长江水中泥沙及悬浮粒子对Pb^(2+)的吸附作用研究

Study on the Absorption of Silt in the Yangtze River on Pb^(2+)

对长江水中泥沙与Pb2+的吸附作用进行研究。结果表明,长江水中泥沙与Pb2+进行阳离子交换反应,河水pH值是控制Pb2+与泥沙交换吸附的主要因素,泥沙浓度是控制江水中重金属迁移转化的主要因素;Pb2+初始浓度增大时,吸附作用增强。

The absorption of silt in the Yangtze River on Pb^2＋ is studied in this paper.The results show that pH value is the main factor controlling the exchanging absorption of silt and Pb^2＋ and the concentration of silt is the main factor controlling the migration and transformation of heavy metals in the interaction between the silt and Pb^2＋;the absorption function increases with the increase of the starting concentration of Pb^2＋.