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Alicyclobacillus aeris for degrading anionic surfactant and application

A surfactant and bacillus technology, applied in the direction of bacteria, microorganism isolation, and microorganism-based methods, can solve the problems of microbial proliferation, secondary pollution, and expensive membrane prices, and achieve good degradation, high degradation efficiency, and degradation fast speed effect

Active Publication Date: 2021-07-27
中重能(南通)新能源有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Membrane filtration technology has high separation efficiency and simple process, but the membrane is expensive and easy to clog
The chemical flocculation method has a certain treatment effect on anionic surfactants, but in the process of treatment, calcium oxide is needed as a coagulant aid, and waste residue and sludge will be generated, and improper treatment will cause secondary pollution
The investment and operation cost of microbial treatment is low, but its application conditions and alternative microorganisms are limited, and low concentrations of anionic surfactants will cause microbial proliferation, and high concentrations of anionic surfactants will inhibit biological growth.

Method used

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  • Alicyclobacillus aeris for degrading anionic surfactant and application
  • Alicyclobacillus aeris for degrading anionic surfactant and application
  • Alicyclobacillus aeris for degrading anionic surfactant and application

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Embodiment Construction

[0019] The implementation cases of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed.

[0020] 1. Screening and identification of strains

[0021] The strain method for screening efficient degradation of anionic surfactant pollutants in domestic sewage comprises the following steps:

[0022] 1. Isolation of strains

[0023] (1) Take by weighing 1g of sludge sample and vibrate in a conical flask containing 9ml sterile water to obtain a suspension;

[0024] (2) Inoculate 10ml of the suspension respectiv...

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Abstract

The invention discloses an alicyclobacillus aeris for degrading an anionic surfactant. The alicyclobacillus aeris is alicyclobacillus aeris A-YW and is preserved in the China Center for Type Culture Collection (CCTCC) on April 25, 2021, the strain preservation number of the alicyclobacillus aeris is CCTCC M 2021451, and the preservation address of the alicyclobacillus aeris is Luojia mountain on bayi road of Wuchang District, Wuhan City, Hubei Province. According to the invention, the sludge collected from a sewage outlet of a detergent manufacturer is separated to obtain alicyclobacillus aeris A-YW, an anionic surfactant degradation test shows that the strain has a good degradation effect on anionic surface activity; the strain is an environment-friendly strain with potential significance in sewage treatment, and the method has the characteristics of high degradation efficiency, high degradation rate and the like, and provides help for environmental protection in China.

Description

technical field [0001] The invention belongs to the field of biotechnology, and relates to a bacterial strain used for environmental protection, in particular to Alicyclobacillus aeris strain A-YW (Alicyclobacillus aeris) and its application in degrading anionic surfactants in domestic sewage. Background technique [0002] Surfactants in domestic sewage mainly include anionic surfactants such as sodium stearate, sodium dodecylbenzene sulfonate and octylphenol epoxy in soap for washing clothes, washing powder and washing dishes and chopsticks. Substances such as ethane polymers. In recent years, with the continuous improvement of people's living standards and the continuous increase of population, a large amount of sewage in daily life has been discharged into water bodies in different ways, causing different degrees of pollution to river water sources. Among them, anionic surfactants in sewage have great impact on river environment pollution has aroused widespread concern. ...

Claims

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Application Information

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IPC IPC(8): C12N1/20C12N1/02C02F3/34C12R1/01
CPCC12N1/20C12N1/02C02F3/34
Inventor 李阳
Owner 中重能(南通)新能源有限公司
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