CN110015743A - A method of strengthening azanol/persulfate system and removes organic pollutants - Google Patents
A method of strengthening azanol/persulfate system and removes organic pollutants Download PDFInfo
- Publication number
- CN110015743A CN110015743A CN201910280017.XA CN201910280017A CN110015743A CN 110015743 A CN110015743 A CN 110015743A CN 201910280017 A CN201910280017 A CN 201910280017A CN 110015743 A CN110015743 A CN 110015743A
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- China
- Prior art keywords
- azanol
- persulfate
- organic pollutants
- persulfate system
- copper
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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
- C02F1/66—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
-
- 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of reinforcing azanol/persulfate system removal organic pollutants methods to be stirred to react 1~10min at being 5~45 DEG C in water temperature in azanol and persulfate copper ion and iron ion water body to be processed.The present invention can quickly and efficiently generate the organic pollutant in high activity species oxidative degradation water simultaneously in acid, neutral and alkaline pH range (pH2-12), have very strong impact resistance to the fluctuation of water quality pH to be processed.
Description
Technical field
The invention belongs to water-treatment technology fields, and in particular to a kind of reinforcing azanol/persulfate system goes in water removal to have
The method of machine pollutant.
Background technique
In recent years, the water environment pollution in China is more serious, wherein earth's surface river along with the high speed development of economy and society
The organic pollution that stream lake and body of groundwater are subject to is extremely serious.Currently, surface water body and body of groundwater organic contamination is normal
See that restorative procedure has Main physical absorption method, chemical reduction method, biological degradation method, chemical precipitation method and advanced oxidation processes etc..Its
In, potentiometric titrations and hydroxyl radical free radical of the advanced oxidization method due to that can generate very high redox potential can quick oxygen
Change the organic pollutant in degradation and mineralising polluted-water, thus in engineering practice by extensive utilization.
Persulfate be it is a kind of it is cheap, using it is safe, be easily manipulated and transport and not will cause the green of secondary pollution
The novel water process oxidant of color is lived with the potentiometric titrations etc. of easily-activated generation more high oxidative capacity by force with autoxidation
The advantages of property species.Some researches show that persulfate can often be activated by azanol and generate potentiometric titrations.But it is living based on azanol
The mode for changing persulfate has that generation potentiometric titrations are slow, persulfate utilization rate is not high, in water treatment procedure
It generally requires to be aerated or ultraviolet irradiation or microwave radiation or sonic oscillation or extra electric field or magnetic field etc. is utilized with improving
Rate.There is research surface again, iron can strengthen azanol activation persulfate system to generate potentiometric titrations and hydroxyl radical free radical,
Although avoiding aeration or ultraviolet irradiation or microwave radiation based on iron reinforcing azanol persulfate system degradation of organic substances or surpassing
Sound oscillation or extra electric field or magnetic field and etc., however this method must in acid condition, such as very narrow pH range (3-5)
It can realize efficient processing.Therefore, the system is also exposed under the conditions of neutral and alkali the problems such as organic matter degradation low efficiency.
Summary of the invention
It is an object of the invention to provide a kind of reinforcing azanol/persulfate body in place of overcome the deficiencies in the prior art
The method of system's removal organic pollutants is homogeneously to be strengthened using the double transition metal ions of copper and iron trace, makes the system
It still is able to realize efficient organic matter degradation under the conditions of neutral and alkali, efficiently solves the problems in above-mentioned background technique.
The technical solution adopted by the present invention to solve the technical problems is: providing a kind of reinforcing azanol/persulfate body
The method of system's removal organic pollutants, includes the following steps:
(1) azanol and persulfate are added in staying water；
(2) copper ion and iron ion be added to step (1) simultaneously treated in water body, stirred at being 5~45 DEG C in water temperature
Mix 1~10min of reaction；
Wherein, the molar concentration of the organic pollutant in staying water, azanol, persulfate, iron ion and copper ion
Than for 1:5~50:10~100:0.1~1:0.1~1.
It is 2~12 that staying water pH value is adjusted in a preferred embodiment of the present invention, before the step (1).
