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
More filters
Book ChapterDOI
Pretreatment of Lignocellulosic Biomass Using Microorganisms: Approaches, Advantages, and Limitations
TL;DR: In this paper, it is shown from ice core records that atmospheric CO2 concentration has a strong positive correlation to global temperature, and it is expected that changes to global climate are forthcoming.
Journal ArticleDOI
Preparation of Higher Molecular Weight Poly (L-lactic Acid) by Chain Extension
TL;DR: In this article, a high molecular weight poly (lactic acid) (PLA) was obtained by chain extending with hexamethylene diisocyanate (HDI).
Journal ArticleDOI
An Evaluation of Chemical Pretreatment Methods for Improving Enzymatic Saccharification of Chili Postharvest Residue
Varghese Elizabeth Preeti,S. V. Sandhya,Mathiyazhakan Kuttiraja,Raveendran Sindhu,Sankar Vani,Sukumaran Rajeev Kumar,Ashok Pandey,Parameswaran Binod +7 more
TL;DR: An optimal process for pretreatment and enzymatic saccharification of CPHR that will yield high amount of free sugars is developed to provide insights into the intricacies of biomass conversion leading to better processes that are simpler and more efficient.
Journal ArticleDOI
Controlling Foam Morphology of Poly(methyl methacrylate) via Surface Chemistry and Concentration of Silica Nanoparticles and Supercritical Carbon Dioxide Process Parameters
TL;DR: In this article, the effect of surface modification of silica nanofillers with CO2-philic chemical groups, and supercritical carbon dioxide process conditions on the foam morphology of poly(methyl methacrylate), PMMA, were systematically investigated to shed light on the relative importance of material and process parameters.
Journal ArticleDOI
Photocatalytic Degradation of Phenolics by N-Doped Mesoporous Titania under Solar Radiation
Priti A. Mangrulkar,Sanjay P. Kamble,Meenal M. Joshi,Jyotsna S. Meshram,Nitin Labhsetwar,Sadhana Rayalu +5 more
TL;DR: In this paper, nitrogen-doped mesoporous titania was synthesized by templating method using chitosan, which plays the dual role of acting as a template and precursor for nitrogen.
References
More filters
Journal ArticleDOI
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.