Microbial agent and preparation method thereof, and application of microbial agent in sewage treatment

Abstract

The invention discloses a microbial agent and a preparation method thereof, and application of the microbial agent in sewage treatment, belonging to the technical field of environmental protection and microorganisms. The microbial agent is a granular solid, the particle of the microbial agent is of a layered structure, and the microbial agent comprises a core, a support layer and a light layer from inside to outside, wherein each of the core and the support layer comprises a porous carbon material, a biological carbon source, a starch adhesive, a carbon sponge and a composite microbial liquid respectively, and the light layer comprises a porous carbon material, a biological carbon source, a starch adhesive and a carbon sponge. According to the preparation method, one-step forming is adopted, so the preparation steps of the granular solid material needing to be in the form of a layered structure are simplified to a great extent; and through cooperation with parameters of the steps of programmed cold / heat treatment and the like, the microbial agent provided by the invention can also solve problems existing in the structure of the solid microbial agent on the basis that the preparation method is simplified. The microbial agent is stable in structure and high in ammonia nitrogen removal efficiency.

Description

technical field

[0001] The invention relates to the field of environmental protection and microorganism technology, in particular to a microbial agent, a preparation method thereof and an application in sewage treatment. Background technique

[0002] Sewage treatment is the process of purifying sewage to make it meet reuse or discharge standards. With the increasingly severe global environment and resource situation, the existing sewage treatment technology is gradually unable to meet the social development process and pursue the principle of sustainable development. demand. At present, common methods of sewage treatment include traditional physical methods, chemical methods and new biological methods. Physical methods are the most environmentally friendly and energy-saving, but there must be problems with weak purification capabilities. Chemical methods also have defects such as high cost and high requirements. It is favored by people. However, because most of the traditio...

Examples

Embodiment 1

[0037] Embodiment 1 prepares microbial bacterial agent:

[0038] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0039] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0040] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0041] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) is wheat bran; the biological carbon source is in powder form with a particle size of 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder form with a particle size of 0.2-0.5mm. The mass ...

Embodiment 2

[0050] Embodiment 2 prepares microbial bacterial agent:

[0051] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0052] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0053] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0054] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) includes bran and straw, and the mass ratio of the two is 3:1; the biological carbon source is in powder form, and the particle size is 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder ...

Embodiment 3

[0063] Embodiment 3 prepares microbial bacterial agent:

[0064] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0065] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0066] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0067] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) includes bran and straw, and the mass ratio of the two is 3:1; the biological carbon source is in powder form, and the particle size is 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder ...

technical field

[0001] The invention relates to the field of environmental protection and microorganism technology, in particular to a microbial agent, a preparation method thereof and an application in sewage treatment. Background technique

[0002] Sewage treatment is the process of purifying sewage to make it meet reuse or discharge standards. With the increasingly severe global environment and resource situation, the existing sewage treatment technology is gradually unable to meet the social development process and pursue the principle of sustainable development. demand. At present, common methods of sewage treatment include traditional physical methods, chemical methods and new biological methods. Physical methods are the most environmentally friendly and energy-saving, but there must be problems with weak purification capabilities. Chemical methods also have defects such as high cost and high requirements. It is favored by people. However, because most of the traditio...

Examples

Embodiment 1

[0037] Embodiment 1 prepares microbial bacterial agent:

[0038] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0039] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0040] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0041] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) is wheat bran; the biological carbon source is in powder form with a particle size of 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder form with a particle size of 0.2-0.5mm. The mass ...

Embodiment 2

[0050] Embodiment 2 prepares microbial bacterial agent:

[0051] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0052] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0053] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0054] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) includes bran and straw, and the mass ratio of the two is 3:1; the biological carbon source is in powder form, and the particle size is 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder ...

Embodiment 3

[0063] Embodiment 3 prepares microbial bacterial agent:

[0064] (1) Mix the porous carbon material, biological carbon source, starch adhesive, and carbon sponge evenly, add sterile water, mix evenly, let stand, granulate, and dry;

[0065] (2) The particles obtained in step (1) are soaked in the compound microbial bacterial liquid;

[0066] (3) The granules obtained in step (2) are taken out and subjected to programmed cold / heat treatment to obtain solid granular microbial bacterial agents.

[0067] The porous carbon material in step (1) is bamboo charcoal powder. The biological carbon source in step (1) includes bran and straw, and the mass ratio of the two is 3:1; the biological carbon source is in powder form, and the particle size is 150-200 mesh. The starch adhesive in step (1) includes composite starch adhesive or modified starch adhesive, etc., and the main component is starch or modified starch, purchased from the market. The carbon sponge in step (1) is in powder ...

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