CN105923793A - Micro-porous biological film based on mesh structure and used for fixedly adding carrier filler - Google Patents
Micro-porous biological film based on mesh structure and used for fixedly adding carrier filler Download PDFInfo
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- CN105923793A CN105923793A CN201610460835.4A CN201610460835A CN105923793A CN 105923793 A CN105923793 A CN 105923793A CN 201610460835 A CN201610460835 A CN 201610460835A CN 105923793 A CN105923793 A CN 105923793A
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- Prior art keywords
- mesh
- biological film
- carrier filler
- filler
- main material
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- 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
- C02F3/12—Activated sludge processes
-
- 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
Abstract
The invention discloses a micro-porous biological film based on a mesh structure and used for fixedly adding a carrier filler and belongs to the field of treatment on sewage and wastewater. A main material of the carrier is a macromoleclar polymer such as polyethylene or polypropylene; auxiliary materials which comprise polyvinyl alcohol and limestone powder are added; the addition amount of polyvinyl alcohol is 10% of the total weight of the main material and the auxiliary materials; the limestone powder is 150-200-mesh limestone powder; the addition amount of the limestone powder is 15-20% of the total weight of the main material and the auxiliary material; the overall structure is mesh-shaped; mesh filaments of the biological film carrier filler have two-stage gaps; primary micro-foam gaps are formed by the foaming process; secondary surface micro-fine gaps are formed by dissolving out limestone microparticles. Through the micro-porous biological film, the filler has high bacterial adhesion; the biological film is high in loading performance; the formed biological film is excellent in stability, so that the biological film is excellent in biochemical properties.
Description
Technical field:
The invention belongs to dirt, field of waste water treatment, be suitable for admittedly based on mesh-structured biomembrane particularly to a kind of
Fixed pattern adds carrier filler.
Background technology:
The biologic packing material used in dirty, field of waste water treatment at present is broadly divided into two big classes, and a class is soft filling out
Material, including soft combination and fixed, another kind of for rigid or semi soft packing, present invention is generally directed to rigid
Or problem existing for semi soft packing and invent.These filler major product kinds include at present: Pall ring,
Polyhedron empty ball, Haier's ring, cascade ring, Taylor's garland, conjugate ring, Raschig ring etc..These fillers are in design
The upper main specific surface area pursuing material and biomembranous renewal, and filler is in reaction tank under hydraulic blow
Suspension flow regime, it is believed that antibacterial can form good biomembrane at material surface.Result of practical application is, on
State filler in anaerobic pond biofilm effect it is also possible that but at stronger hydraulic shear and stronger in Aerobic Pond
Under aeration intensity, these biofilm effect extreme differences, by application survey, some product adds in reaction tank
The time of 3 years, filling surface naked eyes do not see that obvious biomembrane exists.The reason so causing this result is,
The form of bio-carrier of design is not suitable with waterpower and the aeration condition of Aerobic Pond at present, so needing to create in overall structure
Produce the filler being more suitable for aerobic reaction pond condition.
Summary of the invention:
For the problem of above-mentioned existence, we are through great many of experiments, hydrophilic from filler overall structure, filler itself
Property, filling surface state, biomembrane film forming thickness have carried out systematic study, define with mesh-structured be basic
Feature be suitable for dirt, waste water process filler.
A kind of based on mesh-structured micropore biological membrane carrier filler, it is characterised in that carrier main material is poly-second
The high molecular polymer such as alkene or polypropylene, and add auxiliary material polyvinyl alcohol and limestone powder, polyvinyl alcohol
Addition is main material and the 10% of auxiliary material gross weight, and limestone powder is 150-200 mesh, and addition is main
Material and the 15-20% of auxiliary material gross weight；Overall structure is mesh sheet shape.
Overall structure is fourdrinier wire lamellar ((1) see in accompanying drawing), and mesh sheet mesh wire diameter is that 0.5-1.0mm is (attached
In figure (5))；The twine melting adhered shape fourdrinier wire lamellar of intertexture, netting width 10-30mm；Netting length can be appointed
Meaning is long, and the mesh ((4) in accompanying drawing) of the bonding formation of twine, mesh size is (excessive between 1.0-2.0mm
Mesh is unfavorable for the formation of complete bio film).
