CN107953569A - A kind of thermoplastic resin fixes the bio-carrier preparation method of biomass carbon - Google Patents
A kind of thermoplastic resin fixes the bio-carrier preparation method of biomass carbon Download PDFInfo
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- CN107953569A CN107953569A CN201711144681.9A CN201711144681A CN107953569A CN 107953569 A CN107953569 A CN 107953569A CN 201711144681 A CN201711144681 A CN 201711144681A CN 107953569 A CN107953569 A CN 107953569A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/04—Conditioning or physical treatment of the material to be shaped by cooling
- B29B13/045—Conditioning or physical treatment of the material to be shaped by cooling of powders or pellets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/58—Component parts, details or accessories; Auxiliary operations
- B29B7/72—Measuring, controlling or regulating
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/82—Heating or cooling
- B29B7/826—Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/12—Making granules characterised by structure or composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7466—Combinations of similar mixers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Abstract
The invention discloses the bio-carrier preparation method that a kind of thermoplastic resin fixes biomass carbon, belong to biological treatment and the functional material technical field of pollutant.The present invention is using thermoplastic resin extrusion grade polyethylene particle or extrusion grade PP GRANULES as basic raw material; with one kind in vegetation charcoal, straw charcoal, rice hull carbon, fruit shell carbon, sewage sludge biomass charcoal and animal wastes biomass carbon or function material is combined as, being prepared for thermoplastic resin by Screw Extrusion technique fixes biomass carbon carrier.Preparation method proposed by the invention, technique is simple, and method is flexibly controllable, adaptable, is produced on a large scale, and has efficiently to the removal efficiency of persistent organic pollutants.
Description
Technical field
The present invention relates to the bio-carrier preparation method that a kind of thermoplastic resin fixes biomass carbon, applied to environmental pollution
The biological treatment of thing, is particularly suitable in the biological treatment of sewage, belongs to biological treatment and the functional material technology of pollutant
Field.
Background technology
Sanitary sewage and industrial wastewater are the primary pollution source of China's water body.Compared to sanitary sewage, the row of industrial wastewater
High-volume and Pollutants in Wastewater species it is increasing, component is more complicated, wherein containing a variety of persistent organic pollutants.It is difficult
Degradable organic pollutant refers to be degraded by microorganisms, or is grown very much the time required to degraded, they are easily in water body, soil
Accumulated in the natural mediums such as earth, and then those organic compounds to damage to environment.These organic wastewater with difficult degradation thereby are related to
Industry it is very wide, mainly have chemical industry, light industry, printing and dyeing, pharmacy, pesticide and coal chemical industrial waste water etc..Mainly contained in these waste water
Difficult degradation organic principle for example phenols, halogenated compound, monocyclic aromatic compounds, polycyclic aromatic hydrocarbons (PAH), Polychlorinated biphenyls, insecticide,
Herbicide and dyestuff etc., their harm to environment have been subject to the most attention of countries in the world.Control persistent organic pollutants,
It is the important topic faced in water prevention and cure of pollution field.Nearest correlative study shows that the addition of artificial oxidation's reduction mediator can accelerate
The extracellular electron transport rate of microorganism, and then help to strengthen the biodegradability of persistent organic pollutants, shorten drop
Solve the time.Therefore, redox mediators have potential application value and are increasingly subject to extensive concern both domestic and external.
