AU2020103433A4 - Method for preparing magnetic biochar from kitchen garbage - Google Patents
Method for preparing magnetic biochar from kitchen garbage Download PDFInfo
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- AU2020103433A4 AU2020103433A4 AU2020103433A AU2020103433A AU2020103433A4 AU 2020103433 A4 AU2020103433 A4 AU 2020103433A4 AU 2020103433 A AU2020103433 A AU 2020103433A AU 2020103433 A AU2020103433 A AU 2020103433A AU 2020103433 A4 AU2020103433 A4 AU 2020103433A4
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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
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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
- B01J20/06—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
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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
- B01J20/28—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
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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
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
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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
- 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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
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- 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
The invention discloses a method for preparing magnetic biochar from kitchen garbage, and belongs to the
technical field of biochar materials. The method comprises the steps of: collecting and naturally air-drying
kitchen garbage until the water content is less than 10%, and crushing and sieving the kitchen garbage to
obtain crushed materials; putting the crushed materials into a porcelain boat, placing the porcelain boat into a
tube furnace, introducing nitrogen to provide an anoxic condition, heating to 250-600°C at a heating rate of
5-10°Cmin, and pyrolyzing for 2-4 hours to obtain the kitchen garbage biochar; mixing the kitchen garbage
biochar at a concentration of 40 gL1 -100 gL with Fe salt and Cu salt at a concentration of 10 mmolLU-30
mmolL, continuously adding a strong base solution at the concentration of 50 gL'-80 gL to the mixture
under stirring, and reacting the mixture for 6-48 hours at 100-200°C; and performing vacuum filtration
cleaning and drying treatment on a product subjected to hydrothermal treatment to obtain the recyclable
kitchen garbage biochar, so that good social and environmental benefits are achieved by recycling the kitchen
garbage and reducing environmental hazards.
Description
Method for Preparing Magnetic Biochar from Kitchen Garbage
Technical Field
The invention belongs to the technical field of biochar materials, and particularly relates to a method for
preparing magnetic biochar from kitchen garbage.
Background Art
In June 2019, nine departments, such as the Office of Central Agricultural Council, the Ministry of Housing
and Urban-Rural Development, the Ministry of Ecological Environment, and the Ministry of Science and
Technology, jointly issued the Notification of the classification work of domestic garbage performed
comprehensively in cities at and above the prefectural level by the Ministry of Housing and Urban-Rural
Construction and other departments, and proposed that the classification work of domestic garbage be started
comprehensively in cities at and above the prefectural level since 2019. With the comprehensive
implementation of garbage classification policy, it is a hot issue to strengthen the collection, transportation and
disposal of kitchen garbage. The kitchen garbage is food waste generated during the consumption process of
public canteen, family and catering industry in the daily life, and mainly includes food waste during pre-meal
food processing and food residue after the meal. The traditional disposal methods for the kitchen garbage
mainly include landfill and incineration. The landfill leachate generated in the landfill process and toxic gases
such as dioxin generated in the incineration process have potential harm to the environment, and are easy to
cause outbreak of infectious diseases and seriously affect human health. Therefore, it is very important for
resource utilization of the kitchen garbage.
The kitchen garbage is pyrolyzed under the conditions of low oxygen or no oxygen, most carbon-containing
organic matters in the garbage cannot be changed into harmful CO 2, but are converted into biochar, so that the
CO 2 is prevented from entering the atmosphere, and 21% carbon displacement can be reduced [Environmental
Science and Technology, 2016, 39(S2): 245-250]. In view of this, the technology for preparing the biochar
from the kitchen garbage by pyrolysis has become increasingly active in recent years. In our previous studies,
it was found that the biochar prepared from the kitchen garbage by pyrolysis can be used to improve soil
properties and soil fertility (Patent Grant No. CN104557160A) and also effectively adsorb methylene blue in
water (Journal of Agricultural Resources and Environment, 2019, 36(1): 115-120). However, it is difficult to
recycle and separate pure biochar powder in the use process, which results in waste of resources. The method
for preparing the magnetic biochar by combining the magnetic material with the biochar can effectively solve the problem of difficult recycling of the biochar.
