CN108751392A - Based on mesh strap micron order activated carbon adhesive substrate water treatment filler - Google Patents
Based on mesh strap micron order activated carbon adhesive substrate water treatment filler Download PDFInfo
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- CN108751392A CN108751392A CN201811057317.3A CN201811057317A CN108751392A CN 108751392 A CN108751392 A CN 108751392A CN 201811057317 A CN201811057317 A CN 201811057317A CN 108751392 A CN108751392 A CN 108751392A
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- mesh
- activated carbon
- micron order
- filler
- water treatment
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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
-
- 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
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- 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)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Based on mesh strap micron order activated carbon adhesive substrate water treatment filler, belong to dirty, field of waste water treatment.Net strip is with the mesh-structured carrier framework material for essential characteristic, it is fixed base material that thin layer PVA is utilized on the basis of this specific framework material, surface is coated with micron order activated carbon fine particle, joining process by PVA glue makes micron order activated carbon fine particle is firm to be bonded in mesh-structured cylindric carrier framework material surface, it ultimately forms with micron order activated carbon fine particle surface and has meshed net strip filler, the filler is due to having preferable hydrodynamic structure feature, there is the activated carbon surface for being very suitable for bacterium apposition growth again, it is suitable for dirt, biological wastewater treatment, it can especially expand suitable for aerobic reaction condition.
Description
Technical field
The invention belongs to dirty, field of waste water treatment, more particularly to a kind of to be based on mesh strap micron order activated carbon adhesive substrate
Water treatment filler.
Background technology
The biologic packing material used in dirty, field of waste water treatment is broadly divided into two major classes at present, and one kind is soft-filler, packet
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
There are the problem of and invent.These filler major product types 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
The suspension flow regime of update and 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, above-mentioned filler biofilm effect in anaerobic pond is also possible that but in aerobic tank, compared with
Under strong hydraulic shear and stronger aeration intensity, these biofilm effects are very poor, and especially initial stage biofilm formation is extremely
It is difficult.By application survey, some products add 3 years time in reaction tank, and filler surface naked eyes do not see apparent life
Object film exists.The reason of so causing the result is the waterpower and aeration item that the form of bio-carrier designed at present is not suitable with aerobic tank
Part, so needing to create the filler for being more suitable for aerobic reaction tank condition in overall structure.
In addition, in water treatment field, activated carbon due to very excellent bacterial adherence, to water intermediate ion and molecule
To polluter in the stronger enriching of activated carbon granule surface under the conditions of extremely strong adsorptivity and microenvironment, and widely by
Using in the process forms such as such as biofilter, suspended biological carrier particle, fluid bed carrier.But up to the present respectively
It is also all only limitted to use by forms such as the particle of material, ball or shaped activated carbons of activated carbon itself in kind application method, and
Material for water treatment with certain hydraulics characteristic structure, and active charcoal advantageous feature is always to be pursued in industry
's.
Invention content
In view of the above problems, we pass through many experiments, from filler overall structure, especially filler surface shape
State, biomembrane membrance casting condition have carried out system research, form net strip with the mesh-structured carrier framework material for essential characteristic
Material, this invention are to utilize thin layer PVA for fixed base material on the basis of this specific framework material, and surface is coated with micron order activity
Charcoal fine particle, joining process by PVA glue makes micron order activated carbon fine particle is firm to be bonded in mesh-structured cylinder
Shape carrier framework material surface ultimately forms with micron order activated carbon fine particle surface and has meshed net strip and fill out
Material, the filler have the activated carbon table for being very suitable for bacterium apposition growth due to having preferable hydrodynamic structure feature
Face is suitable for dirty, biological wastewater treatment, can especially expand suitable for aerobic reaction condition.
It is of the invention a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, it is to have been formed based on original
Carrier material invention on the basis of and propose, which is characterized in that the generally netted ribbon structure of the filler, formed band
Twine material of main part be high molecular polymer such as polyethylene or polypropylene etc. and agstone, twine material of main part quality composition
It is 50-80% for high molecular polymer mass percentage, limestone powder mass percentage is 20-50%；In twine
One layer of fine and close active carbon layer being made of micron order active carbon particle is fixed in surface by the attachment of PVA materials, in terms of overall surface
The filler is formed by active carbon powder particle, with certain hydraulics characteristic, mesh strap active carbon filler.
