Title: Phase, physicochemical characterization and sorption properties of ferruginous sludges generated from water treatment process
Principal Investigator: Magdalena Wołowiec
Funding agency: National Science Centre (Poland)
Project ID: Preludium 14
The aim of the project is to determine the phase, chemical composition, and physicochemical properties of ferruginous sludges generated during deironing processes of groundwater from water treatment stations located in Wielkopolska Voivodship. The study will involve analysis of phase composition (SEM-EDS, XRD, FTIR, TG/DTA/QMS), chemical composition (XRF, ICP), textural and physiochemical properties (BET, pHZPC). Another objective is to explain the variability of the sludge’s composition and properties, which depend on the chemical composition and physicochemical properties of the groundwater from which the sludges precipitates. The next assignment will be to evaluate the sorption capacities of the sludges with respect to heavy metals, metalloid ions (Pb(II), Cd(II), Zn(II), Cu(II), Cr(III), Cr(VI), As(V), P(V)), and H2S.
Differences between the various types of ferruginous sludges will be explained by the data collected about phase, chemical composition, and physicochemical properties and comparison of these results against the chemical composition of the waters from which the sludges are generated, as well as the geological and hydrological structure of the given area. Through a series of sorption experiments it will be possible to define the sorption capacity, sorption mechanism, sorption kinetics, pH effect and immobilization durability of selected heavy metals, metalloids ((Pb(II), Cd(II), Zn(II), Cu(II), Cr(III), Cr(VI), As(V), P(V)) and gases (H2S). After collecting all results, it will be possible to determine the nature of the reaction and the sorption mechanism on the ferruginous sludges
The obtained data will develop knowledge about the nature of ferruginous sludge, especially the variations in chemical composition and physicochemical properties. The conducted research will contribute to new possible applications of ferruginous sludges from water treatment processes.