CN106673171A - Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters - Google Patents
Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters Download PDFInfo
- Publication number
- CN106673171A CN106673171A CN201611202171.8A CN201611202171A CN106673171A CN 106673171 A CN106673171 A CN 106673171A CN 201611202171 A CN201611202171 A CN 201611202171A CN 106673171 A CN106673171 A CN 106673171A
- Authority
- CN
- China
- Prior art keywords
- peroxymonosulfate
- persulfate
- promoting
- organic matters
- sulfate radicals
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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
- C02F2101/34—Organic compounds containing oxygen
Abstract
The invention discloses a method for promoting peroxymonosulfate to generate sulfate radicals for degrading difficultly degraded organic matters. At normal temperature, potassium peroxymonosulfate composite salt and Ni/C composite organo-metallic catalyst are added into water body, after uniform stirring, a reaction is carried out, and the Ni/C composite organo-metallic catalyst can promote peroxymonosulfate to decompose and generate sulfate radicals, in order to realize the purpose for degrading organic matters which are difficult to degrade. The method has wide pH application range, and has good effects in an alkaline condition; compared with ultrasound, microwave and the like which are used for activating peroxymonosulfate, the reaction condition is mild, and high temperature and high pressure as well as other apparatuses are not needed; the process is simple, medicament addition amount is low, and rigour technical requirements are not contained in the operation. The method has the advantages of excellent treatment efficiency, simple method, and wide prospects in the field of treatment of pollutants which are difficult to degrade; and the method is suitable for large scale production.
Description
Technical field
The invention belongs to technical field of water pollution treatment, is related to deep oxidation process and the advanced oxidation skill of Organic substance in water
A kind of art, and in particular to method for promoting single persulfate to produce potentiometric titrations degraded hardly degraded organic substance.
Background technology
High-level oxidation technology refers to the strong oxidizing property free radical produced by the use of in reaction as primary oxidizers oxidation Decomposition
The method of organic pollutants.High-level oxidation technology the most frequently used at present is mainly Fenton methods, and is based on sulfate radical freedom
Base（Chemical formula：SO4 -·）High-level oxidation technology be start in recent years explore a kind of advanced oxidation technology.SO4 -Have
Extremely strong standard oxidationreduction potential（2.5-3.1V）, it could be theoretically argued that can with the most Organic substance of oxidative degradation, therefore,
High-level oxidation technology based on potentiometric titrations has very big Research Prospects.
Potentiometric titrations are more stable in acid and neutral aqueous solution, can also be with H in alkalescence condition2O or OH-Instead
Hydroxyl radical free radical should be generated（Chemical formula OH）, and then cause a series of chain reactions.Microwave is found in past research, is surpassed
Sound, heat and transition metal can promote single persulfate to decompose generation potentiometric titrations, and wherein transition metal activation is because of effect
Rate is high, and reaction condition is gentle, can just promote single persulfate to resolve into for the emphasis of concern under room temperature.But various transition
Metal catalytic effect differs and homogeneous catalysis easily produces secondary pollution, therefore, find out a kind of environmental friendly catalysis efficiency high
Catalyst is the emphasis for implementing the technology.
Chinese patent CN 102633349A disclose " micro difficult degradation in heterogeneous potentiometric titrations oxidation processes water
The method of Organic substance ", the method are, using to waste water Zero-valent Iron and persulfate, to make Zero-valent Iron that Fe is persistently produced in water2+, profit
Use Fe2+Activation persulfate promotes to produce potentiometric titrations, and the potentiometric titrations with high oxidative can be with degradation water
Micro hardly degraded organic substance, so as to reach remove pollutant purpose.CN104710061A is disclosed and " is urged based on ultraviolet being combined
The method that agent catalysis potentiometric titrations process well-drilling waste water ", the method is using the catalyst such as TiO2, AgO and ultraviolet association
With promoting persulfate or single persulfate to produce potentiometric titrations, so as to the mine processed through initial flocculation process gives up
Water.CN 102010052A disclose " a kind of method that cavitation effect collaboration potentiometric titrations process organic sewage ", the method
It is that the catalyst such as cavitation collaboration Co, Ag, Mn using ultrasound promote persulfate or single persulfate to produce sulfate radical certainly
By base so as to degradable organic pollutant.