Overall structure is in netted ribbon structure (see attached drawing 1), and mesh wire diameter is 0.5-1.0mm ((2) in attached drawing 1)；Net
The melting adhered formation reticular structure of silk intertexture；The mesh that twine is formed is preferably diamond shape ((3) in attached drawing 1), and mesh size exists
Between 1.0-2.0mm (excessive mesh is unfavorable for the formation of complete bio film).The width 10-30mm of ribbon structure, length can appoint
Meaning is long ((1) in attached drawing).
Active carbon layer thickness control is in the grain size less than 0.3mm, micron order active carbon particle：100-200 mesh.
Filler surface texture is the fine and close active carbon layer structure of micron order active carbon particle composition, which makes filler have
Activated carbon property, the architectural characteristic are very beneficial for microorganism and active pollution index attachment.The mesh-like structure of carrier
It is more advantageous to the formation of initial stage biomembrane, and formed biomembrane is stabilized, in addition, in the biomembrane update, mesh
Structure is difficult to the biological membrane part to fall off and regenerates the base needed for neoformation film when large stretch of biomembrane aging falls off in mesh
The holding of plinth biomass plays the role of good preservation.
A kind of production method based on mesh strap micron order activated carbon adhesive substrate water treatment filler, includes the following steps：
(1) lime stone of high molecular polymers mass fraction 50-80% and the 150-200 mesh such as polyethylene or polypropylene is used
Powder 20-50% carries out mixing granulation；
(2) it is got to know using hot-melt extruded twine and is rotated into the large-scale net cylinder making of a technique progress：Pass through hot-melt extruded machine
Twine die head rotary extrusion, is stretched, and is made mesh at uniform diamond shape, is shaped by water cooling, cut off net cylinder formed it is netted
Slab organization；
(3) netted structure carrier surface nature or controlled withering are for use after shaping；
(4) configuration quality score is the PVA aqueous solutions of 5-7%；
(5) by (4) PVA aqueous solutions by spraying method even application in the surface of (3) mesh carrier, form thin PVA
Liquid surface；
(6) utilize spraying method, by grain size be 150-200 mesh active carbon powder even application in thin with PVA liquid
Mesh carrier (5) surface of layer, thickness control is less than 0.3mm.
(7) (6) are immersed in saturation boric acid solution, glue connection are carried out to the PVA of carrier surface using boric acid, glue joins the time
It is 2 hours；
(8) after the completion of glue connection, clear water flushing is carried out to filler；
(9) ribbon (width 10-30mm) finished product is cut into.
Based on above-mentioned basic composition and production method, the filler following features are imparted：
(1) the fine and close active carbon layer structure of micron order active carbon particle composition is used, the filler surface of formation has completely
Activated carbon property, microorganism and active pollution index are easy attachment, make that biomembrane initial stage formation condition is more preferable, biofilm formation
Soon, it is good to be formed by biological membrane stability for attachment.
(2) in overall structure, the mesh-like structure of carrier is more advantageous to the formation of initial stage biomembrane, while mesh-structured
The rivet clasp structure that the biomembrane formed later passes through net ectonexine can be made to make biomembrane is whole more to stablize.In addition, in life
Mesh-structured when large stretch of biomembrane aging falls off in the update of object film, it is neoformation that the biological membrane part to fall off is difficult in mesh
The underlying biological amount holding that film is regenerated and needed plays the role of good preservation.
(3) filler proportion can be adjusted due to having mixed lime stone in main material polyethylene or polypropylene material, makes filler
It purposive can be made into the characteristics of being in precipitation, suspension in water or floating.
(4) by this used technical method, the making of the active carbon filler of arbitrary shape may be implemented.
The filler makes filler due to the special designing with mesh carrier overall structure and the activated carbon property of material surface
It is provided with the splendid stability of biomembrane after easy bacterial adherence, biomembrane high-load performance and biofilm, what it is to bring is excellent
Good biochemical property.The extensive use of the filler will greatly improve the biochemical property of existing activated sludge process reaction tank, be existing
There is sewage plant to propose mark transformation and create preferable technological approaches, preferable technical conditions are provided for new waterworks construction.
