Suspended biological carrier adapted to microbial bodies, and preparation method

A biological carrier, a suitable technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem of insufficient nutrient and oxygen supply, difficult to make full use of internal space, and microbial blockage of pore network structure. and other problems, to achieve the effects of excellent hydrodynamic properties, simple structure and low cost

Inactive Publication Date: 2007-05-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are still some deficiencies: (1) because the fixed plate is a flat plate structure, the surface is smooth, and the sawtooth groove on the surface of the wing plate is in a single direction, so it is not easy for organisms to attach; (2) because there is no hole in the plane of the wing plate, hydrodynamics Poor performance, resulting in insufficient nutrition and oxygen supply on the carrier; (3) Due to the need to adjust the specific gravity through the structure, the st

Method used

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  • Suspended biological carrier adapted to microbial bodies, and preparation method
  • Suspended biological carrier adapted to microbial bodies, and preparation method
  • Suspended biological carrier adapted to microbial bodies, and preparation method

Examples

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Example Embodiment

[0026] Example 1

[0027] As shown in Figure 1, the suspension biological carrier adapted to the shape of microorganisms is prepared by using a mold with grooves in the cross section and a rough inner surface, extruding the molten polymer colloid through a polymer extruder to form A filamentous polymer body with a raised cross section and a rough surface. The cross-sectional shape of the filamentous polymer body is determined by the cross-sectional shape of the mold. The cross-sectional shape of the filamentous polymer body shown in Figure 2 is circular, with 6 0.5mm protrusion, the surface is relatively rough, the wire diameter is 2mm, the helix diameter is 8mm and the pitch is 6mm when the filamentous polymer body is wound helically, and 7 filaments are spirally wound to form a single-layer irregular void suspended biological carrier.

[0028] When a double-layer or multi-layer structure is required for a suspended biological carrier adapted to the microbial shape, it is fo...

Example Embodiment

[0031] Example 2

[0032] As shown in Figure 4, the suspension biological carrier adapted to the shape of microorganisms is prepared by using a mold with grooves in the cross section and a rough inner surface, extruding the molten polymer colloid through a polymer extruder to form A filamentous polymer body with a raised section and a rough surface. The cross-sectional shape of the filamentary polymer body is determined by the cross-sectional shape of the mold. The cross-sectional shape of the filamentary polymer body shown in Figure 5 is circular, with 8 1mm protrusion, the surface is relatively rough, the wire diameter is 1.2mm, the helix diameter selected for the helical winding of the filamentous polymer is 7mm, the pitch is 7mm, 24 filamentous polymers are spirally wound to form 8 filaments per layer The 3-layer cube is then cut into a suspended biological carrier suitable for the cylindrical microorganism shape as shown in Figure 4. Its working process is the same as im...

Example Embodiment

[0033] Example 3

[0034] As shown in Figure 6, the suspended biological carrier adapted to the shape of microorganisms is prepared by using a mold with grooves in the cross section and a rough inner surface, extruding the molten polymer colloid through a polymer extruder to form A filamentous polymer body with a raised section and a rough surface. The cross-sectional shape of the filamentary polymer body is determined by the cross-sectional shape of the mold. The cross-sectional shape of the filamentary polymer body shown in Figure 7 is square, and the cross-sectional size is 1×1mm , with 4 protrusions of 0.7mm, the surface is relatively rough, the wire diameter is 2.5mm, the helix diameter selected for the helical winding of the filamentous polymer body is 8mm, the pitch is 5mm, and 49 filaments are spirally wound to form each layer The 7-layer cube of 7 filaments is then cut into a suspended biological carrier suitable for the shape of the spherical microorganism as shown i...

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Abstract

This invention relates to a biological carrier for water treatment, more specifically, a suspended microbe carrier and its preparation method. The method adopts a polymer extruder, whose spray nozzle is equipped with a mold with a groove at the section and rough inner surface. The mold can extrude filamentous polymer with convex section and rough surface. The diameters of the filaments are 1-3 mm. winding of several filaments of the filamentous polymer can form suspended microbe carrier with arbitrary structure. The helical diameters of the helically winding filamentous polymer are 6-8 mm, and the pitches are 4-7 mm. The suspended microbe carrier can match the sizes and physical structures of microbes in wastewater, and has such advantages as simple structure, easy preparation, and excellent hydrodynamic properties.

Description

technical field [0001] The invention relates to a biological carrier for water treatment, in particular to a suspended biological carrier compatible with the shape of microorganisms and a preparation method thereof. Background technique [0002] Suspended biological carrier is one of the important materials for sewage biological treatment. At present, there are many suspended biological carriers in practical application, which play an important role in sewage treatment. In the study of suspended biological carriers, the carrier structure is one of the research hotspots. For example, Chinese patent 02218096.6 discloses a suspended biological carrier with adjustable specific gravity, which consists of arc-shaped fixed plate, arc-shaped wing plate, fixed ring, and specific gravity adjustment tube. , fixed ring connection, large specific surface area, can adjust the specific gravity, free suspension in the sewage, under the action of aeration, it is flui...

Claims

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Application Information

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IPC IPC(8): C02F3/10
CPCY02W10/10
Inventor 陈维平江帆李元元张弢朱权利
Owner SOUTH CHINA UNIV OF TECH
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