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A kind of microbial inoculum and its preparation method and application

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

Inactive Publication Date: 2019-05-03
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 long time, and the treatment efficiency is unstable and the impact resistance is poor

Method used

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  • A kind of microbial inoculum and its preparation method and application
  • A kind of microbial inoculum and its preparation method and application
  • A kind of microbial inoculum and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The present invention removes ammonia nitrogen in laboratory simulated industrial waste water (pH adjusted to about 7.5; main components include NH4Cl, molasses, yeast extract, glucose, soluble starch, other inorganic salts, etc.). The bacterial agent is added to the SBR process according to the predetermined cycle, and the system is operated at 35°C. As a result, for the SBR system that is about to collapse (influent ammonia nitrogen is about 70mg / L, effluent ammonia nitrogen is about 20mg / L, and the removal rate is about 71%), after adding bacteria for one month and operating the system according to the predetermined parameters, the system maintains stability. In the case of about 70mg / L of ammonia nitrogen in the influent. Through the addition of bacterial agents, the ammonia nitrogen in the effluent is reduced to about 3mg / L, and the treatment rate reaches 96%.

Embodiment 2

[0059] Adopt the present invention to remove the ammonia nitrogen of laboratory simulated industrial waste water (same as embodiment 1). The bacterial agent is added to the A / O process according to the predetermined cycle, and the system is operated at 35°C. As a result, for the A / O system that is not running well (the influent ammonia nitrogen is about 70mg / L, the effluent ammonia nitrogen is about 15mg / L, and the removal rate is about 79%), the system is operated according to the predetermined parameters, and the system is maintained after one month of bacterial agent addition. After stabilization, in the case of about 70mg / L of ammonia nitrogen in the influent. With the addition of bacterial agents, the effluent drops to about 2mg / L, and the treatment rate reaches 97%.

Embodiment 3

[0061] Adopt the present invention to the printing and dyeing wastewater of Jiangnan University Textile and Garment College (pre-adjusted pH is 6.5~8.5; main components: dyestuff, surfactant, polyvinyl alcohol, add appropriate amount of molasses, yeast extract, glucose, NH4Cl and other inorganic salts simultaneously Ammonia nitrogen that meets the necessary nutrients for microorganisms) is removed. The bacterial agent is added to the A / O process according to the predetermined cycle, and the system is operated at 35°C. As a result, for the A / O system that is not running well (the influent ammonia nitrogen is about 70mg / L, the effluent ammonia nitrogen is about 25mg / L, and the removal rate is about 64%), the system is operated according to the predetermined parameters, and the system is maintained after one month of bacterial agent addition. After stabilization, in the case of about 70mg / L of ammonia nitrogen in the influent. With the addition of bacterial agents, the effluent ...

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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 water shortage. 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 to use microbial metabolism to remove pollutants in water, and finally turn them into H2O, N2, CO2, etc.; compared with physical and chemical methods, it eliminates ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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