Hydrophilic active biological film suspend carrier and method for making the same

A technology of active biofilm and suspension carrier, applied in the direction of sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of weak biological affinity, weak biofilm adhesion, poor biochemical degradation efficiency, etc. problems, achieve the effect of improving wettability and mass transfer, increasing the speed of biochemical reaction, and promoting the speed of biochemical reaction

Inactive Publication Date: 2008-10-15
于春荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The molecular structure of polyethylene, polypropylene, polyvinyl chloride and other hydrophobic polymer resin materials is linear, there is no hydrophilic group (OH) on the molecular chain, and the surface wettability of the carrier is poor, resulting in poor mass transfer ability and The ability of microorganisms to attach is greatly reduced, thus limiting the formation rate and amount of biofilm on the carrier surface
Especially under the strong impact of fluid dynamics, the collision, friction, and shearing between the carriers cause a large number of microorganisms adsorbed on the carrier surface to fall off, reducing the biochemical degradation efficiency.
[0007] 2. The carrier directly made of polyethylene, polypropylene, polyvinyl chloride and other hydrophobic polymer resin materials is inert to microorganisms, and has no effect on promoting and activating microorganisms, so the biological affinity is weak, which is not conducive to the growth of microorganisms. Longer film hanging time
[0008] 3. The surface of the carrier directly made of polyethylene, polypropylene, polyvinyl chloride and other hydrophobic polymer resin materials is too smooth, the biofilm adhesion is weak, the impact resistance is poor, and the biofilm is easy to fall off
[0009] 4. The specific surface area of ​​the carrier directly made of polyethylene, polypropylene, polyvinyl chloride and other hydrophobic polymer resin materials is small, the amount of biofilm is relatively low, and the biochemical degradation efficiency is poor
[0010] 5. Carriers directly manufactured with hydrophobic polymer resin materials such as polyethylene, polypropylene, and polyvinyl chloride have high costs, and it is difficult to popularize and apply them

Method used

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  • Hydrophilic active biological film suspend carrier and method for making the same
  • Hydrophilic active biological film suspend carrier and method for making the same
  • Hydrophilic active biological film suspend carrier and method for making the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] carrier structure

[0036] The hydrophilic active biofilm suspension carrier adopts a plum-shaped tubular structure or a circular tubular structure, with a wall thickness of ≤0.5mm and a density of ≥0.965g / cm 3 , ≤0.985g / cm 3 .

[0037] exist figure 1 The middle casing (1) is a quincunx tubular structure.

[0038] exist figure 2 The housing (1) is composed of plum blossom petals (2) connected end to end, and a cross-shaped reinforcing rib (4) is arranged in the housing (1), which divides the housing (1) into four inner cavities (3). Protruding teeth (5) are arranged on the connecting points of the plum blossom petals (2) of (3).

[0039] exist image 3 The middle casing (6) is a circular tube-shaped structure.

[0040] exist Figure 4 A cross-shaped reinforcing rib (9) is arranged in the middle casing (6), and the casing (6) is divided into four inner cavities (8), and protruding teeth (7) are arranged on the inner wall of the casing (6).

[0041] Raw materials ...

Embodiment 2

[0074] carrier structure

[0075] The hydrophilic active biofilm suspension carrier adopts a plum-shaped tubular structure or a circular tubular structure, with a wall thickness of ≤0.5mm and a density of ≥0.965g / cm 3 , ≤0.985g / cm 3 .

[0076] exist figure 1 The middle casing (1) is a quincunx tubular structure.

[0077] exist figure 2 The housing (1) is composed of plum blossom petals (2) connected end to end, and a cross-shaped reinforcing rib (4) is arranged in the housing (1), which divides the housing (1) into four inner cavities (3). Protruding teeth (5) are arranged on the connecting points of the plum blossom petals (2) of (3).

[0078] exist image 3 The middle casing (6) is a circular tube-shaped structure.

[0079] exist Figure 4 A cross-shaped reinforcing rib (9) is arranged in the middle casing (6), and the casing (6) is divided into four inner cavities (8), and protruding teeth (7) are arranged on the inner wall of the casing (6).

[0080] Raw material...

Embodiment 3

[0113] carrier structure

[0114] The hydrophilic active biofilm suspension carrier adopts a plum-shaped tubular structure or a circular tubular structure, with a wall thickness of ≤0.5mm and a density of ≥0.965g / cm 3 , ≤0.985g / cm 3 .

[0115] exist figure 1 The middle casing (1) is a quincunx tubular structure.

[0116] exist figure 2 The housing (1) is composed of plum blossom petals (2) connected end to end, and a cross-shaped reinforcing rib (4) is arranged in the housing (1), which divides the housing (1) into four inner cavities (3). Protruding teeth (5) are arranged on the connecting points of the plum blossom petals (2) of (3).

[0117] exist image 3 The middle casing (6) is a circular tube-shaped structure.

[0118] exist Figure 4 A cross-shaped reinforcing rib (9) is arranged in the middle casing (6), and the casing (6) is divided into four inner cavities (8), and protruding teeth (7) are arranged on the inner wall of the casing (6).

[0119] Raw material...

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Abstract

The invention discloses a hydrophilic and active biological film suspended carrier as well as the manufacturing method thereof. The carrier substrate adopts polyethylene or polypropylene resin, and hydrophilic and polymeric surfactant, biological enzyme accelerator and microbial affinant mixing granulations are added, thereby being molded by extrusion. The carrier is characterized in that firstly, the carrier has good hydrophilicity and mass transferring property; secondly, the carrier has the characteristics of catalyzing the oxidation reaction and the reduction reaction; thirdly, the carrier has microbial affinity; fourthly, the carrier has the characteristics of large specific surface area, fast biological film cultivation speed and high load impact resistance; and fifthly, the manufacturing cost is low, and the processing technology is simple.

Description

technical field [0001] The invention relates to a hydrophilic active biofilm suspension carrier suitable for sewage biological (aerobic) treatment process in the field of environmental protection and a manufacturing method thereof. technical background [0002] There are many types of biological (aerobic) methods in the sewage treatment process, such as: activated sludge method, AB method, SBR method, MSBR method, oxidation ditch method, contact oxidation method, biofilm moving bed method, etc., according to the growth of microorganisms Generally speaking, it can be divided into two types: growth in suspension state and growth in attached state. The former is represented by the activated sludge method, and microorganisms grow in suspension in the form of activated sludge in the aeration tank; the latter is represented by the biofilm moving bed method, and the microorganisms are fixed on the surface of the carrier in the form of biofilm in the aeration tank Grow in an attach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 于春荣
Owner 于春荣
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