CN110102256A - A kind of preparation method and applications of Fe modification biological carbon composite - Google Patents
A kind of preparation method and applications of Fe modification biological carbon composite Download PDFInfo
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- CN110102256A CN110102256A CN201910326211.7A CN201910326211A CN110102256A CN 110102256 A CN110102256 A CN 110102256A CN 201910326211 A CN201910326211 A CN 201910326211A CN 110102256 A CN110102256 A CN 110102256A
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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
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
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- 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
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
A kind of preparation method and applications of Fe modification biological carbon composite, the present invention relates to the preparation method and applications fields of modification biological carbon composite.The technical issues of it is high that the invention solves the contents of N, P nutriment in the water-break of farmland, simple biological carbon materials, limited sorption capacity.Preparation method: using biomass as raw material, FeCl is utilized3By carrying out pyrolytic reaction in Muffle furnace, Fe modification biological carbon composite is obtained.Using: the composite material is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2.Preparation process of the present invention is simple to operation, and output capacity is up to 50% or more, it is easy to accomplish commercialization, method provide safe and efficient approach for the removal of N, P nutriment in the water-break of farmland.Fe modification biological carbon composite prepared by the present invention is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2.
Description
Technical field
The present invention relates to the preparation method and applications fields of modification biological carbon composite.
Background technique
Farmland water-break refers to that in agricultural production process, water is abandoned in the farmland as caused by precipitation and extensive flood irrigation, passes through
The forms such as rainwash, interflow enter gutter and are eventually returned in river or lake, have to river, lake etc. certain
Alimentation is a kind of important way for ensureing wetland water source.The upstream of the main feeder of Technique in Western Jilin Province Momoge marsh, has
A large amount of farmland, river and lake in wetland are subjected to the water-break in 2-3 surrounding farmland every year.Spring receives a small amount of upstream
Water-break；Wet season summer, to guarantee normal Agricultural Activities, extra farmland water-break can be largely discharged into wetland；In the autumn
Season harvesting front and back, can also receive a large amount of water-breaks of upstream.Farmland, irrigation canals and ditches, wetland three close proximity on space structure are formed
One entirety.But due to the unreasonable use of chemical fertilizer and pesticide, the content of N, P nutriment in the water-break of farmland is generally wanted
It is higher than river, it if being directly discharged into, will increase the content of nutriment in river, improve water body eutrophication degree.These water bodys
Into in wetland, wet land water quality is caused to deteriorate, species diversity is on the hazard, and causes huge danger to Wetland ecological service function
Evil.Therefore, before in farmland, water-break enters irrigation canals and ditches, river or lake, efficiently remove farmland water-break in excessive N, P nutriment at
For the key for ensuring the good water quality of wetland.About water pollution field of purification, existing processing method mainly has physical method, biology
Method, physical method is at high cost, removal efficiency is low, and bioanalysis is largely restricted by environmental condition, therefore pushes away on a large scale
Extensively using relatively difficult, absorption method is because its lower cost and higher removal rate receive more and more attention, commonly
Adsorbent has charcoal, zeolite, metal salt etc..But simple biological carbon materials, limited sorption capacity.Therefore, one kind is developed
It is high by the adsorption efficiency of substrate of charcoal, and the advanced composite material (ACM) of safety non-pollution, it has broad application prospects and pushes away
Wide value.
Summary of the invention
The invention solves the content of N, P nutriment in the water-break of farmland height, simple biological carbon materials, adsorption capacities
Limited technical problem, and a kind of preparation method and applications of Fe modification biological carbon composite are provided.
