AQUEOUS SOLUTION

This study utilized cellulose for the adsorption of Zn(II) from aqueous solution via batch adsorption process. The effect of the adsorption parameters: Adsorbent Dosage, Initial Concentrations, and Contact time were investigated. examined under various conditions using heavy metal ion (Zn 2+ ) as the adsorbate. The amounts of Zn(II) adsorbed were estimated by using flame atomic absorption spectrophotometer. It was found to obey the langmuir isotherm as it gave the best fit to the isotherm data. The result of kinetic studies revealed that the adsorption process obeyed pseudo-second order. After the completion of the adsorption process of Zn(II), the result obtained shows that cellulose can be used as an effective adsorbent for the removal of Zinc ion (Zn 2+ ) from aqueous solution

The adsorption properties of the Dangara middle layer clay were examined to determine the adsorption of the heavy metal, zinc. The effect of variation in parameters such as, adsorbent dosage, initial concentration, contact time, pH and temperature were observed. The result obtained showed that the optimum equilibrium adsorption was 99.578% at pH 8, 99.576% at 1.0g adsorbent dosage, 99.578% at contact time of 60minutes, 99.61% at 10ppm initial concentration, and 99.61% at temperature of 40ºC. The experimental data were analyzed by both the Langmuir and Freundlich isotherm model. The result obtained shows that the Dangara middle layer clay is an effective adsorbent for the adsorption of the heavy metal Zinc from an aqueous solution.