CN107840442A - Polylactic acid composite biological membrane carrier materials and preparation method thereof - Google Patents
Polylactic acid composite biological membrane carrier materials and preparation method thereof Download PDFInfo
- Publication number
- CN107840442A CN107840442A CN201610834429.XA CN201610834429A CN107840442A CN 107840442 A CN107840442 A CN 107840442A CN 201610834429 A CN201610834429 A CN 201610834429A CN 107840442 A CN107840442 A CN 107840442A
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- CN
- China
- Prior art keywords
- polylactic acid
- biological membrane
- membrane carrier
- acid composite
- composite biological
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
Abstract
The invention provides a kind of polylactic acid composite biological membrane carrier materials, it is made from the following raw materials in parts by weight：Diatomite 8~10, PLA 14~18, graphene oxide 0.3~0.4, tapioca 4~6, Arabic gum 2~3, polypropylene 40~50, chitosan 8~12, lignocellulosic 3~5, trimethyl cetyl ammonium bromide 1~2, Ludox 0.5~1.5, sodium humate 0.3~0.5, water 15~20.The present invention also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials.Above-mentioned polylactic acid composite biological membrane carrier materials provided by the invention have in light weight, surface active area is big, rich in carbon source, variation of ambient temperature influences small on absorption property, have the advantages that good fluidity, non-easy to knot groups, absorption property be good, corrosion-resistant, persistent high efficiency with filler of its making, further improve effects of purification quality.
Description
Technical field
The invention belongs to technical field of waste water processing, and in particular to a kind of polylactic acid composite biological membrane carrier materials and preparation
Method.
Background technology
Biomembrane wastewater processing technology is that microorganism is fixed on into formation biomembrane on carrier to obtain the pollutant in waste water
To the technology of degraded, therefore, the performance of biofilm carrier will directly influence sewage treating efficiency, want to obtain at efficient water
Effect is managed, selects suitable efficient carrier material to be particularly important.
At present, inorganic carrier and organic carrier are broadly divided into technical field of waste water processing, the carrier of fixation of microbe.Often
The inorganic carrier seen has quartz sand, haydite, coke, biological activated carbon, expansion alumino-silicate etc.；Organic carrier have polystyrene,
Polyvinyl chloride, polypropylene etc..Inorganic carrier is because surface area is little, and intensity difference and outer smooth, microorganism fixed amount is few, is formed
Biomembrane easily come off, immobilization effect is poor, and biological impact resistance ability is poor, is not suitable for organic wastewater with difficult degradation thereby
Processing procedure；And organic carrier, mainly based on plastics, although light, the compatibility between carrier and microorganism is poor, and
It is expensive.But these materials are in biocompatibility, stability, persistence, reproducibility, mobility and biomembrane tack
Etc. exist some defects, govern the further lifting of clean-up effect.
The content of the invention
In view of this, it is of the invention it is necessory to provide a kind of polylactic acid composite biological membrane carrier materials and preparation method, with
Solve the above problems.
A kind of polylactic acid composite biological membrane carrier materials, it is made from the following raw materials in parts by weight：Diatomite 8~10, gather
Lactic acid 14~18, graphene oxide 0.3~0.4, tapioca 4~6, Arabic gum 2~3, polypropylene 40~50, chitosan 8
~12, lignocellulosic 3~5, trimethyl cetyl ammonium bromide 1~2, Ludox 0.5~1.5, sodium humate 0.3~0.5,
Water 15~20.
The present invention also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials, comprises the steps of：
First above-mentioned raw materials are well mixed, are then fed into batch mixing in double screw extruder, extrudes and is made under the conditions of 180 DEG C~220 DEG C
Compound slice, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into and is made after the solidification of gained filament
A diameter of 1~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials are made.
