Pumice Soil: A Potential Wetland Substrate for Treatment of Domestic Wastewater

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dc.creatorNjau, Karoli N.
dc.creatorMinja, Rwaichi J. A.
dc.creatorKatima, Jamidu H. Y.
dc.date2016-05-27T13:10:29Z
dc.date2016-05-27T13:10:29Z
dc.date2003
dc.date.accessioned2018-03-27T08:41:07Z
dc.date.available2018-03-27T08:41:07Z
dc.descriptionFull text can be accessed at http://wst.iwaponline.com/content/48/5/85.abstract
dc.descriptionLaboratory and fieldwork studies were carried out to evaluate the potential of pumice soil for use as a wetland substrate in wastewater treatment. The composition of pumice soil was analysed by x-ray fluorescence (XRF) and x-ray diffraction (XRD) techniques. Adsorption kinetic studies were carried out in a semi-batch recycle system. Fieldwork tests were carried out on Subsurface Flow Constructed Wetland (SSFCW) cells planted with Phragmites mauritianus and Vetiveria zizanioides. The results have shown that pumice soil composition contains among other elements Al, Ca, Fe and Mg, which are positive indicators for phosphorus adsorption. The main minerals observed by XRD were augite, hematite, and sodium titanium silicate. Phosphorus adsorption kinetics have shown that phosphorus is adsorbed on pumice soil following first order kinetics and the adsorption was highly influenced by mass transfer. Approximately 3% of the phosphorus was removed by plant uptake.
dc.identifierNjau, K.N., Minja, R.J.A. and Katima, J.H.Y., 2003. Pumice soil: a potential wetland substrate for treatment of domestic wastewater. Water Science and Technology, 48(5), pp.85-92.
dc.identifierhttp://hdl.handle.net/20.500.11810/2294
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2294
dc.languageen
dc.publisherIWA Publishing
dc.titlePumice Soil: A Potential Wetland Substrate for Treatment of Domestic Wastewater
dc.typeJournal Article

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