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Preparation method of composite biological filler for spiral groove

A technology of spiral groove and biological filler, which is applied in the field of preparation of spiral groove composite biological filler, can solve the problems of poor dispersion, poor adsorption performance, poor stability, etc., and achieve increased mixing degree, good adsorption performance, and good dispersion. Effect

Active Publication Date: 2015-04-22
四川凯尔工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current immobilized microbial materials generally have the characteristics of poor stability, poor adsorption performance, and poor dispersibility.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Take the coconut shell, crush it, pulverize it with a superfine pulverizer and refine it with a superfine pulverizer to obtain powder particles with a particle size of about 200 mesh, and set aside;

[0022] (2) Weigh 100 parts by mass of vermiculite, crush it with a pulverizer and sieve it to obtain vermiculite powder with a particle size of less than 200 mesh, put it in a muffle furnace, and raise the temperature to 300°C at a heating rate of 10°C / min After cooling to room temperature naturally, soak 50 parts by mass of 2-pyrrolidone-5-sodium carboxylate for 5 hours to form a solid-liquid mixture, then add dehydrated ethanol to it and stir evenly, and then drop it into the above-mentioned solid-liquid mixture at 30°C Add 5 parts by mass of silver nitrate solution with a concentration of 1 mol / L, stir while adding it dropwise, then leave it to stand for 2 hours and then centrifuge, take out the solid matter, wash it 3 times with absolute ethanol, and then place the ...

Embodiment 2

[0033] (1) Take the coconut shell, crush it, pulverize it with a superfine pulverizer and refine it with a superfine pulverizer to obtain powder particles with a particle size of about 200 mesh, and set aside;

[0034] (2) Weigh 100 parts by mass of vermiculite, crush it with a pulverizer and sieve it to obtain vermiculite powder with a particle size of less than 200 mesh, put it in a muffle furnace, and raise the temperature to 300°C at a heating rate of 10°C / min After cooling to room temperature naturally, soak 50 parts by mass of 2-pyrrolidone-5-sodium carboxylate for 5 hours to form a solid-liquid mixture, then add dehydrated ethanol to it and stir evenly, and then drop it into the above-mentioned solid-liquid mixture at 30°C Add 5 parts by mass of silver nitrate solution with a concentration of 1 mol / L, stir while adding it dropwise, then leave it to stand for 2 hours and then centrifuge, take out the solid matter, wash it with absolute ethanol for 3 to 5 times, then place...

Embodiment 3

[0045] (1) Take the coconut shell, crush it, pulverize it with a superfine pulverizer and refine it with a superfine pulverizer to obtain powder particles with a particle size of about 200 mesh, and set aside;

[0046] (2) Weigh 100 parts by mass of vermiculite, crush it with a pulverizer and sieve it to obtain vermiculite powder with a particle size of less than 200 mesh, put it in a muffle furnace, and raise the temperature to 300°C at a heating rate of 10°C / min After cooling to room temperature naturally, soak 50 parts by mass of 2-pyrrolidone-5-sodium carboxylate for 5 hours to form a solid-liquid mixture, then add dehydrated ethanol to it and stir evenly, and then drop it into the above-mentioned solid-liquid mixture at 30°C Add 5 parts by mass of silver nitrate solution with a concentration of 1 mol / L, stir while adding it dropwise, then leave it to stand for 2 hours and then centrifuge, take out the solid matter, wash it with absolute ethanol for 3 to 5 times, then place...

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Abstract

The invention discloses a preparation method of composite biological filler for a spiral groove. The preparation method comprises the following steps of 1, smashing a coconut shell to form powder; 2, preparing carboxyl-hydroxyl-silver modified vermiculite powder; 3, mixing powdered activated carbon, granular activated carbon and zeolite powder according to a certain ratio; 4, preparing a spherical filler carrier for the spiral groove; 5, preparing a mixed bacterium suspension; 6, placing the mixed bacterium suspension into a vessel, diluting the mixed bacterium suspension by using deionized water until the pH value of the mixed solution is neutral, and adding polyvinyl alcohol to form a mixed solution; and 7, smearing the mixed solution in the spiral groove of the spherical filler carrier for the spiral groove to obtain the composite biological filler for the spiral groove. The composite biological filler for the spiral groove, prepared by using the method, is better in biofilm formation performance, adsorptivity and stability, incapable of influencing the normal growth of microorganisms and capable of favorably removing ammonia nitrogen, nitrate nitrogen and organisms in a water body.

Description

technical field [0001] The invention relates to a preparation method of a spiral groove composite biological filler, which belongs to the field of environmental protection. Background technique [0002] Currently used sewage treatment methods include chemical, physical and biological methods. The use of microorganisms to treat polluted water bodies is a hot research direction in the field of water treatment today, and it is also a green, efficient, and non-secondary pollution treatment method. Among them, the biofilm method is to hang a film on the surface of the filler to degrade the pollutants in the sewage through the microbial group on the biofilm. The biofilm method occupies a small area and has high efficiency. However, due to fluctuations in sewage fluidity and water quality, the added microorganisms are easily lost or preyed on by protozoa, making it difficult to maintain a stable and continuous removal effect. The immobilized microorganism is to embed the dominan...

Claims

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Application Information

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IPC IPC(8): C02F3/00C12N11/10C12N11/08C12R1/07C12R1/085C12R1/865C12R1/01
CPCC02F3/00C02F2003/001C02F2305/06C12N11/08C12N11/10
Inventor 叶澄
Owner 四川凯尔工程技术有限公司
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