CN109626554A - A kind of preparation method of the solid oxygen particle with slow-release oxygen function - Google Patents
A kind of preparation method of the solid oxygen particle with slow-release oxygen function Download PDFInfo
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- CN109626554A CN109626554A CN201910038398.0A CN201910038398A CN109626554A CN 109626554 A CN109626554 A CN 109626554A CN 201910038398 A CN201910038398 A CN 201910038398A CN 109626554 A CN109626554 A CN 109626554A
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
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- Biodiversity & Conservation Biology (AREA)
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Abstract
It is to be uniformly mixed to obtain mixture A with ferrous sulfate powder after clay and diatomite are calcined and ground the invention discloses a kind of preparation method of solid oxygen particle with slow-release oxygen function；Percarbamide, potassium hydrogen persulfate powder are uniformly mixed with charcoal, then are mixed and stirred for being uniformly dispersed with polyvinylpyrrolidonesolution solution, obtains mixture B；The mixture B is added in the mixture A and is uniformly mixed, mixture C is obtained, tabletting is then carried out using rotary tablet machine, can be obtained solid oxygen particle.Method of the invention have many advantages, such as easy to operate, agents useful for same it is simple it is nontoxic, using it is wide, practical, can slowly generate oxygen for a long time.
Description
Technical field
The present invention relates to a kind of preparation methods of solid oxygen particle with slow-release oxygen function, belong to the preparation of solid oxygen material
Field.
Background technique
Usually said " solid oxygen " refers to SODIUM PERCARBONATE, stabilizer, white or color grains shape oxygenation made of synergist
Agent, oxygenation agent are designed using special cylindrical particle, can directly sink to pond bottom, a large amount of oxygen are generated after reacting with water,
Increase sharply water body dissolved oxygen, and can maintain the high dissolved oxygen in water in a period of time.
Aerobic Process for Treatment can be carried out for organic matter in water in existing black and odorous water Treatment process, by organic matter degradation, conversion
At humus sample substance, but " solid oxygen " in the prior art can not maintain a metastable dissolution in water body for a long time
Oxygen concentration causes anaerobic environment to be mutated aerobic environment, and aerobic microbiological is made not turn out to come in the short time.
It needs to provide a stable aerobic environment for river bottom in view of aerobic treatment, therefore obtain one kind to have
The solid oxygen particle of slow-release oxygen function is particularly important.
Summary of the invention
The present invention is directed to above-mentioned deficiency of the prior art, it is desirable to provide a kind of solid oxygen with slow-release oxygen function
The preparation method of particle.The method of the present invention is easy to operate, the single easy acquisition of agents useful for same, practical using wide, can delay for a long time
It is slow to generate oxygen.
The present invention has the preparation method of the solid oxygen particle of slow-release oxygen function, includes the following steps:
Step 1: being uniformly mixed after clay and diatomite are calcined and ground with ferrous sulfate powder and obtain mixture A；
Step 2: percarbamide, potassium hydrogen persulfate powder are uniformly mixed with charcoal, then with polyvinylpyrrolidone
Solution is mixed and stirred for being uniformly dispersed, and obtains mixture B；
Step 3: the mixture B being added in the mixture A and is uniformly mixed, mixture C is obtained, then using rotation
Formula tablet press machine carries out tabletting, can be obtained solid oxygen particle.
In step 1, calcination temperature is 300-500 DEG C；Particle size is 0.1-1mm after grinding.
In step 1, the mass ratio of clay, diatomite and ferrous sulfate is 0.1-0.5:1:0.15-0.6.
In step 2, the mass ratio of percarbamide, potassium hydrogen persulfate and charcoal is 1:1:0.1-0.6.
In step 2, the addition quality of polyvinylpyrrolidonesolution solution is the 2-5% of mixture C quality, polyvinylpyrrolidine
The volumetric concentration of ketone solution is 0.5-5%.
In step 3, the mass ratio of mixture A and mixture B mixing is 1:1.
Compared with prior art, the beneficial effects of the present invention are embodied in:
1, firstly, the present invention uses the mixture of percarbamide and potassium hydrogen persulfate as releasing agent for the first time, institute can be reached
The release oxygen amount needed, and discharge more stable；Secondly, ensure that and release as sustained release cosolvent using polyethylene pyrrole network alkanone
Let off the long-term effect of journey.
