CN108380178A - A kind of preparation method of restoration of the ecosystem agent and its absorbing process to radionuclide - Google Patents
A kind of preparation method of restoration of the ecosystem agent and its absorbing process to radionuclide Download PDFInfo
- Publication number
- CN108380178A CN108380178A CN201810201321.6A CN201810201321A CN108380178A CN 108380178 A CN108380178 A CN 108380178A CN 201810201321 A CN201810201321 A CN 201810201321A CN 108380178 A CN108380178 A CN 108380178A
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- Prior art keywords
- biological carbon
- restoration
- preparation
- agent
- magnetic
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- 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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- 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
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4843—Algae, aquatic plants or sea vegetals, e.g. seeweeds, eelgrass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Abstract
Include the two big step of preparation that carbonization and magnetic biological carbon are carried out to natural biomass the invention discloses a kind of preparation method of restoration of the ecosystem agent and its to the absorbing process of radionuclide；It can be generated under nitrogen calcining containing there are many biological carbons of surface functional groups using water plants biomass such as algae; there is high efficiency of additive capability to U (VI); it the U (VI) of absorption and it can be reduced into U (IV) by magnetite nanometric particles in magnetic biological carbon generates the sediments such as U (IV) O2 (s); to reach fixed suction-operated; and; the raw material sources of biological carbon are abundant; generally existing; turn waste into wealth; integrated artistic is simple, application easy to spread.
Description
Technical field
The present invention relates to ecological agent technical field, the preparation method of specially a kind of restoration of the ecosystem agent and its to radioactivity
The absorbing process of nucleic.
Background technology
The uranium of oxidation state is (for example, UO2 2+) be the neighbouring earth's surface generally existing of uranium mine a kind of pollutant.Due to UO2 2+Water
Dissolubility is good, and can form various water-soluble complex compounds with CO2 in hydrone and air at low and high pH, therefore,
Uranyl is easy to find migration and conversion in earth's surface.At present it has been proven that it is one that shallow-layer, which is polluted U (VI) the reduction U (IV) of aquifer,
The effective ways of the fixed uranium of kind, and Fe (II) can well restore uranium in nano ferriferrous oxide.Then, nanometer four aoxidizes
Three-iron is easy to reunite in aqueous solution and aoxidize since surface energy is big and chemism is strong.Meanwhile the major lake eutrophication in China
Change is very long serious, thus generates the water plants such as a large amount of algae and has become reluctant pollutant.However, these biomass exist
The lower biological carbon that can generate the surface functional groups containing there are many of nitrogen calcining, has fine adsorption effect to U (VI).
Invention content
The purpose of the present invention is to provide a kind of preparation method of restoration of the ecosystem agent and its to the absorption work of radionuclide
Skill, the magnetic biological carbon prepared has absorption and reducing power well to U (VI), while the raw material sources of biological carbon are rich
Richness, generally existing turn waste into wealth, and this is simple for process, application easy to spread, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of preparation method of restoration of the ecosystem agent, including with
Lower step：
S1：A large amount of fresh algae are collected in the serious Chaohu of eutrophication, and by the algae centrifugal dehydration of collection, then made
It is repeatedly washed with distilled water and is centrifugally separating to obtain the high algae of purity；
S2：The biomass purified in S1 is dissolved in 100mL deionized waters and obtains dirty solution, is then being sufficiently stirred lower incite somebody to action
5.0g frerrous chlorides are added in above-mentioned mixed liquor, react 24 hours, are centrifuged after adsorption equilibrium, finally in vacuum at room temperature
Freeze-drying；
S3：The solid that will be dried in S2 grinds and stirs evenly, and uniformly mixed solid is then placed on quartz surfaces ware
In, it is placed in tubular type Muffle furnace, and two sections of sealings are passed through the air in 30 minutes drains of nitrogen；
S4：In the case where being continuously passed through condition of nitrogen gas by 2.5ml/min, 700 ° are heated rapidly to the heating speed of 5 °/s, so
Reaction 1h rapid cleavages convert biomass into biological carbon afterwards, meanwhile, Fe (II) is converted into magnetic under high temperature and nitrogen
Fe3O4, a small amount of chlorion is at high temperature with HCl (g) or Cl2(g) form volatilization；
S5：It is cooled to room temperature under nitrogen protection and obtains the restoration of the ecosystem agent of magnetic biological carbon.