Compared with prior art, traditional simple inorganic, organic carrier medium are used in mixed way by the present invention, will both advantages
With reference to greatly having widened the use range of material, filament and the micro- life prepared with polypropylene, PLA Polymer material
The compatibility of thing is more preferable, corrosion-resistant aging；The diatomite blended in above-mentioned carrier material possesses the adsorption capacity of uniform high-efficiency；Add
The graphene oxide entered not only improves the mechanical property of material, and improves absorption degradation effect；The chitosan of addition contains
Active group can crosslink reaction, improved intensity and stability with other materials；The lignocellulosic of addition causes fibre
Dimension silk has certain water absorbing capacity, is expanded in water, enlarged surface product；The tapioca and Ludox of addition cause above-mentioned carrier
Contain carbon source in material, microorganism colonization can be accelerated to grow；The trimethyl cetyl ammonium bromide lifting carrier material of addition
Weatherability, the performance such as corrosion resistance.Therefore, the polylactic acid composite biological membrane carrier materials that the present invention is prepared are in light weight,
Surface active area is big, and rich in carbon source, variation of ambient temperature is small on absorption property influence, has mobility with filler of its making
Good, the advantages that easy to knot groups, absorption property be not good, corrosion-resistant, persistent high efficiency, further improve effects of purification quality.
Embodiment
Below by embodiment, technical scheme is described in further detail.
Embodiment 1
The embodiment of the present invention provides a kind of polylactic acid composite biological membrane carrier materials, and it is made from the following raw materials in parts by weight：Silicon
Diatomaceous earth 8, PLA 14, graphene oxide 0.3, tapioca 4, Arabic gum 2, polypropylene 40, chitosan 8, lignocellulosic
3rd, trimethyl cetyl ammonium bromide 1, Ludox 0.5, sodium humate 0.3, water 15.
The present embodiment also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials, includes following step
Suddenly：First above-mentioned raw materials are well mixed, are then fed into batch mixing in double screw extruder, extrusion is made compound under the conditions of 180 DEG C
Section, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into after the solidification of gained filament and diameter is made
For 1~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials are made, the PLA is compound by above-mentioned material
The specific surface area of biofilm carrier material is about 6323m2/m3。
Embodiment 2
The embodiment of the present invention provides a kind of polylactic acid composite biological membrane carrier materials, and it is made from the following raw materials in parts by weight：Silicon
Diatomaceous earth 9, PLA 15, graphene oxide 0.35, tapioca 5, Arabic gum 2.5, polypropylene 44, chitosan 10, wooden fibre
Dimension element 4, trimethyl cetyl ammonium bromide 1.5, Ludox 0.8, sodium humate 0.4, water 17.
The present embodiment also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials, includes following step
Suddenly：First above-mentioned raw materials are well mixed, are then fed into batch mixing in double screw extruder, extrusion is made compound under the conditions of 200 DEG C
Section, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into after the solidification of gained filament and diameter is made
For 1~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials, the polylactic acid composite biological membrane carrier is made
The specific surface area of material is about 6381m2/m3。
Embodiment 3
A kind of polylactic acid composite biological membrane carrier materials of the present embodiment, it is made from the following raw materials in parts by weight：Diatomite 9, gather
Lactic acid 17, graphene oxide 0.35, tapioca 5, Arabic gum 2.5, polypropylene 48, chitosan 11, lignocellulosic 4, three
Methyl cetyl ammonium bromide 2, Ludox 1.2, sodium humate 0.5, water 20.
The present invention also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials, comprises the steps of：
First above-mentioned raw materials are well mixed, are then fed into batch mixing in double screw extruder, compound cut is made in extrusion under the conditions of 210 DEG C
Piece, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into after the solidification of gained filament and is made a diameter of 1
~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials, the polylactic acid composite biological membrane carrier materials are made
Specific surface area be about 6402m2/m3。
Embodiment 4
A kind of polylactic acid composite biological membrane carrier materials, it is made from the following raw materials in parts by weight：Diatomite 10, PLA 18,
Graphene oxide 0.4, tapioca 6, Arabic gum 3, polypropylene 50, chitosan 12, lignocellulosic 5, trimethyl hexadecane
Base ammonium bromide 2, Ludox 1.5, sodium humate 0.5, water 20.
