Providencia sp. 2D capable of highly efficiently degrading dibutyl phthalate (DBP)

The invention specifically discloses a Providencia sp. 2D capable of highly efficiently and thoroughly degrading DBP, which belongs to the technical field of biological treatment of environmental pollutants. The Providencia sp. 2D is preserved in China Center for Type Culture Collection (CCTCC) on January 22, 2015, with an accession number of CCTCC M2015057. The Providencia sp. 2D has degradation efficiency of more than 80% to high-concentration DBP (1000 mg/L) in 72 h and can almost thoroughly degrade low-concentration DBP (200 mg/L). The Providencia sp. 2D can also degrade the intermediate product--phthalic acid of DBP and eventually thoroughly mineralize DBP, has high-efficiency DBP degrading capability, greatly supplements a database of DBP degrading bacteria, has the characteristics of fast growth speed, simple culture, strong adaptive capacity and small possibility of mutation, and has good application prospects.