CN202594844U

CN202594844U - Biofilm carrier

Info

Publication number: CN202594844U
Application number: CN2012201590801U
Authority: CN
Inventors: 桑军强; 高峰
Original assignee: Sinopec Research Institute of Petroleum Processing; China Petroleum and Chemical Corp
Current assignee: Sinopec Research Institute of Petroleum Processing; China Petroleum and Chemical Corp
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2012-12-12
Anticipated expiration: 2022-04-13

Abstract

The utility model discloses a biofilm carrier. The biofilm carrier is a cylindrical object formed by connecting a plurality of regular prisms (1), wherein adjacent regular prisms are connected together through side walls; the height of the cylindrical object is H; and the outer diameter of an external cylindrical surface is D. According to the technical scheme, the biofilm carrier is the cylindrical object formed by connecting the regular prisms. Through the structure, the biofilm carrier has ideal porosity, ventilation property and water flow property, the specific surface area of the biofilm carrier is increased, the microorganism loading quantity of unit volume carriers is increased, the volume load of a biological reaction pond is increased, different adhesion space can be provided for microorganisms of different populations for forming different biochemical reaction functional zones, and the adaptability of the biofilm carrier to water impact is increased.

Description

A kind of biofilm carrier

Technical field

The utility model relates to a kind of biofilm carrier, particularly, relates to a kind of biofilm carrier that is used for wastewater treatment.

Background technology

Biological contact oxidation process is a kind of biological effluent treatment that derives from from biomembrance process; It is the biologic treating technique between activated sludge process and biological filter; The i.e. biofilm carrier of filling some amount in biological contact oxidation pond utilizes the microbial film be grown on the carrier and the oxygen of ample supply, through biological oxidation; With the pollutants in waste water oxygenolysis, reach the purification of waste water purpose.Biological contact oxidation process has the advantage of activated sludge process and biomembrance process concurrently; Energy-efficient, characteristics such as floor space is little, anti impulsion load, operational management convenience that this technology has; Since occurring, obtain more and more investigators' attention, be widely used in the Sewage treatment systems of all trades and professions at present.

The place that biofilm carrier is rely and perched as mikrobe is the core of biological contact oxidation process, and its performance quality is directly determining the treatment effect and the returns of investment of technology.Usually; The suspending carrier density that biological contact oxidation process uses approaches water, directly place during use and biological contact oxidation pond in, mikrobe grows at carrier surface; Form the complicated microbial film of one deck; Carrier is fixing when aeration perhaps suspends in water, and film, liquid, gas three-phase is fully contacted, thereby make pollution substance degrade fast.

The biofilm carrier shape of biological contact oxidation process is generally ring-type or three-dimensional sphere etc., regular shape, and voidage is big, and specific surface area does not wait to several thousand from hundreds of.Carrier adopts plastics such as polyolefins (like Vilaterm, Vestolen PP 7052) and material modified, SE thereof and material modified, polyurethane foam thereof to process more.At present, bio-carrier mainly contains fixed carrier, suspension type carrier (soft, medium-soft property, built-up type carrier), suspending carrier and new bio carrier etc.But in practical application, these carriers exist not enough aspect the tightness of hanging film speed, extension film amount and film and carrier.

The utility model content

The purpose of the utility model provides a kind of biofilm carrier, and this this biofilm carrier has bigger specific surface area and good carrier surface forming biofilm property.

To achieve these goals; The utility model provides a kind of biofilm carrier, and wherein, this biofilm carrier is for to interconnect the column that constitutes by a plurality of regular prisms; The a plurality of regular prisms of wherein adjacent this link together through sidewall, and the height of this column is that the diameter of H and circumscribed circle cylinder is D.

Preferably, a plurality of said regular prisms are positive six prisms that size equates.

Preferably, a plurality of said regular prisms link together about the medullary ray of the circumscribed circle cylinder of said column symmetrically.

Preferably, the top of said column and/or middle part and/or bottom outside are with annulus.

Preferably, the height of said annulus is 2mm-10mm, and thickness is 0.2mm-2mm.

Preferably, the sidewall of said regular prism is processed as corrugated surface.

Preferably, the sidewall of said regular prism is a smooth surface, and the surface except that the outside surface of said column is provided with projection.

Preferably, the thickness of the sidewall of said regular prism is 0.05mm-3mm.

Preferably, H/D is 0.1-3.

Preferably, the proportion of said biofilm carrier is 0.90-0.99.

Through technique scheme, the biofilm carrier of the utility model is for to interconnect the column that constitutes by a plurality of regular prisms.Pass through said structure; Make this biofilm carrier have ideal voidage, venting capability and mistake water-based ability, and increased the specific surface area of this biofilm carrier, strengthened the load of microorganisms amount of unit volume carrier; Improved the volumetric loading of biological reaction tank; The different spaces of adhering to can also be provided for the mikrobe of different population, form different biochemical reaction functional zone, improve the adaptive faculty of biofilm carrier water slug.

Other feature and advantage of the utility model will partly specify in embodiment subsequently.

Description of drawings

Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification sheets, is used to explain the utility model with following embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:

Fig. 1 is the side-view of the biofilm carrier of the utility model;

Fig. 2 is the vertical view of the biofilm carrier of the utility model.

Description of reference numerals

1 regular prism, 2 annulus

Embodiment

Be elaborated below in conjunction with the embodiment of accompanying drawing to the utility model.Should be understood that embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.

In the utility model; Do not doing under the situation of opposite explanation; The noun of locality that uses is normally indicated the direction shown in the Figure of description like " upper and lower, left and right ", and it is inside and outside that " inside and outside " typically refers to the spatial that the cylindrical surface of the biofilm carrier of the utility model encloses.

The utility model provides a kind of biofilm carrier; Wherein, This biofilm carrier is for to interconnect the column that constitutes by a plurality of regular prisms 1, and a plurality of regular prisms of wherein adjacent this link together through sidewall, and the height of this column is that the diameter of H and circumscribed circle cylinder is D.

The biofilm carrier of the utility model is interconnected through sidewall by a plurality of regular prism 1 and constitutes; Visible in the sectional view of preferred implementation as shown in Figure 2; This regular prism 1 is positive six prisms, because positive six prismatical interior angles are 120 °, so each positive six prisms are when interconnecting; Three positive six prisms just in time can be total to the summit at the place, summit at angle, at this moment interconnective sidewall copline.The sidewall that passes through here links together; Two sidewalls that both can refer to two regular prisms interconnect; Also can refer to altogether sidewall of two regular prisms, can also refer between the sidewall of two regular prisms that the utility model does not limit this through situation such as web member connections.

Except preferred implementation shown in the drawings; The regular prism 1 of the utility model also can consider to adopt other regular prism; For example this interior angle such as regular triangular prism or four-prism can be divided exactly 360 ° regular prism 1; Interconnective like this sidewall just can copline, just two sidewalls through two regular prisms interconnect or two regular prisms altogether the mode of sidewalls interconnect, also can adopt other interior angles can not divide exactly 360 ° regular prism 1; Interconnective like this sidewall is coplane not directly, just need interconnect through web member.In preferred implementation as shown in the figure, preferably adopt positive six prisms, so not only one-piece construction is firm, and the voidage of biofilm carrier is better.Preferably adopting altogether between interconnective positive six prisms, the mode of sidewall connects.

Preferably, a plurality of said regular prisms 1 are equal positive six prisms of size.

Preceding text have been described and have been adopted positive six prisms to constitute biofilm carrier in the preferred implementation of the utility model, repeat no more here.In addition, each positive six prismatical size equates, is convenient to so more each positive six prisms are linked together.

Preferably, a plurality of said regular prisms 1 link together about the medullary ray of the circumscribed circle cylinder of said column symmetrically.

