Activated carbon
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TítuloModelling the absorption of styrene and acetone on activated carbon and perlite beds
... Experimental data from the Institute of Chemical Technology, Prague were analysed to derive some simple models of the rate of adsorption of either styrene or acetone from dilute air mixtures on sterile beds of ...
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Production of activated carbon from agave salmiana bagasse and its modification to remove arsenic from water
... hand, activated carbon is the most used adsorbent around the world and its production has considerably increased due to more rigorous environmental regulations in the last ...as activated ...
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Simultaneous adsorption of Pb(Ii)-Cd(Ii), Pb(Ii)-phenol, and Cd(Ii)-phenol by activated carbon cloth in aqueous solution
... and carbon nanotubes (AndradeEspinosa et ...). Activated carbons are the most widely employed adsorbents for water treatment because they represent an easy and economical option compared to other ...
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Pelletization of catalysts supported on activated carbon. A Case Study : clean synthesis of dimethyl carbonate from methanol and CO2
... the carbon, resulting in lower surface area, and, upon pyrolysis the binder is decomposed favoring graphitization and removal of binder from the pores ...the activated carbon ...the carbon to ...
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Facile synthesis and characterization of MnxZn1-xFe2O4/activated carbon composites for biomedical applications
... /activated carbon was prepared with the mechanosynthesis .../activated carbon composite was able to heat in concentrations of 10 mg/ml under a magnetic field ...
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Activated carbon fibers as biological supports and redox mediators in the biotic and abiotic anaerobic transformation of nitroaromatic compounds
... 44 Until now, the presence of surface functional groups on ACFs had not been demonstrated to act as effective redox mediators on the reduction of nitroaromatic compounds by sulfide as primary electron donor. The great ...
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Immobilization of redox mediator for anaerobic biotransformation of congo red dye
... of carbon surface due electrostatic repulsion ...of carbon surface, decreasing interaction with sulfonated azo dye and, therefore, a low adsorption ...on activated carbon would be restricted ...
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Aplicaciones ambientales de carbón activado modificado con nanopartículas de hidro(óxidos) de hierro.
... on activated carbon led to an increase in arsenic(V) uptake of about ...iron-modified activated carbons: a ligand interchange between arsenates and iron oxyhydroxide nanoparticles and electrostatic ...
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Organocatalytic Domino Michael Heterocyclization Reaction of Unsaturated Aldehydes and Cyano Ketones Synthesis of Enantioenriched 4,5,6 Trisubstituted 3,4 Dihydropyranones
... the activated ketone to the unsaturated aldehyde, activated as iminium ion, followed by enolization of the adducts and subsequent heterocyclization to yield the final hemiacetal, and the proposed mechanism ...
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Jeolojía. Estudio sobre carbon fósil que se esplota en Chile, por don Enrique Concha i Toro, encargado de este trabajo por el señor don Ignacio Domeyko, presidente de la primera sección de la Esposicion Internacional de Chile en 1875
... de carbon por esplotar, en una serie de pilares, que en término medio miden 8 o 10 metros por cada lado, partiendo desde el pié del pique, si la estraccion se hace por este medio, i avanzando hasta el límite del ...
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TítuloSimultaneous nitrification and formaldehyde biodegradation in an activated sludge unit
... The formaldehyde concentration in the influent was easily degraded in the activated sludge unit. However, about 18% (±2.15) of the influent COD was present in the effluent of the unit, indicating the possible ...
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Alkali activated materials: cementing a sustainable future
... This paper presents an overview examining the microstructural and macrostructural properties of alkali-activated binders based on granulated blast furnace slags, metakaolin and their blends, developed by the ...
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Synthesis of carbon nanotubes on surface of recovered carbon fibers by chemical vapor deposition, as a sizing process to obtain a hybrid material
... Raman spectroscopy provides some information of CNTs such as the presence of SWCNTs and the degree of graphitization of sample. Raman spectroscopy is a quick and non-destructive technique to analyze carbon sample. ...
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Synthesis and cytotoxic activity of tri acyl ester derivatives of uridine in breast cancer cells
... shielding carbon, δ=62.61 ppm, appears for the C-6’ (-CH2-) carbon of ribose and another carbon with high deshielding ...(-CH-) carbon of ...a carbon with chemical shift δ=70.05 ppm, ...
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Carbon accumulation in the biomass and soil of different aged secondary forests in the humid tropics of Costa Rica
... All carbon pools were included in these estimates, where soils resulted in the most important carbon reservoir although not necessarily the most important in terms of carbon accumulation rates, this ...
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Persistent immune activation in HIV 1 infected individuals|btrigering mechanisms = Hiperactivación inmune en pacientes infectados por VIH 1 : origen multifactorial
... We carried out a previously described co-culture assay [36,37]. Briefly, PBMC were isolated from 300 ml of heparinized whole blood using Ficoll density gradient centrifugation (Lymphocytes Isolation Solution, Rafer, S.L ...
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The role of carbon materials as supports for transition metalbased catalysts
... microdiamonds, nanodiamonds, graphite and silicon carbide by double impregnation and sol immobilisation, which were used as catalysts for the microwave-assisted solvent-free oxidation of 1-phenylethanol, under different ...
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TítuloHenry's law constants of volatile organic compounds in activated sludge and wastewater at 298 K
... an activated sludge liquid as a scrubbing liquor followed by an aerated activated sludge reactor for further oxidation of the scrubbed contaminants (Overcamp et ...recirculated activated sludge has ...
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Measurement of the equilibrium partition of tomato oleoresin between supercritical CO2 and selected adsorbents using dynamic methods
... Brady et al. (1987) extracted polychlorinated biphenils, toxaphene, and dichlorodiphenyltrichlorethane (DDT) extraction from both topsoils and subsoils. They concluded that process efficiency depends mostly on the ...
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Factors driving the carbon mineralization priming effect in a sandy loam soil amended with different types of biochar
... turn activated the soil microorgan- ...organic carbon released from the biochar; abiotic release of inorganic carbon contained in the biochar and a stimulation of decomposition of soil organic ...
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