Preferably, the restoration of the ecosystem agent of the magnetic biological carbon is made of the element of following mass fraction accounting：
036.93%, C 21.53, N 8.74%, H 4.25%, Fe 28.68%.
The present invention provides another technical solution：A kind of restoration of the ecosystem agent utilizes the absorbing process of radionuclide
Biological carbon surface exhibiting high surface functional group has a high efficiency of additive capability to U (VI) in restoration of the ecosystem agent, the U (VI) of absorption and can be with
It is reduced into U (IV) by magnetite nanometric particles in magnetic biological carbon and generates U (IV) O2 (s) sediments, to reach fixed absorption
Effect.
Compared with prior art, the beneficial effects of the invention are as follows：
The preparation method of this restoration of the ecosystem agent and its absorbing process to radionuclide utilize the water plants such as algae
Biomass nitrogen calcining under can generate containing there are many surface functional groups biological carbon, to U (VI) have well absorption and
Reducing power, while the raw material sources of biological carbon are abundant, generally existing turns waste into wealth, and integrated artistic is simple, easy to spread to answer
With.
Description of the drawings
Fig. 1 is the magnetic biological carbon phenogram of the synthesis of the present invention；
Fig. 2 is the scanning electron microscope (SEM) photograph of the present invention；
Fig. 3 is the magnetization curve figure of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one：
- 3 are please referred to Fig.1, a kind of preparation method of restoration of the ecosystem agent includes the following steps：
The first step：It is carbonized to natural biomass, a large amount of fresh algae is collected in the serious Chaohu of eutrophication；It will
Then the algae centrifugal dehydration of collection is repeatedly washed centrifugation using distilled water and waits until the high algae of purity, by above-mentioned purifying
Biomass dissolve in 100mL deionized waters and obtain dirty solution, then be sufficiently stirred lower by 5.0g frerrous chlorides and be added it is above-mentioned
In mixed liquor, reacts 24 hours, centrifuged after adsorption equilibrium, finally in vacuum freeze drying at room temperature；
Second step：Prepare the restoration of the ecosystem agent of magnetic biological carbon；By the solid of above-mentioned drying, grinds and stir evenly；So
Uniformly mixed solid is placed in quartz surfaces ware afterwards, is placed in tubular type Muffle furnace；Two sections of sealings are passed through nitrogen to arrange within 30 minutes
Except the air in pipe；Then it is continuously being passed through under condition of nitrogen gas (2.5ml/min), is being heated rapidly to the heating speed of 5 °/s
It 700 °, then reacts 1h rapid cleavages and converts biomass into biological carbon, meanwhile, Fe (II) is converted into magnetic under high temperature and nitrogen
The Fe of property3O4, a small amount of chlorion is at high temperature with HCl (g) or Cl2(g) form volatilization, it is finally cold under nitrogen protection
But it arrives room temperature and obtains magnetic biological carbon.
Embodiment two：
It is described based on above-described embodiment one, a kind of absorbing process of restoration of the ecosystem agent to radionuclide, profit is also provided
There is high efficiency of additive capability to U (VI) with biological carbon surface exhibiting high surface functional group in restoration of the ecosystem agent, the U (VI) of absorption and can
U (IV) O2 (s) sediments are generated to be reduced into U (IV) by magnetite nanometric particles in magnetic biological carbon, to reach fixed suction
Attached effect.