2, reagent of the present invention is nontoxic to water body, can secular equilibrium water body pH, avoid water body pH value compared with
Great fluctuation process.Using charcoal as stabilizer, particle ensure that in the stablizing effect of water body environment, while charcoal can adsorb
Organic pollutants in water body, promotion pollutant come into full contact with produced oxygen.
3, the method for present invention preparation slow-release oxygen particle has easy to operate, the single easy acquisition of agents useful for same, using wide, real
With property it is strong, can slowly generate the advantages that oxygen for a long time, have broad application prospects in black and odorous water improvement.
Detailed description of the invention
Fig. 1 is the schematic diagram of solid oxygen particle oxygen release in anaerobic water of different amounts.From figure 1 it appears that this hair
Bright solid oxygen particle can prolonged slow release oxygen, and dosage 6g or more can make anaerobic water for a long time in 1L anaerobic water
Dissolved oxygen in 5mg/L or so.
Fig. 2 is without the solid oxygen particle of the dosage schematic diagram that pH changes in anaerobic water.From figure 2 it can be seen that this
Invention solid oxygen particle can slowly discharge oxygen compared to the mixture of percarbamide and potassium hydrogen persulfate, and can put down
PH in Hengshui plays the effect of buffering to the pH value in water body.
Specific embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, but not thereby limiting the invention
Protection scope.
Material employed in following embodiment and instrument are commercially available.
Embodiment 1: the preparation of slow-release oxygen particle
1, charcoal is prepared by vacuum cracking, is ground after the rice straw being collected into is air-dried, is less than original dimension
0.25mm, then in 350 DEG C of tube furnaces lead to nitrogen Pintsch process 2h, by the charcoal of acquisition successively use 0.1mol/L HCl and
Ultrapure water is cleaned to neutrality, after dry in 105 DEG C, is ground, and with 0.25mm the screen to filtrate, obtains initial biology
Carbon Materials.
2, the clay of 0.2mg, 1mg diatomite are mixed after 500 DEG C of calcinings are ground with the ferrous sulfate powder of 0.3mg
Even acquisition mixture A；Percarbamide and potassium hydrogen persulfate powder 1mg that mass ratio is 1:1 are mixed with 0.2mg charcoal again
It is even, mixture B is obtained after mixing and be sufficiently stirred with 0.3mg polyethylene pyrrole network alkanone solution (PVP, 3%)；By the mixture
B is added in mixture A, is carried out tabletting using rotary tablet machine, is obtained solid oxygen particle to be prepared.
Embodiment 2:
1, by 1L by boiling the cylindrical reactor that the distilled water injection diameter that sterilization cools is 10cm, a height of 15cm,
And stirrer is set, it is closed with sealing-plug.0.2gNa is put into reactor from dispensing mouth2SO3And 0.05gCoCl2, close and throw
Medicine mouth removes the dissolved oxygen in reactor, after DO is down to 0mg/L and stablizes 0.5h, can carry out next step experiment.
2, four are placed by the processed reactor of above-mentioned steps 1 on the table, respectively to aforementioned four reaction
Solid oxygen particle prepared by 0g, 3g, 6g, 9g embodiment 1 is added in device, then dissolved oxygen probe is surveyed in insertion from feeding opening and pH is visited
Head.
3, daily in four reactors dissolved oxygen and pH value detect.
The solid oxygen particle can prolonged slow release oxygen, and dosage 6g or more can in 1L anaerobic water
Anaerobic water is set to be in the dissolved oxygen of 5mg/L or so for a long time.
Embodiment 3:
1, by 1L by boiling the cylindrical reactor that the distilled water injection diameter that sterilization cools is 10cm, a height of 15cm,
And stirrer is set, it is closed with sealing-plug.0.2gNa is put into reactor from dispensing mouth2SO3And 0.05gCoCl2, close and throw
Medicine mouth removes the dissolved oxygen in reactor, after DO is down to 0mg/L and stablizes 0.5h, can carry out next step experiment.
