Low-temperature denitrification pseudomonas veronii strain and application thereof

The invention discloses a low-temperature denitrification pseudomonas veronii strain and application thereof, belongs to the technical field of environmental biology, and relates to a pseudomonas veronii strain and application thereof. The invention aims to screen out a strain which can adapt to operation of a reactor under a low-temperature condition and has denitrification capacity, so that the denitrification capacity of a sewage treatment plant under a cold condition in the north is improved. Pseudomonas veronii TN-1 is collected in the China General Microbiological Culture Collection Center (CGMCC), the collection address is No.3, yard 1, Beichen West Road, Chaoyang District, Beijing, the collection date is October 9, 2022, and the collection number is CGMCC No.25880. The invention further discloses a method for preparing the veronii virus vaccine. The veronii virus vaccine is prepared from the veronii virus vaccine, the veronii virus vaccine, the veronii virus vaccine, the veronii virus vaccine, the ver