CN110368900A - A kind of bamboo charcoal modified material and its preparation method and application - Google Patents
A kind of bamboo charcoal modified material and its preparation method and application Download PDFInfo
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- 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
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- 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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- 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
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
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- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
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- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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- C—CHEMISTRY; METALLURGY
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
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Abstract
The present invention relates to a kind of bamboo charcoal modified materials and its preparation method and application, the bamboo charcoal modified material is using bamboo charcoal as carrier, load manganese element and magnetic particle, wherein the mass content of the manganese element is 30-40%, the magnetic particle is the oxide of iron, and wherein iron accounts for the 1-10% of the bamboo charcoal modified material gross weight.Preparation method includes bamboo charcoal pretreatment, the preparation and calcining of presoma, and prepared bamboo charcoal modified material application is in sewage treatment, and processing speed is fast at normal temperature, high treating effect, and the coloration of landfill leachate can be effectively reduced, and removes stink；Degradation rate to the half an hour at normal temperature of the methyl orange in waste water from dyestuff is more than 95%.
Description
Technical field
The present invention relates to functional material technology of preparing, especially a kind of bamboo charcoal modified material and its preparation method and application.
Background technique
With economic development, China's rubbish, which generates total amount, to be aggravated rapidly, wherein landfill is widely used with burning disposal.But two
Person can generate that liquid coloration is high, stink is big, the complicated intractable landfill leachate of pollutant component.For example aerobic place of conventional processes
Reason etc., degradation effect is limited；And novel process is such as concentrated, still remaining high toxic concentrate.Advanced oxidation is used at present
Landfill leachate treatment is carried out, there is practical significance.Its key is that the pollutant in landfill leachate can be promoted normal in room temperature
The catalyst of advanced oxidation occurs for pressure.
China's bamboo resource is abundant, and bamboo product volume is big, therefore bamboo surplus material of processing material is more, is done using such material
Bamboo charcoal out plays the role of energy-saving and emission-reduction, and inexpensive.Bamboo charcoal is due to just will appear porous state, phase in Natural growth process
Compared with coking coal active carbon, there is preferable specific surface area.Bamboo charcoal is usually used in gas absorption at present, and the formaldehyde of such as automobile or house is inhaled
It is attached etc., but its economic value is limited, it is less in the practice of sewage treatment field, the reason is that, bamboo charcoal can in sewage
In a manner of physical absorption in conjunction with pollutant, adsorption efficiency is low.
Chinese invention patent application CN 108017219A discloses a kind of magnetic with fluoride in efficient absorption aqueous solution
Property adsorbent material, component includes: host material 60%-75%；Magnetic adsorbent 10%-20%；Binder 5-10%；Activity
Charcoal 3%-8%；Anion exchange resin 2%-8%；Wherein, the magnetic adsorbent is prepared by following methods:
Step 1): a certain amount of molysite, nickel salt, manganese salt are weighed respectively and is put into beaker；It is added and said mixture quality
Volume ratio is the water of 1g/5mL, is stirred well to dissolution；
Step 2): a certain amount of chelating agent then is added in Xiang Shangshu aqueous solution, after mixing well, alkali is added into system
The pH value of solution is adjusted to 8-10, then reaction kettle is put into baking oven and carries out hydro-thermal reaction；
Step 3): the resulting product of step 2) being filtered, is washed, is dried and high temperature sintering, obtains the magnetism
Adsorbent material.
The material production cost is higher, and is handled only for the fluorine ion in water, small with field, in general produces
The sexual valence of product is relatively low.
Summary of the invention
The purpose of the invention is to overcome the problems, such as that existing charcoal is low for sewage treating efficiency, a kind of bamboo is provided
Carbon modified material and its preparation method and application.
In the present invention, manganese can be preferably formed due to the microcellular structure of bamboo charcoal rule using bamboo charcoal as absorption carrier
Base magnetic material.