In a preferred embodiment of the present invention, the azanol is that hydroxylamine hydrochloride, hydroxylamine perchlorate, hydroxyl sulfate and azanol are molten
At least one of liquid.
In a preferred embodiment of the present invention, the donor of the persulfate is sodium peroxydisulfate, potassium peroxydisulfate and persulfuric acid
At least one of ammonium.
In a preferred embodiment of the present invention, the donor of the iron ion is ferric perchlorate, iron chloride, ferric nitrate, sulfuric acid
At least one of iron, ferrous perchlorate, frerrous chloride, ferrous nitrate and ferrous sulfate.
In a preferred embodiment of the present invention, the donor of the copper ion be stannous chloride, cuprous acetate, cuprous sulfide,
At least one of cupric perchlorate, copper chloride, copper nitrate and copper sulphate.
It is 6 with perchloric acid or sulfuric acid, sodium hydroxide solution adjustment staying water pH in a preferred embodiment of the present invention
~12.
In a preferred embodiment of the present invention, in the step (2) in the case where water temperature is 25 DEG C, it is stirred to react 5min.
The technical program compared with the background art, it has the following advantages:
1. the present invention has the advantages that have pH range wide degradation of organic substances, can have in 2 to 12 efficient degradation of pH range
Machine object still realizes the efficient degradation of organic matter especially within the scope of the neutral and alkali that pH is 6~12.
2. the present invention has, free radical formation speed is fast, organic pollutant removal is high-efficient, azanol and persulfate utilize
Rate is high, need not increase that other processing equipments, disposable input cost is low, operating cost is low, operation is simple, applied widely
The advantages that.
3. the present invention is not needed additionally to be aerated again, be heated, ultraviolet irradiation, microwave irradiation, ultrasonic cavitation and outer power-up
The processes such as magnetic field.
Detailed description of the invention
Fig. 1 be embodiment 1 in each system to degradation Acid Orange II false first-rate, wherein ■ be copper ion/iron from
Removal effect curve of the son/azanol/persulfate system to Acid Orange II；■ is copper ion/azanol/persulfate system to drop
Solve the false first-rate curve of Acid Orange II；▲ it is iron ion/azanol/persulfate system to the false level-one of degradation Acid Orange II
Rate curve；▼ is false first-rate curve of the azanol/persulfate system to degradation Acid Orange II；
Fig. 2 be embodiment 2 in each system to degradation 4 chlorophenols false first-rate, wherein ■ be copper ion/iron ion/
False first-rate curve of the azanol/persulfate system to 4 chlorophenols of degradation；■ is copper ion/azanol/persulfate system to drop
Solve the false first-rate curve of 4 chlorophenols；▲ it is iron ion/azanol/persulfate system to the false first-rate song of 4 chlorophenols of degradation
Line；▼ is false first-rate curve of the azanol/persulfate system to 4 chlorophenols of degradation.
Specific embodiment
Embodiment 1
A kind of reinforcing azanol of the present embodiment/persulfate system removal organic pollutants method, including it is as follows
Step:
(0) the staying water initial pH value that organic pollutant is 4 chlorophenols is adjusted respectively with sulfuric acid and sodium hydroxide solution
It is 2,4,6,8,10 and 12；
(1) hydroxyl sulfate, potassium peroxydisulfate are added in staying water；
(2) ferric sulfate and copper sulphate is added to step (1) simultaneously treated in water body, stirred at being 25 DEG C in water temperature
React 5min；
Wherein, the molar concentration of the organic pollutant in staying water, azanol, persulfate, iron ion and copper ion
Than for 25:150:700:10:3.
From figure 1 it appears that divalent is added in azanol/iron ion/persulfate system in the range of pH=2~12
Copper and ferrous ion promote the removal rate of Acid Orange II significantly；Copper ion/iron ion/azanol/persulfate system
Compared to iron ion/azanol/persulfate system and copper ion/azanol/persulfate system to the removal effect of Acid Orange II
More preferably.
