Scholarlink

<p>Strontium isotopes are significant contaminants in radioactive liquids due to their high mobility and long-term radiological impact. In this context, this study investigates, under batch conditions, the influence of an external static magnetic field on the adsorption behavior of strontium ions from aqueous solutions onto natural pumice. The results of the infrared spectrum, zero charge point, zeta potential, X-ray diffraction, X-ray fluorescence, and scanning electron microscopy demonstrated that the pumice is a natural material. Specifically, the supreme removal efficiency was 79.2%. It was achieved by adding 0.1&#xa0;g of pumice to a neutral strontium solution with a concentration of 50&#xa0;ppm and mixing at 50&#xa0;rpm for 10&#xa0;min at room temperature. The mechanism study under these conditions proved that the Freundlich model and the pseudo-second order kinetics were appropriate to assign the experimental results. Besides, the magnetic field study under the mentioned optimal adsorption conditions was performed using three external static magnetic fields of three intensities, including 3000, 5000, and 7000 gauss, which were applied separately, resulting in a lowering the adsorption efficiency to 68.8%, 67.2%, and 70.8%, respectively. Thus, this study manifested a significant interference effect whereby applied static magnetic fields inhibit the removal of radionuclides, providing a cautionary boundary for the design of magnetic separation units in the nuclear industry.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Unveiling the inhibitory effect of static magnetic fields on the remediation of strontium-contaminated liquids using natural pumice

  • 期刊论文

  • 发表日期：

    2026年7月11日

查看全文
  • M. A. Gatea,
  • R. E. Jaafar,
  • Z. M. Abdalah

摘要

Strontium isotopes are significant contaminants in radioactive liquids due to their high mobility and long-term radiological impact. In this context, this study investigates, under batch conditions, the influence of an external static magnetic field on the adsorption behavior of strontium ions from aqueous solutions onto natural pumice. The results of the infrared spectrum, zero charge point, zeta potential, X-ray diffraction, X-ray fluorescence, and scanning electron microscopy demonstrated that the pumice is a natural material. Specifically, the supreme removal efficiency was 79.2%. It was achieved by adding 0.1 g of pumice to a neutral strontium solution with a concentration of 50 ppm and mixing at 50 rpm for 10 min at room temperature. The mechanism study under these conditions proved that the Freundlich model and the pseudo-second order kinetics were appropriate to assign the experimental results. Besides, the magnetic field study under the mentioned optimal adsorption conditions was performed using three external static magnetic fields of three intensities, including 3000, 5000, and 7000 gauss, which were applied separately, resulting in a lowering the adsorption efficiency to 68.8%, 67.2%, and 70.8%, respectively. Thus, this study manifested a significant interference effect whereby applied static magnetic fields inhibit the removal of radionuclides, providing a cautionary boundary for the design of magnetic separation units in the nuclear industry.