CN108191036A - A kind of method of Atrazine in activation peroxy-monosulfate degradation water body using potassium ferrate - Google Patents
A kind of method of Atrazine in activation peroxy-monosulfate degradation water body using potassium ferrate Download PDFInfo
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- CN108191036A CN108191036A CN201711384902.XA CN201711384902A CN108191036A CN 108191036 A CN108191036 A CN 108191036A CN 201711384902 A CN201711384902 A CN 201711384902A CN 108191036 A CN108191036 A CN 108191036A
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- China
- Prior art keywords
- monosulfate
- atrazine
- peroxy
- water body
- ferrate
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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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- 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
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
-
- 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
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
Abstract
The invention discloses a kind of methods of Atrazine in activation peroxy-monosulfate degradation water body using potassium ferrate, it is related to method for treating water, solves the problems, such as that single peroxy-monosulfate activation efficiency is low.This method is adds ferrate and peroxy-monosulfate in polluted-water, it is interacted using the two and generates the potentiometric titrations and hydroxyl radical free radical of strong oxidizing property, the persistent organic pollutants of further oxidized organic wastewater, so as to achieve the purpose that degradable organic pollutant.It is handled under room temperature of the present invention efficiently, it is quickly, easy to operate；The leaching rate of iron ion is very low during use, reduces secondary pollution；And it is adapted to extensive pH conditions, there is wide application prospect in the purification of organic pollution aquifer.
Description
Technical field
The invention belongs to technical field of water pollution control, and in particular to a kind of ferrate activates peroxy-monosulfate degradation water
The method of Atrazine in body.
Background technology
Atrazine is a kind of herbicide for being widely used in controlling broad leaved weed in agricultural.Due to the use of improper, often
Atrazine is detected in surface water and groundwater, and higher than drinking water standard as defined in European Union (0.1 μ g/L).Atrazine
It is a kind of alkaline compound, stable structure, it is difficult to it degrades, is chronically exposed in atrazine-contaminated environment, it certainly will be to life
Object is multiplied and health exerts an adverse impact.Even at a low concentration, Atrazine can also cause human body carcinogenic and interior
Secrete disturbing effect.Traditional treatment technology is as adsorbed, and coagulation and bioanalysis are largely suggested, however removal efficiency is not enough managed
Think.
High-level oxidation technology is based particularly on potentiometric titrations (SO4 ·-) high-level oxidation technology, for organic contamination
The degradation of object is largely paid close attention to.Compared to hydroxyl radical free radical (OH), SO4 ·-Be more effectively go removal organic polluter due to
Its higher reduction potential and selectivity.SO4 ·-As a strong electronics oxide, it is easier to which attack is rich in unsaturated bond or virtue
The organic compound of fragrant race's electronics, therefore less it is dissolved property organic substance influence.Can by heat, ultrasound, ultraviolet light, alkali with
And transition metal activates persulfate or peroxy-monosulfate to generate.And peroxy-monosulfate is more held due to the asymmetry of structure
Easily it is activated.Although metallic cobalt is considered as best activator, there is secondary pollution in its leakage.Therefore, it is badly in need of
A kind of green catalyst is found to activate peroxy-monosulfate.
Recently, due to its sustainable characteristic of green, iron type materials such as ferrous ion, nano zero valence iron and four oxidations
Three-iron is widely studied.For example, Fe (II)/PMS can effectively degrade, Atrazine is due to OH and SO4 ·-Presence.However,
These materials may include or generate in a short time a large amount of ferrous ions, inhibit SO in turn4 ·-Generation, so as to subtract
The removal of of low pollution object.
Ferrate (Fe (VI)) has been used for a series of dirts as a kind of environmentally friendly oxidant and coagulant
The removal of object is contaminated, oxidation potential is between 0.72-2.20V.It can also reduce the shape of harmful by-products as disinfectant
Into.Pervious document shows that Fe (VI) preferences are reacted with electron rich organic matter through an electronics or oxygen metastasis.In recent years, Fe
(VI) and the combination of other oxidants such as hydrogen peroxide and sulphite is considered as novel chemical oxidation techniques for organic
The processing of pollutant.The combination of peroxy-monosulfate and potassium permanganate, which is also shown, effectively removes trichloro ethylene and phenol.Cause
This, the connected applications of Fe (VI) and peroxy-monosulfate are feasible.
Invention content
The purpose of the present invention is to provide the sides of Atrazine in a kind of potassium ferrate activation peroxy-monosulfate degradation water body
Method, mainly solving the technical problems that：Peroxy-monosulfate activation efficiency is low, and water-soluble metal ion is easy as catalyst
Cause secondary pollution problem.
