production field of bearing, it is more particularly related to a kind of printing and dyeing
Waste water treatment process.
Background technology
Dyeing waste water is one of China's harmful, difficult industrial wastewater currently mainly, mainly dirty
Dye thing has dyestuff, slurry, auxiliary agent, fiber impurity, finish, soda acid and inorganic salts etc..Its
Feature is that wastewater flow rate is big, water quality is complicated, organic concentration is high, difficult for biological degradation, colourity are deep,
The features such as change of water quality is fast and irregular, the most especially pollution with dyestuff are the most serious.Its remaining
Even if dye component concentration the lowest, will also result in water body light transmittance reduce, cause ecological environment
Destruction.After the development of science fabric the most in recent years, the rise of Silk and printing and dyeing
The progress of finishing technique, makes PVA slurry, artificial silk alkaline hydrolysis class material, New-type adjuvant etc. be difficult to
The organic matter of biochemical degradation enters dyeing waste water in a large number, and its COD concentration is also by original hundreds of millis
Gram per liter rises to 2 000～3 000mg/L, so that original biological treatment system
COD clearance drops to about 50% from 70%.Traditional processing method type mainly has physics
Facture, method of chemical treatment and biological treatment etc..
Summary of the invention
Problem to be solved by this invention is to provide a kind of printing-dyeing waste water treatment process.
To achieve these goals, the technical scheme that the present invention takes is:
A kind of printing-dyeing waste water treatment process, comprises the steps:
(1) fine fack
By dyeing waste water by multilayer fine fack, remove fiber impurity, the sand class mixed in waste water
The solid sundries such as material；
(2) regulating reservoir
Dyeing waste water enters in regulating reservoir, is adjusted its water quality and the water yield, it is simple to follow-up place
Reason；
(3) reaction precipitation
Will regulation after waste water enter in reaction settling basin, and add coagulant to waste water at
Reason, described coagulant is 1.5:10 with the ratio of waste water, and removes precipitation；
(4) anaerobic hydrolysis
Being entered by waste water in PACT pond, the pH in described PACT pond is 7.0～8.0, temperature
Being 20～22 DEG C, useless treatment time of water is 15～20min；
(5)ClO2Catalytic oxidation
Waste water is entered ClO2In contact-oxidation pool, and make the ClO of dyeing waste water and 1.76%2
Ratio be 50:1, the reaction time is 20～25min, and reaction temperature is 23～25 DEG C；
(6) ozone contact tank
Again will be through ClO2It is smelly that the waste water of catalytic oxidation enters equipped with WH-G-2 type ozone generator
In oxygen contact chamber, and make addition ferrous sulfate make catalyst, ozone generation amount be 100～
120g/h, pH are 6.9～7.1, and oxidization time is 40～50min；
Preferably, the pH of waste water is adjusted to by described step (2) sulfuric acid and NaOH
7.2～7.4.
Preferably, described step (3) coagulant is the mixing of ferric trichloride, ferric sulfate and PAC
Thing.
Preferably, in described step (3), the amount ratio of ferric trichloride, ferric sulfate and PAC is
5:6:3。
Preferably, ferric trichloride, ferric sulfate and the concentration of PAC described in described step (3)
It is 10～14g/L.
Preferably, described step (6) be provided with bottom ozone contact tank cocoanut active charcoal 500～
600kg, and be uniformly distributed at the bottom of pond.
Preferably, in the ozone contact tank of described step (6) concentration of ferrous sulfate be 100～
120mg/L。
Beneficial effect: the invention discloses a kind of printing-dyeing waste water treatment process, by traditional two
Chlorine monoxid processes combined with ozone oxidation and biologic treating technique, by by difficult for biological degradation in waste water
Larger molecular organics be oxidized to the small organic molecule of easily biological-degradable, waste water can be improved
Biodegradability, creates favorable conditions for microbial degradation organic matter in activated-charcoal column, also subtracts simultaneously
The absorption load of light activated carbon；Ozone oxidation can increase the dissolved oxygen in waste water, for aerobic micro-life
The vital movement of thing provides favourable condition, and this technique has microorganism concn height, processes effect
Rate is high, sludge output is few, stable operation and the advantage such as separation of solid and liquid is simple, greatly reduces process
Cost, market potential is huge, has a extensive future.
