CN106710660B - Solidification absorption and Magneto separate reactor assembly for radioactive pollution soil remediation - Google Patents
Solidification absorption and Magneto separate reactor assembly for radioactive pollution soil remediation Download PDFInfo
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- CN106710660B CN106710660B CN201611138609.0A CN201611138609A CN106710660B CN 106710660 B CN106710660 B CN 106710660B CN 201611138609 A CN201611138609 A CN 201611138609A CN 106710660 B CN106710660 B CN 106710660B
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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
- G21F9/28—Treating solids
- G21F9/30—Processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0225—Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt
- B01J20/0229—Compounds of Fe
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
- B01J20/28009—Magnetic properties
-
- 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
- G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
-
- 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
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
Abstract
The invention discloses the solidification absorption for radioactive pollution soil remediation and Magneto separate reactor assembly.The system is made up of sample feeding pipe, ring electromagnet, platform, support column, outlet, controlled valve, combined contamination soil, agitating shaft, stirring vane, annular water distributor, reactor and stirring motor.Sample feeding pipe is located at reactor top;Ring electromagnet is located at the periphery of reactor wall;Support column is located at the bottom of platform;Outlet is located at reactor bottom, and controlled valve is installed on outlet;Annular water distributor is located on the inwall of reactor;Stirring vane is fixed on agitating shaft, and agitating shaft is connected with stirring motor;Filling is 1 by soil solidification adsorbent and the combined contamination soil of radioactive pollution soil constitution, the wherein mass ratio of soil solidification adsorbent and radioactive pollution soil in reactor:75.The invention has the advantages that cost is low when the system is to radioactive pollution soil remediation, simple to operate, high treating effect.
Description
Technical field
It is more particularly to a kind of to be used for radioactive pollution the invention belongs to radionuclide contamination reparation and Treatment process field
The solidification absorption of soil remediation and Magneto separate reactor assembly.
Background technology
Radioactive pollution soil remediation is extremely complex global problem, and after Fukushima, Japan nuclear accident occurs, process is several
Year reparation, contaminated area radiation intensity is far from the average level for reaching 20mSv.The routine of radioactive pollution soil remediation
Method mainly has mechanical carrying method, hyperaccumulative plant absorption process, chemical leaching test, biological prosthetic and Natural Attenuation null method etc..
Mechanical handing method is to use big machinery and equipment, roots out the materials such as earth's surface contaminated soil, is taken after being transferred to specified place
The methods of burning, solidify, burying is handled, and radioactive substance is isolated, and this method quantities is big, and in transfer process
Equipment can be polluted, it is also possible to which radioactive pollution further spreads caused by shedding and leaking etc.;Chemical leaching test for
Small-scale radioactive pollution processing is proper, but its processing cost is expensive and is also easy to produce secondary pollution;Hyperaccumulative plant
Absorption process is to be the shortcomings that this method to carrying out burning disposal to plant after the high-selectivity enrichment of radionuclide by plant
Long processing period.With extensive use of the nuclear technology in production, life, radionuclide is as most important potential in environment
Nuclear pollution thing receives significant attention, and it is hot to seek the research that the recovery technique of efficient Soil Contaminated with Radionuclides turns into recent years
Point.Also lack the solidification absorption for radioactive pollution soil remediation and Magneto separate reactor assembly at present.
The content of the invention
It is an object of the invention to provide a kind of solidification absorption for radioactive pollution soil remediation and Magneto separate reactor
System.It is comprised the following steps that:
Solidification absorption is with Magneto separate reactor assembly by sample feeding pipe (1), ring electromagnet (2), platform (3), support column
(4), outlet (5), controlled valve (6), combined contamination soil (7), agitating shaft (8), stirring vane (9), annular water distributor
(10), reactor (11) and stirring motor (12) composition;The distance on sample feeding pipe (1) to reactor (11) top is 25cm, sample introduction
It is 30 degree that (1), which is managed, with horizontal angle;Ring electromagnet (2) is located at the periphery of reactor wall (11), is pushed up to reactor (11)
End distance is 30cm;Support column (4) is located at the bottom of platform (3), for supporting reactor (11);Outlet (5) is positioned at reaction
Device (11) bottom, controlled valve (6) is installed on outlet (5), for controlling the discharge of soil;Annular water distributor (10) is located at
On the inwall of reactor (11), annular water distributor (10) to reactor (11) top distance is 20cm;Stirring vane (9) is fixed on
On agitating shaft (8), agitating shaft (8) is connected with stirring motor (12);Filling combined contamination soil (7) in reactor (11), will be multiple
It is 5cm to close contaminated soil (7) and be filled to the distance of sample feeding pipe (1) bottom;Combined contamination soil (7) is by soil solidification adsorbent
With radioactive pollution soil constitution, the wherein mass ratio of soil solidification adsorbent and radioactive pollution soil is 1:75.
