Skip to main navigation Skip to search Skip to main content

Influence of influent pH value on nitrite accumulation in a biological aerated filter (BAF)

  • Junjun Wu
  • , Liping Qiu*
  • , Yongzheng Liu
  • , Chunhui Guo
  • , Shoubin Zhang
  • , Xuedong Zhai
  • , Jun Ma
  • *Corresponding author for this work
  • University of Jinan
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Influence of the pH value of influent on the nitrite accumulation was investigated in a biological aerated filter (BAF) operated in normal conditions. The removal efficiency of ammonia nitrogen and the performance of nitrite accumulation in the BAF were also discussed. The results showed that the ammonia nitrogen removal in BAF was heavily influenced by the influent pH value. Drastically fluctuating of the influent pH value was not conducive to the removal of ammonia nitrogen but beneficial to the nitrogen accumulation. It was found that the continuous rising of pH value could hinder the activity of ammonia oxidizing bacteria to adapt alkaline environment, and there were approximately 77.2% and 88% of ammonia nitrogen were removed in the middle and the upper part of filter bed respectively. It was considered that the nitrite accumulation could be induced in BAF by simply adjusting the influent pH value, but the situation of a long-term and stable formation of nitrite accumulation would get out of hand, at the same time, the removal efficiency of ammonia nitrogen would not high and unstable.

Original languageEnglish
Title of host publication2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011 - Proceedings
Pages7433-7436
Number of pages4
DOIs
StatePublished - 2011
Event2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011 - Inner Mongolia, China
Duration: 15 Jul 201117 Jul 2011

Publication series

Name2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011 - Proceedings

Conference

Conference2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011
Country/TerritoryChina
CityInner Mongolia
Period15/07/1117/07/11

Keywords

  • Ammonia nitrogen
  • BAF
  • Nitrite accumulation
  • pH value

Cite this