Efficient detoxication of hydroxylamine and nitrite through heterotrophic nitrification and aerobic denitrification by Acinetobacter johnsonii EN-J1.

ABSTRACT: The co-existence of hydroxylamine (NH₂OH) and nitrite (NO₂ ^--N) can aggravate the difficulty of wastewater treatment. The roles of hydroxylamine (NH₂OH) and nitrite (NO₂ ^--N) in accelerating the elimination of multiple nitrogen sources by a novel isolated strain of Acinetobacter johnsonii EN-J1 were investigated in this study. The results demonstrated that strain EN-J1 could eliminate 100.00% of NH₂OH (22.73 mg/L) and 90.09% of NO₂ ^--N (55.32 mg/L), with maximum consumption rates of 1.22 and 6.75 mg/L/h, respectively. Prominently, the toxic substances NH₂OH and NO₂ ^--N could both facilitate nitrogen removal rates. Compared with the control treatment, th

SUBMITTER: Zhang M 

PROVIDER: S-EPMC10149794 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature