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A kind of immobilized microbial carrier filler and preparation method thereof

A technology for immobilizing microorganisms and carriers, applied to chemical instruments and methods fixed on or in inorganic carriers, fixed on/in organic carriers, etc., can solve the problem of poor solid-liquid separation effect and batch processing operation The method is not suitable for engineering applications and other problems, so as to achieve the effect of easy and tight adhesion, increased porosity and specific surface area, and conducive to nutritional balance

Active Publication Date: 2021-11-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can improve the treatment efficiency by adding dominant salt-tolerant bacteria to the saline wastewater, its solid-liquid separation effect is poor, and the operation mode of batch treatment is not suitable for engineering applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Firstly, the main material, slow-release agent, and nutritional bacteria agent are mixed and kneaded, and the mass ratios of the main material, slow-release agent, and nutritional bacteria agent are respectively 70%, 10% and 20%, and then the immobilized Microbial carrier filler; the nutritional bacteria agent is prepared by the following method: preparing an aqueous solution containing industrial starch, hydroxyapatite, chitosan, and sodium acetate, heating the starch to gelatinize it into a colloidal state, and cooling to 20-40°C, Mix high-efficiency salt-tolerant bacterial agents to obtain nutritional bacterial agents; the mass contents of industrial starch, hydroxyapatite, chitosan and sodium acetate in the aqueous solution are 20%, 2%, 3% and 5% respectively, and the salt-resistant The mass ratio of the added amount of the bacterial agent to the aqueous solution is 1:5, and the salt-tolerant bacterial agent is a commercially available high-efficiency salt-tolerant b...

Embodiment 2

[0026] First, the main material, slow-release agent, and nutrient bacterial agent are mixed and kneaded, and the mass ratios of the main material, sustained-release agent, and nutrient bacterial agent are 50%, 25%, and 25% respectively, and then the immobilized Microbial carrier filler; the nutritional bacteria agent is prepared by the following method: preparing an aqueous solution containing industrial starch, hydroxyapatite, chitosan, and sodium acetate, heating the starch to gelatinize it into a colloidal state, and cooling to 20-40°C, Mix high-efficiency salt-tolerant bacterial agents to obtain nutritional bacterial agents; the mass contents of industrial starch, hydroxyapatite, chitosan and sodium acetate in the aqueous solution are 15%, 5%, 8% and 10% respectively, and the salt-resistant The mass ratio of the added amount of the bacterial agent to the aqueous solution is 1:10, and the salt-tolerant bacterial agent is a highly efficient salt-tolerant bacterial agent with ...

Embodiment 3

[0030] First, the main material, slow-release agent, and nutrient bacterial agent are mixed and kneaded, and the mass ratios of the main material, sustained-release agent, and nutrient bacterial agent are 60%, 20%, and 20% respectively, and then the immobilized Microbial carrier filler; the nutritional bacteria agent is prepared by the following method: preparing an aqueous solution containing industrial starch, hydroxyapatite, chitosan, and sodium acetate, heating the starch to gelatinize it into a colloidal state, and cooling to 20-40°C, Mix high-efficiency salt-tolerant bacterial agents to obtain nutritional bacterial agents; the mass contents of industrial starch, hydroxyapatite, chitosan, and sodium acetate in the aqueous solution are 18%, 2.5%, 5.5% and 7.5%, respectively, and salt-tolerant The mass ratio of the added amount of the bacterial agent to the aqueous solution is 1.5:10, and the salt-tolerant bacterial agent is a commercially available high-efficiency salt-tole...

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Abstract

The invention discloses a preparation method of an immobilized microbial carrier filler. 50-70% of main ingredients, 10-25% of slow-release agent, and 15-25% of nutrient bacterial agent, and then solidified to obtain immobilized microbial carrier filler. The carrier filler prepared by the method is especially suitable for the biochemical treatment of salt-containing wastewater, which can rapidly start and grow high-efficiency salt-tolerant bacteria, and maintain its high activity stability for a long time.

Description

technical field [0001] The invention relates to an immobilized microbial carrier filler and a preparation method thereof, in particular to an immobilized microbial carrier filler based on a slow-release nutritional inorganic carrier loaded with a high-salt-resistant bacterial agent and a preparation method thereof. Background technique [0002] In the traditional activated sludge treatment process, microorganisms usually grow in suspension in water, so there are problems such as low effective concentration of degrading bacteria in the system and easy loss of bacteria. The traditional biofilm treatment process also has problems such as slow startup, slow biofilm growth, and poor treatment efficiency when treating toxic and refractory wastewater. [0003] The deficiencies of traditional biological processes can be made up for by immobilizing microorganisms. This technology can fix the dominant microorganisms on the carrier or locate them in a limited space area through physic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C12N11/10C12N11/02C12N11/14C12N11/08
Inventor 张蕾郭宏山李宝忠马传军陈天佐
Owner CHINA PETROLEUM & CHEM CORP
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