Biofilm carrier twine contains two-stage space, and one-level microvesicle space is to be formed by foaming process, secondary surface
Fine voids is to be formed by limestone molecule acid dissolution.
Manufacture method, comprises the following steps:
(1) high molecular polymer mass fraction 70-80%, the polyethylene such as main material polyethylene or polypropylene are used
The limestone powder 10-20% of alcohol mass fraction 10% and 150-200 mesh carries out mixing granulation；
(2) hot-melt extruded twine die head rotational molding technology is used: revolved by the twine die head of hot-melt extruded machine
Turn and be extruded into large-scale Major diameter net cylinder, stretch, make mesh uniformly rhombus, after foaming fully, pass through
Water-cooled shapes.
(3) form large-scale mesh sheet by cutting off large-scale net cylinder after sizing, utilize sulphuric acid or hydrochloric acid acid solution to soak
Bubble, makes part limestone powder be dissolved by acid and forms fine voids；This step can require by adjusting according to proportion
Joint sulphuric acid or the concentration of hydrochloric acid, dissolution soak time adjust the stripping quantity of limestone particle, and then regulation is formed
Fine voids and the proportion of biofilm carrier；
(4) cleaning and by the way of adding alkali with water, it is neutral for adjusting pH；
(5) air-dry；
(6) large-scale mesh sheet is formed final product-strip mesh sheet by shearing.
Based on above-mentioned basic composition and manufacture method, impart this filler following features:
(1) this manufacture method, owing to main material polyethylene or polypropylene material having mixed polyvinyl alcohol, with
Time combine the microvesicle space that foaming formed and make main structure material be provided with ion-permeable, it is achieved thereby that structure
Internal limestone can dissolve in acid solution, enables the filling-material structure body being made up of macromole to form ultra micro
Fine texture space, simultaneously as the participation of polyvinyl alcohol, has good hydrophilicity, beneficially antibacterial
Attachment；Additionally, due to the addition of limestone powder, it is not dissolved part and can regulate the proportion of filler.
The microvesicle volume general control of foaming gained is below 20%, and acid dissolving limestone amount is whole with carrier filler
Weight density requirements, is adjusted by acid concentration, dissolution time.
(2) in overall structure, the mesh-structured biomembrane that can make to be formed later is by layer before and after mesh sheet
The formation of rivet clasp structure, entirety is more stable；
(3) this strip carrier filler, can be according to addition and space, reaction tank Adding Area in reaction tank
With volume feature, any-mode is used to fix, as long as ensureing that carrier is uniformly distributed in instead in conjunction with different fixed mounts
Answer district.
This filler forms the particular design of fine structure due to mesh overall structure and mesh material, makes filler have
The stability that after easy bacterial adherence, biomembrane high-load performance and biofilm, biomembrane is splendid, thus bring
It it is excellent biochemical property.The extensively application of this filler will be greatly enhanced the life of existing activated sludge process reaction tank
Change performance, propose mark transformation for existing Sewage Plant and create preferable technological approaches, provide preferably for new waterworks construction
Technical conditions.
Accompanying drawing explanation
Fig. 1 is that the present invention is suitable for fixed interpolation carrier filler structural representation based on mesh-structured micropore biological film.
Fig. 2 is the partial enlarged drawing of (3) of Fig. 1；
Fig. 3 is to use framework fixed based on mesh-structured micropore biological membrane carrier filling-material structure schematic diagram.
(1) mesh sheet shape is suitable for fixed interpolation carrier filler, (2) based on mesh-structured micropore biological film
Mesh sheet fixed mount, (3) mesh sheet partial enlargement, (4) mesh, (5) twine.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, but the present invention is not limited to following example.
Embodiment 1
Fig. 1-3 are seen, preparation based on mesh-structured micropore biological membrane carrier filler
(1) high molecular polymer mass fraction 75%, the polyvinyl alcohol such as main material polyethylene or polypropylene are used
The limestone powder 15% of mass fraction 10% and 150-200 mesh carries out mixing granulation；
(2) use hot-melt extruded twine to get to know to be rotated into a technique and carry out being fabricated to large-scale net cylinder, pass through hot melt
The twine die head rotary extrusion of extruder, stretches, makes mesh shape, and after foaming fully, is entered by water-cooled
Row setting, cuts off large-scale net cylinder and forms large-scale mesh sheet.
(3) large-scale mesh sheet after molding, utilizes 30% sulphuric acid or hydrochloric acid acid solution to soak, soak time 1.5h,
The limestone powder making about 10% is dissolved by acid and forms fine voids；
(4) cleaning and by the way of adding alkali with water, it is neutral for adjusting pH；
(5) air-dry；
(6) large-scale mesh sheet is formed final product-strip mesh sheet by shearing；
(7) this example uses framework fixed, and actual fixed form is not limited to this kind of form (such as wound form etc.).
Utilize Sewage Plant activity preferably nitrifying activated sludge (rate of nitrification is 20mg/L.h), MLSS:
3700mg/L, former water COD:450mg/L, NH4 +-N:65mg/L；Reaction condition (micro-pore aeration) DO:
1.2mg/L, pH:6.8, HRT:6h, temperature T:25 DEG C；Reactor volume: 150L, filler adding rate
(stacking volume 20%)；Method of operation mixed liquor is at reaction tank after 6h stops, and mixed liquor goes out to flow to precipitation
Pond, after precipitation, mud is through backflow (reflux ratio 100%).Filler specification: mesh sheet width: 15mm, mesh: 2mm,
Mesh sheet is long: 4000mm.
Biofilm is cultivated and is run 32 days, and filler fenestral porosity is filled up by biomembrane, and tubular structure is integrally formed；Knot
Really rate of nitrification has initial 15mg/L.h to increase to 62mg/L.h, shows obvious two-forty nitrification effect.
After 15d stable operation, followed by low-temperature test (using frozen water mixing, exchanger heat-exchange method),
Under 25 DEG C of premises, utilizing 15d time, continued down, final control temperature of reactor is 16 DEG C and carries out steady
Fixed operation, runs 40 days under the conditions of 16 DEG C continuously, and this filler can keep Nitrification rate inclined at 30mg/L.h
Difference is in the range of 2mg/L.h.Thus prove the biomembrane holding performance that this filler is excellent.Through front and back 102 days
Running continuously, the biomembrane formed is stable.
Claims (6)
1. one kind based on mesh-structured micropore biological membrane carrier filler, it is characterised in that carrier main material is polyethylene or polypropylene
Deng high molecular polymer, and adding auxiliary material polyvinyl alcohol and limestone powder, polyvinyl alcohol addition is main material and auxiliary
Helping the 10% of material gross weight, limestone powder is 150-200 mesh, and addition is main material and the 15-20% of auxiliary material gross weight；
Overall structure is mesh sheet shape；The twine of biofilm carrier filler contains two-stage space, and one-level microvesicle space is by foaming process shape
Becoming, secondary surface fine voids is to be formed by limestone molecule acid dissolution.
2. a kind of based on mesh-structured micropore biological membrane carrier filler according to described in claim 1, it is characterised in that foaming institute
The microvesicle volumetric void fraction obtained is below 20%.
3. a kind of based on mesh-structured micropore biological membrane carrier filler according to described in claim 1, it is characterised in that overall knot
Structure is fourdrinier wire lamellar, netting width 10-30mm.
4. a kind of based on mesh-structured micropore biological membrane carrier filler according to described in claim 1, it is characterised in that mesh sheet net
Filament diameter is 0.5-1.0mm；Mesh size is between 1.0-2.0mm.
5. preparation method based on mesh-structured micropore biological membrane carrier filler described in any one of claim 1-4, its feature exists
In, comprise the following steps:
(1) high molecular polymer mass fraction 70-80%, the polyvinyl alcohol mass fraction such as main material polyethylene or polypropylene are used
The limestone powder 10-20% of 10% and 150-200 mesh carries out mixing granulation；
(2) hot-melt extruded twine die head rotational molding technology is used: formed greatly by the twine die head rotary extrusion of hot-melt extruded machine
Type Major diameter net cylinder, stretches, and makes mesh uniformly rhombus, after foaming fully, is shaped by water-cooled；
(3) form large-scale mesh sheet by cutting off large-scale net cylinder after sizing, utilize sulphuric acid or hydrochloric acid acid solution to soak, make part stone
Lime stone powder is dissolved by acid and forms fine voids；
(4) cleaning and by the way of adding alkali with water, it is neutral for adjusting pH；
(5) air-dry；
(6) large-scale mesh sheet is formed final product-strip mesh sheet by shearing.
6. according to the method for claim 5, it is characterised in that step (3) is by regulation sulphuric acid or the concentration of hydrochloric acid, dissolution immersion
Time adjusts the stripping quantity of limestone particle, and then regulation forms fine voids and the proportion of biofilm carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460835.4A CN105923793B (en) | 2016-06-22 | 2016-06-22 | It is a kind of that fixed addition carrier filler is suitble to based on mesh-structured micropore biological film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460835.4A CN105923793B (en) | 2016-06-22 | 2016-06-22 | It is a kind of that fixed addition carrier filler is suitble to based on mesh-structured micropore biological film |
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| Publication Number | Publication Date |
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| CN105923793A true CN105923793A (en) | 2016-09-07 |
| CN105923793B CN105923793B (en) | 2018-11-30 |
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| CN201610460835.4A Active CN105923793B (en) | 2016-06-22 | 2016-06-22 | It is a kind of that fixed addition carrier filler is suitble to based on mesh-structured micropore biological film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381790A (en) * | 2017-09-13 | 2017-11-24 | 北京工业大学 | Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure |
| 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 |
| CN111453834A (en) * | 2020-04-07 | 2020-07-28 | 天津科信建设工程检测有限公司 | Preparation method of bioactive filler based on polypropylene foam material and bioactive filler prepared by same |
| CN111875036A (en) * | 2020-07-20 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Sewage treatment filler loaded with biological membrane and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007013895A1 (en) * | 2007-03-20 | 2008-09-25 | LUS GmbH - Labor für Umweltschutz und chemische Analytik | Use of porous concrete as conditioning agent for treating fine silty dredged material by mixing porous concrete, which accelerates dewatering of dredge material, binding of pollutants, producing grain structure and bringing |
| CN102583719A (en) * | 2012-02-22 | 2012-07-18 | 广东绿园环境保护工程有限公司 | Active composite suspended filler |
| CN103951047A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of anaerobic ammonia oxidizing bacteria immobilized straight-tubular bioactive filler based on reticulate carrier |
| CN103951073A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of ammonia oxidizing bacteria immobilized star-shaped bioactive filler based on reticulate carrier |
| CN103951084A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of immobilized straight-tubular bioactive filler based on reticulate carrier |
-
2016
- 2016-06-22 CN CN201610460835.4A patent/CN105923793B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007013895A1 (en) * | 2007-03-20 | 2008-09-25 | LUS GmbH - Labor für Umweltschutz und chemische Analytik | Use of porous concrete as conditioning agent for treating fine silty dredged material by mixing porous concrete, which accelerates dewatering of dredge material, binding of pollutants, producing grain structure and bringing |
| CN102583719A (en) * | 2012-02-22 | 2012-07-18 | 广东绿园环境保护工程有限公司 | Active composite suspended filler |
| CN103951047A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of anaerobic ammonia oxidizing bacteria immobilized straight-tubular bioactive filler based on reticulate carrier |
| CN103951073A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of ammonia oxidizing bacteria immobilized star-shaped bioactive filler based on reticulate carrier |
| CN103951084A (en) * | 2014-04-04 | 2014-07-30 | 北京工业大学 | Preparation and application of immobilized straight-tubular bioactive filler based on reticulate carrier |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381790A (en) * | 2017-09-13 | 2017-11-24 | 北京工业大学 | Nano carbon fiber adhesive substrate water treatment filler based on 3-D solid structure |
| 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 |
| CN111453834A (en) * | 2020-04-07 | 2020-07-28 | 天津科信建设工程检测有限公司 | Preparation method of bioactive filler based on polypropylene foam material and bioactive filler prepared by same |
| CN111875036A (en) * | 2020-07-20 | 2020-11-03 | 大力(武汉)环保科技有限公司 | Sewage treatment filler loaded with biological membrane and application thereof |
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| Publication number | Publication date |
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| CN105923793B (en) | 2018-11-30 |
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