The soil solidification adsorbent is prepared by the following method:
(1) 250mL deionized waters are added in the three-necked flask that volume is 1000mL, it is 75 DEG C to be then put into temperature
In thermostat water bath, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionization
Water A;
(2) 0.0625mol CoCl is added into deionized water A2·6H2O, 15 points are stirred under the conditions of 1000r/min
Clock, obtain solution A 1;
(3) 250mL deionized waters are added in the three-necked flask that volume is 1000mL, it is 75 DEG C to be then put into temperature
In thermostat water bath, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionization
Water B;
(4) 0.125mol FeCl is added into deionized water B3·6H2O, stirred 15 minutes under the conditions of 1000r/min,
Obtain solution B 1;
(5) solution A 1 is added in solution B 1, is shaken 30 minutes in the shaking table that temperature is 80 DEG C, obtain mixed liquor C;
(6) 150mg NaOH is added into mixed liquor C, is then put into the thermostat water bath that temperature is 75 DEG C, in gas
Flow velocity is passed through nitrogen into mixed liquor 120 minutes under conditions of being 130L/h, obtains mixed liquor D;
(7) 150mL deionized waters are added into mixed liquor D, magnet is used after stirring 15min under the conditions of 1000r/min
Magneto separate is carried out, abandoning supernatant, obtains mixture E;
(8) 250mL ethanol is added into mixture E, is carried out after 15min is stirred under the conditions of 1000r/min using magnet
Magneto separate, abandoning supernatant, obtain mixture F;
(9) 250mL ethanol is added into mixture F, is carried out after 15min is stirred under the conditions of 1000r/min using magnet
Magneto separate, abandoning supernatant, obtain mixture G;
(10) mixture G is dried into 12h under the conditions of 60 DEG C, obtains material H;
(11) 50g ca-montmorillonites are added to the NH that 200mL molar concentrations are 1.2mol/L4In Cl solution, in temperature
To be shaken 12 hours in 30 DEG C of shaking tables, mixed liquor I is obtained;
(12) ammoniacal liquor that 10mL mass concentrations are 22% is added in mixed liquor I, then adds the ethoxy of 1.55g ethyls three
Base silane, 4h is stirred under the conditions of 1000r/min, obtain mixed liquor J;
(12) mixed liquor J is centrifuged into 5min under conditions of rotating speed is 7000 turn per minute, upper strata supernatant is removed, by under
Layer solid matter dries 24h under the conditions of 60 DEG C, obtains material K;
(13) it is in 1000mL conical flasks, in 1000r/ 6.0g sodium alginates and 600mL deionized waters to be added into volume
Stirred 15 minutes under the conditions of min, 2 parts of equivalent is divided into after shaking up, obtain mixed liquor L1, mixed liquor L2;
(14) 5.0g material H are added into mixed liquor L1,4h is stirred under the conditions of 1000r/min, obtains mixed liquor M1;
(15) 1.2g methyl silicates are added in mixed liquor M1,4h is stirred under the conditions of 1000r/min, mixed
Liquid N1;
(16) 15.0g material K are added into mixed liquor L2,4h is stirred under the conditions of 1000r/min, obtains mixed liquor M2;
(17) 1.8g MTMSs are added in mixed liquor M2,4h is stirred under the conditions of 1000r/min, obtained
To mixed liquor N2;
(18) mixed liquor N2 is added in mixed liquor N1, shakes 120 minutes, mixed in the shaking table that temperature is 35 DEG C
Close liquid N;
(19) mixed liquor N is added dropwise to the CaCl that 1000mL mass concentrations are 2%2In solution, pass through aperture after static 12h
For 5mm strainer filtering, material O is obtained;
(20) 12h is dried after material O is cleaned with deionized water in 50 DEG C of baking ovens, obtained material is soil solidification
Adsorbent.
The invention has the advantages that when the solidification absorption and Magneto separate reactor assembly are to radioactive pollution soil remediation
Cost is low, simple to operate, high treating effect.
