Research Progress in the Selective Adsorption of Removal of Heavy Metal Ions from Wastewater

摘要

Toxic heavy metals in water have been a serious hazard human beings health and eco-environment. However, these heavy metals are usually important natural resources. How separate them from polluted water and reuse them, which is a hot issue in environmental protection field. Adsorption is widely used in the removal of heavy metal ions from Wastewater due to stable, reliable, simple, low energy consumption, low secondary pollution, recycling. Selective adsorption is preparing corresponding adsorbing materials or setting certain solution conditions, according to the different characteristics of heavy metals, such as electronegativity, degree of confusion and ion bound state, so as to separate heavy metal ions from wastewater. Selective adsorption has outstanding advantages in the separation and recovery of heavy metals. Research progress in selective adsorption of heavy metals in recent years is summarized. And the research progress of ion exchange resin and ion imprinted material in selective adsorption of heavy metals is Focused on.