CN206661920U - The processing unit of uranium contaminated soil is repaired in reduction - Google Patents
The processing unit of uranium contaminated soil is repaired in reduction Download PDFInfo
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- CN206661920U CN206661920U CN201720475105.1U CN201720475105U CN206661920U CN 206661920 U CN206661920 U CN 206661920U CN 201720475105 U CN201720475105 U CN 201720475105U CN 206661920 U CN206661920 U CN 206661920U
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- reaction unit
- contaminated soil
- inlet pipe
- cavity volume
- processing unit
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Abstract
The utility model provides a kind of processing unit for reducing and repairing uranium contaminated soil, it passes through sulfate reducing bacteria Mixed Microbes, it is uranous (U (IV)) stable, that solubility is very low that U (VI) in uranium pollutant effluents is converted into U (IV), and fixed, also include a transmission belt, the feed end of the transmission belt is arranged at the lower section of the discharging opening on disintegrating machine/disintegrating machine；Also include a reaction unit, the reaction unit has closed cavity volume, and the reaction unit is provided with material inlet, and the material inlet is provided with dismountable cover plate；The discharge end of the transmission belt is arranged at the top of the material inlet；It is provided with agitating paddle in the reaction unit, reaction unit bottom is provided with material outlet, and water inlet pipe is provided with the cavity volume in reaction unit.
Description
Technical field
The technical field of uranium contaminated soil remediation in environmental improvement is the utility model is related to, more particularly to one kind passes through sulfuric acid
Salt reducing bacteria Mixed Microbes, uranium contaminated soil is repaired into the reduction that the U (VI) in uranium contaminated soil is converted into U (IV) and is subject to fixation
Processing unit.
Background technology
Nuclear energy is increasingly valued by people as a kind of important energy.Main nuclear fuel of the uranium as nuclear energy, its
The dynamics for adopting smelting is also increasing.The exploitation and smelting of uranium ore generate substantial amounts of uraniferous waste rock, Uranium tailings and uranium-containing waste water.Together
When, exposed to outdoor barren rock under the effect such as rain drop erosion, weathering, the radioactive uranium constantly leaching in barren rock is leached out, with rain
Water spreads, and will certainly cause the pollution of the region surface water and groundwater, and the radioactivity in turn resulting in the low dosage of large area is dirty
Dye.
The large-scale development application developed rapidly with nuclear energy of nuclear industry, result in a large amount of uses of uranium resource, and uranium is one
Kind long-lived element, and there is very strong biology, chemical toxicity and very high radioactivity.Once into soil, water body and ecology
Environment, it will bring long-term radiological hazard hidden danger, directly threaten the health of the mankind；It is quick with China's economy
Development, radioactive uranium are entered in soil, cause very serious soil radioactivity uranium pollution.
The conventional method of the low concentration radioactive wastewater of China's processing at present mainly has absorption method, chemical precipitation method, ion to hand over
Change method etc..Absorption method and ion-exchange have preferable treatment effect, but the material price used is expensive, and ion is handed over
Regeneration and the disposal for changing agent are more difficult.Therefore, absorption method and ion-exchange are not suitable for a large amount of water bodys of processing, and especially uranium pollutes
The processing of underground water.It is bad for low concentration water body treatment effect although chemical precipitation method cost is relatively low, and easily
Cause secondary pollution.In recent years, there are some new processing methods, for example, biosorption process, swelling local method, emulsification embrane method,
Zero-valence Iron Process.At present these new technologies can solve present in conventional purge handling process handle after sludge quantity it is big caused by two
It is secondary to pollute and handle the problems such as water is few, but also have its limitation.Although biosorption process, Zero-valence Iron Process and emulsification embrane method place
Science and engineering skill is simple, but sensitive to environmental change, therefore also in laboratory stage.Swelling local method has treating capacity big, and cost is low
The advantages that, but for the water body of extremely low uranium concentration, the interference of other chemical compositions is big, and efficiency is low.
In summary, low concentration uranium polluted underground water is handled using tradition or novel method, after-treatment difficulty is present, holds
Easily cause secondary environmental pollution or it is either inefficient or expensive the shortcomings of.Therefore, new resources conservation is researched and developed
The restorative procedure of type, environmentally friendly uranium pollutant effluents, be that China environment remediation scientific worker need be carried out urgent
Business.
