CN107381790A - Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure - Google Patents
Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure Download PDFInfo
- Publication number
- CN107381790A CN107381790A CN201710823814.9A CN201710823814A CN107381790A CN 107381790 A CN107381790 A CN 107381790A CN 201710823814 A CN201710823814 A CN 201710823814A CN 107381790 A CN107381790 A CN 107381790A
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- China
- Prior art keywords
- silk
- solid structure
- water treatment
- carbon fiber
- adhesive substrate
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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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/107—Inorganic materials, e.g. sand, silicates
-
- 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
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/108—Immobilising gels, polymers or the like
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/109—Characterized by the shape
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure, belong to dirty, field of waste water treatment.The filler generally 3-D solid structure, it is the 3-D solid structure being bonded together by the filament cross stacking of a plurality of bending, space is formed between silk and silk, the filament of bending is wave linear structure；The material of main part of silk turns into high molecular polymer 70 80%, limestone powder 20 30% for high molecular polymer such as polyethylene or polypropylene etc. and agstone, silk material of main part quality group；In silk outer surface, growth is fixed with one layer of carbon nanofibers film, and carbon nanofibers film is the outer surface that carbon nanofibers vertically or are vertically fixed on silk in an array manner.Filler is set to be provided with the splendid stability of biomembrane after easy bacterial adherence, biomembrane high-load performance and biofilm, so as to which what is brought is excellent biochemical property.
Description
Technical field：
It is more particularly to a kind of to be based on 3-D solid structure Carbon fibe adhesive substrate water the invention belongs to dirty, field of waste water treatment
Handle filler.
Background technology：
Two major classes are broadly divided into biologic packing material used in dirty, field of waste water treatment at present, one kind is soft-filler, bag
Include it is soft combination and it is fixed, it is another kind of for hardness or semi soft packing, present invention is generally directed to hardness or semi soft packing institute
The problem of existing and invent.These filler major product species include at present：Pall ring, polyhedron empty ball, Haier's ring, ladder
Ring, Taylor's garland, conjugate ring, Raschig ring etc..These fillers mainly pursue the specific surface area and biomembrane of material in design
Renewal, and suspension flow regime of the filler in reaction tank under hydraulic blow, it is believed that bacterium can be formed very well in material surface
Biomembrane.Result of practical application is that above-mentioned filler biofilm effect in anaerobic pond is also possible that but in Aerobic Pond stronger
Hydraulic shear and stronger aeration intensity under, these biofilm effect extreme difference, especially biofilm formations at initial stage are extremely tired
It is difficult.By application survey, some products add the time of 3 years in reaction tank, and filler surface naked eyes do not see obvious biology
Film is present.The reason for so causing the result is the waterpower and aeration condition that the form of bio-carrier designed at present is not suitable with Aerobic Pond,
So need to create the filler for being more suitable for aerobic reaction tank condition in overall structure.
The content of the invention：
For above-mentioned problem, we pass through many experiments, hydrophilic from filler overall structure, especially filler itself
Property, filler surface state, biomembrane membrance casting condition carried out system research, form and formed with interlocking to accumulate by filamentary material
3-D solid structure is essential characteristic, is suitable for dirty, waste water using Carbon fibe processing formation fiber adhesive substrate on strand surface
The filler of processing.
One kind is based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler, it is characterised in that the filler is overall
It is the 3-D solid structure being bonded together by the filament cross stacking of a plurality of bending, silk and silk for 3-D solid structure
Between form space, the filament of bending is wave linear structure；The material of main part of silk is high molecular polymer such as polyethylene
Or polypropylene etc. and agstone, silk material of main part quality group turn into high molecular polymer 70-80%, limestone powder 20-
30%；In silk outer surface, growth is fixed with one layer of carbon nanofibers film, and carbon nanofibers film is carbon nanofibers with the shape of array
Formula is vertical or is fixed on the outer surface of silk vertically.
The mode of cross stacking is cross stacking in length and breadth between silk and silk.
Carbon nanofibers film surface is that the top of carbon nanofibers array has rugged structure.Limestone powder is made
For proportion and surface hydrophilicity conditioning agent；Limestone powder is 150-200 mesh.
