Sorption kinetics of Pb, Cu and Zn ions by natural zeolites from Maramures County (northern Romania): potential application inwastewater reus
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2011, Vol 4, Issue 4
Abstract
The sorption kinetics of Pb[sup]2+[/sup], Cu[sup]2+[/sup]and Zn[sup]2+[/sup]ions by natural zeolite tuff from Maramureş County (northern Romania) was studied using agitated batch laboratory apparatus at two temperature levels of 25 0C and 50 0C. The sorption kinetics of studied heavy metals ions by the natural zeolitic tuff was established by fitting of experimental data using various models applied in the kinetic studies of heavy metals sorption onto ions exchangers (pseudo-order 1, pseudo-order 2 and Weber-Morris). From all of these the best results were recorded for the pseudo-order 1 model use. The interaction between metal ions and adsorbent surface is made on a single adsorption site and the adsorption mechanism is a diffusive one through the adsorbent pores.
Authors and Affiliations
Irina Smical
Keywords
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