So-called redox mediators are to transmit electronics by the redox ability of itself, are primarily involved in microorganism
Extracellular electron transfer process, to accelerate electron transport rate, the degradation rate of pollutant is significantly improved.At present, usually use
To redox mediators be mainly some quinones, azophenlyene, phthalocyanine etc..This kind of material all has π-pi-conjugated system, and has
The avtive spot of betatopic ability, such as carbonyl (C=O).But these materials all have solubility, and it is water-treated in biology
It is thus high there are processing cost, it is necessary to regularly add in journey, secondary pollution problems are caused to environment.Carbonaceous material example
Such as：Graphene, carbon nanotubes, charcoal etc., are that a kind of higher redox of the more recycling rate of waterused of Recent study is situated between
Body.Wherein, charcoal (Biochar), which is called, does black carbon (Black carbon), is the biomass warp under hypoxemia or oxygen free condition
A kind of indissoluble, stablizing, height aromatization, the consolidating rich in carbon that high temperature (usual 700 DEG C of ＜) pyrolysis (charing) produces
Body residue.It is low to prepare the cost of material of charcoal, derives from a wealth of sources, mainly there is timber, shell, stalk, sludge, animal wastes etc..
Correlative study the result shows that, biological carbon surface is rich in oxygen-containing functional group (such as carbonyl, hydroxyl etc.), in the biological prosthetic of pollutant
During, charcoal can receive the electronics of biodegradable generation, and after receiving electronics, the charcoal being reduced again can be by electronics
Electron acceptor is transferred to, in whole degradation process, charcoal improves treatment effeciency as redox mediators.But directly
As redox mediators, and there can be the problem of being lost in, thus equally cost can be added there are increase and environment is made
Into secondary pollution problems.Based on this, the purpose of the present invention is biological carbon materials are fixed on thermoplastic resin, one kind is developed
Novel thermoplastic resin fixes the bio-carrier of biomass carbon.
The content of the invention
The present invention is directed in biological water technology, due to being limited be subject to electron transport rate, to difficult degradation in water body
The problem of processing speed of organic matter is slow, the present invention is intended to provide a kind of thermoplastic resin fixes the bio-carrier system of biomass carbon
Preparation Method.
Technical scheme：
A kind of thermoplastic resin fixes the bio-carrier preparation method of biomass carbon, and step is as follows：
(1) biomass carbon function material is clayed into power, drying to constant weight under the conditions of≤80 DEG C, spare；
(2) by the biomass carbon function material powder in step (1) by pretreatment and thermoplastic resin particle mechanical blending
And stir evenly, it is spare；The mass ratio of biomass carbon function material powder and thermoplastic resin particle is 20%-50%；
(3) melt blending extrusion is carried out to the solid mixture in step (2) using screw extruder, into bar, and passed through
Machine cuts obtain graininess blend；The processing temperature of screw extruder is 130 DEG C~190 DEG C, ensures that thermoplastic resin exists
It is sufficiently mixed under molten condition with biomass carbon function material powder；
(4) by the graininess blend prepared in step (3) and thermoplastic resin particle mechanical agitation it is uniform after, be added to
Blending extrusion in screw extruder, and carrier tubing of different shapes is obtained according to the design of die head；In graininess blend
The quality of biomass carbon is no more than 20% with thermoplastic resin particle total mass ratio；
(5) by the mode of the support tube timber-used machine cuts prepared in step (4), and cut according to required size
To bio-carrier.
The biomass carbon function material is vegetation charcoal, straw charcoal, rice hull carbon, fruit shell carbon, sewage sludge biomass charcoal, animal excreta
Just combination more than one or both of biomass carbon.
The thermoplastic resin particle is extrusion grade polyethylene particle or extrusion grade PP GRANULES.
Four sections of heating of the screw extruder point, the temperature range of each section of heating are as follows with acting on：(1) temperature 120-
140 DEG C, it disclosure satisfy that thermoplastic resin reaches semi-molten state, be conducive to the continuity of Solid Conveying and Melting；(2) temperature 130-160
DEG C, play the role of accelerating thermoplastic resin to convert from semi-molten state to molten condition, be conducive to blend in the bringing-up section
In uniformly mix；(3) 140-170 DEG C of temperature, blend are in solid-liquid admixture, so that the thermoplastic resin of molten condition is with consolidating
State biomass carbon function material is sufficiently mixed, and is conducive in biomass carbon function material, thermoplastic resin in the molten state uniformly
Distribution；(4) temperature is 115-145 DEG C so that the quantitative of blend, level pressure outflow, ensure stability and the continuity of extrusion with
And follow-up smooth sizing.
