CN110203995A - A kind of thallium pollution deeply-curing agent and the preparation method and application thereof - Google Patents
A kind of thallium pollution deeply-curing agent and the preparation method and application thereof Download PDFInfo
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- CN110203995A CN110203995A CN201910532842.4A CN201910532842A CN110203995A CN 110203995 A CN110203995 A CN 110203995A CN 201910532842 A CN201910532842 A CN 201910532842A CN 110203995 A CN110203995 A CN 110203995A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Abstract
The present invention provides a kind of thallium pollution deeply-curing agent and the preparation method and application thereof.The preparation method of the thallium pollution deeply-curing agent obtains active silicic acid aluminium salt material the following steps are included: siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent are uniformly mixed by (1) after being roasted；(2) water and oxidant are added into active silicic acid aluminium salt material, is uniformly mixed, obtained slurry is dried, is crushed, thallium pollution deeply-curing agent is obtained.Thallium pollution deeply-curing agent obtained by this method is applied in the improvement of thallium pollution, the agent of thallium pollution deeply-curing can and the compound of thallium and thallium stable combination occurs, form indissoluble substance, achieve the effect that it is efficient, permanent, steadily solidify pollution sources thallium.
Description
Technical field
The invention belongs to heavy metal processing technology fields more particularly to a kind of thallium pollution deeply-curing agent and preparation method thereof
With application.
Background technique
Thallium (Tl) is one of III A race element of the 6th period in the periodic table of elements, rare and scatter element, average content is belonged in the earth's crust
About 1mg/kg.Thallium simple substance is the silvery white ductile metal of bit bluish, and not soluble in water and aqueous slkali is soluble in acid solution.Thallium
It is a kind of accompanying element, hardly individually at mine, unique independent thallium mine is in Guizhou In China province Xingren County, main component in the world
It is red thallium, it is other to be present in the sulphur mine of the metals such as lead, zinc, iron, copper with dispersity homomorphism impurity mostly, commonly use these gold
Belong to the byproduct of smelting to recycle and extract.
Thallium has been more than lead and mercury to the toxicity of human body, is similar to arsenic.Thallium is human body Non-necessary Trace Elements, can pass through drink
Water, food, breathing and enter human body and be enriched with, the compound of thallium has mutagenicity, carcinogenicity and teratogenesis, can induce food
A variety of diseases such as road cancer, liver cancer, colorectal cancer occur, and threaten human health greatly.Thallium can also and cell membrane surface
Na-K-ATP (atriphos) enzyme competitive binding enter intracellular, the group containing sulfydryl is combined with mitochondrial surface, inhibits its oxygen
Change Phosphorylation events, interfere Metabolism of Sulfur-Containing Amino Acids, inhibits cell mitogen and the growth of hair follicle cuticula.Meanwhile thallium can be with
Vitamin B2 and vitamin B2 assist enzyme effect, destroy calcium in the intracorporal balance of people.
In recent years, since a lot of events in relation to thallium poisoning have occurred, promote State Environmental Protection Administration that thallium is included in ring
Border priority pollutant blacklist, and thallium waste water is provided in " inorganic chemistry emission of industrial pollutants standard " (GB31573-2015)
Limited value of discharge standard is 5 μ g/L.
The process for removing thallium such as ion-exchange, extraction, natural evaporation method and chemical precipitation method processing thallium is generallyd use at present
Pollutant effluents, but these treatment process have the problems such as process is cumbersome, treatment effeciency is low, processing cost is high, and be difficult to by
Thallium element is handled below the mark to safety dumping in waste water, and thallium element still severely exceeds in efflux wastewater, causes surface water river
The thallium pollution problem of section is serious, constitutes a serious threat safely to water hygiene.And chemical precipitation method is predominantly first led to
It crosses plus alkali adjusts pH value, oxidant (such as permanganate, liquid chlorine, ferrate, hydrogen peroxide) is recycled to be oxidized to monovalence thallium
Then trivalent thallium is removed by absorption, precipitating, filtering；Although this technique can reduce thallium in waste water to a certain extent
The content of element, but while being handled with the technique, need to add a large amount of alkali and adjust pH value, and adds a large amount of flocculants and carry out
Absorption, reagent consumption amount is big, and processing cost is high, and liquid oxidizer is easily revealed, using the inconvenience that operates, on the whole not
Conducive to popularization and use.