In addition, the regeneration of the adsorption saturated biochar not only can improve the utilization rate of the
biochar, but also can reduce the secondary pollution to the environment. Under the irradiation of sunlight, the
photocatalysis regeneration technology degrades the organic matters adsorbed on the surface of an adsorbent
by utilizing the generated free radicals with strong oxidizing property to achieve the purpose of regeneration of
the adsorbent. Therefore, the magnetic property is endowed to the biochar prepared by pyrolysis of the kitchen
garbage through a certain means, and the regeneration of the biochar is realized by the photocatalysis
technology, so that the resource utilization of the kitchen garbage after classified recycling of the garbage can
be realized, the harm of the kitchen garbage to the environment can be reduced, and an important guiding can
be provided for the biochar prepared by the kitchen garbage in the aspects of recycling and cyclic regeneration.
Summary of the Invention
The invention provides a method for preparing magnetic biochar from kitchen garbage, which realizes
resource utilization of the kitchen garbage after classified recycling of the garbage, reduces the harm of the
kitchen garbage to the environment, and simultaneously achieves recycling and cyclic regeneration of the
prepared biochar in the using process. According to the method, the pyrolysis technology is adopted to prepare
the kitchen garbage biochar which is mixed with a certain amount of Fe salt and Cu2+ salt; and the kitchen
garbage magnetic biochar containing iron oxides (Fe 304 and Fe 20 3) and copper iron ore type CuFeO 2 is
prepared by the hydrothermal technology under an alkaline condition. The Fe 304 and Fe 203 can provide
magnetism for the kitchen garbage biochar to facilitate the recycling of the biochar, and the cyclic regeneration
of the biochar after adsorption and saturation is realized by utilizing the photocatalysis characteristic of the
copper-iron ore type CuFeO 2 .
In order to solve the technical problem, the technical solution adopted by the invention is as follows.
A method for preparing magnetic biochar from kitchen garbage comprises the steps of:
Si, collecting and air-drying kitchen garbage until the water content is less than 10%, and crushing and sieving
the kitchen garbage to obtain crushed materials;
S2, preparing kitchen garbage biochar by pyrolyzing the crushed materials, and washing, drying, grinding and
screening the prepared kitchen garbage biochar for later use;
S3, ultrasonically mixing the kitchen garbage biochar with Fe salt and Cu2+ salt in water, and continuously
adding a strong base solution to the mixture under the condition of continuous stirring;
S4, transferring the obtained solution into a hydrothermal reaction kettle for a hydrothermal pyrolysis reaction; and
S5, performing vacuum filtration, cleaning and drying treatment on a product subjected to the hydrothermal
pyrolysis.
Preferably, the kitchen garbage biochar is prepared by pyrolysis under an inert atmosphere at a heating rate of
5-10°Cmin, a pyrolysis temperature of 250-600°C and a pyrolysis time of 2-4 hours.
Preferably, in the step S2, it is sequentially washed with dehydrated alcohol, hydrochloric acid, nitric acid or
sulfuric acid at a concentration of 0.5-1.0 molL 1, and deionized water at a drying temperature of 60-80°C for
5-10 hours, ground with a mortar, and screened with a 300-500 mesh sieve.
Preferably, the content of the kitchen garbage biochar is 40 gL1 -100 gL
. Preferably, the Fe3+ salt is ferric chloride, ferric nitrate nonahydrate, ferric sulfate, or ferric oxalate
pentahydrate.
Preferably, the Cu2+ salt is copper chloride, copper nitrate trihydrate, or copper sulfate pentahydrate.
Preferably, the concentration of the Fe salt and the Cu2+ salt is 10 mmolL -30 mmolL
. Preferably, the strong base solution is sodium hydroxide or potassium hydroxide at a concentration of 50
gLi 1-80 gL.
