Relative metal ion sorption on natural and engineered sorbents: Batch and column studies

Fred D. Tillman, Shannon L. Bartelt-Hunt, Vinka A. Craver, James A. Smith, George R. Alther

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


The sorptive capacity of four sorbent materials (hydroxy-apatite, clinoptilolite, an organoclay, and an organoclay/anthracite blend) was determined for five metals: Cd, Cr, Cu, Ni, and Zn, by performing column and batch sorption isotherm tests. Hydroxy-apatite exhibited the largest sorption capacity for all materials tested, followed by clinoptilolite, the organoclay, and the organoclay/anthracite blend. In general, the increase in sorptive capacity for all materials was related to an increase in measured surface area. Although the organoclay and organoclay/anthracite blend had a lower sorptive capacity than the other materials tested, they show promise as sorbents for mixed effluent streams consisting of both organic contaminants and low levels of heavy metals.

Original languageEnglish (US)
Pages (from-to)400-410
Number of pages11
JournalEnvironmental Engineering Science
Issue number3
StatePublished - 2005
Externally publishedYes


  • Metals
  • Organoclay
  • Sorption
  • Zeolites

ASJC Scopus subject areas

  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution


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