Izvorni znanstveni članak
Environmentally friendly waste for wastewater treatment
Lorena Koren
; Sveučilište u Zagrebu Metalurški Fakultet, Sisak, Hrvatska,
Anita Štrkalj
orcid.org/0000-0002-7117-4687
; Sveučilište u Zagrebu Metalurški Fakultet, Sisak, Hrvatska,
Zoran Glavaš
orcid.org/0000-0003-4116-3255
; Sveučilište u Zagrebu Metalurški Fakultet, Sisak, Hrvatska,
Sažetak
In this paper, the adsorption properties of two wastes from the metallurgical
industry were studied: waste after shot blasting of the castings and waste
moulding mixture, and waste from the wood industry, i.e. oak sawdust. A
solution of Cu(II) ions was used as the adsorbate. Experimental data have
shown that the waste from the metallurgical industry can be used as an
adsorbent for removal of Cu(II) ions from wastewater. For oak sawdust, it
could not be confirmed with certainty whether it had adequate adsorption
properties due to the release of substances that lead to the coloration of the
adsorbates. Lagergren's and Ho's model was used to describe the adsorption
kinetics of the system waste moulding mixture/Cu(II) ions and waste after shot
blasting of the castings/Cu(II) ions. It was concluded that both systems are
better described by Ho's model, i.e. that the adsorption kinetics in both
systems take place according to pseudo-second order reactions.
Ključne riječi
environmentally friendly waste; wastewater; Cu(II) ions; adsorption kinetics
Hrčak ID:
305993
URI
Datum izdavanja:
14.11.2021.
Posjeta: 124 *