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  • Title: Comparison of reject water treatment with nitrification/denitrification via nitrite in SBR and SHARON chemostat process.
    Author: Galí A, Dosta J, Macé S, Mata-Alvarez J.
    Journal: Environ Technol; 2007 Feb; 28(2):173-6. PubMed ID: 17396411.
    Abstract:
    A comparison between three feasible ways of developing Biological Nitrogen Removal (BNR) via nitrite to treat real reject water of 800-900 mg NH4(+)-N l(-1) is proposed. A Sequencing Batch Reactor (SBR) and a chemostat SHARON (Single reactor High activity Ammonium Removal Over Nitrite) continuous reactor were operated. In the SBR operation 0.8 kg N (d m3)(-1) was achieved, whereas in SHARON/denitrification the removal reached was 0.4 kg N (d m3)(-1). SHARON was also developed with partial nitrification of ammonium in order to obtain a stream ready for Anammox (Anaerobic Ammonia Oxidation) process obtaining an effluent with an average composition of 400 mg NO2(-)-N l(-1) and 350 mg NH4(-)-N l(-1).
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