工业污染土壤中Cd的分布特征及化学形态分析  

Characteristics of Ddcium Distribution and Chemical Speciation in Industrial Polluted Soil

作　　者：铁梅[1] 张朝红[1] 刑志强[2] 孙铁彪[2] 臧树良[1] 李华为[3] 

机构地区：[1]辽宁大学环境科学系,辽宁沈阳110036 [2]辽宁大学化学科学与工程学院,辽宁沈阳110036 [3]沈阳师范大学化学与生命科学学院,辽宁沈阳110034

出　　处：《环境科学与管理》2006年第3期67-69,共3页Environmental Science and Management

基　　金：国家自然科学基金项目(20271024)

摘　　要：对工业污染地中重金属Cd的分布及存在的化学形态进行了深入系统的研究。结果表明：此类污染土壤在中性条件下,可溶态(水溶态、交换态和有机态)Cd含量较低,分别为0．68%、12．7%和12．4%,不可溶态Cd(颗粒态)约为74．4%。而在偏酸性介质中,可溶态Cd含量较高,约为74．9%,具有明显的可迁移转化倾向。A research for the distribution of Cd and chemical spcciafion in industrial polluted soil has been deeply and systematically studied. The result shows that the content of the soluble（water-soluble, exchangeable and organic） Cd is low, and separately is 0.68%,12.7% and 12.4%, unsoluble Cd（soil） is about 74.4% in the neutral condition in the polluted soil. While the content of soluble Cd is higher, and is about 74.9%. have the tendency of obvious migrate and transform, in the acidic condition.

关 键 词：土壤 镉 形态分析 

分 类 号：X131.3[环境科学与工程—环境科学]