Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation and control method thereof

A technology of biological carrier and fiber bundle, which is applied in the field of water treatment, can solve the problems of slow adhesion of microorganisms on the surface of the Pall ring, high requirements for uniformity of water distribution and air distribution, and unstable adhesion of microorganisms. Pressure, not easy to drain effect

Inactive Publication Date: 2021-10-01
天津科信建设工程检测有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the fixed packing has high requirements on the uniformity of water and gas distribution, which is prone to difficulty in film removal and clogging, resulting in poor sewage treatment effect
In the fluidized bed type, the adhesion speed of microorganisms on the surface of the Pall ring is slow and the adhesion force is weak; the polyurethane sponge is prone to problems such as broken foam and falling off
As a result, the attachment of microorganisms attached to it is not stable enough

Method used

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  • Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation and control method thereof
  • Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation and control method thereof
  • Double-knot fiber bundle floating ball biological carrier and microorganism attachment regulation and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0056] A double-knotted fiber bundle floating ball biological carrier comprises a reticulated spherical shell and a ring-type double-knotted fiber bundle placed in the reticulated spherical shell.

[0057] The double-knot fiber bundle includes nylon rope, fiber filament and fixing part. The fiber filament is fixed with the nylon rope at multiple points along the length direction of the nylon rope. The length between any two adjacent fixed points of the fiber filament is greater than that of the nylon rope and the fiber filament. The length between fixed positions, the distance between two adjacent fixed points of the fiber filament is 0.2cm, and the maximum distance between the middle position of the part between two adjacent fixed points of the fiber filament and the axis of the nylon rope is 1.5cm.

[0058] The fiber filaments include fiber thick filaments and fiber filaments. In this embodiment, the fiber filaments are 300D modified polypropylene fibers, the fiber thick fila...

preparation example 2

[0060] The difference with Preparation Example 1 is:

[0061] The distance between two adjacent fixed points of the fiber filament is 1 cm, and the maximum distance between the middle position of the part between the two adjacent fixed points of the fiber filament and the axis of the nylon rope is 2 cm.

[0062] A bundle of 50 fiber filaments, a single fiber thick filament and a single bundle of fiber filaments are arranged alternately in the circumferential direction of the nylon filament, and the sum of the number of fiber filament bundles and the number of fiber thick filaments is 21; The 1.5cm of the nylon rope is fixed with a single knot using a nylon cable tie, and the fiber and the nylon rope are fixed together. Finally, the double-knot fiber bundle is bent in a circular shape, and packaged in a reticular spherical shell with a diameter of 8 cm.

preparation example 3

[0064] The difference with Preparation Example 1 is:

[0065] The distance between two adjacent fixed points of the fiber filament is 0.3cm, and the maximum distance between the middle position of the part between the two adjacent fixed points of the fiber filament and the axis of the nylon rope is 2.5cm.

[0066] A bundle of 60 fiber filaments, a single fiber thick filament and a single bundle of fiber filaments are arranged alternately in the circumferential direction of the nylon filament, and the sum of the number of fiber filament bundles and the number of fiber thick filaments is 40; The 2cm of the nylon rope is fixed with a single knot using a nylon cable tie, and the fiber and the nylon rope are fixed together. Finally, the double-knot fiber bundle is bent in a circular shape and packaged in a reticular spherical shell with a diameter of 10 cm.

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Abstract

The invention relates to the field of water treatment, and particularly discloses a double-knot fiber bundle floating ball biological carrier and a microorganism attachment regulation and control method thereof. The double-knot fiber bundle floating ball biological carrier comprises a net-shaped spherical shell, an annular double-knot fiber bundle is arranged in the net-shaped spherical shell, the double-knot fiber bundle comprises a nylon rope, fibers and a fixing part, and the fibers are fixed to the nylon rope in a multi-point mode in the length direction of the nylon rope. The length between any two adjacent fixing points of the fiber yarn is larger than the length between the nylon rope and the fiber yarn fixing position, and the fixing parts are located at the two ends of the nylon rope and bind the nylon rope and the fiber yarn together. The microorganism attachment regulation and control method comprises the following steps: putting a biological carrier into a biological membrane denitrification treatment tank, taking activated sludge as inoculated sludge, putting the activated sludge into the treatment tank, injecting sewage into the treatment tank, and carrying out intermittent aeration for microbial attachment. The method has the effects of being high in microorganism attachment speed and stable in attachment.

Description

technical field [0001] The present application relates to the field of water treatment, in particular to a double-knotted fiber bundle floating ball biological carrier and a method for controlling microbial attachment. Background technique [0002] Rural sewage treatment is an important part of the construction of ecological civilization. At present, rural sewage treatment technologies mainly include traditional activated sludge method + membrane bioreactor, artificial wetland, biological turntable, biofilm process, etc. Compared with other processes, the biofilm process has the advantages of stable operation, low cost, and good treatment effect, and is suitable for popularization and application in rural areas. [0003] The core of the biofilm process is the biological carrier. At present, the commonly used biological carriers are fixed bed type (such as fiber curtain) and fluidized bed type (such as polyurethane sponge, multi-faceted hollow ball, plastic Pall ring, suspen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/08C02F3/10C02F3/12C02F3/34C02F101/16C02F101/30
CPCC02F3/006C02F3/34C02F3/08C02F3/103C02F3/108C02F3/109C02F3/12C02F2101/16C02F2101/30Y02W10/10
Inventor 柴红珍刘宏云季民吴作栋胡崇尊
Owner 天津科信建设工程检测有限公司
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