CN108529758A - MBBR is sustained carbon filler and preparation method thereof - Google Patents
MBBR is sustained carbon filler and preparation method thereof Download PDFInfo
- Publication number
- CN108529758A CN108529758A CN201810305454.8A CN201810305454A CN108529758A CN 108529758 A CN108529758 A CN 108529758A CN 201810305454 A CN201810305454 A CN 201810305454A CN 108529758 A CN108529758 A CN 108529758A
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- parts
- filler
- mbbr
- sustained
- mixed solution
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention discloses a kind of MBBR to be sustained carbon filler and preparation method thereof.The product biofilm speed of the present invention is fast, and biological adhesiveness is strong, not easily to fall off, and treatment effeciency is high, is especially used in BOD5The higher sanitary sewage of content and Industrial Wastewater Treatment, the biologic packing material of the present invention has extremely strong hydrophily and bioaffinity, and filler itself contains slow release carbon source, required carbon source can be provided for biological metabolism, cellular walnut sand material is conducive to microorganism growth, shorten the biofilm time, improves microbiological treatment efficiency.Removal efficiency of its ammonia nitrogen removal frank higher than 92%, COD is more than 83%, compared to the sewage that existing filler can preferably handle bio-degradable.
Description
Technical field
The present invention relates to technical field of polymer materials, specifically a kind of MBBR sustained releases carbon filler and preparation method thereof.
Background technology
MBBR is a kind of sewage treatment process newly developed in recent years, which can be by anaerobe and aerobic micro-
Biological metabolism is acted on sewage purification, is a kind of a kind of relatively high processing mode of cost performance, but in sewage disposal process
Want to achieve the effect that denitrogenation dephosphorizing, needs the hydraulic detention time for increasing nitrification and denitrification processing unit, stop for a long time
Cause the biology needed for microbial metabolism that can use carbon content wretched insufficiency, often lead to sludge bulking, MBBR techniques is caused to be lost
Lose wastewater treatment efficiency.Microbe stuffing used in MBBR does not have the function of carbon sustained release usually at present, needs additionally to add
Methanol or natural biomass materials provide carbon source for microbial metabolism, persistently add the place that carbon source not only increases sewage disposal
Cost is managed, is safeguarded with greater need for special messenger, sewage treatment plant's automation, intelligence degree are reduced.
Invention content
It is an object of the present invention to provide a kind of MBBR to be sustained carbon filler and preparation method thereof, it is both biochemical treatment unit
The growing carrier of middle microorganism provides required carbon for microbial metabolism also by filler itself slowly biodegradable effect
Source need not additionally add carbon source, and the biofilm time can also be promoted to shorten, and also provide more attachment positions for microorganism
Point.
The invention is realized in this way：MBBR is sustained carbon filler, it is characterised in that：It calculates according to the mass fraction, including poly- hydroxyl
35-45 parts of base alkanoic acid ester, 20-30 parts of polylactic acid, 10-15 parts of precipitated calcium carbonate, 5-20 parts of natural biomass walnut sand, maleic acid
3-5 parts of acid anhydride, 0.2~0.4 part of magnesium chloride, 0.5-1 parts of composite coupler, 0.5-1 parts of white oil, gathers 0.3~0.6 part of ferrous sulfate
0.6~1.5 part of 1.8~4 parts of vinyl alcohol, stearic acid 0.6~1.5 and calcium chloride.
The natural biomass walnut sand grain size is more than 320 mesh.
MBBR is sustained the preparation method of carbon filler, takes each component by above-mentioned mass fraction, includes the following steps：
1) above-mentioned each composition is taken to be dissolved in tetrahydrofuran and alcohol mixed solution, the solid-liquid ratio of solid component and mixed solution
For 8-12：200, unit is g/ml, and mixed solution is 8 by volume by 99.9% tetrahydrofuran and absolute ethyl alcohol：2 example group
At stirring；
2) material of mixing in step 1) is added twin-screw extrude into extruding pelletization；
3) particle that step 2) obtains is put into again in screw machine extrusion, by extrusion die extrusion forming, obtains filler
Finished product；The annulate lamella concentric but that diameter is different by 3-5 layers of filler finished product forms, and each layer annulate lamella is connected by skeleton line
It connects, and receives the accessory pinna structure for being equipped with protrusion outwardly or inwardly on every layer of annulate lamella, but the outer surface of filler finished product is light
Sliding cylindrical structure, in the middle part of through-hole also without accessory pinna structure.Compared with prior art, the invention has the advantages that：
1, product biofilm speed of the invention is fast, and biological adhesiveness is strong, not easily to fall off, and treatment effeciency is high, is especially used in
BOD5The higher sanitary sewage of content and Industrial Wastewater Treatment, biologic packing material of the invention have extremely strong hydrophily and biology parent
And property, and filler itself contains slow release carbon source, required carbon source can be provided for biological metabolism, cellular walnut sand material is conducive to micro-
Biological growth shortens the biofilm time, improves microbiological treatment efficiency.Its ammonia nitrogen removal frank is equal higher than the removal efficiency of 92%, COD
More than 83%, compared to the sewage that existing filler can preferably handle bio-degradable.