A kind of preparation method of Fe modification biological carbon composite, it is characterised in that this method specifically according to the following steps into
Row:
One, biomass material is successively cleaned, shredded, dried, grind and is sieved, obtain powdered biomass；
Two, by FeCl3The powdered biomass that solution and step 1 obtain is put into water bath with thermostatic control oscillation case and is uniformly mixed,
Obtain mixed solution；
Three, the mixed solution for obtaining step 2, is put into constant water bath box, controlled at 80~85 DEG C, carries out anti-
It answers, until mixed solution supernatant liquor disappears, is then transferred in baking oven, it is dry, obtain biological material；
Four, N is passed through into Muffle furnace2, the biological material that step 3 is obtained is transferred in porcelain crucible, and in N2It brushes
Under conditions of, porcelain crucible is put into Muffle furnace, then closed, temperature rises to 550~555 DEG C from room temperature in 10min, pyrolysis
Then 30~32min naturally rings to room temperature, add deionized water, and washing obtains composite material；
Five, the composite material that step 4 obtains successively is dried, milled and is sieved, obtain Fe modification biological charcoal composite wood
Material.
Further, in step 1 biomass material be one of corn stover, rice straw and wheat stalk or its
In several mixing.
Further, the size ﹤ 5cm of biomass material after being shredded in step 1；Drying temperature is 80~120 DEG C, drying
Time be 12~for 24 hours；The aperture of sieve is 0.22~0.45mm when sieving.
Further, FeCl in step 23FeCl in solution3Mass ratio with deionized water is 1: (10~20).
Further, powdered biomass and FeCl in step 23The mass volume ratio of solution is 1g: (8~10) mL.
Further, case is vibrated in water bath with thermostatic control in step 2, and control revolving speed is 150~180r/min, duration of oscillation 10
~12h.
Further, drying temperature is 80~120 DEG C in step 3, and drying time is 4~8h.
Further, drying temperature is 80~120 DEG C in step 5, and the aperture of sieve is 0.12~0.22mm when sieving.
Wherein, Muffle furnace keeps the closed anaerobic condition being able to maintain that in entire pyrolytic process in step 3.
The application of the Fe modification biological carbon composite of the method preparation, Fe modification biological carbon composite is as absorption
Agent is applied in the water-break of farmland to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2.
Fe modification biological carbon composite application is irrigation canals and ditches, the river, lake around wetland periphery farmland and farmland
Pool.
The Fe modification biological carbon composite is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2
Method particularly includes:
Within latter week to two weeks of applying fertilizer, Fe modification biological carbon composite is applied in the farmland of wetland periphery, is applied
Amount is the 5~10% of farmland fertilization quality；
Perhaps according to the rule of seasonal water-break before the summer rainfall phase or before autumn artificial drainage, by the modified life of Fe
Object carbon composite is applied in the irrigation canals and ditches in wetland periphery farmland, and applied amount is the 5~10% of farmland fertilization quality；
Or using fiber-reinforced plastic, foamed plastic or straw as the carrier floating bed of floating, by the modified life of Fe
Object carbon composite is put into floating bed, is then launched in the river and lake around farmland, Fe modification biological carbon composite
Applied amount is the 5~10% of farmland fertilization quality.
The application of the Fe modification biological carbon composite is mainly for seasonal farmland water-break and paddy field drainage.Removal
Object is N, P nutriment in the water-break of farmland.
Charcoal is that biomass material has certain fragrance by one kind that Pintsch process generates under conditions of anaerobism
The solid matter of change degree, huge surface area and special pore structure, so that the absorption property of charcoal is compared to pyrolysis
Before have great promotion, therefore charcoal is widely used the absorption in agricultural production and heavy metal in water as adsorbent
In experiment.But the property of charcoal influenced by its raw material and pyrolytical condition it is very big, without charcoal modified,
Surface group type and property are limited, and expectation target is not achieved in application function, need to improve life by corresponding chemical modification
Certain characteristics of object charcoal.And the certain oxides and metal salt of metal Fe have stronger adsorption capacity to N, P in water body, because
This is supported on biological carbon surface by method appropriate using Fe as the modified material of charcoal, optimizes biology with this
Charcoal physicochemical property improves charcoal to the adsorption capacity of N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 in the water-break of farmland.
Present invention is generally directed to be easy ignored, but to the farmland water-break that Wetland ecological health has an important influence and
A kind of preparation method of the Fe modification biological carbon composite proposed, the present invention pass through around wetland periphery farmland and farmland
A series of precautionary measures are laid in the places such as a large amount of irrigation canals and ditches, river, lake, can efficiently remove excessive N in the water-break of farmland,
P nutriment prevents and is administered from source.
