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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Application of Titanium Dioxide-Graphene Composite Material for Photocatalytic Degradation of Alkylphenols
TL;DR: In this paper, a composite of titanium dioxide-graphene (TiO2-G) composite was used for the photodegradation of alkylphenols in wastewater samples.
Journal ArticleDOI
Bioremediation of agro-based pulp mill effluent by microbial consortium comprising autochthonous bacteria.
TL;DR: Four bacteria were isolated from the premises of agro-based pulp and paper mill which were identified as species of Pseudomonas, Bacillus, Pannonibacter, and Ochrobacterum which were found capable of reducing COD up to 85%–86.5% in cases of back water and 65-66% in case of backWater.
Journal ArticleDOI
PROMETHEE-ROC Model for Assessing the Readiness of Technology for Generating Energy
Danielle Costa Morais,Adiel Teixeira de Almeida,Luciana Hazin Alencar,Thárcylla Rebecca Negreiros Clemente,Ceres Zenaide Barbosa Cavalcanti +4 more
TL;DR: In this article, a multicriteria decision model for prioritizing technologies that are critical for power generation in the energy sector is proposed, which deals with the context of imprecise information regarding importance of criteria; then an integration of surrogate weights with the PROMETHEE method is undertaken to approach this context.
Journal ArticleDOI
Effect of Organic Acid-Modified Mesoporous Alumina toward Fluoride Ions Removal from Water
TL;DR: In this article, the effects of different parameters such as contact time, concentration of adsorbate (F) ions, pH, temperature, and competing ions were studied for fluoride ion adsorption on mesoporous alumina.
Journal ArticleDOI
Deep desulfurization of model gasoline over photoirradiated titanium-pillared montmorillonite
TL;DR: In this article, the activity of Ti-pillared montmorillonite for photocatalytic oxidative desulfurization using 2,5-dimethylthiophene dissolved in n-octane as a model organosulfur compound in gasoline was investigated.
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.