CN103755008A - Novel fluidized bed biofilm carrier - Google Patents
Novel fluidized bed biofilm carrier Download PDFInfo
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- CN103755008A CN103755008A CN201310728634.4A CN201310728634A CN103755008A CN 103755008 A CN103755008 A CN 103755008A CN 201310728634 A CN201310728634 A CN 201310728634A CN 103755008 A CN103755008 A CN 103755008A
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- circular cylinder
- hollow circular
- fluidized bed
- biofilm carrier
- bed biofilm
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Abstract
The invention discloses a novel fluidized bed biofilm carrier. The novel fluidized bed biofilm carrier comprises a hollow cylinder which is obliquely arranged, wherein the hollow cylinder is internally provided with a coaxial annular cylinder; the hollow cylinder and the annular cylinder are connected by rib walls; the rib walls are uniformly distributed by taking the circle center of the hollow cylinder as a central annular array; a cell chamber is enclosed by the adjacent rib walls, the hollow cylinder and the annular cylinder. The annular chamber is internally provided with cell chambers which are divided by the rib walls. The vertical inclined angle theta of the hollow cylinder is 10-30 degrees, preferably theta is 15 degrees. Saw teeth are arranged on the surface of the outer circumference of the hollow cylinder. According to the novel fluidized bed biofilm carrier, the cell chambers in the biofilm carrier are equivalent to a plurality of rooms so as to provide a large-area optimal environment for producing microorganisms; the inclined degree design is good for metabolism of the microorganisms and is good for growing and releasing the microorganisms.
Description
Technical field
The present invention relates to a kind of fluidized bed bio membrane carrier, especially relate to a kind of structure improve realize that specific surface area maximizes and biofilm after true density close to the novel fluidized bed biofilm carrier of water.
Background technology
At present, the power consumption of the similar technique of fluidized-bed mainly concentrates on aeration, the medium that common fluidized-bed adopts mostly is volcanics, gravel, natural zeolite, perlite, quartz sand, hard coal, gac, haydite etc., density is all greater than water, the power that its complete fluidisation is consumed is large, and post-processed, recycle more difficultly, cost is high.
Similar to a kind of method of Chinese patent CN102942284A, biological fluidized bed carrier and processing waste water, proposition is raw material to breeze, carry out art breading, make carrier there is irregular profile, coarse surface and larger specific surface area, although similar technique is improved medium, still do not break away from the defects such as difficult recycling, and after biofilm, proportion is greater than water, be deposited in water, make the carrier power that mobile sulfuration consumes in reactor larger.
For prior art above shortcomings, the present invention is proposed.
Summary of the invention
In view of problems of the prior art, the invention provides a kind of support density little, after carrying full microbial film, density is similar to 1, so the little novel fluidized bed biofilm carrier of the carrier power that mobile fluidisation consumes in reactor.
For achieving the above object, technical scheme provided by the invention is: a kind of novel fluidized bed biofilm carrier, the hollow circular cylinder that comprises an inclined design, there is coaxial circular cylinder the inside of hollow circular cylinder, hollow circular cylinder is connected by rib wall with circular cylinder, rib wall annular array centered by the center of circle of hollow circular cylinder is uniform, and adjacent rib wall and hollow circular cylinder and circular cylinder surround and be configured as lattice chamber.Circular cylinder inside has rib wall to cut apart the lattice chamber of shaping.Hollow circular cylinder fore-and-aft tilt angle θ is 10 °-30 °, and preferably θ is 15 °.The external peripheral surface of hollow circular cylinder is provided with sawtooth.
The present invention also provides another kind of technical scheme, be specially: a kind of novel fluidized bed biofilm carrier, the hollow circular cylinder that comprises an inclined design, hollow circular cylinder inside is cut apart cellular lattice chamber, the external peripheral surface of hollow circular cylinder is provided with sawtooth, hollow circular cylinder fore-and-aft tilt angle θ is 10 °-30 °, and preferably θ is 15 °.Cellular lattice chamber is irregular radial honeycomb structure.