The beneficial effects of the present invention are:
Firstly, the present invention is using biomass materials such as common corn stover, rice straws, cheap, it is convenient to obtain,
Can solve a large amount of straw utilizations it is inappropriate caused by problem of resource waste and stalk on-site incineration bring atmosphere pollution ask
Topic.In addition, the present invention uses common chemicals FeCl3As metal salt, compared to other metal salts, price is low, holds
It easily obtains, and Fe largely exists in nature, it is smaller to the harm of environment.Therefore, the raw material that preparation method of the present invention uses
Be be easy to get, inexpensive material.
Secondly, preparation process of the present invention is simple to operation, can be burnt within an hour from biomass to biological carbon composite
System is completed, and time and money cost is greatly saved in short production cycle, less energy-consuming, is chosen from raw material multiple to charcoal is fired
Condensation material whole process belongs to clean manufacturing, and harm without secondary pollution does not need large scale industry instrument and equipment, and output capacity is high,
Up to 50% or more, it is easy to accomplish commercialization.
Fe modification biological carbon composite prepared by the present invention, adsorption efficiency is high, compares simple biological carbon materials, right
The removal rate of N and P can respectively reach 70% and 90% or more, be more than 20~40 times of simple biological carbon materials.Through detection when examination
The concentration for testing P in water body is 10mg/L, and the removal rate of P can reach 85%, and when the concentration of P in test water body is 20mg/L, P's is gone
Except rate can reach 88%, when the concentration of P in test water body is 50mg/L, the removal rate of P can reach 40%, as P in test water body
Concentration be 100mg/L, the removal rate of P can reach 24%, and therefore, Fe modification biological carbon composite prepared by the present invention can
N, P nutriment in effective removal polluted-water reduces water eutrophication pollution bring harm.Meanwhile the present invention
The Fe modification biological carbon composite of preparation has stronger stability in the environment, compared to other adsorbents, desorption efficiency
It is low, it can adapt to various environmental turbulence situations, stable plays a role.
Therefore, the method for the present invention provides safe and efficient new way for the removal of N, P nutriment in the water-break of farmland.
Fe modification biological carbon composite prepared by the present invention is applied in the water-break of farmland as adsorbent to containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2
Absorption.
Detailed description of the invention
Fig. 1 is the scanning electron microscope (SEM) photograph of Fe modification biological carbon composite prepared by embodiment one.
Fig. 2 is that life Fe modification biological carbon composite prepared by embodiment one removes P in a variety of concentration tests water bodys
Except rate comparison diagram.
Specific embodiment
Technical solution of the present invention is not limited to the specific embodiment of act set forth below, further include each specific embodiment it
Between any combination.
Specific embodiment 1: a kind of preparation method of Fe modification biological carbon composite of present embodiment, it is specific by with
Lower step carries out:
One, biomass material is successively cleaned, shredded, dried, grind and is sieved, obtain powdered biomass；
Two, by FeCl3The powdered biomass that solution and step 1 obtain is put into water bath with thermostatic control oscillation case and is uniformly mixed,
Obtain mixed solution；
Three, the mixed solution for obtaining step 2, is put into constant water bath box, controlled at 80~85 DEG C, carries out anti-
It answers, until mixed solution supernatant liquor disappears, is then transferred in baking oven, it is dry, obtain biological material；
Four, N is passed through into Muffle furnace2, the biological material that step 3 is obtained is transferred in porcelain crucible, and in N2It brushes
Under conditions of, porcelain crucible is put into Muffle furnace, then closed, temperature rises to 550~555 DEG C from room temperature in 10min, pyrolysis
Then 30~32min naturally rings to room temperature, add deionized water, and washing obtains composite material；
Five, the composite material that step 4 obtains successively is dried, milled and is sieved, obtain Fe modification biological charcoal composite wood
Material.
