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Applied Biochemistry and Biotechnology

, Volume 34, Issue 1, pp 777–788 | Cite as

Sorption of heavy metals by untreated red fir sawdust

  • Patrick S. Bryant
  • James N. Petersen
  • James M. Lee
  • Thomas M. Brouns
Session 5 Biotechnology, Bioengineering, and Environmental Problems

Abstract

Equilibrium and rate relationships have been determined for the sorption of divalent copper (Cu2+) and hexavalent chromium (Cr6+) onto untreated Red Fir sawdust. For both ions, the equilibrium sorption levels were determined to be a function of the solution pH and temperature. The equilibrium adsorption capacity of the sawdust for Cu2+ was found to increase with increasing pH. However, for Cr6+ the sorption capacity increased with decreasing pH. For both ions, the rate of adsorption and the equilibrium adsorption capacity increased with temperature. The sorption capacity of α-cellulose was at least an order of magnitude less than the untreated sawdust.

Index Entries

Sawdust wood adsorption heavy metals 

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Copyright information

© Humana Press Inc. 1992

Authors and Affiliations

  • Patrick S. Bryant
    • 1
  • James N. Petersen
    • 1
  • James M. Lee
    • 1
  • Thomas M. Brouns
    • 2
  1. 1.Department of Chemical EngineeringWashington State UniversityPullman
  2. 2.Waste Treatment DepartmentBattelle Pacific Northwest LaboratoriesRichland

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