Application of high rate nitrifying trickling filters to remove low concentrations of ammonia from reclaimed municipal wastewater

Ben Van Den Akker, Mike Holmes, Michael Short, Nancy Cromar, Howard Fallowfield

    Research output: Contribution to conferencePaper

    6 Citations (Scopus)

    Abstract

    The interference of ammonia with the chlorination process is a problem for many reclaimed water treatment plant operators. This paper presents the findings from a series of pilot experiments that investigated the efficacy of high flow rate nitrifying trickling filters (NTFs) for the removal of low concentrations of ammonia (0.5-3.0mgNL-1) from reclaimed wastewater. Results showed that nitrification was impeded by a combination of high organic carbon loads and aquatic snails, which consumed much of the active biomass. With adequate snail control, nitrification rates (0.3-1.1 gNH4-Nm-2 d -1) equivalent to that of traditional wastewater NTFs were achieved, despite operating under comparably low ammonia feed concentrations and high hydraulic flow rates.

    Original languageEnglish
    Pages2425-2432
    Number of pages8
    DOIs
    Publication statusPublished - 16 Jul 2010
    Event7th IWA conference on water reclamation and reuse -
    Duration: 20 Sep 2009 → …

    Conference

    Conference7th IWA conference on water reclamation and reuse
    Period20/09/09 → …

    Keywords

    • Ammonia
    • Chlorine demand
    • Nitrification
    • Reclaimed wastewater
    • Snails
    • Trickling filters

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  • Cite this

    Van Den Akker, B., Holmes, M., Short, M., Cromar, N., & Fallowfield, H. (2010). Application of high rate nitrifying trickling filters to remove low concentrations of ammonia from reclaimed municipal wastewater. 2425-2432. Paper presented at 7th IWA conference on water reclamation and reuse, . https://doi.org/10.2166/wst.2010.708