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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An algorithmic framework for multiobjective optimization.
TL;DR: This paper proposes a framework to generate new high-performance algorithms with minimal computational overhead for MO optimization and utilizes algorithmic concepts related to the problem structure for generating efficient and effective algorithms.
Journal ArticleDOI
Effect of particle size on loading capacity and water quality in water defluoridation with 200C calcined bauxite, gypsum, magnesite and their composite filter
TL;DR: In this paper, a composite filter with bauxite, gypsum, magnesite and their composite calcined at 200°C was used to determine relationship between particle size, capacity and water quality.
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The Products Characteristics of Calcium-basic Compounds Pyrolysis with Waste Printed Circuit Boards (PCB)
TL;DR: In this article, the co-pyrolysis of PCB and calcium-basic compounds was investigated and the yield of liquid products of simple PCB pyrolyse was the highest and reached 10.51%.
Journal ArticleDOI
Polystyrene Microbeads by Dispersion Polymerization: Effect of Solvent on Particle Morphology
Lei Jinhua,Zhou Guangyuan +1 more
TL;DR: In this article, the effect of ethanol content in the blend solvent on the morphology and molecular weight of polystyrene microspheres was studied, and it was shown that the size and the molecular weight increased and decreased with the decreasing of the ethanol content.
Preparation of mesoporous silica-supported palladium catalyst for biofuel upgrade
TL;DR: In this article, the authors reported the preparation of two hydrocracking catalysts Pd/CoMoO4/silica (CNTs, carbon nanotubes).
References
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Some aspects of the surface chemistry of carbon blacks and other carbons
TL;DR: In this paper, a review of the surface chemistry of carbon blacks and other activated carbons is given, focusing on surface oxides with emphasis on the chemical methods used in the assessment and identification of surface functional groups.
Book
Process Chemistry for Water and Wastewater Treatment
TL;DR: Process chemistry for water and wastewater treatment as mentioned in this paper, Process Chemistry for Water and Wastewater treatment, Process chemistry for wastewater treatment, and process chemistry for drinking water treatment, کتابخانه دانشگاه علوم پزδکی و خدمات بهداشتی درمانی
Journal ArticleDOI
Adsorption kinetics of fluoride on low cost materials
TL;DR: The data suggested that Calcite has been seen as a good adsorbent in fluoride removal and has been patented, but its adsorption capacity is only better than quartz, and the external mass transfer is a very slow and rate-determining step during fluoride removal from the aqueous solution.
Journal ArticleDOI
Adsorption of fluoride from water by amorphous alumina supported on carbon nanotubes
Yanhui Li,Shuguang Wang,Anyuan Cao,Dan Zhao,Dan Zhao,Xianfeng Zhang,Cailu Xu,Zhaokun Luan,Dianbo Ruan,Ji Liang,Dehai Wu,Bingqing Wei +11 more
TL;DR: A new candidate for fluoride adsorption from water, amorphous Al2O3 supported on carbon nanotubes (Al 2O3/CNTs) is reported in this article.
Journal ArticleDOI
Point of zero charge and intrinsic equilibrium constants of activated carbon cloth
TL;DR: In this paper, the surface properties of cellulose-based activated carbon cloth were investigated and the point of zero charge was determined by batch equilibrium method, where the site-binding model was applied to calculate the intrinsic acidity constants.