CN107200389B - A kind of dyeing waste water advanced treating integral process of oxidization time in seconds - Google Patents
A kind of dyeing waste water advanced treating integral process of oxidization time in seconds Download PDFInfo
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- CN107200389B CN107200389B CN201710505995.0A CN201710505995A CN107200389B CN 107200389 B CN107200389 B CN 107200389B CN 201710505995 A CN201710505995 A CN 201710505995A CN 107200389 B CN107200389 B CN 107200389B
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- 239000002351 wastewater Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000008569 process Effects 0.000 title claims abstract description 18
- 238000004043 dyeing Methods 0.000 title claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 39
- 238000004062 sedimentation Methods 0.000 claims abstract description 13
- 230000001112 coagulating effect Effects 0.000 claims abstract description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
- 239000011790 ferrous sulphate Substances 0.000 claims description 7
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
- 230000020477 pH reduction Effects 0.000 claims description 7
- -1 iron ion Chemical class 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 2
- 229910001882 dioxygen Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 10
- 238000002474 experimental method Methods 0.000 abstract description 6
- 239000003814 drug Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 3
- 239000012028 Fenton's reagent Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 238000001228 spectrum Methods 0.000 abstract 1
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 description 10
- 229960000907 methylthioninium chloride Drugs 0.000 description 10
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 9
- 230000003647 oxidation Effects 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000009303 advanced oxidation process reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000008394 flocculating agent Substances 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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- 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 present invention provides integrated Fenton reactors designed based on a kind of experiment by quick Fenton's reaction.The present invention passes through residence spectrum instrument first, has studied Fenton's reaction under the conditions of being sufficiently mixed to the degradation effect of part of fuel, and proposes the system to fast deep processing dyeing waste water bio-chemical effluent.The system is added into Fenton reagent in two stage treatment technique secondary clarifier effluent pipeline by pipe-line mixer, using the strong mixed effect of pipe-line mixer, mass transfer enhancement effect, to just realize in the duct Fenton medicament be sufficiently mixed and fully reacting.And lye is added in pipe end, pH is adjusted, and PAM is added, carries out coagulating sedimentation, then discharged.The advanced treatment system, the time needed for substantially reducing traditional Fenton processing waster water process, and also eliminate it is cumbersome add pond body, saved construction cost and operation cost.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of dyeing waste water depth of oxidization time in seconds
Manage integral process.
Background technique
Fenton's reaction is a kind of well-known advanced oxidation reaction, has also been had in the processing containing organic wastewater all
It applies more.Fe is mainly utilized in Fenton's reaction2+Ion in acid condition with H2O2Solution contact, it is a large amount of can to react generation
Reactive hydroxyl radical HO, and then oxygenolysis organic substance.Hydroxyl radical free radical has very high oxidation-reduction potential
(2.80eV), therefore can also have good removal effect for organic matters difficult to degrade some in water body.The principle of Fenton's reaction
Shown in following reaction equation:
Fe2++H2O2→HO·+Fe3++OH-
RH+HO·→H2O+R·
And Fe3+Ion can also regenerate ferrous ion by further reacting:
Fe3++H2O2→Fe-OOH2++H+
Fe-OOH2+→HO2·+Fe2+
By experimental studies have found that, Fenton's reaction can be completed to react in a short period of time in the case where being sufficiently mixed.
Using methylene blue as the quick Fenton's reaction of reaction substrate the experimental results showed that, in 30s or so Fenton's reaction to methylene blue
Removal effect be basically completed.Fenton advanced treating side of the experimental result to oxidization time proposed by the present invention in seconds
Method provides theoretical foundation.
Under the status that current dyeing standard of drainage is continuously improved, the draining of many sewage treatment plants has been unable to satisfy
New standard, thus mention mark transformation seem especially urgent.Fenton process is as advanced oxidation processes, to the high treating effect of organic matter,
Cost is cheap, and reagent does not have toxicity in use, and generates product and also do not have overt toxicity, therefore to waste water
Advanced treating technique in be popular.However traditional Fenton technology there is still a need for construction pond body carry out multi-step dosing and
Sludge is removed, new space and construction period are needed.
Summary of the invention
The purpose of the present invention is to provide a kind of dyeing waste water advanced treating integral process of oxidization time in seconds, originally
Invention devises that a kind of mass-transfer efficiency is high, and reaction speed is fast and the Fenton reactor of the oxidization time of high treating effect in seconds,
Cooperate coagulating sedimentation, the advanced treating applied to dyeing waste water.
