CN110217772A - A kind of modification biological charcoal and its preparation method and application - Google Patents
A kind of modification biological charcoal and its preparation method and application Download PDFInfo
- Publication number
- CN110217772A CN110217772A CN201910396279.2A CN201910396279A CN110217772A CN 110217772 A CN110217772 A CN 110217772A CN 201910396279 A CN201910396279 A CN 201910396279A CN 110217772 A CN110217772 A CN 110217772A
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- charcoal
- modification biological
- soil
- biological charcoal
- biomass material
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
Abstract
The present invention provides a kind of modification biological charcoal and its preparation method and application, the charcoal is prepared by biomass material and molysite, and preparation process includes: that biomass material thermal cracking is obtained charcoal；The obtained charcoal is sufficiently impregnated the raw material after being impregnated in iron salt solutions；By roasting obtains the modification biological charcoal at 450-600 DEG C under atmosphere of inert gases after the raw material drying after dipping.The release of carbon dioxide in soil can be significantly reduced in modification biological charcoal of the invention, facilitates the loss for reducing soil organic matter, can also improve the accumulation of soil organic matter, improves soil quality, buffer the influence of the greenhouse effects to increasingly sharpen.Preparation method of the invention is at low cost, simple process.
Description
Technical field
The invention belongs to biological carbon materials preparation fields, and in particular to a kind of modification biological charcoal and preparation method thereof and answer
With.
Background technique
Carbon base in soil is the maximum carbon storehouse of terrestrial ecosystems, and small variation can be to Atmospheric CO2Concentration generates important
Influence, play an important role in global carbon.Charcoal not only has Carbon stock ability, and can reduce or
Inhibit CO in soil2Discharge.The application of charcoal can increase the content of soil organic matter, and produce between the soil organism
Raw priming effect.
The application of existing plurality of articles report display charcoal is for reducing CO in soil at present2Discharge there is certain effect
Fruit, as Ke Yuejin et al. is published in " environmental science " entitled, " rice straw charcoal is to arable soil organic carbon and its CO2
The application of the studies have shown that rice straw charcoal of the document of the influence of release " can reduce arable soil CO2Discharge, most
Big emission reduction rate is up to 41.05%.Zhang Jie et al. is published in " agro-environment science journal " entitled " stalk, lignin and its life
Object charcoal is to moisture soil CO2The studies have shown that stalk and lignin of release and the influence of organic carbon content " document will cause CO2Burst size
Increase, and stalk and the charcoal of lignin preparation can increase soil organic carbon, reduce CO2Burst size, therefore biology
Charcoal is agricultural to have positive effect in terms of carbon fixation and emission reduction.But Guo Yanliang et al. is published in the entitled " biology of " environmental science "
The document of the influence that semiarid zone Soil Trace Gases are discharged in charcoal addition " schedules to last semiarid zone agricultural land soil
Research in 6 months but shows the soil handled through charcoal, CO2Emission flux is presented with the increase of charcoal additive amount to be increased
Add trend；Hua Li etc. is published in " Agriculture of Anhui science " entitled, and " biomass carbon is inputted to soil CO2What release influenced grinds
Study carefully " document research, the desk research test discovery that coconut husk charcoal (600 DEG C) is manured into soil, to apply charcoal amount be 1%~
In 5% range, soil CO2Burst size increases with the increase for applying charcoal amount.It can be seen that charcoal is to soil CO2The influence of release is still
There are uncertainties.
Summary of the invention
A kind of modification biological charcoal and its system are provided it is an object of the invention to overcome in place of the shortcomings of the prior art
Preparation Method and application.
To achieve the above object, the technical scheme adopted by the invention is as follows: a kind of modification biological charcoal, the modification biological charcoal by
Biomass material and molysite preparation, preparation process includes: that biomass material thermal cracking is obtained charcoal；By the obtained life
Object charcoal is sufficiently impregnated the raw material after being impregnated in iron salt solutions；By after the raw material drying after dipping under atmosphere of inert gases
Roasting obtains the modification biological charcoal at 450-600 DEG C.
Modification biological charcoal of the invention can effectively reduce CO in soil2Rate of release.
Preferably, the biomass material is selected from stalk, leaf or herbaceous plant.
Preferably, the molysite is at least one of ferric nitrate, ferrous sulfate, iron chloride.
Preferably, the dosage mass ratio of the biomass material and molysite is 1:1-2.
Preferably, the biomass material is one of rice straw, Poplar leaves, Chinese silvergrass.
Preferably, the temperature of biomass material thermal cracking is 280-320 DEG C.
Preferably, the temperature of biomass material thermal cracking is 300 DEG C.
