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Original Articles Open Access
Rice husk and its modified forms have been proven effective in reducing pollutants from water and wastewater, including metals and non metals. But, to date, only few studies have focused on landfill leachate. Landfill leachates may contain large amounts of organic matter where humic-type constituents consist an important group, as well as ammonia-nitrogen, heavy metals, chlorinated organic and inorganic salts. Iron were found in significant quantities metal at the landfill site. This study purposes to investigate the ability of rice husk to reduce Iron (Fe) from landfill leachate. Landfill leachate was pumped and filled by gravity into the rice husk packed bed column. The effect of influent flow rate to adsorption capacity was studied by varying flow rate of 5 mL/min and 10 mL/min. The effluent-influent concentration ratio Ce/C0 (%) as a function of throughput volume (L) was used to represent the breakthrough curve in column systems. Result shows that the flow rate of 5 mL/min was favorable to achieve higher removal rates with the percentage of iron was 64%.At breakthrough time, the iron effluent concentration reached on 0.571 and 1.903 mg/L for flow rate of 5 mL/min and 10 mL/min respectively.
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Author(s): Monik Kasman and Shaliza Ibrahim
Rice husk, Packed bed column, Iron, Landfill leachate, Rice Husk