REMOVAL OF NI(II) IONS FROM AQUEOUS STREAM USING BY FOREST BIOWASTE

Abstract

The removal of Ni(II) using Uludag fir (Abies nordmanniana subsp. bornmuelleriana Mattf.) was investigated as a function of severeal parameters such as initial Ni(II) concentrations, solution pH, adsorbent dosage, temperature and contact time by batch experiments. Experimental data were analysed using the Langmuir and Freundlich isotherms. It was found that the isotherm data was best fitted with Langmuir isotherm (R-2=0.97). Kinetic studies indicated that the pseudo second order kinetic model fit better than the pseudo first order kinetic. Also the thermodynamic parameters (Delta G degrees, Delta H degrees, Delta S degrees) were performed and the results indicated that the adsorption process was feasible, spontaneous and endothermic in nature. The results obtained that use the waste to treat the waste. The results suggested that Uludag fir (Abies nordmanniana subsp. bornmuelleriana Mattf.) is a potent candidate for efficient biosorbent for removing Ni(II) from aqueous streams.