CN106710659A - Method for adsorbing uranyl in waste water with silicon dioxide composite - Google Patents
Method for adsorbing uranyl in waste water with silicon dioxide composite Download PDFInfo
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- CN106710659A CN106710659A CN201710021145.3A CN201710021145A CN106710659A CN 106710659 A CN106710659 A CN 106710659A CN 201710021145 A CN201710021145 A CN 201710021145A CN 106710659 A CN106710659 A CN 106710659A
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- waste water
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- dioxide composite
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000002351 wastewater Substances 0.000 title claims abstract description 41
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 25
- 235000012239 silicon dioxide Nutrition 0.000 title claims abstract description 25
- 125000005289 uranyl group Chemical group 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 26
- 238000001179 sorption measurement Methods 0.000 claims abstract description 25
- 239000003463 adsorbent Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 48
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 24
- 229910052770 Uranium Inorganic materials 0.000 claims description 23
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 claims description 23
- 229960001866 silicon dioxide Drugs 0.000 claims description 22
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000011259 mixed solution Substances 0.000 claims description 18
- 208000028659 discharge Diseases 0.000 claims description 16
- 235000006408 oxalic acid Nutrition 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 16
- 125000002252 acyl group Chemical group 0.000 claims description 12
- 239000002210 silicon-based material Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 14
- 229910052786 argon Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 229910052697 platinum Inorganic materials 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- WYICGPHECJFCBA-UHFFFAOYSA-N dioxouranium(2+) Chemical compound O=[U+2]=O WYICGPHECJFCBA-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 150000001298 alcohols Chemical class 0.000 description 2
- 238000009388 chemical precipitation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052901 montmorillonite Inorganic materials 0.000 description 2
- 208000019155 Radiation injury Diseases 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- -1 shitosan Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a method for adsorbing uranyl in waste water with a silicon dioxide composite. The method comprises the following steps that 1, a silicon dioxide material is utilized for carrying out normal pressure micro plasma discharging treatment, and therefore an adsorbent is prepared; 2, the waste water containing uranyl is adjusted till the pH ranges from 4 to 6.8, the adsorbent is put in the waste water, stirring and adsorbing are carried out for 36 h to 48 h, after filtering, filtrate is centrifugally treated to further separate solids in the waste water, and the solid particles are collected. The method is easy to operate, high in adsorption efficiency and good in waste water treatment effect, the adsorption effect can be monitored in real time, and good industrial practical prospects are achieved.
Description
Technical field
It is more particularly to a kind of to adsorb Uranium in Waste Water using silicon dioxide composite material the present invention relates to field of waste water treatment
The method of acyl.
Background technology
Uranium is a kind of natural radioactive element, is also important nuclear power source fuel, with very strong radiotoxicity.With core
Can it is growing, uranium-containing waste water is more and more, and these waste water such as deal with directly discharge improperly can be to the healthy product of the mankind
Raw greatly harm.Uranium is extracted from the waste water of uranium-bearing can be effectively reduced the pollution of uranium, can also improve the profit of uranium resource
With rate.So, from the angle and the double angle of raising uranium utilization rate of environmental protection, the uranium in waste water is extracted and is separated simultaneously
It is used with great practical value.
The processing method for the treatment of uranium-containing waste water more conventional at present is chemical precipitation method, ion-exchange, evaporation and concentration
Method and absorption method.Wherein chemical precipitation method has the advantages that handling process is simple, low cost, but not there is aqueous concentration easily not
Shortcoming up to standard；Ion-exchange have removing coefficient it is high, the good advantage of comprehensive removal effect, but processing procedure cost compared with
It is high；Evaporation concentration method equally has the shortcomings that high cost.Absorption method treatment uranium-bearing sewage has process is simple, and removal efficiency is high
Advantage, selects the key that suitable adsorbent is whole adsorption process.The clay pit species such as attapulgite, montmorillonite, montmorillonite
Material has loose structure and larger specific surface area is conventional sorbing material, the composite such as resin, shitosan, carbon material
Different functional groups can in the composite be introduced by design, the effective choosing for improving adsorbent to some specific ions
Selecting property, so as to improve the adsorption efficiency of material.
The method that Chinese patent CN201410657254.0 discloses uranyl ion in a kind of high efficiency extraction water, it is included such as
Lower step：The uranyl ion on sorbing material surface in advance absorption；The sorbing material input that uranyl ion will be in advance adsorbed with contains
In the waste water of uranyl ion, after stirring, filtered, collected filter residue.The invention has method simple, easy to operate under normal temperature, no
The advantages of introducing other impurity and environmental protection, economical and effective；But adsorption rate need to be improved.
The content of the invention
It is an object of the invention to provide a kind of method that utilization silicon dioxide composite material adsorbs Uranium in Waste Water acyl, the method
Simple to operate, adsorption efficiency is high, good waste water treatment effect；And can be with real-time monitoring adsorption effect, with good industrialization reality
Use prospect.