2, by polyhydroxyalkanoates and polylactic acid as degradable high polymer, which can be product of the invention
Microbial metabolism provides slow release carbon source.Precipitated calcium carbonate can both grow for microorganism as main material and provide slow release carbon source,
The intensity in turn ensuring microbe stuffing provides attachment matrix for microorganism growth；The porous structure of natural biomass walnut sand
More more attachment spaces can be provided for biological object growth, shorten the biofilm time of microorganism, ferrous sulfate and magnesium chloride are
Microbial metabolism provides required nutritive salt, and microorganism is promoted to grow；It is maleic anhydride, composite coupler, white oil, polyvinyl alcohol, hard
Resin acid and calcium chloride are to reinforce bonding force between composition material each section, and strong knot is formed inside filler composition material
It closes, further enhances filler self-strength.
3, product design unique texture of the invention, designs unique texture, filler global density close to water density, by
The comprehensive function of filler gravity itself, buoyancy and water movement shearing force, convenient for moving reciprocatingly in sewage disposal process, this
Sewage can not only be uniformly mixed, filler plays stirring wherein can also be such that sewage is uniformly mixed.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view of attached drawing 1.
Specific implementation mode
Embodiment 1：MBBR is sustained carbon filler, calculates according to the mass fraction, including 40 parts of polyhydroxyalkanoates, polylactic acid 30
Part, 6 parts of precipitated calcium carbonate, 15 parts of natural biomass walnut sand, 4 parts of maleic anhydride, 0.5 part of ferrous sulfate, 0.3 part of magnesium chloride,
1 part of 0.8 part of composite coupler, 0.8 part of white oil, 2.5 parts of polyvinyl alcohol, 1 part of stearic acid and calcium chloride are to prepare raw material；It is natural raw
Material walnut sand needs to crush using ultrafine crusher in advance, and mesh number is more than 320 mesh after crushing.
MBBR is sustained the preparation method of carbon filler, takes each component by above-mentioned mass fraction, includes the following steps：
1) take above-mentioned each composition be dissolved in 2000ml tetrahydrofurans and alcohol mixed solution (mixed solution by 99.9% tetrahydrochysene
Furans and absolute ethyl alcohol are 8 by volume：2 example composition) in, it stirs；
2) material of mixing in step 1) is added twin-screw extrude into extruding pelletization；
3) particle that step 2) obtains is put into again in screw machine extrusion, by extrusion die extrusion forming, obtains filler
Finished product；The annulate lamella concentric but that diameter is different by 4 layers of filler finished product forms, and each layer annulate lamella is connected by skeleton line,
And the accessory pinna structure for being equipped with protrusion outwardly or inwardly is received on every layer of annulate lamella, but the outer surface of filler finished product is smooth
Cylindrical structure, in the middle part of through-hole also without accessory pinna structure.
Embodiment 2：MBBR is sustained carbon filler, calculates according to the mass fraction, including 39 parts of polyhydroxyalkanoates, polylactic acid 29
Part, 12 parts of precipitated calcium carbonate, 12 parts of natural biomass walnut sand, 4 parts of maleic anhydride, 0.4 part of ferrous sulfate, magnesium chloride 0.25
Part, 0.65 part of composite coupler, 0.6 part of white oil, 2.5 parts of polyvinyl alcohol, 1 part of stearic acid and 1 part of calcium chloride are to prepare raw material；It
Right biological material walnut sand needs to crush using ultrafine crusher in advance, and mesh number is more than 320 mesh after crushing.
The preparation method is the same as that of Example 1.
Embodiment 3：MBBR is sustained carbon filler, calculates according to the mass fraction, including 37 parts of polyhydroxyalkanoates, polylactic acid 28
Part, 10 parts of precipitated calcium carbonate, 18 parts of natural biomass walnut sand, 3 parts of maleic anhydride, 0.3 part of ferrous sulfate, 0.2 part of magnesium chloride,
0.5 part of 0.5 part of composite coupler, 0.5 part of white oil, 1.5 parts of polyvinyl alcohol, 0.5 part of stearic acid and calcium chloride are to prepare raw material；It
Right biological material walnut sand needs to crush using ultrafine crusher in advance, and mesh number is more than 320 mesh after crushing.
