CN107680704A - A kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin - Google Patents
A kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin Download PDFInfo
- Publication number
- CN107680704A CN107680704A CN201710912872.9A CN201710912872A CN107680704A CN 107680704 A CN107680704 A CN 107680704A CN 201710912872 A CN201710912872 A CN 201710912872A CN 107680704 A CN107680704 A CN 107680704A
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- Prior art keywords
- exchange resin
- ion exchange
- microwave
- reducing metal
- fast degradation
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/20—Disposal of liquid waste
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/30—Processing
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/34—Disposal of solid waste
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Environmental & Geological Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The present invention relates to a kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin, reducing metal ion is well mixed by the invention with pending ion exchange resin, then adds the hydrogen peroxide of certain mass specific concentration.Under appropriate microwave power, certain time is irradiated to reaction system by microwave irradiation device, makes waste ion-exchang resin fast degradation.Fenton's reaction produces the hydroxyl radical free radical with strong oxidizing property and acted on ion exchange resin, makes its degraded.By microwave action, change system thermodynamic function, reduce the activation energy of reaction and the chemical bond strength of molecule, greatly shorten the heat time, improve reaction efficiency.The method simple production process of the present invention, production cost is low, reaction efficiency is fast.
Description
Technical field
The present invention relates to environmental protection technical field, is radiated more particularly to a kind of microwave cooperating Fenton reagent fast degradation
The method of property waste ion-exchang resin.
Background technology
Ion exchange resin is a kind of high molecular polymer with certain retractility, by skeleton and active group two parts
Composition, in three dimensions in network structure.Skeleton is the building stone to form ion exchange resin, and it is with a kind of linear junction
Based on the macromolecular organic compound of structure, plus a number of crosslinking agent, it is made up of horizontal key bridging action.Amberlite
Fat chemical stability is preferable, is typically insoluble in bronsted lowry acids and bases bronsted lowry.Above characteristic based on resin, is mainly used in nuclear power plant's reactor one
The purified treatment of loop cooling agent, Spent Fuel Pool water.Spent resin specific activity is typically up to 107~1013Bq/kg.With core
Energy is greatly developed, the process problem getting worse of ion exchange resin.Countries in the world are carried out to spent resin processing method
Numerous studies, but ripe, preferable processing method is less.Current most nuclear power stations are stored in radioactive waste ion exchange resin
In stainless steel storage tank, or by radioactive waste ion exchange resin carry out cement solidification processing.Cement solidification and it is temporary can increase-volume,
It is unfavorable and the swelling effect caused by radioactive waste ion exchange resin is combined with cement eventually results in firming body cracking
Disposed in the long-term safety of radwaste.
Fenton wet oxidation method is that (metal ion such as Fe2+, Cu2+, Ni2+ is used as catalyst, peroxide by the use of Fenton reagent
Change hydrogen is reaction medium) substantial amounts of hydroxyl radical free radical (OH) and spent resin effect are produced, the strong oxidizing property of hydroxyl radical free radical will
Spent resin structure is destroyed, and high molecular polymer is decomposed into linear macromolecule, linear macromolecule is further decomposed into small molecule
Until becoming inorganic matter, reach the purpose for being easy to further solidify.
Not smoothgoing emerging super research shows, using traditional Fenton's reaction degrade ion exchange resin when, it is small that reaction duration reaches 3.5
When more than.T.L.Gunale research find, traditional Fenton's reaction degraded ion exchange resin when, the reaction time be up to 4 hours.
The solidification effect and condensate of Fenton wet oxidation process spent resin residue have been inquired into by Taiwan nuclear energy research institute
Processing method.Raffinate adds barium hydroxide to reduce sulfate ion concentration, then adds high-efficiency curing agent and carries out curing process.
China Engineering Physics Research Institute's beam will honor et al. is to 717 types, 201 × 4 types and the common uranium-bearing radioactive spent resin of 3 kinds of 201 × 7 types
Studied, found when hydrogen peroxide initial concentration is 4.0molL-1, the initial concentration of ferrous ion is 20mmolL-
1st, reaction temperature is 95 DEG C, the initial pH value of solution is when being 2.5, and degradation effect is optimal.
Using Fenton advanced oxidation system can make macromolecule organic degraded, be even thoroughly decomposed into carbon dioxide and
Water.Microwave can change system thermodynamic function, reduce the activation energy of reaction and the chemical bond strength of molecule, greatly shorten heating
Time, improve reaction efficiency.Therefore there is very big help for improving degradation efficiency using microwave radiation technology Fenton's reaction.
In field of Environment Protection, the method using microwave radiation technology Fenton reagent processing waste water, fluid organic material is more ripe,
But the case for aiding in the method for Fenton reagent to handle radioactive waste ion exchange resin using microblogging is seldom present.
The content of the invention
The present invention seeks to for radioactive ion exchange resin treatment technology problem, there is provided a kind of microwave cooperating Fenton examination
The method of agent fast degradation radioactive waste ion exchange resin.This method technique is simple, and production cost is low, efficiency high, can apply
In industrial production.
Technical scheme is as follows：
A kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin, by copperas solution
It is well mixed with pending ion exchange resin, then adds the hydrogen peroxide that mass concentration ratio is 30%.In relatively low microwave work(
Irradiated 30 minutes in the microwave irradiation device of rate.Specifically include following steps：
(1) ferrous sulfate and ion exchange resin are weighed for 180: 1000-190: 1000 according to mass ratio, are placed in beaker,
Deionized water is added, copperas solution is well mixed with pending ion exchange resin.
(2) hydrogen peroxide that mass concentration ratio is 30% is added in step (1) described solution, mass concentration ratio is 30%
The mass ratio of hydrogen peroxide and ferrous sulfate is 260: 100000-290: 100000.