The content of the invention
Present invention aims to the deficiencies in the prior art, there is provided one kind promotes single persulfate to decompose generation sulphuric acid
The method that root free radical processes hardly degraded organic substance.The method is by adding Ni/C complex organometallic catalysts and list in water
Persulfate, makes the single persulfate of Ni/C complex organometallic catalysts activation, promotes which to produce potentiometric titrations, with strong
The potentiometric titrations of oxidisability can be with the hardly degraded organic substance in oxidative degradation water, so as to reach removing organic pollutants
Purpose.
The method for promoting single persulfate generation potentiometric titrations degraded hardly degraded organic substance of the present invention, its feature exist
In employing the following technical solutions：Single persulfate and catalyst are added in the water containing hardly degraded organic substance and is stirred, single mistake
Sulfate produces potentiometric titrations in the effect of catalyst, and free radical further aoxidizes micro hardly degraded organic substance in water.
Single persulfate of the present invention is ammonium persulfate-sodium bisulfate（Chemical formula：2KHSO5·KHSO4·K2SO4）.
Solid catalyst of the present invention is Ni/C complex organometallic catalysts.
Single persulfate of the present invention is 10 with the mol ratio of hardly degraded organic substance in water:1~50:1.
Ni/C complex organometallic catalysts of the present invention are 0.10 ~ 0.25g/L with the mass volume ratio of water.
The present invention compared with prior art, with advantages below：
（1）, compared with Fenton methods, pH is applied widely, can also have good effect in the basic conditions for the present invention；
（2）The present invention with using ultrasound, compare, and reaction condition is gentle by the single persulfate of the activation such as microwave, be not required to High Temperature High Pressure and
Other instruments equipment；
（3）Process of the present invention is simple, and added amount of chemical is few, operates without harsh technical requirements, can be used for large-scale production.
Description of the drawings
Fig. 1 is the process chart that the method for the present invention processes hardly degraded organic substance in water.
Design sketchs of the Fig. 2 for 1,2,3 para Toluic Acid of the embodiment of the present invention.
Specific embodiment
The specific embodiment of the present invention is further explained with reference to embodiment, but the claimed scope of the invention
It is not limited to that.
Tested as hardly degraded organic substance using benzoic acid, using the method for the present invention to containing benzoic water-soluble
Liquid is processed.
As shown in figure 1, with the method for the present invention to processing containing benzoic aqueous solution.
Embodiment 1, adds concentration of benzoic acid in reactor for the simulated wastewater 500ml of 0.02mM；Add in reactor
Enter ammonium persulfate-sodium bisulfate and Ni/C complex organometallic catalysts, the initial concentration for making ammonium persulfate-sodium bisulfate is
0.4mM（It is 20 with benzoic mol ratio:1）, the concentration of N/C complex organometallic catalysts is 0.2mg/L；Catalyst promotes
Ammonium persulfate-sodium bisulfate decomposes generation potentiometric titrations, the benzoic acid in potentiometric titrations oxidative degradation water.
As shown in Fig. 2 at 20 DEG C ± 2 DEG C, benzoic acid in the 30min degradation rate up to more than 99.9%.
Embodiment 2, adds concentration of benzoic acid in reactor for the simulated wastewater 500ml of 0.02mM；To in simulated wastewater
Initial concentration is added only for the ammonium persulfate-sodium bisulfate of 0.4mM.
As shown in Fig. 2 at 20 DEG C ± 2 DEG C, benzoic acid degradation rate only about 2% in the 30min.
Embodiment 3, adds concentration of benzoic acid in reactor for the simulated wastewater 500ml of 0.02mM；To in simulated wastewater
Concentration is added only for the Ni/C complex organometallic catalysts of 0.2mg/L.
As shown in Fig. 2 at 20 DEG C ± 2 DEG C, benzoic acid degradation rate only about 2% in the 30min.
The invention of this reality is not limited to above-mentioned embodiment, adopts identical with the above embodiment of the present invention or approximate method,
Within protection scope of the present invention.
Claims (5)
1. the method for promoting single persulfate to produce potentiometric titrations degraded hardly degraded organic substance, it is characterised in that in room temperature
Under carry out in the steps below：Single persulfate and solid catalyst are added in processed water body, then uniform stirring is anti-
Should, you can promote single persulfate and generate potentiometric titrations degradation of organic substances.