In order to solve the above technical problems, concrete scheme includes the following steps：
1) peroxy-monosulfate is added into the waste water containing Atrazine, obtains Atrazine solution after mixing, is adjusted
Save the pH value of solution；
2) ferrate material is added into above-mentioned solution, is subsequently placed under constant-temperature table and stirs, Aunar is removed under room temperature
Draw Tianjin.
In step 1, a concentration of 0.02-30mg/L of the Atrazine, including but not limited to Atrazine.
In step 1, the peroxy-monosulfate is one or both of permonosulphuric acid sodium, permonosulphuric acid potassium by arbitrary
The mixture of ratio mixing.
In step 1, the mass ratio 10 of peroxy-monosulfate and Atrazine is controlled:1 to 300:1.
In step 1, the pH value of solution adjusts pH in the range of 3-9 with sulfuric acid or sodium hydroxide.
In step 2, the ferrate mixes in any proportion for the one or two of potassium ferrate or Na2Fe04
Mixture.
In step 2, the dosage of the ferrate is 0.1-2.0g/L.
In step 2, the reaction time is 3-60 minutes.
The technical principle of the present invention：Peroxy-monosulfate provides acidic environment, and ferrate is reduced into rapidly iron ion.
Iron will generate ferrous ion with permonosulphuric acid reactant salt, and subsequent ferrous ion can activate peroxy-monosulfate and generate sulfate radical freedom
Base.In addition, ferrate itself decomposes and the coagulating sedimentation of iron ion can generate ferric oxide particles, the work on its surface in turn
Property site be conducive to peroxy-monosulfate activation generate potentiometric titrations.Finally, potentiometric titrations react generation hydroxyl with water
Free radical.Potentiometric titrations and hydroxyl radical free radical have very strong oxidability, and can rapidly degrade Atrazine.
FeO4 2-+8H++3e-→2Fe3++4H2O) (1)
Fe3++HSO5 -→Fe2++SO5 ·-+H+ (2)
Fe2++HSO5 -→Fe3++SO4 ·-+OH- (3)
≡Fe3+-OH+HSO5 -→≡Fe3+-SO5 -+H2O (4)
≡Fe3+-SO5 -+H2O→≡Fe2+-OH+SO5 ·-+H2O (5)
≡Fe2+-OH+HSO5 -→≡Fe2+-SO5 -+H2O (6)
≡Fe2+-SO5 -+H2O→≡Fe3+-OH+SO4 ·-+H2O (7)
SO4 ·-+H2O→SO4 2-+H++·OH (8)
Advantages of the present invention：
The present invention is using green catalyst peroxy-monosulfate and ferrate, and rapid and significant effect of degrading is normal in room temperature
Pressing operation, easy to operate, management service is more convenient, and the leaching of iron ion is low, small to human body and biohazard, in water
There is very big application potential in pollution control field.
Description of the drawings
Fig. 1 is the design sketch of Atrazine in the method for the present invention pollution administration water body
Fig. 2 is influence of the peroxy-monosulfate dosage to Atrazine degradation.
Fig. 3 is influence of the ferrate dosage to Atrazine degradation.
Fig. 4 is influence of the different initial pH values to Atrazine degradation.
Specific embodiment
The present invention is elaborated in the following with reference to the drawings and specific embodiments, is only that and illustrates the present invention without limiting to
In following instance.
Embodiment 1
The permonosulphuric acid potassium that 5.0mM is added into the Atrazine waste water of 10mg/L obtains waste water solution, with 2mM sulfuric acid and
The pH value that sodium hydroxide adjusts waste water is 6.0.The potassium ferrate that 2.5mM is added in solution is stated then up, is reacted at normal temperatures
60 minutes, see Fig. 1.The degradation efficiency of Atrazine reaches 81.5%.
Embodiment 2
The permonosulphuric acid potassium that 5.0mM is added into the Atrazine waste water of 10mg/L obtains waste water solution, with 2mM sulfuric acid and
The pH value that sodium hydroxide adjusts waste water respectively is 3.0,5.0,7.0 and 9.0.The high ferro that 2.5mM is added in solution is stated then up
Sour potassium reacts 60 minutes, as a result sees Fig. 2 at normal temperatures.Their degradation efficiency respectively reaches 64.3%, 73.8%, 80.7%,
With 78.7%, in the case where pH is 3.0,5.0,7.0 and 9.0.
Embodiment 3
Add 1.2mM, 2.5mM, 4.0mM, one sulphur of mistake of 5.0mM, 7.5mM respectively into the Atrazine waste water of 10mg/L
Sour potassium obtains waste water solution, and the pH value that waste water is adjusted with 2mM sodium hydroxides is 6.0.It states then up in solution and adds 2.5mM's
Potassium ferrate reacts 60 minutes at normal temperatures, and the degradation efficiency of Atrazine is shown in Fig. 3.Their degradation efficiency is respectively
51.8%, 55.8%, 63.0%, 74.8%, 80.7%.