Brief description of the drawings
Accompanying drawing 1 is the solidification absorption and the schematic diagram of Magneto separate reactor assembly for radioactive pollution soil remediation.It is attached
1 it is sample feeding pipe in Fig. 1,2 be ring electromagnet, 3 be platform, 4 be support column, 5 be outlet, 6 be controlled valve, 7 is compound
Contaminated soil, 8 be agitating shaft, 9 be stirring vane, 10 be annular water distributor, 11 be reactor, 12 be stirring motor.
Embodiment
The present invention provides a kind of solidification absorption for radioactive pollution soil remediation and Magneto separate reactor assembly, below
Illustrate to apply process in fact by an example.
Embodiment
(1) the solidification absorption for radioactive pollution soil remediation is as follows with the preparation process of Magneto separate reactor assembly:
Solidification absorption and the reactor of Magneto separate reactor assembly are made of lucite, and its a diameter of 45cm is a height of
95cm.A height of 20cm of support column, the bottom of platform is installed on, for supporting reactor.Sample feeding pipe is located at the top of reactor,
Distance to reactor top is 25cm, and sample feeding pipe and horizontal angle are 30 degree.Outlet is located at reactor bottom, is going out
Controlled valve is installed on sample mouth, for controlling the discharge of soil.Annular water distributor is installed on the inwall of reactor, annular cloth
Water pipe to reactor top distance be 20cm.Ring electromagnet is located at the periphery of reactor wall, is to reactor top distance
30cm.Stirring vane is fixed on agitating shaft, and agitating shaft is connected with stirring motor.According to soil solidification adsorbent and put
Radioactive pollution soil quality ratio is 1:75 ratio prepares combined contamination soil, and combined contamination soil is added to reaction by sample feeding pipe
In device, it is 5cm that combined contamination soil, which is filled to the distance of sample introduction bottom of the tube,.
(2) soil solidification adsorbent is prepared by following process:
250mL deionized waters are added in the three-necked flask that volume is 1000mL, are then put into the perseverance that temperature is 75 DEG C
In warm water bath, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionized water
A;0.0625mol CoCl is added into deionized water A2·6H2O, stirred 15 minutes under the conditions of 1000r/min, obtain solution
A1;250mL deionized waters are added in the three-necked flask that volume is 1000mL, are then put into the water bath with thermostatic control that temperature is 75 DEG C
In pot, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionized water B;To going
0.125mol FeCl is added in ionized water B3·6H2O, stirred 15 minutes under the conditions of 1000r/min, obtain solution B 1;Will be molten
Liquid A1 is added in solution B 1, is shaken 30 minutes in the shaking table that temperature is 80 DEG C, is obtained mixed liquor C;Added into mixed liquor C
150mg NaOH, then it is put into the thermostat water bath that temperature is 75 DEG C, to mixing under conditions of gas flow rate is 130L/h
Nitrogen is passed through in liquid 120 minutes, obtains mixed liquor D;150mL deionized waters are added into mixed liquor D, in 1000r/min conditions
Magneto separate is carried out using magnet after lower stirring 15min, abandoning supernatant, obtains mixture E;250mL second is added into mixture E
Alcohol, use magnet to carry out Magneto separate after 15min is stirred under the conditions of 1000r/min, abandoning supernatant, obtain mixture F;To mixed
250mL ethanol is added in compound F, uses magnet to carry out Magneto separate, supernatant discarding after 15min is stirred under the conditions of 1000r/min
Liquid, obtain mixture G;Mixture G is dried into 12h under the conditions of 60 DEG C, obtains material H;
50g ca-montmorillonites are added to the NH that 200mL molar concentrations are 1.2mol/L4It is 30 in temperature in Cl solution
DEG C shaking table in shake 12 hours, obtain mixed liquor I;The ammoniacal liquor that 10mL mass concentrations are 22% is added in mixed liquor I, so
1.55g ethyl triethoxysilanes are added afterwards, and 4h is stirred under the conditions of 1000r/min, obtains mixed liquor J;Mixed liquor J is being turned
Speed centrifuges 5min under conditions of being 7000 turns per minute, removes upper strata supernatant, and lower floor's solid matter is done under the conditions of 60 DEG C
Dry 24h, obtain material K;
It is in 1000mL conical flasks, in 1000r/min bars that 6.0g sodium alginates and 600mL deionized waters are added into volume
Stirred 15 minutes under part, 2 parts of equivalent is divided into after shaking up, obtain mixed liquor L1, mixed liquor L2;5.0g things are added into mixed liquor L1
Matter H, stirs 4h under the conditions of 1000r/min, obtains mixed liquor M1;1.2g methyl silicates are added in mixed liquor M1,
4h is stirred under the conditions of 1000r/min, obtains mixed liquor N1;15.0g material K are added into mixed liquor L2, in 1000r/min conditions
Lower stirring 4h, obtains mixed liquor M2;1.8g MTMSs are added in mixed liquor M2, in 1000r/min conditions
Lower stirring 4h, obtains mixed liquor N2;Mixed liquor N2 is added in mixed liquor N1,120 are shaken in the shaking table that temperature is 35 DEG C
Minute, obtain mixed liquor N;Mixed liquor N is added dropwise to the CaCl that 1000mL mass concentrations are 2%2In solution, lead to after static 12h
The strainer filtering that aperture is 5mm is crossed, obtains material O;
12h is dried after material O is cleaned with deionized water in 50 DEG C of baking ovens, obtained material is soil solidification absorption
Agent.