Difficult point of the invention is the manganese base magnetic material for being formed as stable, haveing excellent performance, wherein bamboo charcoal need to be carried out first
Pretreatment, by crushing and washing, to guarantee the effect of later period load.
Magnetic particle is preferably Fe3O4, and freshly prepd Fe3O4 has a preferably load effect, it is preferred the preparation method comprises the following steps:
FeSO4It being dissolved in deionized water, PVP is added, heating stirring reacts 1h to 100 degree, is then slowly dropped into NaOH, precipitating is generated,
Then continue heating stirring 0.5h. centrifugation, remove supernatant, cleaned with deionized water.Sediment drying obtains Fe3O4 magnetic particles
Son.
In the preparation method of bamboo charcoal modified material of the present invention, calcination temperature is 80-120 DEG C in step 3, preferably
90-110℃.Lower than 80 degree, it is difficult to form manganese dioxide, be higher than 120 degree, the manganese dioxide of formation is not required crystal form.
Concrete scheme is as follows:
A kind of bamboo charcoal modified material, the bamboo charcoal modified material load manganese element and magnetic particle using bamboo charcoal as carrier,
Wherein the mass content of the manganese element is 30-40%, and the magnetic particle is the oxide of iron, and wherein iron accounts for the bamboo charcoal and changes
The 1-10% of property material gross weight.
Further, the manganese element exists in the form of+4 valence manganese ions in the bamboo charcoal modified material.
Further, the magnetic particle is Fe3O4, partial size 10-100nm.
A kind of preparation method of the bamboo charcoal modified material, comprising the following steps:
Step 1: bamboo charcoal being crushed, cleaning to neutrality obtains bamboo charcoal powder；
Step 2: KMnO is added in the bamboo charcoal powder obtained to step 14、MnSO4And magnetic particle, shaking table oscillation is carried out, then
Cleaning, drying, obtain powdered presoma；
Step 3: the presoma that step 2 is obtained is calcined, and obtains the bamboo charcoal modified material.
Further, in the step 1, bamboo charcoal powder particle diameter is 50-100 mesh.
Further, magnetic particle is Fe in the step 23O4, preparation method includes the following steps: ferrous salt is molten
In deionized water, PVP is added, heating stirring is reacted, and alkaline matter is then added, and generates precipitating, continues heating stirring
After be centrifuged, remove supernatant, sediment dries after being cleaned with deionized water, obtains magnetic particle.
Further, the dosage mass ratio of the ferrous salt and PVP are 1:2-1:4, and the temperature of heating stirring after PVP is added
It is 90-110 DEG C, after reacting 0.5-1.5, sodium hydroxide is added, continues to be heated to 90-110 DEG C to be stirred to react 0.3-0.6h, from
The heart removes supernatant, and sediment is dried after being cleaned with deionized water, obtains magnetic particle.
Further, each raw material dosage ratio in the step 2 are as follows: bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetic particle
Mass ratio is 2-4:2-3:1-2:0.5-1；
Optional, the temperature that shaking table vibrates in the step 2 is 25-35 DEG C, time 2-4h；
Optional, the temperature calcined in the step 3 is 80-120 DEG C, time 2-4h.
The purposes of bamboo charcoal modified material described in a kind of reduces sewage for removing peculiar smell and pollutant in sewage
Coloration, or the COD content of sewage is reduced, the sewage includes landfill leachate, waste water from dyestuff.
Further, including: by the method that the bamboo charcoal modified material is used to handle sewage will be described in 0.1-0.5g
Bamboo charcoal modified material is put into 500 milliliters for the treatment of sewages, is stirred evenly, and 0.1-0.2mol peroxy-monosulfate is added, and reacts 10-
30 minutes.
The utility model has the advantages that
In the present invention, using the bamboo charcoal of discarded bamboo wood preparation as primary raw material, after modified, manganese ion and magnetic have been loaded
Property particle only need dozens of minutes that can reach more excellent at normal temperature with the high-efficient advantage of adsorbing coupled advanced oxidation
Treatment effect.