2, three are placed by the processed reactor of above-mentioned steps 1 on the table, respectively to above-mentioned two reaction
The mixture of 6g solid oxygen particle, 6g percarbamide and potassium hydrogen persulfate is added in device, another reactor does not add as sky
White group, then pH value probe and dissolved oxygen probe are surveyed in insertion from feeding opening.
3, daily in three reactors pH value and dissolved oxygen detect.
The solid oxygen particle can slowly discharge oxygen compared to the mixture of percarbamide and potassium hydrogen persulfate
Gas, and the effect of buffering can be played to the pH value in water body with the pH in equilibrium water.
Fig. 1 is the schematic diagram of solid oxygen particle oxygen release in anaerobic water of different amounts.By in figure it is found that solid-state used
Oxygen amount of particles is bigger, attainable dissolved oxygen concentration it is higher, solid-state of the solid oxygen particle than dosage 3g of dosage 6g
The dissolved oxygen that oxygen particle can maintain about is higher by 2mg/L, but when the dosage of solid oxygen particle is 9g, in opening for reaction
Its dissolved oxygen that begins can reach 5.5mg/L or so, and after time settling out slowly, the dissolved oxygen that can be maintained is in 5mg/
L or so, the dissolved oxygen concentration that can be maintained with dosage 6g are similar.It launches into 6g percarbamide and potassium hydrogen persulfate mixture
Its dissolved oxygen has reached 7mg/L in 30h in container, and slowly decline reaches 4mg/L in 120h later, and is also holding
Continuous decline.It can be seen that the solid oxygen particle can slow down the oxygen release rate of oxygen release substance, and can have for a long time
Oxygen release is imitated, so that dissolved oxygen concentration maintains a higher level.
Fig. 2 is without the solid oxygen particle of the dosage schematic diagram that pH changes in anaerobic water.By in figure it is found that solid oxygen
The dosage of grain is bigger, and the pH value of solution is lower, but the fluctuation range of pH is little, and basic ph values tie up pH value all 6 or more
It holds in a stable state.PH value in the container of 6g percarbamide and potassium hydrogen persulfate mixture is launched to start in 10h
Rapidly decline, final ph are stablized 5 or so.It is possible thereby to illustrate the solid oxygen particle can pH in equilibrium water, to water
PH value in body plays the effect of buffering.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of preparation method of the solid oxygen particle with slow-release oxygen function, it is characterised in that include the following steps:
Step 1: being uniformly mixed after clay and diatomite are calcined and ground with ferrous sulfate powder and obtain mixture A；
Step 2: percarbamide, potassium hydrogen persulfate powder are uniformly mixed with charcoal, then with polyvinylpyrrolidonesolution solution
It is mixed and stirred for being uniformly dispersed, obtains mixture B；
Step 3: the mixture B being added in the mixture A and is uniformly mixed, mixture C is obtained, then using rotary pressure
Piece machine carries out tabletting, can be obtained solid oxygen particle.
2. preparation method according to claim 1, it is characterised in that:
In step 1, calcination temperature is 300-500 DEG C.
3. preparation method according to claim 1, it is characterised in that:
In step 1, particle size is 0.1-1mm after grinding.
4. preparation method according to claim 1, it is characterised in that:
In step 1, the mass ratio of clay, diatomite and ferrous sulfate is 0.1-0.5:1:0.15-0.6.
5. preparation method according to claim 1, it is characterised in that:
In step 2, the mass ratio of percarbamide, potassium hydrogen persulfate and charcoal is 1:1:0.1-0.6.
6. preparation method according to claim 1, it is characterised in that:
In step 2, the addition quality of polyvinylpyrrolidonesolution solution is the 2-5% of mixture C quality, and polyvinylpyrrolidone is molten
The volumetric concentration of liquid is 0.5-5%.
7. preparation method according to claim 1, it is characterised in that:
In step 3, the mass ratio of mixture A and mixture B mixing is 1:1.
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| CN201910038398.0A CN109626554B (en) | 2019-01-16 | 2019-01-16 | Preparation method of solid oxygen particles with oxygen slow-release function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110844993A (en) * | 2019-11-29 | 2020-02-28 | 河南骏化发展股份有限公司 | Composite oxygen increasing agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110844993A (en) * | 2019-11-29 | 2020-02-28 | 河南骏化发展股份有限公司 | Composite oxygen increasing agent and preparation method thereof |
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