CN103755008B - A kind of novel fluidized bed biofilm carrier - Google Patents
A kind of novel fluidized bed biofilm carrier Download PDFInfo
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- CN103755008B CN103755008B CN201310728634.4A CN201310728634A CN103755008B CN 103755008 B CN103755008 B CN 103755008B CN 201310728634 A CN201310728634 A CN 201310728634A CN 103755008 B CN103755008 B CN 103755008B
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- circular cylinder
- hollow circular
- biofilm carrier
- fluidized bed
- rib wall
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Abstract
The invention discloses a kind of novel fluidized bed biofilm carrier, comprise the hollow circular cylinder of 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 room.Circular cylinder inside has rib wall to split the lattice room be shaped.Hollow circular cylinder longitudinal inclination θ is 10 °-30 °, and preferred θ is 15 °.The external peripheral surface of hollow circular cylinder is provided with sawtooth.The lattice room of biofilm carrier inside of the present invention is equivalent in some " room ", provides the large-area optimum environment of microorganisms producing; Gradient design is more conducive to the metabolism of microorganism, is more conducive to microbial growth and comes off.
Description
Technical field
The present invention relates to a kind of fluidized bed bio membrane carrier, especially relate to a kind of structure carry out improving realize specific surface area maximize and after biofilm true density close to the novel fluidized bed biofilm carrier of water.
Background technology
At present, the power consumption of the technique that fluidized-bed is similar mainly concentrates on aeration, the medium that ordinary 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 difficult, cost is high.
The similar a kind of method as Chinese patent CN102942284A, biological fluidized bed carrier and process waste water, proposing breeze is raw material, carry out art breading, carrier is made to have 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 not easily 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, the novel fluidized bed biofilm carrier that therefore the carrier power that mobile fluidisation consumes in reactor is little.
For achieving the above object, technical scheme provided by the invention is: a kind of novel fluidized bed biofilm carrier, comprise the hollow circular cylinder of 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 room.Circular cylinder inside has rib wall to split the lattice room be shaped.Hollow circular cylinder longitudinal inclination θ is 10 °-30 °, and preferred θ is 15 °.The external peripheral surface of hollow circular cylinder is provided with sawtooth.
Present invention also offers another kind of technical scheme, be specially: a kind of novel fluidized bed biofilm carrier, comprise the hollow circular cylinder of an inclined design, hollow circular cylinder inside division has cellular lattice room, the external peripheral surface of hollow circular cylinder is provided with sawtooth, hollow circular cylinder longitudinal inclination θ is 10 °-30 °, and preferred θ is 15 °.Cellular lattice room is irregular radial honeycomb structure.
The invention has the beneficial effects as follows: the lattice room of biofilm carrier inside of the present invention is equivalent in some " room ", 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, the microbial film that surface polarity control realization is thin, biofilm thickness little (100 μm-1mm), catalytic activity is high, and mass transfer oxygen transfer rate is high, without blocking;
3, abundant with waste water, lifeless matter film concentrates 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 alternately can move in anoxic and aerobic zone, make the denitrogenation dephosphorizing bacterial classification that in it, growth is rich, greatly improve treatment effect;
6, suspending carrier convenient filling, safeguards simple; Carrying out easily when keeping in repair aerating system, by appropriate design, generally not affecting continuous operation;
7, the true density of filler is 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 referring to detailed description below, more completely can understand the present invention better and easily learn wherein many adjoint advantages, 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, 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 that longitudinal direction of the present invention is decided what is right and what is wrong face structural representation;
Fig. 3 is that transverse direction of the present invention is decided what is right and what is wrong face structural representation;
Fig. 4 is another embodiment of the present invention perspective view;
Fig. 5 is that the transverse direction of Fig. 4 is decided what is right and what is wrong face structural representation.
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 that longitudinal direction of the present invention is decided what is right and what is wrong face structural representation, Fig. 3 is that transverse direction of the present invention is decided what is right and what is wrong face structural representation, as shown in Figure 1, Figure 2, shown in Fig. 3, a kind of novel fluidized bed biofilm carrier of the present invention, comprise the hollow circular cylinder 1 of an inclined design, hollow circular cylinder 1 longitudinal inclination θ is 10 °-30 °, and 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 with hollow circular cylinder 1 and circular cylinder 2 and is configured as lattice room 4.Circular cylinder 2 inside has rib wall to split the lattice room 5 be shaped.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, be beneficial to the enrichment and growth of the nitration denitrification bacterium of cycle in epoch length, sludge concentration is high, mud is long for age, Operation system setting is flexible, can be arranged to front end, rear end or synchronous nitration and denitrification, make system dephosphorization and denitrification effect good, mud generation is little, has the flow process of the heterogeneous mobile biofilm carrier bed process of many application even not have sludge refluxing apparatus; Support density is little, and after carrying full microbial film, density is similar to 1, and therefore the carrier power that mobile fluidisation consumes in reactor is little.
Adopt the characteristic present of the 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 that the transverse direction of Fig. 4 is decided what is right and what is wrong face structural representation.Concrete scheme is: a kind of novel fluidized bed biofilm carrier, comprise the hollow circular cylinder 1 of an inclined design, hollow circular cylinder 1 longitudinal inclination θ is 10 °-30 °, the present embodiment θ is 10 °, hollow circular cylinder 1 inside division has cellular lattice room 7, and the external peripheral surface of hollow circular cylinder is provided with sawtooth 6.
Wherein, cellular lattice room 7 also can be designed to irregular radial honeycomb structure, and the present embodiment no longer accompanying drawing repeats.
In the present embodiment, face is cut off in radiation laciniation in outside, 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, and therefore HRT can shorten; Carrier inside segmentation is in 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 optimum handling effect of fixing unit volume treatment unit
The above embodiment; just preferred embodiment of the present invention is not limit the scope of the present invention, therefore all according to the apparent variation 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, all should be included within protection scope of the present invention.
Claims (4)
1. a novel fluidized bed biofilm carrier, it is characterized in that, comprise the hollow circular cylinder of 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 room; Wherein, hollow circular cylinder longitudinal inclination θ is 10 °-30 °, and circular cylinder inside has rib wall to split the lattice room be shaped, and the external peripheral surface of hollow circular cylinder is provided with sawtooth; The true density of biofilm carrier filler, close to water, is 0.94--0.98g/cm before biofilm
3.
2. the novel fluidized bed biofilm carrier of one according to claim 1, is characterized in that, described hollow circular cylinder longitudinal inclination 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 division has cellular lattice room, the external peripheral surface of hollow circular cylinder is provided with sawtooth, and hollow circular cylinder longitudinal inclination θ is 10 °-30 °; Described cellular lattice room is irregular radial honeycomb structure; The true density of biofilm carrier filler, close to water, is 0.94--0.98g/cm before biofilm
3.
4. the novel fluidized bed biofilm carrier of one according to claim 3, is characterized in that, described hollow circular cylinder longitudinal inclination 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 |
Applications Claiming Priority (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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| Publication Number | Publication Date |
|---|---|
| CN103755008A CN103755008A (en) | 2014-04-30 |
| CN103755008B true 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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Families Citing this family (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 |
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| CN103755008A (en) | 2014-04-30 |
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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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