Description of the drawings
The present invention is based on mesh strap micron order activated carbon adhesive substrate water treatment filler structural schematic diagrams by Fig. 1.
Fig. 2 close-up schematic views；
1 based on mesh strap micron order activated carbon adhesive substrate water treatment filler, 2 mesh, 3 twines, 4 active carbon layers
Specific implementation mode
With reference to embodiment, the present invention will be further described, but the present invention is not limited to following embodiments.
Embodiment 1
It is prepared based on mesh strap micron order activated carbon adhesive substrate water treatment filler (see attached drawing 1 and partial enlargement attached drawing 2)：
(1) limestone powder of the high molecular polymers mass fractions 70% and 200 mesh such as polyethylene or polypropylene is used
30% carries out mixing granulation；
(2) it is got to know using hot-melt extruded twine and is rotated into technique and carries out being fabricated to mesh sheet shape：Pass through hot-melt extruded machine
Twine die head rotary extrusion, is stretched, and is made mesh at uniform diamond shape, is shaped by water cooling, cut off net cylinder formed it is netted
Slab organization；
(3) netted structure carrier surface nature or controlled withering are for use after shaping；
(4) the PVA aqueous solutions that configuration quality score is 6%；
(5) by (4) PVA aqueous solutions by spraying method even application in the surface of (3) mesh carrier, form thin PVA
Liquid surface；
(6) utilize spraying method, by grain size be 200 mesh active carbon powder even application in PVA liquid lamellas
Mesh carrier (5) surface, thickness average control is in 0.2mm；
(7) (6) are immersed in saturation boric acid solution, glue connection are carried out to the PVA of carrier surface using boric acid, glue joins the time
It is 2 hours；
(8) after the completion of glue connection, clear water flushing is carried out to filler；
(9) ribbon (width 10-30mm) finished product is cut into.
Utilize the preferable nitrifying activated sludge (rate of nitrification 15mg/L.h) of sewage plant activity, MLSS：3700mg/L, it is former
Water COD：45mg/L, NH4 +-N：55mg/L；Reaction condition (micro-pore aeration) DO：1.5mg/L, pH：7.3, HRT：6h, temperature T：25
℃；Reactor volume：200L, filler adding rate (stacking volume 30%)；Method of operation mixed liquor is stopped in reaction tank by 6h
Afterwards, mixed liquor, which goes out, flow to sedimentation basin, and sludge is through reflux (reflux ratio 100%) after precipitation.Filler specification：Net a width：15mm, item
Take mesh：1.0-2.0mm.
Biofilm culture runs 20d, and filler fenestral porosity is filled up by biomembrane, and laminated structure is integrally formed；As a result nitrification speed
Rate has initial 15mg/L.h to increase to 45mg/L.h, shows apparent high-speed nitrification effect.By 60d stable operations
Afterwards, it (is mixed using ice water, exchanger heat-exchange method) followed by low-temperature test, under the premise of 25 DEG C, using the 15d times,
Continued down, the final temperature of reactor that controls is 16 DEG C of progress stable operations, continuous operation 45d under the conditions of 16 DEG C, the filler
Nitrification rate can be kept in 38mg/L.h deviations within the scope of 2mg/L.h.Thus the excellent biomembrane retentivity of the filler is proved
Energy.By front and back 140d continuous operations, it is formed by biomembrane stabilization.
Claims (7)
1. one kind being based on mesh strap micron order activated carbon adhesive substrate water treatment filler, which is characterized in that the filler generally net
The ribbon structure of shape fixes one layer of densification being made of micron order active carbon particle on the surface of twine by the attachment of PVA materials
Active carbon layer, the filler is exactly to be formed by active carbon powder particle in terms of overall surface.
2. described in accordance with the claim 1 a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, feature
It is, it is high molecular polymer polyethylene or polypropylene and agstone, wherein high molecular polymer to form twine material of main part
Mass percentage is 50-80%, and limestone powder mass percentage is 20-50%.