Detailed description of the invention
Embodiment 1:
A kind of printing-dyeing waste water treatment process, comprises the steps:
(1) fine fack
By dyeing waste water by multilayer fine fack, remove fiber impurity, the sand class mixed in waste water
The solid sundries such as material；
(2) regulating reservoir
Dyeing waste water enters in regulating reservoir, is adjusted its water quality and the water yield, and sulfuric acid and hydrogen
The pH of waste water is adjusted to 7.2 by sodium oxide molybdena, it is simple to subsequent treatment；
(3) reaction precipitation
Will regulation after waste water enter in reaction settling basin, and add coagulant to waste water at
Reason, described coagulant is the mixture of ferric trichloride, ferric sulfate and PAC, and three's concentration is all
For 10g/L, amount ratio is 5:6:3, and described coagulant is 1.5:10 with the ratio of waste water, and
Remove precipitation；
(4) anaerobic hydrolysis
Being entered by waste water in PACT pond, the pH in described PACT pond is 7.0, and temperature is 20 DEG C,
Useless treatment time of water is 15min；
(5)ClO2Catalytic oxidation
Waste water is entered ClO2In contact-oxidation pool, and make the ClO of dyeing waste water and 1.76%2
Ratio be 50:1, the reaction time is 20min, and reaction temperature is 23 DEG C；
(6) ozone contact tank
Again will be through ClO2It is smelly that the waste water of catalytic oxidation enters equipped with WH-G-2 type ozone generator
In oxygen contact chamber, and make addition ferrous sulfate make catalyst, and make the concentration of ferrous sulfate be
100mg/L, ozone generation amount be 100g/h, pH be 6.9, oxidization time is 40min, institute
State and bottom ozone contact tank, be provided with cocoanut active charcoal 500kg, and be uniformly distributed at the bottom of pond.
Embodiment 2:
A kind of printing-dyeing waste water treatment process, comprises the steps:
(1) fine fack
By dyeing waste water by multilayer fine fack, remove fiber impurity, the sand class mixed in waste water
The solid sundries such as material；
(2) regulating reservoir
Dyeing waste water enters in regulating reservoir, is adjusted its water quality and the water yield, and sulfuric acid and hydrogen
The pH of waste water is adjusted to 7.3 by sodium oxide molybdena, it is simple to subsequent treatment；
(3) reaction precipitation
Will regulation after waste water enter in reaction settling basin, and add coagulant to waste water at
Reason, described coagulant is the mixture of ferric trichloride, ferric sulfate and PAC, and three's concentration is all
For 12g/L, amount ratio is 5:6:3, and described coagulant is 1.5:10 with the ratio of waste water, and
Remove precipitation；
(4) anaerobic hydrolysis
Being entered by waste water in PACT pond, the pH in described PACT pond is 7.5, and temperature is 21 DEG C,
Useless treatment time of water is 17.5min；
(5)ClO2Catalytic oxidation
Waste water is entered ClO2In contact-oxidation pool, and make the ClO of dyeing waste water and 1.76%2
Ratio be 50:1, the reaction time is 22.5min, and reaction temperature is 24 DEG C；
(6) ozone contact tank
Again will be through ClO2It is smelly that the waste water of catalytic oxidation enters equipped with WH-G-2 type ozone generator
In oxygen contact chamber, and make addition ferrous sulfate make catalyst, and make the concentration of ferrous sulfate be
110mg/L, ozone generation amount be 110g/h, pH be 7.0, oxidization time is 45min, institute
State and bottom ozone contact tank, be provided with cocoanut active charcoal 550kg, and be uniformly distributed at the bottom of pond.
Embodiment 3:
A kind of printing-dyeing waste water treatment process, comprises the steps:
(1) fine fack
By dyeing waste water by multilayer fine fack, remove fiber impurity, the sand class mixed in waste water
The solid sundries such as material；
(2) regulating reservoir
Dyeing waste water enters in regulating reservoir, is adjusted its water quality and the water yield, and sulfuric acid and hydrogen
The pH of waste water is adjusted to 7.4 by sodium oxide molybdena, it is simple to subsequent treatment；
(3) reaction precipitation
Will regulation after waste water enter in reaction settling basin, and add coagulant to waste water at
Reason, described coagulant is the mixture of ferric trichloride, ferric sulfate and PAC, and three's concentration is all
For 14g/L, amount ratio is 5:6:3, and described coagulant is 1.5:10 with the ratio of waste water, and
Remove precipitation；
(4) anaerobic hydrolysis
Being entered by waste water in PACT pond, the pH in described PACT pond is 8.0, and temperature is 22 DEG C,
Useless treatment time of water is 20min；
(5)ClO2Catalytic oxidation
Waste water is entered ClO2In contact-oxidation pool, and make the ClO of dyeing waste water and 1.76%2
Ratio be 50:1, the reaction time is 25min, and reaction temperature is 25 DEG C；
(6) ozone contact tank
Again will be through ClO2It is smelly that the waste water of catalytic oxidation enters equipped with WH-G-2 type ozone generator
In oxygen contact chamber, and make addition ferrous sulfate make catalyst, and make the concentration of ferrous sulfate be
120mg/L, ozone generation amount be 120g/h, pH be 7.1, oxidization time is 50min, institute
State and bottom ozone contact tank, be provided with cocoanut active charcoal 600kg, and be uniformly distributed at the bottom of pond.
