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KMID : 1024520030120040469
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Journal of the Environmental Sciences
2003 Volume.12 No. 4 p.469 ~ p.476
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Removal of Pb[2+] ion from aqueous solution Using crab shell treated by acid and alkali
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Kim Dong-Seog
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Abstract
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In order to examine the pre-treatment effect of crab shell en Pb removal by crab shell in aqueous solution, acid and alkali pre-treated crab shell were used. Electron microscopy techniques such as TEM (transmission electron microscopy) and SEM (scanning electron microscopy), and EDX (energy dispersive X-ray) and FTIR (Fourier transform infrared) spectrometry techniques were used to investigate the process of Pb removal by acid and alkali pre-treated crab shell. The Pb removal by acid pre-treated crab shell was much lower than that by untreated crab shell because of the decrease of CaCO from the crab shell. However, the Pbremoval by alkali pre-treated crab shell increased compared to that by untreated crab shell. The results were confirmed by TEM, SEM, EDX and FTIR.nd FTIR.
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KEYWORD
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Crab shell, Acid pre-treatment, Alkali pre-treatment, TEM, SEM, FTIR, EDX
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