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

Anna Hwang; Wonhyun Ji; Boyoun Kweon; Jeehyeong Khim

doi:10.1016/j.chemosphere.2007.07.082

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

Anna Hwang, Wonhyun Ji, Boyoun Kweon, Jeehyeong Khim

School of Civil, Environmental and Architectural Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1141-1145
Number of pages	5
Journal	Chemosphere
Volume	70
Issue number	6
DOIs	https://doi.org/10.1016/j.chemosphere.2007.07.082
Publication status	Published - 2008 Jan

Keywords

Heavy metals
Immobilization
Leaching
Phosphatic clay

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Chemistry(all)
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.chemosphere.2007.07.082

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title = "The physico-chemical properties and leaching behaviors of phosphatic clay for immobilizing heavy metals",

abstract = "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.",

keywords = "Heavy metals, Immobilization, Leaching, Phosphatic clay",

author = "Anna Hwang and Wonhyun Ji and Boyoun Kweon and Jeehyeong Khim",

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AU - Hwang, Anna

AU - Ji, Wonhyun

AU - Kweon, Boyoun

AU - Khim, Jeehyeong

N1 - Funding Information: This work is financially supported by Korea Ministry of Construction and Transportation through a research project “Development of High Performance Construction Material”.

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N2 - 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.

AB - 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.

KW - Heavy metals

KW - Immobilization

KW - Leaching

KW - Phosphatic clay

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JO - Chemosphere

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ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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