The content of the invention
The purpose of this utility model is overcome the deficiencies in the prior art, adapts to real needs, there is provided one kind reduction is repaired
The processing unit of uranium contaminated soil, the U (VI) in uranium pollutant effluents is converted into U by it by sulfate reducing bacteria Mixed Microbes
(IV) it is the uranous (U (IV)) stable, solubility is very low, and is fixed.
In order to realize the purpose of this utility model, technical scheme is used by the utility model：
Design it is a kind of it include disintegrating machine/disintegrating machine with charging aperture and discharging opening, in addition to a transmission belt, the biography
The feed end of defeated band is arranged at the lower section of the discharging opening on disintegrating machine/disintegrating machine；Also include a reaction unit, the reaction unit
With closed cavity volume, the reaction unit is provided with material inlet, and the material inlet is provided with dismountable cover plate；It is described
The discharge end of transmission belt is arranged at the top of the material inlet；Agitating paddle, reaction unit bottom are provided with the reaction unit
Provided with material outlet, water inlet pipe is provided with the cavity volume in reaction unit.
Preferably, mesh transmission band, the mesh transmission band are additionally provided with below the material outlet of the reaction unit bottom
It is arranged in water leg；The conveying worm for also include an aggregate bin, connecting with the feed opening of aggregate bin bottom, in addition to a dirt
Mud wringing machine, the discharging opening of the conveying worm connect with the mud inlet of sludge wringing machine；Also include a collecting-tank, the collection
Discharge outlet on tank and the sludge wringing machine is connected by corresponding pipeline with collecting-tank respectively.
Preferably, the rectangular body structure of cavity volume in the reaction unit, and the cavity volume in the reaction unit is laterally set
Put.
Preferably, the agitating paddle includes agitating shaft and the puddler being fixed on agitating shaft；In the reaction unit
Several interval setting agitating paddles are provided with cavity volume, width of the agitating shaft along the reaction unit is set；If
One end of the dry agitating shaft extends to the outside of reaction unit, and the end of two neighboring agitating shaft is connected by chain,
And positioned at the connection corresponding with stirring motor of the end of one of agitating shaft on reaction unit one end.
Preferably, the longitudinally disposed dividing plate in several intervals is provided with the collecting-tank, is formed between two neighboring dividing plate
Stillpot, the height of the dividing plate is less than the height of the water leg, upper with the water leg in the reverse direction of pipeline junction
Portion's side wall is provided with overfall.
Preferably, the bottom in the reaction unit is additionally provided with gas inlet pipe, and the gas inlet pipe enters provided with several
Stomata, axial direction of the gas inlet pipe along the agitating shaft is set, and the gas inlet pipe is arranged at two neighboring stirring
The middle and lower part of axle.
Preferably, the gas inlet pipe is connected by booster pump with external air source.
Preferably, the water inlet pipe is arranged at the top of the reaction unit, and the top in reaction unit cavity volume
Provided with the shower nozzle being connected with water inlet pipe.
The beneficial effects of the utility model are：
Present apparatus novel in structural design, conjugate sulfate reducing bacteria Mixed Microbes can be by six in uranium contaminated soil in implementation
Valency uranium is reduced and precipitated, and the U (IV) to precipitate will not migrate with the flowing of water body, workable,
It is particularly suitable for use in enterprise's production in caused uranium-bearing soil treatment, while the present apparatus can also apply to surrounding enviroment soil
In the improvement of pollution.
Brief description of the drawings
Fig. 1 is primary structure schematic diagram of the present utility model；
Fig. 2 is the vertical view state structural representation of the reaction unit in the utility model；
Fig. 3 is the side structure schematic view of the water leg in the utility model；
In figure：1. disintegrating machine/disintegrating machine;2. transmission belt;3. reaction unit;4. mesh transmission band;5. water leg;6. gather materials
Bucket;7. conveying worm;8. sludge wringing machine;9th, 10. pipeline;11. collecting-tank;12. overfall;13. material inlet;It is 14. anti-
Answer the top of device;15. agitating shaft;16. gas inlet pipe;17. puddler;18. chain;20. gas inlet pipe;21. dividing plate;22.