Therefore, it needs to research and develop novel depth except thallium agent, in quickly removal waste water while thallium, and state can be reached
As defined in family " integrated wastewater discharge standard ", and it can avoid secondary pollution.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, provide one
Kind thallium pollution deeply-curing agent, the thallium pollution deeply-curing agent can be carried out with Tl in solution or the thallium compound of other forms
Ionic adsorption or exchange form indissoluble object precipitating with thallium element stable bond, while also providing the thallium pollution deeply-curing agent
Preparation method and application.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of thallium pollution deeply-curing agent, with solubility in citric acid SiO in the thallium pollution deeply-curing agent2Effective silicon of meter contains
Amount >=20wt%, calcium and magnesium resultant >=30wt% in terms of CaO and MgO, with Fe2O3And MnO2The ferrimanganic resultant of meter be 1.8~
5.5wt%, with Al2O3Alumina content >=6.4wt% of meter, CEC capacity >=54cmol/kg, pH value are 9~11, alkaline condition
Under to saturated extent of adsorption >=1g/kg of thallium.
The inventive concept total as one, the present invention also provides a kind of preparation sides such as above-mentioned thallium pollution deeply-curing agent
Method, comprising the following steps:
(1) siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent are uniformly mixed, active silicic acid aluminium salt material is obtained after being roasted
Material；
(2) water and oxidant are added into active silicic acid aluminium salt material, is uniformly mixed, obtained slurry is dried,
It crushes, obtains thallium pollution deeply-curing agent.
The present invention obtains active silicic acid after high-temperature roasting is activated using siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent
Aluminium salt material, active silicic acid aluminium salt material can decompose in aqueous solution separates out silicate and aluminate, the silicate that dissociates,
Aluminate can interact to form a kind of active silicic acid aluminium salt absorption with multiple hole high surface area with aluminium silicate salt material
Material；After the aqueous solution of oxidant investment active silicic acid aluminium salt material, the active silicic acid aluminium salt adsorption material that is formed in aqueous solution
Material can adsorb oxidant on the surface of the material, and material is made to have both strong oxidizing property while having strong adsorptivity, final through dry
A kind of thallium pollution deeply-curing agent has been obtained after dry.
Above-mentioned preparation method, it is preferred that described in order to improve the ability that the agent of thallium pollution deeply-curing solidifies pollution sources thallium
The mass ratio of siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent is (10~20): (12~35): 1；The active silicic acid aluminium salt material
Mass ratio with oxidant is (9~19): 1；The mass ratio of the active silicic acid aluminium salt material and water is 10:(1~10).
Above-mentioned preparation method, it is preferred that in order to guarantee the agent of thallium pollution deeply-curing to the strong adsorptivity of pollution sources thallium, institute
State SiO in siulica-alumina mineral2Content be 60~80wt%, Al2O3Content be 10~20wt%；The siulica-alumina mineral is feldspar
Class aluminosilicate mineral and/or clay class aluminosilicate mineral；It is furthermore preferred that the siulica-alumina mineral is bauxite, quartz, black clouds
At least one of mother, chlorite, feldspar, green bean rock and illite.
Above-mentioned preparation method, it is preferred that the total content of CaO and MgO is 40~60wt% in the calcium and magnesium adjuvant；Institute
Stating calcium and magnesium adjuvant is at least one of lime stone, quick lime, calcium hydroxide, magnesite, dolomite, magnesium sulfate.Calcium and magnesium auxiliary
Agent has activation, can activate siulica-alumina mineral.
Above-mentioned preparation method, it is preferred that by siulica-alumina mineral, the mixture of calcium and magnesium adjuvant and fluxing agent after mixing
It is first ground and is roasted again, the granularity of mixture is+1500 mesh to -60 mesh after grinding.It is furthermore preferred that mixture after grinding
Granularity be+1500 mesh to -100 mesh.
Above-mentioned preparation method, it is preferred that the fluxing agent is containing sodium raw materials and/or raw material containing potassium, the addition of fluxing agent
Maturing temperature can be reduced；It is described containing sodium raw materials be sodium sulphate, sodium oxide molybdena, sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium chloride,
At least one of sodium nitrate, saltcake；The raw material containing potassium is potassium sulfate, potassium oxide, potassium hydroxide, potassium carbonate, potassium chloride, nitre
At least one of sour potassium；The oxidant be potassium ferrate, Na2Fe04, potassium permanganate, sodium permanganate, in manganese dioxide extremely
Few one kind.
Above-mentioned preparation method, it is preferred that in order to guarantee the melting mixing effect of siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent
Fruit improves the comprehensive performance of thallium pollution deeply-curing agent, and the temperature of the roasting is 800~1500 DEG C, the time be 30min~
10h.It is furthermore preferred that the temperature of the roasting is 1150~1350 DEG C, the time is 45min~10h.
