KDF合金滤料去除饮用水中微量重金属的实验研究

对KDF滤料去除饮用水中微量重金属离子的影响因素进行了一系列的实验研究,分析了不同滤速、柱高下的去除率及相互影响情况,讨论了停留时间对去除率的影响。实验结果表明,滤速、滤柱高均通过停留时间影响去除率,两者只能在一定范围内单方面对去除率造成明显影响;停留时间是去除效率的决定性影响因素,去除率随着其增加而提高,但提高程度也会随着其增加量的提高而趋于平稳。

An Experimental Study on Removal of Heavy Metal Ions in Drinking Water by KDF Alloy Filtering Medium

A series of experiments have been made to study on influence factors of kinetic degradation fluxion (KDF) medium for heavy metal ion removal such as filtering velocity, thickness of the filter bed and detention time. Both of the filtering velocity and bed thickness could only remarkably affect the removal rate in some extent alone. It has been found that the detention time was the primary influence factor whilst its increase through changing the filtering velocity and bed thickness would result in enhancing the removal rate.