Preferably, the hydrothermal reaction temperature is 100-200°C, the hydrothermal reaction time is 6-48 hours,
the product subjected to hydrothermal treatment is washed sequentially with absolute ethyl alcohol, a dilute
solution of hydrochloric acid, nitric acid or sulfuric acid, and deionized water, and the product is washed to be
neutral by vacuum filtration and then placed in an oven at the drying temperature of 70-80°C for 8-12 hours.
Preferably, the dilute solution of hydrochloric acid, nitric acid, or sulfuric acid has a concentration of 0.5-1.0
molL.
The invention has some beneficial effects.
1. The kitchen garbage magnetic biochar has the advantages that the specific surface area is increased, the
recycling of the kitchen garbage after classified recycling is realized, the harm of the kitchen garbage to the
environment is reduced, and the kitchen garbage magnetic biochar has good social benefits and environmental
benefits.
2. According to the kitchen garbage magnetic biochar provided by the invention, the kitchen garbage biochar
prepared by pyrolysis is mixed with Fe salt and Cu2+ salt; and a magnetic garlic straw biochar containing a
series of iron oxides (Fe 304 and Fe 20 3) and copper iron ore type CuFeO 2 is prepared by hydrothermal method
under an alkaline condition. The Fe 304 and Fe 203 can provide magnetism for the biochar to facilitate the
recycling of the biochar, and the cyclic regeneration of the biochar after adsorption and saturation is realized by utilizing the photocatalysis characteristic of the copper-iron ore type CuFeO 2
. Detailed Description of the Invention
The technical solution of the embodiments of the present invention will now be described clearly and fully
hereinafter with reference to the embodiments thereof It should be understood that the described embodiments
are only a few, but not all embodiments of the invention. Based on the embodiments of the present invention,
all other embodiments obtained by a person of ordinary skill in the art without involving any inventive effort
are within the scope of the present invention.
Embodiment 1
The invention discloses a method for preparing magnetic biochar from kitchen garbage, which specifically
comprises the following steps.
(1) Preparation of biological biochar from kitchen garbage
The kitchen garbage is collected, including rice, steamed bread crumbs, vegetables and meat, naturally
air-dried until the water content is less than 10%, and crushed and sieved to obtain crushed materials. The
crushed materials are put into a porcelain boat, the porcelain boat is placed into a tube furnace, nitrogen is
introduced to provide an anoxic condition, and it is heated to 250°C at a heating rate of 5 °Cmin1 , wherein the
pyrolysis time is 2 hours; the pyrolyzed product is sequentially washed with dehydrated alcohol, 0.5 molL 1
hydrochloric acid, and deionized water, and placed in an oven at a drying temperature of 60°C for 5 hours; and
the dried product is ground with a mortar, and screened with a 300-mesh sieve to obtain the kitchen garbage
biochar.
(2) Preparation of magnetic biochar from kitchen garbage
Copper chloride (99.99%) and ferric chloride (99.99%) are weighed in a molar ratio of Fe:Cu of 1:1 at room
temperature to be dissolved in 60 ml of deionized water. With continuous stirring until the solid is completely
dissolved, a Fe salt and Cu salt solution with a molar ratio of Fe:Cu of 1:1 and a concentration of 10
mmolLi is prepared. 2.5 g of kitchen garbage biochar is added into the solution, a 50 gL of NaOH solution is
added to provide an alkaline condition, and the stirring is continued for about 10 minutes until the mixture is
completely dissolved. The mixed solution is transferred to a hydrothermal reaction kettle, placed in a
homogeneous reactor for a hydrothermal reaction, and reacts for 6 hours at the temperature of 100°C. After the
reaction is finished, the product subjected to hydrothermal treatment is washed to be neutral sequentially with
absolute ethyl alcohol, 0.5 molL of dilute nitric acid, and deionized water, and the centrifuged product is
dried in an oven at 70°C for 12 hours.
Embodiment 2
The invention relates to a method for preparing magnetic biochar from kitchen garbage. In the embodiment,
the amount of the kitchen garbage biochar is 3.5g, with other steps same with Embodiment 1. Embodiment 2
specifically comprises the following steps.