Above-mentioned preparation method, it is preferred that be mixed into 10~105 DEG C in the step (2), the time be 10min~
30min.The temperature and time mixed in step (2) need to be controlled within the scope of the invention, if being lower than the scope of the present invention,
Then the rate slow rate of adsorption and oxidation agent is lower, if beyond the scope of this invention, oxidant can degrade.Due to work
Property aluminium silicate salt material there is extremely strong alkalinity, water is added in the mixture of Xiang Qiyu oxidant to be reacted, gained mixture
Greater than 10, there are great amount of hydroxy group ion in slurry, oxidant reduction can be effectively suppressed in the pH value of slurry.
Above-mentioned preparation method, it is preferred that the temperature of the drying is 100~105 DEG C, dry to water content≤3wt%.
Above-mentioned preparation method, it is preferred that it is -100 mesh that granularity is crushed in the step (2).
The inventive concept total as one, the present invention also provides it is a kind of as above-mentioned thallium pollution deeply-curing agent or according to
The thallium pollution deeply-curing agent that above-mentioned preparation method is prepared is in the application administered in thallium pollution, comprising the following steps: to
Described thallium pollution deeply-curing agent processing 30 minutes or more are added in thallium pollution body, the thallium pollution deeply-curing agent and thallium pollution
The mass ratio of thallium element is (5000~20000) in body: 1, the thallium pollution body is the exceeded soil of thallium content, water body or useless
Slag.
Thallium pollution deeply-curing agent of the invention has Strong oxdiative, high absorption property, sinking speed fast and residue is stablized etc.
Feature pollutes the Tl in body when carrying out thallium pollution improvement using thallium pollution deeply-curing agent of the invention+Tl will be oxidized to3 +, at this time since the multiple hole of thallium pollution deeply-curing agent, high surface area characteristic can make Tl3+Into in material lattice, by from
The effects of son exchange, complexing and co-precipitation, is strongly bound.
Compared with the prior art, the advantages of the present invention are as follows:
(1) thallium pollution deeply-curing agent of the invention has strong basicity, strong oxidizing property, while the also more, surface with hole
The feature that product is big, CEC capacity is high administers thallium pollution using thallium pollution deeply-curing agent of the invention, can make the Tl in water body+Oxygen
Chemical conversion is easily removal Tl3+, the Characteristic Adsorption, exchange, a large amount of Tl of gelling package that recycle inorganic agent itself to have3+, finally and thallium
And stable combination occurs for the compound of thallium, forms indissoluble substance, reaches effect that is efficient, permanent, steadily solidifying pollution sources thallium
Fruit.
(2) preparation method of thallium pollution deeply-curing agent of the invention, process flow is simple, easily operated, raw material sources
Extensively, process costs are low, environmentally friendly, are suitable for large-scale production.
(3) application of thallium pollution deeply-curing agent of the invention, it is easy to operate, medicament is added without segmentation, it is required to add
Inorganic agent dosage it is small, the increase-volume of indissoluble substance is formed by after processing than small, is not easy to parse.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is SEM figure of the active silicic acid aluminium salt material under 5000 times in the embodiment of the present invention 1；
Fig. 2 is SEM figure of the active silicic acid aluminium salt material under 20000 times in the embodiment of the present invention 1；
Fig. 3 is SEM figure of the thallium pollution deeply-curing agent under 5000 times in the embodiment of the present invention 1；
Fig. 4 is SEM figure of the thallium pollution deeply-curing agent under 20000 times in the embodiment of the present invention 1；
Fig. 5 is SEM figure of the thallium pollution deeply-curing agent under 5000 times after adsorbing in the embodiment of the present invention 1；
Fig. 6 is SEM figure of the thallium pollution deeply-curing agent under 20000 times after adsorbing in the embodiment of the present invention 1.