Integrally formed structure is in 3-D solid structure shape (see accompanying drawing 1), a diameter of 0.5-1.0mm of silk；Silk, which interweaves, to be melted
Bonding forms 3-D solid structure, volume size：50mm × 50mm × 50mm to 1000mm × 1000mm × 1000mm, these three
The three-dimensional block works of dimension is directly launched in processing unit, or is stacked in processing unit.Silk and silk in 3-D solid structure
Between the space aperture that is formed to be maintained at 5mm-10mm ((3) in accompanying drawing 1), excessive space carrying biomass is on the low side, too small sky
The blocking for the biomembrane that gap is easily formed).
Filling carrier silk surface texture is the fiber biofilm set base layer structure using nano carbon fiber as material, the surface
It is made up of the nano carbon fiber largely perpendicular to carrier silk surface alignment, Carbon fibe length<100um, Carbon fibe diameter<
50nm, because Carbon fibe is unique positively charged material in non-modified fibrous material, therefore the filler surface adhesive substrate formed
Layer is overall positively charged, and the architectural characteristic is very beneficial for negatively charged microorganism and active pollution index attachment, attachment
The biological membrane stability formed is good.Biomembrane encircles carrier silk and is advantageous to the steady of biomembrane after carrier silk table face forms biomembrane
It is fixed, because the presence for having Carbon fibe silk significantly enhances the stability of biofilm structure in the biomembrane of formation, and formed
After overall biomembrane in water treatment system running, underlying biological when biofilm detachment updates under powerful gas and water impact
The reservation of film part.
A kind of preparation method based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler, including following step
Suddenly：
(1) using the lime stone of high molecular polymer mass fraction 70-80% and the 150-200 mesh such as polyethylene or polypropylene
Powder 20-30% carries out mixing granulation；
(2) carrier strand making is carried out using hot-melt extruded form：Single filament is extruded by hot-melt extruded machine, thoroughly cold
But have before using square pattern, be piled into 3-D solid structure, while make to form space spacing between silk and silk, pass through water cooling
Shaped；
(3) 3-D solid structure after shaping, carbon nanofibers plantation is carried out using high voltage electrostatic technique；
(4) gas and water mixing cleaning is carried out with aeration mode, removes the carbon nanofibers for being not affixed to silk table face；
(5) finished product is air-dried.
Based on above-mentioned basic composition and preparation method, the filler following features are imparted：
(1) positively charged Carbon fibe material is used, the filler surface set basic unit of formation is integrally positively charged, highly beneficial
Adhere in negatively charged microorganism and active pollution index, make the more preferable biofilm formation of biomembrane formation condition at initial stage fast,
It is good to adhere to the biological membrane stability formed,
(2) in overall structure, the special construction that carrier silk table face is formed by carbon fiber is more beneficial for biomembrane at initial stage
Formed, while carrier silk table face forms biomembrane after biomembrane and encircles carrier silk and is advantageous to that biomembrane is stable, in addition, the life formed
After the stability of biofilm structure, and the overall biomembrane of formation are significantly enhanced in thing film because of the presence for having Carbon fibe silk
Water treatment system running, the reservation of underlying biological film part when biofilm detachment updates under powerful gas and water impact.
(3) can be while filler proportion be adjusted due to having mixed lime stone in main material polyethylene or polypropylene material
Part improves the hydrophily on main filler surface.
The filler due to overall structure and the particular design of material surface structure, make filler be provided with easy bacterial adherence,
The splendid stability of biomembrane after biomembrane high-load performance and biofilm, so as to which what is brought is excellent biochemical property.The filler
Extensive use will be greatly enhanced the biochemical property of existing activated sludge process reaction tank, proposing mark transformation for existing sewage plant creates
Preferable technological approaches, preferable technical conditions are provided for new waterworks construction.
Brief description of the drawings
Fig. 1 present invention is based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler structural representation.
Fig. 2 partial enlarged drawings；
1 carrier silk, 2 and thread between space, 3 carbon nanofibers.