(3) experiment is administered
The solidification absorption obtained with the present invention is administered with Magneto separate reactor assembly to radioactive pollution soil
Experiment, the results showed that the system can effectively remove the caesium in contaminated soil, when the caesium initial content in contaminated soil is
During 112mg/kg, the caesium after processing in soil can be reduced to 11mg/kg.
Claims (1)
1. a kind of solidification absorption for radioactive pollution soil remediation and Magneto separate reactor assembly, it is characterised in that this is
System is by sample feeding pipe, ring electromagnet, platform, support column, outlet, controlled valve, combined contamination soil, agitating shaft, paddle
Piece, annular water distributor, reactor and stirring motor composition;Sample feeding pipe to the distance of reactor top be 25cm, sample feeding pipe and water
The angle of horizontal line is 30 degree;Ring electromagnet is located at the periphery of reactor wall, is 30cm to reactor top distance;Support column position
In the bottom of platform, for supporting reactor;Outlet is located at reactor bottom, and controlled valve is installed on outlet, is used for
Control the discharge of soil;Annular water distributor is located on the inwall of reactor, and annular water distributor to reactor top distance is 20cm;
Stirring vane is fixed on agitating shaft, and agitating shaft is connected with stirring motor;Filling combined contamination soil in reactor, by compound dirt
It is 5cm that dye soil, which is filled to the distance of sample introduction bottom of the tube,;Combined contamination soil is by soil solidification adsorbent and radioactive pollution
Soil constitution, the wherein mass ratio of soil solidification adsorbent and radioactive pollution soil are 1:75;The soil solidification adsorbent
Prepare by the following method:
(1) 250mL deionized waters are added in the three-necked flask that volume is 1000mL, are then put into the constant temperature that temperature is 75 DEG C
In water-bath, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionized water A;
(2) 0.0625mol CoCl is added into deionized water A2·6H2O, stir 15 minutes, obtain under the conditions of 1000r/min
To solution A 1;
(3) 250mL deionized waters are added in the three-necked flask that volume is 1000mL, are then put into the constant temperature that temperature is 75 DEG C
In water-bath, it is passed through into three-necked flask nitrogen 35 minutes under conditions of gas flow rate is 130L/h, obtains deionized water B;
(4) 0.125mol FeCl is added into deionized water B3·6H2O, stir 15 minutes, obtain under the conditions of 1000r/min
Solution B 1;
(5) solution A 1 is added in solution B 1, is shaken 30 minutes in the shaking table that temperature is 80 DEG C, obtain mixed liquor C;
(6) 150mg NaOH is added into mixed liquor C, is then put into the thermostat water bath that temperature is 75 DEG C, in gas flow rate
To be passed through nitrogen under conditions of 130L/h into mixed liquor 120 minutes, mixed liquor D is obtained;
(7) 150mL deionized waters are added into mixed liquor D, are carried out after 15min is stirred under the conditions of 1000r/min using magnet
Magneto separate, abandoning supernatant, obtain mixture E;
(8) 250mL ethanol is added into mixture E, is divided after 15min is stirred under the conditions of 1000r/min using magnet progress magnetic
From abandoning supernatant, obtaining mixture F;
(9) 250mL ethanol is added into mixture F, is divided after 15min is stirred under the conditions of 1000r/min using magnet progress magnetic
From abandoning supernatant, obtaining mixture G;
(10) mixture G is dried into 12h under the conditions of 60 DEG C, obtains material H;
(11) 50g ca-montmorillonites are added to the NH that 200mL molar concentrations are 1.2mol/L4It it is 30 DEG C in temperature in Cl solution