Preferably, charcoal is sufficiently impregnated in the time of iron salt solutions being 20-24h.
Preferably, the mass fraction of solute is 33%-50% in the iron salt solutions for impregnating charcoal.
The present invention also provides a kind of preparation methods of any of the above-described modification biological charcoal, and the method includes following steps
It is rapid:
(1) thermal cracking obtains charcoal after crushing biomass material；
(2) charcoal that step (1) obtains is sufficiently impregnated the raw material after being impregnated in iron salt solutions；
(3) raw material drying after dipping is obtained into dried material；
(4) dried material that step (3) obtains is roasted at 450-600 DEG C under atmosphere of inert gases described in obtaining
Modification biological charcoal.
Preferably, the temperature of thermal cracking is 280-320 DEG C in step (1), and the time of thermal cracking is 1-2h.
Preferably, the temperature of thermal cracking is 300 DEG C in step (1).
Preferably, the time that charcoal is sufficiently impregnated in step (3) is 20-24h.
Preferably, temperature dry in step (3) is 100-110 DEG C, and the dry time is 36-48h.
Preferably, it is warming up to 450-600 DEG C with the rate of 5-10 DEG C/min in step (4), keeps 1-2h roasting.
Preferably, the smashed granularity of biomass material is 80-100 mesh in step (1).
Preferably, the mass fraction of solute is 33%-50% in iron salt solutions in step (2).
The present invention also provides a kind of any of the above-described modification biological charcoal CO in reducing soil2Application side in discharge
Method.
Preferably, by as described in any of the above-described modification biological charcoal and soil launch to soil according to mass ratio 0.5%-1%
In earth, and modification biological charcoal is uniformly mixed with soil.
It is highly preferred that by as described in any of the above-described modification biological charcoal and soil according to mass ratio 0.8%-1% dispensing arrive
In soil, and modification biological charcoal is uniformly mixed with soil.
Modification biological charcoal, which is invested in soil, can effectively reduce CO in soil2Rate of release.
The beneficial effects of the present invention are: the present invention provides a kind of modification biological charcoals and its preparation method and application, originally
The release of carbon dioxide in soil can be significantly reduced in the modification biological charcoal of invention, facilitates the loss for reducing soil organic matter,
The accumulation of soil organic matter can also be improved, improves soil quality, buffers the influence of the greenhouse effects to increasingly sharpen.Of the invention
Preparation method is at low cost, simple process.
Detailed description of the invention
Fig. 1 is the phenogram of the modification biological charcoal of the embodiment of the present invention, and (a) is the modification biological charcoal of the embodiment of the present invention
SEM schemes, and is (b) the EDS spectrogram of the modification biological charcoal of the embodiment of the present invention.
Fig. 2 is the XRD diagram of the modification biological charcoal of the embodiment of the present invention.
Fig. 3 is the application effect figure of the modification biological charcoal of the embodiment of the present invention.
Fig. 4 is the application effect figure of the modification biological charcoal of the embodiment of the present invention.
Fig. 5 is the application effect figure of the modification biological charcoal of the embodiment of the present invention.
Specific embodiment
To better illustrate the object, technical solutions and advantages of the present invention, below in conjunction with specific embodiment to the present invention
It is described further.
Embodiment 1
The preparation method of modification biological charcoal as the embodiment of the present invention, the described method comprises the following steps:
(1) rice straw is crushed to after 80-100 mesh and obtains charcoal in 300 DEG C of thermal cracking 1-2h；
(2) charcoal that step (1) obtains is sufficiently impregnated the 20-24h in iron nitrate solution, the original after being impregnated
Material；
(3) raw material after dipping is dried to 36-48h at a temperature of 100-110 DEG C；
(4) dried material that step (3) obtains is placed in the quartzy bateau in tube furnace, under nitrogen gas atmosphere
It is warming up to 450-600 DEG C with the rate of 5-10 DEG C/min, 1-2h roasting is kept to obtain the modification biological charcoal；
Wherein, the mass fraction of solute is 33%-50% in iron salt solutions in step (2)；
The dosage of rice straw raw material and ferric nitrate is 1:1-2.
As shown in Figure 1 b, it is the EDS spectrogram for the modification biological charcoal that the present embodiment is prepared, shows the modification biological charcoal
Contain iron, carbon, phosphorus, silicon and oxygen element in structure, wherein iron content reaches 75.32%.
As shown in Fig. 2, the XRD diagram of the modification biological charcoal for embodiment, on spectrogram 2 θ=32.1 °, 35.5 °, 43.3 ° and
Occur diffraction maximum at 62.7 °, therefore can further determine that and introduce Fe in material3O4Phase.