Embodiment
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
Made based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler (see accompanying drawing 1 and partial enlargement accompanying drawing 2)
It is standby：
(1) using high molecular polymer mass fraction 70-80% and 150-200 purposes such as main material polyethylene or polypropylene
Limestone powder 20-30% carries out mixing granulation；
(2) carrier silk making is carried out using hot-melt extruded form：Wall scroll carrier silk is extruded by hot-melt extruded machine, thorough
Have before cooling using square pattern, be piled into 3-D solid structure, and form appropriate space spacing.Determined by water cooling
Shape；
(3) the large-scale three dimensional stereochemical structure after shaping, nano carbon fiber plantation is carried out using high voltage electrostatic technique；
(4) gas and water mixing cleaning is carried out with strong aeration mode；
(5) finished product is air-dried.
Utilize sewage plant activity preferably nitrifying activated sludge (rate of nitrification 20mg/L.h), MLSS：4000mg/L, it is former
Water COD：420mg/L, NH4 +-N：55mg/L；Reaction condition (micro-pore aeration) DO：1.5mg/L, pH：7.0-7.5, HRT：6h, temperature
Spend T：25℃；Reactor volume：200L, filler adding rate (stacking volume 30%)；Method of operation mixed liquor passes through in reaction tank
After 6h is stopped, mixed liquor, which goes out, flow to sedimentation basin, and sludge is through flowing back (reflux ratio 100%) after precipitation.Filler specification：50mm×50mm
× 50mm, space 5-8mm.
Biofilm culture is run 15 days, and filling carrier silk is wrapped up by biomembrane；As a result rate of nitrification is by initial 15mg/L.h
45mg/L.h is increased to, shows obvious high-speed nitrification effect.After 45d stable operations, tried followed by low temperature
Test and (mixed using frozen water, exchanger heat-exchange method), it is anti-using 15d times, continued down, final control under the premise of 25 DEG C
Answering device temperature, continuous operation 30 days under the conditions of 16 DEG C, the filler can keep Nitrification rate to exist for 16 DEG C of progress stable operations
40mg/L.h deviations are in the range of 2mg/L.h.Thus the excellent biomembrane retention property of the filler is proved.By front and rear nearly 100
Its continuous biomembrane stabilization run, formed.
Claims (10)
1. one kind is based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler, it is characterised in that the filler is generally
3-D solid structure, is the 3-D solid structure being bonded together by the filament cross stacking of a plurality of bending, silk and silk it
Between form space, the filament of bending is wave linear structure；The material of main part of silk for high molecular polymer such as polyethylene or
Polypropylene etc. and agstone, silk material of main part quality group turn into high molecular polymer 70-80%, limestone powder 20-30%；
In silk outer surface, growth is fixed with one layer of carbon nanofibers film, and carbon nanofibers film is that carbon nanofibers are vertical in an array manner
Or the outer surface of silk is fixed on vertically.
2. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is that the mode of cross stacking is cross stacking in length and breadth between silk and silk.
3. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is that carbon nanofibers film surface is that the top of carbon nanofibers array has rugged structure.
4. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is that limestone powder is as proportion and surface hydrophilicity conditioning agent；Limestone powder is 150-200 mesh.
5. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is, a diameter of 0.5-1.0mm of silk.
6. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is, silk interweaves melting adhered formation 3-D solid structure, 3-D solid structure volume size：50mm × 50mm × 50mm is extremely
1000mm×1000mm×1000mm。
7. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is that the space aperture formed between the silk and silk in 3-D solid structure will be maintained at 5mm-10mm.
8. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is, Carbon fibe length<100um, Carbon fibe diameter<50nm.
9. being based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler according to one kind described in claim 1, it is special
Sign is that carbon nano-fiber is positively charged material.
