CN108217647A - A kind of wormwood based biomass activated carbon and preparation method thereof and its application - Google Patents
A kind of wormwood based biomass activated carbon and preparation method thereof and its application Download PDFInfo
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- CN108217647A CN108217647A CN201810077596.3A CN201810077596A CN108217647A CN 108217647 A CN108217647 A CN 108217647A CN 201810077596 A CN201810077596 A CN 201810077596A CN 108217647 A CN108217647 A CN 108217647A
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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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- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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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
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
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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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
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Abstract
Wormwood based biomass activated carbon according to the present invention and preparation method thereof and its application, it is the preparation method using wormwood slag as the acid soak limit oxygen activation of raw material, this method is simple for process, short preparation period, favorable repeatability, the recycling for wormwood slag provide a kind of new method.The wormwood based biomass activated carbon being prepared has porous structure and larger specific surface area, there is stronger adsorption capacity, and preparation process is simple to the polluter in water environment, adsorption process is controllable, cost is more cheap, therefore can be widely used in the pollution control of water body.
Description
Technical field
The present invention relates to changing waste into resources to utilize and biomass carbon preparing technical field, and in particular to a kind of wormwood base biology
Activated carbon and preparation method thereof and its application.
Background technology
Wormwood is the common Chinese herbal medicine in the area such as China northeast, North China, East China, south China, southwest, contains more volatilization
The substances such as oil, polysaccharide, alkaloid have higher medical value, are welcomed by users, therefore extract essential oil using wormwood
It waits objects Quality Research increasing, has effectively pushed the rapid development of wormwood extraction of essential oil related industry, directly result in annual complete
State generates a large amount of wormwood slag.At present, remaining wormwood slag is mostly handled in a manner of burning or garbage loading embeading etc. after extraction of essential oil,
This can not only cause greenhouse effects, cause environmental pollution, and will also result in the significant wastage of wormwood slag resource, at the same occupy compared with
More precious land resources, so there is an urgent need to find a kind of novel recycling mode.
Quadracycline is widely applied as antibiotics medical, but because its abuse or direct emission cause
Water pollution situation also aggravate therewith.
Dyeing waste water has the characteristics that water is big, COD contents are big compared with the complicated fluctuation of high, water quality, coloration is higher, generally contains
There are dyestuff, soda acid, fiber impurity, inorganic salt and other material.The conventional processes of dyeing waste water are with physico-chemical process, biochemical process, chemistry
Based on the combined techniques of method and its technique, but it is difficult quilt due to the organic substance for containing such as phenyl ring, azo group in waste water
Microbial degradation, such as dealing with improperly can be because these poisonous and harmful substances are discharged into Environmental insults and natural environment damages.
Chromium because of metal its good glossiness, stronger corrosion resistance, are widely used in leather tanning, printing and dyeing and spinning
It knits, be electroplated and the industries such as national defense industry, directly result in a large amount of generations of high-concentration chromium-containing wastewater.Hexavalent chromium Cr (VI) has
There is stronger oxidisability, humans and animals are poisoned greatly, and toxicity is with variation of valence and different.The toxicity of hexavalent chromium
It is 100 times of trivalent chromic ion, and is easily absorbed by the body.Cr VI is usually deposited in the form of chromate or bichromate in the environment
There is stronger migration and higher toxicity, and toxicity can be enriched with along food chain, and then there is carcinogenesis to human body.
Therefore how being directed to the water body with above-mentioned pollutant and carrying out effective pollution control is the tight of correlative technology field
Compel subject.
Invention content
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of using wormwood slag as the complete of raw material
Complete environmentally protective wormwood based biomass activated carbon and preparation method thereof and its application.
The present invention provides a kind of preparation methods of wormwood based biomass activated carbon, which is characterized in that includes the following steps：
Step 1, raw material wormwood slag is put into drying box and processing is dried by predetermined drying temperature obtains wormwood slag
Powder；
The wormwood ground-slag aqueous acid of a concentration of 1mol/L is impregnated 6 hours, place is then dried by step 2
Reason obtains acidification wormwood ground-slag；
The acidification wormwood ground-slag is placed in Muffle furnace, predetermined activation is warming up to according to predetermined heating rate by step 3
Then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag to temperature after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and sieves, obtain by step 4
To wormwood based biomass activated carbon.