Water inlet pipe.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples：
Embodiment 1：It is a kind of to reduce the processing unit for repairing uranium contaminated soil, referring to Fig. 1 to Fig. 3；It includes having charging
Disintegrating machine/disintegrating machine 1 of mouth and discharging opening, in addition to a transmission belt 2, the feed end of the transmission belt 2 are arranged at disintegrating machine/powder
The lower section of discharging opening on pure machine 1；Also include a reaction unit 3, the reaction unit 3 has closed cavity volume, the reaction
Device 3 is provided with material inlet 13, and the material inlet 13 is provided with dismountable cover plate；The discharge end of the transmission belt is set
In the top of the material inlet 13；Agitating paddle is provided with the reaction unit 3, the bottom of reaction unit 3 is provided with material outlet, instead
Answer and water inlet pipe 22 is provided with the cavity volume in device 3, specifically, the water inlet pipe 22 is arranged at the top 14 of the reaction unit,
And the top in the cavity volume of reaction unit 3 is provided with the shower nozzle being connected with water inlet pipe.
Mesh transmission band 4 is additionally provided with below the material outlet of the bottom of reaction unit 3, the mesh transmission band 4 is set
In in water leg 5；The conveying worm 7 for also include an aggregate bin 6, connecting with the feed opening of the bottom of aggregate bin 6, in addition to a dirt
Mud wringing machine 8, the discharging opening of the conveying worm 7 connect with the mud inlet of sludge wringing machine 8；Also include a collecting-tank 11,
Discharge outlet on the water leg 11 and the sludge wringing machine 8 is connected by corresponding pipeline 9,10 with collecting-tank 11 respectively.
Specifically, the rectangular body structure of cavity volume in the reaction unit 3 in the design, and in the reaction unit 3
Cavity volume laterally set, the agitating paddle includes agitating shaft 15 and the puddler 17 that is fixed on agitating shaft 15；The reaction dress
Put and several interval setting agitating paddles, width side of the agitating shaft 15 along the reaction unit are provided with the cavity volume in 3
To setting；One end of several agitating shafts extends to the outside of reaction unit, and the end of two neighboring agitating shaft passes through
Chain 18 connects, and positioned at the connection corresponding with stirring motor of the end of one of agitating shaft on reaction unit one end.
Further, the bottom in the reaction unit in the design is additionally provided with gas inlet pipe 20, the gas inlet pipe
20 are provided with several air admission holes, and axial direction of the gas inlet pipe along the agitating shaft 15 is set, and the gas inlet pipe
The middle and lower part of two neighboring agitating shaft 15 is arranged at, the gas inlet pipe is connected by booster pump and outside noble gas source
Connect.
Further, the interior dividing plate 21 longitudinally disposed provided with several intervals of the collecting-tank in the design, adjacent two
Stillpot is formed between individual dividing plate 21, the height of the dividing plate 21 is less than the height of the water leg, anti-with pipeline junction
Overfall 12 is additionally provided with the upper portion side wall of water leg on direction.
Present apparatus repair process of the conjugate sulfate reducing bacteria Mixed Microbes realization to uranium contaminated soil in force, sulfate
Reducing bacteria Mixed Microbes are a kind of microorganisms of anaerobism；In implementation by uranium contaminated soil by disintegrating machine/disintegrating machine by bulk materials
Crushed or crushed, then uranium contaminated soil is sent into reaction unit by transmission belt, now, the stirring in reaction unit
Oar persistently stirs, and water inlet pipe conveys water into reaction unit, is afterwards pulpous state by the stirring of uranium contaminated soil, then, passes through gas
Inlet pipe to reaction unit it is defeated it is interior input inert gas by the oxygen in the oxygen and reaction unit in uranium contaminated soil by discharge, then
In the range of the pH value modulation 5.0-7.0 of uranium contaminated soil, then material inlet is covered by cover plate, realizes and fills reaction
Put it is interior form closed environment, and in backward reaction unit in add sulfate reducing bacteria Mixed Microbes and gentle agitation after stand 2-
3 day time, it can continue to be passed through a small amount of inert gas into reaction unit during standing, the uranium during standing
Hexavalent uranium in dye water is reduced to U (IV) sediment through sulfate reducing bacteria Mixed Microbes, after then being handled in reaction unit
Slurry be discharged into lower section mesh transmission band on, mesh transmission band send slurry after the partial moisture in slurry is filtered out
Enter in the aggregate bin at rear, progress water squeezing processing be then fed through in sludge wringing machine by conveying worm, through water leg and
The water of wringing machine discharge enters in collecting-tank, is carried out afterwards in the presence of each dividing plate in collecting-tank on after precipitation again
Secondary more clear water is discharged through overfall, and entering in reaction unit that the water discharged through this overfall can be again carries out circulation profit
With；So far, the reparation to uranium dirt soil can be completed.
