Adsorption and removal of strontium in aqueous solution by synthetic hydroxyapatite

Yuichi Nishiyama, Tadashi Hanafusa, Jun Yamashita, Yoko Yamamoto, Toshiro Ono

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Hydroxyapatite (HAP) is a main mineral constituent of bone and tooth and has an outstanding biocompatibility. HAP is a possible sorbent for heavy metals in wastewater due to its high adsorption capacity and low water solubility. We developed a removal system of 90Sr from aqueous solution by HAP column procedure. More than 90 % of 90Sr was adsorbed and removed from the 90Sr containing solution. Divalent cations, Ca2+, had little effect on the removal of 90Sr up to a concentration of 1 mmol L−1. This clearly indicates that the HAP column technique is advantageous with respect to the capacity to adsorb 90Sr from water present in the environment.

Original languageEnglish
JournalJournal of Radioanalytical and Nuclear Chemistry
DOIs
Publication statusAccepted/In press - Jun 20 2015

Fingerprint

Strontium
Durapatite
Hydroxyapatite
Adsorption
Water
Divalent Cations
Waste Water
Heavy Metals
Sorbents
Biocompatibility
Solubility
Heavy metals
Minerals
Tooth
Bone
Wastewater
Positive ions
Bone and Bones

Keywords

  • Adsorption
  • Desorption
  • Divalent cation
  • Hydroxyapatite
  • Strontium

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Health, Toxicology and Mutagenesis
  • Pollution
  • Public Health, Environmental and Occupational Health
  • Spectroscopy
  • Radiology Nuclear Medicine and imaging

Cite this

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AU - Nishiyama, Yuichi

AU - Hanafusa, Tadashi

AU - Yamashita, Jun

AU - Yamamoto, Yoko

AU - Ono, Toshiro

PY - 2015/6/20

Y1 - 2015/6/20

N2 - Hydroxyapatite (HAP) is a main mineral constituent of bone and tooth and has an outstanding biocompatibility. HAP is a possible sorbent for heavy metals in wastewater due to its high adsorption capacity and low water solubility. We developed a removal system of 90Sr from aqueous solution by HAP column procedure. More than 90 % of 90Sr was adsorbed and removed from the 90Sr containing solution. Divalent cations, Ca2+, had little effect on the removal of 90Sr up to a concentration of 1 mmol L−1. This clearly indicates that the HAP column technique is advantageous with respect to the capacity to adsorb 90Sr from water present in the environment.

AB - Hydroxyapatite (HAP) is a main mineral constituent of bone and tooth and has an outstanding biocompatibility. HAP is a possible sorbent for heavy metals in wastewater due to its high adsorption capacity and low water solubility. We developed a removal system of 90Sr from aqueous solution by HAP column procedure. More than 90 % of 90Sr was adsorbed and removed from the 90Sr containing solution. Divalent cations, Ca2+, had little effect on the removal of 90Sr up to a concentration of 1 mmol L−1. This clearly indicates that the HAP column technique is advantageous with respect to the capacity to adsorb 90Sr from water present in the environment.

KW - Adsorption

KW - Desorption

KW - Divalent cation

KW - Hydroxyapatite

KW - Strontium

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