10. prepare claim any one of 1-9 described in based on 3-D solid structure nano carbon fiber adhesive substrate water treatment filler
Method, it is characterised in that comprise the following steps：(1) using high molecular polymer mass fraction 70- such as polyethylene or polypropylene
The limestone powder 20-30% of 80% and 150-200 mesh carries out mixing granulation；
(2) carrier strand making is carried out using hot-melt extruded form：Single filament is extruded by hot-melt extruded machine, is thoroughly cooling down it
It is preceding to have using square pattern, 3-D solid structure is piled into, while make to form space spacing between silk and silk, carried out by water cooling
Setting；
(3) 3-D solid structure after shaping, carbon nanofibers plantation is carried out using high voltage electrostatic technique；
(4) gas and water mixing cleaning is carried out with aeration mode, removes the carbon nanofibers for being not affixed to silk table face；
(5) finished product is air-dried.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823814.9A CN107381790A (en) | 2017-09-13 | 2017-09-13 | Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710823814.9A CN107381790A (en) | 2017-09-13 | 2017-09-13 | Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure |
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| Publication Number | Publication Date |
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| CN107381790A true CN107381790A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710823814.9A Pending CN107381790A (en) | 2017-09-13 | 2017-09-13 | Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862572A (en) * | 2018-09-11 | 2018-11-23 | 北京工业大学 | Filamentous micron order active carbon adhesive substrate water treatment filler based on three-dimensional structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04187297A (en) * | 1990-11-21 | 1992-07-03 | Yasunobu Yoshida | Packing material for water treatment and water treatment |
| CN2326595Y (en) * | 1997-12-26 | 1999-06-30 | 丁扣林 | Solid net-shape microorganism carrier filler |
| CN2797354Y (en) * | 2004-05-11 | 2006-07-19 | 郭云飞 | Space 3-D netty filler |
| CN104445587A (en) * | 2014-12-26 | 2015-03-25 | 北京伊普国际水务有限公司 | High-density suspended filler and preparation method thereof |
| CN105906035A (en) * | 2016-06-22 | 2016-08-31 | 北京工业大学 | Micropore biofilm carrier filler based on mesh structure |
| CN105923793A (en) * | 2016-06-22 | 2016-09-07 | 北京工业大学 | Micro-porous biological film based on mesh structure and used for fixedly adding carrier filler |
| CN106219736A (en) * | 2016-07-26 | 2016-12-14 | 福建省闽东水产研究所 | Complex biological filtrate for BAF |
| CN106379988A (en) * | 2016-11-15 | 2017-02-08 | 北京南科大蓝色科技有限公司 | High-efficiency hydrophilic biological stuffing and device applied to sewage treatment |
-
2017
- 2017-09-13 CN CN201710823814.9A patent/CN107381790A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04187297A (en) * | 1990-11-21 | 1992-07-03 | Yasunobu Yoshida | Packing material for water treatment and water treatment |
| CN2326595Y (en) * | 1997-12-26 | 1999-06-30 | 丁扣林 | Solid net-shape microorganism carrier filler |
| CN2797354Y (en) * | 2004-05-11 | 2006-07-19 | 郭云飞 | Space 3-D netty filler |
| CN104445587A (en) * | 2014-12-26 | 2015-03-25 | 北京伊普国际水务有限公司 | High-density suspended filler and preparation method thereof |
| CN105906035A (en) * | 2016-06-22 | 2016-08-31 | 北京工业大学 | Micropore biofilm carrier filler based on mesh structure |
| CN105923793A (en) * | 2016-06-22 | 2016-09-07 | 北京工业大学 | Micro-porous biological film based on mesh structure and used for fixedly adding carrier filler |
| CN106219736A (en) * | 2016-07-26 | 2016-12-14 | 福建省闽东水产研究所 | Complex biological filtrate for BAF |
| CN106379988A (en) * | 2016-11-15 | 2017-02-08 | 北京南科大蓝色科技有限公司 | High-efficiency hydrophilic biological stuffing and device applied to sewage treatment |
Non-Patent Citations (2)
| Title |
|---|
| 刘强等: "《一种新型气浮-膜生物组合工业》", 31 October 2016, 中国矿业大学出版社 * |
| 高艳玲等: "《污水生物处理新技术》", 31 January 2006, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862572A (en) * | 2018-09-11 | 2018-11-23 | 北京工业大学 | Filamentous micron order active carbon adhesive substrate water treatment filler based on three-dimensional structure |
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Application publication date: 20171124 |
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