In the preparation method of wormwood based biomass activated carbon provided by the invention, it can also have the feature that：Its
In, predetermined drying temperature is 50~70 DEG C in step 1.
In the preparation method of wormwood based biomass activated carbon provided by the invention, it can also have the feature that：Its
In, predetermined drying temperature is 65~70 DEG C in step 1.
In the preparation method of wormwood based biomass activated carbon provided by the invention, it can also have the feature that：Its
In, aqueous acid is phosphate aqueous solution in step 2.
In the preparation method of wormwood based biomass activated carbon provided by the invention, it can also have the feature that：Its
In, predetermined carburizing temperature is 500~800 DEG C in step 3, and predetermined heating rate is 10 DEG C/min.
The present invention also provides the wormwood based biomass activated carbons that any one above-mentioned preparation method obtains.
Also, the present invention also provides application of the above-mentioned wormwood based biomass activated carbon in water pollutant is removed.
Application of the wormwood based biomass activated carbon provided by the invention in water pollutant is removed can also have in this way
Feature：Wherein, wormwood based biomass activated carbon with sewage by booked mixing ratio is mixed, is shaken at a temperature of 25 DEG C anti-
It answers 3 hours, the rotating speed of concussion is 150rpm, is then centrifuged for handling, and obtains the solution of removal pollutant, booked mixing ratio 1
(g):1~2 (L).
Application of the wormwood based biomass activated carbon provided by the invention in water pollutant is removed can also have in this way
Feature：Wherein, pollutant is any one in antibiotics, organic dyestuff or heavy metal ion.
Application of the wormwood based biomass activated carbon provided by the invention in water pollutant is removed can also have in this way
Feature：Wherein, antibiotics is quadracycline；Organic dyestuff is methyl orange；Heavy metal ion is hexavalent chromium
Cr(VI)。
The effect of invention
Wormwood based biomass activated carbon according to the present invention and preparation method thereof and its application, be using wormwood slag as
The preparation method of the acid soak limit oxygen activation of raw material, this method is simple for process, short preparation period, favorable repeatability, is wormwood slag
Recycling provide a kind of new method.The wormwood based biomass activated carbon being prepared has porous structure and larger
Specific surface area, there is stronger adsorption capacity to the polluter in water environment, and preparation process is simple, and adsorption process can
Control, cost is more cheap, therefore can be widely used in the pollution control of water body.
Specific embodiment
With reference to embodiments, a kind of preparation method of wormwood based biomass activated carbon according to the present invention is done into one
Walk explanation.
Experimental method used in following embodiments is conventional method unless otherwise specified；Used raw material, appearance
Device, equipment etc., are commercially available unless otherwise specified.
<Embodiment one>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 50 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
500 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 quadracycline in water removal is gone, including following
Step：
Step 1, the wormwood based biomass activated carbon and the quadracycline solution of 2L that 2g step 4 is obtained are (original dense
Spend for 20mg/L) it carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment two>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
600 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 quadracycline in water removal is gone, including following
Step：
Step 1, the wormwood based biomass activated carbon and the quadracycline solution of 2L that 2g step 3 is obtained are (original dense
Spend for 20mg/L) it carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment three>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
700 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 quadracycline in water removal is gone, including following
Step：
Step 1, the wormwood based biomass activated carbon and the quadracycline solution of 4L that 2g step 3 is obtained are (original dense
Spend for 20mg/L) it carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Example IV>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 70 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
800 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 quadracycline in water removal is gone, including following
Step：
Step 1, the wormwood based biomass activated carbon and the quadracycline solution of 4L that 2g step 3 is obtained are (original dense
Spend for 20mg/L) it carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment five>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 50 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
500 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 methyl orange in water removal is gone, including following step
Suddenly：
Step 1, by the methyl orange solution of wormwood based biomass activated carbon that 2g step 4 obtains and 2L, (original concentration is
It 20mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment six>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
600 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 methyl orange in water removal is gone, including following step
Suddenly：