Bamboo charcoal modified material of the present invention when applying to wastewater treatment, can be catalyzed/activate peroxy-monosulfate PMS and release
Potentiometric titrations and hydroxyl radical free radical are put, peculiar smell and pollutant are effectively removed, enhances water treatment effect.Wherein, manganese itself
There is the effect for further promoting excitation peroxy-monosulfate release potentiometric titrations after combining with catalytic effect and iron ion.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing will be briefly described below, it should be apparent that,
The accompanying drawings in the following description merely relates to some embodiments of the present invention, rather than limitation of the present invention.
Fig. 1 is the XRD diagram for the magnetic particle that one embodiment of the invention 5 provides；
Fig. 2 is the XRD diagram for the bamboo charcoal modified material that one embodiment of the invention 5 provides；
Fig. 3 is the SEM figure for the bamboo charcoal powder that one embodiment of the invention 5 provides；
Fig. 4 is the SEM figure for the bamboo charcoal modified material that one embodiment of the invention 5 provides；
Fig. 5 is the EDX figure for the bamboo charcoal powder that one embodiment of the invention 5 provides；
Fig. 6 is the EDX figure for the bamboo charcoal modified material that one embodiment of the invention 5 provides；
Fig. 7 is the magnetic effect figure for the bamboo charcoal modified material that one embodiment of the invention 6 provides；
Fig. 8 is the magnetic effect figure for another bamboo charcoal modified material that one embodiment of the invention 6 provides.
Specific embodiment
The preferred embodiment of the present invention is described in more detail below.Although the following describe preferred implementations of the invention
Mode, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by the embodiments set forth herein.It is real
It applies and particular technique or condition person is not specified in example, according to the literature in the art described technology or conditions or according to product
Specification carries out.Reagents or instruments used without specified manufacturer, being can be with conventional products that are commercially available.Under
In the embodiment in face, such as it is not known and illustrates, " % " refers both to weight percent.
Embodiment 1
Bamboo charcoal modified material is prepared according to the following steps:
Step 1: bamboo charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Bamboo charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP, FeSO is added4Dosage mass ratio with PVP is 1:3, heating stirring
To 100 degree, 1h is reacted, is then slowly dropped into NaOH, generates precipitating, then continues heating stirring 0.5h.Centrifugation removes supernatant
Liquid is cleaned with deionized water.Sediment drying obtains Fe3O4 magnetic particle.
KMnO is added in bamboo carbon powder4、MnSO4And magnetic particle, wherein bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetism
The mass ratio of particle is 3:1.5:0.6:0.8, and temperature is 25-35 DEG C, and shaking table vibrates 3h, is cleaned using deionized water, is then put
Enter thermostatic drying chamber, 60 degree drying 24 hours, obtain powdered presoma.
Step 3: presoma being calcined, 100 degree of calcining 3h obtain bamboo charcoal modified material.
Embodiment 2
Bamboo charcoal modified material is prepared according to the following steps:
Step 1: bamboo charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Bamboo charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP, FeSO is added4Dosage mass ratio with PVP is 1:2, heating stirring
To 90 degree, 1.5h is reacted, is then slowly dropped into NaOH, generates precipitating, then continues heating stirring 0.6h. centrifugation, removes supernatant
Liquid is cleaned with deionized water.Sediment drying obtains Fe3O4 magnetic particle.
KMnO is added in bamboo carbon powder4、MnSO4And magnetic particle, wherein bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetism
The mass ratio of particle is 2:2:1:0.5, and temperature is 25-35 DEG C, and shaking table vibrates 3h, is cleaned using deionized water, is subsequently placed into perseverance
Warm drying box, 60 degree drying 24 hours, obtain powdered presoma.
Step 3: presoma being calcined, 120 degree of calcining 2h obtain bamboo charcoal modified material.
