重金属“化学定时炸弹”及其防治  

Heavy metal "chemical time bomb" and its prevention and control

作　　者：宋泽峰[1] 栾文楼[1] 崔邢涛[1] 

机构地区：[1]石家庄经济学院资源与环境工程研究所,河北石家庄050031

出　　处：《河北工业科技》2006年第2期115-119,共5页Hebei Journal of Industrial Science and Technology

基　　金：中国地质调查局资助项目(200414200007-2);石家庄经济学院学生科研基金资助项目

摘　　要：介绍了“化学定时炸弹”的概念及特点,指出重金属元素在土壤中的累积过程是典型的“化学定时炸弹”形成过程,一旦爆发将会产生巨大的生态与经济损失。若要避免此类事件的发生,应该重点研究重金属元素的不同形态的毒性差异以及在累积过程中重金属元素形态的转化,利用地球化学工程学、植物修复技术等方法将有害元素无害化或移除有害元素,从而有效地阻止“化学定时炸弹”的爆炸、消除“定时炸弹”的威胁。The article introduces the concept and characteristics of ＂chemical time bomb＂, and points out that the accumulation process of heavy metallic elements in soil is the typical ＂geochemical time bomb＂, which will result in huge loss once it erupts. In order to avoid this kind of things to occur, we should study the toxic difference of different elementary speciation of the heav- y metallic elements and the shape transformation of the heavy metallic elements in the course of accumulation process. Using such methods as geochemistry engineering, plant reclamation technology etc, to make the harmful element harmless or to remove the harmful elements can effectively prevent the detonation of ＂the chemical time bomb＂ and eliminate the threat of ＂time bomb＂.

关 键 词：重金属元素 元素形态 土壤 化学定时炸弹 

分 类 号：X131.3[环境科学与工程—环境科学]