Heterotrophic nitrification-aerobic denitrification bacteria as well as culture method and application thereof

The invention discloses heterotrophic nitrification-aerobic denitrification bacteria. The heterotrophic nitrification-aerobic denitrification bacteria are characterized in that the heterotrophic nitrification-aerobic denitrification bacteria are pseudomonas stutzeri XN9, are preserved in the Guangdong Microbial Culture Collection Center on March 25, 2019, and have a preservation number of GDMCC No:60532. The heterotrophic nitrification-aerobic denitrification bacteria have efficient HN-AD denitrification performance, hardly accumulate intermediate metabolites, and have a wide application prospect in the field of treatment of high-C/N NO3-N and NO2-N wastewater and high-concentration NH4-N and NO3-N wastewater. 本发明公开了一种异养硝化-好氧反硝化菌，其特征在于，所述异养硝化-好氧反硝化菌菌株为施氏假单胞菌XN9(Pseudomonas stutzeri XN9)，保藏于广东省微生物菌种保藏中心，保藏时间为2019年3月25日，保藏编号为GDMCC No：60532。该菌株具有高效的HN-AD脱氮性能，几乎不积累中间代谢物，在处理高C/N的NO3--N和NO2--N废水和高浓度NH4+-N和NO3--N废水领域具有广阔的应用前景。