The preparation method is the same as that of Example 1.
Embodiment 3：MBBR is sustained carbon filler, calculates according to the mass fraction, including 44 parts of polyhydroxyalkanoates, polylactic acid 30
Part, is answered at 8 parts of precipitated calcium carbonate, 6 parts of natural biomass walnut sand, 5 parts of maleic anhydride, 0.6 part of ferrous sulfate, 0.4 part of magnesium chloride
It is to prepare raw material to close 1.5 parts of 1.0 parts of coupling agent, white oil 1.0,3.5 parts of polyvinyl alcohol, 1.5 parts of stearic acid and calcium chloride；It is natural raw
Material walnut sand needs to crush using ultrafine crusher in advance, and mesh number is more than 320 mesh after crushing.
The preparation method is the same as that of Example 1.
Comparative example 1
Polylactic acid in embodiment 1 is changed to polyhydroxyalkanoates by the first step, remaining operation is identical with embodiment 1,
It takes 70 parts of polyhydroxyalkanoates to be dissolved in tetrahydrofuran and alcohol mixed solution with remaining raw material, is placed in mixing machine, stir
Uniformly；
Second step, will in 1 first step of comparative example mix after solid material input double screw extruder in, melting extrusion is made
Grain；
During third step, the particle input screw machine for producing 1 second step of comparative example squeeze out, it is squeezed by extrusion die
Type, obtain filler appearance be similar to cylinder, but upper end have recess outer wall and center framework on there are accessory pinna, filler position of centre of gravitys
It moves down.In filler is launched to water naturally, there are downwardly directions for filler.Obtain filler product 5#, density 0.948g/
cm3。
Comparative example 2
Polyhydroxyalkanoates in embodiment 1 is changed to polylactic acid, remaining operation is identical with embodiment 1, that is, takes 70
Part polylactic acid is dissolved in remaining raw material in tetrahydrofuran and alcohol mixed solution, is placed in mixing machine, is stirred evenly；Remaining operation
It is identical as comparative example 1, obtain filler product 6#, density 0.967g/cm3。
Comparative example 3
Using with preparation method more identical than embodiment 1, the difference is that being added without natural biomass in product form
Material walnut sand, remaining operation is identical as comparative example 1, and it is 0.895g/cm to obtain filler product 7# density3。
Take etc. quality embodiment (1#, 2#, 3#, 4#) and comparative example (5#, 6#, 7#) totally 7 products are placed in water immersion
It six hours, takes out and measures moisture content after standing 30min, 7 product moisture content of gained are as shown in table 1；
1 products obtained therefrom moisture content of table
The embodiment (1#, 2#, 3#, 4#) and comparative example (5#, 6#, 7#) product for the quality such as taking are placed in 7 and move in parallel bed
It is tested in membrane bioreactor.Wherein sludge and waste water are all from certain factory's sewage treatment unit, and floating stuffing is filled out
It is 40% to fill rate, water quality pH6.5~7.8 in reactor, 23~27.5 DEG C of temperature, C/N/P=100:5:1, dissolved oxygen concentration 2
~3.5mg/L, COD concentration 250mg/L, ammonia nitrogen concentration 35mg/L, hydraulic detention time 4h, experimental result are as shown in table 2；
The different filler Inlet and outlet water effects of table 2 and removal rate
As can be seen from Table 2, the MBBR carbon source Controlled-release filler biofilm times prepared by the present invention significantly shorten, COD and ammonia nitrogen are gone
Except rate significantly improves.
Claims (3)
1. a kind of MBBR is sustained carbon filler, it is characterised in that：It calculates according to the mass fraction, including 35-45 parts of polyhydroxyalkanoates, poly-
20-30 parts of lactic acid, 10-15 parts of precipitated calcium carbonate, 5-20 parts of natural biomass walnut sand, 3-5 parts of maleic anhydride, ferrous sulfate
0.3~0.6 part, it is 0.2~0.4 part of magnesium chloride, 0.5-1 parts of composite coupler, 0.5-1 parts of white oil, 1.8~4 parts of polyvinyl alcohol, hard
0.6~1.5 part of resin acid 0.6~1.5 and calcium chloride.
2. a kind of MBBR according to claim 1 is sustained carbon filler, it is characterised in that：The natural biomass walnut sand
Grain size is more than 320 mesh.
3. a kind of preparation method of MBBR sustained releases carbon filler as described in claim 1, which is characterized in that press above-mentioned mass fraction
Each component is taken, is included the following steps：
1) above-mentioned each composition is taken to be dissolved in tetrahydrofuran and alcohol mixed solution, the solid-liquid ratio of solid component and mixed solution is 8-
12：200, unit is g/ml, and mixed solution is 8 by volume by 99.9% tetrahydrofuran and absolute ethyl alcohol：2 example composition,
It stirs；
2) material of mixing in step 1) is added twin-screw extrude into extruding pelletization；
3) particle that step 2) obtains is put into again in screw machine extrusion, by extrusion die extrusion forming, obtains filler finished product；
The annulate lamella concentric but that diameter is different by 3-5 layers of filler finished product forms, and each layer annulate lamella is connected by skeleton line, and
The accessory pinna structure for being equipped with protrusion outwardly or inwardly is received on every layer of annulate lamella, but the outer surface of filler finished product is smooth circle
Column construction, in the middle part of through-hole also without accessory pinna structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305454.8A CN108529758A (en) | 2018-04-08 | 2018-04-08 | MBBR is sustained carbon filler and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305454.8A CN108529758A (en) | 2018-04-08 | 2018-04-08 | MBBR is sustained carbon filler and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN108529758A true CN108529758A (en) | 2018-09-14 |
Family
ID=63482821
Family Applications (1)
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| CN201810305454.8A Pending CN108529758A (en) | 2018-04-08 | 2018-04-08 | MBBR is sustained carbon filler and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160619A (en) * | 2018-11-02 | 2019-01-08 | 江苏中车环保设备有限公司 | A kind of application method having both filler with slow release carbon source suitable for rural sewage treatment |
| CN109160620A (en) * | 2018-11-02 | 2019-01-08 | 江苏中车环保设备有限公司 | One kind being suitable for rural sewage treatment slow release carbon source and preparation method thereof |
| CN109160597A (en) * | 2018-10-30 | 2019-01-08 | 王德喜 | A kind of biological carrier filler for sewage treatment |
| CN110921827A (en) * | 2019-12-18 | 2020-03-27 | 安徽骏泰塑业科技有限公司 | Novel composite carbon source slow-release MBBR filler for low-carbon biological filter |
| CN111204864A (en) * | 2020-01-21 | 2020-05-29 | 安徽环境科技集团股份有限公司 | MBBR filler and preparation method thereof |
| CN111333947A (en) * | 2020-03-25 | 2020-06-26 | 江苏瑞杰特环保科技有限公司 | Blue algae-based nano biological membrane material and preparation method thereof |
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| CN103408129A (en) * | 2013-08-19 | 2013-11-27 | 中国水产科学研究院渔业机械仪器研究所 | Degradable bio-compatible water treatment filler and preparation method thereof |
| CN105968754A (en) * | 2016-05-20 | 2016-09-28 | 苏州倍力特物流设备有限公司 | Buffer type composite package material and preparation method thereof |
| CN108504058A (en) * | 2018-04-08 | 2018-09-07 | 贵州省材料产业技术研究院 | From oxygenation microbial degradation filler and preparation method thereof |
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2018
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Patent Citations (3)
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| CN103408129A (en) * | 2013-08-19 | 2013-11-27 | 中国水产科学研究院渔业机械仪器研究所 | Degradable bio-compatible water treatment filler and preparation method thereof |
| CN105968754A (en) * | 2016-05-20 | 2016-09-28 | 苏州倍力特物流设备有限公司 | Buffer type composite package material and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160597A (en) * | 2018-10-30 | 2019-01-08 | 王德喜 | A kind of biological carrier filler for sewage treatment |
| CN109160619A (en) * | 2018-11-02 | 2019-01-08 | 江苏中车环保设备有限公司 | A kind of application method having both filler with slow release carbon source suitable for rural sewage treatment |
| CN109160620A (en) * | 2018-11-02 | 2019-01-08 | 江苏中车环保设备有限公司 | One kind being suitable for rural sewage treatment slow release carbon source and preparation method thereof |
| CN110921827A (en) * | 2019-12-18 | 2020-03-27 | 安徽骏泰塑业科技有限公司 | Novel composite carbon source slow-release MBBR filler for low-carbon biological filter |
| CN111204864A (en) * | 2020-01-21 | 2020-05-29 | 安徽环境科技集团股份有限公司 | MBBR filler and preparation method thereof |
| CN111204864B (en) * | 2020-01-21 | 2022-04-19 | 安徽环境科技集团股份有限公司 | MBBR filler and preparation method thereof |
| CN111333947A (en) * | 2020-03-25 | 2020-06-26 | 江苏瑞杰特环保科技有限公司 | Blue algae-based nano biological membrane material and preparation method thereof |
| CN111333947B (en) * | 2020-03-25 | 2022-10-14 | 江苏瑞杰特环保科技有限公司 | Blue algae-based nano biological membrane material and preparation method thereof |
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Application publication date: 20180914 |
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