CN103951071A - Preparation and application of immobilized fixed-type bioactive fillers based on reticulate carriers - Google Patents
Preparation and application of immobilized fixed-type bioactive fillers based on reticulate carriers Download PDFInfo
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- CN103951071A CN103951071A CN201410137052.3A CN201410137052A CN103951071A CN 103951071 A CN103951071 A CN 103951071A CN 201410137052 A CN201410137052 A CN 201410137052A CN 103951071 A CN103951071 A CN 103951071A
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- carrier
- embedding
- mesh carrier
- reticulate
- sheet shape
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- 239000000945 filler Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000969 carrier Substances 0.000 title abstract description 3
- 230000000975 bioactive effect Effects 0.000 title abstract 5
- 239000000463 material Substances 0.000 claims abstract description 30
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 14
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 14
- 241000894006 Bacteria Species 0.000 claims abstract description 12
- -1 polyethylene Polymers 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004698 Polyethylene Substances 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims abstract description 5
- 239000004327 boric acid Substances 0.000 claims abstract description 5
- 229920000573 polyethylene Polymers 0.000 claims abstract description 5
- 229920001155 polypropylene Polymers 0.000 claims abstract description 5
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 238000007731 hot pressing Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- FRXSZNDVFUDTIR-UHFFFAOYSA-N 6-methoxy-1,2,3,4-tetrahydroquinoline Chemical compound N1CCCC2=CC(OC)=CC=C21 FRXSZNDVFUDTIR-UHFFFAOYSA-N 0.000 claims description 2
- 239000012943 hotmelt Substances 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 241000108664 Nitrobacteria Species 0.000 description 8
- 244000005700 microbiome Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229920001525 carrageenan Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012050 conventional carrier Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses preparation and an application of immobilized fixed-type bioactive fillers based on reticulate carriers, and belongs to the technical field of water treatment. Each fixed-type bioactive filler comprises two parts: an embedding body and the carrier; the carrier is a rectangular reticulate sheet-shaped carrier formed by taking polyethylene or polypropylene and the like as a main material, adding polyvinyl alcohol or other hydrophilic materials and carrying out hot melting or plate hot pressing; with a reticulate structure of the carrier, the embedding body can be allowed to penetrate through meshes to form a riveting fixing structure together with the carrier so as to increase the filler overall stability; an embedding liquid is formed by mixing a bacteria concentrated solution and a polyvinyl alcohol solution; the reticulate carrier is evenly coated with the embedding liquid, and the embedding body is formed after boric acid secondary cross-linking of the embedding liquid and is combined with the reticulate carrier to obtain the bioactive filler. The prepared immobilized fixed-type bioactive fillers not only solve the problems that bacteria are difficult in advantage establishment, easy to lose and the like, but also improve the processing ability of a reactor, shorten the start-up time, and have broad application prospects.
Description
Technical field
The invention belongs to water treatment field, particularly a kind of immobilization fixed type biological active filler preparation and application based on mesh carrier.
Background technology
Microorganism cells immobilization technology can increase substantially microorganism concn, making microorganism be difficult for loss, shortening reactor start-up time, toxin immunity and acid and alkali-resistance, salt resistance ability obviously strengthens, the ecological dominance of energy purifying and creation characteristic bacterium, produce characteristic highly effective reaction, have a good application prospect.The process for fixation that microorganism cells is conventional has absorption method, crosslinking and entrapping method.Wherein, the most conventional with entrapping method, the material that has been successfully used to microorganism cells embedding has: polyvinyl alcohol, agar, K-carrageenin, gelatin, sodium alginate, polyacrylamide, urethane etc.That above-mentioned embedded material has is good to microorganism nontoxicity, mass-transfer performance, be difficult for by biological decomposition, stable in properties, the feature such as physical strength is high, the life-span is long, price is low.
At present, traditional bacterium embedding method is that bacterium and embedded material are combined, and forms embedding body, such as microballoon, embedded block etc.This method is simple to operate, but limitation is large, cannot ideal application in the middle of engineering reality.We,, through research for many years, improve on traditional embedding method, and embedding body and carrier are combined, and form whole biological active filling material.Due to the combination of embedding body and carrier, make biological active filling material there is more performance, it has inherited all advantages of original simple bacterium and embedded material; Because the application of solid support material makes biological active filling material have the characteristic that various carriers have, large such as specific surface area, be difficult for the advantages such as obstruction.Experimental study shows, utilizing the conventional carriers such as existing Raschig ring, Pall ring, cascade ring, suspension modified filler and embedding body to combine by adhesion mode the biological active filling material making all exists resistance to overturning poor, embedding body easily comes off, and causes the problems such as bacterium loss.
For the problems referred to above, the immobilized biological activated filler that it is good that we develop a kind of resistance to overturning is with a wide range of applications.
Summary of the invention
The object of the invention is to develop a kind of immobilization fixed type biological active filler based on mesh carrier, the reticulated structure design of this biological active filling material carrier, make embedding body form whole rivet clasp structure by mesh and carrier, embedding body difficult drop-off, and embedding physical efficiency forms millimetre-sized membrane structure on reticulated structure, make the biological active filling material resistance to overturning that makes good, whole permeability is good, and mass transfer effect is higher.In addition, biological active filling material is fixed in reactor by skeleton construction supporter, and filler can not run off with current, and treatment effect is stable.
In order to realize above-mentioned state, the present invention has adopted following technical scheme.
A kind of immobilization fixed type biological active filler based on mesh carrier, it is characterized in that: the embedding body embedding of the involved thalline of sheet shape mesh carrier of immobilization fixed type biological active filler, the twine of sheet shape mesh carrier is cross-linked to form whole rivet clasp structure by the embedding body of mycetome by mesh and carrier.The string diameter 0.5-2mm of preferred mesh.Embedding body forms millimetre-sized membrane structure on sheet shape mesh carrier.
Described shape mesh carrier, length and width are 0.1-3m, and the mesh of described mesh carrier can be circle, rhombus, square, rectangle.
The preparation method of above-mentioned a kind of immobilization fixed type biological active filler based on mesh carrier, is characterized in that, comprises following steps:
Take polyethylene, polyvinyl chloride, polypropylene, ABS resin macromolecular material as main, add appropriate hydrophilizing agent PVA, by strand hot melt or sheet material hot pressing pore-forming mode, make sheet shape mesh carrier; According to polyvinyl alcohol-boric acid secondary crosslinking method, the embedding liquid that bacterium concentrated solution and polyvinyl alcohol solution are mixed to form is uniformly coated on sheet shape mesh carrier, puts into after saturated boric acid solution 1-3h, regulates boric acid solution pH to 8-10, is cross-linked 3-24h., taken out, clean remained on surface material, obtain sheet shape biological active filling material.
Some immobilization fixed type biological active fillers based on sheet shape mesh carrier described above are fixed in reactor by skeleton construction supporter, can carry out ammonia nitrogen waste water processing.
The addition of polyvinyl alcohol (PVA) can suitably be adjusted as required, and this is prior art, and the quality percentage composition of preferably polyethylene alcohol (PVA) is 5-10%.
The beneficial effect of the immobilization fixed type biological active filler based on mesh carrier of the present invention is mainly reflected in:
1. cancellated design, makes embedding body form whole rivet clasp structure by mesh, and embedding body difficult drop-off makes the biological active filling material resistance to overturning that makes good, and bacterium is difficult for running off;
2. immobilized biological activated filler bag bacterium amount is large, can set up flora advantage, and processing efficiency is high;
3. mesh carrier is main raw by polyethylene, polyvinyl chloride, polypropylene, ABS resin, has added hydrophilizing agent PVA, has improved the wetting ability of carrier, has increased the intensity of carrier and embedding body bonding, has improved the stability of filler integral body;
4. when biological active filling material makes embedding body can implementation structure thickness less due to the existence of mesh skeleton structure, do not lose again the variability of one-piece construction to water treatment running environment, less thickness can be realized higher mass-transfer efficiency and the higher utilization ratio of embedding body, if make thickness like this with embedding body self material, cannot in water technology processing unit, realize good carrier performance;
5. the surface-area of biological active filling material is all useful area, has avoided the waste of material.
Accompanying drawing explanation
Fig. 1 is sheet shape biological active filling material schematic diagram;
Fig. 2 is Fig. 1 I-I diagrammatic cross-section;
Fig. 3 is Fig. 1 II-II diagrammatic cross-section;
Fig. 4 is fixed type biological active filler schematic diagram.
1. twines in figure, 2. embedding body, 3. skeleton construction supporter
Embodiment
Below in conjunction with case study on implementation, the present invention is more specifically described, but embodiments of the present invention are not limited to this.
Example 1
1. the preparation of a shape mesh carrier
Take polypropylene high molecular polymer as main raw, add hydrophilizing agent PVA(mass content 5%), system is grown into 0.8m, and wide is the sheet shape mesh carrier of 0.15m, and its mesh is shaped as square, mesh wire diameter 0.8mm.
2. the processing of nitrobacteria
Take municipal wastewater treatment plant second pond excess sludge as bacterium source, and the nitrobacteria bacteria suspension centrifugal concentrating by after screening enrichment culture, obtains 3.5 * 10
9the nitrobacteria concentrated solution of individual/mL.
3. embedding liquid obtains
Weighing polyvinyl alcohol 5kg, add 40L ultrapure water post-heating to 90 ℃ to dissolve 15min, after stirring, taking-up reheats to 90 ℃ of dissolving 5min, after taking-up, stir and be cooled to 30 ℃, 40L polyvinyl alcohol solution and the 10L nitrobacteria concentrated solution preparing are mixed, and add 1kg calcium carbonate, after stirring, make 50L embedding liquid.
4. the combination of embedding liquid and mesh carrier
Embedding body is uniformly coated on to mesh carrier surface, guarantees that mesh carrier surface is all covered evenly by embedding body.
5. the preparation of nitrobacteria fixed type biological active filler
The mesh carrier of smearing embedding body in step (4) is put into saturated boric acid solution, make it in submerged condition, standing 3h, regulator solution pH to 9.0 left and right, standing 4h completes immobilization, cleans, and obtains nitrobacteria biological active filling material.
6. the application of nitrobacteria fixed type biological active filler
9 nitrobacteria biological active filling materials are placed in to A ripe in laboratory by skeleton construction supporter
2in the Aerobic Pond of O reactor, Aerobic Pond volume is 1m
3, suspension spacing is 10cm, 20 ± 2 ℃ of water temperatures, HRT=2h, dissolved oxygen be 2.0 ?4.0mg/L, influent quality is city domestic sewage (NH
4 +?N concentration be 40 ?70mg/L), measure the nitrification ability of Aerobic Pond on time, detected result shows, reactor returns to 97.5% of nitrification activity before embedding, NH after cultivating 1 week
4 +?N concentration below 3mg/L, clearance is all more than 92.5%, after operation 30d, nitrification efficiency is substantially constant, move after 1 year still without embedding body obscission, Nitrification is stablized.
Claims (4)
1. the immobilization fixed type biological active filler based on mesh carrier, it is characterized in that: the active filler of immobilization fixed type biological is mainly comprised of sheet shape mesh carrier and the embedding body that comprises thalline, the active filler of immobilization fixed type biological is fixed by skeleton construction supporter, the twine of sheet shape mesh carrier is formed whole rivet clasp structure by embedding body by mesh and carrier, the string diameter 0.5-2mm of twine, embedding body forms millimetre-sized membrane structure on sheet shape mesh carrier.
2. a kind of immobilization fixed type biological active filler based on mesh carrier of claim 1, is characterized in that: sheet shape mesh carrier, and length and width are 0.1-3m, and the mesh of described mesh carrier is circle, rhombus, square or rectangle.
3. prepare the method for a kind of immobilization fixed type biological active filler based on mesh carrier of claim 1 or 2, it is characterized in that, comprise the following steps: take polyethylene, polyvinyl chloride, polypropylene or ABS resin macromolecular material as main, add appropriate hydrophilizing agent PVA, by strand hot melt or sheet material hot pressing pore-forming mode, make cancellated rectangle net slice shape carrier; According to polyvinyl alcohol-boric acid secondary crosslinking method, the embedding liquid that bacterium concentrated solution and polyvinyl alcohol solution are mixed to form is uniformly coated on sheet shape mesh carrier surface, puts into after saturated boric acid solution 1-3h, regulates boric acid solution pH to 8-10, is cross-linked 3-24h., taken out, clean remained on surface material, obtain sheet shape biological active filling material.
4. claim 1 or a plurality of immobilization fixed type biological active fillers based on sheet shape mesh carrier of 2 are fixed in skeleton construction supporter, for water treatment abreast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410137052.3A CN103951071B (en) | 2014-04-04 | 2014-04-04 | A kind of immobilization fixed type biological active filler preparations and applicatio based on mesh carrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410137052.3A CN103951071B (en) | 2014-04-04 | 2014-04-04 | A kind of immobilization fixed type biological active filler preparations and applicatio based on mesh carrier |
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| CN103951071A true CN103951071A (en) | 2014-07-30 |
| CN103951071B CN103951071B (en) | 2016-06-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707566A (en) * | 2015-02-17 | 2015-06-17 | 中国海洋大学 | Charcoal sphere as well as preparation method and application thereof |
| CN111470615A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of sulfate-reducing-reinforced composite bacteria embedded bioactive filler |
| CN111470614A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of high-accumulation-rate short-cut nitrifying composite bacteria embedded bioactive filler |
| CN111484123A (en) * | 2020-05-06 | 2020-08-04 | 北京工业大学 | Efficient nitrifying embedded bioactive filler and preparation method thereof |
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| JPH0699186A (en) * | 1992-09-18 | 1994-04-12 | Ngk Insulators Ltd | Production of carrier for immobilization |
| CN101746881A (en) * | 2009-12-11 | 2010-06-23 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Honeycomb network pipe bio-carrier |
| CN103194437A (en) * | 2013-04-12 | 2013-07-10 | 北京工业大学 | Method for finishing bacterium fixation by utilizing polyvinyl alcohol-borate secondary crosslinking |
| CN103193315A (en) * | 2013-04-12 | 2013-07-10 | 北京工业大学 | Method for preparing bioactive filler through immobilization of anaerobic ammonia oxidizing bacterium |
| 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 |
-
2014
- 2014-04-04 CN CN201410137052.3A patent/CN103951071B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0699186A (en) * | 1992-09-18 | 1994-04-12 | Ngk Insulators Ltd | Production of carrier for immobilization |
| CN101746881A (en) * | 2009-12-11 | 2010-06-23 | 哈尔滨工业大学水资源国家工程研究中心有限公司 | Honeycomb network pipe bio-carrier |
| 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 |
| CN103194437A (en) * | 2013-04-12 | 2013-07-10 | 北京工业大学 | Method for finishing bacterium fixation by utilizing polyvinyl alcohol-borate secondary crosslinking |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707566A (en) * | 2015-02-17 | 2015-06-17 | 中国海洋大学 | Charcoal sphere as well as preparation method and application thereof |
| CN111470615A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of sulfate-reducing-reinforced composite bacteria embedded bioactive filler |
| CN111470614A (en) * | 2020-05-06 | 2020-07-31 | 北京工业大学 | Preparation and application of high-accumulation-rate short-cut nitrifying composite bacteria embedded bioactive filler |
| CN111484123A (en) * | 2020-05-06 | 2020-08-04 | 北京工业大学 | Efficient nitrifying embedded bioactive filler and preparation method thereof |
| CN111470615B (en) * | 2020-05-06 | 2022-03-29 | 北京工业大学 | Preparation and application of sulfate-reducing-reinforced composite bacteria embedded bioactive filler |
| CN111470614B (en) * | 2020-05-06 | 2022-03-29 | 北京工业大学 | Preparation and application of high-accumulation-rate short-cut nitrifying composite bacteria embedded bioactive filler |
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| CN103951071B (en) | 2016-06-01 |
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