The dyeing waste water advanced treatment process of the quick Fenton process of oxidization time of the invention in seconds is anti-with quick Fenton
Based on should testing, and influence of the mass transfer to reaction effect of having analyzed and researched quickly is mixed using water sprayer as dosing method
Pharmacy response and processing water body, adjust pH in water outlet and terminate reaction, neutralize water outlet, and add flocculant and carry out at coagulating sedimentation
Reason improves effluent quality.
A kind of dyeing waste water advanced treating integral process of oxidization time proposed by the present invention in seconds, specific steps are such as
Under:
(1) waste water to be processed is pumped into pipeline with pump first, controlling wastewater flow to be processed in pipeline is 1000-
3000m3/ h, to meet daily at least 20000 tons of sewage load；
(2) first water sprayer is accessed in pipeline front end, adds the Fe of the acidification prepared in advance2SO4Solution, control
Fe2SO4The pH value of solution is 0.5~1.5；After being sufficiently mixed, the pH value in waste water is controlled less than 4；First water sprayer is controlled to throw
HCl dropwise Fe2SO4The speed of solution is 1~5m3/ h, ferrous sulfate concentration is 400-800mg/L in waste water；
(3) in step (2), pipeline accesses second water sprayer again afterwards, and for adding hydrogen peroxide solution, control hydrogen peroxide is dense
Degree is 25%~50%, and it is 1~5m that second water sprayer, which adds dioxygen water speed,3/ h, it is ensured that hydrogen peroxide dosage be 100~
250mg/L adds 100%~200% that equivalent is COD, to ensure that effluent quality is up to standard；The quality of ferrous sulfate and hydrogen peroxide
It adds than for 4:1~8:1；
(4) enough duct lengths are provided afterwards in step (3), control duct length is 50~100m, allows water body in pipe
30~60s can be flowed in road, it is ensured that Fenton's reaction is abundant；
(5) in step (4), pipeline accesses third water sprayer afterwards, for adding sodium hydroxide solution, for terminating reaction,
And iron ion is promoted to play the role of coagulating sedimentation；Controlling concentration of sodium hydroxide solution is 20%~40%, and third water sprayer is thrown
Adding sodium hydroxide solution speed is 1~5m3/ h, water pH value is 7~9 after adding sodium hydroxide solution；
(6) PAM solution is added by the 4th water sprayer before step (5) afterwards pipe drainage mouth, PAM solution concentration is
8%~10%, the 4th water sprayer dispensing speed is 1~5m3/h；It is 3~7ppm that PAM, which adds rear concentration,.
In the present invention, the caliber DN of pipeline described in step (1) is 1000-2000mm.
In the present invention, described in step (2) control waste water in pH value less than 4, specially the pH value of water body be 2.5~
3.5。
The present invention have outstanding feature below and the utility model has the advantages that
(1) the novel Fenton reactor substantially reduces the time of Fenton's reaction processing dyeing waste water, and it is right to change tradition
With the application mode of Fenton's reaction.According to experimental result, in the case where pipeline mixes sufficient situation, Fenton's reaction can be complete in 30s
At.In Fenton medicament and under conditions of being sufficiently mixed of dyeing waste water, reaction can be basically completed in one minute.It does not need
Again as the reaction time in traditional handicraft using 20 to four ten minutes, hydraulic detention time is substantially reduced
(2) the novel Fenton reactor greatly reduces the land occupation face of traditional Fenton reactor in actual application
Product.In traditional Fenton reactor, multiple conditioning tanks and dosing pond are generally required；In this reactor, pass through pipeline dosing
Device, eliminates acidification pool, and dosing pond only need to arrange that processing can be completed in a coagulative precipitation tank, is conducive to simultaneously after water outlet
The mark that mentions for being completed waste water treatment plant is transformed.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
The dyeing waste water advanced treating integral process of oxidization time of the present invention in seconds, including feed liquor area, offer medicine area I,
Reaction zone, offer medicine area II, subsequent processing area.
By staying water by being pumped into pipeline, going out nearby in water inlet is dispensing area I, for adding Fenton examination
Agent.Ferrous iron solution is added first, then adds hydrogen peroxide solution, it is both acidified, to reach while adjust inlet flow-patterm
Effect.
Intermediate conduit is reaction zone.Duct length needs to guarantee that water body can flow 1-2min wherein to guarantee that reaction is filled
Point.
It is dispensing area II near water outlet, to adjust pH value and add flocculant.In design of the invention, first throw
Add lye, then adds PAM.
Water outlet connects sedimentation basin as subsequent processing, and reactor water outlet is the supernatant of sedimentation basin.
Fig. 2 is that hydrogen peroxide and ferrous iron add the relational graph for comparing the removal rate of methylene blue.
Fig. 3 is the relational graph of the removal rate of hydrogen peroxide dosage and methylene blue under identical ferrous dosage.
