Characterization of Napa Soil and Adsorption of Pb (II) from Aqueous Solutions Using on Column Method

Mawardi, Mawardi and Sanjaya, Hary and Zainul, Rahadian (2015) Characterization of Napa Soil and Adsorption of Pb (II) from Aqueous Solutions Using on Column Method. Journal of Chemical and Pharmaceutical Research, 12 (7). pp. 905-912. ISSN 0975-7384

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Abstract

This research aim to investigate and characterization Napa soil at West Sumatera, Indonesia. Napa soil is one of the biggest mineral soil in sumatera island, especially at West Sumatera. Napa soil was characterized using XRD, XRF and morphology SEM. The biggest composition in Napa soil is zeolite that can be used as adsorbant, for removal of Pb (II) from aqueous solutions by column method. The evaluated parameters were optimum pH, initial concentration, particle size and flow rate. The optimum condition was at pH=4, that is 11.146 mg/g, concentration begin optimum 250 mg/L be obtained the as big as adsorption capasity 9.195 mg/g, adsorbent heating that optimum be got to heating temperature 125 o C with adsorption capacity is 9,480 mg/g, the particle size that optimum be obtained to size 830-350 µm with adsorption capacity is 11.323 g/g whereas the optimum flow rate 20 drop/minute with adsorption capasity that is 11.21 mg/g. To use it equalization adsorption Langmuir to get the maximum adsorption capacity is 24.39 mg/g. This study revealed that Napa soil is a very good adsorbent to remove Pb (II) from waste water as the substitutes of more expensive synthetic material.

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