Heterotrophic nitrifying aerobic denitrifying Acinetobacter and applications thereof

Abstract

The present invention discloses a heterotrophic nitrifying aerobic denitrifying Acinetobacter and applications thereof, wherein the heterotrophic nitrifying aerobic denitrifying Acinetobacter is Acinetobacter sp. YN-3, has the preservation number of CGMCC No.11366, and can be used for nitrogen-containing water body denitrification. According to the present invention, the Acinetobacter sp. YN-3 can simultaneously resist streptomycin and tetracycline; the heterotrophic nitrifying performance determination results show that the Acinetobacter sp. YN-3 can highly remove ammonia nitrogen while the accumulation of the intermediate products such as nitrate and nitrite is little; and the aerobic denitrifying performance determination results show that the Acinetobacter sp. YN-3 can well remove the nitrate nitrogen, the residual nitrite accumulation is low, and no secondary pollution is generated.

Description

technical field

[0001] The invention belongs to the field of environmental microorganisms, and in particular relates to a heterotrophic nitrifying aerobic denitrifying Acinetobacter and application thereof. Background technique

[0002] The rapid development of industry and agriculture and human production activities have brought serious pollution to the water environment. Excessive nitrogen source is the most common type of pollution in water pollution. It causes eutrophication in water, leading to algae blooms, reduced dissolved oxygen in water, and black water. It not only endangers human water safety, but also seriously affects the ecology of water. balance. Excessive discharge of nitrogen sources will destroy the nitrogen balance and cause the water body to lose its self-purification function. Therefore, nitrogen-rich sewage needs to be denitrified before it can be discharged into the natural environment.

[0003] Nitrogen exists in water mainly in two forms: organic ...

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