Embodiment 3
Bamboo charcoal modified material is prepared according to the following steps:
Step 1: bamboo charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Bamboo charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP, FeSO is added4Dosage mass ratio with PVP is 1:4, heating stirring
To 110 degree, 0.5h is reacted, is then slowly dropped into NaOH, generates precipitating, then continues heating stirring 0.3h.Centrifugation removes supernatant
Liquid is cleaned with deionized water.Sediment drying obtains Fe3O4 magnetic particle.
KMnO is added in bamboo carbon powder4、MnSO4And magnetic particle, wherein bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetism
The mass ratio of particle is 4:3:2:1, and temperature is 25-35 DEG C, and shaking table vibrates 3h, is cleaned using deionized water, is subsequently placed into constant temperature
Drying box, 60 degree drying 24 hours, obtain powdered presoma.
Step 3: presoma being calcined, 80 degree of calcining 4h obtain bamboo charcoal modified material.
Embodiment 4
Bamboo charcoal modified material is prepared according to the following steps:
Step 1: bamboo charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Bamboo charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP, FeSO is added4Dosage mass ratio with PVP is 1:3, heating stirring
To 105 degree, 1h is reacted, is then slowly dropped into NaOH, generates precipitating, then continues heating stirring 0.5h.Centrifugation removes supernatant
Liquid is cleaned with deionized water.Sediment drying obtains Fe3O4 magnetic particle.
KMnO is added in bamboo carbon powder4、MnSO4And magnetic particle, wherein bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetism
The mass ratio of particle is 3:2:1:0.5, and temperature is 25-35 DEG C, and shaking table vibrates 3h, is cleaned using deionized water, is subsequently placed into perseverance
Warm drying box, 60 degree drying 24 hours, obtain powdered presoma.
Step 3: presoma being calcined, 110 degree of calcining 3h obtain bamboo charcoal modified material.
Embodiment 5
XRD detection is carried out to the magnetic particle prepared in 1 step 2 of embodiment, sees Fig. 1.Simultaneously in 1 step 3 of embodiment
The bamboo charcoal modified material of preparation carries out XRD detection, sees Fig. 2.From the comparison of Fig. 1 and Fig. 2 it can be found that magnetic highest in Fig. 1
Peak is equally present on the bamboo charcoal modified material of Fig. 2, illustrates the successful load of magnetic particle.
SEM survey is carried out respectively to the bamboo charcoal modified material for obtaining bamboo charcoal powder in 1 step 1 of embodiment, being prepared in step 3
Examination, is as a result shown in Fig. 3 and Fig. 4, therefrom it can be seen that, after modification, surface has increased a large amount of round granular objects newly to bamboo carbon powder
Matter, particulate material are that manganese@iron ion assembles product, illustrate to load successfully.
EDX survey is carried out respectively to the bamboo charcoal modified material for obtaining bamboo charcoal powder in 1 step 1 of embodiment, being prepared in step 3
Examination, as a result see Fig. 5 and Fig. 6, therefrom it can be seen that, bamboo charcoal powder major embodiment carbon peak before modified, and it is modified it can be seen that
The weight percent of manganese element and ferro element, each element is as follows:
The analysis of table 1EDS element ratio
| Element | Weight percent % |
| C | 33.59 |
| O | 18.33 |
| K | 2.2 |
| Mn | 39.79 |
| Fe | 6.1 |
| Total amount | 100 |
Embodiment 6
Prepared bamboo charcoal modified material has magnetism, can assemble, be adsorbed on iron block, effect picture is shown in Fig. 7-Fig. 8.
500 millis are added in the aqueous solution of bamboo charcoal modified material, 20 milliliters of 0.1 mole of every liter of PMS prepared by 0.3g embodiment 1
It rises in landfill leachate, reacts at room temperature after twenty minutes, landfill leachate odorless, coloration reduces.Specifically, landfill leachate
Stoste coloration is 1367 times, is 32 times after processing, and landfill leachate stoste COD is 2963mg/L, is 81mg/L after processing.
