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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A systematic synthesis framework for extractive distillation processes
TL;DR: In this contribution, heuristic rules for entrainer selection and the design of entrainers through computer-aided molecular design are reviewed and it is shown that a screening based on selectivity alone is not sufficient and could possibly lead to an unfavorableEntrainer choice.
Journal ArticleDOI
Hesperetin-Loaded Solid Lipid Nanoparticles and Nanostructure Lipid Carriers for Food Fortification: Preparation, Characterization, and Modeling
TL;DR: In this paper, solid lipid nanoparticles and nanostructure lipid carriers were used to entrap hesperetin and broaden the knowledge of application of nanocarriers as the functional ingredients in food sectors.
Journal ArticleDOI
Preparation of Al–Ce hybrid adsorbent and its application for defluoridation of drinking water
TL;DR: A novel Al-Ce hybrid adsorbent with high sorption capacity for fluoride was prepared through the coprecipitation method in this study, and its preparation conditions were optimized.
Journal ArticleDOI
The stability and defluoridation performance of MOFs in fluoride solutions
TL;DR: In this paper, the stability of metal-organic frameworks (MOFs) in fluoride solutions was studied based on 11 water-stable MOFs, and several factors were found to have large influence, such as the central metal activity, pore topology and coordination number.
Journal ArticleDOI
Biofuels Production from Biomass by Thermochemical Conversion Technologies
TL;DR: In this article, the physical and chemical characteristics of biofuel substitutes of fossil fuels, potential biomass sources, and process parameters for thermochemical conversion are explored, and the knowledge at hand suggests that biomass can become a sustainable and major contributor to the current energy demands, if research and development are encouraged in the field of thermochemical conversions for various agricultural biomass types.
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
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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.