Journal ArticleDOI
Adsorption of Fluoride from Water Solution on Bone Char
Nahum Andrés Medellín-Castillo,Roberto Leyva-Ramos,Raúl Ocampo-Pérez,Ramon F. Garcia De La Cruz,Antonio Aragón-Piña,Jose M. Martinez-Rosales,R.M. Guerrero-Coronado,Laura Fuentes-Rubio +7 more
TLDR
In this article, the effects of solution pH and temperature on the adsorption of fluoride onto bone char made from cattle bones were investigated, and it was found that the maximum adaption took place at pH 3.Abstract:
The effects of solution pH and temperature on the adsorption of fluoride onto bone char made from cattle bones were investigated in this work. It was found that the maximum adsorption took place at pH 3 and the adsorption capacity decreased nearly 20 times augmenting the pH from 3 to 12. This behavior was attributed to the electrostatic interactions between the surface of bone char and the fluoride ions in solution. The adsorption capacity was not influenced by temperature in the range from 15 to 35 °C. A comparison of fluoride adsorption capacities among several adsorbents revealed that the adsorption capacity of the bone char was 2.8 and 36 times greater than those of a commercial activated alumina (F-1) and a commercial activated carbon (F-400). The adsorption capacity is considerably dependent upon the physicochemical properties of the bone char surface and the solution pH.read more
Citations
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Progress in carbon dioxide separation and capture: a review.
Hongqun Yang,Zhenghe Xu,Maohong Fan,Rajender Gupta,Rachid B. Slimane,Alan E. Bland,Ian G. Wright +6 more
TL;DR: This article reviews the progress made in CO2 separation and capture research and engineering and various technologies, such as absorption, adsorption, and membrane separation are thoroughly discussed.
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A review on nanofluids: preparation, stability mechanisms, and applications
Wei Yu,Huaqing Xie +1 more
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Colour Measurement and Analysis in Fresh and Processed Foods: A Review
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A Comprehensive Survey on Particle Swarm Optimization Algorithm and Its Applications
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State-of-the-art review of optimization methods for short-term scheduling of batch processes
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References
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Journal ArticleDOI
Adsorption of fluoride, chloride, bromide, and bromate ions on a novel ion exchanger
Natalia Chubar,Victoria F. Samanidou,V.S. Kouts,G.G. Gallios,Valentyn Kanibolotsky,V. V. Strelko,I.Z. Zhuravlev +6 more
TL;DR: A novel ion exchanger based on double hydrous oxide was obtained by the original sol-gel method from easily available and cheap raw materials and employed for adsorption of F, Cl, Br, and BrO-3 from simultaneous solutions, characterized by potentiometric titration, zeta-potential, and poremetrical characteristics.
Journal ArticleDOI
Adsorption of fluoride from aqueous solution on La3+-impregnated cross-linked gelatin
TL;DR: In this paper, a novel adsorbent, La3+-impregnated crosslinked gelatin, was prepared for the removal of fluoride from drinking water or agroindustrial wastewater by impregnation of cross-linked gelatin with La3+.
Journal ArticleDOI
Removal of hazardous anions from aqueous solutions by La(III)- and Y(III)-impregnated alumina
TL;DR: In this article, a commercially available alumina was impregnated with La(III or Y(III) ions by the adsorption process and the change in the surface charge due to the impregnation was measured by acid/base titration.
Journal ArticleDOI
Fluoride removal from water by adsorption on china clay
TL;DR: In this paper, the authors used china clay as an adsorbent for removal of fluoride from water at different concentrations, temperatures and pH, and investigated the kinetics of adsorption and isotherms at different temperatures for the present system.
Journal ArticleDOI
Removal of Cu(II) and Zn(II) Ions by Sorption onto Bone Char Using Batch Agitation
TL;DR: In this paper, a batch agitation system was used to study the sorption rate of copper and zinc ions onto bone char around pH 5 and the experimental data from the adsorption isotherms and batch kinetics studied were correlated using the Langmuir equation and a film-pore diffusion mass transport model.