To achieve the above object, the present invention uses following technical scheme：
A kind of method that utilization silicon dioxide composite material adsorbs Uranium in Waste Water acyl, comprises the following steps：
(1) earth silicon material is distributed in the mixed solution of ethamine and oxalic acid, adds dispersant, add ultrasonic disperse
1-2h, is obtained suspension, and suspension is placed in reactor, carries out normal pressure microplasma discharge treatment, adjusts output current
It is 11-15mA, output voltage is 2500V-3000V, reacts 30min, after reaction terminates, filtering carries out solid particle to be centrifuged clearly
Wash repeatedly, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare adsorbent；
(2) it is 4-6.8 to adjust to pH the waste water containing uranyl, is added an adsorbent into wherein, stirring and adsorbing 36-48h, is filtered
Afterwards, filtrate centrifugal treating is further separated into the solid in waste water, collects solid particle.
Preferably, the earth silicon material is ordered mesoporous silicon-dioxide material.
Preferably, the earth silicon material is SBA-15 types, MCM-41 types or MSU-H type ordered mesoporous silica dioxide materials
One or more mixture in material.
Preferably, concentration of the earth silicon material in mixed solution is 3-8g/L.
Preferably, the mol ratio of the ethamine and oxalic acid is 1：(2-5), concentration of the ethamine in mixed solution is 40-
70g/L。
Preferably, the dispersant is lauryl sodium sulfate, methyl anyl alcohol, polyacrylamide or fatty acid polyglycol ethylene glycol
One or more mixture in ester.
Preferably, the dispersant and the mass ratio of earth silicon material are (1-2):10.
Preferably, adsorbent and the amount ratio of waste water are 0.6-1g/L in the adsorption process.
Wherein, in normal pressure microplasma discharge treatment operation, air-flow selection argon stream, gas velocity is 60-90mL/
Min, anode uses tunger tube, negative electrode to use platinum electrode.
The invention has the advantages that, by the way of carbon point modification earth silicon material, increased composite
While to the adsorption effect of uranyl, it is possible to use the fluorescence property of carbon point so that earth silicon material adsorbs the process of uranyl
Visualization, more preferable to adsorption process can control and have more intuitively research to its adsorption dynamics adsorption kinetics.The preparation of adsorbent
During prepared using normal pressure microplasma auxiliary one-step method and have the silicon dioxide composite material of carbon point, the method operation letter
It is single, it is swift in response, energy consumption is low, it is easy to mass produce.The adsorbent uranyl ion, is easier to be eluted, so that
Be conducive to the recycling of uranyl, effectively raise the service efficiency of uranium.
Specific embodiment
In order to be better understood from the present invention, below by embodiment, the present invention is further described, and embodiment is served only for solution
The present invention is released, any restriction will not be constituted to the present invention.
Embodiment 1
(1) 100mgSBA-15 type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 13mL ethamine and oxalic acid
In, 10mg lauryl sodium sulfate is added, ultrasonic disperse 1h is added, suspension is obtained, suspension is placed in reactor, carry out
The treatment of normal pressure microplasma discharge, regulation output current is 11mA, and output voltage is 2500V, reacts 30min, and reaction terminates
Afterwards, solid particle is carried out eccentric cleaning repeatedly by filtering, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare absorption
Agent；
(2) it is 4 to adjust to pH waste water of the 100mL containing uranyl, by 60mg adsorbents input wherein, stirring and adsorbing 36h, mistake
After filter, filtrate centrifugal treating is further separated into the solid in waste water, collect solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1：2, concentration of the ethamine in mixed solution is 40g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 60mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 60%.
Embodiment 2
(1) 100mgMCM-41 type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 33mL ethamine and oxalic acid
In, 20mg methyl anyl alcohols are added, ultrasonic disperse 2h is added, suspension is obtained, suspension is placed in reactor, carry out normal pressure micro-
Plasma discharge treatment, regulation output current is 15mA, and output voltage is 3000V, reacts 30min, after reaction terminates, filtering
By solid particle carry out eccentric cleaning repeatedly, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare adsorbent；
(2) it is 6.8 to adjust to pH waste water of the 100mL containing uranyl, by 100mg adsorbents input wherein, stirring and adsorbing
48h, after filtering, the solid in waste water is further separated by filtrate centrifugal treating, collects solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1:5, concentration of the ethamine in mixed solution is 70g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 90mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 72%.
Embodiment 3
(1) 100mg MSU-H type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 13mL ethamine and oxalic acid
In, 20mg polyacrylamides are added, ultrasonic disperse 1h is added, suspension is obtained, suspension is placed in reactor, carry out normal pressure
Microplasma discharge treatment, regulation output current is 15mA, and output voltage is 2500VV, reacts 30min, after reaction terminates,
Filtering by solid particle carry out eccentric cleaning repeatedly, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare adsorbent；
(2) it is 6.8 to adjust to pH waste water of the 100mL containing uranyl, by 60mg adsorbents input wherein, stirring and adsorbing 48h,
After filtering, filtrate centrifugal treating is further separated into the solid in waste water, collect solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1：2, concentration of the ethamine in mixed solution is 70g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 60mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 67%.