What embodiment of the present utility model was announced is preferred embodiment, but is not limited thereto, the common skill of this area
Art personnel, easily according to above-described embodiment, understand spirit of the present utility model, and make different amplification and change, but as long as
Spirit of the present utility model is not departed from, all in the scope of protection of the utility model.
Claims (7)
1. a kind of reduce the processing unit for repairing uranium contaminated soil, it is characterised in that：It is included with charging aperture and discharging opening
Disintegrating machine/disintegrating machine, in addition to a transmission belt, the feed end of the transmission belt are arranged at the discharging opening on disintegrating machine/disintegrating machine
Lower section；Also include a reaction unit, the reaction unit has closed cavity volume, and the reaction unit enters provided with material
Mouthful, the material inlet is provided with dismountable cover plate；The discharge end of the transmission belt is arranged at the top of the material inlet；
Be provided with agitating paddle in the reaction unit, reaction unit bottom is provided with material outlet, provided with intaking in the cavity volume in reaction unit
Pipe；
Mesh transmission band is additionally provided with below the material outlet of the reaction unit bottom, the mesh transmission band is arranged at water leg
It is interior；The conveying worm for also include an aggregate bin, connecting with the feed opening of aggregate bin bottom, in addition to a sludge wringing machine, institute
The discharging opening for stating conveying worm connects with the mud inlet of sludge wringing machine；Also include a collecting-tank, the water leg and described
Discharge outlet on sludge wringing machine is connected by corresponding pipeline with collecting-tank respectively.
2. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 1, it is characterised in that：In the reaction unit
The rectangular body structure of cavity volume, and cavity volume in the reaction unit is laterally set.
3. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 2, it is characterised in that：The agitating paddle includes
Agitating shaft and the puddler being fixed on agitating shaft；It is provided with described in several interval settings and stirs in cavity volume in the reaction unit
Oar is mixed, width of the agitating shaft along the reaction unit is set；One end of several agitating shafts extends to reaction
The outside of device, and the end of two neighboring agitating shaft is connected by chain, and one of them is stirred on reaction unit one end
Mix the end connection corresponding with stirring motor of axle.
4. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 3, it is characterised in that：Set in the collecting-tank
There is the longitudinally disposed dividing plate in several intervals, stillpot is formed between two neighboring dividing plate, the height of the dividing plate is less than described
The height of water leg, overfall is provided with the upper portion side wall of the water leg in the reverse direction of pipeline junction.
5. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 4, it is characterised in that：In the reaction unit
Bottom be additionally provided with gas inlet pipe, the gas inlet pipe is provided with several air admission holes, and the gas inlet pipe is along the agitating shaft
Axial direction set, and the gas inlet pipe is arranged at the middle and lower part of two neighboring agitating shaft.
6. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 5, it is characterised in that：The gas inlet pipe leads to
Booster pump is crossed to be connected with external air source.
7. the processing unit of uranium contaminated soil is repaired in reduction as claimed in claim 6, it is characterised in that：The water inlet pipe is set
In the top of the reaction unit, and the top in reaction unit cavity volume is provided with the shower nozzle being connected with water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475105.1U CN206661920U (en) | 2017-05-02 | 2017-05-02 | The processing unit of uranium contaminated soil is repaired in reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720475105.1U CN206661920U (en) | 2017-05-02 | 2017-05-02 | The processing unit of uranium contaminated soil is repaired in reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206661920U true CN206661920U (en) | 2017-11-24 |
Family
ID=60370711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720475105.1U Expired - Fee Related CN206661920U (en) | 2017-05-02 | 2017-05-02 | The processing unit of uranium contaminated soil is repaired in reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206661920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515747A (en) * | 2022-01-21 | 2022-05-20 | 广西博世科环保科技股份有限公司 | Microorganism mineralization reaction system and method for non-ferrous metal smelting slag |
| CN116493395A (en) * | 2023-03-30 | 2023-07-28 | 中核第四研究设计工程有限公司 | Uranium tailings microorganism treatment device |
-
2017
- 2017-05-02 CN CN201720475105.1U patent/CN206661920U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114515747A (en) * | 2022-01-21 | 2022-05-20 | 广西博世科环保科技股份有限公司 | Microorganism mineralization reaction system and method for non-ferrous metal smelting slag |
| CN116493395A (en) * | 2023-03-30 | 2023-07-28 | 中核第四研究设计工程有限公司 | Uranium tailings microorganism treatment device |
| CN116493395B (en) * | 2023-03-30 | 2023-11-07 | 中核第四研究设计工程有限公司 | Uranium tailings microorganism treatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |