A Bacillus cereus strain with high environmental adaptability for nitrification and denitrification, microbial agent and application thereof

By cultivating a highly environmentally adaptive Bacillus cereus HCCN1, the strain has heterotrophic nitration and aerobic denitrification functions, solving the problem that Bacillus cereus in the prior art is difficult to adapt to the harsh water environment, achieving efficient removal of nitrogen and phosphorus in aquaculture wastewater, and meeting the sustainable development needs of aquaculture.

CN119552786BActive Publication Date: 2025-05-02GUANGZHOU UNIVERSITY
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Patent Information

Application Number
CN202510128130.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-05-02
Estimated Expiration
2045-02-05

AI Technical Summary

Technical Problem

In the prior art, Bacillus cereus is difficult to adapt to the harsh aquaculture water environment and cannot efficiently remove nitrogen and phosphorus in aquaculture wastewater at the same time, which limits its application in aquaculture.

Method used

A highly environmentally adaptive Bacillus cereus HCCN1 strain was screened and cultivated. This strain has heterotrophic nitration and aerobic denitrification functions, and can efficiently degrade nitrogen and phosphorus under a wide range of pH, temperature and salinity conditions.

Benefits of technology

This strain can efficiently degrade NH4+-N, NO3-N, NO2-N and PO43-P under a variety of harsh environmental conditions, significantly improving the purification effect of aquaculture water bodies and meeting the needs of efficient, healthy and sustainable aquaculture.

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Abstract

The invention belongs to the technical field of microorganisms and aquaculture, and discloses a Bacillus cereus strain with high environmental adaptability for nitrification and denitrification, a microbial agent and its application. Bacillus cereus HCCN1 was deposited in the Guangdong Provincial Microbial Strain Collection Center on November 13, 2024, with a deposit number of GDMCC No: 65477. The present invention also discloses a microbial agent comprising the strain HCCN1 as an active ingredient and its application. The strain HCCN1 of the present invention has high stress resistance and high environmental adaptability, and has heterotrophic nitrification and aerobic denitrification functions. It can efficiently degrade nitrogen and phosphorus under harsh environmental conditions such as a wide pH range, temperature range, and high salt and alkali concentrations, and purify aquaculture water bodies. It has high biosafety and can meet the industry needs of efficient, healthy and sustainable aquaculture.
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