The present invention also provides a kind of preparation method of above-mentioned polylactic acid composite biological membrane carrier materials, comprises the steps of：
First above-mentioned raw materials are well mixed, are then fed into batch mixing in double screw extruder, compound cut is made in extrusion under the conditions of 220 DEG C
Piece, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into after the solidification of gained filament and is made a diameter of 1
~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials, the polylactic acid composite biological membrane carrier materials are made
Specific surface area be about 6317m2/m3。
Performance test
The polylactic acid composite biological membrane carrier materials provided in above-described embodiment 1~4 are placed in Zhengzhou as biofilm carrier
Water process is carried out in sewage treatment plant, wherein, the kg/m of COD volumetric loadings 33D, the kg/m of ammonia nitrogen volumetric loading 0.33D, always
The kg/m of nitrogen volumetric loading 0.83D, temperature are 20 DEG C, and dissolved oxygen control is in 2~4mg/l, set time to biomembrane, 10
Its inner film thickness, perphyton dry film amount, COD, ammonia nitrogen removal frank and nitrogen removal rate are tested, test result such as following table institute
Show：
| Group | The biomembrane set time/h | 10 days inner film thickness/mm | Perphyton dry film amount/g/g | COD | Ammonia nitrogen removal frank | Nitrogen removal rate |
| Embodiment 1 | 17 | 6.1 | 3.59 | 87.5% | 92.5% | 79.1% |
| Embodiment 2 | 13 | 6.7 | 3.68 | 90.4% | 95.9% | 81.9% |
| Embodiment 3 | 11 | 7.1 | 3.72 | 91.1% | 96.4% | 83.4% |
| Embodiment 4 | 18 | 6.6 | 3.51 | 89.3% | 93.7% | 80.7% |
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；Although ginseng
The present invention is described in detail according to preferred embodiment, those of ordinary skills in the art should understand that：Still can be with
The embodiment of the present invention is modified or equivalent substitution is carried out to some technical characteristics；Without departing from skill of the present invention
The spirit of art scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (2)
1. a kind of polylactic acid composite biological membrane carrier materials, it is made from the following raw materials in parts by weight：Diatomite 8~10, poly- breast
Acid 14~18, graphene oxide 0.3~0.4, tapioca 4~6, Arabic gum 2~3, polypropylene 40~50, chitosan 8~
12nd, lignocellulosic 3~5, trimethyl cetyl ammonium bromide 1~2, Ludox 0.5~1.5, sodium humate 0.3~0.5, water
15~20.
2. a kind of preparation method of the polylactic acid composite biological membrane carrier materials described in claim 1, is comprised the steps of：First will
Above-mentioned raw materials are well mixed, and are then fed into batch mixing in double screw extruder, and extrusion is made compound under the conditions of 180 DEG C~220 DEG C
Section, melt-spraying spinning in melt-blown non-woven equipment is put into after slice cooling, is compiled into after the solidification of gained filament and diameter is made
For 1~2mm bundle of composite fibers, the polylactic acid composite biological membrane carrier materials are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834429.XA CN107840442A (en) | 2016-09-20 | 2016-09-20 | Polylactic acid composite biological membrane carrier materials and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610834429.XA CN107840442A (en) | 2016-09-20 | 2016-09-20 | Polylactic acid composite biological membrane carrier materials and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107840442A true CN107840442A (en) | 2018-03-27 |
Family
ID=61657287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610834429.XA Withdrawn CN107840442A (en) | 2016-09-20 | 2016-09-20 | Polylactic acid composite biological membrane carrier materials and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107840442A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158193A (en) * | 2018-04-12 | 2019-08-23 | 济南开发区星火科学技术研究院 | The preparation method of high molecular material based on modified graphene |
| CN114590886A (en) * | 2022-02-21 | 2022-06-07 | 中国科学院合肥物质科学研究院 | Self-degradable biological film filler and preparation method and application thereof |
-
2016
- 2016-09-20 CN CN201610834429.XA patent/CN107840442A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158193A (en) * | 2018-04-12 | 2019-08-23 | 济南开发区星火科学技术研究院 | The preparation method of high molecular material based on modified graphene |
| CN114590886A (en) * | 2022-02-21 | 2022-06-07 | 中国科学院合肥物质科学研究院 | Self-degradable biological film filler and preparation method and application thereof |
| CN114590886B (en) * | 2022-02-21 | 2023-09-05 | 中国科学院合肥物质科学研究院 | Self-degrading biological film filler and preparation method and application thereof |
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Application publication date: 20180327 |
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