Embodiment 4
(1) 100mg MSU-H type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 33mL ethamine and oxalic acid
In, 10mg fatty acid polyethylene glycol esters are added, ultrasonic disperse 2h is added, suspension is obtained, suspension is placed in reactor, enter
The treatment of row normal pressure microplasma discharge, regulation output current is 11mA, and output voltage is 3000V, reacts 30min, reaction knot
Solid particle is carried out eccentric cleaning repeatedly by Shu Hou, filtering, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare absorption
Agent；
(2) it is 4 to adjust to pH waste water of the 100mL containing uranyl, by 100mg adsorbents input wherein, stirring and adsorbing 36h,
After filtering, filtrate centrifugal treating is further separated into the solid in waste water, collect solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1：5, concentration of the ethamine in mixed solution is 40g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 90mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 78%.
Embodiment 5
(1) 100mgSBA-15 type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 21mL ethamine and oxalic acid
In, 15mg polyacrylamides are added, ultrasonic disperse 2h is added, suspension is obtained, suspension is placed in reactor, carry out normal pressure
Microplasma discharge treatment, regulation output current is 12mA, and output voltage is 2800V, reacts 30min, after reaction terminates, mistake
Filter by solid particle carry out eccentric cleaning repeatedly, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare adsorbent；
(2) it is 5 to adjust to pH waste water of the 100mL containing uranyl, by 80mg adsorbents input wherein, stirring and adsorbing 48h, mistake
After filter, filtrate centrifugal treating is further separated into the solid in waste water, collect solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1:3, concentration of the ethamine in mixed solution is 60g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 72mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 68%.
Embodiment 6
(1) 100mgMCM-41 type ordered mesoporous silicon-dioxide materials are distributed to the mixed solution of 29mL ethamine and oxalic acid
In, 12mg methyl anyl alcohols are added, ultrasonic disperse 1h is added, suspension is obtained, suspension is placed in reactor, carry out normal pressure micro-
Plasma discharge treatment, regulation output current is 12mA, and output voltage is 2900V, reacts 30min, after reaction terminates, filtering
By solid particle carry out eccentric cleaning repeatedly, then with washes of absolute alcohol 3 times after, vacuumize drying, prepare adsorbent；
(2) it is 6 to adjust to pH waste water of the 100mL containing uranyl, by 60-100mg adsorbents input wherein, stirring and adsorbing
36h, after filtering, the solid in waste water is further separated by filtrate centrifugal treating, collects solid particle.
Wherein the mol ratio of ethamine and oxalic acid is 1:4, concentration of the ethamine in mixed solution is 60g/L.The micro- grade of normal pressure from
In the operation of daughter discharge process, air-flow selection argon stream, gas velocity is 80mL/min, and anode uses tunger tube, negative electrode to adopt
Use platinum electrode.
In the adsorption process, the adsorption efficiency of uranyl is 72%.
Claims (8)
1. a kind of method that utilization silicon dioxide composite material adsorbs Uranium in Waste Water acyl, it is characterised in that：Comprise the following steps：
(1) earth silicon material is distributed in the mixed solution of ethamine and oxalic acid, adds dispersant, add ultrasonic disperse 1-
2h, is obtained suspension, and suspension is placed in reactor, carries out normal pressure microplasma discharge treatment, and regulation output current is
11-15mA, output voltage is 2500V-3000V, reacts 30min, and after reaction terminates, solid particle is carried out eccentric cleaning by filtering
Repeatedly, after then with washes of absolute alcohol 3 times, drying is vacuumized, prepares adsorbent；
(2) it is 4-6.8 to adjust to pH the waste water containing uranyl, is added an adsorbent into wherein, stirring and adsorbing 36-48h, after filtering,
Filtrate centrifugal treating is further separated into the solid in waste water, solid particle is collected.
2. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
The earth silicon material is ordered mesoporous silicon-dioxide material.
3. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
The earth silicon material is the one kind or many in SBA-15 types, MCM-41 types or MSU-H type ordered mesoporous silicon-dioxide materials
Plant mixture.
4. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
Concentration of the earth silicon material in mixed solution is 3-8g/L.
5. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
The mol ratio of the ethamine and oxalic acid is 1：(2-5), concentration of the ethamine in mixed solution is 40-70g/L.
6. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
The dispersant is the one kind or many in lauryl sodium sulfate, methyl anyl alcohol, polyacrylamide or fatty acid polyethylene glycol ester
Plant mixture.
7. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
The dispersant is (1-2) with the mass ratio of earth silicon material:10.
8. the method that utilization silicon dioxide composite material according to claim 1 adsorbs Uranium in Waste Water acyl, it is characterised in that：
Adsorbent and the amount ratio of waste water are 0.6-1g/L in the adsorption process.
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| CN109727695A (en) * | 2017-10-30 | 2019-05-07 | 中核四0四有限公司 | A kind of abrading-ball stains the cleaning and recovery method of MOX powder |
| CN112967828A (en) * | 2021-02-01 | 2021-06-15 | 南华大学 | Uranium-containing wastewater treatment device and uranium-containing wastewater treatment method |
| CN112967828B (en) * | 2021-02-01 | 2022-09-30 | 南华大学 | Uranium-containing wastewater treatment device and uranium-containing wastewater treatment method |
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