Step 1, by the methyl orange solution of wormwood based biomass activated carbon that 2g step 3 obtains and 2L, (original concentration is
It 20mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment seven>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
700 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 methyl orange in water removal is gone, including following step
Suddenly：
Step 1, by the methyl orange solution of wormwood based biomass activated carbon that 2g step 3 obtains and 4L, (original concentration is
It 20mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment eight>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 70 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
800 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 methyl orange in water removal is gone, including following step
Suddenly：
Step 1, by the methyl orange solution of wormwood based biomass activated carbon that 2g step 3 obtains and 4L, (original concentration is
It 20mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment nine>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 50 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
500 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 hexavalent chromium Cr (VI) in water removal is gone, packet
Include following steps：
Hexavalent chromium Cr (VI) solution of step 1, the wormwood based biomass activated carbon that 2g step 4 is obtained and 2L
(original concentration 100mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment ten>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
600 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 hexavalent chromium Cr (VI) in water removal is gone, packet
Include following steps：
Hexavalent chromium Cr (VI) solution of step 1, the wormwood based biomass activated carbon that 2g step 3 is obtained and 2L
(original concentration 100mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment 11>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 65 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
700 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 hexavalent chromium Cr (VI) in water removal is gone, packet
Include following steps：
Hexavalent chromium Cr (VI) solution of step 1, the wormwood based biomass activated carbon that 2g step 3 is obtained and 4L
(original concentration 100mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
<Embodiment 12>
The present embodiment is the preparation method of wormwood based biomass activated carbon, is included the following steps：
Step 1,200g raw material wormwood slags are put into drying box and processing are dried at 70 DEG C obtain wormwood slag
Powder；
The wormwood ground-slag phosphate aqueous solution of a concentration of 1mol/L of 1L is impregnated 6 hours, is then placed in baking by step 2
Processing is dried at 65 DEG C and obtains acidification wormwood ground-slag for case；
The acidification wormwood ground-slag is placed in Muffle furnace, is warming up to according to 10 DEG C/min of heating rate by step 3
800 DEG C then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed with deionized water to pH neutrality, is finally dried and crosses 100 mesh by step 4
Screening, obtains wormwood based biomass activated carbon.
The application of the wormwood based biomass activated carbon obtained using step 4 hexavalent chromium Cr (VI) in water removal is gone, packet
Include following steps：
Hexavalent chromium Cr (VI) solution of step 1, the wormwood based biomass activated carbon that 2g step 3 is obtained and 4L
(original concentration 100mg/L) carries out being mixed to get mixed liquor；
The mixed liquor of step 1 is put into constant temperature oscillation case by step 2, concussion reaction 3 hours at a temperature of 25 DEG C, concussion
Rotating speed be 150rpm/ minutes；
Step 3 carries out centrifugal treating, obtains the solution of removal pollutant.
Embodiment is analyzed
The solution of obtained removal quadracycline, is respectively adopted spectrophotometry at 275nm in Examples 1 to 4,
The concentration of quadracycline in solution before and after adsorbing is detected, is computed obtaining following result：
The wormwood based biomass activated carbon of 500 DEG C of lower limit oxygen carbonizations is 6.0mg/ to the saturated adsorption capacity of quadracycline
g；
The wormwood based biomass activated carbon of 600 DEG C of lower limit oxygen carbonizations is 9.1mg/ to the saturated adsorption capacity of quadracycline
g；
The wormwood based biomass activated carbon of 700 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of quadracycline
28.4mg/g；
The wormwood based biomass activated carbon of 800 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of quadracycline
34.5mg/g。
The solution of obtained removal methyl orange, is respectively adopted spectrophotometry at 464nm, detects in embodiment 5~8
Before and after absorption in solution methyl orange concentration, be computed obtaining following result：
The wormwood based biomass activated carbon of 500 DEG C of lower limit oxygen carbonizations is to the saturated adsorption capacity 15.1mg/g of methyl orange；
The wormwood based biomass activated carbon of 600 DEG C of lower limit oxygen carbonizations is to the saturated adsorption capacity 31.5mg/g of methyl orange；
The wormwood based biomass activated carbon of 700 DEG C of lower limit oxygen carbonizations is to the saturated adsorption capacity 38.9mg/g of methyl orange；
The wormwood based biomass activated carbon of 800 DEG C of lower limit oxygen carbonizations is to the saturated adsorption capacity 39.8mg/g of methyl orange.
