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KMID : 1024520120210030369
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Journal of the Environmental Sciences
2012 Volume.21 No. 3 p.369 ~ p.375
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Availability of Chicken Feather for Removal of Hexavalent Chromium and Oil
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Jeong Jin-Ha
Lee Na-Ri
Park Sung-Bo
Jeong Seong-Yun
Park Geun-Tae
Son Hong-Joo
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Abstract
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We investigated usefulness of chicken feather as bioadsorbent for removal of hexavalent chromium[Cr(VI)] and oil from aqueous solution. Chicken feather was chemically treated with DTPA, EDTA, NaOH and SDS, respectively. Among them, EDTA was the most effective in adsorbing Cr(VI). Cr(VI) uptake by chicken feather was increased with decreasing pH; the highest Cr(VI) uptake was observed at pH 2.0. By increasing Cr(VI) concentration, Cr(VI) uptake was increased, and maximum Cr(VI) uptake was 0.34 mmol/g. Cr(VI) adsorption by chicken feather was well described by Freundlich isotherm than Langmuir isotherm and Freundlich constant(1/n) was 0.476. As the concentration of chicken feather was increased, Cr (VI) removal efficiency was increased but Cr(VI) uptake was decreased. Most of Cr(VI) was adsorbed at early reaction stage(1 h) and adsorption equilibrium was established at 5 h. On the other hand, chicken feather adsorbed effectively oils including bunker-A and bunker-C. In conclusion, our results suggest that chicken feather waste could be used to remove heavy metal and oil; it is a potential candidate for biosorption material.
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KEYWORD
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Adsorption, Bioadsorbent, Chromium, Feather, Oil
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