Beneficial effects of the present invention：Thermoplastic resin provided by the invention fixes the bio-carrier preparation side of biomass carbon
Method, technique is simple, and method is flexibly controllable, adaptable, is produced on a large scale, which has and efficiently have to difficult degradation
The removal efficiency of organic pollutants.
Embodiment
Describe the embodiment of the present invention in detail below in conjunction with technical solution.
Embodiment 1
Thermoplastic resin fixes the preparation of biomass carbon bio-carrier：(1) straw charcoal function material is clayed into power, 60 DEG C of bars
Drying to constant weight under part, spare；(2) by the straw charcoal function material powder and high density polyethylene (HDPE) in step (1) by pre-processing
Particle mechanical blending simultaneously stirs evenly, spare；(3) solid mixture in step (2) is melted using screw extruder
Blending extrusion, into bar, and by machine cuts obtain graininess blend.The processing temperature of screw extruder is 175 DEG C.Stalk
The mass percent of charcoal functional material and high density polyethylene (HDPE) particle is 30%；(4) graininess prepared in step (3) is blended
After thing and thermoplastic resin mechanical agitation are uniform, it is added to blending extrusion in screw extruder.Straw charcoal in graininess blend
The percentage of quality and high density polyethylene (HDPE) gross mass be 4%；(5) material of melting mixing extrusion passes through into bar, cools down, leads
Draw, pelletizing, and carrier of different shapes is obtained according to the design of die head.
By the bio-carrier applied to (dissolved oxygen is controlled in 2.0-3.0mg/ in the aerobic biodegradation experiment of phenolic waste water
L), its influence to microorganism biological degradation property in water body has been investigated.In experiment, carrier dosage is reactor dischargeable capacity
30%, hydraulic detention time for 8 it is small when.Test result indicates that：(1) in the presence of no microorganism, carrier has been carried out to water body
The adsorption experiment of middle phenol, the results showed that：The removal rate for the suction-operated that phenol passes through carrier is less than 3%.(2) by microorganism
Under the conditions of existing, compared to the high density polyethylene (HDPE) carrier of no fixed charcoal, stalk is fixed using high density polyethylene (HDPE)
The reactor of charcoal bio-carrier, nearly 10% is improved by the removal rate of biodegradation Pyrogentisinic Acid.
Embodiment 2
Thermoplastic resin fixes the preparation of biomass carbon bio-carrier：(1) rice hull carbon function material is clayed into power, 60 DEG C of bars
Drying to constant weight under part, spare；(2) by the rice hull carbon function material powder and high density polyethylene (HDPE) in step (1) by pre-processing
Particle mechanical blending simultaneously stirs evenly, spare；(3) solid mixture in step (2) is melted using screw extruder
Blending extrusion, into bar, and by machine cuts obtain graininess blend.The processing temperature of screw extruder is 185 DEG C.Rice husk
The mass percent of charcoal functional material and high density polyethylene (HDPE) particle is 50%；(4) graininess prepared in step (3) is blended
After thing is stirred evenly with high density polyethylene (HDPE) particle machinery, it is added to blending extrusion in screw extruder.In graininess blend
The quality of rice hull carbon is 8% with the percentage of high density polyethylene (HDPE) gross mass；(5) melting mixing extrusion material pass through into bar,
Cooling, traction, pelletizing, and carrier of different shapes is obtained according to the design of die head.
