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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Enhanced fluoride removal performance by Ce–Zn binary metal oxide: Adsorption characteristics and mechanism
TL;DR: In this article, the authors developed a novel Ce-Zn binary metal oxide (CeZn BMO) adsorbent for high-performance fluoride adsorption from drinking water.
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Improved manometric setup for the accurate determination of supercritical carbon dioxide sorption
TL;DR: An improved version of the manometric apparatus and its procedures for measuring excess sorption of supercritical carbon dioxide are presented in detail with a comprehensive error analysis and the sorption isotherms show identical qualitative behavior as data in the literature.
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Effect of Gas Permeability and Solubility on Foam
TL;DR: In this article, the influence of gas permeability and solubility on the drainage and stability of foam stabilized with an anionic surfactant was investigated. But the authors only compared the foam stability for four pure gases and two gas mixtures while previous works only compared two pure gases.
Journal ArticleDOI
Challenges to Developing Methane Biofiltration for Coal Mine Ventilation Air: A Review
TL;DR: In this paper, a review of the techniques available for treating low methane concentrations encountered in mine ventilation air (MVA), after which it focuses on developments in bio-filtration systems.
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p-Nitrophenol Biodegradation by Aerobic Microbial Granules
TL;DR: The importance of a labile co-substrate for maintaining the physical and functional integrity of granular sludge, when used for toxic waste degradation, is highlighted.
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.