Now showing items 1-4 of 4

    • Hydroxyapatite-activated seaweed biochar for enhanced remediation of fluoride contaminated soil at various pH ranges 

      Moirana, Ruth; Mkunda, Josephine; Machunda, Revocatus; Paradelo, Marcos; Mtei, Kelvin (Elsevier, 2022-12-10)
      This study investigated the defluoridation efficiency of hydroxyapatite-activated seaweed (Eucheuma Cottonii) biochar (HSB) at various soil pH ranges (3–11) while monitoring the impact of contact time (30 min - 2.5 h), ...
    • Removal of fluoride from water using activated carbon fibres modified with zirconium by a drop-coating method. 

      Pang, Tianting; Aye Chan, Thet Su; Shen, Junjie; Jande, Yusufu (Elsevier Ltd, 2020-09-01)
      Metal-modified carbon materials have been widely used for fluoride removal, but the traditional impregnation by soaking method suffers from low loading of metals and substantial use of chemicals. This study proposed a new ...
    • Study of interaction of chitosan with Fluoride 

      Wagutu, Agatha W.; Pogrebnaya, Tatiana P.; Machunda, Revocatus (Biointerface Research in Applied Chemistry, 2018-06-15)
      Interaction of chitosan with fluoride (F- ) has been studied using experimental and computational methods. Chitosan was extracted from prawns shells and modified by cross-linking with glutaraldehyde and protonation using ...
    • Water Defluoridation Methods Applied in Rural Areas over the World 

      Wambu, Enos; Frau, Franco; Machunda, Revocatus; Pasape, Liliane; Barasa, Stephen; Ghiglieri, Giorgio (IntechOpen Limited, 2022-06-23)
      Overexposure to fluoride (F) through drinking water is the most widespread water problem in the world, but it has now exacerbated due to rapid population growth rates, adverse climatic changes, and increasing levels of ...