Embodiment 7
500 milliliters of 100mg/ are added in bamboo charcoal modified material, 10 milliliters of 0.1 mole of every liter of PMS prepared by 0.3g embodiment 1
In the methyl orange aqueous solution of L, after reaction 30 minutes, methyl orange degradation efficiency is 95.3%.(content of methyl orange uses ultraviolet point
Light photometer measures, and calculates according to mark is bent)
Comparative example 1
Modified material 1 is prepared referring to embodiment 1, the method is as follows:
Step 1: charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP is added, heating stirring is reacted 1h, be then slowly dropped into 100 degree
NaOH generates precipitating, then continues heating stirring 0.5h. centrifugation, removes supernatant, cleaned with deionized water.Sediment drying
Obtain Fe3O4 magnetic particle.
KMnO is added in charcoal powder4、MnSO4And magnetic particle, shaking table are vibrated 3h, are cleaned using deionized water, then
Be put into thermostatic drying chamber, 60 degree drying 24 hours, obtain powdered presoma.
Step 3: presoma being calcined, 100 degree of calcining 3h, obtain modified material 1.
0.3g modified material 1 is added in 500 milliliters of landfill leachates, is reacted at room temperature after twenty minutes, landfill leachate
Stoste coloration is 1321 times, is 1035 times after processing, and landfill leachate stoste COD is 2963mg/L, is 2126mg/L after processing.
Comparative example 2
Modified material 2 is prepared referring to embodiment 1, comprising the following steps:
Step 1: bamboo charcoal being crushed, taking partial size is 50-100 mesh, is cleaned using deionized water, until pH value is neutrality, is obtained
Bamboo charcoal powder.
Step 2:FeSO4It is dissolved in deionized water, PVP is added, heating stirring is reacted 1h, be then slowly dropped into 100 degree
NaOH generates precipitating, then continues heating stirring 0.5h. centrifugation, removes supernatant, cleaned with deionized water.Sediment drying
Obtain Fe3O4 magnetic particle.
Magnetic particle is added in bamboo carbon powder, shaking table is vibrated 3h, cleaned using deionized water, be subsequently placed into freeze-day with constant temperature
Case, 60 degree drying 24 hours, obtain presoma.
Step 3: presoma being calcined, 100 degree of calcining 3h, obtain modified material 2.
Modified material 2 is applied into landfill leachate treatment, the method is as follows:
The aqueous solution of 0.3g modified material, 20 milliliters of 0.1 mole of every liter of PMS is added in 500 milliliters of landfill leachates, room
After twenty minutes, it is 934 times after processing that landfill leachate stoste coloration is 1435 times to the lower reaction of temperature, and landfill leachate stoste COD is
3024mg/L is 1894mg/L after processing.
Comparative example 3
Modified material 2 is applied into landfill leachate treatment, the method is as follows:
0.3g modified material 2 is added in 500 milliliters of landfill leachates, is reacted at room temperature after twenty minutes, landfill leachate
Stoste coloration is 1378 times, is 1067 times after processing, and landfill leachate stoste COD is 2995mg/L, is 2217mg/L after processing.
Comparative example 4
It will apply to landfill leachate treatment, the method is as follows:
Bamboo charcoal modified material prepared by 0.3g embodiment 1 is added in 500 milliliters of landfill leachates, reacts 20 points at room temperature
Zhong Hou, landfill leachate stoste coloration are 1287 times, are 1081 times after processing, and landfill leachate stoste COD is 2894mg/L, place
It is 2013mg/L after reason.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of bamboo charcoal modified material, it is characterised in that: the bamboo charcoal modified material using bamboo charcoal as carrier, load manganese element and
Magnetic particle, wherein the mass content of the manganese element is 30-40%, the magnetic particle is the oxide of iron, and wherein iron accounts for
The 1-10% of the bamboo charcoal modified material gross weight.