Embodiment 2
The staying water initial pH value that organic pollutant is 4 chlorophenols is adjusted to 2 respectively with sulfuric acid and sodium hydroxide solution,
4,6,8,10 and 12；
Then hydroxyl sulfate, potassium peroxydisulfate, ferric sulfate and copper sulphate is successively added in order into staying water,
Water temperature is that uniform stirring reacts 5min at 25 DEG C, that is, is completed；
Wherein, the molar concentration of the organic pollutant in staying water, azanol, persulfate, iron ion and copper ion
Than for 30:300:1000:10:3.
From figure 2 it can be seen that divalent is added in azanol/iron ion/persulfate system in the range of pH=2~12
Copper and ferrous ion promote azanol/persulfate system to the removal rate of 4 chlorophenols significantly；And compared to iron from
Son/azanol/persulfate system and copper ion/azanol/persulfate system, copper ion/iron ion/azanol/persulfate body
It is almost to be improved twice to the false first-rate of 4 chlorophenols of degradation, this illustrates copper ion/iron ion/azanol/persulfate system
It is more preferable to the removal effect of 4 chlorophenols.
The above is only the preferred embodiment of the present invention, the range implemented of the present invention that therefore, it cannot be limited according to, i.e., according to
Equivalent changes and modifications made by the invention patent range and description, should still be within the scope of the present invention.
Claims (8)
1. a kind of strengthen azanol/persulfate system removal organic pollutants method, which is characterized in that including walking as follows
It is rapid:
(1) azanol and persulfate are added in staying water；
(2) copper ion and iron ion be added to step (1) simultaneously treated in water body, stirred at being 5~45 DEG C in water temperature anti-
Answer 1~10min；
Wherein, the molar concentration rate of the organic pollutant in staying water, azanol, persulfate, iron ion and copper ion is
1:5~50:10~100:0.1~1:0.1~1.
2. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
Be characterized in that: it is 2~12 that staying water pH value is adjusted before the step (1).
3. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
Be characterized in that: the azanol is at least one of hydroxylamine hydrochloride, hydroxylamine perchlorate, hydroxyl sulfate and hydroxylamine solution.
4. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
Be characterized in that: the donor of the persulfate is at least one of sodium peroxydisulfate, potassium peroxydisulfate and ammonium persulfate.
5. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
Be characterized in that: the donor of the iron ion be ferric perchlorate, iron chloride, ferric nitrate, ferric sulfate, ferrous perchlorate, frerrous chloride,
At least one of ferrous nitrate and ferrous sulfate.
6. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
Be characterized in that: the donor of the copper ion is stannous chloride, cuprous acetate, cuprous sulfide, cupric perchlorate, copper chloride, copper nitrate
At least one of with copper sulphate.
7. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 2,
It is characterized in that: being 6~12 with perchloric acid or sulfuric acid, sodium hydroxide solution adjustment staying water pH.
8. a kind of method strengthened azanol/persulfate system and remove organic pollutants according to claim 1,
It is characterized in that: in the step (2) in the case where water temperature is 25 DEG C, being stirred to react 5min.
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| CN201910280017.XA CN110015743A (en) | 2019-04-09 | 2019-04-09 | A method of strengthening azanol/persulfate system and removes organic pollutants |
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| CN201910280017.XA CN110015743A (en) | 2019-04-09 | 2019-04-09 | A method of strengthening azanol/persulfate system and removes organic pollutants |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847623A (en) * | 2020-06-23 | 2020-10-30 | 东华大学 | Method for composite treatment of PVA-containing printing and dyeing wastewater based on two free radicals |
| CN113105041A (en) * | 2021-04-06 | 2021-07-13 | 中南民族大学 | Method for degrading dehalogenated halogenated phenol pollutants by enhanced ultraviolet light |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111847623A (en) * | 2020-06-23 | 2020-10-30 | 东华大学 | Method for composite treatment of PVA-containing printing and dyeing wastewater based on two free radicals |
| CN113105041A (en) * | 2021-04-06 | 2021-07-13 | 中南民族大学 | Method for degrading dehalogenated halogenated phenol pollutants by enhanced ultraviolet light |
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