The invention has the beneficial effects as follows: the lattice chamber of biofilm carrier of the present invention inside is equivalent to some " rooms ", the large-area optimum environment of microorganisms producing is provided; Gradient design is more conducive to the metabolism of microorganism, is more conducive to microbial growth and comes off.Concrete effect is as follows:
1, surfaceness is high, forms large specific surface area, and packing specific area is greater than 800 ㎡/m
3, reaction efficiency is high, and COD volumetric loading can reach 3-10kg/(m
3* d), microorganism colonization is quick;
2, surface polarity is controlled and is realized thin microbial film, biofilm thickness little (100 μ m-1mm), and catalytic activity is high, and mass transfer oxygen transfer rate is high, without stopping up;
3, contact with sewage fully, lifeless matter film is concentrated obscission, and excess sludge production is low, and aeration tank water outlet can direct filtration;
4, inorganic mineral strengthening is to the absorption of ammonia nitrogen and removal;
5, carrier can be arranged on anaerobic zone and oxygen-starved area, also can be alternately mobile in anoxic and aerobic zone, make the rich denitrogenation dephosphorizing bacterial classification of growth in it, and greatly improve treatment effect;
6, suspending carrier convenient filling, safeguards simple; When maintenance aerating system, carry out easily, by appropriate design, generally do not affect continuous operation;
7, the true density of filler, close to water, is 0.94--0.98g/cm before biofilm
3, after biofilm, approximate 1g/cm
3;
8, surfaceness is high, and microorganism growth amount is large, microbial film adhere firmly.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:
Fig. 1 is perspective view of the present invention;
Fig. 2 is the face structural representation of longitudinally deciding what is right and what is wrong of the present invention;
Fig. 3 is the face structural representation of laterally deciding what is right and what is wrong of the present invention;
Fig. 4 is another embodiment of the present invention perspective view;
Fig. 5 is the face of laterally the deciding what is right and what is wrong structural representation of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described.
Embodiment 1:
Fig. 1 is perspective view of the present invention, Fig. 2 is the face structural representation of longitudinally deciding what is right and what is wrong of the present invention, Fig. 3 is the face structural representation of laterally deciding what is right and what is wrong of the present invention, as shown in Figure 1, Figure 2, shown in Fig. 3, a kind of novel fluidized bed biofilm carrier of the present invention, the hollow circular cylinder 1 that comprises an inclined design, hollow circular cylinder 1 fore-and-aft tilt angle θ is 10 °-30 °, the θ in the present embodiment is 15 °.There is coaxial circular cylinder 2 inside of hollow circular cylinder 1, hollow circular cylinder 1 is connected by rib wall 3 with circular cylinder 2, rib wall 3 annular array centered by the center of circle of hollow circular cylinder 1 is uniform, and adjacent rib wall 3 surrounds and is configured as lattice chamber 4 with hollow circular cylinder 1 and circular cylinder 2.Circular cylinder 2 inside have rib wall to cut apart the lattice chamber 5 of shaping.The external peripheral surface of hollow circular cylinder 1 is provided with sawtooth 6.
Biofilm carrier specific surface area of the present invention is large, the biomass of its surface attachment is many, food chain length, is beneficial to the enrichment and growth of long nitration denitrification bacterium of cycle in epoch, and sludge concentration is high, mud is long age, system arranges flexibly, can be arranged to front end, rear end or synchronous nitration and denitrification, makes system dephosphorization and denitrification effect good, sludge creation amount is little, has the flow process of the heterogeneous mobile biofilm carrier bed process of many application even there is no sludge refluxing apparatus; Support density is little, and after carrying full microbial film, density is similar to 1, so the carrier power that mobile fluidisation consumes in reactor is little.