2. according to claim 1, it is characterised in that single persulfate is ammonium persulfate-sodium bisulfate（Also known as peroxide
Single potassium sulfonate, chemical formula：2KHSO5·KHSO4·K2SO4）.
3. according to claim 1, it is characterised in that the solid catalyst is Ni/C complex organometallic catalysts.
4. the method according to one of right 1 ~ 3, it is characterised in that single persulfate and hardly degraded organic substance in water
Mol ratio is 10:1~50:1.
5. method according to claim 4, it is characterised in that the Ni/C complex organometallic catalysts throwing amount scope is
0.10~0.25g/L。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202171.8A CN106673171A (en) | 2016-12-23 | 2016-12-23 | Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611202171.8A CN106673171A (en) | 2016-12-23 | 2016-12-23 | Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters |
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| CN106673171A true CN106673171A (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611202171.8A Pending CN106673171A (en) | 2016-12-23 | 2016-12-23 | Method for promoting peroxymonosulfate to generate sulfate radicals for degrading organic matters |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693976A (en) * | 2016-12-23 | 2017-05-24 | 四川大学 | Method for preparing heterogeneous organic metal catalyst Ni/C oxide |
| CN108640172A (en) * | 2018-05-15 | 2018-10-12 | 武汉工程大学 | A kind of water treatment agent and method for treating water of the water body organism degradation containing cobalt aluminate |
| CN109467304A (en) * | 2017-09-08 | 2019-03-15 | 湖南大学 | A kind of method of sludge pretreatment |
| CN110002572A (en) * | 2019-04-19 | 2019-07-12 | 天津工业大学 | A kind of Ag2O/TiO2The method for activating persulfate purification phenol wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583692A (en) * | 2011-12-16 | 2012-07-18 | 华南理工大学 | Method for treating organic pollutants in water by catalyzing persulfate through heterogeneous copper oxide |
| CN103523898A (en) * | 2013-11-01 | 2014-01-22 | 哈尔滨工业大学 | Method for utilizing ferric iron for catalyzing reaction between hydroxylamine and PMS for removing pollutants in water |
| CN104310565A (en) * | 2014-10-15 | 2015-01-28 | 济南大学 | Method of treating organic wastewater based on Fenton-like reaction of iron-based organic-framework material |
| CN106140173A (en) * | 2015-04-14 | 2016-11-23 | 中国科学院大连化学物理研究所 | A kind of ferrite/metal oxide materials and its preparation method and application |
-
2016
- 2016-12-23 CN CN201611202171.8A patent/CN106673171A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583692A (en) * | 2011-12-16 | 2012-07-18 | 华南理工大学 | Method for treating organic pollutants in water by catalyzing persulfate through heterogeneous copper oxide |
| CN103523898A (en) * | 2013-11-01 | 2014-01-22 | 哈尔滨工业大学 | Method for utilizing ferric iron for catalyzing reaction between hydroxylamine and PMS for removing pollutants in water |
| CN104310565A (en) * | 2014-10-15 | 2015-01-28 | 济南大学 | Method of treating organic wastewater based on Fenton-like reaction of iron-based organic-framework material |
| CN106140173A (en) * | 2015-04-14 | 2016-11-23 | 中国科学院大连化学物理研究所 | A kind of ferrite/metal oxide materials and its preparation method and application |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693976A (en) * | 2016-12-23 | 2017-05-24 | 四川大学 | Method for preparing heterogeneous organic metal catalyst Ni/C oxide |
| CN106693976B (en) * | 2016-12-23 | 2019-08-13 | 四川大学 | A kind of preparation of the heterogeneous organo-metallic catalyst containing Ni for active oxidation agent degradation of dye waste water |
| CN109467304A (en) * | 2017-09-08 | 2019-03-15 | 湖南大学 | A kind of method of sludge pretreatment |
| CN108640172A (en) * | 2018-05-15 | 2018-10-12 | 武汉工程大学 | A kind of water treatment agent and method for treating water of the water body organism degradation containing cobalt aluminate |
| CN110002572A (en) * | 2019-04-19 | 2019-07-12 | 天津工业大学 | A kind of Ag2O/TiO2The method for activating persulfate purification phenol wastewater |
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