Biological Nitrogen Removal Database

Pseudomonas tolaasii strain Y-11

• Phylum : Proteobacteria
• Class : Gammaproteobacteria
• Order :Pseudomonadales
• Family : Pseudomonadaceae
• Genus : Pseudomonas

NO₃^-,NO₂^-

nan

Reference:He et al., 2016

Title:Heterotrophic Nitrification and Aerobic Denitrification by Pseudomonas Tolaasii Y-11 Without Nitrite Accumulation During Nitrogen Conversion

Pubmed ID:26519702

Pubmed link:Link

Full research link:Link

Abstract: A hypothermia aerobic nitrite-denitrifying bacterium, Pseudomonas tolaasii strain Y-11, was found to display high removal capabilities for heterotrophic nitrification with ammonium and for aerobic denitrification with nitrate or nitrite nitrogen. When strain Y-11 was cultivated for 4 days at 15 °C with the initial ammonium, nitrate and nitrite nitrogen concentrations of 209.62, 204.61 and 204.33 mg/L (pH 7.2), the ammonium, nitrate and nitrite removal efficiencies were 93.6%, 93.5% and 81.9% without nitrite accumulation, and the corresponding removal rates reached as high as 2.04, 1.99 and 1.74 mg/L/h, respectively. Additionally, ammonium was removed mainly during the simultaneous nitrification and denitrification process. All results demonstrate that P. tolaasii strain Y-11 has the particularity to remove ammonium, nitrate and nitrite nitrogen at low temperatures, which guarantees it for future application in winter wastewater treatment.