Equilibrium sorption isotherm for metal ions on tree fern

Y. S. Ho, C. T. Huang, H. W. Huang

研究成果: 雜誌貢獻文章同行評審

455 引文 斯高帕斯(Scopus)

摘要

A new sorbent system for removing heavy metal ions, such as Zn(II), Cu(II) and Pb(II), from aqueous solutions has been investigated. This new sorbent is tree fern, an agriculture product. Variables of the system include solution temperature and sorbent particle size. The experimental results were fitted to the Langmuir, Freundlich and Redlich-Peterson isotherms to obtain the characteristic parameters of each model. Both the Langmuir and Redlich-Peterson isotherms were found to well represent the measured sorption data. According to the evaluation using the Langmuir equation, the maximum sorption capacities of metal ions onto tree fern were 7.58 mg/g for Zn(II), 10.6 mg/g for Cu(II) and 39.8 mg/g for Pb(II). It was noted that an increase in temperature resulted in a higher metal loading per unit weight of the sorbent. Decreasing the particle sizes of tree fern led in an increase in the metal uptake per unit weight of the sorbent.
原文英語
頁(從 - 到)1421-1430
頁數10
期刊Process Biochemistry
37
發行號12
DOIs
出版狀態已發佈 - 七月 2002

ASJC Scopus subject areas

  • Biochemistry

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