(1) Preparation of biological biochar from kitchen garbage
The kitchen garbage is collected, including rice, steamed bread crumbs, vegetables and meat, naturally
air-dried until the water content is less than 10%, and crushed and sieved to obtain crushed materials. The
crushed materials are put into a porcelain boat, the porcelain boat is placed into a tube furnace, nitrogen is
introduced to provide an anoxic condition, and it is heated to 600°C at a heating rate of 8 °Cmin', wherein the
o pyrolysis time is 4 hours; the pyrolyzed product is sequentially washed with dehydrated alcohol, 1 moll of
hydrochloric acid, and deionized water, and placed in an oven at a drying temperature of 80°C for 10 hours;
and the dried product is ground with a mortar, and screened with a 500-mesh sieve to obtain the kitchen
garbage biochar.
(2) Preparation of magnetic biochar from kitchen garbage
Cu(N0 3 )2-3H 2 0 (99.99%) and Fe(N03)3-9H 2 0 (99.99%) are weighed in a molar ratio of Fe:Cu of 1:1 at room
temperature to be dissolved in 60 ml of deionized water. With continuous stirring until the solid is completely
dissolved, a Fe salt and Cu salt solution with a molar ratio of Fe:Cu of 1:1 and a concentration of 30
mmolLi is prepared. 3.5 g of kitchen garbage biochar is added into the solution above, then 80 gL of
potassium hydroxide solution is added to provide an alkaline condition, and stirring is continued for 10
minutes until the mixture is completely dissolved. The mixed solution is transferred to a hydrothermal reaction
kettle, placed in a homogeneous reactor for a hydrothermal reaction, and reacts for 48 hours at the temperature
of 200°C. After the reaction is finished, the product subjected to hydrothermal treatment is washed to be
neutral sequentially with absolute ethyl alcohol, 1 molL of dilute nitric acid, and deionized water, and the
centrifuged product is dried in an oven at 80°C for 12 hours.
Embodiment 3
The invention relates to a method for preparing magnetic biochar from kitchen garbage. In the embodiment,
the amount of the kitchen garbage biochar is 5.0 g, with other steps same with Embodiment 1. Embodiment 3
specifically comprises the following steps.
(1) Preparation of biological biochar from kitchen garbage
The kitchen garbage is collected, including rice, steamed bread crumbs, vegetables, meat and the like, naturally
air-dried until the water content is less than 10%, and crushed and sieved to obtain crushed materials. The crushed materials are put into a porcelain boat, the porcelain boat is placed into a tube furnace, nitrogen is introduced to provide an anoxic condition, and it is heated to 400°C at a heating rate of 8 °Cmin, wherein the pyrolysis time is 3 hours; the pyrolyzed product is sequentially washed with dehydrated alcohol, 0.5 molL of hydrochloric acid, and deionized water, and placed in an oven at a drying temperature of 70°C for 10 hours; and the dried product is ground with a mortar, and screened with a 400-mesh sieve to obtain the kitchen garbage biochar.
(2) Preparation of magnetic biochar from kitchen garbage
Copper sulfate pentahydrate (99.99%) and ferric oxalate pentahydrate (99.99%) are weighed in a molar ratio of
Fe:Cu of 1:1 at room temperature to be dissolved in 60 ml of deionized water. With continuous stirring until
the solid is completely dissolved, a Fe salt and Cu salt solution with a molar ratio of Fe:Cu of 1:1 and a
concentration of 20 mmolL 1 is prepared. 5.0 g of the kitchen garbage biochar is added into the solution above,
60 gL of potassium hydroxide solution is added into the solution, and stirring is continued for 10 minutes
until the mixture is completely dissolved. The mixed solution is transferred to a hydrothermal reaction kettle,
placed in a homogeneous reactor for a hydrothermal reaction, and reacts for 24 hours at the temperature of
160°C. After the reaction is finished, the product subjected to hydrothermal treatment is washed to be neutral
sequentially with absolute ethyl alcohol, 0.5 molL-1 of dilute nitric acid, and deionized water, and the
centrifuged product is dried in an oven at 80°C for 10 hours. In other embodiments, ferric oxalate pentahydrate
may also be substituted with ferric sulfate.