In summary：The preparation method of restoration of the ecosystem agent provided by the invention and its absorbing process to radionuclide,
It can generate the biological carbon of the surface functional groups containing there are many using water plants biomass such as algae under nitrogen calcining, to U
(VI) there is absorption and reducing power well, while the raw material sources of biological carbon are abundant, generally existing turns waste into wealth, whole
Body technology is simple, application easy to spread.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (3)
1. a kind of preparation method of restoration of the ecosystem agent, which is characterized in that include the following steps：
S1：A large amount of fresh algae are collected in the serious Chaohu of eutrophication, and by the algae centrifugal dehydration of collection, reuse steaming
Repeatedly washing is centrifugally separating to obtain the high algae of purity to distilled water；
S2：The biomass purified in S1 is dissolved in 100mL deionized waters and obtains dirty solution, then be sufficiently stirred it is lower by 5.0g
Frerrous chloride is added in above-mentioned mixed liquor, reacts 24 hours, is centrifuged after adsorption equilibrium, finally in vacuum refrigeration at room temperature
It is dry；
S3：The solid that will be dried in S2 grinds and stirs evenly, and then uniformly mixed solid is placed in quartz surfaces ware,
It is placed in tubular type Muffle furnace, and two sections of sealings are passed through the air in 30 minutes drains of nitrogen；
S4：In the case where being continuously passed through condition of nitrogen gas by 2.5ml/min, 700 ° are heated rapidly to the heating speed of 5 °/s, then instead
1h rapid cleavages are answered to convert biomass into biological carbon, meanwhile, Fe (II) is converted into magnetic Fe under high temperature and nitrogen3O4, few
The chlorion of amount is at high temperature with HCl (g) or Cl2(g) form volatilization；
S5：It is cooled to room temperature under nitrogen protection and obtains the restoration of the ecosystem agent of magnetic biological carbon.
2. a kind of preparation method of restoration of the ecosystem agent as described in claim 1, it is characterised in that：The life of the magnetic biological carbon
State renovation agent is made of the element of following mass fraction accounting：O 36.93%, C 21.53, N 8.74%, H 4.25%, Fe
28.68%.
3. a kind of restoration of the ecosystem agent as described in claim 1 is to the absorbing process of radionuclide, which is characterized in that utilize life
Biological carbon surface exhibiting high surface functional group has a high efficiency of additive capability to U (VI) in state renovation agent, the U (VI) of absorption and can be by
Magnetite nanometric particles are reduced into U (IV) and generate U (IV) O2 (s) sediments in magnetic biological carbon, make to reach fixed absorption
With.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201321.6A CN108380178A (en) | 2018-03-12 | 2018-03-12 | A kind of preparation method of restoration of the ecosystem agent and its absorbing process to radionuclide |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810201321.6A CN108380178A (en) | 2018-03-12 | 2018-03-12 | A kind of preparation method of restoration of the ecosystem agent and its absorbing process to radionuclide |
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| CN108380178A true CN108380178A (en) | 2018-08-10 |
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| CN201810201321.6A Pending CN108380178A (en) | 2018-03-12 | 2018-03-12 | A kind of preparation method of restoration of the ecosystem agent and its absorbing process to radionuclide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126719A (en) * | 2018-11-06 | 2019-01-04 | 肖志宇 | A kind of cyanobacteria agent for capturing and preparation method thereof containing the magnetic rice husk that is carbonized |
| CN109589913A (en) * | 2018-11-09 | 2019-04-09 | 广州润方环保科技有限公司 | A kind of magnetic bio charcoal and the preparation method and application thereof of quick removal methylene blue |
| CN112044408A (en) * | 2020-09-28 | 2020-12-08 | 东华理工大学 | Magnetic bamboo fiber and preparation process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126719A (en) * | 2018-11-06 | 2019-01-04 | 肖志宇 | A kind of cyanobacteria agent for capturing and preparation method thereof containing the magnetic rice husk that is carbonized |
| CN109589913A (en) * | 2018-11-09 | 2019-04-09 | 广州润方环保科技有限公司 | A kind of magnetic bio charcoal and the preparation method and application thereof of quick removal methylene blue |
| CN112044408A (en) * | 2020-09-28 | 2020-12-08 | 东华理工大学 | Magnetic bamboo fiber and preparation process thereof |
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Application publication date: 20180810 |