(3) mixed solution obtained by step (2) is positioned in microwave heating appts and irradiated 30 minutes, pending ion is handed over
Change the i.e. degradable completion of resin.
Its technical characteristic also resides in, and step (1) described copperas solution is fresh solution, and adds a small amount of sulfuric acid control
PH value of solution is in acid condition.
Beneficial effects of the present invention：
1. the present invention changes system thermodynamic function using the method for microwave radiation technology, the activation energy and molecule of reaction are reduced
Chemical bond strength, greatly shorten the heat time.
2. the present invention is using Fenton's reaction degraded ion exchange resin, mainly organic using hydroxyl radical free radical oxidation macromolecule
Thing.Belong to environmental type edman degradation Edman.
3. the technological process of the inventive method is simple, production cost is low, and degradation efficiency is high, can be applied to industrial production.
Brief description of the drawings
Further the present invention will be described with reference to the accompanying drawings and examples.
Fig. 1 is the design ion exchange resin complexion.
Fig. 2 is that the design implements liquid after 1 gained is degraded.
Fig. 3 is that the design implements 1 gained solid catabolite.
Embodiment
Example is embodied for the part of the present invention below.But institute's protection domain not limited to this of the present invention.
The raw materials used embodiment of the present invention is commercial products, analyzes pure level.
Embodiment 1：
A kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin, step are as follows：
(1) calculated according to degraded 15g ion exchange resin, ferrous sulfate 0.2221g is weighed according to mass ratio 178: 1000；
(2) load weighted errous sulfate crystal and ion exchange resin are placed in beaker, wiring solution-forming, are added dropwise a small amount of dilute
Sulfuric acid solution regulation system pH value is 1.5；
(3) measure mass concentration ratio according to mass ratio 275: 10000 and be placed in step (2) described beaker for 30% hydrogen peroxide
In；
(4) step (3) described beaker is placed in 119W microwave reactors and irradiated 25 minutes, complete ion exchange resin
Degraded.
Ion exchange resin noresidue.
It should be noted that above citing be only the present invention several specific embodiments, the present invention be not limited only to
Upper embodiment, there can also be other deformations.Those skilled in the art directly exports from the disclosure of invention or drawn indirectly
All deformations of Shen, are considered protection scope of the present invention.
Claims (2)
- A kind of 1. method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin, it is characterised in that will be strong Reducing metal solion is well mixed with pending ion exchange resin, then adds the dioxygen of certain mass specific concentration Water, 25-35 minutes are irradiated in the microwave irradiation device under certain microwave power, specifically include following steps：(1) reducing metal ion and ion exchange resin are weighed for 180: 1000-190: 1000 according to mass ratio, is placed in burning Cup, deionized water is added, reducing metal solion is well mixed with pending ion exchange resin；(2) hydrogen peroxide for being by certain mass specific concentration is added in step (1) described solution, the hydrogen peroxide of certain mass specific concentration Mass ratio with reducing metal ion is 260: 100000-290: 100000；(3) mixed solution obtained by step (2) is positioned over irradiation 25-35 minutes in microwave heating appts, pending ion is handed over Change the i.e. degradable completion of resin.
- 2. according to a kind of method of microwave cooperating Fenton reagent fast degradation ion exchange resin described in claim 1, its feature It is, step (1) the reducing metal solion is fresh solution, and adds a small amount of sulfuric acid and control pH value of solution in acid bar Under part.
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| CN201710912872.9A CN107680704A (en) | 2017-09-26 | 2017-09-26 | A kind of method of microwave cooperating Fenton reagent fast degradation radioactive waste ion exchange resin |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215825A (en) * | 2018-10-26 | 2019-01-15 | 西南科技大学 | A kind of radioactive waste ion exchange resin fast degradation device |
| CN109961867A (en) * | 2019-03-27 | 2019-07-02 | 华中科技大学 | Using the method for class Fenton oxidation method processing radioactivity mixture iron exchange resin |
| CN111048224A (en) * | 2019-12-31 | 2020-04-21 | 西南科技大学 | Method for treating radioactive engine oil by inducing plasma through microwave activated carbon |
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| CN101767859A (en) * | 2010-01-19 | 2010-07-07 | 却力挥 | Waste water treatment method combining Fenton oxidization and microwave catalysis phase |
| CN102855953A (en) * | 2012-04-27 | 2013-01-02 | 西南科技大学 | Continuous converting and sintering device for performing microwave high-temperature treatment on radioactive waste |
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2017
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| CN101767859A (en) * | 2010-01-19 | 2010-07-07 | 却力挥 | Waste water treatment method combining Fenton oxidization and microwave catalysis phase |
| CN102855953A (en) * | 2012-04-27 | 2013-01-02 | 西南科技大学 | Continuous converting and sintering device for performing microwave high-temperature treatment on radioactive waste |
| CN103214059A (en) * | 2013-04-09 | 2013-07-24 | 沈阳工业大学 | Microwave-Fenton unified all-in-one machine for treating organic chemical wastewater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215825A (en) * | 2018-10-26 | 2019-01-15 | 西南科技大学 | A kind of radioactive waste ion exchange resin fast degradation device |
| CN109961867A (en) * | 2019-03-27 | 2019-07-02 | 华中科技大学 | Using the method for class Fenton oxidation method processing radioactivity mixture iron exchange resin |
| CN111048224A (en) * | 2019-12-31 | 2020-04-21 | 西南科技大学 | Method for treating radioactive engine oil by inducing plasma through microwave activated carbon |
| CN111048224B (en) * | 2019-12-31 | 2021-09-21 | 西南科技大学 | Method for treating radioactive engine oil by inducing plasma through microwave activated carbon |
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