It is as follows as the bio-carrier preparation method of function material that modified graphite olefinic oxide is carbonylated：(1) carbonylation is modified
The preparation of graphene oxide functional material：Graphene oxide dispersion, with ammonium hydroxide tune its pH for 10,90 DEG C of hydro-thermals 6 it is small when；It is cold
But；60 DEG C of drying, obtained solid are denoted as N-GO；0.2gN-GO is added in 20mL water, ultrasound makes its fully dispersed, in ice-water bath
Under the conditions of, 5ml H2SO4, and 1.2g potassium bichromates are added, is sufficiently stirred, when reaction 3 is small, 60 DEG C of drying.Gained carbonylation changes
Property graphene oxide (Q-GO).(2) preparation of bio-carrier：By carbonylation modified graphene oxide function material, ultrasound makes in water
Its is fully dispersed, and polyethylene particle basic material is added in dispersion liquid, insoluble redox mediators functional material and basis
The mass ratio of raw material is 1:100；2h is soaked, stirring once, enables the function material in water fully to gather with high density per half an hour
Ethene particle contacts；80 DEG C of drying, it is stand-by.Using screw extruder to material carry out melting extrusion, and through supercooling, traction,
Pelletizing obtains column like catalyst carrier.
Thermoplastic resin is fixed into the bio-carrier of charcoal respectively, carbonylation modified graphite olefinic oxide is function material
Bio-carrier and unmodified support are applied in the aerobic and anaerobic biodegradation experiment of phenolic waste water, are born in different water inlets
Under the conditions of lotus, influence of the reactor of addition different carriers to the biodegradability of microorganism in water body has been inquired into contrast.It is real
In testing, carrier dosage is the 30% of reactor dischargeable capacity.Experimental result is as shown in table 1.As can be seen from the table it is aerobic,
Anaerobic and it is different water inlet phenol concentrations under the conditions of, the biodegradability for being loaded with the reactor Pyrogentisinic Acid of modified support is good
In the reactor of unmodified support.And between the reactor of modified support, the biology drop of the reactor of charcoal modified support
Solution performance is slightly better than the reactor for being loaded with carbonylation graphene oxide modified support.In addition, compared to carbonylation modified graphite
Olefinic oxide for function material bio-carrier preparation method, the bio-carrier preparation method of thermoplastic resin immobilization biological charcoal
It is simpler, it is easy to operate, it is time saving, it is more conducive to the continuity for ensureing production process.Compared to carbonylation modified graphene
Oxide is function material, and biomass carbon function material source is more extensive, is inexpensively more advantageous to accomplishing scale production and applies.
The influence of 1 modified support Pyrogentisinic Acid's biodegradability of table
Note：PE represents to add the reactor of unmodified bio-carrier；
Q-GO represents the reactor of addition carbonylation graphene oxide modified support；
Biochar represents the reactor of addition biomass carbon modified support.
Claims (8)
1. a kind of thermoplastic resin fixes the bio-carrier preparation method of biomass carbon, it is characterised in that step is as follows：
(1) biomass carbon function material is clayed into power, drying to constant weight under the conditions of≤80 DEG C, spare；
(2) by the biomass carbon function material powder in step (1) by pretreatment and thermoplastic resin particle mechanical blending and stir
Mix uniformly, it is spare；The mass ratio of biomass carbon function material powder and thermoplastic resin particle is 20%-50%；
(3) melt blending extrusion is carried out to the solid mixture in step (2) using screw extruder, into bar, and by machinery
Cutting obtains graininess blend；The processing temperature of screw extruder is 130 DEG C~190 DEG C, ensures that thermoplastic resin is melting
It is sufficiently mixed under state with biomass carbon function material powder；
(4) by the graininess blend prepared in step (3) and thermoplastic resin particle mechanical agitation it is uniform after, be added to screw rod
Blending extrusion in extruder, and carrier tubing of different shapes is obtained according to the design of die head；It is biological in graininess blend
The quality of matter charcoal is no more than 20% with thermoplastic resin particle total mass ratio；
(5) by the mode of the support tube timber-used machine cuts prepared in step (4), and cut and given birth to according to required size
Thing carrier.
2. bio-carrier preparation method according to claim 1, it is characterised in that the biomass carbon function material is grass
One or both of charcoal, straw charcoal, rice hull carbon, fruit shell carbon, sewage sludge biomass charcoal, animal wastes biomass carbon above group
Close.
