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Aeration hollow fiber membrane component and connection structure thereof

A connection structure and fiber membrane technology, applied in the direction of sustainable biological treatment, water/sludge/sewage treatment, biological water/sewage treatment, etc., can solve the problem of low oxygen utilization and power efficiency, single structure of aeration device, Problems such as poor mass transfer uniformity, to achieve the effect of flexible use, low energy consumption of aeration, and high stability

Active Publication Date: 2015-11-11
XIAMEN LEEBAM MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many types of existing aeration devices, such as diffuse flow aerators, tube aerators, Jinshan type aerators, etc. Most of them are machined into holes on discs or tubes. Due to structural limitations, The minimum aperture of the aeration hole can only reach about 100um, the formed bubbles are large, the oxygenation performance is poor, the utilization rate of oxygen and power efficiency are low, and the energy consumption is high
In addition, due to the single structure of the aeration device, the specific surface area is small, the mass transfer uniformity with water is poor, and the density of the aeration holes is low, the space utilization rate is low, and the flexibility is poor, which affects the aeration effect.

Method used

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  • Aeration hollow fiber membrane component and connection structure thereof
  • Aeration hollow fiber membrane component and connection structure thereof
  • Aeration hollow fiber membrane component and connection structure thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] see figure 1 , the aeration hollow fiber membrane module 1 of the present invention has a columnar structure, including a main body 11 and several hollow fiber membranes 12 , and the hollow fiber membranes 12 are arranged between two ends of the main body 11 . One end of the main body 11 is the inlet end 11a, and the other end is the fixed end 11b. Each hollow fiber membrane 12 is bent in a U-shaped structure, and its two ends communicate with the inlet end 11a and the curved end is limited to the fixed end 11b.

[0032] Hollow fiber membranes are fiber-like and self-supporting membranes. They are usually made of polymer materials and have good flexibility and strength. The membrane walls are covered with micropores, which are used as aeration holes in the present invention. Gas enters the inner cavity of each hollow fiber membrane 12 from the gas inlet port 11a, and diffuses outward through the aeration holes of the membrane wall to form microbubbles invisible to the n...

Embodiment 2

[0039] The aerated hollow fiber membrane module 1 of this embodiment is the same as that of Embodiment 1, and will not be repeated here. refer to Figure 6, the aeration hollow fiber membrane modules 1 are connected through the gas pipe 4 to form a dendritic structure. Several joints 41 are arranged up and down on the circumferential surface of the gas main pipe 4 , and each joint 41 is connected to an aeration hollow fiber membrane module 1 so that the air main pipe 4 and each hollow fiber membrane 12 are connected. A plurality of gas main pipes 4 are connected in series to form an air passage, one end of the air passage communicates with the air intake device, and the other end is closed by a plug. Specifically, the gas main tubes 4 are sealed and fixed by screwing, and the corresponding number and length can be assembled according to actual needs. In addition, the gas main pipe 4 may also adopt a bent pipe structure for a better layout. The hollow fiber membrane module 1...

Embodiment 3

[0041] The aeration hollow fiber membrane module 1 and the gas main pipe 4 of this embodiment and their connection structures are the same as those of the embodiment 2, and will not be repeated here. refer to Figure 7 , also includes a three-way joint 5, one end of the three-way joint 5 communicates with the air intake device, and the other two ends communicate with an air main pipe 4, and the end of the air main pipe is closed by a plug 6. The air intake device transmits gas to the gas main pipes 4 on both sides at the same time, and the speed is faster. The concentration of dissolved oxygen in the region of this embodiment is high and concentrated, and is suitable for a reaction pool where an aerobic region and an anaerobic region are intersected. In addition, a plurality of gas main pipes 4 can also be arranged at both ends and connected in series, or the three-way joint 5 can be combined with the gas main pipe 2 of embodiment 1, or the gas main pipe 2 and the gas main pi...

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Abstract

The invention discloses an aeration hollow fiber membrane component which comprises a main body and a plurality of hollow fiber membranes, wherein the hollow fiber membranes are distributed between both ends of the main body to form a column structure. One end of the main body is a gas inlet end, and the other end is a fixed end; the hollow fiber membranes are bent to form a U-shaped structure, the two tail ends are communicated with the gas inlet end, and the bent end is limited to the fixed end; and gas enters the inner cavities of the hollow fiber membranes from the gas inlet end, forms microbubbles via aeration holes of the membrane walls and is diffused outwards. The aeration hollow fiber membrane component has the advantages of large gas-liquid transfer area, favorable aeration property and low energy consumption. The invention also discloses a connection structure formed by connecting a plurality of the components through gas mother pipes, which is suitable for different demands conditions, is flexible to use and easy to replace and saves the cost.

Description

technical field [0001] The invention relates to the field of sewage and waste water treatment, in particular to an aeration hollow fiber membrane module and its connecting structure. Background technique [0002] In the wastewater and sewage treatment process, biochemical treatment is a very important link. Among them, the aerobic biochemical treatment is to force the oxygen in the air to be transferred to the sewage and wastewater through the aeration device to increase the concentration of dissolved oxygen in the water, so as to ensure that the aerobic microorganisms in the sludge liquid can treat the organic matter in the sewage under the condition of sufficient dissolved oxygen. Oxidative decomposition is carried out to remove impurities in water and achieve the purpose of purifying water quality. [0003] The aeration system is the largest energy-consuming link in the wastewater treatment process, accounting for about 50-70% of the total energy consumption. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 王俊川林玉泰王木森林锦松
Owner XIAMEN LEEBAM MEMBRANE TECH