Adsorption and removal of strontium in aqueous solution by synthetic hydroxyapatite

作者：Nishiyama Yuichi; Hanafusa Tadashi; Yamashita Jun; Yamamoto Yoko; Ono Toshiro^*

来源：Journal of Radioanalytical and Nuclear Chemistry, 2016, 307(2): 1279-1285.

DOI：10.1007/s10967-015-4228-9

• Strontium
• Hydroxyapatite
• Adsorption
• Desorption
• Divalent cation

Hydroxyapatite (HAP) is a main mineral constituent of bone and tooth and has an outstanding bio-compatibility. 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 Sr-90 from aqueous solution by HAP column procedure. More than 90 % of Sr-90 was adsorbed and removed from the Sr-90 containing solution. Divalent cations, Ca2+, had little effect on the removal of Sr-90 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 Sr-90 from water present in the environment.

• 出版日期2016-2