Adopt the characteristic present of carrier of the present invention of said structure as following table:
| Material | PE modified |
| True density (kg/m 3） | 940-980 |
| Tap density (kg/m 3） | 110 |
| Compressive property (m) | 2.5 |
| COD volumetric loading (kg/m 3d） | 5～10 |
| Work-ing life (year) | 30 |
Embodiment 2:
The invention provides another one embodiment, Fig. 4 is another embodiment of the present invention perspective view; Fig. 5 is the face of laterally the deciding what is right and what is wrong structural representation of Fig. 4.Concrete scheme is: a kind of novel fluidized bed biofilm carrier, the hollow circular cylinder 1 that comprises an inclined design, hollow circular cylinder 1 fore-and-aft tilt angle θ is 10 °-30 °, the present embodiment θ is 10 °, hollow circular cylinder 1 inside is cut apart cellular lattice chamber 7, and the external peripheral surface of hollow circular cylinder is provided with sawtooth 6.
Wherein, cellular lattice chamber 7 also can be designed to irregular radial honeycomb structure, and the present embodiment no longer accompanying drawing repeats.
In the present embodiment, outside is cut off face and is radiation laciniation, and under same load condition, gas, solid (matrix), liquid three-phase mass transfer transmission effect are good, and gas-water ratio can be saved greatly, and unit volume BOD loading, clearance strengthen greatly, so HRT can shorten; Carrier inside is cut apart and is cellular or irregular honeycomb radial structure, and accumulation porosity is good, and specific surface area is relatively large, is more conducive to attached growth of microorganisms enrichment, reaches the fixedly optimum handling effect of unit volume treatment unit
The above embodiment; being preferred embodiment of the present invention, is not to limit the scope of the present invention, therefore all according to the apparent change described in the present patent application the scope of the claims; and other does not depart from the change of essence of the present invention, within all should being included in protection scope of the present invention.
Claims (5)
1. a novel fluidized bed biofilm carrier, it is characterized in that, the hollow circular cylinder that comprises an inclined design, there is coaxial circular cylinder the inside of hollow circular cylinder, hollow circular cylinder is connected by rib wall with circular cylinder, rib wall annular array centered by the center of circle of hollow circular cylinder is uniform, and adjacent rib wall and hollow circular cylinder and circular cylinder surround and be configured as lattice chamber; Wherein, hollow circular cylinder fore-and-aft tilt angle θ is 10 °-30 °, and circular cylinder inside has rib wall to cut apart the lattice chamber of shaping, and the external peripheral surface of hollow circular cylinder is provided with sawtooth.
2. a kind of novel fluidized bed biofilm carrier according to claim 3, is characterized in that, described hollow circular cylinder fore-and-aft tilt angle θ is 15 °.
3. a novel fluidized bed biofilm carrier, it is characterized in that, comprise the hollow circular cylinder of an inclined design, hollow circular cylinder inside is cut apart cellular lattice chamber, the external peripheral surface of hollow circular cylinder is provided with sawtooth, and hollow circular cylinder fore-and-aft tilt angle θ is 10 °-30 °.
4. a kind of novel fluidized bed biofilm carrier according to claim 3, is characterized in that, described cellular lattice chamber is irregular radial honeycomb structure.
