Hydraulic performance of small free water surface constructed wetlands treating sugar factory effluent in western Kenya
2012 (English)In: HYDROLOGY RESEARCH, ISSN 1998-9563, Vol. 43, no 4, 476-488 p.Article in journal (Refereed) Published
This study investigated, using a lithium salt tracer, how macrophyte species and hydraulic loading rate (HLR) of wastewater influenced hydraulics in constructed wetlands (CWs). Four pilot-scale CWs received 45 mm day(-1) of pre-treated sugar factory effluent and another four received 110 mm day(-1). Half the CWs were planted with Cyperus papyrus and half with Echinochloa pyramidalis. Results showed a significant negative connection between tracer mass recovery and wetland water leakages. Also, a significant negative relationship between active wetland water volume and macrophyte density was detected. Further, a significant effect of HLR on mass removal rates of NH4+-N was observed. However, no significant effect of either HLR or macrophyte species on wetland hydraulic parameters was found.
Place, publisher, year, edition, pages
IWA PUBLISHING , 2012. Vol. 43, no 4, 476-488 p.
constructed wetland; Cyperus papyrus; Echinochloa pyramidalis; hydraulic loading rate; hydraulic tracer study; vegetation
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-79711DOI: 10.2166/nh.2012.133ISI: 000306235400015OAI: oai:DiVA.org:liu-79711DiVA: diva2:544085