Embodiment 2
The modification biological charcoal of one kind as embodiment of the present invention CO in reducing soil2Application method in discharge, institute
State method the following steps are included:
(1) by modification biological charcoal (Fe as described in Example 13O4- Biochar) and soil according to mass ratio 0.5% launch
It is uniformly mixed into soil, and by modification biological charcoal with soil；
(2) keeping soil moisture content is the 65% of field capacity, and cultivation temperature is (25 ± 1) DEG C, is cultivated.
Incubation carries out in the incubator, using the CO of Soil by Gas Chromatography2Discharge amount, detection culture 5 days,
11 days and 20 days CO2Discharge amount.
Unmodified charcoal (Biochar) is set as control experiment, as a result as shown in Figure 3.
Setting does not add charcoal as blank assay (Control group).
As shown in figure 3, in Initial stage of culture, the CO of charcoal group2It is obvious poor that rate of release has no compared with Control group
It is different, and the CO of modification biological charcoal group2Rate of release is declined compared with Control group.With the increase of incubation time, to training
Feeding the 11st day, the CO of charcoal group2Rate of release is higher than Control group instead, this may be due in charcoal
Easy decomposition components are more decomposed into CO2It is caused；And the CO of modification biological charcoal group2Rate of release then almost with Control
Group is suitable, is slightly larger than Control group, illustrates to can be reduced the easy decomposition ingredient in biological carbon materials on modification biological charcoal,
Make the carbon sequestration performance of material more preferably.By the 20th day of culture, since the easy decomposition ingredient in charcoal group has decomposed, three groups
CO2Rate of release does not have notable difference.
Embodiment 3
The modification biological charcoal of one kind as embodiment of the present invention CO in reducing soil2Application method in discharge, this
Unique difference of embodiment and embodiment 2 are as follows: by modification biological charcoal (Fe as described in Example 13O4- Biochar) it is pressed with soil
It launches according to mass ratio 0.8% and is uniformly mixed into soil, and by modification biological charcoal with soil.
Using the CO of Soil by Gas Chromatography25 days, 11 days and 20 days CO are cultivated in discharge amount, detection2Discharge amount.Knot
Fruit is as shown in Figure 4.
As shown in figure 4, in Initial stage of culture, the CO of charcoal group (Biochar)2Rate of release is omited compared with Control group
There are decline, but modification biological charcoal group (Fe3O4- Biochar) CO2The amplitude of rate of release decline is bigger.With incubation time
Increase, by the 11st day of culture, the CO of charcoal group2Rate of release is higher than blank assay (Control group) instead, and high
Rate of release when amount of application is 0.5%, this may be since the easy decomposition components in charcoal are more decomposed into
CO2It is caused；And the CO of modification biological charcoal group2Rate of release is then slightly below Control group, thus it is speculated that ferroso-ferric oxide loads to
It can be reduced the easy decomposition ingredient in biological carbon materials on charcoal, make the carbon sequestration performance of material more preferably.By the 20th day of culture, by
Easy decomposition ingredient in charcoal group has decomposed, the CO of charcoal group and Control group2Rate of release is not obvious
Difference, and modification biological charcoal group is then all lower than other two groups.As it can be seen that the carbon sequestration performance of the modification biological Carbon Materials is compared with ordinary student
Object charcoal is more preferable.
Embodiment 4
The modification biological charcoal of one kind as embodiment of the present invention CO in reducing soil2Application method in discharge, this
Unique difference of embodiment and embodiment 2 are as follows: by modification biological charcoal (Fe as described in Example 13O4- Biochar) it is pressed with soil
It launches according to mass ratio 1% and is uniformly mixed into soil, and by modification biological charcoal with soil.
Using the CO of Soil by Gas Chromatography25 days, 11 days and 20 days CO are cultivated in discharge amount, detection2Discharge amount.Knot
Fruit is as shown in Figure 5.
As shown in figure 5, in Initial stage of culture, the CO of charcoal group2Rate of release is declined slightly compared with Control group, but
The CO of modification biological charcoal group2Rate of release decline amplitude it is bigger, and than amount of application be 0.8% when rate of release it is smaller.With
The increase of incubation time, by the 11st day of culture, the CO of charcoal group2Rate of release is higher than Control group instead, this
It may be since the easy decomposition components in charcoal are more decomposed into CO2It is caused；And the CO of modification biological charcoal group2Release
Rate is then lower than Control group, illustrates to can be reduced the easy decomposition ingredient in biological carbon materials on modification biological charcoal, makes material
Carbon sequestration performance more preferably.By the 20th day of culture, since the easy decomposition ingredient in charcoal group has decomposed, the CO of three groups2
Rate of release does not have notable difference.
