Removal of Iron (II) and Manganese (II) from Synthetic Acid Mine Water using Calcium Carbide Residue in Fixed-Bed Column
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Abstract
This study aims to investigate the ability of calcium carbide residues as an adsorbent in a fixed bed column to remove iron (II) and manganese (II) ions from synthetic mine acid water. In this study, synthetic acid mine was used as a sample and transferred into a fixed-bed column at a flow rate of 25, 50, and 100 mL/min. A fixed-bed column was made using flexy glass with an inner diameter of 54 mm and a height of 700 mm. The column was filled in with calcium carbonate residue. The samples were taken at a sample point of bed height of 30, 45, and 60 cm. The data collected was fitted using the Thomas model of adsorption. The results show that the adsorption capacity of calcium carbide residues increases and with an increasing flow rate. The kinetics model of Thomas adsorption for the reduction of the iron and manganese ions is suitable to be applied.
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