矿产综合利用2024，Vol.45Issue(3)：50-57,8.DOI:10.3969/j.issn.1000-6532.2024.03.008
改性膨润土对污水中重金属离子吸附实验研究
Experimental Study on the Adsorption of Heavy Metal Ions in Wastewater by Modified Bentonite
陈卫琴 1黄树梅 1李杨 2孙超3
作者信息
- 1. 河北地质职工大学 河北 石家庄 050081
- 2. 河北省国土资源勘查中心 河北石家庄 050081
- 3. 河北省地质环境监测院 河北 石家庄 050081
- 折叠
摘要
Abstract
This is an article in the field of ceramics and composites.In order to study the adsorption effect of modified bentonite on heavy metal ions in sewage,the effects of pH value,initial concentration,time,solid-liquid ratio,temperature and particle size on the adsorption effect of bentonite were analyzed.And microscopic means were used to study the changes of the internal mineral composition of the bentonite before and after the adsorption of heavy metal ions and the change law of the infrared spectra.The results showed that when the modified bentonite content was 0.2 g,the adsorption time was 1.5 h,the temperature was set to 40 ℃,the pH value was set to 6,the initial concentration was set to 200 mg/L and the solid-to-liquid ratio was set to 0.8 g/L,the adsorption effect was the best.After the modified bentonite had undergone an adsorption test,an obvious CuSO4 diffraction peak could be detected.However,other mineral components inside the modified bentonite remained unchanged,which also showed that the modified bentonite could effectively adsorb copper ions in sewage.关键词
陶瓷及复合材料/重金属离子/改性膨润土/矿物成分/红外光谱图/固液比/粒径Key words
Ceramics and composites/Heavy metal ion/Modified bentonite/Mineral composition/Infrared spectrum/Solid-liquid ratio/Particle size分类
矿业与冶金引用本文复制引用
陈卫琴,黄树梅,李杨,孙超..改性膨润土对污水中重金属离子吸附实验研究[J].矿产综合利用,2024,45(3):50-57,8.
