膨润土去除镉的科技创新性实验

Innovative experiment of science and technology on removal of cadmium from bentonite

借助大学生科技创新项目,通过3种不同方法对膨润土进行改性后,对废水中的镉离子进行了吸附研究。结果表明4种不同膨润土对镉离子的吸附效果均较好,吸附等温线可用Langmuir等温式拟合。通过该吸附性实验的科研锻炼,使学生将理论和实验相结合,培养了学生的科技创新意识和能力。

With the help of the university students＇ innovative project of science and technology,and after the modification of bentonites by three different methods,the adsorption of cadmium ions in wastewater is studied.The results show that four kinds of bentonites have better adsorption effect on cadmium ions,and the adsorption isotherm can be well fitted by the isothermal equation.Through this scientific research exercise of the adsorption experiment,students can combine theory with experiment,and their awareness and ability of scientific and technological innovation are trained.