Specific embodiment
To facilitate the understanding of the present invention, invention herein is done below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but protection scope of the present invention is not limited to following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art
Together.Technical term used herein is intended merely to the purpose of description specific embodiment, and it is of the invention to be not intended to limitation
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1:
A kind of preparation method of thallium pollution deeply-curing agent of the invention, comprising the following steps:
(1) by 1000g kaolinite (SiO2Content be 61.25%, Al2O3Content be 19.78%), 2000g dolomite
(content that the content of CaO is 31.46%, MgO is 20.11%) and 80g sodium carbonate is uniformly mixed and levigate extremely -200 mesh, then
In 1200 DEG C of roasting 1.5h, cooling obtains 2092g active silicic acid aluminium salt material；The active silicic acid aluminium salt material is in amplification 5000
Times, the SEM figure under 20000 times it is as shown in Figure 1, 2 respectively, by Fig. 1 and Fig. 2 it is found that the active silicic acid aluminium salt material is by not advising
The irregular crystal cavernous structure that bulk and loose aggregate then is piled up, and be made of silica and calcium,
Surface porosity presents convex not flat-shaped and contains many apertures, this illustrates that active silicic acid aluminium salt material has relatively high specific surface
Product, but also channel can be provided for ion exchange；
(2) the active silicic acid aluminium salt material after step (1) is uniformly mixed with 200g potassium permanganate, then puts into 2000g
In water, in 25 DEG C of stirring 0.5h, then the slurry that reaction obtains is dried and is crushed to 100 mesh and obtains thallium pollution deeply-curing
Agent.SEM figure of the thallium pollution deeply-curing agent under 5000 times, 20000 times of amplification is as shown in Figure 3,4 respectively, by Fig. 3 and Fig. 4
It is found that relative to active silicic acid aluminium salt material, thallium pollution deeply-curing agent has a higher specific surface area, surface it is more loose and
Aperture is more, has stronger ion exchanging function and absorption property.
Through detecting, in the thallium pollution deeply-curing agent of the present embodiment, with solubility in citric acid SiO2The content of effective silicon of meter
26.09wt%, the calcium and magnesium resultant in terms of CaO and MgO is 44.53wt%, with Fe2O3And MnO2The ferrimanganic resultant of meter is
5.5wt%, with Al2O3The alumina content of meter is 6.46wt%, and CEC capacity is 61.29cmol/kg, pH value 9.5, alkaline item
It is 1g/kg to Tl maximal absorptive capacity Qe under part.
It is test pair with Yichun City factory waste water containing thallium (thallium content is 246.2 μ g/L in waste water containing thallium, pH value 7.2)
As being handled using the thallium pollution deeply-curing agent of the present embodiment:
It takes 1L waste water containing thallium in 2L beaker, thallium pollution depth manufactured in the present embodiment is added according to the ratio of 2.462g/L
Curing agent, and 30min is stirred with the speed of 150r/min with rotor.Mixed solution after being adsorbed after the reaction was completed will mix
Solution filtering is closed, filtrate is detected by " measurement of water quality thallium " HJ748-2015 standard, and thallium content is 2.4 μ g/L in filtrate,
It is middle lower than " inorganic chemistry emission of industrial pollutants standard " (GB31573-2015) to provide 5 μ g/L of thallium wastewater discharge standard limit value,
And filtrate pH value is 8.5, it can direct outlet.The agent of thallium pollution deeply-curing is under 5000 times, 20000 times of amplification after absorption
SEM figure is as shown in Figure 5,6 respectively, and by Fig. 5 and Fig. 6 it is found that after adsorbing thallium, thallium pollution deeply-curing agent surface occurs largely
Loose floccule, and the hole of thallium pollution deeply-curing agent is filled by short cylinder crystal, and these are in thallium pollution deeply-curing
Emerging substance may be Tl (OH) in agent surface or aperture3Or other complexes of Tl.
Embodiment 2:
A kind of preparation method of thallium pollution deeply-curing agent of the invention, comprising the following steps:
(1) by 1000g albite (SiO2Content be 68.26%, Al2O3Content be 16.32%), 2000g lime stone
(content that the content of CaO is 51.55%, MgO is 1.87%) and 80g sodium sulphate is uniformly mixed and levigate extremely -200 mesh, then
In 1300 DEG C of roasting 1.0h, cooling obtains 2146g active silicic acid aluminium salt material；
(2) the active silicic acid aluminium salt material after step (1) is uniformly mixed with 120g potassium permanganate, then puts into 2000g
In water, in 25 DEG C of stirring 0.5h, then the slurry that reaction obtains is dried and is crushed to 100 mesh and obtains thallium pollution deeply-curing
Agent.
Through detecting, in the thallium pollution deeply-curing agent, with solubility in citric acid SiO2The content 28.22wt% of effective silicon of meter,
Calcium and magnesium resultant in terms of CaO and MgO is 48.80wt%, with Fe2O3And MnO2The ferrimanganic resultant of meter is 2.28wt%, with Al2O3Meter
Alumina content be 8.23wt%, CEC capacity is 56.66cmol/kg, pH value 9.8, to Tl maximum adsorption under alkaline condition
Amount Qe is 1g/kg.