In addition, it should be understood that although the description is described by the implementations, not
every implementation includes only a single technical solution. This narrative form of the description is for the
sake of clarity only. Those skilled in the art should regard the description as a whole. The technical solutions in
the various embodiments may be appropriately combined to form other embodiments as will be understood by
those skilled in the art.
Claims (10)
1. A method for preparing magnetic biochar from kitchen garbage, characterized by comprising the steps of:
Si, collecting and air-drying kitchen garbage until the water content is less than 10%, and crushing and sieving
the kitchen garbage to obtain crushed materials;
S2, preparing kitchen garbage biochar by pyrolyzing the crushed materials, and washing, drying, grinding and
screening the prepared kitchen garbage biochar for later use;
S3, ultrasonically mixing the kitchen garbage biochar with Fe salt and Cu2+ salt in water, and continuously
adding a strong base solution to the mixture under the condition of continuous stirring;
S4, transferring the obtained solution into a hydrothermal reaction kettle for a hydrothermal pyrolysis reaction;
and
S5, performing vacuum filtration, cleaning and drying treatment on a product subjected to the hydrothermal
pyrolysis.
2. The method according to claim 1, characterized in that the kitchen garbage biochar is prepared by pyrolysis
under an inert atmosphere at a heating rate of 5-10°Cmin', a pyrolysis temperature of 250-600°C and a
pyrolysis time of 2-4 hours.
3. The method according to claim 1, characterized in that in the step S2, it is sequentially washed with
dehydrated alcohol, hydrochloric acid, nitric acid or sulfuric acid at a concentration of 0.5-1.0 molL 1 , and
deionized water at a drying temperature of 60-80°C for 5-10 hours, ground with a mortar, and screened with a
300-500 mesh sieve.
4. The method according to claim 1, characterized in that the content of the kitchen garbage biochar is 40
gL'-100 gEL.
5. The method according to claim 1, characterized in that the Fe3+ salt is ferric chloride, ferric nitrate
nonahydrate, ferric sulfate, or ferric oxalate pentahydrate.
6. The method according to claim 1, characterized in that the Cu2+ salt is copper chloride, copper nitrate
trihydrate, or copper sulfate pentahydrate.
7. The method according to claim 1, characterized in that the concentration of the Fe salt and the Cu2+ salt is
mmolL 1-30 mmolLi 1 .
8. The method according to claim 1, characterized in that the strong base solution is sodium hydroxide or
potassium hydroxide at a concentration of 50 gL 1 -80 gL.
9. The method according to claim 1, characterized in that the hydrothermal reaction temperature is 100-200°C,
the hydrothermal reaction time is 6-48 hours, the product subjected to hydrothermal treatment is washed
sequentially with absolute ethyl alcohol, a dilute solution of hydrochloric acid, nitric acid or sulfuric acid, and
deionized water, and the product is washed to be neutral by vacuum filtration and then placed in an oven at the
drying temperature of 70-80°C for 8-12 hours.