3. bio-carrier preparation method according to claim 1 or 2, it is characterised in that the thermoplastic resin particle
For extrusion grade polyethylene particle or extrusion grade PP GRANULES.
4. bio-carrier preparation method according to claim 1 or 2, it is characterised in that the screw extruder point four
Duan Jiare, the temperature range of each section of heating are as follows with acting on：
(1) 120-140 DEG C of temperature, meets that thermoplastic resin reaches semi-molten state, is conducive to the continuity of Solid Conveying and Melting；
(2) 130-160 DEG C of temperature, plays the role of accelerating thermoplastic resin to convert from semi-molten state to molten condition, favorably
Uniformly mixed in the bringing-up section in blend；
(3) 140-170 DEG C of temperature, blend are in solid-liquid admixture, so that the thermoplastic resin of molten condition and solid-state biology
Matter charcoal function material is sufficiently mixed, and is conducive to be uniformly distributed in biomass carbon function material, thermoplastic resin in the molten state；
(4) temperature is 115-145 DEG C so that the quantitative of blend, level pressure outflow, ensure extrusion stability and continuity and
Follow-up smooth sizing.
5. bio-carrier preparation method according to claim 3, it is characterised in that four sections of the screw extruder point adds
Heat, the temperature range of each section of heating are as follows with acting on：
(1) 120-140 DEG C of temperature, meets that thermoplastic resin reaches semi-molten state, is conducive to the continuity of Solid Conveying and Melting；
(2) 130-160 DEG C of temperature, plays the role of accelerating thermoplastic resin to convert from semi-molten state to molten condition, favorably
Uniformly mixed in the bringing-up section in blend；
(3) 140-170 DEG C of temperature, blend are in solid-liquid admixture, so that the thermoplastic resin of molten condition and solid-state biology
Matter charcoal function material is sufficiently mixed, and is conducive to be uniformly distributed in biomass carbon function material, thermoplastic resin in the molten state；
(4) temperature is 115-145 DEG C so that the quantitative of blend, level pressure outflow, ensure extrusion stability and continuity and
Follow-up smooth sizing.
6. according to the bio-carrier preparation method described in claim 1,2 or 5, it is characterised in that the biomass carbon function
Material surface is rich in oxygen-containing functional group, has the function that redox mediators.
7. bio-carrier preparation method according to claim 3, it is characterised in that the biomass carbon function material surface
Rich in oxygen-containing functional group, there are redox mediators.
8. bio-carrier preparation method according to claim 4, it is characterised in that the biomass carbon function material surface
Rich in oxygen-containing functional group, there are redox mediators.
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| CN201711144681.9A CN107953569B (en) | 2017-11-17 | 2017-11-17 | Preparation method of biological carrier for thermoplastic resin immobilized biomass charcoal |
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| CN201711144681.9A CN107953569B (en) | 2017-11-17 | 2017-11-17 | Preparation method of biological carrier for thermoplastic resin immobilized biomass charcoal |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095614A (en) * | 2018-06-28 | 2018-12-28 | 浙江大学 | The biological floating bed and its matrix and preparation method prepared by biomass carbon source |
| WO2019095306A1 (en) * | 2017-11-17 | 2019-05-23 | 大连理工大学 | Method for preparing biocarrier for fixing biomass charcoal by using thermoplastic resin |
| CN114536584A (en) * | 2022-01-28 | 2022-05-27 | 青岛思普润水处理股份有限公司 | Moving bed biofilm suspension carrier for sewage treatment and preparation method thereof |
| CN114772721A (en) * | 2022-04-11 | 2022-07-22 | 中国农业大学 | Method for promoting anaerobic degradation of polycyclic aromatic hydrocarbon in wastewater by using biochar |
| CN117363046A (en) * | 2023-10-31 | 2024-01-09 | 恩平市健琪新材料科技有限公司 | PP material and preparation method thereof |
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