With Yichun City factory waste water containing thallium (thallium content is 22.2 μ g/L in waste water containing thallium, pH value 6.7) for subjects,
It is handled using the thallium pollution deeply-curing agent of the present embodiment:
It takes 1L waste water containing thallium in 2L beaker, thallium pollution depth manufactured in the present embodiment is added according to the ratio of 0.42g/L
Curing agent, and 30min is stirred with the speed of 150r/min with rotor.Mixed solution after being adsorbed after the reaction was completed will mix
Solution filtering is closed, filtrate is detected by " measurement of water quality thallium " HJ748-2015 standard, and thallium content is 0.08 μ g/L in filtrate,
Lower than 0.1 μ g/L of thallium wastewater discharge standard limit value is provided in " standards for drinking water quality " GB5749-2006, thallium contains in filtrate
Amount has reached drinking water rank, and filtrate pH value is 8.5, can direct outlet.
Claims (10)
1. a kind of thallium pollution deeply-curing agent, which is characterized in that in the thallium pollution deeply-curing agent, with solubility in citric acid SiO2Meter
Content >=the 20wt%, calcium and magnesium resultant >=30wt% in terms of CaO and MgO, with Fe of effective silicon2O3And MnO2The ferrimanganic resultant of meter
For 1.8~5.5wt%, with Al2O3Alumina content >=6.4wt% of meter, CEC capacity >=54cmol/kg, pH value are 9~11,
To saturated extent of adsorption >=1g/kg of thallium under alkaline condition.
2. a kind of preparation method of thallium pollution deeply-curing agent as described in claim 1, which is characterized in that including following step
It is rapid:
(1) siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent are uniformly mixed, active silicic acid aluminium salt material is obtained after being roasted；
(2) water and oxidant are added into active silicic acid aluminium salt material, is uniformly mixed, obtained slurry is dried, is crushed,
Obtain thallium pollution deeply-curing agent.
3. preparation method according to claim 2, which is characterized in that the siulica-alumina mineral, calcium and magnesium adjuvant and fluxing agent
Mass ratio be (10~20): (12~35): 1；The mass ratio of the active silicic acid aluminium salt material and oxidant is (9~19):
1；The mass ratio of the active silicic acid aluminium salt material and water is 10:(1~10).
4. preparation method according to claim 2 or 3, which is characterized in that SiO in the siulica-alumina mineral2Content be 60~
80wt%, Al2O3Content be 10~20wt%；The siulica-alumina mineral is feldspar aluminosilicate mineral and/or clay class sial
Hydrochlorate mineral.
5. preparation method according to claim 2 or 3, which is characterized in that CaO's and MgO is total in the calcium and magnesium adjuvant
Content is 40~60wt%；The calcium and magnesium adjuvant is lime stone, in lime, calcium hydroxide, magnesite, dolomite, magnesium sulfate
It is at least one.
6. preparation method according to claim 2 or 3, which is characterized in that the fluxing agent is containing sodium raw materials and/or to contain potassium
Raw material, the sodium raw materials that contain are sodium sulphate, sodium oxide molybdena, sodium hydroxide, sodium carbonate, sodium bicarbonate, sodium chloride, sodium nitrate, saltcake
At least one of, the raw material containing potassium be potassium sulfate, potassium oxide, potassium hydroxide, potassium carbonate, potassium chloride, in potassium nitrate extremely
Few one kind；The oxidant is at least one of potassium ferrate, Na2Fe04, potassium permanganate, sodium permanganate, manganese dioxide.
7. preparation method according to claim 2 or 3, which is characterized in that the temperature of the roasting is 800~1500 DEG C,
Time is 30min~10h.
8. preparation method according to claim 2 or 3, which is characterized in that the temperature mixed in the step (2) is 10~
105 DEG C, the time is 10min~30min.
9. preparation method according to claim 2 or 3, which is characterized in that in the step (1), by siulica-alumina mineral, calcium and magnesium
The mixture of adjuvant and fluxing agent after mixing is first ground to be roasted again, after grinding the granularity of mixture be+
1500 mesh to -60 mesh.
10. a kind of thallium pollution deeply-curing agent as described in claim 1 or preparation side according to claims 2 to 9
The thallium pollution deeply-curing agent that method is prepared is in the application administered in thallium pollution, which comprises the following steps: to thallium
Described thallium pollution deeply-curing agent processing 30 minutes or more are added in pollution body, the thallium pollution deeply-curing agent and thallium pollution body
The mass ratio of middle thallium element is (5000~20000): 1, the thallium pollution body is exceeded soil, water body or the waste residue of thallium content.
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| CN115261630A (en) * | 2022-08-11 | 2022-11-01 | 华南理工大学 | Method for recovering thallium from thallium-containing sludge and stabilizing bottom slag |
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