Specific embodiment 2: the present embodiment is different from the first embodiment in that: biomass material in step 1
For one of corn stover, rice straw and wheat stalk or in which several mixing.It is other with one phase of specific embodiment
Together.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that: after being shredded in step 1
The size ﹤ 5cm of biomass material；Drying temperature be 80~120 DEG C, drying time be 12~for 24 hours；The aperture of sieve is when sieving
0.22~0.45mm.It is other the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three: in step 2
FeCl3FeCl in solution3Mass ratio with deionized water is 1: (10~20).Other phases one of with specific embodiment one to three
Together.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four: raw in step 2
Material powder and FeCl3The mass volume ratio of solution is 1g: (8~10) mL.Other phases one of with specific embodiment one to four
Together.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five: permanent in step 2
Case is vibrated in tepidarium, and control revolving speed is 150~180r/min, and duration of oscillation is 10~12h.It is other with specific embodiment one to
One of five is identical.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six: being done in step 3
Dry temperature is 80~120 DEG C, and drying time is 4~8h.It is other identical as one of specific embodiment one to six.
Specific embodiment 8: unlike one of present embodiment and specific embodiment one to seven: being dried in step 5
Dry temperature is 80~120 DEG C, and the aperture of sieve is 0.12~0.22mm when sieving.One of other and specific embodiment one to seven
It is identical.
Specific embodiment 9: the application of the Fe modification biological carbon composite of one method of specific embodiment preparation, Fe
Modification biological carbon composite is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2.
Fe modification biological carbon composite dosage in the water-break of farmland is 1.0g~3.0g/L or Fe modification biological charcoal is multiple
The dosage of condensation material is the 5~10% of farmland fertilization quality.
Specific embodiment 10: present embodiment is unlike specific embodiment nine: the Fe modification biological charcoal is compound
The application method of material are as follows:
Within latter week to two weeks of applying fertilizer, Fe modification biological carbon composite is applied in the farmland of wetland periphery, is applied
Amount is the 5~10% of farmland fertilization quality；
Perhaps according to the rule of seasonal water-break before the summer rainfall phase or before autumn artificial drainage, by the modified life of Fe
Object carbon composite is applied in the irrigation canals and ditches in wetland periphery farmland, and applied amount is the 5~10% of farmland fertilization quality；
Or using fiber-reinforced plastic, foamed plastic or straw as the carrier floating bed of floating, by the modified life of Fe
Object carbon composite is put into floating bed, is then launched in the river and lake around farmland, Fe modification biological carbon composite
Applied amount is the 5~10% of farmland fertilization quality.It is other identical as specific embodiment nine.
Beneficial effects of the present invention are verified using following embodiment:
Embodiment one:
A kind of preparation method of Fe modification biological carbon composite of the present embodiment, specifically sequentially includes the following steps:
One, biomass material is cleaned with deionized water, is shredded, drying, drying temperature is 80 DEG C, drying time 18h；
It grinds, is sieved, obtains powdered biomass；The size ﹤ 5cm of biomass material after chopping；
Two, by 50gFeCl3It is added in 500mL deionized water, prepares FeCl3Then solution is added 50g step 1 and obtains
Powdered biomass, be put into water bath with thermostatic control oscillation case in be uniformly mixed, obtain mixed solution；
Three, the mixed solution for obtaining step 2, is put into constant water bath box, controlled at 80 DEG C, is reacted, directly
It disappears, is then transferred in baking oven to mixed solution supernatant liquor, dry, drying temperature is 80 DEG C, and drying time 8h is given birth to
Material；
Four, N is passed through into Muffle furnace2, the biological material that step 3 is obtained is transferred in porcelain crucible, and in N2It brushes
Under conditions of, porcelain crucible is put into Muffle furnace, it is then closed, it is handled using two-period form fast pyrogenation mode: in 10min
Interior temperature rises to 550 DEG C from room temperature, is pyrolyzed 30min, then naturally rings to room temperature, add deionized water, using centrifugation
Repeated flushing obtains composite material；
Five, the composite material for obtaining step 4, drying, drying temperature are 80 DEG C, mill, are sieved, obtain the Fe
Modification biological carbon composite.
Biomass material is corn stover in step 1.
The aperture of sieve is 0.22mm when being sieved in step 1.
