Biological Removal of Nitrogen from Wastewater

  • Guibing Zhu
  • Yongzhen Peng
  • Baikun Li
  • Jianhua Guo
  • Qing Yang
  • Shuying Wang
Part of the Reviews of Environmental Contamination and Toxicology book series (RECT, volume 192)


The removal of ammonia from wastewater has become a worldwide emerging concern because ammonia is toxic to aquatic species and causes eutrophication in natural water environments (Tchobanoglous et al. 2003). Nitrogen compounds in wastewater can only be effectively removed by biological approaches (EPA 1993; Zhu et al. 2007a,b). Based on the microbial nitrogen cycle and the metabolism of inorganic nitrogen compounds (Fig. 1), many biological technologies and processes have been developed and implemented for nitrogen removal from wastewater, such as predenitrification (Anoxic/Oxic), modified Bardenpho, Bio-denitro, sequencing batch reactor (SBR), oxidation ditch (OD), step feeding, anaerobic/anoxic/ aerobic (A2/O), and University of Cape Town (UCT) processes (Wentzel et al. 1992; Østgaard et al. 1997; Williams and Beresford 1998; Tchobanoglous et al. 2003; Pai et al. 2004). These processes have been widely employed in wastewater treatment plants for nitrification and denitrification (EPA 1993). However, with the effluent discharge standards having become more stringent (<10mg total nitrogen/L), conventional processes cannot meet the new requirements (Khin and Annachhatre 2004).


Chemical Oxygen Demand Activate Sludge Anaerobic Ammonium Oxidation Nitrogen Removal Sequencing Batch Reactor 


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Copyright information

© Springer 2008

Authors and Affiliations

  • Guibing Zhu
    • 1
    • 4
  • Yongzhen Peng
    • 1
    • 3
  • Baikun Li
    • 2
  • Jianhua Guo
    • 1
  • Qing Yang
    • 3
  • Shuying Wang
    • 3
  1. 1.School of Municipal and Environmental EngineeringHarbin Institute of TechnologyHarbinP.R. China
  2. 2.Department of Civil and Environmental EngineeringUniversity of ConnecticutStorrs
  3. 3.Key Laboratory of Beijing Water Quality Science and Water Environment Recovery EngineeringBeijing University of TechnologyBeijingP.R. China
  4. 4.SKLEAC, Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingP.R. China

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