土壤镉污染的原位钝化控制技术研究进展  

Review of Cadmium Pollution in Soil and Its in-situ Remediation

作　　者：龙思斯 彭亮[1] 杨勇 雷鸣[1] 

机构地区：[1]湖南农业大学资源环境学院,湖南长沙410128 [2]湖南安邦新农业科技股份有限公司,湖南衡阳421200 [3]湖南省安邦农业研究院,湖南衡阳421200

出　　处：《湖南农业科学（下半月）》2014年第11期43-45,50,共4页

基　　金：国家自然科学基金资助项目(21007014/B0702);湖南省安邦农业研究院资助项目

摘　　要：镉是南方稻田土壤中主要的污染物质,可通过食物链危及动物和人类的健康。通过文献学分析发现土壤中镉污染的原位钝化技术研究中最常用的是施用石灰和硅肥,重点阐述了土壤中镉污染的原位钝化控制技术,包括石灰、赤泥、硅肥、钾肥、钙镁磷肥、粉煤灰等物质或肥料等无机改良剂,及禽畜粪便、作物秸秆、泥炭、豆科绿肥和堆肥等有机改良剂的应用效果,指出应加强原位钝化控制镉污染土壤及其最合适用量水平和施用方法的研究,尤其要关注如何合理利用原位钝化剂阻控土壤中镉的迁移。Cadmium is a major contaminator in paddy field and rice in south of China. It would pose health risk to animal and human through the food chain. The additives such as silicon fertilizer and lime were commonly reported among remediation methods in the literatures. In present study, the in-situ remediation technology for Cd-contaminated soil, including inorganic amendments（lime, red mud, silicon fertilizer,potash, calcium magnesium phosphate fertilizer, fly ash and fertilizer, etc）, and organic amendments（livestock excrement, crop straw, peat,leguminous green manure and compost, etc） were explained. The appropriate dosage and application process of additives for in-situ remediation would be studied. Moreover, study about how to reduce Cd transfer from soil to rice should be paid more attention to.

关 键 词：土壤 水稻 镉污染 原位钝化 综述 

分 类 号：X53[环境科学与工程—环境工程]