Case is vibrated in water bath with thermostatic control in step 2, and control revolving speed is 180r/min, vibrates 12h.
The aperture of sieve is 0.12mm when being sieved in step 5.
The scanning electron microscope (SEM) photograph of Fe modification biological carbon composite manufactured in the present embodiment by Fig. 1 as shown in Figure 1, can be seen
Out, Fe modification biological carbon composite manufactured in the present embodiment is in cellular, and in one layer of Fe thin oxide layer of area load.
Fe modification biological carbon composite manufactured in the present embodiment tests the removal of N, P nutriment in the water-break of farmland:
The solution of a variety of N, P concentration is prepared as farmland water-break, centrifugal filtration retains supernatant liquor, measures in water body
N, Fe modification biological carbon composite prepared by embodiment one is added to preparation by the basic physical and chemical index such as the content of P element, pH
Farmland water-break in, the additive amount of Fe modification biological carbon composite is 1.5g/L；The mixed solution of acquisition, which is put into revolving speed, is
In 180 rpms of water bath with thermostatic control oscillation case, keeping temperature is 23 DEG C, reaction time 12h, completes the composite material to agriculture
The removal of N, P nutriment in the water-break of field, water body after being handled.
Water body after processing is passed through to 0.45 μm of filter membrane, filtering measures the content of N, P in solution using Flow Analyzer,
Obtain Fe modification biological carbon composite to the adsorbance of N, P in the water-break of farmland.The life Fe that Fig. 2 show the preparation of embodiment one changes
Property biology carbon composite for P in a variety of concentration tests water bodys removal rate, as shown in Figure 2, as P in the test water body of preparation
Concentration be 10mg/L, the removal rate of P is 85%, and when the concentration of P in the test water body of preparation is 20mg/L, the removal rate of P is
88%, when the concentration of P in the test water body of preparation is 50mg/L, the removal rate of P is 40%, as P in the test water body of preparation
Concentration is 100mg/L, and the removal rate of P is 24%, and therefore, Fe modification biological carbon composite has the P of water body middle and high concentration
Great removal effect removes N, P nutriment method in the farmland water-break of wetland periphery for a kind of Fe modification biological Carbon Materials
Implementation provides strong scientific basis.
The application method one of Fe modification biological carbon composite prepared by embodiment one are as follows:
Within latter week to two weeks of applying fertilizer, Fe modification biological carbon composite is applied in the farmland of wetland periphery, is applied
Amount is the 10% of farmland fertilization quality.
This method in a period of time, applies Fe modification biological carbon composite, so that crops and life after applying fertilizer
Object charcoal generates absorption competition for N, P nutrient, while promoting crops absorption nutriment to increase utilization rate of fertilizer,
Also it avoids excessive N, P from entering in surface drainage with farmland water-break, into wetland, wet land water quality is caused to deteriorate.
The application method two of Fe modification biological carbon composite prepared by embodiment one are as follows:
According to the rule of seasonal water-break, before the summer rainfall phase or before autumn artificial drainage, by Fe modification biological charcoal
Composite material is applied in the irrigation canals and ditches in wetland periphery farmland, and applied amount is the 10% of farmland fertilization quality.
This method Fe modification biological carbon composite can act directly on the collection region of farmland water-break, can efficiently remove
Remaining N, P element after crops absorb avoid a large amount of N, P from entering in biggish river or lake with farmland water-break,
Cause the eutrophication pollution of water body.
The application method three of Fe modification biological carbon composite prepared by embodiment one are as follows:
Using fiber-reinforced plastic, foamed plastic or straw as the carrier floating bed of floating, by Fe modification biological charcoal
Composite material is put into floating bed, is then launched in the river and lake around farmland, and Fe modification biological carbon composite applies
Amount is the 10% of farmland fertilization quality.
Because of the area and technical requirements of floating bed, so that biological carbon composite applies place major limitation in farmland week
It encloses and wetland median year has in the larger river or lake of water.Compared to plant cultivating water purification technology, biological carbon materials are floating
Bed technique, not by the constraint in season, the requirement to environmental factor is low, at low cost convenient for recycling, efficiently removes N, P battalion in water body
Substance is supported, the content of nutriment in the farmland water-break for flowing into wetland is reduced.
