期刊论文

中文

安全与环境学报

1009-6094

2024

24

05

1977-1984

10.13637/j.issn.1009-6094.2023.1281

2020JJ4157:湖南省自然科学基金面上项目

本校为第一机构

利用富铝精炼渣中的CaO和Al2O3等化学成分处理高质量浓度模拟含氟废水，研究温度、pH值、渣投加质量浓度、氟离子质量浓度等因素对处理效果的影响。同时，通过测定废水中总硬度变化，并利用X-射线衍射（X-ray Diffraction, XRD）、扫描电子显微镜（Scanning Electron Microscope, SEM）和X-射线光电子能谱（X-ray Photoelectron Spectroscopy, XPS）等分析手段探索富铝精炼渣去除氟离子的机理。研究结果显示：反应体系偏酸性，反应温度处于高温区域（60～80℃）时有利于氟离子去除。当pH=6,反应温度为70℃,反应时间为20 min时，加入15 g/L的精炼渣，500 mg/L和1 000 mg/L模拟含氟废水中氟离子的...

Al-rich refining slag with CaO and Al2O3 as main components was used to treat the high concentration simulated fluoride-containing wastewater.The influences of temperature,pH value,dosage,and fluoride ions concentration on the fluoride ions removal efficiency were investigated in this study.Besides,the removal mechanism was clarified through measuring the change of total hardness in stimulated wastewater,in combination with XRD,SEM,and XPS analysis.The results show that the total CaO content of the Al-rich refining slag in this study exceeds 50...