Illustrate that (5 days) modification biological charcoal of the invention and common charcoal can in a short time by the result of Fig. 3-5
Alleviate the rate of release of carbon dioxide in soil, and the effect of modification biological charcoal is better than the effect of common charcoal；Time is slightly long
Some (11 days) common charcoal charcoal will increase the rate of release of carbon dioxide in soil instead, and modification biological charcoal can
Keep slightly below or substantially with do not add charcoal soil in carbon dioxide rate of release；Illustrate that modification biological charcoal adds
It can be realized the effect for alleviating the rate of release of carbon dioxide in soil in a short time in soil, and the effect alleviated is better than general
Logical charcoal, and cause the rate of release of carbon dioxide in soil to increase with the extension of time, not will lead to charcoal such as
Big problem.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than protects to the present invention
The limitation of range is protected, although the invention is described in detail with reference to the preferred embodiments, those skilled in the art should
Understand, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the essence of technical solution of the present invention
And range.
Claims (10)
1. a kind of modification biological charcoal, which is characterized in that the modification biological charcoal is prepared by biomass material and molysite, preparation process
It include: that biomass material thermal cracking is obtained into charcoal；The obtained charcoal is sufficiently impregnated obtaining in iron salt solutions
Raw material after dipping；Described in roasting obtains at 450-600 DEG C under atmosphere of inert gases after the raw material drying after dipping
Modification biological charcoal.
2. modification biological charcoal according to claim 1, which is characterized in that the biomass material be selected from stalk, leaf or
Person herbaceous plant, the molysite are at least one of ferric nitrate, ferrous sulfate, iron chloride；The biomass material and molysite
Dosage mass ratio be 1:1-2.
3. modification biological charcoal according to claim 1, which is characterized in that the biomass material is rice straw, poplar
One of leaf, Chinese silvergrass；The temperature of biomass material thermal cracking is 280-320 DEG C；Charcoal is sufficiently impregnated in iron salt solutions
Time is 20-24h.
4. a kind of preparation method of modification biological charcoal a method according to any one of claims 1-3, the described method comprises the following steps:
(1) thermal cracking obtains charcoal after crushing biomass material；
(2) charcoal that step (1) obtains is sufficiently impregnated the raw material after being impregnated in iron salt solutions；
(3) raw material drying after dipping is obtained into dried material；
(4) dried material that step (3) obtains is roasted at 450-600 DEG C under atmosphere of inert gases and obtains the modification
Charcoal.
5. according to the method described in claim 4, it is characterized in that, in step (1) thermal cracking temperature be 280-320 DEG C, heat
The time of cracking is 1-2h.
6. according to the method described in claim 4, it is characterized in that, the time that charcoal is sufficiently impregnated in step (3) is 20-
24h。
7. dry according to the method described in claim 4, it is characterized in that, temperature dry in step (3) is 100-110 DEG C
Time be 36-48h.
8. according to the method described in claim 4, it is characterized in that, being warming up in step (4) with the rate of 5-10 DEG C/min
450-600 DEG C, keep 1-2h roasting；The smashed granularity of biomass material is 80-100 mesh in step (1)；It is hot in step (1)
The temperature of cracking is 300 DEG C；The mass fraction of solute is 33%-50% in iron salt solutions in step (2).
9. a kind of modification biological charcoal a method according to any one of claims 1-3 CO in reducing soil2Application method in discharge.
10. application method according to claim 9, which is characterized in that by modification biological charcoal a method according to any one of claims 1-3
It launches with soil according to mass ratio 0.5%-1% and is uniformly mixed into soil, and by modification biological charcoal with soil.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110684539A (en) * | 2019-10-24 | 2020-01-14 | 河南城建学院 | Conditioner for heavy metal contaminated soil and preparation method thereof |
| CN112876119A (en) * | 2021-02-09 | 2021-06-01 | 华蓝设计（集团）有限公司 | Cement-based material carbon-fixing internal curing agent and preparation and application thereof |
| CN114101310A (en) * | 2021-11-04 | 2022-03-01 | 生态环境部南京环境科学研究所 | Method for passivating lead-cadmium polluted farmland soil based on biochar-attapulgite compounding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114101310A (en) * | 2021-11-04 | 2022-03-01 | 生态环境部南京环境科学研究所 | Method for passivating lead-cadmium polluted farmland soil based on biochar-attapulgite compounding |
| CN114101310B (en) * | 2021-11-04 | 2022-08-26 | 生态环境部南京环境科学研究所 | Method for passivating lead-cadmium polluted farmland soil based on biochar-attapulgite compounding |
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