Claims (10)
1. a kind of preparation method of Fe modification biological carbon composite, it is characterised in that this method specifically sequentially includes the following steps:
One, biomass material is successively cleaned, shredded, dried, grind and is sieved, obtain powdered biomass；
Two, by FeCl3The powdered biomass that solution and step 1 obtain is put into water bath with thermostatic control oscillation case and is uniformly mixed, mixed
Close solution；
Three, the mixed solution for obtaining step 2, is put into constant water bath box, controlled at 80~85 DEG C, is reacted, directly
It disappears, is then transferred in baking oven to mixed solution supernatant liquor, it is dry, obtain biological material；
Four, N is passed through into Muffle furnace2, the biological material that step 3 is obtained is transferred in porcelain crucible, and in N2The item brushed
Under part, porcelain crucible is put into Muffle furnace, then closed, temperature rises to 550~555 DEG C from room temperature in 10min, pyrolysis 30~
Then 32min naturally rings to room temperature, add deionized water, and washing obtains composite material；
Five, the composite material that step 4 obtains successively is dried, milled and is sieved, obtain Fe modification biological carbon composite.
2. a kind of preparation method of Fe modification biological carbon composite according to claim 1, it is characterised in that step 1
Middle biomass material is one of corn stover, rice straw and wheat stalk or in which several mixing.
3. a kind of preparation method of Fe modification biological carbon composite according to claim 1 or 2, it is characterised in that step
The size ﹤ 5cm of biomass material after being shredded in one；Drying temperature be 80~120 DEG C, drying time be 12~for 24 hours；It is sieved when sieving
The aperture of son is 0.22~0.45mm.
4. a kind of preparation method of Fe modification biological carbon composite according to claim 3, it is characterised in that step 2
Middle FeCl3FeCl in solution3Mass ratio with deionized water is 1: (10~20).
5. a kind of preparation method of Fe modification biological carbon composite according to claim 4, it is characterised in that step 2
Middle powdered biomass and FeCl3The mass volume ratio of solution is 1g: (8~10) mL.
6. a kind of preparation method of Fe modification biological carbon composite according to claim 1,2 or 4, it is characterised in that step
Case is vibrated in water bath with thermostatic control in rapid two, and control revolving speed is 150~180r/min, and duration of oscillation is 10~12h.
7. a kind of preparation method of Fe modification biological carbon composite according to claim 6, it is characterised in that step 3
Middle drying temperature is 80~120 DEG C, and drying time is 4~8h.
8. a kind of preparation method of Fe modification biological carbon composite according to claim 7, it is characterised in that step 5
Middle drying temperature is 80~120 DEG C, and the aperture of sieve is 0.12~0.22mm when sieving.
9. the application of the Fe modification biological carbon composite of method preparation as described in claim 1, it is characterised in that the modified life of Fe
Object carbon composite is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2.
10. the application of Fe modification biological carbon composite according to claim 9, it is characterised in that the Fe modification biological
Carbon composite is applied in the water-break of farmland as adsorbent to the absorption containing N, Arg-Pro-Lys-Pro-Gln-Gln-Phe-Phe-Gly-Leu-Met-NH2 method particularly includes:
Within latter week to two weeks of applying fertilizer, Fe modification biological carbon composite is applied in the farmland of wetland periphery, applied amount is
The 5~10% of farmland fertilization quality；
Perhaps according to the rule of seasonal water-break before the summer rainfall phase or before autumn artificial drainage, by Fe modification biological charcoal
Composite material is applied in the irrigation canals and ditches in wetland periphery farmland, and applied amount is the 5~10% of farmland fertilization quality；
Or using fiber-reinforced plastic, foamed plastic or straw as the carrier floating bed of floating, by Fe modification biological charcoal
Composite material is put into floating bed, is then launched in the river and lake around farmland, and Fe modification biological carbon composite applies
Amount is the 5~10% of farmland fertilization quality.
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Application publication date: 20190809 |