重金属去除方法的研究进展

Research Development of Removal Methods for Heavy Metal Ions

重金属作为环境污染的一大分支,其对环境和动植物的危害显著。重金属废水的污染问题已成为当今环境保护领域的突出问题之一,受到世界各国的广泛关注。文章对重金属去除的各种方法的应用进展进行了评述,分别从土壤淋洗技术、吸附法、离子液体萃取法、氧化还原法、电凝聚法和半导体非均相光催化技术六个方面进行论述,分析了优缺点,展望了应用前景。

Heavy metal waste water is becoming one of the most serious environment problems today. More and more countries have paid attention to how to remove the danger of heavy metals and recover precious metal in waste water. In this paper,the frequently used treatment methods and their advantages and disadvantages were summarized,which included soil leaching technology、adsorption、ionic liquid extraction、oxidation-reduction method、electrocoagulation method and semiconductor heterogeneous photocatalysis. It was also elaborated that the developing tendency and application foreground of treating waste water with heavy metals.