Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"fluoride removal"”.
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Selective fluoride removal by aluminum precipitation & membrane filtration
Fluoride is an anionic constituent of most natural surface and ground waters. At low concentrations it has the beneficial effect of improving dental health, but at high concentrations it causes skeletal and other problems. The drinking water standard for fluoride is 4.0 mg/L, but even at this level …
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The sorption of fluoride ion with special reference to fluoride removal from potable waters
… discovery that even very small concentrations of fluorides in drinking waters are sufficient to cause the serious dental dystrophy commonly known as mottled enamel, has around widespread interest and concern. Federal and State surveys have been conducted to determine the geographical distribution …
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Defluoridation of Water Using Silica Based Aluminum Coated Adsorbents
Fluoride contamination in drinking water poses serious global health concerns, including fluorosis, cancer, and organ damage. To address this, the present study developed and evaluated aluminum-coated silica-based adsorbents for effective and sustainable fluoride removal. Silica sand and …
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Fabrication of metal-oxide modified porous ceramic granules from aluminosilicate clay soils for defluoridation of groundwater
… for rural communities are reported to have high fluoride concentration, much above the WHO guideline of 1.5 mg/L. This study aimed at activating aluminosilicate clay soil mechanochemically, modifying aluminosilicate clay soil with Al-oxide and fabricating porous ceramic granules using Al-oxide …
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Effects of various aqueous environmental conditions on the removal of fluoride in fixed bed column reactors packed with calcium hydroxyapatite pellets
… effective treatment process for removing excess fluoride from drinking water. It is a calcium phosphate crystalline mineral of significant importance to biological applications in dentistry and bone implants, as it comprises the majority of bone and tooth enamel. It also plays a direct role in …
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Fabrication of Macadamia Nutshell Powder-AI/Fe Metal Oxide Modified Diatomaceous Earth Composite Beads for Fluoride and Pathogen Removal Groundwater
Contamination of drinking water due to fluoride and pathogens is a severe health hazard problem. Excess of fluoride (>1.5 mg/L) in drinking water leads to dental and skeletal fluorosis whereas the presence of pathogens in water can lead to adverse health effects, including gastrointestinal illness, …
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Synthesis of Zr4+/Ag+ metal oxides modified zeolite for application in fluoride and pathogens removal from water
… is often contaminated with high levels of fluoride and pathogens, posing a significant health risk. This dissertation aims to synthesize Zr4+/Ag+ metal oxides modified zeolite adsorbent for use in fluoride and pathogens removal from water. The first section of this research aimed at …