In embodiment 9~12 it is obtained removal hexavalent chromium Cr (VI) solution, be respectively adopted spectrophotometry in
At 540nm, the concentration of Cr (VI) ion in solution before and after adsorbing is detected, is computed obtaining following result：
The wormwood based biomass activated carbon of 500 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of Cr (VI) ion
27.8mg/g；
The wormwood based biomass activated carbon of 600 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of Cr (VI) ion
36.5mg/g；
The wormwood based biomass activated carbon of 700 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of Cr (VI) ion
71.2mg/g；
The wormwood based biomass activated carbon of 800 DEG C of lower limit oxygen carbonization is to the saturated adsorption capacity of Cr (VI) ion
78.7mg/g。
The microstructure data analysis of wormwood based biomass activated carbon
The wormwood based biomass charcoal prepared by carburizing temperature different in comparative example 1~12：In 500-800
It in the range of DEG C, is increased with carburizing temperature, the specific surface area and pore volume of sample increase therewith, refer to table 1.
Table 1
Note：Wherein WACX represents wormwood based biomass activated carbon, and X represents preparation temperature.
In addition, wormwood based biomass activated carbon can be detected by ICP (inductive coupling plasma emission spectrograph)
In addition to there are more alkali metal element, there is also have more Fe elements.
The beneficial effect and effect of embodiment
Wormwood based biomass activated carbon according to the present invention and preparation method thereof and its application, be using wormwood slag as
The preparation method of the acid soak limit oxygen activation of raw material, this method is simple for process, short preparation period, favorable repeatability, is wormwood slag
Recycling provide a kind of new method.The wormwood based biomass activated carbon being prepared has porous structure and larger
Specific surface area, there is stronger adsorption capacity to the polluter in water environment, and preparation process is simple, and adsorption process can
Control, cost is more cheap, therefore can be widely used in the pollution control of water body.
Further, wormwood based biomass activated carbon has good suction to quadracycline, methyl orange, the Cr (VI) in water
Attached effect.
Claims (10)
1. a kind of preparation method of wormwood based biomass activated carbon, which is characterized in that include the following steps：
Step 1, raw material wormwood slag is put into drying box and processing is dried by predetermined drying temperature obtains wormwood ground-slag；
The wormwood ground-slag aqueous acid of a concentration of 1mol/L is impregnated 6 hours, is then dried and handles by step 2
To acidification wormwood ground-slag；
The acidification wormwood ground-slag is placed in Muffle furnace, predetermined activation temperature is warming up to according to predetermined heating rate by step 3
Then constant temperature 3 hours, natural cooling obtain activation wormwood ground-slag after dropping to room temperature；
The activation wormwood ground-slag is washed to pH neutrality with deionized water, is finally dried and sieves, obtain by step 4
Wormwood based biomass activated carbon.
2. according to the method described in claim 1, it is characterized in that：
Wherein, predetermined drying temperature described in step 1 is 50~70 DEG C.
3. according to the method described in claim 2, it is characterized in that：
Wherein, predetermined drying temperature described in step 1 is 65~70 DEG C.
4. according to the method described in claim 1, it is characterized in that：
Wherein, aqueous acid described in step 2 is phosphate aqueous solution.
5. according to the method described in claim 1, it is characterized in that：
Wherein, predetermined activation temperature described in step 3 is 500~800 DEG C, and the predetermined heating rate is 10 DEG C/min.
6. the preparation-obtained wormwood based biomass activated carbon of preparation method as claimed in any of claims 1 to 5.
7. application of the wormwood based biomass activated carbon according to claim 6 in water pollutant is removed.
8. application of the wormwood based biomass activated carbon according to claim 7 in water pollutant is removed, feature exist
In：
Wherein, the wormwood based biomass activated carbon is mixed with the sewage by booked mixing ratio, at a temperature of 25 DEG C
Concussion reaction 3 hours, the rotating speed of concussion is 150rpm, is then centrifuged for handling, and obtains the solution of removal pollutant, described predetermined mixed
Composition and division in a proportion is 1 (g):1~2L).
9. application of the wormwood based biomass activated carbon according to claim 7 in water pollutant is removed, feature exist
In：
Wherein, the pollutant is any one in antibiotics, organic dyestuff or heavy metal ion.
10. application of the wormwood based biomass activated carbon according to claim 9 in water pollutant is removed, feature exist
In：
Wherein, the antibiotics is quadracycline；
The organic dyestuff is methyl orange；
The heavy metal ion is hexavalent chromium Cr (VI).
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