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	0000-0002-2879-9622
	1315260956

Wondwosen Sime Geleta

Groundwater defluoridation : fixed-bed column systems packed with rock materials

Universität Rostock, 2023

https://doi.org/10.18453/rosdok_id00004520

Abstract: This study addresses high fluoride levels (>1.5 mg/L) in drinking water using volcanic rock materials in column systems. Characterization techniques informed adsorption mechanisms. VPum removed110 mg/kg, VSco 22 mg/kg. Zirconium-coated adsorbents, Zr – Pu (225 mg/kg) and ZrOCSc (58 mg/kg), enhance fluoride adsorption. Models predicted upscaling without the need for more experiments. Volcanic rocks, natural or modified, can efficiently remove fluoride in fixed-bed adsorption columns. Research on competing ions and adsorbent regeneration is crucial for sustainable groundwater defluoridation.

Dissertation   Freier Zugang