10. The method according to claim 1, characterized in that the dilute solution of hydrochloric acid, nitric acid,
or sulfuric acid has a concentration of 0.5-1.0 molL 1
.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010074939.8A CN111266086B (en) | 2020-01-22 | 2020-01-22 | Method for preparing magnetic biochar from kitchen waste |
| CN202010074939.8 | 2020-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2020103433A4 true AU2020103433A4 (en) | 2021-01-28 |
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| AU (1) | AU2020103433A4 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114259985A (en) * | 2021-12-21 | 2022-04-01 | 中州水务控股有限公司 | Method for preparing biochar by using kitchen waste as biomass |
| CN114496592A (en) * | 2021-12-20 | 2022-05-13 | 西安理工大学 | Preparation method of supercapacitor electrode material taking kitchen paper as raw material |
| CN114832776A (en) * | 2022-05-10 | 2022-08-02 | 昆明理工大学 | Acidized puffed active biochar adsorbing material as well as preparation method and application thereof |
| CN114984956A (en) * | 2022-04-18 | 2022-09-02 | 武汉理工大学 | Preparation method of magnetic sludge biochar applied to activated peroxymonosulfate for efficiently degrading sulfamethoxazole in water |
| CN115055161A (en) * | 2022-06-20 | 2022-09-16 | 南京林业大学 | Preparation method of magnetic activated carbon, magnetic activated carbon and application thereof |
| CN115744999A (en) * | 2022-09-27 | 2023-03-07 | 青岛农业大学 | CuFeO with delafossite type structure 2 Biological carbon composite material and preparation method thereof |
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| CN113578300A (en) * | 2021-07-15 | 2021-11-02 | 华南理工大学 | Ag-g-C3N4Biological carbon composite material and preparation method and application thereof |
| CN114768807A (en) * | 2022-04-29 | 2022-07-22 | 西北工业大学深圳研究院 | Iron-carbon composite Fenton catalyst and preparation method and application thereof |
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| GB1400948A (en) * | 1973-02-03 | 1975-07-16 | Ppg Industries Inc | Electrodes having a delafossite surface |
| JP5319718B2 (en) * | 2011-03-04 | 2013-10-16 | Ｊｘ日鉱日石金属株式会社 | Methods for leaching copper and gold from sulfide ores |
| CN104923229A (en) * | 2014-03-21 | 2015-09-23 | 中国科学院大连化学物理研究所 | Activated carbon catalyst used for Fenton-like technology, and preparation and application thereof |
| DE102015010083A1 (en) * | 2015-08-07 | 2017-02-09 | Friedrich-Schiller-Universität Jena | Redox flow cell for storing electrical energy and its use |
| CN105085521A (en) * | 2015-09-09 | 2015-11-25 | 河北师范大学 | Synthesis method of 3-nitro-imidazo [1,2-a] pyridine derivative |
| CN106732362A (en) * | 2016-12-21 | 2017-05-31 | 福建师范大学 | A kind of kitchen garbage is the sludge base charcoal preparation method of presoma |
| CN106976926B (en) * | 2017-04-25 | 2020-07-24 | 四川理工学院 | CuFeO2Method for degrading organic wastewater by coupling material with persulfate under visible light catalysis |
| CN108031433A (en) * | 2017-12-14 | 2018-05-15 | 湖南科技大学 | A kind of preparation method of mesoporous calcium silicates load nano zero-valence iron composite material |
| CN109485621A (en) * | 2018-11-30 | 2019-03-19 | 中国科学技术大学 | A method of producing gamma valerolactone |
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2020
- 2020-01-22 CN CN202010074939.8A patent/CN111266086B/en active Active
- 2020-11-13 AU AU2020103433A patent/AU2020103433A4/en not_active Ceased
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| CN114496592A (en) * | 2021-12-20 | 2022-05-13 | 西安理工大学 | Preparation method of supercapacitor electrode material taking kitchen paper as raw material |
| CN114259985A (en) * | 2021-12-21 | 2022-04-01 | 中州水务控股有限公司 | Method for preparing biochar by using kitchen waste as biomass |
| CN114984956A (en) * | 2022-04-18 | 2022-09-02 | 武汉理工大学 | Preparation method of magnetic sludge biochar applied to activated peroxymonosulfate for efficiently degrading sulfamethoxazole in water |
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| CN115055161A (en) * | 2022-06-20 | 2022-09-16 | 南京林业大学 | Preparation method of magnetic activated carbon, magnetic activated carbon and application thereof |
| CN115055161B (en) * | 2022-06-20 | 2023-10-13 | 南京林业大学 | Preparation method of magnetic activated carbon, magnetic activated carbon and application of magnetic activated carbon |
| CN115744999A (en) * | 2022-09-27 | 2023-03-07 | 青岛农业大学 | CuFeO with delafossite type structure 2 Biological carbon composite material and preparation method thereof |
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| CN111266086B (en) | 2022-05-17 |
| CN111266086A (en) | 2020-06-12 |
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