After process above processes, taking out sample respectively, measurement result is as follows:
| Detection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Prior art index |
| Colourity | 9 | 8 | 8 | 10 |
| COD | 31 | 30 | 31 | |
| TP | 0.4 | 0.2 | 0.3 |
Can draw according to above table data, the dyeing waste water processed when embodiment 2 parameter
Chromaticity removing effect is good, can meet the row of " urban wastewater treatment firm discharge standard " 1 grade of A
Put standard, and the removal effect of COD and TP is also above prior art index, have wide
Market prospects.
The invention discloses a kind of printing-dyeing waste water treatment process, by traditional chlorine dioxide treatment
Combined with ozone oxidation and biologic treating technique, by having the big molecule of difficult for biological degradation in waste water
Machine thing is oxidized to the small organic molecule of easily biological-degradable, can improve the biodegradability of waste water,
Create favorable conditions for microbial degradation organic matter in activated-charcoal column, also alleviate activated carbon simultaneously
Absorption load；Ozone oxidation can increase the dissolved oxygen in waste water, and the life for aerobic microbiological is lived
Moving and provide favourable condition, this technique has microorganism concn height, treatment effeciency is high, produce mud
The advantages such as amount is less, stable operation and separation of solid and liquid be simple, greatly reduce processing cost, market
Have a high potential, have a extensive future.
The foregoing is only embodiments of the invention, not thereby limit the patent model of the present invention
Enclose, every equivalent structure utilizing description of the invention content to be made or equivalence flow process conversion, or
Directly or indirectly it is used in other relevant technical fields, is the most in like manner included in the patent of the present invention
In protection domain.
Claims (7)
1. a printing-dyeing waste water treatment process, it is characterised in that comprise the steps:
(1) fine fack
By dyeing waste water by solid sundries such as multilayer fine fack, the fiber impurity mixed in removal waste water, sand class materials；
(2) regulating reservoir
Dyeing waste water enters in regulating reservoir, is adjusted its water quality and the water yield, it is simple to subsequent treatment；
(3) reaction precipitation
Being entered in reaction settling basin by waste water after regulation, and add coagulant and process waste water, described coagulant is 1.5:10 with the ratio of waste water, and removes precipitation；
(4) anaerobic hydrolysis
Being entered by waste water in PACT pond, the pH in described PACT pond is 7.0～8.0, and temperature is 20～22 DEG C, and useless treatment time of water is 15～20min；
(5)ClO2Catalytic oxidation
Waste water is entered ClO2In contact-oxidation pool, and make the ClO of dyeing waste water and 1.76%2Ratio be 50:1, the reaction time is 20～25min, and reaction temperature is 23～25 DEG C；
(6) ozone contact tank
Again will be through ClO2The waste water of catalytic oxidation enters in the ozone contact tank equipped with WH-G-2 type ozone generator, and makes addition ferrous sulfate make catalyst, and ozone generation amount is 100～120g/h, and pH is 6.9～7.1, and oxidization time is 40～50min.
2. according to a kind of printing-dyeing waste water treatment process described in claim 1, it is characterised in that: the pH of waste water is adjusted to 7.2～7.4 by described step (2) sulfuric acid and NaOH.
3. according to a kind of printing-dyeing waste water treatment process described in claim 1, it is characterised in that: described step (3) coagulant is the mixture of ferric trichloride, ferric sulfate and PAC.
4. according to a kind of printing-dyeing waste water treatment process described in claim 3, it is characterised in that: in described step (3), the amount ratio of ferric trichloride, ferric sulfate and PAC is 5:6:3.
5. according to a kind of printing-dyeing waste water treatment process described in claim 1, it is characterised in that: described in described step (3), the concentration of ferric trichloride, ferric sulfate and PAC is 10～14g/L.
6. according to a kind of printing-dyeing waste water treatment process described in claim 1, it is characterised in that: described step (6) is provided with cocoanut active charcoal 500～600kg bottom ozone contact tank, and is uniformly distributed at the bottom of pond.
7. according to a kind of printing-dyeing waste water treatment process described in claim 1, it is characterised in that: in the ozone contact tank of described step (6), the concentration of ferrous sulfate is 100～120mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319969.4A CN105836968A (en) | 2016-05-12 | 2016-05-12 | Printing and dyeing wastewater treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319969.4A CN105836968A (en) | 2016-05-12 | 2016-05-12 | Printing and dyeing wastewater treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN105836968A true CN105836968A (en) | 2016-08-10 |
Family
ID=56592338
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|---|---|---|---|
| CN201610319969.4A Pending CN105836968A (en) | 2016-05-12 | 2016-05-12 | Printing and dyeing wastewater treatment process |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630396A (en) * | 2016-11-23 | 2017-05-10 | 武汉轻工大学 | Simple process for treating wastewater containing various dyes |
| CN107434332A (en) * | 2017-07-03 | 2017-12-05 | 安徽国能亿盛环保科技有限公司 | A kind of technique for treating industrial wastewater |
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