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Evaluation of Removal Efficiencies of Heavy Metals Using Brown Seaweed Biosorbent Under Different Biosorption Systems
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 Title & Authors
Evaluation of Removal Efficiencies of Heavy Metals Using Brown Seaweed Biosorbent Under Different Biosorption Systems
Choi, Ik-Won; Seo, Dong-Cheol; Kim, Sung-Un; Kang, Se-Won; Lee, Jun-Bae; Lim, Byung-Jin; Kang, Seok-Jin; Jeon, Weon-Tai; Heo, Jong-Soo; Cho, Ju-Sik;
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BACKGROUND: Heavy-metal pollution represents an important environmental problem due to the toxic effects of metals, and their accumulation throughout the food chain leads to serious ecological and health problems. METHODS AND RESULTS: Optimum conditions in continuous-flow stirred tank reactor (CSTR) and packedbed column contactor (PBCC) using brown seaweed biosorbent were investigated. Under optimum conditions from both lab-scale biosorbent systems, removal efficiency of copper (Cu) in a large-scale PBCC system was investigated. Removal capacity of Cu using brown seaweed biosorbent in a lab-scale CSTR system was higher than that in a lab-scale PBCC system. On the other hand, over 48 L/day of flow rate in Cu solution, removal efficiency of Cu in a lab-scale PBCC system was higher than that in a lab-scale CSTR system. Optimum flow rate of Cu was 24 L/day, optimum Cu solution concentration was 100 mg/L. Removal capacity of Cu at different stages was higher in the order of double column biosorption system > single column biosorption system. Under different heavy metals, removal capacities of heavy metal were higher in the order of Pb > Cr > Ni > Mn Cu Cd Zn Co. Removal capacity of Cu was 138 L in a large-scale PBCC system. Removal capacity of Cu a large-scale PBCC system was similar with in a lab-scale PBCC system. CONCLUSION(s): Therefore, PBCC system using brown seaweed biosorbent was suitable for treating heavy metal wastewater.
Biosorption;Biosorbent;Copper;Heavy metal;Breakthrough curve;
 Cited by
우리나라 농경지 중금속 동태 및 작물흡수 연구동향,이지호;김지영;고우리;정은정;;정구복;김두호;김원일;

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