2. bamboo charcoal modified material according to claim 1, it is characterised in that: the manganese element is in the bamboo charcoal modified material
In in the form of+4 valence manganese ions exist.
3. bamboo charcoal modified material according to claim 1 or 2, it is characterised in that: the magnetic particle is Fe3O4, partial size is
10-100nm。
4. a kind of preparation method of bamboo charcoal modified material of any of claims 1-3, it is characterised in that: including following
Step:
Step 1: bamboo charcoal being crushed, cleaning to neutrality obtains bamboo charcoal powder；
Step 2: KMnO is added in the bamboo charcoal powder obtained to step 14、MnSO4And magnetic particle, shaking table oscillation is carried out, it is then clear
It washes, dry, obtain powdered presoma；
Step 3: the presoma that step 2 is obtained is calcined, and obtains the bamboo charcoal modified material.
5. the preparation method of bamboo charcoal modified material according to claim 4, it is characterised in that: in the step 1, bamboo charcoal powder
Particle diameter is 50-100 mesh.
6. the preparation method of bamboo charcoal modified material according to claim 4, it is characterised in that: magnetic particles in the step 2
Son is Fe3O4, preparation method includes the following steps: ferrous salt being dissolved in deionized water, PVP is added, heating stirring carries out
Alkaline matter is then added in reaction, generates precipitating, is centrifuged after continuing heating stirring, removes supernatant, sediment deionized water
It is dried after cleaning, obtains magnetic particle.
7. the preparation method of bamboo charcoal modified material according to claim 6, it is characterised in that: the ferrous salt and PVP's
Dosage mass ratio is 1:2-1:4, and the temperature of heating stirring is 90-110 DEG C after addition PVP, and after reacting 0.5-1.5, hydrogen-oxygen is added
Change sodium, continue to be heated to 90-110 DEG C to be stirred to react 0.3-0.6h, be centrifuged, remove supernatant, sediment is cleaned with deionized water
After dry, obtain magnetic particle.
8. the preparation method of bamboo charcoal modified material according to claim 5, it is characterised in that: each raw material in the step 2
Amount ratio are as follows: bamboo charcoal powder, potassium permanganate, manganese sulfate, magnetic particle mass ratio be 2-4:2-3:1-2:0.5-1；
Optional, the temperature that shaking table vibrates in the step 2 is 25-35 DEG C, time 2-4h；
Optional, the temperature calcined in the step 3 is 80-120 DEG C, time 2-4h.
9. the purposes of bamboo charcoal modified material described in claim 1-3, it is characterised in that: for removing peculiar smell and dirt in sewage
Object is contaminated, reduces the coloration of sewage, or reduce the COD content of sewage, the sewage includes landfill leachate, waste water from dyestuff.
10. the purposes of bamboo charcoal modified material according to claim 9, it is characterised in that: by the bamboo charcoal modified material
Method for handling sewage includes: to put into bamboo charcoal modified material described in 0.1-0.5g in 500 milliliters for the treatment of sewages, is stirred
It mixes uniformly, 0.1-0.2mol peroxy-monosulfate is added, react 10-30 minutes.
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| CN111530421A (en) * | 2020-05-13 | 2020-08-14 | 内蒙古民族大学 | Biochar for heavy metal adsorption and preparation method thereof |
| CN115318260A (en) * | 2022-07-26 | 2022-11-11 | 山东大学 | Manganese and cyclodextrin co-modified bamboo charcoal material and preparation method and application thereof |
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| CN111530421A (en) * | 2020-05-13 | 2020-08-14 | 内蒙古民族大学 | Biochar for heavy metal adsorption and preparation method thereof |
| CN115318260A (en) * | 2022-07-26 | 2022-11-11 | 山东大学 | Manganese and cyclodextrin co-modified bamboo charcoal material and preparation method and application thereof |
| CN115318260B (en) * | 2022-07-26 | 2024-01-12 | 山东大学 | Manganese and cyclodextrin co-modified bamboo charcoal material and preparation method and application thereof |
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