Abstract
AbstractThe possibility of bank filtration as a water purification technique was assessed by comparing water quality of a river and bank filtrate obtained from a pilot plant operation during 7 months from November 2010 to May 2011. The research began with soil analysis, including soil adsorption characteristic, and then a comparison was performed in terms of total dissolved solids (TDS), suspended solids (SS), potassium permanganate (KMnO4) consumption, biological oxygen demand (BOD), and ammonium (NH4-N), nitrate (NO3-N), iron (Fe), and manganese (Mn) concentrations. The study area showed high concentrations of Fe (470 mg/kg), Mn (80 mg/kg), and NH4-N (15 mg/kg). The adsorption coefficients of k and 1/n were 0.00159 and 0.8714, respectively, which implied that adsorption of the soil depended on organic matter contents. Water quality comparisons revealed that TDS remained consistent, but SS was lower by 84% in bank filtration samples. NH4-N concentration increased from 0 mg/L to ≥ 1 mg/L possibly due to a...
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