International Journal of
Water Resources and Environmental Engineering

  • Abbreviation: Int. J. Water Res. Environ. Eng.
  • Language: English
  • ISSN: 2141-6613
  • DOI: 10.5897/IJWREE
  • Start Year: 2009
  • Published Articles: 347

Full Length Research Paper

Removal of nitrogen from ammonium-rich synthetic wastewater in an upflow column type anammox reactor

M. G. Mostafa
  • M. G. Mostafa
  • Institute of Environmental Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
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Y. Kawakubo
  • Y. Kawakubo
  • Department of Life and Environmental Sciences, GraduateSchool of Science and Technology, Kumamoto University, Kurokami 2-39-1 Kumamoto, Japan
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K. Furukawa
  • K. Furukawa
  • Department of Life and Environmental Sciences, GraduateSchool of Science and Technology, Kumamoto University, Kurokami 2-39-1 Kumamoto, Japan
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  •  Received: 06 June 2011
  •  Accepted: 19 August 2011
  •  Published: 08 October 2011

Abstract

The aim of this study is to illustrate the efficiency of nitrogen removal from synthetic wastewater using a fixed-bed anaerobic ammonium oxidation (anammox) reactor. A continuous fed flow reactor was inoculated with upflow anammox and fed with synthetic wastewater. The reactor was operated for 75 days without pH control. The maximum ammonium and nitrite removal efficiencies achieved were 95 and 97.5%, respectively. The maximum nitrogen conversion capacity was 3.2 kg NH4+-N/m3/day, 1.89 kg NO2--Nm3/day and 4.6 kg total Nm3/day with maximum loadings of 3.9 kg NH4+-N/m3/day, 2.00 kg NO2---N/m3/day and 5.64 kg total-N/m3/day, respectively. The experimental results suggest that a fixed-bed anammox reactor can be operated under high ammonium and nitrite concentration with no pH control.

 

Key words: Ammonium, anammox, nitrogen removal, nitrite, reactor, wastewater.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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