摘要
以黑色电气石粉为原料,探讨了电气石粉对Pb2+的吸附作用,研究了吸附时间、用量、粒度、溶液初始浓度以及pH值对吸附的影响。实验结果表明,超细电气石粉对Pb2+有好的吸附效果,电气石粉吸附Pb2+的最佳条件是:吸附时间60min,电气石用量为20g·L-1,pH值为6.5,粒度为48μm。
The natural tourmaline has been.chosen to be raw material and processed to be superfine powder. The superfine powder of tourmaline is used in the absorption experiment of Pb^2＋ ion. Factors affecting the absorption of Pb^2＋ ion in solution, such as time, diameters, quantity of tourmaline, the initial Pb^2＋ ion concentrations and pH values were studied. The results of experiment ir,dicate the best condition of adsorption of Pb^2＋ ion is adsorption time 60 minutes, quantity of tourmaline 20 g·L^-1, pH 6.5, and diameter 48μm.
关键词
废水处理
电气石
PB^2+
净化原理
Wastewater treatment
Tourmaline
Pbion
Absorption mechanism
