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PURPOSE The potential of using waste Saccharomyces cerevisiae as adsorbent for the adsorption of As(III) from aqueous solution was assessed. METHODS The biosorbent was characterized by Fourier transform infrared (FTIR) spectroscopy analysis. Various parameters including pH, biosorbent dosage, contact time, and temperature were systematically investigated.(More)
This study evaluates the behavior of coconut charcoal (AC) to adsorb Cr(VI), As(III), and Ni(II) in mono- and multicomponent (binary and ternary) systems. Batch experiments were carried out for mono- and multicomponent systems with varying metal ion concentrations to investigate the competitive adsorption characteristics. The adsorption kinetics followed(More)
BACKGROUND AND AIM The biosorption of Basic Violet 5BN (BV) and Basic Green (BG) by waste brewery's yeast (WBY) from single and binary systems was investigated. RESULTS AND DISCUSSION For the single system, the adsorption of both dyes is pH-dependent and the optimum value is 5.0. At a lower initial concentration, the kinetic data agree well with both(More)
The adsorption of Cr(VI) and As(III) by amino-functionalized SBA-15 (NH2-SBA-15) from single and binary systems were investigated in this work. The effects of pH and temperature on the adsorption of NH2-SBA-15 were studied. Adsorption kinetics, isotherm model, and thermodynamics were studied to analyze the experimental data. pH 2 was the optimum condition(More)
The potential of using two different kinds of air drying of activated sludge (aerobic activated sludge and anaerobic activated sludge) for the removal of Cu(2+), Mn(2+), Zn(2+), and Fe(3+) from aqueous solutions was assessed. Results indicated that the maximum biosorption occurred at pH = 5.0 for Cu(2+), Zn(2+), and Mn(2+) and pH = 3.0 for Fe(3+). The(More)
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