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Immobilized microorganism carrier, and contact oxidation combination system employing same

A microbial immobilization and carrier technology, which is applied in the direction of immobilized enzymes, biochemical equipment and methods on/in organic carriers, can solve problems that have not been studied, and achieve improved wear resistance and excellent performance. The effect of purification treatment ability

Inactive Publication Date: 2016-06-29
新日本羽芯株式会社
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these documents, for the purpose of increasing the microbial attachment area, the technology of making the microbial carrier hollow is described, but regarding the maintenance of the aerobic state of the central part of the microbial immobilization carrier and the improvement of wear resistance, no research

Method used

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  • Immobilized microorganism carrier, and contact oxidation combination system employing same
  • Immobilized microorganism carrier, and contact oxidation combination system employing same
  • Immobilized microorganism carrier, and contact oxidation combination system employing same

Examples

Experimental program
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Effect test

Embodiment approach 1

[0078] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 2 is a diagram showing the microorganism immobilization carrier of the present invention.

[0079] figure 2 The microbial immobilization carrier composed of porous foam of the present invention shown in the figure is a carrier for carrying aerobic microorganisms in the activated sludge in the aeration tank, and can be obtained by adjusting the water swelling properties known in the technical field. Manufactured by processing synthetic resins such as polyurethane foam, inorganic materials such as ceramics and silica gel, and sponges.

[0080] In this embodiment, the foam 2 made of a synthetic sponge material such as polyurethane sponge is processed to make microorganism immobilization carriers 1a, 1b ( figure 2 (a), (b)). In addition, microorganism immobilization carriers 1c, 1d, and 1e ( figure 2 (c), (d), (e)).

[0081] The shape of the microorganism immo...

example 1

[0166] use figure 1 Microorganism immobilization carrier composed of conventional porous foam (resin sponge) explained

[0167] Dimensions: 10mm×10mm×10mm cube shape

[0168] Cavity: no

[0169] Ring-shaped film of the inner peripheral wall of the cell forming the porous structure of the foam: no test body 3 (comparative example 2)

[0170] The microorganism-immobilized carrier of the structure described in Embodiment 1

[0171] Dimensions: 10mm×10mm×10mm cube shape

[0172] The size of the cavity: a cylindrical cavity with a diameter of 7mm

[0173] Such as Figure 7 As shown in (a), the ring-shaped membrane structure is formed on the inner peripheral wall of the cell forming the porous structure of the foam

[0174] About each test body, the dry weight before implementation of an abrasion test and after implementation of an abrasion test was measured, respectively.

[0175] express the result in Figure 11 in the graph of . In test bodies 2 and 3 (comparative exampl...

Embodiment approach 2

[0185] Figure 12 A schematic configuration of an example of a composite water purification treatment system of a fixed bed method and a fluidized bed method in which a fixed bed method and a fluidized bed method are combined in the water purification treatment system of the present invention, that is, an example of a combined contact oxidation system is described. picture.

[0186] In the purified treated water from the upstream side ( Figure 12 middle, left side) to the downstream side ( Figure 12 In a water tank 1 for purification treatment flowing in the middle, right side), a fluidized bed area 22 and a fixed bed area 23 are adjacently provided, and a wire mesh 24 is arranged at the boundary between the fluidized bed area 22 and the fixed bed area 23.

[0187] The wire mesh 24 enables the flow of treated water between the fluidized bed region 22 and the fixed bed region 23 , while preventing the fluidized bed contact material 29 flowing in the fluidized bed region 22 ...

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Abstract

Provided are an immobilized microorganism carrier for use in a fluidized bed, the carrier having exceptional wear resistance and ability to maintain an aerobic state in the center part of the immobilized microorganism carrier; as well as a water treatment system employing the same. This immobilized microorganism carrier comprises a three-dimensional structure comprising a porous foam and is provided with a prescribed cavity portion, a flow being created within an aeration tank. Due to the formation of the cavity portion, the specific surface area is increased by 10%-20%, as compared with the three-dimensional structure in which the cavity portion has not been formed. This contact oxidation combination system is provided with a fluidized bed zone in which purification treatment takes place by a fluidized bed process, and a fixed bed zone in which purification treatment takes place by a fixed bed process, the zones being arranged adjacently within a water tank for a single purification treatment in which treated water undergoing the purification treatment flows from the upstream side towards the downstream side, and employs the immobilized microorganism carrier as a contact material for the fluidized bed.

Description

technical field [0001] The present invention relates to a microorganism-immobilized carrier carrying microorganisms in a method of treating sludge using microorganisms. Also, it relates to a water purification treatment system using the microorganism-immobilized carrier. Background technique [0002] Conventionally, various methods such as the activated sludge method have been proposed for purifying sewage, wastewater, and the like. [0003] The activated sludge method is to mix the sludge and the activated sludge in the aeration tank, aerate the aerobic microorganisms in the activated sludge to decompose the dirty substances in the sludge, and make the excess activated sludge and purified A method for dealing with water separation. [0004] Patent Document 1 proposes an invention in which, in the activated sludge method as described above, a carrier holding aerobic microorganisms is injected, and the carrier with microorganisms attached thereto flows in an aeration tank t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10
CPCC02F3/108C12N11/04C12N11/093Y02W10/10
Inventor 小林光广武部尚市铃木真隆
Owner 新日本羽芯株式会社
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