Izvorni znanstveni članak
The change in surface area properties of blast furnace sludge treated by citric acid
Ankica Rađenović
; University of ZagrebFaculty of Metallurgy Sisak
Jadranka Malina
Gordana Matijašić
Sažetak
The blast furnace sludge (BFS) is a waste material of pig iron production. The chemical and mineralogical composition of BFS was examined by Proton Induced X-ray Emission (PIXE) and X-ray Diffraction (XRD) methods. Surface area properties (specific surface area, average pore diameter, total pore volume) are determined by the Brunauer-Emmett-Teller (BET) and Barrett-Joyner-Halenda (BJH) method. The microscopic observation was conducted using a scanning electron microscopy (SEM method).
Chemical treatment of BFS was performed by adsorbed citric acid. Thermal treatment was done by heating at 700°C. The surface properties of the blast furnace sludge are compared to those obtained after treatment. The results have shown that this successfully performed experiment modified the surface of BFS as a potentially low-cost adsorbent.
Ključne riječi
blast furnace sludge; waste material; chemical and heat treatment; surface area properties
Hrčak ID:
97683
URI
Datum izdavanja:
28.2.2013.
Posjeta: 1.135 *