3. described in accordance with the claim 1 a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, feature
It is, mesh wire diameter 0.5-1.0mm；The mesh that twine is formed is preferably diamond shape, and mesh size is between 1.0-2.0mm.
4. described in accordance with the claim 1 a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, feature
It is, the width 10-30mm of ribbon structure, length can be arbitrarily long.
5. described in accordance with the claim 1 a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, feature
It is, active carbon layer thickness control is less than 0.3mm.
6. described in accordance with the claim 1 a kind of based on mesh strap micron order activated carbon adhesive substrate water treatment filler, feature
It is, the grain size of micron order active carbon particle is：100-200 mesh.
7. preparing claim 1-6 any one of them one kind being based on mesh strap micron order activated carbon adhesive substrate water treatment filler
Method, which is characterized in that include the following steps：
(1) limestone powder of polyethylene or polypropylene high molecular polymer mass fraction 50-80% and 150-200 mesh is used
20-50% carries out mixing granulation；
(2) it is got to know using hot-melt extruded twine and is rotated into the large-scale net cylinder making of a technique progress：Pass through the twine of hot-melt extruded machine
Die head rotary extrusion, is stretched, and is made mesh at uniform diamond shape, is shaped by water cooling, and webbed of net cylinder shape is cut off
Shape structure；
(3) netted structure carrier surface nature or controlled withering are for use after shaping；
(4) configuration quality score is the PVA aqueous solutions of 5-7%；
(5) by (4) PVA aqueous solutions by spraying method even application in the surface of (3) mesh carrier, form thin PVA liquid
Surface；
(6) utilize spraying method, by grain size be 150-200 mesh active carbon powder even application in PVA liquid lamellas
Mesh carrier (5) surface；
(7) (6) are immersed in saturation boric acid solution, glue connection are carried out to the PVA of carrier surface using boric acid, the glue connection time is 2
Hour；
(8) after the completion of glue connection, clear water flushing is carried out to filler；
(9) ribbon finished product is cut into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057317.3A CN108751392A (en) | 2018-09-11 | 2018-09-11 | Based on mesh strap micron order activated carbon adhesive substrate water treatment filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057317.3A CN108751392A (en) | 2018-09-11 | 2018-09-11 | Based on mesh strap micron order activated carbon adhesive substrate water treatment filler |
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| CN108751392A true CN108751392A (en) | 2018-11-06 |
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| CN201811057317.3A Pending CN108751392A (en) | 2018-09-11 | 2018-09-11 | Based on mesh strap micron order activated carbon adhesive substrate water treatment filler |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050005870A1 (en) * | 2003-07-11 | 2005-01-13 | The Clorox Company | Composite absorbent particles |
| CN201240925Y (en) * | 2008-07-03 | 2009-05-20 | 温宝忠 | Porous active surface recombination filling material |
| CN103657399A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Preparation method of macromolecule activated carbon composite filler |
| CN107585856A (en) * | 2017-09-13 | 2018-01-16 | 北京工业大学 | Based on mesh strap nano carbon fiber adhesive substrate water treatment filler |
| CN107890853A (en) * | 2017-09-30 | 2018-04-10 | 成都尊华荣域科技有限公司 | A kind of wastewater efficient scavenging material |
-
2018
- 2018-09-11 CN CN201811057317.3A patent/CN108751392A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050005870A1 (en) * | 2003-07-11 | 2005-01-13 | The Clorox Company | Composite absorbent particles |
| CN201240925Y (en) * | 2008-07-03 | 2009-05-20 | 温宝忠 | Porous active surface recombination filling material |
| CN103657399A (en) * | 2012-09-06 | 2014-03-26 | 中国石油化工股份有限公司 | Preparation method of macromolecule activated carbon composite filler |
| CN107585856A (en) * | 2017-09-13 | 2018-01-16 | 北京工业大学 | Based on mesh strap nano carbon fiber adhesive substrate water treatment filler |
| CN107890853A (en) * | 2017-09-30 | 2018-04-10 | 成都尊华荣域科技有限公司 | A kind of wastewater efficient scavenging material |
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