焙烧水滑石吸附脱除水中硫酸根离子的研究REMOVAL OF SULFATE FROM AQUEOUS SOLUTION BY ADSORPTION OF IT ON LAYERED DOUBLE HYDROXIDES
李冬梅;王海增;王立秋;赵正鹏;
摘要(Abstract):
利用焙烧水滑石对水中硫酸根离子进行吸附性能研究,考查了初始pH值、吸附时间、吸附剂用量等条件对吸附的影响。结果表明,焙烧水滑石对水中硫酸根离子具有良好的吸附能力。X射线衍射分析结果表明,水滑石及其焙烧产物对硫酸根的吸附机理不同。pH值对吸附的影响较大,pH值较低时吸附效果较好。吸附平衡符合Langmuir方程,室温下饱和吸附量为32.895 mg/g。
关键词(KeyWords): 水滑石;硫酸根;吸附;焙烧
基金项目(Foundation): 国家自然科学基金项目(20477041)
作者(Authors): 李冬梅;王海增;王立秋;赵正鹏;
DOI: 10.16461/j.cnki.1000-4734.2007.02.003
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