Removal of metal ions from sodium arsenate solution using tree fern

Y. S. Ho

研究成果: 雜誌貢獻文章同行評審

19 引文 斯高帕斯(Scopus)

摘要

The sorption of metal ions from sodium arsenate solution by using an agricultural by-product, tree fern, has been investigated. The sorption of sodium cation on tree fern has been studied in terms of pseudo-second-order sorption processes. The pseudo second-order kinetic model has been developed to predict the rate constant of sorption, the equilibrium capacity and initial sorption rate with the effect of initial metal ion concentration. The Henry's law, Langmuir and Redlich-Peterson isotherms were used to correlate experimental isotherms. The sorption of sodium cation follows Henry's law and a modified Redlich-Peterson isotherm. However, the arsenic could not be removed from sodium arsenate solution by the sorption for the reason that arsenic is in the form of anion as arsenic acids in the solution and because of the negative charge of tree fern surface.
原文英語
頁(從 - 到)352-356
頁數5
期刊Process Safety and Environmental Protection
81
發行號5
DOIs
出版狀態已發佈 - 九月 2003

ASJC Scopus subject areas

  • 化學工程 (全部)
  • 安全、風險、可靠性和品質
  • 環境工程
  • 安全研究
  • 環境化學

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