Microbial agent and preparation method and application thereof

A technology of microbial agent and microbacteria, which is applied in the field of sewage biological treatment in environmental protection projects, can solve the problems of unstable treatment efficiency, long time for natural sludge cultivation and domestication, poor impact resistance, etc., and achieve simple and efficient storage, transportation and delivery , Excellent impact resistance effect

Active Publication Date: 2016-08-10
ZHEJIANG HUAQINGYUAN BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sewage treatment system uses natural sludge to cultivate and acclimate for a lo

Method used

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  • Microbial agent and preparation method and application thereof
  • Microbial agent and preparation method and application thereof
  • Microbial agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] Example 1:

[0057] Using the present invention to simulate industrial wastewater in the laboratory (adjust the pH to about 7.5; the main component is NH 4 Cl, molasses, yeast extract, glucose, soluble starch, other inorganic salts, etc.) are removed. Add the microbial agents to the SBR process in a predetermined cycle, and run the system at 35°C. Results For the SBR system that is about to collapse (the influent ammonia nitrogen is about 70mg / L, the effluent ammonia nitrogen is about 20mg / L, and the removal rate is about 71%), after one month of bacterial agent addition, the system is operated according to the predetermined parameters and the system is stable. In the case of influent ammonia nitrogen about 70mg / L. Through the addition of bacteria, the effluent ammonia nitrogen is reduced to about 3mg / L, and the removal rate reaches 96%.

Example Embodiment

[0058] Example 2:

[0059] The invention is used to remove ammonia nitrogen in laboratory simulated industrial wastewater (same as Example 1). Add the inoculants to the A / O process in a predetermined cycle, and run the system at 35°C. As a result, for the A / O system that didn’t work well (the influent ammonia nitrogen was about 70mg / L, the effluent ammonia nitrogen was about 15mg / L, and the removal rate was about 79%), the system was operated according to the predetermined parameters, and the system was maintained through the addition of bacteria for one month. After stabilization, in the case of influent ammonia nitrogen of about 70mg / L. Through the addition of bacteria, the effluent drops to about 2mg / L, and the removal rate reaches 97%.

Example Embodiment

[0060] Example 3:

[0061] The invention is used to treat the printing and dyeing wastewater of Jiangnan University's Textile and Clothing College (pre-adjusted pH to 6.5-8.5; main components: dyes, surfactants, polyvinyl alcohol, and at the same time add appropriate amounts of molasses, yeast extract, glucose, NH 4 Cl and other inorganic salts to meet the nutrients necessary for microorganisms) to remove ammonia nitrogen. Add the inoculants to the A / O process in a predetermined cycle, and run the system at 35°C. As a result, for the A / O system that didn’t work well (the influent ammonia nitrogen was about 70mg / L, the effluent ammonia nitrogen was about 25mg / L, the removal rate was about 64%), the system was operated according to the predetermined parameters, and the system was maintained after one month of inoculation After stabilization, in the case of influent ammonia nitrogen of about 70mg / L. With the addition of bacteria, the effluent drops to about 5mg / L, and the removal r...

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Abstract

The invention provides a microbial agent and a preparation method and application thereof. The microbial agent comprises the ingredients: Microbacterium sp. CICC 23615, Pseudomonas denitrificans CCTCC M91003, Deinococcus sp. CICC 10697, Bacillus sp. CICC 21937, Pichia pastoris ACCC 21021, and Aspergilus flavus CGMCC 3.2823. The microbial agent provided herein can remove ammonia and nitrogen in wastewater effectively in a biological treatment stage, up to about 97% in removal rate; in early startup stage of a system or in case of unstable operation, the microbial agent has excellent impact resistance. The microbial agent is free of pathogens, heavy metals and toxic and harmful chemicals, and solid products of the microbial agent are nontoxic and nonirritating.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment in environmental protection engineering, and in particular relates to a microbial agent and a preparation method thereof, and the application of the microbial agent to effectively remove ammonia nitrogen in sewage. Background technique [0002] my country is a country with a shortage of water resources. With the development of industry, the acceleration of urbanization and the expansion of population, the situation of water pollution continues to intensify, and water resources are facing more and more severe challenges. Biological treatment of sewage, as an economical and effective water treatment method, has been widely used in the treatment of industrial sewage, domestic sewage, rivers and lakes. Biological sewage treatment is the use of microbial metabolism to remove pollutants in water and finally turn them into H 2 O, N 2 , CO 2 Etc. Compared with physical and chemical...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N1/16C12N1/14C02F3/34C12R1/01C12R1/38C12R1/07C12R1/84C12R1/67
CPCC02F3/34C02F3/347C02F3/348C12N1/14C12N1/16C12N1/20
Inventor 夏海锋李子武朱胜杰
Owner ZHEJIANG HUAQINGYUAN BIOTECH CO LTD
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