Hydraulic performance of small free water surface constructed wetlands treating sugar factory effluent in western Kenya

Hristina Bodin, Jesper Persson

    Forskningsoutput: TidskriftsbidragArtikelPeer review

    9 Citeringar (Scopus)

    Sammanfattning

    This study investigated, usinga iithium salt tracer, how macrophyte species and hydraulic ioading rate (HLR) of wastewater infiuenced hydrauiics in constructed wetiands (CWs). Four piiot-scale CWs received 45 mm/day of pre-treated sugar factory effluent and another four received 110 mm/day.Haif the CWs were planted with Cyperus papyrus and haif with Echinochloa pyramidalis. Resuits showed a significant negative connection between tracer mass recovery and wetiand water leaioges. Aiso, a significant negative reiationship between active wetiand water volume and macrophyte density was detected. Further, a significant effect of HLR on mass removal rates of NH/-N was observed. However, no significant effect of either HLR or macrophyte species on wetland hydraulic parameters was found.

    Keywords | constructed wetiand, Cyperus papyrus. Echinochloa pyramidalis, hydrauiic ioading rate, hydraulic tracer study, vegetation

    OriginalspråkEngelska
    Sidor (från-till)476-488
    Antal sidor12
    TidskriftHydrology Research
    Volym43
    StatusPublicerad - 2012

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