Reinforced biological stuffing and preparation method thereof

Active Publication Date: 2013-06-05
ENN ENVIROTECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, in the case of using granular activated carbon to glue the parent material, in the process of water treatment, due to the action of water flow, the granular activated carbon is easy to fall off, resulting in the loss of bio-hanging film, the failure is relatively fast, and the treatment cycle is short

Method used

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  • Reinforced biological stuffing and preparation method thereof
  • Reinforced biological stuffing and preparation method thereof
  • Reinforced biological stuffing and preparation method thereof

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preparation example Construction

[0018] The invention provides a reinforced biological filler and a preparation method thereof. The enhanced biological filler can overcome the defects that the active carbon is easy to fall off, which causes relatively fast failure and short cycle time. By loading chopped activated carbon fibers and activated carbon particles on the surface of the filler, the specific surface area of ​​the biological filler can be increased, and the structural properties of the two materials can be used to compositely enhance the mechanical properties of the filler, that is, the functional body (high specific surface area) and reinforcement (mechanical properties). The principle is as follows: short-cut activated carbon fibers and activated carbon particles with high specific surface area are selected as reinforcing materials. The former is fibrous and has one-dimensional high tensile strength, and the latter is approximately spherical and has three-dimensional homogeneity. The two materials ...

Embodiment 1

[0069] Example 1 (Preparation and performance characterization of high specific surface polyurethane biofillers with super-hybrid composite reinforcing layer)

[0070] A high specific surface polyurethane biofiller with a super-hybrid composite reinforcement layer was prepared by the following steps.

[0071] 1. Activated carbon particles (coconut shell, Beijing Kecheng Guanghua Co., Ltd., powder particle size: 30-80μm, specific surface area about 1000m 2 / g) and chopped activated carbon fiber (STC1300, Jiangsu Sutong Carbon Fiber Co., Ltd., with a diameter of 10-30 μm and a length of 0.05-0.5 mm, namely: Φ(10-30) μm*(50-500) μm, the specific surface area is about 1300m 2 / g) were dried at 120° C. for 4 hours; then 600 g of dried activated carbon particles and 100 g of dried chopped activated carbon fibers were placed in a rotary box (cylindrical, 40 cm in diameter, 100 cm in length, and the rotation speed was 100 rpm), Thoroughly mix by rotating; 10ml nitrifying bacteria ag...

Embodiment 2

[0101] Example 2 (Preparation and performance characterization of high specific surface polyurethane biofillers with super-hybrid composite reinforcing layer)

[0102] Preparation of high specific surface polyurethane biofillers with hyperhybrid composite reinforcement layer by dry method.

[0103] 1. Activated carbon particles (coconut shell, Beijing Kecheng Guanghua Co., Ltd., powder particle size: 30-80μm, specific surface area about 1000m 2 / g) and chopped activated carbon fiber (STC1300, Jiangsu Sutong Carbon Fiber Co., Ltd., with a diameter of 10-30 μm and a length of 0.05-0.5 mm, namely: Φ(10-30) μm*(50-500) μm, the specific surface area is about 1300m 2 / g), were dried at 120°C for 4 hours, and then 600g of dried activated carbon particles and 100g of dried chopped activated carbon fibers were placed in a rotary box (cylindrical, 40cm in diameter, 100cm in length, and the rotation speed was 100rpm) , fully mixed by rotation; with 70 parts by weight of mixed powder, 1...

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Abstract

The invention provides reinforced biological stuffing and a preparation method thereof. The reinforced biological stuffing comprises porosity base material, short-cut active carbon fibers, active carbon granules, and biological materials, wherein the short-cut active carbon fibers and the active carbon granules are stuck on the porosity base material, and biological materials are used for treatment of waste water. According to the reinforced biological stuffing prepared with the method, powder stuck on the reinforced biological stuffing can not fall off easily, water-impact resistance is good, a contact angle is small, biocompatibility is strong, the specific surface area is high, functions of microflora and nutrition slow releasing are achieved at the same time, and mud discharge is convenient.

Description

technical field [0001] The invention relates to the field of wastewater treatment, and in particular, to a reinforced biological filler and a preparation method thereof. Background technique [0002] In the field of wastewater treatment, due to cost advantages, microorganisms are often used to treat wastewater from various sources, such as urban domestic wastewater and industrial wastewater, such as wastewater produced by coal gasification processes. In the process of treating wastewater with microorganisms, fillers are often used as carriers for the reproduction and growth of microorganisms. Microorganisms grow in large numbers and form a film-like biological community on the filler, forming a food chain that can effectively remove organic pollutants in water. This kind of filler is called biological filler. [0003] There are many types of biological fillers, such as shaped fixed fillers, suspended fillers, suspended fillers and combined fillers. This type of filler is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10
CPCY02W10/10
Inventor 李伟张国涛贾永强
Owner ENN ENVIROTECH CO LTD
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