The paper is focused on the sorption of phosphorus from aqueous solutions by crystalline and amorphous blast furnace slags. Slag sorption kinetics were measured, adsorption tests were carried out and the effect of acidification on the sorption properties of slags was studied. The kinetic measurements confirmed that the sorption of phosphorus on crystalline as well as amorphous slags can be described by a model involving pseudo-second-order reactions. For all slag types, phosphorus sorption follows the Langmuir adsorption isotherm. The acid neutralizing capacities of crystalline and amorphous slags were determined. In the case of the crystalline slags, buffering intervals were found to exist during which the slag minerals dissolve in the sequence bredigite-gehlenite-diaspor. There is a high correlation (R2=0.9989) between ANC3.8 and the saturation capacities of crystalline and amorphous slags.

• MeSH
• adsorpce MeSH
• chemické látky znečišťující vodu izolace a purifikace   MeSH
• čištění vody metody   MeSH
• finanční podpora výzkumu jako téma MeSH
• fosfor chemie   izolace a purifikace   MeSH
• kinetika MeSH
• koncentrace vodíkových iontů MeSH
• kovy analýza   chemie   MeSH
• průmyslový odpad analýza   MeSH
• spalování odpadů MeSH
• zachování přírodních zdrojů MeSH
• Publikační typ
• srovnávací studie MeSH