Comparison of Carbon Nonotubes and Activated Alumina Efficiencies in Fluoride Removal from Drinking Water
Gholam Ali Haghighat,Mohammad Hadi Dehghani,Simin Nasseri,Amir Hossein Mahvi,Nooshin Rastkari +4 more
TLDR
In this article, the authors investigated the removal efficiency of single and multi-wall carbon nanotubes (SWCNs and MWCNs) from water, and its comparison with two types of fine powder and 150 mesh activated alumina.Abstract:
Fluoride is a kind of anions, which makes its way to the water resources through diverse natural and human activities. Moreover, its health effects are so important and can vary based on the amounts of the intakes to the body. The aim of this study was to investigate fluoride removal efficiency of single and multi-wall carbon nanotubes (SWCNs & MWCNs) from water, and its comparison with the removal efficiency of two types of fine powder and 150 mesh activated alumina. Results show that, using SWCNs, the highest removal efficiency was achieved in pH=5 and sorbent concentration of 0.5 g/L. Moreover, with the increasing of pH the removal efficiency decreased. Meanwhile, fluoride removal efficiency increased with the increasing of the sorbent dosage and decreasing of the initial concentration of fluoride. In conclusion, the SWCNs had higher removal efficiency in comparison with the removal efficiency of both types of the activated alumina in optimum conditions.read more
Citations
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Enhanced Removal of Fluoride by Polystyrene Anion Exchanger Supported Hydrous Zirconium Oxide Nanoparticles
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A review of emerging adsorbents and current demand for defluoridation of water: Bright future in water sustainability.
TL;DR: The present paper reviews the currently available methods and emerging approaches for defluoridation of water and highlights the most promising adsorbents tested so far from each category and represented graphically.
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Evaluation of removal efficiency of fluoride from aqueous solutions using synthesis of nano-scale alumina on multi walled carbon nanotube (MWCNTs): equilibrium and kinetic studies
Hamid Zarei,Simin Nasseri,Ramin Nabizadeh Noudehi,Sudabeh Pourfadakari,Farzaneh Shemirani,Amir Hossein Mahvi +5 more
TL;DR: In this paper, the removal of fluoride from drinking water by nano- alumina coated on multi-walled carbon nanotubes (MWCNTs) was investigated and the impact of various parameters, such as, pH, contact time, adsorbent dose, and initial fluoride concentration was investigated in the solution.
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Use of bauxite from active Iranian mines for the removal of fluoride from drinking water
TL;DR: Bauxite from the Jajarm mine had the lowest adsorbency and required the shortest contact time to reach equilibrium compared with the ore from bauxite mines evaluated in another study which had greater efficiency rates in removing fluoride from drinking water.
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The Impact of Resource Consumption Attack on Signal-Stability based Adaptive Routing Protocol in Manet
Shaveta Jain,Kushagra Agrawal +1 more
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