As shown in Figure 2, all inner regular prisms 1 of biofilm carrier all are provided with symmetrically.Particularly, should interconnect the column that constitutes by a plurality of regular prisms 1 and have the circumscribed circle cylinder, all regular prisms 1 all link together about the medullary ray of this circumscribed circle cylinder symmetrically.

Preferably, the top of said column and/or middle part and/or bottom outside are with annulus 2.

In order further the biofilm carrier of the utility model to be reinforced; At the top of the column of biofilm carrier and/or middle part and/or bottom outside be with annulus 2; These annulus also can be provided with simultaneously also can distinguish arbitrary combination ground setting as required, and the utility model does not limit this.

Preferably, the sidewall of said regular prism 1 is processed as corrugated surface.Preferably, the sidewall of said regular prism 1 is a smooth surface, and the surface except that the outside surface of said column is provided with projection.

The sidewall of the said regular prism 1 in the utility model can be corrugated surface, and corrugated surface also can adopt various ways, for example zig-zag, circular arc or other undulatory surfaces etc.In addition, the sidewall of said regular prism 1 also can be smooth surface, and be provided with projection on the surface except the sidewall of the outermost regular prism 1 that is positioned at column this moment.In addition, each sidewall of each said regular prism 1 can have the different surface characteristic, and the utility model does not limit this.

Such format surface can suitably increase the specific surface area of biofilm carrier as required.And also can play good shock absorption, thereby make the microbial film on biofilm carrier surface be difficult for running off for impact force of water flow.

Preferably, the height of said annulus 2 is 2mm-10mm, and thickness is 0.2mm-2mm.Preferably, the thickness of the sidewall of said regular prism is 0.05mm-3mm.Preferably, H/D is 0.1-3.

More than the given an example dimensional parameters of preferred implementation of biofilm carrier of the utility model is preferably selected the manufacturing dimension of biofilm carrier in above-mentioned scope, can obtain wastewater treatment efficiency preferably.But the utility model is not limited to this, can make according to actual needs.

Preferably, the proportion of said biofilm carrier is 0.90-0.99.

Because the biofilm carrier of the utility model need be suspended in the water usually, the material of therefore selecting proportion to be slightly less than water is made, thereby makes this biofilm carrier to be suspended in the sewage preferably.Usually, the biofilm carrier of the utility model is selected organic polymer material, generally adopts materials such as Vilaterm or Vestolen PP 7052.

More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.

Need to prove in addition; Each concrete technical characterictic described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner; For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.

In addition, also can carry out arbitrary combination between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.

Claims

1. a biofilm carrier is characterized in that, this biofilm carrier is for being interconnected the column of formation by a plurality of regular prisms (1), and a plurality of regular prisms of wherein adjacent this link together through sidewall, and the height of this column is that the diameter of H and circumscribed circle cylinder is D.

2. biofilm carrier according to claim 1 is characterized in that, positive six prisms that a plurality of said regular prisms (1) equate for size.

3. biofilm carrier according to claim 1 and 2 is characterized in that, a plurality of said regular prisms (1) link together about the medullary ray of the circumscribed circle cylinder of said column symmetrically.

4. biofilm carrier according to claim 3 is characterized in that, the top of said column and/or middle part and/or bottom outside are with annulus (2).

5. biofilm carrier according to claim 4 is characterized in that, the height of said annulus (2) is 2mm-10mm, and thickness is 0.2mm-2mm.

6. biofilm carrier according to claim 3 is characterized in that, the sidewall of said regular prism (1) is processed as corrugated surface.

7. biofilm carrier according to claim 3 is characterized in that, the sidewall of said regular prism (1) is a smooth surface, and the surface except that the outside surface of said column is provided with projection.

8. biofilm carrier according to claim 3 is characterized in that, the thickness of the sidewall of said regular prism is 0.05mm-3mm.

9. biofilm carrier according to claim 3 is characterized in that, H/D is 0.1-3.

10. biofilm carrier according to claim 3 is characterized in that, the proportion of said biofilm carrier is 0.90-0.99.