Skip to main content


Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


Bark that was obtained from Korean Red Pine (Pinus densiflora) was used in this study to identify it as a potential adsorbent and ion exchanger of copper and lead ions in trace concentrations from aqueous solutions. Both equilibrium and non-equilibrium tests were conducted. Adsorption of copper and lead ions was pH dependent. Removal of these ions in a single component system could be well described by Langmuir and Freundlich adsorption isotherms. By treatment with nitric acid, sorption capacity of the bark was increased and the problem of initial leaching of the dark brown color could be overcome. At equilibrium, the acid treated bark showed approximately 97% of the sorption capacity of granular activated carbon. Regeneration of the spent bark with nitric acid provided almost the same capacity as fresh material.

Document Type: Research Article


Publication date: 2002-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more