FIXED – BED COLUMN STUDY ON REMOVAL OF AMONIUM, Mn(II) FROM AQUEOUS SOLUTION USING USING SURFACTANT MODIFIED LATERITE SOIL

Abstract

     This paper focus on adsorptive removal of amonium and Mn(II) from aqueous solution by using surfactant modified laterite soil. The results indicated that the moving adsorption capacity is depended on flow speed and concentration of amonium and Mn(II). Fixed – bed column adsorption capacity for amonium and Mn(II) is 12.99 mg (at flow speed of 2.0 mL/min and concentration of amonium is 40.77 mg/L) and 2.50 mg (at flow speed of 2.0 mL/min and concentration of Mn(II) is 10.12 mg/L), respectively. The solution of  0.02 M HCl and 0.05 M EDTA is the best for eluting amonium and Mn(II) with effective elution is approximately 98%. The coefficent of enrichment is 26 times for amonium and about 22 times for Mn(II). Concentration of amonium and Mn(II) was analyzed by molecular absorption spectrometry.