In this work, the SAFT-VR Mie equation of state is used in conjunction with Dubinin-Radushkevich-Astakhov (DRA) and Steele potentials, according to Multicomponent Potential Theory Adsorption (MPTA), model thermodynamic behavior fluids confined porous media. The problem specifications are temperature, volume, number moles each component, yielding a Helmholtz energy-minimization problem. Calculat...

zinc­ (zn) is an essential micro­nutrient needed by plants, animals and humans. bioavailability of zn to plant root is controlled through sorption process in soils. to evaluate the effect of citric acid on zn sorption,­ a batch experiment was conducted with two soil samples (s1, s2), that differed in their clay and calcium carbonate contents. three levels of citric acid (0,­ 0.5, 1 mm) and twel...

Magnetic graphene oxide nanocomposites (M-GO) were successfully synthesized by partial reduction co-precipitation method and used for removal of Sr(II) Cs(I) ions from aqueous solutions. The structures properties the M-GO was investigated X-ray diffraction, Fourier transformed infrared spectroscopy, photoelectron transmission electron microscopy, scanning vibrating sample magnetometer (VSM) N2-...

The abatement of particulate matter in gasoline direct injection (GDI) engines requires the use filters. In turn, optimisation their regeneration is based on a deep knowledge soot oxidation behaviour. determination intrinsic kinetic parameters GDI explored thermogravimetric analysis (TGA) and reaction rate modelling. New understanding provided enabling an accurate prediction wide range temperat...

in the present study, different activated carbons were prepared from carbonized african beech wood sawdust by potassium hydroxide activation. the activated carbons were characterized by brunauer–emmett–teller, scanning electron microscope, fourier transform infrared spectroscopy, and thermogravimetric analyzer. the phenol adsorption capacity of the prepared carbons was evaluated. the different ...

in the present work, we have investigated the sorption efficiency of the treated activated carbon from walnut shell(acw) towards direct red 81 (dr81) and direct blue 71 (db71) for the removal from aqueous solution. thesorption study of acw at the solid-liquid interface was investigated using kinetic, sorption isotherms, ph effectand amount of adsorbent. experimental data were analyzed by langmu...

Abstract— An EC-103 microporous carbon adsorbent was synthesized from wood using thermochemically activation with Н 3 РО 4 as an activating agent. Methane adsorption on the studied within temperature range 303 to 333 K and at pressures up 40 MPa. The total volume of sorbing pores 1.71 cm /g. maximum values methane were obtained pressure differential molar isosteric heat 14.5 mmol/g (23.2 wt %) ...

the objective of this study was to assess the adsorption potential of activated carbon (ac) asan adsorbent for the removal of murexide (mu) from aqueous solutions. the influence of variablesparameters including ph, amount of adsorbent, sieve size of adsorbent, temperature and contact timeon mu removal was studied. following optimization of variables, the relation between concentrations ofdye re...

Bottom ash, a waste of thermal power plants, and deoiled soya, an agricultural waste material, were employed for successful removal and recovery of hazardous phenol red dye from wastewaters. The adsorption characteristics and operational parameters were determined by monitoring different parameters such as effect of pH, effect of concentration of the dye, amount of adsorbents, contact time, and...