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Recent investigations have shown frequent detection of pharmaceuticals in soils and waters posing potential risks to human and ecological health. Here, we report the enhanced removal of tylosin (TYL) from water by a novel goethite biochar (BCF) composite. Characterization by scanning electron microscopy (SEM) images showed good dispersion of goethite nanoparticles on the biochar surface. The coating...
The sorption of Se(IV) on TiO 2 (anatase) was investigated as functions of contact time, pH, ionic strength, solid-to-liquid ratio (m/V) and Se(IV) concentration by using a batch sorption method. It was found that the sorption kinetics of Se(IV) can be described by a pseudo-second-order model. Both the amount of Se(IV) sorbed at equilibrium and the pH of aqueous solution affect the rate constant...
The sorption of U(VI) and phosphate on γ-alumina was investigated in binary (phosphate/γ-alumina; U(VI)/γ-alumina) and ternary (U(VI)/phosphate/γ-alumina) systems as functions of contact time, pH, ionic strength, solid-to-liquid ratio and U(VI) and/or phosphate concentrations by using a batch experimental method. It was found that the sorption of phosphate on γ-alumina increases with pH from 2.5 to...
We propose a simple model describing the retention of selenite, Se(IV), by the MX-80 bentonite in a synthetic groundwater (SGW) in dispersed and compacted states. The model was calibrated on a pure montmorillonite from data obtained for 4<pH<10 and total selenite concentrations between 10 −7 and 5×10 −3 mol/L. Furthermore, the matrix solution covers a wide range of conditions...
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