Fixed microbe rubber granule filler, preparation and application thereof

A technology for immobilizing microorganisms and rubber particles, which is applied in biological water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. It can solve the problems of poor biological stability, slow start of film formation, and large impact. , to achieve the effect of good stability, improved concentration and purity, and light specific gravity

Inactive Publication Date: 2010-04-14
BEIJING GUODIAN FUTONG SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the Chinese patent document whose publication number is CN1884152A, a domestic sewage treatment device and method are disclosed. The water treatment filler used in it is also rubber particles, and the biofilm enriched by microorganisms is attached and grown on the rubber particle fillers. (See the last paragraph on page 1 of the description to the first two lines of the first paragraph on page 2), but through long-term use and research, the applicant has found that the rubber particles also have the following disadvantages as water treatment fillers: the film-hanging startup is slow (That is, it takes a long time for the biofilm to start to work), and it is greatly affected by the quality of the raw water, and the biological stability after the film is poor

Method used

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  • Fixed microbe rubber granule filler, preparation and application thereof
  • Fixed microbe rubber granule filler, preparation and application thereof
  • Fixed microbe rubber granule filler, preparation and application thereof

Examples

Experimental program
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Embodiment 1

[0019] The immobilized microbial rubber particle filler of the present invention includes rubber particles as a carrier, an embedding agent and a microbial enzyme preparation for providing microorganisms, and the rubber particles interact with the embedding agent and the microbial enzyme preparation to form Synthesize the polymer gel, embed and fix the microorganisms in the microbial enzyme preparation in the gel network to form the rubber particle filler of the immobilized microorganisms, the microbial enzyme preparation used in this embodiment is carbonized thallus, see figure 1 , its particle diameter is 0.5-1mm, and the diameter of the rubber particle used is 5-8 millimeter (referring to figure 2 ), the embedding agent used is polyvinyl alcohol, wherein the mass ratio of rubber particles, polyvinyl alcohol and carbonized bacteria is 3:30:0.02.

[0020] The preparation method of the immobilized microbial rubber particle filler of the present embodiment is as follows: (1) ...

Embodiment 2

[0025] The difference between this embodiment and embodiment 1 is that the mass ratio of rubber particles, polyvinyl alcohol and carbonized bacteria is 6.5:38:0.08, and the others are the same as in embodiment 1, and will not be repeated here.

Embodiment 3

[0027] The microbial enzyme preparation used in this embodiment is carbonized thallus, see figure 1 , its particle diameter is 0.5-1mm, and the diameter of the rubber particle used is 5-8 millimeter (referring to figure 2 ), the embedding agent used is polyvinyl alcohol and sodium alginate, wherein the mass ratio of rubber particles, embedding agent and carbonized bacteria is 4.5:35:0.05, and the mass ratio of polyvinyl alcohol and sodium alginate is 50:1.

[0028] The preparation method of the immobilized microbial rubber particle filler of the present embodiment is as follows: (1) Preparation of rubber particles: 80% old tire powder and 20% ethylene-vinyl acetate (EVA) and activated carbon are mixed and stirred, and compressed into diameter (2) The total mass of polyvinyl alcohol and sodium alginate is 350 kg, and polyvinyl alcohol and sodium alginate are formulated into a solution at a mass ratio of 50:1; (3) 0.5 kg of carbonized The dry powder of the thalline was added i...

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Abstract

The invention discloses a fixed microbe rubber granule filler which comprises rubber granules as carriers, embedding medium and microbe enzyme preparation for providing microbes, wherein the rubber granules can mutually act with the embedding medium and the microbe enzyme preparation to form composite macromolecular gel, microbes in the microbe enzyme preparation are embedded in a gel network to form the fixed microbe rubber granule filler. The invention further discloses a preparation process of fixed microbe rubber granule filler and an application thereof in sewage treatment. As adding polyvinyl alcohol and the microbe enzyme preparation in the rubber granules, the fixed microbe rubber granule filler has light weight than common rubber granules, and is easy to form circulating fluidization state in a biological reactor, and enables sewage to fully contact with the fixed microbe filler, and the stability of a biological film is excellent.

Description

technical field [0001] The invention relates to an immobilized microbial rubber particle filler, and also relates to a preparation method and application of the immobilized microbial rubber particle filler. Background technique [0002] Immobilized microbial technology is a new type of biotechnology that uses chemical or physical means to locate free cells in a limited space area and keep them active, and can be used repeatedly and continuously. The use of immobilized microorganism technology in sewage treatment is conducive to increasing the concentration of microorganisms in the bioreactor, and is also conducive to the separation of solid and liquid after the reaction, and is also conducive to the removal of nitrogen or removal of high-concentration organic matter or certain refractory substances, so it is A promising sewage treatment technology with high efficiency, low consumption, easy operation and management. At present, it is generally believed that immobilized micr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L21/00C08L23/08C08L29/04C08L89/00C08L5/04C08K3/04C08J3/24C08J3/075C02F3/00C02F3/34
Inventor 滕济林李若征丁绍峰樊兆世
Owner BEIJING GUODIAN FUTONG SCI & TECH DEV
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