Search

Cadmium is one of the leading pollutants due to its persistence and high mobility in the environment. In this work, the sorption behavior of cadmium ions were investigated using a newly synthesized adsorbent, multidentate amine ligand decorated hairy brushes on PS-DVB microbeads. The adsorption parameters were examined to evaluate the optimum values for pH, contact time, temperature and adsorbent amount (pH of 7.0, 5.0 mg adsorbent amount, 60.0 min. contact time, 25°C). The adsorption process well fitted with Langmuir isotherm and pseudo-second order model. The promising results indicated that the sorbent is a good alternative in cadmium removal studies. [ABSTRACT FROM AUTHOR]

The ability of Kula volcanics (the youngest volcanic rocks of western Anatolia) to remove Pb(II) and Cu(II) from aqueous solutions has been demonstrated, for the first time, in this study. The optimum parameters viz., pH, contact time and sorbent amount/solution volume ratio were evaluated using batch experiments. Langmuir isotherm model excellently described the sorption process and both of the ions followed pseudo-second-order kinetics. The method was applied to the natural river water samples and it was observed that the sorbent can successfully be used for the removal Pb(II) and Cu(II) ions with acceptable accuracy and precision. [ABSTRACT FROM PUBLISHER]