Embodiment 4
The permonosulphuric acid potassium that 5.0mM is added into the Atrazine waste water of 10mg/L obtains waste water solution, with 2mM hydroxides
The pH value that sodium adjusts waste water is 6.0.It states then up and adds 0.5mM, 1.2mM, 2.0mM, 2.5mM, 5.0mM in solution respectively,
The potassium ferrate of 6.0mM reacts 60 minutes at normal temperatures, and the degradation efficiency of Atrazine is shown in Fig. 4.The degradation efficiency of the present embodiment
Respectively 30.9%, 47.2%, 70.4%, 80.0%, 91.7% and 99.9%.
Claims (8)
1. the method for Atrazine, feature include following step in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate
Suddenly：At normal temperatures, ferrate and peroxy-monosulfate are added into the water containing Atrazine, contact is sufficiently stirred, activated
One sulfate formation has the living radical of strong oxidizing property, Atrazine in efficient degradation water.
2. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that a concentration of 0.2-30mg/L of the Atrazine.
3. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the ferrate is potassium ferrate or Na2Fe04.
4. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the peroxy-monosulfate is permonosulphuric acid potassium or permonosulphuric acid sodium.
5. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the mass ratio of the peroxy-monosulfate and Atrazine is 10:1 to 300:1.
6. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the dosage of the ferrate is 0.1-2.0g/L.
7. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the reaction system pH is 3-9.
8. the side of Atrazine in a kind of activation peroxy-monosulfate degradation water body using potassium ferrate according to claim 1
Method, it is characterised in that the reaction time is 3-60 minutes.
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| CN201711384902.XA CN108191036A (en) | 2017-12-20 | 2017-12-20 | A kind of method of Atrazine in activation peroxy-monosulfate degradation water body using potassium ferrate |
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Cited By (6)
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|---|---|---|---|---|
| CN109095590A (en) * | 2018-08-31 | 2018-12-28 | 中国环境科学研究院 | LaFe1-xCuxO3The method for handling residue in water Atrazine |
| CN110368957A (en) * | 2019-06-06 | 2019-10-25 | 中国地质大学（武汉） | A method of activation peroxy-monosulfate degradation Atrazine |
| CN110483183A (en) * | 2019-09-23 | 2019-11-22 | 哈尔滨工业大学 | A method of cow dung and cotton stalk mixture are pre-processed jointly using persulfate and potassium ferrate |
| CN112452125A (en) * | 2020-11-18 | 2021-03-09 | 福建省锅炉压力容器检验研究院 | Sludge collaborative incineration tail flue gas pollutant removal method and device |
| CN113121007A (en) * | 2021-05-14 | 2021-07-16 | 华侨大学 | Method for degrading paracetamol in water by using peroxymonosulfate |
| CN115745134A (en) * | 2022-11-23 | 2023-03-07 | 南京大学 | Method for catalyzing high-efficiency selective oxidation of peroxymonosulfate by using iron complex |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095590A (en) * | 2018-08-31 | 2018-12-28 | 中国环境科学研究院 | LaFe1-xCuxO3The method for handling residue in water Atrazine |
| CN110368957A (en) * | 2019-06-06 | 2019-10-25 | 中国地质大学（武汉） | A method of activation peroxy-monosulfate degradation Atrazine |
| CN110368957B (en) * | 2019-06-06 | 2020-11-27 | 中国地质大学（武汉） | Method for degrading atrazine by activating peroxymonosulfate |
| CN110483183A (en) * | 2019-09-23 | 2019-11-22 | 哈尔滨工业大学 | A method of cow dung and cotton stalk mixture are pre-processed jointly using persulfate and potassium ferrate |
| CN110483183B (en) * | 2019-09-23 | 2021-10-01 | 哈尔滨工业大学 | Method for jointly pretreating mixture of cow dung and cotton straws by utilizing persulfate and potassium ferrate |
| CN112452125A (en) * | 2020-11-18 | 2021-03-09 | 福建省锅炉压力容器检验研究院 | Sludge collaborative incineration tail flue gas pollutant removal method and device |
| CN112452125B (en) * | 2020-11-18 | 2022-09-13 | 福建省锅炉压力容器检验研究院 | Sludge collaborative incineration tail flue gas pollutant removal method and device |
| CN113121007A (en) * | 2021-05-14 | 2021-07-16 | 华侨大学 | Method for degrading paracetamol in water by using peroxymonosulfate |
| CN115745134A (en) * | 2022-11-23 | 2023-03-07 | 南京大学 | Method for catalyzing high-efficiency selective oxidation of peroxymonosulfate by using iron complex |
| CN115745134B (en) * | 2022-11-23 | 2024-03-08 | 南京大学 | Method for catalyzing efficient selective oxidation of peroxymonosulfate by utilizing iron complex |
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