Shaking table in shake 12 hours, obtain mixed liquor I;
(12) ammoniacal liquor that 10mL mass concentrations are 22% is added in mixed liquor I, then adds 1.55g ethyl triethoxy silicanes
Alkane, 4h is stirred under the conditions of 1000r/min, obtain mixed liquor J;
(12) mixed liquor J is centrifuged into 5min under conditions of rotating speed is 7000 turn per minute, removes upper strata supernatant, lower floor is consolidated
Body material dries 24h under the conditions of 60 DEG C, obtains material K;
(13) it is in 1000mL conical flasks, in 1000r/min bars 6.0g sodium alginates and 600mL deionized waters to be added into volume
Stirred 15 minutes under part, 2 parts of equivalent is divided into after shaking up, obtain mixed liquor L1, mixed liquor L2;
(14) 5.0g material H are added into mixed liquor L1,4h is stirred under the conditions of 1000r/min, obtains mixed liquor M1;
(15) 1.2g methyl silicates are added in mixed liquor M1,4h is stirred under the conditions of 1000r/min, obtain mixed liquor
N1;
(16) 15.0g material K are added into mixed liquor L2,4h is stirred under the conditions of 1000r/min, obtains mixed liquor M2;
(17) 1.8g MTMSs are added in mixed liquor M2,4h is stirred under the conditions of 1000r/min, mixed
Close liquid N2;
(18) mixed liquor N2 is added in mixed liquor N1, is shaken 120 minutes in the shaking table that temperature is 35 DEG C, obtain mixed liquor
N;
(19) mixed liquor N is added dropwise to the CaCl that 1000mL mass concentrations are 2%2By aperture it is 5mm after static 12h in solution
Strainer filtering, obtain material O;
(20) 12h is dried after material O is cleaned with deionized water in 50 DEG C of baking ovens, obtained material is soil solidification absorption
Agent.
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CN109967030A (en) * | 2017-12-27 | 2019-07-05 | 上海绅涪生物科技有限公司 | A kind of ammonia nitrogen absorption material and preparation method thereof |
CN114130804A (en) * | 2021-11-29 | 2022-03-04 | 北京师范大学 | Chemical cleaning reactor system for cleaning, decontaminating and repairing radioactive contaminated soil |
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CN105126743A (en) * | 2015-08-20 | 2015-12-09 | 南京航空航天大学 | Preparation and recovery methods for magnetic clay adsorption material |
CN105381780A (en) * | 2015-12-07 | 2016-03-09 | 中国科学院生态环境研究中心 | Magnetic absorbent for removing arsenic and antimony through adsorption-superconducting magnetic separating and preparation method thereof |
CN105632575A (en) * | 2016-01-29 | 2016-06-01 | 北京师范大学 | Hydroxyl-based modified magnetic material with radionuclide adsorption function and preparation method |
CN105727879A (en) * | 2016-01-29 | 2016-07-06 | 环境保护部核与辐射安全中心 | Adsorption material with cesium adsorption and solidification functions and preparation method |
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JP2016090556A (en) * | 2014-11-11 | 2016-05-23 | モリノ商事株式会社 | Treatment system for radioactive contaminated water |
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US5322644A (en) * | 1992-01-03 | 1994-06-21 | Bradtec-Us, Inc. | Process for decontamination of radioactive materials |
CN105126743A (en) * | 2015-08-20 | 2015-12-09 | 南京航空航天大学 | Preparation and recovery methods for magnetic clay adsorption material |
CN105381780A (en) * | 2015-12-07 | 2016-03-09 | 中国科学院生态环境研究中心 | Magnetic absorbent for removing arsenic and antimony through adsorption-superconducting magnetic separating and preparation method thereof |
CN105632575A (en) * | 2016-01-29 | 2016-06-01 | 北京师范大学 | Hydroxyl-based modified magnetic material with radionuclide adsorption function and preparation method |
CN105727879A (en) * | 2016-01-29 | 2016-07-06 | 环境保护部核与辐射安全中心 | Adsorption material with cesium adsorption and solidification functions and preparation method |
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