5. a kind of novel fluidized bed biofilm carrier according to claim 3, is characterized in that, described hollow circular cylinder fore-and-aft tilt angle θ is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728634.4A CN103755008B (en) | 2013-12-25 | 2013-12-25 | A kind of novel fluidized bed biofilm carrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310728634.4A CN103755008B (en) | 2013-12-25 | 2013-12-25 | A kind of novel fluidized bed biofilm carrier |
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| CN103755008A true CN103755008A (en) | 2014-04-30 |
| CN103755008B CN103755008B (en) | 2016-02-17 |
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|---|---|---|---|
| CN201310728634.4A Expired - Fee Related CN103755008B (en) | 2013-12-25 | 2013-12-25 | A kind of novel fluidized bed biofilm carrier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3338885A1 (en) * | 2016-12-23 | 2018-06-27 | Fundacion Gaiker | Carrier device |
Citations (9)
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|---|---|---|---|---|
| JP2001300571A (en) * | 2000-04-24 | 2001-10-30 | Nippon Device Kogyo Kk | Filter medium for fluidized bed in water treating apparatus |
| CN2700317Y (en) * | 2003-11-22 | 2005-05-18 | 于春荣 | Modified suspended filling material |
| CN201288086Y (en) * | 2008-11-12 | 2009-08-12 | 四川华威环保科技有限公司 | Biological stuffing for water and sewage treatment |
| EP2119499A1 (en) * | 2008-04-28 | 2009-11-18 | Dytras, S.A. | Biofilm carrier used in waste water purification |
| CN201433136Y (en) * | 2009-07-15 | 2010-03-31 | 四川华威环保科技有限公司 | Biological membrane carrier for water and sewage treatment |
| CN201923874U (en) * | 2010-12-30 | 2011-08-10 | 青岛思普润水处理有限公司 | Novel biological filler |
| CN201942564U (en) * | 2011-01-10 | 2011-08-24 | 宜兴市绿岛水处理设备有限公司 | Reinforced-type biological filler |
| CN203333371U (en) * | 2013-05-13 | 2013-12-11 | 石家庄海力精化有限责任公司 | Moving bed filling material |
| CN203683199U (en) * | 2013-12-25 | 2014-07-02 | 北京鑫大禹环保工程有限责任公司 | Novel fluidized bed biofilm carrier |
-
2013
- 2013-12-25 CN CN201310728634.4A patent/CN103755008B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001300571A (en) * | 2000-04-24 | 2001-10-30 | Nippon Device Kogyo Kk | Filter medium for fluidized bed in water treating apparatus |
| CN2700317Y (en) * | 2003-11-22 | 2005-05-18 | 于春荣 | Modified suspended filling material |
| EP2119499A1 (en) * | 2008-04-28 | 2009-11-18 | Dytras, S.A. | Biofilm carrier used in waste water purification |
| CN201288086Y (en) * | 2008-11-12 | 2009-08-12 | 四川华威环保科技有限公司 | Biological stuffing for water and sewage treatment |
| CN201433136Y (en) * | 2009-07-15 | 2010-03-31 | 四川华威环保科技有限公司 | Biological membrane carrier for water and sewage treatment |
| CN201923874U (en) * | 2010-12-30 | 2011-08-10 | 青岛思普润水处理有限公司 | Novel biological filler |
| CN201942564U (en) * | 2011-01-10 | 2011-08-24 | 宜兴市绿岛水处理设备有限公司 | Reinforced-type biological filler |
| CN203333371U (en) * | 2013-05-13 | 2013-12-11 | 石家庄海力精化有限责任公司 | Moving bed filling material |
| CN203683199U (en) * | 2013-12-25 | 2014-07-02 | 北京鑫大禹环保工程有限责任公司 | Novel fluidized bed biofilm carrier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3338885A1 (en) * | 2016-12-23 | 2018-06-27 | Fundacion Gaiker | Carrier device |
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| CN103755008B (en) | 2016-02-17 |
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Inventor after: Lv Haijiang Inventor after: Chen Si Inventor after: Gao Zhaohui Inventor after: Li Bi Inventor after: Deng Yunhan Inventor after: Liu Bingxuan Inventor before: Lv Haijiang Inventor before: Chen Si Inventor before: Gao Zhaohui Inventor before: Li Bi |
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Address after: 101309 Beijing City, Shunyi District Yang Zhen Fu Qian Jie North 110 meters Patentee after: Beijing Shunxin Green Environmental Engineering Co., Ltd. Address before: 101300 Beijing city Shunyi District Shunping Line No. 188 Patentee before: BEIJING XINDAYU ENVIRONMENTAL PROTECTION ENGINEERING CO., LTD. |
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Granted publication date: 20160217 Termination date: 20191225 |