Effect of NO₂^--N Concentration on Denitrifying Phosphorus Accumulating of Nitrosation Denitrifying Phosphorus Accumulating Organisms

Abstract:

Separating NDPAOs from the continuous flow double sludge nitrosation denitrifying phosphorus removal system, purifying and preliminary identifying them, discussing the effect of NO₂^--N concentration on the performance of denitrifying phosphorus accumulating of NDPAOs by the way of pure training. The results showed that the identified organism Veillonella could treat NO₂^--N as electronic receptors when the NO₂^--N concentration was 60mg/L; when the NO₂^--N concentration raised to 65mg/L, phosphorus accumulating was not normal; the denitrifying was abnormal while the NO₂^--N concentration further raised to 70mg/L; when the NO₂^--N concentration was 80mg/L, characteristics of phosphorus uptake and denitrifying had suffered serious inhibition.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 981-986
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.981
• Online since: September 2013
• Authors: Li Cheng Zhang, Chun Rong Wu, Qiang Liu, Yang Yu, Xiao Wei Liu
• Keywords: Anoxic Phosphorus Uptake, Denitrifying Phosphorus Accumulating, Nitrite, Nitrosation Denitrifying Phosphorus Accumulating Organisms

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