Fig. 4 is to keep adding than constant, the relational graph of the removal rate of the dosage and methylene blue of hydrogen peroxide.
Specific embodiment
The present invention is further illustrated below by embodiment.
Embodiment 1
Zhejiang treatment of dyeing wastewater factory uses: primary sedimentation tank+biochemistry+secondary settling tank+end Fenton (catalysis oxidation)/coagulation
Depositing technology, end-o f-pipe -control use pipeline doser, pipeline flow 200m3/h；Acidification has been firstly added in pipeline opening
Ferrous sulfate solution, pH 1, concentration are that dispensing speed is 5m3/ h, then adds hydrogen peroxide, concentration 30%, and dispensing speed is
3m3/ h, reaction section length is about 50m, and the reaction time is about 30s.The sodium hydroxide that concentration is 30% is added after reaction zone
Solution, adding speed is 3m3/h.The PAM that concentration is 8% is added in exit, carries out coagulating kinetics.Factory's secondary settling tank goes out
Water COD is 156 ± 3mg/L, and COD is discharged after present invention process end-o f-pipe -control can reach 68 ± 3mg/L, meets GB 4287-
2012 discharge standard.
Embodiment 2
Anhui Taihu Lake certain treatment of dyeing wastewater factory of bank uses: (the catalysis of primary sedimentation tank+oxidation ditch+secondary settling tank+end Fenton
Oxidation)/coagulation-settlement process, end-o f-pipe -control uses pipeline doser, and pipeline flow reaches 300m3/ h, pipeline opening first
It joined the ferrous sulfate solution of acidification, pH 1.5, concentration is that dispensing speed is 5m3/ h, then adds hydrogen peroxide, and concentration is
30%, adding concentration is 150mg/L, and reaction section length is about 100m, and the reaction time is about 50s.It is added after reaction zone dense
The sodium hydroxide solution that degree is 30%, adding speed is 3m3/h.The PAM that concentration is 8% is added in exit, it is heavy to carry out coagulation
Shallow lake processing.Factory secondary clarifier effluent COD is 182 ± 3mg/L, and COD is discharged after present invention process end-o f-pipe -control can reach 75
± 3mg/L meets the discharge standard of GB 4287-2012.
Embodiment 3
Guangdong treatment of dyeing wastewater factory uses: primary sedimentation tank+activated sludge process+secondary settling tank+end Fenton (catalysis oxygen
Change)/coagulation-settlement process, end-o f-pipe -control uses pipeline doser, and pipeline flow reaches 250m3/ h adds first in pipeline opening
The ferrous sulfate solution of acidification, pH 1 are entered, concentration is that dispensing speed is 3m3/ h, then adds hydrogen peroxide, concentration 50%,
Adding concentration is 150mg/L, and reaction section length is about 80m, and the reaction time is about 50s.Concentration is added after reaction zone is
40% sodium hydroxide solution, adding speed is 2.5m3/h.The PAM that concentration is 8% is added in exit, carries out coagulating sedimentation
Processing.Factory secondary clarifier effluent COD is 167 ± 3mg/L, be discharged after present invention process end-o f-pipe -control COD can reach 72 ±
3mg/L meets the discharge standard of GB 4287-2012.
Fig. 2, Fig. 3 and Fig. 4 are the experimental result picture about quick Fenton's reaction, using methylene blue as object, progress
Fenton experiment, experiment condition are as follows:
Measure the absorbance of methylene blue at 664nm respectively using UV detector.For the Fenton oxidation of the dyestuff
Experiment, initial pH is 2.0, and primary pollutant concentration is 10mg/L, and 20 DEG C of reaction temperature.Change 1) oxidant in experiment
H2O2Dosage；2) oxidant H2O2Compare with adding for catalyst Fe SO47H2O, 8 groups of experiments carried out to methylene blue,
It is as shown in table 1:
The quick Fenton oxidation of 1 dyestuff of table tests reaction condition
| Serial number | pH | H2O2Dosage (mg/L) | n(H2O2):n(Fe2+) |
| 1 | 2.0 | 36 | 2:1 |
| 2 | 2.0 | 36 | 1:1 |
| 3 | 2.0 | 36 | 1:2 |
| 4 | 2.0 | 36 | 1:4 |
| 5 | 2.0 | 72 | 2:1 |
| 6 | 2.0 | 144 | 4:1 |
| 7 | 2.0 | 72 | 1:1 |
| 8 | 2.0 | 144 | 1:1 |
According to the 1st, 2,3,4 group of experimental result, conclusion 1 can be obtained) it is obvious that as hydrogen peroxide and ferrous iron add ratio
Increase, the reaction rate of methylene blue is gradually speeded, and can reach reaction end faster.When adding than for 2:1 (A)
When, reaction is about completed in 20s or so, and when adding than reaching 1:1 or more (B, C, D), reaction is about completed in 10s or so.
Conclusion 2 can be obtained according to the 2nd, 5,6 group of experimental result) when keeping ferrous dosage constant, as hydrogen peroxide adds
The increase of amount, reaction rate are also speeded therewith.
According to the 2nd, 7,8 group of experimental result, conclusion 3 can be obtained) when keep add than it is constant when, with the dosage of hydrogen peroxide
Increase, reaction rate also speeds therewith, and when can improve reaction end methylene blue removal rate.
Iron ion (III) itself has coagulating sedimentation effect, the flocculants such as cooperation PAM under alkaline condition in Fenton reagent
Good coagulating sedimentation effect can be played, SS and COD in water can be effectively reduced, improve out water quality.
Claims (3)
1. a kind of dyeing waste water advanced treating integral process of oxidization time in seconds, it is characterised in that specific step is as follows:
(1) waste water to be processed is pumped into pipeline with pump first, controlling wastewater flow to be processed in pipeline is 1000-3000m3/ h,
To meet daily at least 20000 tons of sewage load；
(2) first water sprayer is accessed in pipeline front end, adds the Fe of the acidification prepared in advance2SO4Solution controls Fe2SO4Solution
PH value be 0.5 ~ 1.5；After being sufficiently mixed, the pH value in waste water is controlled less than 4；It controls first water sprayer and adds acidification
Fe2SO4The speed of solution is 1 ~ 5m3/ h, ferrous sulfate concentration is 400-800mg/L in waste water；
(3) in step (2), pipeline accesses second water sprayer again afterwards, and for adding hydrogen peroxide solution, control hydrogen peroxide concentration is
25% ~ 50%, it is 1 ~ 5m that second water sprayer, which adds dioxygen water speed,3/ h, it is ensured that hydrogen peroxide dosage is 100 ~ 250mg/L, is thrown
Sovolin amount is the 100% ~ 200% of COD, to ensure that effluent quality is up to standard；The quality of ferrous sulfate and hydrogen peroxide add than for 4:1 ~
8:1；
(4) enough duct lengths are provided afterwards in step (3), control duct length is 50 ~ 100m, allows water body can in pipeline
To flow 30 ~ 60s, it is ensured that Fenton's reaction is abundant；
(5) in step (4), pipeline accesses third water sprayer afterwards, for adding sodium hydroxide solution, for terminating reaction, and promotees
Play the role of coagulating sedimentation into iron ion；Controlling concentration of sodium hydroxide solution is 20% ~ 40%, and third water sprayer adds hydroxide
Sodium solution speed is 1 ~ 5m3/ h, water pH value is 7 ~ 9 after adding sodium hydroxide solution；
(6) PAM solution being added by the 4th water sprayer before step (5) afterwards pipe drainage mouth, PAM solution concentration is 8% ~
10%, the 4th water sprayer dispensing speed is 1 ~ 5m3/h；It is 3 ~ 7ppm that PAM, which adds rear concentration,.
2. technique according to claim 1, it is characterised in that the caliber DN of pipeline described in step (1) is 1000-
2000mm。
3. technique according to claim 1, it is characterised in that the pH value in control waste water described in step (2) is less than 4, tool
Body is that the pH value of water body is 2.5 ~ 3.5.
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| CN107640854A (en) * | 2017-09-25 | 2018-01-30 | 复旦大学 | A kind of dyeing waste water advanced treating integral method of oxidization time in seconds |
| CN107473453A (en) * | 2017-09-30 | 2017-12-15 | 北京中晟清源环保科技有限公司 | A kind of novel pure hydrostatic pipeline reactor |
| CN109592813A (en) * | 2017-09-30 | 2019-04-09 | 北京中晟清源环保科技有限公司 | One type Fenton adds the integrated artistic method of air-float technology |
| CN112939279B (en) * | 2021-02-06 | 2022-10-21 | 湖州光正水质净化有限公司 | Method for automatically adjusting Fenton process parameters based on PH and ORP linkage |
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| CN202717623U (en) * | 2012-08-15 | 2013-02-06 | 天津市联合环保工程设计有限公司 | Integrated Fenton reaction unit |
| CN105236625A (en) * | 2015-11-11 | 2016-01-13 | 苏州市环境保护有限公司 | Fenton printing-dyeing-wastewater deep treatment method |
| CN206014551U (en) * | 2016-08-15 | 2017-03-15 | 浙江省环境工程有限公司 | Convergent improvement type Fenton catalytic oxidation treatment system |
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