The physico-chemical properties and leaching behaviors of phosphatic clay for immobilizing heavy metals

Anna Hwang, Wonhyun Ji, Boyoun Kweon, Jeehyeong Khim

Research output: Contribution to journalArticle

11 Citations (Scopus)


In this study, phosphatic clay was used as a phosphate containing material. The fractionation of phosphorus was carried out using the CRM BCR-684 protocol, and the inorganic phosphorus, especially all the apatite phosphorus, was found as the major form. The elemental compositions of the phosphatic clay were identified using an X-ray fluorescence spectrometer, and was found to be mainly composed of CaO and P2O5. The specific surface area, pore volume and average pore diameter were measured also. Results of experiment show that the phosphatic clay may provide a cost-effective way to remediate heavy metal contaminated aqueous and slurry phase.

Original languageEnglish
Pages (from-to)1141-1145
Number of pages5
Issue number6
Publication statusPublished - 2008 Jan 1



  • Heavy metals
  • Immobilization
  • Leaching
  • Phosphatic clay

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry

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