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Treatment of malachite green-containing wastewater using poultry feathers as adsorbent

Title
Treatment of malachite green-containing wastewater using poultry feathers as adsorbent
Authors
Beak M.H.Ijagbemi C.O.Kim D.S.
Ewha Authors
김동수
SCOPUS Author ID
김동수scopus
Issue Date
2009
Journal Title
Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
ISSN
1093-4529JCR Link
Citation
vol. 44, no. 5, pp. 536 - 542
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The feasibility of using feathers, a waste from poultry as an absorbent for malachite green in dye wastewater was studied. The batch adsorption tests were shown to be influenced by the concentration of the dye, reaction temperature, solution pH, and pre-treatment with ethanol. In order to establish the equilibrium state of the process, a kinetic study was conducted for an optimal practice of adsorption treatment process. The adsorption reached equilibrium within 120 min in the range of dye concentration studied. It was found that the adsorption rate increases especially at low concentrations of dye and the adsorption data fitted well to the first-order reaction kinetics over all dye concentration range. Absolute amount of adsorbed malachite green at equilibrium condition decreased as concentration decreases. Adsorption of malachite green on poultry feathers fitted well to the Langmuir isotherm model. As temperature increases, the adsorbed amount of malachite green at equilibrium also increased, indicating an endothermic adsorption reaction. In addition, the color removal of malachite green rapidly increased with increase in dye's water pH. The pre-treatment of adsorbent with ethanol produced initial slow rate of malachite green removal but after about 100 min of reaction time, same removal rate was observed compare with the untreated feathers. Copyright © Taylor & Francis Group, LLC.
DOI
10.1080/10934520902720132
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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